diff options
174 files changed, 13956 insertions, 2193 deletions
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power index f4551816329e..50b368d490b5 100644 --- a/Documentation/ABI/testing/sysfs-power +++ b/Documentation/ABI/testing/sysfs-power @@ -256,3 +256,15 @@ Description: Writing a "1" enables this printing while writing a "0" disables it. The default value is "0". Reading from this file will display the current value. + +What: /sys/power/pm_wakeup_irq +Date: April 2015 +Contact: Alexandra Yates <alexandra.yates@linux.intel.org> +Description: + The /sys/power/pm_wakeup_irq file reports to user space the IRQ + number of the first wakeup interrupt (that is, the first + interrupt from an IRQ line armed for system wakeup) seen by the + kernel during the most recent system suspend/resume cycle. + + This output is useful for system wakeup diagnostics of spurious + wakeup interrupts. diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 22a4b687ea5b..a491aaecc8bb 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -167,7 +167,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. acpi= [HW,ACPI,X86,ARM64] Advanced Configuration and Power Interface - Format: { force | off | strict | noirq | rsdt } + Format: { force | off | strict | noirq | rsdt | + copy_dsdt } force -- enable ACPI if default was off off -- disable ACPI if default was on noirq -- do not use ACPI for IRQ routing @@ -1546,6 +1547,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. hwp_only Only load intel_pstate on systems which support hardware P state control (HWP) if available. + no_acpi + Don't use ACPI processor performance control objects + _PSS and _PPC specified limits. intremap= [X86-64, Intel-IOMMU] on enable Interrupt Remapping (default) diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c index a66e37e211a9..97b22fa7cb3a 100644 --- a/arch/arm/kernel/time.c +++ b/arch/arm/kernel/time.c @@ -120,6 +120,6 @@ void __init time_init(void) #ifdef CONFIG_COMMON_CLK of_clk_init(NULL); #endif - clocksource_of_init(); + clocksource_probe(); } } diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c index 9602cc12d2f1..3878494bd118 100644 --- a/arch/arm/mach-imx/mach-imx6q.c +++ b/arch/arm/mach-imx/mach-imx6q.c @@ -350,7 +350,7 @@ static void __init imx6q_opp_init(void) return; } - if (of_init_opp_table(cpu_dev)) { + if (dev_pm_opp_of_add_table(cpu_dev)) { pr_warn("failed to init OPP table\n"); goto put_node; } diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index a55655127ef2..bef41837bf7f 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -647,7 +647,7 @@ static OMAP_SYS_32K_TIMER_INIT(4, 1, "timer_32k_ck", "ti,timer-alwon", void __init omap4_local_timer_init(void) { omap4_sync32k_timer_init(); - clocksource_of_init(); + clocksource_probe(); } #else void __init omap4_local_timer_init(void) @@ -663,7 +663,7 @@ void __init omap5_realtime_timer_init(void) omap4_sync32k_timer_init(); realtime_counter_init(); - clocksource_of_init(); + clocksource_probe(); } #endif /* CONFIG_SOC_OMAP5 || CONFIG_SOC_DRA7XX */ diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c index b6cf3b449428..251c7b9c5f9b 100644 --- a/arch/arm/mach-rockchip/rockchip.c +++ b/arch/arm/mach-rockchip/rockchip.c @@ -67,7 +67,7 @@ static void __init rockchip_timer_init(void) } of_clk_init(NULL); - clocksource_of_init(); + clocksource_probe(); } static void __init rockchip_dt_init(void) diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c index 6bfa6407a27c..1e572a903f8e 100644 --- a/arch/arm/mach-shmobile/setup-r8a7779.c +++ b/arch/arm/mach-shmobile/setup-r8a7779.c @@ -97,7 +97,7 @@ static u32 __init r8a7779_read_mode_pins(void) static void __init r8a7779_init_time(void) { r8a7779_clocks_init(r8a7779_read_mode_pins()); - clocksource_of_init(); + clocksource_probe(); } static const char *const r8a7779_compat_dt[] __initconst = { diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c index aa3339258d9c..9eccde3c7b13 100644 --- a/arch/arm/mach-shmobile/setup-rcar-gen2.c +++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c @@ -128,7 +128,7 @@ void __init rcar_gen2_timer_init(void) #endif /* CONFIG_ARM_ARCH_TIMER */ rcar_gen2_clocks_init(mode); - clocksource_of_init(); + clocksource_probe(); } struct memory_reserve_config { diff --git a/arch/arm/mach-spear/spear13xx.c b/arch/arm/mach-spear/spear13xx.c index b7afce6795f4..ca2f6a82a414 100644 --- a/arch/arm/mach-spear/spear13xx.c +++ b/arch/arm/mach-spear/spear13xx.c @@ -124,5 +124,5 @@ void __init spear13xx_timer_init(void) clk_put(pclk); spear_setup_of_timer(); - clocksource_of_init(); + clocksource_probe(); } diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c index 65bab2876343..223c9e99380d 100644 --- a/arch/arm/mach-sunxi/sunxi.c +++ b/arch/arm/mach-sunxi/sunxi.c @@ -46,7 +46,7 @@ static void __init sun6i_timer_init(void) of_clk_init(NULL); if (IS_ENABLED(CONFIG_RESET_CONTROLLER)) sun6i_reset_init(); - clocksource_of_init(); + clocksource_probe(); } DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family") diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 35670b15f281..546338bbacf8 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -408,7 +408,7 @@ static const char * u300_board_compat[] = { DT_MACHINE_START(U300_DT, "U300 S335/B335 (Device Tree)") .map_io = u300_map_io, .init_irq = u300_init_irq_dt, - .init_time = clocksource_of_init, + .init_time = clocksource_probe, .init_machine = u300_init_machine_dt, .restart = u300_restart, .dt_compat = u300_board_compat, diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c index ff28d8ad1ed7..8d2d233f8e6c 100644 --- a/arch/arm/mach-ux500/timer.c +++ b/arch/arm/mach-ux500/timer.c @@ -44,5 +44,5 @@ void __init ux500_timer_init(void) dt_fail: clksrc_dbx500_prcmu_init(prcmu_timer_base); - clocksource_of_init(); + clocksource_probe(); } diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c index 5a6e4e20ca0a..6f39d03cc27e 100644 --- a/arch/arm/mach-zynq/common.c +++ b/arch/arm/mach-zynq/common.c @@ -154,7 +154,7 @@ static void __init zynq_timer_init(void) zynq_clock_init(); of_clk_init(NULL); - clocksource_of_init(); + clocksource_probe(); } static struct map_desc zynq_cortex_a9_scu_map __initdata = { diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 208cec08a74f..6894205797a3 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -12,7 +12,6 @@ #ifndef _ASM_ACPI_H #define _ASM_ACPI_H -#include <linux/irqchip/arm-gic-acpi.h> #include <linux/mm.h> #include <linux/psci.h> diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h index bbb251b14746..94c53674a31d 100644 --- a/arch/arm64/include/asm/irq.h +++ b/arch/arm64/include/asm/irq.h @@ -1,8 +1,6 @@ #ifndef __ASM_IRQ_H #define __ASM_IRQ_H -#include <linux/irqchip/arm-gic-acpi.h> - #include <asm-generic/irq.h> struct pt_regs; @@ -10,15 +8,4 @@ struct pt_regs; extern void migrate_irqs(void); extern void set_handle_irq(void (*handle_irq)(struct pt_regs *)); -static inline void acpi_irq_init(void) -{ - /* - * Hardcode ACPI IRQ chip initialization to GICv2 for now. - * Proper irqchip infrastructure will be implemented along with - * incoming GICv2m|GICv3|ITS bits. - */ - acpi_gic_init(); -} -#define acpi_irq_init acpi_irq_init - #endif diff --git a/arch/arm64/kernel/acpi.c b/arch/arm64/kernel/acpi.c index 19de7537e7d3..d6463bba2360 100644 --- a/arch/arm64/kernel/acpi.c +++ b/arch/arm64/kernel/acpi.c @@ -205,28 +205,3 @@ void __init acpi_boot_table_init(void) disable_acpi(); } } - -void __init acpi_gic_init(void) -{ - struct acpi_table_header *table; - acpi_status status; - acpi_size tbl_size; - int err; - - if (acpi_disabled) - return; - - status = acpi_get_table_with_size(ACPI_SIG_MADT, 0, &table, &tbl_size); - if (ACPI_FAILURE(status)) { - const char *msg = acpi_format_exception(status); - - pr_err("Failed to get MADT table, %s\n", msg); - return; - } - - err = gic_v2_acpi_init(table); - if (err) - pr_err("Failed to initialize GIC IRQ controller"); - - early_acpi_os_unmap_memory((char *)table, tbl_size); -} diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c index 149151fb42bb..13339b6ffc1a 100644 --- a/arch/arm64/kernel/time.c +++ b/arch/arm64/kernel/time.c @@ -67,16 +67,10 @@ void __init time_init(void) u32 arch_timer_rate; of_clk_init(NULL); - clocksource_of_init(); + clocksource_probe(); tick_setup_hrtimer_broadcast(); - /* - * Since ACPI or FDT will only one be available in the system, - * we can use acpi_generic_timer_init() here safely - */ - acpi_generic_timer_init(); - arch_timer_rate = arch_timer_get_rate(); if (!arch_timer_rate) panic("Unable to initialise architected timer.\n"); diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h index 36d2c1e3928b..07039d168f37 100644 --- a/arch/ia64/include/asm/pci.h +++ b/arch/ia64/include/asm/pci.h @@ -64,11 +64,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus, #define pci_legacy_read platform_pci_legacy_read #define pci_legacy_write platform_pci_legacy_write -struct iospace_resource { - struct list_head list; - struct resource res; -}; - struct pci_controller { struct acpi_device *companion; void *iommu; diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c index 7cc3be9fa7c6..8f6ac2f8ae4c 100644 --- a/arch/ia64/pci/pci.c +++ b/arch/ia64/pci/pci.c @@ -115,33 +115,13 @@ struct pci_ops pci_root_ops = { .write = pci_write, }; -/* Called by ACPI when it finds a new root bus. */ - -static struct pci_controller *alloc_pci_controller(int seg) -{ - struct pci_controller *controller; - - controller = kzalloc(sizeof(*controller), GFP_KERNEL); - if (!controller) - return NULL; - - controller->segment = seg; - return controller; -} - struct pci_root_info { - struct acpi_device *bridge; - struct pci_controller *controller; - struct list_head resources; - struct resource *res; - resource_size_t *res_offset; - unsigned int res_num; + struct acpi_pci_root_info common; + struct pci_controller controller; struct list_head io_resources; - char *name; }; -static unsigned int -new_space (u64 phys_base, int sparse) +static unsigned int new_space(u64 phys_base, int sparse) { u64 mmio_base; int i; @@ -168,39 +148,36 @@ new_space (u64 phys_base, int sparse) return i; } -static u64 add_io_space(struct pci_root_info *info, - struct acpi_resource_address64 *addr) +static int add_io_space(struct device *dev, struct pci_root_info *info, + struct resource_entry *entry) { - struct iospace_resource *iospace; - struct resource *resource; + struct resource_entry *iospace; + struct resource *resource, *res = entry->res; char *name; unsigned long base, min, max, base_port; unsigned int sparse = 0, space_nr, len; - len = strlen(info->name) + 32; - iospace = kzalloc(sizeof(*iospace) + len, GFP_KERNEL); + len = strlen(info->common.name) + 32; + iospace = resource_list_create_entry(NULL, len); if (!iospace) { - dev_err(&info->bridge->dev, - "PCI: No memory for %s I/O port space\n", - info->name); - goto out; + dev_err(dev, "PCI: No memory for %s I/O port space\n", + info->common.name); + return -ENOMEM; } - name = (char *)(iospace + 1); - - min = addr->address.minimum; - max = min + addr->address.address_length - 1; - if (addr->info.io.translation_type == ACPI_SPARSE_TRANSLATION) + if (res->flags & IORESOURCE_IO_SPARSE) sparse = 1; - - space_nr = new_space(addr->address.translation_offset, sparse); + space_nr = new_space(entry->offset, sparse); if (space_nr == ~0) goto free_resource; + name = (char *)(iospace + 1); + min = res->start - entry->offset; + max = res->end - entry->offset; base = __pa(io_space[space_nr].mmio_base); base_port = IO_SPACE_BASE(space_nr); - snprintf(name, len, "%s I/O Ports %08lx-%08lx", info->name, - base_port + min, base_port + max); + snprintf(name, len, "%s I/O Ports %08lx-%08lx", info->common.name, + base_port + min, base_port + max); /* * The SDM guarantees the legacy 0-64K space is sparse, but if the @@ -210,270 +187,125 @@ static u64 add_io_space(struct pci_root_info *info, if (space_nr == 0) sparse = 1; - resource = &iospace->res; + resource = iospace->res; resource->name = name; resource->flags = IORESOURCE_MEM; resource->start = base + (sparse ? IO_SPACE_SPARSE_ENCODING(min) : min); resource->end = base + (sparse ? IO_SPACE_SPARSE_ENCODING(max) : max); if (insert_resource(&iomem_resource, resource)) { - dev_err(&info->bridge->dev, - "can't allocate host bridge io space resource %pR\n", - resource); + dev_err(dev, + "can't allocate host bridge io space resource %pR\n", + resource); goto free_resource; } - list_add_tail(&iospace->list, &info->io_resources); - return base_port; + entry->offset = base_port; + res->start = min + base_port; + res->end = max + base_port; + resource_list_add_tail(iospace, &info->io_resources); -free_resource: - kfree(iospace); -out: - return ~0; -} - -static acpi_status resource_to_window(struct acpi_resource *resource, - struct acpi_resource_address64 *addr) -{ - acpi_status status; + return 0; - /* - * We're only interested in _CRS descriptors that are - * - address space descriptors for memory or I/O space - * - non-zero size - */ - status = acpi_resource_to_address64(resource, addr); - if (ACPI_SUCCESS(status) && - (addr->resource_type == ACPI_MEMORY_RANGE || - addr->resource_type == ACPI_IO_RANGE) && - addr->address.address_length) - return AE_OK; - - return AE_ERROR; +free_resource: + resource_list_free_entry(iospace); + return -ENOSPC; } -static acpi_status count_window(struct acpi_resource *resource, void *data) +/* + * An IO port or MMIO resource assigned to a PCI host bridge may be + * consumed by the host bridge itself or available to its child + * bus/devices. The ACPI specification defines a bit (Producer/Consumer) + * to tell whether the resource is consumed by the host bridge itself, + * but firmware hasn't used that bit consistently, so we can't rely on it. + * + * On x86 and IA64 platforms, all IO port and MMIO resources are assumed + * to be available to child bus/devices except one special case: + * IO port [0xCF8-0xCFF] is consumed by the host bridge itself + * to access PCI configuration space. + * + * So explicitly filter out PCI CFG IO ports[0xCF8-0xCFF]. + */ +static bool resource_is_pcicfg_ioport(struct resource *res) { - unsigned int *windows = (unsigned int *) data; - struct acpi_resource_address64 addr; - acpi_status status; - - status = resource_to_window(resource, &addr); - if (ACPI_SUCCESS(status)) - (*windows)++; - - return AE_OK; + return (res->flags & IORESOURCE_IO) && + res->start == 0xCF8 && res->end == 0xCFF; } -static acpi_status add_window(struct acpi_resource *res, void *data) +static int pci_acpi_root_prepare_resources(struct acpi_pci_root_info *ci) { - struct pci_root_info *info = data; - struct resource *resource; - struct acpi_resource_address64 addr; - acpi_status status; - unsigned long flags, offset = 0; - struct resource *root; - - /* Return AE_OK for non-window resources to keep scanning for more */ - status = resource_to_window(res, &addr); - if (!ACPI_SUCCESS(status)) - return AE_OK; - - if (addr.resource_type == ACPI_MEMORY_RANGE) { - flags = IORESOURCE_MEM; - root = &iomem_resource; - offset = addr.address.translation_offset; - } else if (addr.resource_type == ACPI_IO_RANGE) { - flags = IORESOURCE_IO; - root = &ioport_resource; - offset = add_io_space(info, &addr); - if (offset == ~0) - return AE_OK; - } else - return AE_OK; - - resource = &info->res[info->res_num]; - resource->name = info->name; - resource->flags = flags; - resource->start = addr.address.minimum + offset; - resource->end = resource->start + addr.address.address_length - 1; - info->res_offset[info->res_num] = offset; - - if (insert_resource(root, resource)) { - dev_err(&info->bridge->dev, - "can't allocate host bridge window %pR\n", - resource); - } else { - if (offset) - dev_info(&info->bridge->dev, "host bridge window %pR " - "(PCI address [%#llx-%#llx])\n", - resource, - resource->start - offset, - resource->end - offset); - else - dev_info(&info->bridge->dev, - "host bridge window %pR\n", resource); + struct device *dev = &ci->bridge->dev; + struct pci_root_info *info; + struct resource *res; + struct resource_entry *entry, *tmp; + int status; + + status = acpi_pci_probe_root_resources(ci); + if (status > 0) { + info = container_of(ci, struct pci_root_info, common); + resource_list_for_each_entry_safe(entry, tmp, &ci->resources) { + res = entry->res; + if (res->flags & IORESOURCE_MEM) { + /* + * HP's firmware has a hack to work around a + * Windows bug. Ignore these tiny memory ranges. + */ + if (resource_size(res) <= 16) { + resource_list_del(entry); + insert_resource(&iomem_resource, + entry->res); + resource_list_add_tail(entry, + &info->io_resources); + } + } else if (res->flags & IORESOURCE_IO) { + if (resource_is_pcicfg_ioport(entry->res)) + resource_list_destroy_entry(entry); + else if (add_io_space(dev, info, entry)) + resource_list_destroy_entry(entry); + } + } } - /* HP's firmware has a hack to work around a Windows bug. - * Ignore these tiny memory ranges */ - if (!((resource->flags & IORESOURCE_MEM) && - (resource->end - resource->start < 16))) - pci_add_resource_offset(&info->resources, resource, - info->res_offset[info->res_num]); - - info->res_num++; - return AE_OK; -} -static void free_pci_root_info_res(struct pci_root_info *info) -{ - struct iospace_resource *iospace, *tmp; - - list_for_each_entry_safe(iospace, tmp, &info->io_resources, list) - kfree(iospace); - - kfree(info->name); - kfree(info->res); - info->res = NULL; - kfree(info->res_offset); - info->res_offset = NULL; - info->res_num = 0; - kfree(info->controller); - info->controller = NULL; + return status; } -static void __release_pci_root_info(struct pci_root_info *info) +static void pci_acpi_root_release_info(struct acpi_pci_root_info *ci) { - int i; - struct resource *res; - struct iospace_resource *iospace; + struct pci_root_info *info; + struct resource_entry *entry, *tmp; - list_for_each_entry(iospace, &info->io_resources, list) - release_resource(&iospace->res); - - for (i = 0; i < info->res_num; i++) { - res = &info->res[i]; - - if (!res->parent) - continue; - - if (!(res->flags & (IORESOURCE_MEM | IORESOURCE_IO))) - continue; - - release_resource(res); + info = container_of(ci, struct pci_root_info, common); + resource_list_for_each_entry_safe(entry, tmp, &info->io_resources) { + release_resource(entry->res); + resource_list_destroy_entry(entry); } - - free_pci_root_info_res(info); kfree(info); } -static void release_pci_root_info(struct pci_host_bridge *bridge) -{ - struct pci_root_info *info = bridge->release_data; - - __release_pci_root_info(info); -} - -static int -probe_pci_root_info(struct pci_root_info *info, struct acpi_device *device, - int busnum, int domain) -{ - char *name; - - name = kmalloc(16, GFP_KERNEL); - if (!name) - return -ENOMEM; - - sprintf(name, "PCI Bus %04x:%02x", domain, busnum); - info->bridge = device; - info->name = name; - - acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_window, - &info->res_num); - if (info->res_num) { - info->res = - kzalloc_node(sizeof(*info->res) * info->res_num, - GFP_KERNEL, info->controller->node); - if (!info->res) { - kfree(name); - return -ENOMEM; - } - - info->res_offset = - kzalloc_node(sizeof(*info->res_offset) * info->res_num, - GFP_KERNEL, info->controller->node); - if (!info->res_offset) { - kfree(name); - kfree(info->res); - info->res = NULL; - return -ENOMEM; - } - - info->res_num = 0; - acpi_walk_resources(device->handle, METHOD_NAME__CRS, - add_window, info); - } else - kfree(name); - - return 0; -} +static struct acpi_pci_root_ops pci_acpi_root_ops = { + .pci_ops = &pci_root_ops, + .release_info = pci_acpi_root_release_info, + .prepare_resources = pci_acpi_root_prepare_resources, +}; struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { struct acpi_device *device = root->device; - int domain = root->segment; - int bus = root->secondary.start; - struct pci_controller *controller; - struct pci_root_info *info = NULL; - int busnum = root->secondary.start; - struct pci_bus *pbus; - int ret; - - controller = alloc_pci_controller(domain); - if (!controller) - return NULL; - - controller->companion = device; - controller->node = acpi_get_node(device->handle); + struct pci_root_info *info; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) { dev_err(&device->dev, - "pci_bus %04x:%02x: ignored (out of memory)\n", - domain, busnum); - kfree(controller); + "pci_bus %04x:%02x: ignored (out of memory)\n", + root->segment, (int)root->secondary.start); return NULL; } - info->controller = controller; + info->controller.segment = root->segment; + info->controller.companion = device; + info->controller.node = acpi_get_node(device->handle); INIT_LIST_HEAD(&info->io_resources); - INIT_LIST_HEAD(&info->resources); - - ret = probe_pci_root_info(info, device, busnum, domain); - if (ret) { - kfree(info->controller); - kfree(info); - return NULL; - } - /* insert busn resource at first */ - pci_add_resource(&info->resources, &root->secondary); - /* - * See arch/x86/pci/acpi.c. - * The desired pci bus might already be scanned in a quirk. We - * should handle the case here, but it appears that IA64 hasn't - * such quirk. So we just ignore the case now. - */ - pbus = pci_create_root_bus(NULL, bus, &pci_root_ops, controller, - &info->resources); - if (!pbus) { - pci_free_resource_list(&info->resources); - __release_pci_root_info(info); - return NULL; - } - - pci_set_host_bridge_release(to_pci_host_bridge(pbus->bridge), - release_pci_root_info, info); - pci_scan_child_bus(pbus); - return pbus; + return acpi_pci_root_create(root, &pci_acpi_root_ops, + &info->common, &info->controller); } int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index ab5b488e1fde..89a2a9394927 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -194,7 +194,7 @@ void __init time_init(void) { of_clk_init(NULL); setup_cpuinfo_clk(); - clocksource_of_init(); + clocksource_probe(); } #ifdef CONFIG_DEBUG_FS diff --git a/arch/mips/pistachio/time.c b/arch/mips/pistachio/time.c index 8a377346f0ca..1022201b2beb 100644 --- a/arch/mips/pistachio/time.c +++ b/arch/mips/pistachio/time.c @@ -39,7 +39,7 @@ void __init plat_time_init(void) struct clk *clk; of_clk_init(NULL); - clocksource_of_init(); + clocksource_probe(); np = of_get_cpu_node(0, NULL); if (!np) { diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c index feb5a9bf98b4..25c4a61779f1 100644 --- a/arch/mips/ralink/clk.c +++ b/arch/mips/ralink/clk.c @@ -75,5 +75,5 @@ void __init plat_time_init(void) pr_info("CPU Clock: %ldMHz\n", clk_get_rate(clk) / 1000000); mips_hpt_frequency = clk_get_rate(clk) / 2; clk_put(clk); - clocksource_of_init(); + clocksource_probe(); } diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c index bbc3f9157f9c..e835dda2bfe2 100644 --- a/arch/nios2/kernel/time.c +++ b/arch/nios2/kernel/time.c @@ -324,7 +324,7 @@ void __init time_init(void) if (count < 2) panic("%d timer is found, it needs 2 timers in system\n", count); - clocksource_of_init(); + clocksource_probe(); } CLOCKSOURCE_OF_DECLARE(nios2_timer, ALTR_TIMER_COMPATIBLE, nios2_time_init); diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index b8c14bb7fc8f..9f3905697f12 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -206,6 +206,13 @@ #define MSR_GFX_PERF_LIMIT_REASONS 0x000006B0 #define MSR_RING_PERF_LIMIT_REASONS 0x000006B1 +/* Config TDP MSRs */ +#define MSR_CONFIG_TDP_NOMINAL 0x00000648 +#define MSR_CONFIG_TDP_LEVEL1 0x00000649 +#define MSR_CONFIG_TDP_LEVEL2 0x0000064A +#define MSR_CONFIG_TDP_CONTROL 0x0000064B +#define MSR_TURBO_ACTIVATION_RATIO 0x0000064C + /* Hardware P state interface */ #define MSR_PPERF 0x0000064e #define MSR_PERF_LIMIT_REASONS 0x0000064f diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index ded848c20e05..e75907601a41 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -976,6 +976,8 @@ static int __init acpi_parse_madt_lapic_entries(void) { int count; int x2count = 0; + int ret; + struct acpi_subtable_proc madt_proc[2]; if (!cpu_has_apic) return -ENODEV; @@ -999,10 +1001,22 @@ static int __init acpi_parse_madt_lapic_entries(void) acpi_parse_sapic, MAX_LOCAL_APIC); if (!count) { - x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC, - acpi_parse_x2apic, MAX_LOCAL_APIC); - count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC, - acpi_parse_lapic, MAX_LOCAL_APIC); + memset(madt_proc, 0, sizeof(madt_proc)); + madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC; + madt_proc[0].handler = acpi_parse_lapic; + madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC; + madt_proc[1].handler = acpi_parse_x2apic; + ret = acpi_table_parse_entries_array(ACPI_SIG_MADT, + sizeof(struct acpi_table_madt), + madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC); + if (ret < 0) { + printk(KERN_ERR PREFIX + "Error parsing LAPIC/X2APIC entries\n"); + return ret; + } + + x2count = madt_proc[0].count; + count = madt_proc[1].count; } if (!count && !x2count) { printk(KERN_ERR PREFIX "No LAPIC entries present\n"); diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index ff9911707160..3cd69832d7f4 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -4,16 +4,15 @@ #include <linux/irq.h> #include <linux/dmi.h> #include <linux/slab.h> +#include <linux/pci-acpi.h> #include <asm/numa.h> #include <asm/pci_x86.h> struct pci_root_info { - struct acpi_device *bridge; - char name[16]; + struct acpi_pci_root_info common; struct pci_sysdata sd; #ifdef CONFIG_PCI_MMCONFIG bool mcfg_added; - u16 segment; u8 start_bus; u8 end_bus; #endif @@ -178,15 +177,18 @@ static int check_segment(u16 seg, struct device *dev, char *estr) return 0; } -static int setup_mcfg_map(struct pci_root_info *info, u16 seg, u8 start, - u8 end, phys_addr_t addr) +static int setup_mcfg_map(struct acpi_pci_root_info *ci) { - int result; - struct device *dev = &info->bridge->dev; + int result, seg; + struct pci_root_info *info; + struct acpi_pci_root *root = ci->root; + struct device *dev = &ci->bridge->dev; - info->start_bus = start; - info->end_bus = end; + info = container_of(ci, struct pci_root_info, common); + info->start_bus = (u8)root->secondary.start; + info->end_bus = (u8)root->secondary.end; info->mcfg_added = false; + seg = info->sd.domain; /* return success if MMCFG is not in use */ if (raw_pci_ext_ops && raw_pci_ext_ops != &pci_mmcfg) @@ -195,7 +197,8 @@ static int setup_mcfg_map(struct pci_root_info *info, u16 seg, u8 start, if (!(pci_probe & PCI_PROBE_MMCONF)) return check_segment(seg, dev, "MMCONFIG is disabled,"); - result = pci_mmconfig_insert(dev, seg, start, end, addr); + result = pci_mmconfig_insert(dev, seg, info->start_bus, info->end_bus, + root->mcfg_addr); if (result == 0) { /* enable MMCFG if it hasn't been enabled yet */ if (raw_pci_ext_ops == NULL) @@ -208,134 +211,55 @@ static int setup_mcfg_map(struct pci_root_info *info, u16 seg, u8 start, return 0; } -static void teardown_mcfg_map(struct pci_root_info *info) +static void teardown_mcfg_map(struct acpi_pci_root_info *ci) { + struct pci_root_info *info; + + info = container_of(ci, struct pci_root_info, common); if (info->mcfg_added) { - pci_mmconfig_delete(info->segment, info->start_bus, - info->end_bus); + pci_mmconfig_delete(info->sd.domain, + info->start_bus, info->end_bus); info->mcfg_added = false; } } #else -static int setup_mcfg_map(struct pci_root_info *info, - u16 seg, u8 start, u8 end, - phys_addr_t addr) +static int setup_mcfg_map(struct acpi_pci_root_info *ci) { return 0; } -static void teardown_mcfg_map(struct pci_root_info *info) + +static void teardown_mcfg_map(struct acpi_pci_root_info *ci) { } #endif -static void validate_resources(struct device *dev, struct list_head *crs_res, - unsigned long type) +static int pci_acpi_root_get_node(struct acpi_pci_root *root) { - LIST_HEAD(list); - struct resource *res1, *res2, *root = NULL; - struct resource_entry *tmp, *entry, *entry2; - - BUG_ON((type & (IORESOURCE_MEM | IORESOURCE_IO)) == 0); - root = (type & IORESOURCE_MEM) ? &iomem_resource : &ioport_resource; - - list_splice_init(crs_res, &list); - resource_list_for_each_entry_safe(entry, tmp, &list) { - bool free = false; - resource_size_t end; - - res1 = entry->res; - if (!(res1->flags & type)) - goto next; - - /* Exclude non-addressable range or non-addressable portion */ - end = min(res1->end, root->end); - if (end <= res1->start) { - dev_info(dev, "host bridge window %pR (ignored, not CPU addressable)\n", - res1); - free = true; - goto next; - } else if (res1->end != end) { - dev_info(dev, "host bridge window %pR ([%#llx-%#llx] ignored, not CPU addressable)\n", - res1, (unsigned long long)end + 1, - (unsigned long long)res1->end); - res1->end = end; - } - - resource_list_for_each_entry(entry2, crs_res) { - res2 = entry2->res; - if (!(res2->flags & type)) - continue; - - /* - * I don't like throwing away windows because then - * our resources no longer match the ACPI _CRS, but - * the kernel resource tree doesn't allow overlaps. - */ - if (resource_overlaps(res1, res2)) { - res2->start = min(res1->start, res2->start); - res2->end = max(res1->end, res2->end); - dev_info(dev, "host bridge window expanded to %pR; %pR ignored\n", - res2, res1); - free = true; - goto next; - } - } + int busnum = root->secondary.start; + struct acpi_device *device = root->device; + int node = acpi_get_node(device->handle); -next: - resource_list_del(entry); - if (free) - resource_list_free_entry(entry); - else - resource_list_add_tail(entry, crs_res); + if (node == NUMA_NO_NODE) { + node = x86_pci_root_bus_node(busnum); + if (node != 0 && node != NUMA_NO_NODE) + dev_info(&device->dev, FW_BUG "no _PXM; falling back to node %d from hardware (may be inconsistent with ACPI node numbers)\n", + node); } + if (node != NUMA_NO_NODE && !node_online(node)) + node = NUMA_NO_NODE; + + return node; } -static void add_resources(struct pci_root_info *info, - struct list_head *resources, - struct list_head *crs_res) +static int pci_acpi_root_init_info(struct acpi_pci_root_info *ci) { - struct resource_entry *entry, *tmp; - struct resource *res, *conflict, *root = NULL; - - validate_resources(&info->bridge->dev, crs_res, IORESOURCE_MEM); - validate_resources(&info->bridge->dev, crs_res, IORESOURCE_IO); - - resource_list_for_each_entry_safe(entry, tmp, crs_res) { - res = entry->res; - if (res->flags & IORESOURCE_MEM) - root = &iomem_resource; - else if (res->flags & IORESOURCE_IO) - root = &ioport_resource; - else - BUG_ON(res); - - conflict = insert_resource_conflict(root, res); - if (conflict) { - dev_info(&info->bridge->dev, - "ignoring host bridge window %pR (conflicts with %s %pR)\n", - res, conflict->name, conflict); - resource_list_destroy_entry(entry); - } - } - - list_splice_tail(crs_res, resources); + return setup_mcfg_map(ci); } -static void release_pci_root_info(struct pci_host_bridge *bridge) +static void pci_acpi_root_release_info(struct acpi_pci_root_info *ci) { - struct resource *res; - struct resource_entry *entry; - struct pci_root_info *info = bridge->release_data; - - resource_list_for_each_entry(entry, &bridge->windows) { - res = entry->res; - if (res->parent && - (res->flags & (IORESOURCE_MEM | IORESOURCE_IO))) - release_resource(res); - } - - teardown_mcfg_map(info); - kfree(info); + teardown_mcfg_map(ci); + kfree(container_of(ci, struct pci_root_info, common)); } /* @@ -358,50 +282,47 @@ static bool resource_is_pcicfg_ioport(struct resource *res) res->start == 0xCF8 && res->end == 0xCFF; } -static void probe_pci_root_info(struct pci_root_info *info, - struct acpi_device *device, - int busnum, int domain, - struct list_head *list) +static int pci_acpi_root_prepare_resources(struct acpi_pci_root_info *ci) { - int ret; + struct acpi_device *device = ci->bridge; + int busnum = ci->root->secondary.start; struct resource_entry *entry, *tmp; + int status; - sprintf(info->name, "PCI Bus %04x:%02x", domain, busnum); - info->bridge = device; - ret = acpi_dev_get_resources(device, list, - acpi_dev_filter_resource_type_cb, - (void *)(IORESOURCE_IO | IORESOURCE_MEM)); - if (ret < 0) - dev_warn(&device->dev, - "failed to parse _CRS method, error code %d\n", ret); - else if (ret == 0) - dev_dbg(&device->dev, - "no IO and memory resources present in _CRS\n"); - else - resource_list_for_each_entry_safe(entry, tmp, list) { - if ((entry->res->flags & IORESOURCE_DISABLED) || - resource_is_pcicfg_ioport(entry->res)) + status = acpi_pci_probe_root_resources(ci); + if (pci_use_crs) { + resource_list_for_each_entry_safe(entry, tmp, &ci->resources) + if (resource_is_pcicfg_ioport(entry->res)) resource_list_destroy_entry(entry); - else - entry->res->name = info->name; - } + return status; + } + + resource_list_for_each_entry_safe(entry, tmp, &ci->resources) { + dev_printk(KERN_DEBUG, &device->dev, + "host bridge window %pR (ignored)\n", entry->res); + resource_list_destroy_entry(entry); + } + x86_pci_root_bus_resources(busnum, &ci->resources); + + return 0; } +static struct acpi_pci_root_ops acpi_pci_root_ops = { + .pci_ops = &pci_root_ops, + .init_info = pci_acpi_root_init_info, + .release_info = pci_acpi_root_release_info, + .prepare_resources = pci_acpi_root_prepare_resources, +}; + struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) { - struct acpi_device *device = root->device; - struct pci_root_info *info; int domain = root->segment; int busnum = root->secondary.start; - struct resource_entry *res_entry; - LIST_HEAD(crs_res); - LIST_HEAD(resources); + int node = pci_acpi_root_get_node(root); struct pci_bus *bus; - struct pci_sysdata *sd; - int node; if (pci_ignore_seg) - domain = 0; + root->segment = domain = 0; if (domain && !pci_domains_supported) { printk(KERN_WARNING "pci_bus %04x:%02x: " @@ -410,71 +331,33 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) return NULL; } - node = acpi_get_node(device->handle); - if (node == NUMA_NO_NODE) { - node = x86_pci_root_bus_node(busnum); - if (node != 0 && node != NUMA_NO_NODE) - dev_info(&device->dev, FW_BUG "no _PXM; falling back to node %d from hardware (may be inconsistent with ACPI node numbers)\n", - node); - } - - if (node != NUMA_NO_NODE && !node_online(node)) - node = NUMA_NO_NODE; - - info = kzalloc_node(sizeof(*info), GFP_KERNEL, node); - if (!info) { - printk(KERN_WARNING "pci_bus %04x:%02x: " - "ignored (out of memory)\n", domain, busnum); - return NULL; - } - - sd = &info->sd; - sd->domain = domain; - sd->node = node; - sd->companion = device; - bus = pci_find_bus(domain, busnum); if (bus) { /* * If the desired bus has been scanned already, replace * its bus->sysdata. */ - memcpy(bus->sysdata, sd, sizeof(*sd)); - kfree(info); - } else { - /* insert busn res at first */ - pci_add_resource(&resources, &root->secondary); + struct pci_sysdata sd = { + .domain = domain, + .node = node, + .companion = root->device + }; - /* - * _CRS with no apertures is normal, so only fall back to - * defaults or native bridge info if we're ignoring _CRS. - */ - probe_pci_root_info(info, device, busnum, domain, &crs_res); - if (pci_use_crs) { - add_resources(info, &resources, &crs_res); - } else { - resource_list_for_each_entry(res_entry, &crs_res) - dev_printk(KERN_DEBUG, &device->dev, - "host bridge window %pR (ignored)\n", - res_entry->res); - resource_list_free(&crs_res); - x86_pci_root_bus_resources(busnum, &resources); - } - - if (!setup_mcfg_map(info, domain, (u8)root->secondary.start, - (u8)root->secondary.end, root->mcfg_addr)) - bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, - sd, &resources); - - if (bus) { - pci_scan_child_bus(bus); - pci_set_host_bridge_release( - to_pci_host_bridge(bus->bridge), - release_pci_root_info, info); - } else { - resource_list_free(&resources); - teardown_mcfg_map(info); - kfree(info); + memcpy(bus->sysdata, &sd, sizeof(sd)); + } else { + struct pci_root_info *info; + + info = kzalloc_node(sizeof(*info), GFP_KERNEL, node); + if (!info) + dev_err(&root->device->dev, + "pci_bus %04x:%02x: ignored (out of memory)\n", + domain, busnum); + else { + info->sd.domain = domain; + info->sd.node = node; + info->sd.companion = root->device; + bus = acpi_pci_root_create(root, &acpi_pci_root_ops, + &info->common, &info->sd); } } @@ -487,9 +370,6 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root) pcie_bus_configure_settings(child); } - if (bus && node != NUMA_NO_NODE) - dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node); - return bus; } diff --git a/arch/xtensa/kernel/time.c b/arch/xtensa/kernel/time.c index b97767dbc7c8..b9ad9feadc2d 100644 --- a/arch/xtensa/kernel/time.c +++ b/arch/xtensa/kernel/time.c @@ -148,7 +148,7 @@ void __init time_init(void) local_timer_setup(0); setup_irq(this_cpu_ptr(&ccount_timer)->evt.irq, &timer_irqaction); sched_clock_register(ccount_sched_clock_read, 32, ccount_freq); - clocksource_of_init(); + clocksource_probe(); } /* diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 5d1015c26ff4..25dbb76c02cc 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -57,6 +57,15 @@ config ACPI_SYSTEM_POWER_STATES_SUPPORT config ACPI_CCA_REQUIRED bool +config ACPI_DEBUGGER + bool "In-kernel debugger (EXPERIMENTAL)" + select ACPI_DEBUG + help + Enable in-kernel debugging facilities: statistics, internal + object dump, single step control method execution. + This is still under development, currently enabling this only + results in the compilation of the ACPICA debugger files. + config ACPI_SLEEP bool depends on SUSPEND || HIBERNATION @@ -197,11 +206,25 @@ config ACPI_PROCESSOR_IDLE bool select CPU_IDLE +config ACPI_CPPC_LIB + bool + depends on ACPI_PROCESSOR + depends on !ACPI_CPU_FREQ_PSS + select MAILBOX + select PCC + help + If this option is enabled, this file implements common functionality + to parse CPPC tables as described in the ACPI 5.1+ spec. The + routines implemented are meant to be used by other + drivers to control CPU performance using CPPC semantics. + If your platform does not support CPPC in firmware, + leave this option disabled. + config ACPI_PROCESSOR tristate "Processor" - depends on X86 || IA64 - select ACPI_PROCESSOR_IDLE - select ACPI_CPU_FREQ_PSS + depends on X86 || IA64 || ARM64 + select ACPI_PROCESSOR_IDLE if X86 || IA64 + select ACPI_CPU_FREQ_PSS if X86 || IA64 default y help This driver adds support for the ACPI Processor package. It is required diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index b5e7cd8a9c71..675eaf337178 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -78,6 +78,7 @@ obj-$(CONFIG_ACPI_HED) += hed.o obj-$(CONFIG_ACPI_EC_DEBUGFS) += ec_sys.o obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o obj-$(CONFIG_ACPI_BGRT) += bgrt.o +obj-$(CONFIG_ACPI_CPPC_LIB) += cppc_acpi.o # processor has its own "processor." module_param namespace processor-y := processor_driver.o diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index f51bd0d0bc17..f9e0d09f7c66 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -664,7 +664,7 @@ static struct dev_pm_domain acpi_lpss_pm_domain = { #ifdef CONFIG_PM #ifdef CONFIG_PM_SLEEP .prepare = acpi_subsys_prepare, - .complete = acpi_subsys_complete, + .complete = pm_complete_with_resume_check, .suspend = acpi_subsys_suspend, .suspend_late = acpi_lpss_suspend_late, .resume_early = acpi_lpss_resume_early, diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index ae307ff36acb..8ea8211b2d58 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -148,8 +148,6 @@ static int power_saving_thread(void *data) while (!kthread_should_stop()) { unsigned long expire_time; - try_to_freeze(); - /* round robin to cpus */ expire_time = last_jiffies + round_robin_time * HZ; if (time_before(expire_time, jiffies)) { diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c index c58940b231d6..48fc3ad13a4b 100644 --- a/drivers/acpi/acpi_pnp.c +++ b/drivers/acpi/acpi_pnp.c @@ -316,7 +316,7 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = { {""}, }; -static bool matching_id(char *idstr, char *list_id) +static bool matching_id(const char *idstr, const char *list_id) { int i; @@ -333,7 +333,7 @@ static bool matching_id(char *idstr, char *list_id) return true; } -static bool acpi_pnp_match(char *idstr, const struct acpi_device_id **matchid) +static bool acpi_pnp_match(const char *idstr, const struct acpi_device_id **matchid) { const struct acpi_device_id *devid; diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 985b8a83184e..6979186dbd4b 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -164,6 +164,24 @@ static int acpi_processor_errata(void) -------------------------------------------------------------------------- */ #ifdef CONFIG_ACPI_HOTPLUG_CPU +int __weak acpi_map_cpu(acpi_handle handle, + phys_cpuid_t physid, int *pcpu) +{ + return -ENODEV; +} + +int __weak acpi_unmap_cpu(int cpu) +{ + return -ENODEV; +} + +int __weak arch_register_cpu(int cpu) +{ + return -ENODEV; +} + +void __weak arch_unregister_cpu(int cpu) {} + static int acpi_processor_hotadd_init(struct acpi_processor *pr) { unsigned long long sta; diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index fedcc16b56cc..885936f79542 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -123,7 +123,6 @@ acpi-y += \ rsaddr.o \ rscalc.o \ rscreate.o \ - rsdump.o \ rsdumpinfo.o \ rsinfo.o \ rsio.o \ @@ -178,7 +177,24 @@ acpi-y += \ utxferror.o \ utxfmutex.o +acpi-$(CONFIG_ACPI_DEBUGGER) += \ + dbcmds.o \ + dbconvert.o \ + dbdisply.o \ + dbexec.o \ + dbhistry.o \ + dbinput.o \ + dbmethod.o \ + dbnames.o \ + dbobject.o \ + dbstats.o \ + dbutils.o \ + dbxface.o \ + rsdump.o \ + acpi-$(ACPI_FUTURE_USAGE) += \ + dbfileio.o \ + dbtest.o \ utcache.o \ utfileio.o \ utprint.o \ diff --git a/drivers/acpi/acpica/acapps.h b/drivers/acpi/acpica/acapps.h index e9f0833e818d..e4cc48fbf4ee 100644 --- a/drivers/acpi/acpica/acapps.h +++ b/drivers/acpi/acpica/acapps.h @@ -88,7 +88,7 @@ acpi_os_printf (" %-18s%s\n", name, description); #define FILE_SUFFIX_DISASSEMBLY "dsl" -#define ACPI_TABLE_FILE_SUFFIX ".dat" +#define FILE_SUFFIX_BINARY_TABLE ".dat" /* Needs the dot */ /* * getopt diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index eb2e926d8218..c928ba494c40 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -44,6 +44,12 @@ #ifndef __ACDEBUG_H__ #define __ACDEBUG_H__ +/* The debugger is used in conjunction with the disassembler most of time */ + +#ifdef ACPI_DISASSEMBLER +#include "acdisasm.h" +#endif + #define ACPI_DEBUG_BUFFER_SIZE 0x4000 /* 16K buffer for return objects */ struct acpi_db_command_info { diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 4dde37c3d8fc..faa97604d878 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -325,9 +325,9 @@ ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list); #ifdef ACPI_DEBUGGER -ACPI_INIT_GLOBAL(u8, acpi_gbl_db_terminate_threads, FALSE); ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE); ACPI_INIT_GLOBAL(u8, acpi_gbl_method_executing, FALSE); +ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID); ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods); ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support); @@ -337,6 +337,8 @@ ACPI_GLOBAL(char *, acpi_gbl_db_filename); ACPI_GLOBAL(u32, acpi_gbl_db_debug_level); ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level); ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node); +ACPI_GLOBAL(u8, acpi_gbl_db_terminate_loop); +ACPI_GLOBAL(u8, acpi_gbl_db_threads_terminated); ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]); ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]); @@ -358,6 +360,9 @@ ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc); ACPI_GLOBAL(u32, acpi_gbl_num_nodes); ACPI_GLOBAL(u32, acpi_gbl_num_objects); +ACPI_GLOBAL(acpi_mutex, acpi_gbl_db_command_ready); +ACPI_GLOBAL(acpi_mutex, acpi_gbl_db_command_complete); + #endif /* ACPI_DEBUGGER */ /***************************************************************************** diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index e820ed8f173f..e9e936e78154 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -397,12 +397,10 @@ void acpi_ex_dump_operands(union acpi_operand_object **operands, const char *opcode_name, u32 num_opcodes); -#ifdef ACPI_FUTURE_USAGE void acpi_ex_dump_object_descriptor(union acpi_operand_object *object, u32 flags); void acpi_ex_dump_namespace_node(struct acpi_namespace_node *node, u32 flags); -#endif /* ACPI_FUTURE_USAGE */ /* * exnames - AML namestring support diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 6f708267ad8c..e1dd784d8515 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -83,10 +83,8 @@ union acpi_parse_object; #define ACPI_MTX_EVENTS 3 /* Data for ACPI events */ #define ACPI_MTX_CACHES 4 /* Internal caches, general purposes */ #define ACPI_MTX_MEMORY 5 /* Debug memory tracking lists */ -#define ACPI_MTX_DEBUG_CMD_COMPLETE 6 /* AML debugger */ -#define ACPI_MTX_DEBUG_CMD_READY 7 /* AML debugger */ -#define ACPI_MAX_MUTEX 7 +#define ACPI_MAX_MUTEX 5 #define ACPI_NUM_MUTEX ACPI_MAX_MUTEX+1 /* Lock structure for reader/writer interfaces */ @@ -111,6 +109,14 @@ struct acpi_rw_lock { #define ACPI_MUTEX_NOT_ACQUIRED (acpi_thread_id) 0 +/* This Thread ID means an invalid thread ID */ + +#ifdef ACPI_OS_INVALID_THREAD_ID +#define ACPI_INVALID_THREAD_ID ACPI_OS_INVALID_THREAD_ID +#else +#define ACPI_INVALID_THREAD_ID ((acpi_thread_id) 0xFFFFFFFF) +#endif + /* Table for the global mutexes */ struct acpi_mutex_info { @@ -287,13 +293,17 @@ acpi_status(*acpi_internal_method) (struct acpi_walk_state * walk_state); #define ACPI_BTYPE_BUFFER_FIELD 0x00002000 #define ACPI_BTYPE_DDB_HANDLE 0x00004000 #define ACPI_BTYPE_DEBUG_OBJECT 0x00008000 -#define ACPI_BTYPE_REFERENCE 0x00010000 +#define ACPI_BTYPE_REFERENCE_OBJECT 0x00010000 /* From Index(), ref_of(), etc (type6_opcodes) */ #define ACPI_BTYPE_RESOURCE 0x00020000 +#define ACPI_BTYPE_NAMED_REFERENCE 0x00040000 /* Generic unresolved Name or Namepath */ #define ACPI_BTYPE_COMPUTE_DATA (ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING | ACPI_BTYPE_BUFFER) #define ACPI_BTYPE_DATA (ACPI_BTYPE_COMPUTE_DATA | ACPI_BTYPE_PACKAGE) -#define ACPI_BTYPE_DATA_REFERENCE (ACPI_BTYPE_DATA | ACPI_BTYPE_REFERENCE | ACPI_BTYPE_DDB_HANDLE) + + /* Used by Copy, de_ref_of, Store, Printf, Fprintf */ + +#define ACPI_BTYPE_DATA_REFERENCE (ACPI_BTYPE_DATA | ACPI_BTYPE_REFERENCE_OBJECT | ACPI_BTYPE_DDB_HANDLE) #define ACPI_BTYPE_DEVICE_OBJECTS (ACPI_BTYPE_DEVICE | ACPI_BTYPE_THERMAL | ACPI_BTYPE_PROCESSOR) #define ACPI_BTYPE_OBJECTS_AND_REFS 0x0001FFFF /* ARG or LOCAL */ #define ACPI_BTYPE_ALL_OBJECTS 0x0000FFFF @@ -848,7 +858,7 @@ struct acpi_parse_state { #define ACPI_PARSEOP_PARAMLIST 0x02 #define ACPI_PARSEOP_EMPTY_TERMLIST 0x04 #define ACPI_PARSEOP_PREDEF_CHECKED 0x08 -#define ACPI_PARSEOP_SPECIAL 0x10 +#define ACPI_PARSEOP_CLOSING_PAREN 0x10 #define ACPI_PARSEOP_COMPOUND 0x20 #define ACPI_PARSEOP_ASSIGNMENT 0x40 diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index ea0d9076d408..5d261c942a0d 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -193,9 +193,7 @@ acpi_ns_convert_to_resource(union acpi_operand_object *original_object, /* * nsdump - Namespace dump/print utilities */ -#ifdef ACPI_FUTURE_USAGE void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth); -#endif /* ACPI_FUTURE_USAGE */ void acpi_ns_dump_entry(acpi_handle handle, u32 debug_level); @@ -208,7 +206,6 @@ acpi_status acpi_ns_dump_one_object(acpi_handle obj_handle, u32 level, void *context, void **return_value); -#ifdef ACPI_FUTURE_USAGE void acpi_ns_dump_objects(acpi_object_type type, u8 display_type, @@ -220,7 +217,6 @@ acpi_ns_dump_object_paths(acpi_object_type type, u8 display_type, u32 max_depth, acpi_owner_id owner_id, acpi_handle start_handle); -#endif /* ACPI_FUTURE_USAGE */ /* * nseval - Namespace evaluation functions diff --git a/drivers/acpi/acpica/acopcode.h b/drivers/acpi/acpica/acopcode.h index fd85ad05a24a..f9acf92fa0bc 100644 --- a/drivers/acpi/acpica/acopcode.h +++ b/drivers/acpi/acpica/acopcode.h @@ -211,7 +211,7 @@ #define ARGI_ARG4 ARG_NONE #define ARGI_ARG5 ARG_NONE #define ARGI_ARG6 ARG_NONE -#define ARGI_BANK_FIELD_OP ARGI_INVALID_OPCODE +#define ARGI_BANK_FIELD_OP ARGI_LIST1 (ARGI_INTEGER) #define ARGI_BIT_AND_OP ARGI_LIST3 (ARGI_INTEGER, ARGI_INTEGER, ARGI_TARGETREF) #define ARGI_BIT_NAND_OP ARGI_LIST3 (ARGI_INTEGER, ARGI_INTEGER, ARGI_TARGETREF) #define ARGI_BIT_NOR_OP ARGI_LIST3 (ARGI_INTEGER, ARGI_INTEGER, ARGI_TARGETREF) @@ -307,7 +307,7 @@ #define ARGI_SLEEP_OP ARGI_LIST1 (ARGI_INTEGER) #define ARGI_STALL_OP ARGI_LIST1 (ARGI_INTEGER) #define ARGI_STATICSTRING_OP ARGI_INVALID_OPCODE -#define ARGI_STORE_OP ARGI_LIST2 (ARGI_DATAREFOBJ, ARGI_TARGETREF) +#define ARGI_STORE_OP ARGI_LIST2 (ARGI_DATAREFOBJ, ARGI_STORE_TARGET) #define ARGI_STRING_OP ARGI_INVALID_OPCODE #define ARGI_SUBTRACT_OP ARGI_LIST3 (ARGI_INTEGER, ARGI_INTEGER, ARGI_TARGETREF) #define ARGI_THERMAL_ZONE_OP ARGI_INVALID_OPCODE diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index 6021ccfb0b1c..8fc8c7cea879 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -194,10 +194,8 @@ union acpi_parse_object *acpi_ps_find(union acpi_parse_object *scope, union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn); -#ifdef ACPI_FUTURE_USAGE union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin, union acpi_parse_object *op); -#endif /* ACPI_FUTURE_USAGE */ /* * pswalk - parse tree walk routines @@ -235,9 +233,7 @@ void acpi_ps_free_op(union acpi_parse_object *op); u8 acpi_ps_is_leading_char(u32 c); -#ifdef ACPI_FUTURE_USAGE u32 acpi_ps_get_name(union acpi_parse_object *op); -#endif /* ACPI_FUTURE_USAGE */ void acpi_ps_set_name(union acpi_parse_object *op, u32 name); diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index fb2aa5066f3f..8b8fef6cc32d 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -635,9 +635,7 @@ void acpi_ut_free_and_track(void *address, u32 component, const char *module, u32 line); -#ifdef ACPI_FUTURE_USAGE void acpi_ut_dump_allocation_info(void); -#endif /* ACPI_FUTURE_USAGE */ void acpi_ut_dump_allocations(u32 component, const char *module); diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h index be9fd009cb28..883f20cfa698 100644 --- a/drivers/acpi/acpica/amlcode.h +++ b/drivers/acpi/acpica/amlcode.h @@ -277,14 +277,15 @@ #define ARGI_TARGETREF 0x0F /* Target, subject to implicit conversion */ #define ARGI_FIXED_TARGET 0x10 /* Target, no implicit conversion */ #define ARGI_SIMPLE_TARGET 0x11 /* Name, Local, Arg -- no implicit conversion */ +#define ARGI_STORE_TARGET 0x12 /* Target for store is TARGETREF + package objects */ /* Multiple/complex types */ -#define ARGI_DATAOBJECT 0x12 /* Buffer, String, package or reference to a node - Used only by size_of operator */ -#define ARGI_COMPLEXOBJ 0x13 /* Buffer, String, or package (Used by INDEX op only) */ -#define ARGI_REF_OR_STRING 0x14 /* Reference or String (Used by DEREFOF op only) */ -#define ARGI_REGION_OR_BUFFER 0x15 /* Used by LOAD op only */ -#define ARGI_DATAREFOBJ 0x16 +#define ARGI_DATAOBJECT 0x13 /* Buffer, String, package or reference to a node - Used only by size_of operator */ +#define ARGI_COMPLEXOBJ 0x14 /* Buffer, String, or package (Used by INDEX op only) */ +#define ARGI_REF_OR_STRING 0x15 /* Reference or String (Used by DEREFOF op only) */ +#define ARGI_REGION_OR_BUFFER 0x16 /* Used by LOAD op only */ +#define ARGI_DATAREFOBJ 0x17 /* Note: types above can expand to 0x1F maximum */ diff --git a/drivers/acpi/acpica/dbcmds.c b/drivers/acpi/acpica/dbcmds.c new file mode 100644 index 000000000000..30414b3d7fdd --- /dev/null +++ b/drivers/acpi/acpica/dbcmds.c @@ -0,0 +1,1187 @@ +/******************************************************************************* + * + * Module Name: dbcmds - Miscellaneous debug commands and output routines + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acevents.h" +#include "acdebug.h" +#include "acnamesp.h" +#include "acresrc.h" +#include "actables.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbcmds") + +/* Local prototypes */ +static void +acpi_dm_compare_aml_resources(u8 *aml1_buffer, + acpi_rsdesc_size aml1_buffer_length, + u8 *aml2_buffer, + acpi_rsdesc_size aml2_buffer_length); + +static acpi_status +acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name); + +static acpi_status +acpi_db_resource_callback(struct acpi_resource *resource, void *context); + +static acpi_status +acpi_db_device_resources(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +static void acpi_db_do_one_sleep_state(u8 sleep_state); + +static char *acpi_db_trace_method_name = NULL; + +/******************************************************************************* + * + * FUNCTION: acpi_db_convert_to_node + * + * PARAMETERS: in_string - String to convert + * + * RETURN: Pointer to a NS node + * + * DESCRIPTION: Convert a string to a valid NS pointer. Handles numeric or + * alphanumeric strings. + * + ******************************************************************************/ + +struct acpi_namespace_node *acpi_db_convert_to_node(char *in_string) +{ + struct acpi_namespace_node *node; + acpi_size address; + + if ((*in_string >= 0x30) && (*in_string <= 0x39)) { + + /* Numeric argument, convert */ + + address = strtoul(in_string, NULL, 16); + node = ACPI_TO_POINTER(address); + if (!acpi_os_readable(node, sizeof(struct acpi_namespace_node))) { + acpi_os_printf("Address %p is invalid", node); + return (NULL); + } + + /* Make sure pointer is valid NS node */ + + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { + acpi_os_printf + ("Address %p is not a valid namespace node [%s]\n", + node, acpi_ut_get_descriptor_name(node)); + return (NULL); + } + } else { + /* + * Alpha argument: The parameter is a name string that must be + * resolved to a Namespace object. + */ + node = acpi_db_local_ns_lookup(in_string); + if (!node) { + acpi_os_printf + ("Could not find [%s] in namespace, defaulting to root node\n", + in_string); + node = acpi_gbl_root_node; + } + } + + return (node); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_sleep + * + * PARAMETERS: object_arg - Desired sleep state (0-5). NULL means + * invoke all possible sleep states. + * + * RETURN: Status + * + * DESCRIPTION: Simulate sleep/wake sequences + * + ******************************************************************************/ + +acpi_status acpi_db_sleep(char *object_arg) +{ + u8 sleep_state; + u32 i; + + ACPI_FUNCTION_TRACE(acpi_db_sleep); + + /* Null input (no arguments) means to invoke all sleep states */ + + if (!object_arg) { + acpi_os_printf("Invoking all possible sleep states, 0-%d\n", + ACPI_S_STATES_MAX); + + for (i = 0; i <= ACPI_S_STATES_MAX; i++) { + acpi_db_do_one_sleep_state((u8)i); + } + + return_ACPI_STATUS(AE_OK); + } + + /* Convert argument to binary and invoke the sleep state */ + + sleep_state = (u8)strtoul(object_arg, NULL, 0); + acpi_db_do_one_sleep_state(sleep_state); + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_do_one_sleep_state + * + * PARAMETERS: sleep_state - Desired sleep state (0-5) + * + * RETURN: None + * + * DESCRIPTION: Simulate a sleep/wake sequence + * + ******************************************************************************/ + +static void acpi_db_do_one_sleep_state(u8 sleep_state) +{ + acpi_status status; + u8 sleep_type_a; + u8 sleep_type_b; + + /* Validate parameter */ + + if (sleep_state > ACPI_S_STATES_MAX) { + acpi_os_printf("Sleep state %d out of range (%d max)\n", + sleep_state, ACPI_S_STATES_MAX); + return; + } + + acpi_os_printf("\n---- Invoking sleep state S%d (%s):\n", + sleep_state, acpi_gbl_sleep_state_names[sleep_state]); + + /* Get the values for the sleep type registers (for display only) */ + + status = + acpi_get_sleep_type_data(sleep_state, &sleep_type_a, &sleep_type_b); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not evaluate [%s] method, %s\n", + acpi_gbl_sleep_state_names[sleep_state], + acpi_format_exception(status)); + return; + } + + acpi_os_printf + ("Register values for sleep state S%d: Sleep-A: %.2X, Sleep-B: %.2X\n", + sleep_state, sleep_type_a, sleep_type_b); + + /* Invoke the various sleep/wake interfaces */ + + acpi_os_printf("**** Sleep: Prepare to sleep (S%d) ****\n", + sleep_state); + status = acpi_enter_sleep_state_prep(sleep_state); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + acpi_os_printf("**** Sleep: Going to sleep (S%d) ****\n", sleep_state); + status = acpi_enter_sleep_state(sleep_state); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + acpi_os_printf("**** Wake: Prepare to return from sleep (S%d) ****\n", + sleep_state); + status = acpi_leave_sleep_state_prep(sleep_state); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + acpi_os_printf("**** Wake: Return from sleep (S%d) ****\n", + sleep_state); + status = acpi_leave_sleep_state(sleep_state); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + return; + +error_exit: + ACPI_EXCEPTION((AE_INFO, status, "During invocation of sleep state S%d", + sleep_state)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_locks + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display information about internal mutexes. + * + ******************************************************************************/ + +void acpi_db_display_locks(void) +{ + u32 i; + + for (i = 0; i < ACPI_MAX_MUTEX; i++) { + acpi_os_printf("%26s : %s\n", acpi_ut_get_mutex_name(i), + acpi_gbl_mutex_info[i].thread_id == + ACPI_MUTEX_NOT_ACQUIRED ? "Locked" : "Unlocked"); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_table_info + * + * PARAMETERS: table_arg - Name of table to be displayed + * + * RETURN: None + * + * DESCRIPTION: Display information about loaded tables. Current + * implementation displays all loaded tables. + * + ******************************************************************************/ + +void acpi_db_display_table_info(char *table_arg) +{ + u32 i; + struct acpi_table_desc *table_desc; + acpi_status status; + + /* Header */ + + acpi_os_printf("Idx ID Status Type " + "TableHeader (Sig, Address, Length, Misc)\n"); + + /* Walk the entire root table list */ + + for (i = 0; i < acpi_gbl_root_table_list.current_table_count; i++) { + table_desc = &acpi_gbl_root_table_list.tables[i]; + + /* Index and Table ID */ + + acpi_os_printf("%3u %.2u ", i, table_desc->owner_id); + + /* Decode the table flags */ + + if (!(table_desc->flags & ACPI_TABLE_IS_LOADED)) { + acpi_os_printf("NotLoaded "); + } else { + acpi_os_printf(" Loaded "); + } + + switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { + case ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL: + + acpi_os_printf("External/virtual "); + break; + + case ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL: + + acpi_os_printf("Internal/physical "); + break; + + case ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL: + + acpi_os_printf("Internal/virtual "); + break; + + default: + + acpi_os_printf("INVALID TYPE "); + break; + } + + /* Make sure that the table is mapped */ + + status = acpi_tb_validate_table(table_desc); + if (ACPI_FAILURE(status)) { + return; + } + + /* Dump the table header */ + + if (table_desc->pointer) { + acpi_tb_print_table_header(table_desc->address, + table_desc->pointer); + } else { + /* If the pointer is null, the table has been unloaded */ + + ACPI_INFO((AE_INFO, "%4.4s - Table has been unloaded", + table_desc->signature.ascii)); + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_unload_acpi_table + * + * PARAMETERS: object_name - Namespace pathname for an object that + * is owned by the table to be unloaded + * + * RETURN: None + * + * DESCRIPTION: Unload an ACPI table, via any namespace node that is owned + * by the table. + * + ******************************************************************************/ + +void acpi_db_unload_acpi_table(char *object_name) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Translate name to an Named object */ + + node = acpi_db_convert_to_node(object_name); + if (!node) { + return; + } + + status = acpi_unload_parent_table(ACPI_CAST_PTR(acpi_handle, node)); + if (ACPI_SUCCESS(status)) { + acpi_os_printf("Parent of [%s] (%p) unloaded and uninstalled\n", + object_name, node); + } else { + acpi_os_printf("%s, while unloading parent table of [%s]\n", + acpi_format_exception(status), object_name); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_send_notify + * + * PARAMETERS: name - Name of ACPI object where to send notify + * value - Value of the notify to send. + * + * RETURN: None + * + * DESCRIPTION: Send an ACPI notification. The value specified is sent to the + * named object as an ACPI notify. + * + ******************************************************************************/ + +void acpi_db_send_notify(char *name, u32 value) +{ + struct acpi_namespace_node *node; + acpi_status status; + + /* Translate name to an Named object */ + + node = acpi_db_convert_to_node(name); + if (!node) { + return; + } + + /* Dispatch the notify if legal */ + + if (acpi_ev_is_notify_object(node)) { + status = acpi_ev_queue_notify_request(node, value); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not queue notify\n"); + } + } else { + acpi_os_printf("Named object [%4.4s] Type %s, " + "must be Device/Thermal/Processor type\n", + acpi_ut_get_node_name(node), + acpi_ut_get_type_name(node->type)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_interfaces + * + * PARAMETERS: action_arg - Null, "install", or "remove" + * interface_name_arg - Name for install/remove options + * + * RETURN: None + * + * DESCRIPTION: Display or modify the global _OSI interface list + * + ******************************************************************************/ + +void acpi_db_display_interfaces(char *action_arg, char *interface_name_arg) +{ + struct acpi_interface_info *next_interface; + char *sub_string; + acpi_status status; + + /* If no arguments, just display current interface list */ + + if (!action_arg) { + (void)acpi_os_acquire_mutex(acpi_gbl_osi_mutex, + ACPI_WAIT_FOREVER); + + next_interface = acpi_gbl_supported_interfaces; + while (next_interface) { + if (!(next_interface->flags & ACPI_OSI_INVALID)) { + acpi_os_printf("%s\n", next_interface->name); + } + + next_interface = next_interface->next; + } + + acpi_os_release_mutex(acpi_gbl_osi_mutex); + return; + } + + /* If action_arg exists, so must interface_name_arg */ + + if (!interface_name_arg) { + acpi_os_printf("Missing Interface Name argument\n"); + return; + } + + /* Uppercase the action for match below */ + + acpi_ut_strupr(action_arg); + + /* install - install an interface */ + + sub_string = strstr("INSTALL", action_arg); + if (sub_string) { + status = acpi_install_interface(interface_name_arg); + if (ACPI_FAILURE(status)) { + acpi_os_printf("%s, while installing \"%s\"\n", + acpi_format_exception(status), + interface_name_arg); + } + return; + } + + /* remove - remove an interface */ + + sub_string = strstr("REMOVE", action_arg); + if (sub_string) { + status = acpi_remove_interface(interface_name_arg); + if (ACPI_FAILURE(status)) { + acpi_os_printf("%s, while removing \"%s\"\n", + acpi_format_exception(status), + interface_name_arg); + } + return; + } + + /* Invalid action_arg */ + + acpi_os_printf("Invalid action argument: %s\n", action_arg); + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_template + * + * PARAMETERS: buffer_arg - Buffer name or address + * + * RETURN: None + * + * DESCRIPTION: Dump a buffer that contains a resource template + * + ******************************************************************************/ + +void acpi_db_display_template(char *buffer_arg) +{ + struct acpi_namespace_node *node; + acpi_status status; + struct acpi_buffer return_buffer; + + /* Translate buffer_arg to an Named object */ + + node = acpi_db_convert_to_node(buffer_arg); + if (!node || (node == acpi_gbl_root_node)) { + acpi_os_printf("Invalid argument: %s\n", buffer_arg); + return; + } + + /* We must have a buffer object */ + + if (node->type != ACPI_TYPE_BUFFER) { + acpi_os_printf + ("Not a Buffer object, cannot be a template: %s\n", + buffer_arg); + return; + } + + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + return_buffer.pointer = acpi_gbl_db_buffer; + + /* Attempt to convert the raw buffer to a resource list */ + + status = acpi_rs_create_resource_list(node->object, &return_buffer); + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + acpi_dbg_level |= ACPI_LV_RESOURCES; + + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("Could not convert Buffer to a resource list: %s, %s\n", + buffer_arg, acpi_format_exception(status)); + goto dump_buffer; + } + + /* Now we can dump the resource list */ + + acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource, + return_buffer.pointer)); + +dump_buffer: + acpi_os_printf("\nRaw data buffer:\n"); + acpi_ut_debug_dump_buffer((u8 *)node->object->buffer.pointer, + node->object->buffer.length, + DB_BYTE_DISPLAY, ACPI_UINT32_MAX); + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + return; +} + +/******************************************************************************* + * + * FUNCTION: acpi_dm_compare_aml_resources + * + * PARAMETERS: aml1_buffer - Contains first resource list + * aml1_buffer_length - Length of first resource list + * aml2_buffer - Contains second resource list + * aml2_buffer_length - Length of second resource list + * + * RETURN: None + * + * DESCRIPTION: Compare two AML resource lists, descriptor by descriptor (in + * order to isolate a miscompare to an individual resource) + * + ******************************************************************************/ + +static void +acpi_dm_compare_aml_resources(u8 *aml1_buffer, + acpi_rsdesc_size aml1_buffer_length, + u8 *aml2_buffer, + acpi_rsdesc_size aml2_buffer_length) +{ + u8 *aml1; + u8 *aml2; + u8 *aml1_end; + u8 *aml2_end; + acpi_rsdesc_size aml1_length; + acpi_rsdesc_size aml2_length; + acpi_rsdesc_size offset = 0; + u8 resource_type; + u32 count = 0; + u32 i; + + /* Compare overall buffer sizes (may be different due to size rounding) */ + + if (aml1_buffer_length != aml2_buffer_length) { + acpi_os_printf("**** Buffer length mismatch in converted " + "AML: Original %X, New %X ****\n", + aml1_buffer_length, aml2_buffer_length); + } + + aml1 = aml1_buffer; + aml2 = aml2_buffer; + aml1_end = aml1_buffer + aml1_buffer_length; + aml2_end = aml2_buffer + aml2_buffer_length; + + /* Walk the descriptor lists, comparing each descriptor */ + + while ((aml1 < aml1_end) && (aml2 < aml2_end)) { + + /* Get the lengths of each descriptor */ + + aml1_length = acpi_ut_get_descriptor_length(aml1); + aml2_length = acpi_ut_get_descriptor_length(aml2); + resource_type = acpi_ut_get_resource_type(aml1); + + /* Check for descriptor length match */ + + if (aml1_length != aml2_length) { + acpi_os_printf + ("**** Length mismatch in descriptor [%.2X] type %2.2X, " + "Offset %8.8X Len1 %X, Len2 %X ****\n", count, + resource_type, offset, aml1_length, aml2_length); + } + + /* Check for descriptor byte match */ + + else if (memcmp(aml1, aml2, aml1_length)) { + acpi_os_printf + ("**** Data mismatch in descriptor [%.2X] type %2.2X, " + "Offset %8.8X ****\n", count, resource_type, + offset); + + for (i = 0; i < aml1_length; i++) { + if (aml1[i] != aml2[i]) { + acpi_os_printf + ("Mismatch at byte offset %.2X: is %2.2X, " + "should be %2.2X\n", i, aml2[i], + aml1[i]); + } + } + } + + /* Exit on end_tag descriptor */ + + if (resource_type == ACPI_RESOURCE_NAME_END_TAG) { + return; + } + + /* Point to next descriptor in each buffer */ + + count++; + offset += aml1_length; + aml1 += aml1_length; + aml2 += aml2_length; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_dm_test_resource_conversion + * + * PARAMETERS: node - Parent device node + * name - resource method name (_CRS) + * + * RETURN: Status + * + * DESCRIPTION: Compare the original AML with a conversion of the AML to + * internal resource list, then back to AML. + * + ******************************************************************************/ + +static acpi_status +acpi_dm_test_resource_conversion(struct acpi_namespace_node *node, char *name) +{ + acpi_status status; + struct acpi_buffer return_buffer; + struct acpi_buffer resource_buffer; + struct acpi_buffer new_aml; + union acpi_object *original_aml; + + acpi_os_printf("Resource Conversion Comparison:\n"); + + new_aml.length = ACPI_ALLOCATE_LOCAL_BUFFER; + return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + resource_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + + /* Get the original _CRS AML resource template */ + + status = acpi_evaluate_object(node, name, NULL, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not obtain %s: %s\n", + name, acpi_format_exception(status)); + return (status); + } + + /* Get the AML resource template, converted to internal resource structs */ + + status = acpi_get_current_resources(node, &resource_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiGetCurrentResources failed: %s\n", + acpi_format_exception(status)); + goto exit1; + } + + /* Convert internal resource list to external AML resource template */ + + status = acpi_rs_create_aml_resources(&resource_buffer, &new_aml); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiRsCreateAmlResources failed: %s\n", + acpi_format_exception(status)); + goto exit2; + } + + /* Compare original AML to the newly created AML resource list */ + + original_aml = return_buffer.pointer; + + acpi_dm_compare_aml_resources(original_aml->buffer.pointer, + (acpi_rsdesc_size) original_aml->buffer. + length, new_aml.pointer, + (acpi_rsdesc_size) new_aml.length); + + /* Cleanup and exit */ + + ACPI_FREE(new_aml.pointer); +exit2: + ACPI_FREE(resource_buffer.pointer); +exit1: + ACPI_FREE(return_buffer.pointer); + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_resource_callback + * + * PARAMETERS: acpi_walk_resource_callback + * + * RETURN: Status + * + * DESCRIPTION: Simple callback to exercise acpi_walk_resources and + * acpi_walk_resource_buffer. + * + ******************************************************************************/ + +static acpi_status +acpi_db_resource_callback(struct acpi_resource *resource, void *context) +{ + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_device_resources + * + * PARAMETERS: acpi_walk_callback + * + * RETURN: Status + * + * DESCRIPTION: Display the _PRT/_CRS/_PRS resources for a device object. + * + ******************************************************************************/ + +static acpi_status +acpi_db_device_resources(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_namespace_node *node; + struct acpi_namespace_node *prt_node = NULL; + struct acpi_namespace_node *crs_node = NULL; + struct acpi_namespace_node *prs_node = NULL; + struct acpi_namespace_node *aei_node = NULL; + char *parent_path; + struct acpi_buffer return_buffer; + acpi_status status; + + node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + parent_path = acpi_ns_get_external_pathname(node); + if (!parent_path) { + return (AE_NO_MEMORY); + } + + /* Get handles to the resource methods for this device */ + + (void)acpi_get_handle(node, METHOD_NAME__PRT, + ACPI_CAST_PTR(acpi_handle, &prt_node)); + (void)acpi_get_handle(node, METHOD_NAME__CRS, + ACPI_CAST_PTR(acpi_handle, &crs_node)); + (void)acpi_get_handle(node, METHOD_NAME__PRS, + ACPI_CAST_PTR(acpi_handle, &prs_node)); + (void)acpi_get_handle(node, METHOD_NAME__AEI, + ACPI_CAST_PTR(acpi_handle, &aei_node)); + + if (!prt_node && !crs_node && !prs_node && !aei_node) { + goto cleanup; /* Nothing to do */ + } + + acpi_os_printf("\nDevice: %s\n", parent_path); + + /* Prepare for a return object of arbitrary size */ + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + /* _PRT */ + + if (prt_node) { + acpi_os_printf("Evaluating _PRT\n"); + + status = + acpi_evaluate_object(prt_node, NULL, NULL, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not evaluate _PRT: %s\n", + acpi_format_exception(status)); + goto get_crs; + } + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + status = acpi_get_irq_routing_table(node, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("GetIrqRoutingTable failed: %s\n", + acpi_format_exception(status)); + goto get_crs; + } + + acpi_rs_dump_irq_list(ACPI_CAST_PTR(u8, acpi_gbl_db_buffer)); + } + + /* _CRS */ + +get_crs: + if (crs_node) { + acpi_os_printf("Evaluating _CRS\n"); + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + status = + acpi_evaluate_object(crs_node, NULL, NULL, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not evaluate _CRS: %s\n", + acpi_format_exception(status)); + goto get_prs; + } + + /* This code exercises the acpi_walk_resources interface */ + + status = acpi_walk_resources(node, METHOD_NAME__CRS, + acpi_db_resource_callback, NULL); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiWalkResources failed: %s\n", + acpi_format_exception(status)); + goto get_prs; + } + + /* Get the _CRS resource list (test ALLOCATE buffer) */ + + return_buffer.pointer = NULL; + return_buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + + status = acpi_get_current_resources(node, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiGetCurrentResources failed: %s\n", + acpi_format_exception(status)); + goto get_prs; + } + + /* This code exercises the acpi_walk_resource_buffer interface */ + + status = acpi_walk_resource_buffer(&return_buffer, + acpi_db_resource_callback, + NULL); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiWalkResourceBuffer failed: %s\n", + acpi_format_exception(status)); + goto end_crs; + } + + /* Dump the _CRS resource list */ + + acpi_rs_dump_resource_list(ACPI_CAST_PTR(struct acpi_resource, + return_buffer. + pointer)); + + /* + * Perform comparison of original AML to newly created AML. This + * tests both the AML->Resource conversion and the Resource->AML + * conversion. + */ + (void)acpi_dm_test_resource_conversion(node, METHOD_NAME__CRS); + + /* Execute _SRS with the resource list */ + + acpi_os_printf("Evaluating _SRS\n"); + + status = acpi_set_current_resources(node, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiSetCurrentResources failed: %s\n", + acpi_format_exception(status)); + goto end_crs; + } + +end_crs: + ACPI_FREE(return_buffer.pointer); + } + + /* _PRS */ + +get_prs: + if (prs_node) { + acpi_os_printf("Evaluating _PRS\n"); + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + status = + acpi_evaluate_object(prs_node, NULL, NULL, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not evaluate _PRS: %s\n", + acpi_format_exception(status)); + goto get_aei; + } + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + status = acpi_get_possible_resources(node, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiGetPossibleResources failed: %s\n", + acpi_format_exception(status)); + goto get_aei; + } + + acpi_rs_dump_resource_list(ACPI_CAST_PTR + (struct acpi_resource, + acpi_gbl_db_buffer)); + } + + /* _AEI */ + +get_aei: + if (aei_node) { + acpi_os_printf("Evaluating _AEI\n"); + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + status = + acpi_evaluate_object(aei_node, NULL, NULL, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not evaluate _AEI: %s\n", + acpi_format_exception(status)); + goto cleanup; + } + + return_buffer.pointer = acpi_gbl_db_buffer; + return_buffer.length = ACPI_DEBUG_BUFFER_SIZE; + + status = acpi_get_event_resources(node, &return_buffer); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiGetEventResources failed: %s\n", + acpi_format_exception(status)); + goto cleanup; + } + + acpi_rs_dump_resource_list(ACPI_CAST_PTR + (struct acpi_resource, + acpi_gbl_db_buffer)); + } + +cleanup: + ACPI_FREE(parent_path); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_resources + * + * PARAMETERS: object_arg - String object name or object pointer. + * NULL or "*" means "display resources for + * all devices" + * + * RETURN: None + * + * DESCRIPTION: Display the resource objects associated with a device. + * + ******************************************************************************/ + +void acpi_db_display_resources(char *object_arg) +{ + struct acpi_namespace_node *node; + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + acpi_dbg_level |= ACPI_LV_RESOURCES; + + /* Asterisk means "display resources for all devices" */ + + if (!object_arg || (!strcmp(object_arg, "*"))) { + (void)acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + acpi_db_device_resources, NULL, NULL, + NULL); + } else { + /* Convert string to object pointer */ + + node = acpi_db_convert_to_node(object_arg); + if (node) { + if (node->type != ACPI_TYPE_DEVICE) { + acpi_os_printf + ("%4.4s: Name is not a device object (%s)\n", + node->name.ascii, + acpi_ut_get_type_name(node->type)); + } else { + (void)acpi_db_device_resources(node, 0, NULL, + NULL); + } + } + } + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); +} + +#if (!ACPI_REDUCED_HARDWARE) +/******************************************************************************* + * + * FUNCTION: acpi_db_generate_gpe + * + * PARAMETERS: gpe_arg - Raw GPE number, ascii string + * block_arg - GPE block number, ascii string + * 0 or 1 for FADT GPE blocks + * + * RETURN: None + * + * DESCRIPTION: Simulate firing of a GPE + * + ******************************************************************************/ + +void acpi_db_generate_gpe(char *gpe_arg, char *block_arg) +{ + u32 block_number = 0; + u32 gpe_number; + struct acpi_gpe_event_info *gpe_event_info; + + gpe_number = strtoul(gpe_arg, NULL, 0); + + /* + * If no block arg, or block arg == 0 or 1, use the FADT-defined + * GPE blocks. + */ + if (block_arg) { + block_number = strtoul(block_arg, NULL, 0); + if (block_number == 1) { + block_number = 0; + } + } + + gpe_event_info = + acpi_ev_get_gpe_event_info(ACPI_TO_POINTER(block_number), + gpe_number); + if (!gpe_event_info) { + acpi_os_printf("Invalid GPE\n"); + return; + } + + (void)acpi_ev_gpe_dispatch(NULL, gpe_event_info, gpe_number); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_generate_sci + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Simulate an SCI -- just call the SCI dispatch. + * + ******************************************************************************/ + +void acpi_db_generate_sci(void) +{ + acpi_ev_sci_dispatch(); +} + +#endif /* !ACPI_REDUCED_HARDWARE */ + +/******************************************************************************* + * + * FUNCTION: acpi_db_trace + * + * PARAMETERS: enable_arg - ENABLE/AML to enable tracer + * DISABLE to disable tracer + * method_arg - Method to trace + * once_arg - Whether trace once + * + * RETURN: None + * + * DESCRIPTION: Control method tracing facility + * + ******************************************************************************/ + +void acpi_db_trace(char *enable_arg, char *method_arg, char *once_arg) +{ + u32 debug_level = 0; + u32 debug_layer = 0; + u32 flags = 0; + + if (enable_arg) { + acpi_ut_strupr(enable_arg); + } + + if (once_arg) { + acpi_ut_strupr(once_arg); + } + + if (method_arg) { + if (acpi_db_trace_method_name) { + ACPI_FREE(acpi_db_trace_method_name); + acpi_db_trace_method_name = NULL; + } + + acpi_db_trace_method_name = + ACPI_ALLOCATE(strlen(method_arg) + 1); + if (!acpi_db_trace_method_name) { + acpi_os_printf("Failed to allocate method name (%s)\n", + method_arg); + return; + } + + strcpy(acpi_db_trace_method_name, method_arg); + } + + if (!strcmp(enable_arg, "ENABLE") || + !strcmp(enable_arg, "METHOD") || !strcmp(enable_arg, "OPCODE")) { + if (!strcmp(enable_arg, "ENABLE")) { + + /* Inherit current console settings */ + + debug_level = acpi_gbl_db_console_debug_level; + debug_layer = acpi_dbg_layer; + } else { + /* Restrict console output to trace points only */ + + debug_level = ACPI_LV_TRACE_POINT; + debug_layer = ACPI_EXECUTER; + } + + flags = ACPI_TRACE_ENABLED; + + if (!strcmp(enable_arg, "OPCODE")) { + flags |= ACPI_TRACE_OPCODE; + } + + if (once_arg && !strcmp(once_arg, "ONCE")) { + flags |= ACPI_TRACE_ONESHOT; + } + } + + (void)acpi_debug_trace(acpi_db_trace_method_name, + debug_level, debug_layer, flags); +} diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c new file mode 100644 index 000000000000..a71632ca8a81 --- /dev/null +++ b/drivers/acpi/acpica/dbconvert.c @@ -0,0 +1,484 @@ +/******************************************************************************* + * + * Module Name: dbconvert - debugger miscellaneous conversion routines + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbconvert") + +#define DB_DEFAULT_PKG_ELEMENTS 33 +/******************************************************************************* + * + * FUNCTION: acpi_db_hex_char_to_value + * + * PARAMETERS: hex_char - Ascii Hex digit, 0-9|a-f|A-F + * return_value - Where the converted value is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert a single hex character to a 4-bit number (0-16). + * + ******************************************************************************/ +acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value) +{ + u8 value; + + /* Digit must be ascii [0-9a-fA-F] */ + + if (!isxdigit(hex_char)) { + return (AE_BAD_HEX_CONSTANT); + } + + if (hex_char <= 0x39) { + value = (u8)(hex_char - 0x30); + } else { + value = (u8)(toupper(hex_char) - 0x37); + } + + *return_value = value; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_hex_byte_to_binary + * + * PARAMETERS: hex_byte - Double hex digit (0x00 - 0xFF) in format: + * hi_byte then lo_byte. + * return_value - Where the converted value is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert two hex characters to an 8 bit number (0 - 255). + * + ******************************************************************************/ + +static acpi_status acpi_db_hex_byte_to_binary(char *hex_byte, u8 *return_value) +{ + u8 local0; + u8 local1; + acpi_status status; + + /* High byte */ + + status = acpi_db_hex_char_to_value(hex_byte[0], &local0); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Low byte */ + + status = acpi_db_hex_char_to_value(hex_byte[1], &local1); + if (ACPI_FAILURE(status)) { + return (status); + } + + *return_value = (u8)((local0 << 4) | local1); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_convert_to_buffer + * + * PARAMETERS: string - Input string to be converted + * object - Where the buffer object is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert a string to a buffer object. String is treated a list + * of buffer elements, each separated by a space or comma. + * + ******************************************************************************/ + +static acpi_status +acpi_db_convert_to_buffer(char *string, union acpi_object *object) +{ + u32 i; + u32 j; + u32 length; + u8 *buffer; + acpi_status status; + + /* Generate the final buffer length */ + + for (i = 0, length = 0; string[i];) { + i += 2; + length++; + + while (string[i] && ((string[i] == ',') || (string[i] == ' '))) { + i++; + } + } + + buffer = ACPI_ALLOCATE(length); + if (!buffer) { + return (AE_NO_MEMORY); + } + + /* Convert the command line bytes to the buffer */ + + for (i = 0, j = 0; string[i];) { + status = acpi_db_hex_byte_to_binary(&string[i], &buffer[j]); + if (ACPI_FAILURE(status)) { + ACPI_FREE(buffer); + return (status); + } + + j++; + i += 2; + while (string[i] && ((string[i] == ',') || (string[i] == ' '))) { + i++; + } + } + + object->type = ACPI_TYPE_BUFFER; + object->buffer.pointer = buffer; + object->buffer.length = length; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_convert_to_package + * + * PARAMETERS: string - Input string to be converted + * object - Where the package object is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert a string to a package object. Handles nested packages + * via recursion with acpi_db_convert_to_object. + * + ******************************************************************************/ + +acpi_status acpi_db_convert_to_package(char *string, union acpi_object * object) +{ + char *this; + char *next; + u32 i; + acpi_object_type type; + union acpi_object *elements; + acpi_status status; + + elements = + ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS * + sizeof(union acpi_object)); + + this = string; + for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) { + this = acpi_db_get_next_token(this, &next, &type); + if (!this) { + break; + } + + /* Recursive call to convert each package element */ + + status = acpi_db_convert_to_object(type, this, &elements[i]); + if (ACPI_FAILURE(status)) { + acpi_db_delete_objects(i + 1, elements); + ACPI_FREE(elements); + return (status); + } + + this = next; + } + + object->type = ACPI_TYPE_PACKAGE; + object->package.count = i; + object->package.elements = elements; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_convert_to_object + * + * PARAMETERS: type - Object type as determined by parser + * string - Input string to be converted + * object - Where the new object is returned + * + * RETURN: Status + * + * DESCRIPTION: Convert a typed and tokenized string to an union acpi_object. Typing: + * 1) String objects were surrounded by quotes. + * 2) Buffer objects were surrounded by parentheses. + * 3) Package objects were surrounded by brackets "[]". + * 4) All standalone tokens are treated as integers. + * + ******************************************************************************/ + +acpi_status +acpi_db_convert_to_object(acpi_object_type type, + char *string, union acpi_object * object) +{ + acpi_status status = AE_OK; + + switch (type) { + case ACPI_TYPE_STRING: + + object->type = ACPI_TYPE_STRING; + object->string.pointer = string; + object->string.length = (u32)strlen(string); + break; + + case ACPI_TYPE_BUFFER: + + status = acpi_db_convert_to_buffer(string, object); + break; + + case ACPI_TYPE_PACKAGE: + + status = acpi_db_convert_to_package(string, object); + break; + + default: + + object->type = ACPI_TYPE_INTEGER; + status = acpi_ut_strtoul64(string, 16, &object->integer.value); + break; + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_encode_pld_buffer + * + * PARAMETERS: pld_info - _PLD buffer struct (Using local struct) + * + * RETURN: Encode _PLD buffer suitable for return value from _PLD + * + * DESCRIPTION: Bit-packs a _PLD buffer struct. Used to test the _PLD macros + * + ******************************************************************************/ + +u8 *acpi_db_encode_pld_buffer(struct acpi_pld_info *pld_info) +{ + u32 *buffer; + u32 dword; + + buffer = ACPI_ALLOCATE_ZEROED(ACPI_PLD_BUFFER_SIZE); + if (!buffer) { + return (NULL); + } + + /* First 32 bits */ + + dword = 0; + ACPI_PLD_SET_REVISION(&dword, pld_info->revision); + ACPI_PLD_SET_IGNORE_COLOR(&dword, pld_info->ignore_color); + ACPI_PLD_SET_RED(&dword, pld_info->red); + ACPI_PLD_SET_GREEN(&dword, pld_info->green); + ACPI_PLD_SET_BLUE(&dword, pld_info->blue); + ACPI_MOVE_32_TO_32(&buffer[0], &dword); + + /* Second 32 bits */ + + dword = 0; + ACPI_PLD_SET_WIDTH(&dword, pld_info->width); + ACPI_PLD_SET_HEIGHT(&dword, pld_info->height); + ACPI_MOVE_32_TO_32(&buffer[1], &dword); + + /* Third 32 bits */ + + dword = 0; + ACPI_PLD_SET_USER_VISIBLE(&dword, pld_info->user_visible); + ACPI_PLD_SET_DOCK(&dword, pld_info->dock); + ACPI_PLD_SET_LID(&dword, pld_info->lid); + ACPI_PLD_SET_PANEL(&dword, pld_info->panel); + ACPI_PLD_SET_VERTICAL(&dword, pld_info->vertical_position); + ACPI_PLD_SET_HORIZONTAL(&dword, pld_info->horizontal_position); + ACPI_PLD_SET_SHAPE(&dword, pld_info->shape); + ACPI_PLD_SET_ORIENTATION(&dword, pld_info->group_orientation); + ACPI_PLD_SET_TOKEN(&dword, pld_info->group_token); + ACPI_PLD_SET_POSITION(&dword, pld_info->group_position); + ACPI_PLD_SET_BAY(&dword, pld_info->bay); + ACPI_MOVE_32_TO_32(&buffer[2], &dword); + + /* Fourth 32 bits */ + + dword = 0; + ACPI_PLD_SET_EJECTABLE(&dword, pld_info->ejectable); + ACPI_PLD_SET_OSPM_EJECT(&dword, pld_info->ospm_eject_required); + ACPI_PLD_SET_CABINET(&dword, pld_info->cabinet_number); + ACPI_PLD_SET_CARD_CAGE(&dword, pld_info->card_cage_number); + ACPI_PLD_SET_REFERENCE(&dword, pld_info->reference); + ACPI_PLD_SET_ROTATION(&dword, pld_info->rotation); + ACPI_PLD_SET_ORDER(&dword, pld_info->order); + ACPI_MOVE_32_TO_32(&buffer[3], &dword); + + if (pld_info->revision >= 2) { + + /* Fifth 32 bits */ + + dword = 0; + ACPI_PLD_SET_VERT_OFFSET(&dword, pld_info->vertical_offset); + ACPI_PLD_SET_HORIZ_OFFSET(&dword, pld_info->horizontal_offset); + ACPI_MOVE_32_TO_32(&buffer[4], &dword); + } + + return (ACPI_CAST_PTR(u8, buffer)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_pld_buffer + * + * PARAMETERS: obj_desc - Object returned from _PLD method + * + * RETURN: None. + * + * DESCRIPTION: Dumps formatted contents of a _PLD return buffer. + * + ******************************************************************************/ + +#define ACPI_PLD_OUTPUT "%20s : %-6X\n" + +void acpi_db_dump_pld_buffer(union acpi_object *obj_desc) +{ + union acpi_object *buffer_desc; + struct acpi_pld_info *pld_info; + u8 *new_buffer; + acpi_status status; + + /* Object must be of type Package with at least one Buffer element */ + + if (obj_desc->type != ACPI_TYPE_PACKAGE) { + return; + } + + buffer_desc = &obj_desc->package.elements[0]; + if (buffer_desc->type != ACPI_TYPE_BUFFER) { + return; + } + + /* Convert _PLD buffer to local _PLD struct */ + + status = acpi_decode_pld_buffer(buffer_desc->buffer.pointer, + buffer_desc->buffer.length, &pld_info); + if (ACPI_FAILURE(status)) { + return; + } + + /* Encode local _PLD struct back to a _PLD buffer */ + + new_buffer = acpi_db_encode_pld_buffer(pld_info); + if (!new_buffer) { + return; + } + + /* The two bit-packed buffers should match */ + + if (memcmp(new_buffer, buffer_desc->buffer.pointer, + buffer_desc->buffer.length)) { + acpi_os_printf + ("Converted _PLD buffer does not compare. New:\n"); + + acpi_ut_dump_buffer(new_buffer, + buffer_desc->buffer.length, DB_BYTE_DISPLAY, + 0); + } + + /* First 32-bit dword */ + + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Revision", pld_info->revision); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_IgnoreColor", + pld_info->ignore_color); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Red", pld_info->red); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Green", pld_info->green); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Blue", pld_info->blue); + + /* Second 32-bit dword */ + + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Width", pld_info->width); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Height", pld_info->height); + + /* Third 32-bit dword */ + + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_UserVisible", + pld_info->user_visible); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Dock", pld_info->dock); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Lid", pld_info->lid); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Panel", pld_info->panel); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalPosition", + pld_info->vertical_position); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalPosition", + pld_info->horizontal_position); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Shape", pld_info->shape); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupOrientation", + pld_info->group_orientation); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupToken", + pld_info->group_token); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_GroupPosition", + pld_info->group_position); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Bay", pld_info->bay); + + /* Fourth 32-bit dword */ + + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Ejectable", pld_info->ejectable); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_EjectRequired", + pld_info->ospm_eject_required); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CabinetNumber", + pld_info->cabinet_number); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_CardCageNumber", + pld_info->card_cage_number); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Reference", pld_info->reference); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Rotation", pld_info->rotation); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_Order", pld_info->order); + + /* Fifth 32-bit dword */ + + if (buffer_desc->buffer.length > 16) { + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_VerticalOffset", + pld_info->vertical_offset); + acpi_os_printf(ACPI_PLD_OUTPUT, "PLD_HorizontalOffset", + pld_info->horizontal_offset); + } + + ACPI_FREE(pld_info); + ACPI_FREE(new_buffer); +} diff --git a/drivers/acpi/acpica/dbdisply.c b/drivers/acpi/acpica/dbdisply.c new file mode 100644 index 000000000000..672977ec7c7d --- /dev/null +++ b/drivers/acpi/acpica/dbdisply.c @@ -0,0 +1,1108 @@ +/******************************************************************************* + * + * Module Name: dbdisply - debug display commands + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "amlcode.h" +#include "acdispat.h" +#include "acnamesp.h" +#include "acparser.h" +#include "acinterp.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbdisply") + +/* Local prototypes */ +static void acpi_db_dump_parser_descriptor(union acpi_parse_object *op); + +static void *acpi_db_get_pointer(void *target); + +static acpi_status +acpi_db_display_non_root_handlers(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +/* + * System handler information. + * Used for Handlers command, in acpi_db_display_handlers. + */ +#define ACPI_PREDEFINED_PREFIX "%25s (%.2X) : " +#define ACPI_HANDLER_NAME_STRING "%30s : " +#define ACPI_HANDLER_PRESENT_STRING "%-9s (%p)\n" +#define ACPI_HANDLER_PRESENT_STRING2 "%-9s (%p)" +#define ACPI_HANDLER_NOT_PRESENT_STRING "%-9s\n" + +/* All predefined Address Space IDs */ + +static acpi_adr_space_type acpi_gbl_space_id_list[] = { + ACPI_ADR_SPACE_SYSTEM_MEMORY, + ACPI_ADR_SPACE_SYSTEM_IO, + ACPI_ADR_SPACE_PCI_CONFIG, + ACPI_ADR_SPACE_EC, + ACPI_ADR_SPACE_SMBUS, + ACPI_ADR_SPACE_CMOS, + ACPI_ADR_SPACE_PCI_BAR_TARGET, + ACPI_ADR_SPACE_IPMI, + ACPI_ADR_SPACE_GPIO, + ACPI_ADR_SPACE_GSBUS, + ACPI_ADR_SPACE_DATA_TABLE, + ACPI_ADR_SPACE_FIXED_HARDWARE +}; + +/* Global handler information */ + +typedef struct acpi_handler_info { + void *handler; + char *name; + +} acpi_handler_info; + +static struct acpi_handler_info acpi_gbl_handler_list[] = { + {&acpi_gbl_global_notify[0].handler, "System Notifications"}, + {&acpi_gbl_global_notify[1].handler, "Device Notifications"}, + {&acpi_gbl_table_handler, "ACPI Table Events"}, + {&acpi_gbl_exception_handler, "Control Method Exceptions"}, + {&acpi_gbl_interface_handler, "OSI Invocations"} +}; + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_pointer + * + * PARAMETERS: target - Pointer to string to be converted + * + * RETURN: Converted pointer + * + * DESCRIPTION: Convert an ascii pointer value to a real value + * + ******************************************************************************/ + +static void *acpi_db_get_pointer(void *target) +{ + void *obj_ptr; + acpi_size address; + + address = strtoul(target, NULL, 16); + obj_ptr = ACPI_TO_POINTER(address); + return (obj_ptr); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_parser_descriptor + * + * PARAMETERS: op - A parser Op descriptor + * + * RETURN: None + * + * DESCRIPTION: Display a formatted parser object + * + ******************************************************************************/ + +static void acpi_db_dump_parser_descriptor(union acpi_parse_object *op) +{ + const struct acpi_opcode_info *info; + + info = acpi_ps_get_opcode_info(op->common.aml_opcode); + + acpi_os_printf("Parser Op Descriptor:\n"); + acpi_os_printf("%20.20s : %4.4X\n", "Opcode", op->common.aml_opcode); + + ACPI_DEBUG_ONLY_MEMBERS(acpi_os_printf("%20.20s : %s\n", "Opcode Name", + info->name)); + + acpi_os_printf("%20.20s : %p\n", "Value/ArgList", op->common.value.arg); + acpi_os_printf("%20.20s : %p\n", "Parent", op->common.parent); + acpi_os_printf("%20.20s : %p\n", "NextOp", op->common.next); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_decode_and_display_object + * + * PARAMETERS: target - String with object to be displayed. Names + * and hex pointers are supported. + * output_type - Byte, Word, Dword, or Qword (B|W|D|Q) + * + * RETURN: None + * + * DESCRIPTION: Display a formatted ACPI object + * + ******************************************************************************/ + +void acpi_db_decode_and_display_object(char *target, char *output_type) +{ + void *obj_ptr; + struct acpi_namespace_node *node; + union acpi_operand_object *obj_desc; + u32 display = DB_BYTE_DISPLAY; + char buffer[80]; + struct acpi_buffer ret_buf; + acpi_status status; + u32 size; + + if (!target) { + return; + } + + /* Decode the output type */ + + if (output_type) { + acpi_ut_strupr(output_type); + if (output_type[0] == 'W') { + display = DB_WORD_DISPLAY; + } else if (output_type[0] == 'D') { + display = DB_DWORD_DISPLAY; + } else if (output_type[0] == 'Q') { + display = DB_QWORD_DISPLAY; + } + } + + ret_buf.length = sizeof(buffer); + ret_buf.pointer = buffer; + + /* Differentiate between a number and a name */ + + if ((target[0] >= 0x30) && (target[0] <= 0x39)) { + obj_ptr = acpi_db_get_pointer(target); + if (!acpi_os_readable(obj_ptr, 16)) { + acpi_os_printf + ("Address %p is invalid in this address space\n", + obj_ptr); + return; + } + + /* Decode the object type */ + + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_ptr)) { + case ACPI_DESC_TYPE_NAMED: + + /* This is a namespace Node */ + + if (!acpi_os_readable + (obj_ptr, sizeof(struct acpi_namespace_node))) { + acpi_os_printf + ("Cannot read entire Named object at address %p\n", + obj_ptr); + return; + } + + node = obj_ptr; + goto dump_node; + + case ACPI_DESC_TYPE_OPERAND: + + /* This is a ACPI OPERAND OBJECT */ + + if (!acpi_os_readable + (obj_ptr, sizeof(union acpi_operand_object))) { + acpi_os_printf + ("Cannot read entire ACPI object at address %p\n", + obj_ptr); + return; + } + + acpi_ut_debug_dump_buffer(obj_ptr, + sizeof(union + acpi_operand_object), + display, ACPI_UINT32_MAX); + acpi_ex_dump_object_descriptor(obj_ptr, 1); + break; + + case ACPI_DESC_TYPE_PARSER: + + /* This is a Parser Op object */ + + if (!acpi_os_readable + (obj_ptr, sizeof(union acpi_parse_object))) { + acpi_os_printf + ("Cannot read entire Parser object at address %p\n", + obj_ptr); + return; + } + + acpi_ut_debug_dump_buffer(obj_ptr, + sizeof(union + acpi_parse_object), + display, ACPI_UINT32_MAX); + acpi_db_dump_parser_descriptor((union acpi_parse_object + *)obj_ptr); + break; + + default: + + /* Is not a recognizeable object */ + + acpi_os_printf + ("Not a known ACPI internal object, descriptor type %2.2X\n", + ACPI_GET_DESCRIPTOR_TYPE(obj_ptr)); + + size = 16; + if (acpi_os_readable(obj_ptr, 64)) { + size = 64; + } + + /* Just dump some memory */ + + acpi_ut_debug_dump_buffer(obj_ptr, size, display, + ACPI_UINT32_MAX); + break; + } + + return; + } + + /* The parameter is a name string that must be resolved to a Named obj */ + + node = acpi_db_local_ns_lookup(target); + if (!node) { + return; + } + +dump_node: + /* Now dump the NS node */ + + status = acpi_get_name(node, ACPI_FULL_PATHNAME_NO_TRAILING, &ret_buf); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not convert name to pathname\n"); + } + + else { + acpi_os_printf("Object (%p) Pathname: %s\n", + node, (char *)ret_buf.pointer); + } + + if (!acpi_os_readable(node, sizeof(struct acpi_namespace_node))) { + acpi_os_printf("Invalid Named object at address %p\n", node); + return; + } + + acpi_ut_debug_dump_buffer((void *)node, + sizeof(struct acpi_namespace_node), display, + ACPI_UINT32_MAX); + acpi_ex_dump_namespace_node(node, 1); + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + acpi_os_printf("\nAttached Object (%p):\n", obj_desc); + if (!acpi_os_readable + (obj_desc, sizeof(union acpi_operand_object))) { + acpi_os_printf + ("Invalid internal ACPI Object at address %p\n", + obj_desc); + return; + } + + acpi_ut_debug_dump_buffer((void *)obj_desc, + sizeof(union acpi_operand_object), + display, ACPI_UINT32_MAX); + acpi_ex_dump_object_descriptor(obj_desc, 1); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_method_info + * + * PARAMETERS: start_op - Root of the control method parse tree + * + * RETURN: None + * + * DESCRIPTION: Display information about the current method + * + ******************************************************************************/ + +void acpi_db_display_method_info(union acpi_parse_object *start_op) +{ + struct acpi_walk_state *walk_state; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + union acpi_parse_object *root_op; + union acpi_parse_object *op; + const struct acpi_opcode_info *op_info; + u32 num_ops = 0; + u32 num_operands = 0; + u32 num_operators = 0; + u32 num_remaining_ops = 0; + u32 num_remaining_operands = 0; + u32 num_remaining_operators = 0; + u8 count_remaining = FALSE; + + walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); + if (!walk_state) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + obj_desc = walk_state->method_desc; + node = walk_state->method_node; + + acpi_os_printf("Currently executing control method is [%4.4s]\n", + acpi_ut_get_node_name(node)); + acpi_os_printf("%X Arguments, SyncLevel = %X\n", + (u32)obj_desc->method.param_count, + (u32)obj_desc->method.sync_level); + + root_op = start_op; + while (root_op->common.parent) { + root_op = root_op->common.parent; + } + + op = root_op; + + while (op) { + if (op == start_op) { + count_remaining = TRUE; + } + + num_ops++; + if (count_remaining) { + num_remaining_ops++; + } + + /* Decode the opcode */ + + op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); + switch (op_info->class) { + case AML_CLASS_ARGUMENT: + + if (count_remaining) { + num_remaining_operands++; + } + + num_operands++; + break; + + case AML_CLASS_UNKNOWN: + + /* Bad opcode or ASCII character */ + + continue; + + default: + + if (count_remaining) { + num_remaining_operators++; + } + + num_operators++; + break; + } + + op = acpi_ps_get_depth_next(start_op, op); + } + + acpi_os_printf + ("Method contains: %X AML Opcodes - %X Operators, %X Operands\n", + num_ops, num_operators, num_operands); + + acpi_os_printf + ("Remaining to execute: %X AML Opcodes - %X Operators, %X Operands\n", + num_remaining_ops, num_remaining_operators, + num_remaining_operands); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_locals + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display all locals for the currently running control method + * + ******************************************************************************/ + +void acpi_db_display_locals(void) +{ + struct acpi_walk_state *walk_state; + + walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); + if (!walk_state) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + acpi_db_decode_locals(walk_state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_arguments + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display all arguments for the currently running control method + * + ******************************************************************************/ + +void acpi_db_display_arguments(void) +{ + struct acpi_walk_state *walk_state; + + walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); + if (!walk_state) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + acpi_db_decode_arguments(walk_state); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_results + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display current contents of a method result stack + * + ******************************************************************************/ + +void acpi_db_display_results(void) +{ + u32 i; + struct acpi_walk_state *walk_state; + union acpi_operand_object *obj_desc; + u32 result_count = 0; + struct acpi_namespace_node *node; + union acpi_generic_state *frame; + u32 index; /* Index onto current frame */ + + walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); + if (!walk_state) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + obj_desc = walk_state->method_desc; + node = walk_state->method_node; + + if (walk_state->results) { + result_count = walk_state->result_count; + } + + acpi_os_printf("Method [%4.4s] has %X stacked result objects\n", + acpi_ut_get_node_name(node), result_count); + + /* From the top element of result stack */ + + frame = walk_state->results; + index = (result_count - 1) % ACPI_RESULTS_FRAME_OBJ_NUM; + + for (i = 0; i < result_count; i++) { + obj_desc = frame->results.obj_desc[index]; + acpi_os_printf("Result%u: ", i); + acpi_db_display_internal_object(obj_desc, walk_state); + + if (index == 0) { + frame = frame->results.next; + index = ACPI_RESULTS_FRAME_OBJ_NUM; + } + + index--; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_calling_tree + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display current calling tree of nested control methods + * + ******************************************************************************/ + +void acpi_db_display_calling_tree(void) +{ + struct acpi_walk_state *walk_state; + struct acpi_namespace_node *node; + + walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); + if (!walk_state) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + node = walk_state->method_node; + acpi_os_printf("Current Control Method Call Tree\n"); + + while (walk_state) { + node = walk_state->method_node; + acpi_os_printf(" [%4.4s]\n", acpi_ut_get_node_name(node)); + + walk_state = walk_state->next; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_object_type + * + * PARAMETERS: name - User entered NS node handle or name + * + * RETURN: None + * + * DESCRIPTION: Display type of an arbitrary NS node + * + ******************************************************************************/ + +void acpi_db_display_object_type(char *name) +{ + struct acpi_namespace_node *node; + struct acpi_device_info *info; + acpi_status status; + u32 i; + + node = acpi_db_convert_to_node(name); + if (!node) { + return; + } + + status = acpi_get_object_info(ACPI_CAST_PTR(acpi_handle, node), &info); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not get object info, %s\n", + acpi_format_exception(status)); + return; + } + + if (info->valid & ACPI_VALID_ADR) { + acpi_os_printf("ADR: %8.8X%8.8X, STA: %8.8X, Flags: %X\n", + ACPI_FORMAT_UINT64(info->address), + info->current_status, info->flags); + } + if (info->valid & ACPI_VALID_SXDS) { + acpi_os_printf("S1D-%2.2X S2D-%2.2X S3D-%2.2X S4D-%2.2X\n", + info->highest_dstates[0], + info->highest_dstates[1], + info->highest_dstates[2], + info->highest_dstates[3]); + } + if (info->valid & ACPI_VALID_SXWS) { + acpi_os_printf + ("S0W-%2.2X S1W-%2.2X S2W-%2.2X S3W-%2.2X S4W-%2.2X\n", + info->lowest_dstates[0], info->lowest_dstates[1], + info->lowest_dstates[2], info->lowest_dstates[3], + info->lowest_dstates[4]); + } + + if (info->valid & ACPI_VALID_HID) { + acpi_os_printf("HID: %s\n", info->hardware_id.string); + } + + if (info->valid & ACPI_VALID_UID) { + acpi_os_printf("UID: %s\n", info->unique_id.string); + } + + if (info->valid & ACPI_VALID_SUB) { + acpi_os_printf("SUB: %s\n", info->subsystem_id.string); + } + + if (info->valid & ACPI_VALID_CID) { + for (i = 0; i < info->compatible_id_list.count; i++) { + acpi_os_printf("CID %u: %s\n", i, + info->compatible_id_list.ids[i].string); + } + } + + ACPI_FREE(info); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_result_object + * + * PARAMETERS: obj_desc - Object to be displayed + * walk_state - Current walk state + * + * RETURN: None + * + * DESCRIPTION: Display the result of an AML opcode + * + * Note: Curently only displays the result object if we are single stepping. + * However, this output may be useful in other contexts and could be enabled + * to do so if needed. + * + ******************************************************************************/ + +void +acpi_db_display_result_object(union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + + /* Only display if single stepping */ + + if (!acpi_gbl_cm_single_step) { + return; + } + + acpi_os_printf("ResultObj: "); + acpi_db_display_internal_object(obj_desc, walk_state); + acpi_os_printf("\n"); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_argument_object + * + * PARAMETERS: obj_desc - Object to be displayed + * walk_state - Current walk state + * + * RETURN: None + * + * DESCRIPTION: Display the result of an AML opcode + * + ******************************************************************************/ + +void +acpi_db_display_argument_object(union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + + if (!acpi_gbl_cm_single_step) { + return; + } + + acpi_os_printf("ArgObj: "); + acpi_db_display_internal_object(obj_desc, walk_state); +} + +#if (!ACPI_REDUCED_HARDWARE) +/******************************************************************************* + * + * FUNCTION: acpi_db_display_gpes + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display the current GPE structures + * + ******************************************************************************/ + +void acpi_db_display_gpes(void) +{ + struct acpi_gpe_block_info *gpe_block; + struct acpi_gpe_xrupt_info *gpe_xrupt_info; + struct acpi_gpe_event_info *gpe_event_info; + struct acpi_gpe_register_info *gpe_register_info; + char *gpe_type; + struct acpi_gpe_notify_info *notify; + u32 gpe_index; + u32 block = 0; + u32 i; + u32 j; + u32 count; + char buffer[80]; + struct acpi_buffer ret_buf; + acpi_status status; + + ret_buf.length = sizeof(buffer); + ret_buf.pointer = buffer; + + block = 0; + + /* Walk the GPE lists */ + + gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; + while (gpe_xrupt_info) { + gpe_block = gpe_xrupt_info->gpe_block_list_head; + while (gpe_block) { + status = acpi_get_name(gpe_block->node, + ACPI_FULL_PATHNAME_NO_TRAILING, + &ret_buf); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("Could not convert name to pathname\n"); + } + + if (gpe_block->node == acpi_gbl_fadt_gpe_device) { + gpe_type = "FADT-defined GPE block"; + } else { + gpe_type = "GPE Block Device"; + } + + acpi_os_printf + ("\nBlock %u - Info %p DeviceNode %p [%s] - %s\n", + block, gpe_block, gpe_block->node, buffer, + gpe_type); + + acpi_os_printf(" Registers: %u (%u GPEs)\n", + gpe_block->register_count, + gpe_block->gpe_count); + + acpi_os_printf + (" GPE range: 0x%X to 0x%X on interrupt %u\n", + gpe_block->block_base_number, + gpe_block->block_base_number + + (gpe_block->gpe_count - 1), + gpe_xrupt_info->interrupt_number); + + acpi_os_printf + (" RegisterInfo: %p Status %8.8X%8.8X Enable %8.8X%8.8X\n", + gpe_block->register_info, + ACPI_FORMAT_UINT64(gpe_block->register_info-> + status_address.address), + ACPI_FORMAT_UINT64(gpe_block->register_info-> + enable_address.address)); + + acpi_os_printf(" EventInfo: %p\n", + gpe_block->event_info); + + /* Examine each GPE Register within the block */ + + for (i = 0; i < gpe_block->register_count; i++) { + gpe_register_info = + &gpe_block->register_info[i]; + + acpi_os_printf(" Reg %u: (GPE %.2X-%.2X) " + "RunEnable %2.2X WakeEnable %2.2X" + " Status %8.8X%8.8X Enable %8.8X%8.8X\n", + i, + gpe_register_info-> + base_gpe_number, + gpe_register_info-> + base_gpe_number + + (ACPI_GPE_REGISTER_WIDTH - 1), + gpe_register_info-> + enable_for_run, + gpe_register_info-> + enable_for_wake, + ACPI_FORMAT_UINT64 + (gpe_register_info-> + status_address.address), + ACPI_FORMAT_UINT64 + (gpe_register_info-> + enable_address.address)); + + /* Now look at the individual GPEs in this byte register */ + + for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + gpe_index = + (i * ACPI_GPE_REGISTER_WIDTH) + j; + gpe_event_info = + &gpe_block->event_info[gpe_index]; + + if (ACPI_GPE_DISPATCH_TYPE + (gpe_event_info->flags) == + ACPI_GPE_DISPATCH_NONE) { + + /* This GPE is not used (no method or handler), ignore it */ + + continue; + } + + acpi_os_printf + (" GPE %.2X: %p RunRefs %2.2X Flags %2.2X (", + gpe_block->block_base_number + + gpe_index, gpe_event_info, + gpe_event_info->runtime_count, + gpe_event_info->flags); + + /* Decode the flags byte */ + + if (gpe_event_info-> + flags & ACPI_GPE_LEVEL_TRIGGERED) { + acpi_os_printf("Level, "); + } else { + acpi_os_printf("Edge, "); + } + + if (gpe_event_info-> + flags & ACPI_GPE_CAN_WAKE) { + acpi_os_printf("CanWake, "); + } else { + acpi_os_printf("RunOnly, "); + } + + switch (ACPI_GPE_DISPATCH_TYPE + (gpe_event_info->flags)) { + case ACPI_GPE_DISPATCH_NONE: + + acpi_os_printf("NotUsed"); + break; + + case ACPI_GPE_DISPATCH_METHOD: + + acpi_os_printf("Method"); + break; + + case ACPI_GPE_DISPATCH_HANDLER: + + acpi_os_printf("Handler"); + break; + + case ACPI_GPE_DISPATCH_NOTIFY: + + count = 0; + notify = + gpe_event_info->dispatch. + notify_list; + while (notify) { + count++; + notify = notify->next; + } + + acpi_os_printf + ("Implicit Notify on %u devices", + count); + break; + + case ACPI_GPE_DISPATCH_RAW_HANDLER: + + acpi_os_printf("RawHandler"); + break; + + default: + + acpi_os_printf("UNKNOWN: %X", + ACPI_GPE_DISPATCH_TYPE + (gpe_event_info-> + flags)); + break; + } + + acpi_os_printf(")\n"); + } + } + + block++; + gpe_block = gpe_block->next; + } + + gpe_xrupt_info = gpe_xrupt_info->next; + } +} +#endif /* !ACPI_REDUCED_HARDWARE */ + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_handlers + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display the currently installed global handlers + * + ******************************************************************************/ + +void acpi_db_display_handlers(void) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj; + acpi_adr_space_type space_id; + u32 i; + + /* Operation region handlers */ + + acpi_os_printf("\nOperation Region Handlers at the namespace root:\n"); + + obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node); + if (obj_desc) { + for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_gbl_space_id_list); i++) { + space_id = acpi_gbl_space_id_list[i]; + handler_obj = obj_desc->device.handler; + + acpi_os_printf(ACPI_PREDEFINED_PREFIX, + acpi_ut_get_region_name((u8)space_id), + space_id); + + while (handler_obj) { + if (acpi_gbl_space_id_list[i] == + handler_obj->address_space.space_id) { + acpi_os_printf + (ACPI_HANDLER_PRESENT_STRING, + (handler_obj->address_space. + handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) + ? "Default" : "User", + handler_obj->address_space. + handler); + + goto found_handler; + } + + handler_obj = handler_obj->address_space.next; + } + + /* There is no handler for this space_id */ + + acpi_os_printf("None\n"); + +found_handler: ; + } + + /* Find all handlers for user-defined space_IDs */ + + handler_obj = obj_desc->device.handler; + while (handler_obj) { + if (handler_obj->address_space.space_id >= + ACPI_USER_REGION_BEGIN) { + acpi_os_printf(ACPI_PREDEFINED_PREFIX, + "User-defined ID", + handler_obj->address_space. + space_id); + acpi_os_printf(ACPI_HANDLER_PRESENT_STRING, + (handler_obj->address_space. + handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) + ? "Default" : "User", + handler_obj->address_space. + handler); + } + + handler_obj = handler_obj->address_space.next; + } + } +#if (!ACPI_REDUCED_HARDWARE) + + /* Fixed event handlers */ + + acpi_os_printf("\nFixed Event Handlers:\n"); + + for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { + acpi_os_printf(ACPI_PREDEFINED_PREFIX, + acpi_ut_get_event_name(i), i); + if (acpi_gbl_fixed_event_handlers[i].handler) { + acpi_os_printf(ACPI_HANDLER_PRESENT_STRING, "User", + acpi_gbl_fixed_event_handlers[i]. + handler); + } else { + acpi_os_printf(ACPI_HANDLER_NOT_PRESENT_STRING, "None"); + } + } + +#endif /* !ACPI_REDUCED_HARDWARE */ + + /* Miscellaneous global handlers */ + + acpi_os_printf("\nMiscellaneous Global Handlers:\n"); + + for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_gbl_handler_list); i++) { + acpi_os_printf(ACPI_HANDLER_NAME_STRING, + acpi_gbl_handler_list[i].name); + + if (acpi_gbl_handler_list[i].handler) { + acpi_os_printf(ACPI_HANDLER_PRESENT_STRING, "User", + acpi_gbl_handler_list[i].handler); + } else { + acpi_os_printf(ACPI_HANDLER_NOT_PRESENT_STRING, "None"); + } + } + + /* Other handlers that are installed throughout the namespace */ + + acpi_os_printf("\nOperation Region Handlers for specific devices:\n"); + + (void)acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + acpi_db_display_non_root_handlers, NULL, NULL, + NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_non_root_handlers + * + * PARAMETERS: acpi_walk_callback + * + * RETURN: Status + * + * DESCRIPTION: Display information about all handlers installed for a + * device object. + * + ******************************************************************************/ + +static acpi_status +acpi_db_display_non_root_handlers(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_namespace_node *node = + ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj; + char *pathname; + + obj_desc = acpi_ns_get_attached_object(node); + if (!obj_desc) { + return (AE_OK); + } + + pathname = acpi_ns_get_external_pathname(node); + if (!pathname) { + return (AE_OK); + } + + /* Display all handlers associated with this device */ + + handler_obj = obj_desc->device.handler; + while (handler_obj) { + acpi_os_printf(ACPI_PREDEFINED_PREFIX, + acpi_ut_get_region_name((u8)handler_obj-> + address_space.space_id), + handler_obj->address_space.space_id); + + acpi_os_printf(ACPI_HANDLER_PRESENT_STRING2, + (handler_obj->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) ? "Default" + : "User", handler_obj->address_space.handler); + + acpi_os_printf(" Device Name: %s (%p)\n", pathname, node); + + handler_obj = handler_obj->address_space.next; + } + + ACPI_FREE(pathname); + return (AE_OK); +} diff --git a/drivers/acpi/acpica/dbexec.c b/drivers/acpi/acpica/dbexec.c new file mode 100644 index 000000000000..d713e2df65b9 --- /dev/null +++ b/drivers/acpi/acpica/dbexec.c @@ -0,0 +1,764 @@ +/******************************************************************************* + * + * Module Name: dbexec - debugger control method execution + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" +#include "acnamesp.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbexec") + +static struct acpi_db_method_info acpi_gbl_db_method_info; + +/* Local prototypes */ + +static acpi_status +acpi_db_execute_method(struct acpi_db_method_info *info, + struct acpi_buffer *return_obj); + +static acpi_status acpi_db_execute_setup(struct acpi_db_method_info *info); + +static u32 acpi_db_get_outstanding_allocations(void); + +static void ACPI_SYSTEM_XFACE acpi_db_method_thread(void *context); + +static acpi_status +acpi_db_execution_walk(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +/******************************************************************************* + * + * FUNCTION: acpi_db_delete_objects + * + * PARAMETERS: count - Count of objects in the list + * objects - Array of ACPI_OBJECTs to be deleted + * + * RETURN: None + * + * DESCRIPTION: Delete a list of ACPI_OBJECTS. Handles packages and nested + * packages via recursion. + * + ******************************************************************************/ + +void acpi_db_delete_objects(u32 count, union acpi_object *objects) +{ + u32 i; + + for (i = 0; i < count; i++) { + switch (objects[i].type) { + case ACPI_TYPE_BUFFER: + + ACPI_FREE(objects[i].buffer.pointer); + break; + + case ACPI_TYPE_PACKAGE: + + /* Recursive call to delete package elements */ + + acpi_db_delete_objects(objects[i].package.count, + objects[i].package.elements); + + /* Free the elements array */ + + ACPI_FREE(objects[i].package.elements); + break; + + default: + + break; + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_execute_method + * + * PARAMETERS: info - Valid info segment + * return_obj - Where to put return object + * + * RETURN: Status + * + * DESCRIPTION: Execute a control method. + * + ******************************************************************************/ + +static acpi_status +acpi_db_execute_method(struct acpi_db_method_info *info, + struct acpi_buffer *return_obj) +{ + acpi_status status; + struct acpi_object_list param_objects; + union acpi_object params[ACPI_DEBUGGER_MAX_ARGS + 1]; + u32 i; + + ACPI_FUNCTION_TRACE(db_execute_method); + + if (acpi_gbl_db_output_to_file && !acpi_dbg_level) { + acpi_os_printf("Warning: debug output is not enabled!\n"); + } + + param_objects.count = 0; + param_objects.pointer = NULL; + + /* Pass through any command-line arguments */ + + if (info->args && info->args[0]) { + + /* Get arguments passed on the command line */ + + for (i = 0; (info->args[i] && *(info->args[i])); i++) { + + /* Convert input string (token) to an actual union acpi_object */ + + status = acpi_db_convert_to_object(info->types[i], + info->args[i], + ¶ms[i]); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While parsing method arguments")); + goto cleanup; + } + } + + param_objects.count = i; + param_objects.pointer = params; + } + + /* Prepare for a return object of arbitrary size */ + + return_obj->pointer = acpi_gbl_db_buffer; + return_obj->length = ACPI_DEBUG_BUFFER_SIZE; + + /* Do the actual method execution */ + + acpi_gbl_method_executing = TRUE; + status = acpi_evaluate_object(NULL, info->pathname, + ¶m_objects, return_obj); + + acpi_gbl_cm_single_step = FALSE; + acpi_gbl_method_executing = FALSE; + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "while executing %s from debugger", + info->pathname)); + + if (status == AE_BUFFER_OVERFLOW) { + ACPI_ERROR((AE_INFO, + "Possible overflow of internal debugger " + "buffer (size 0x%X needed 0x%X)", + ACPI_DEBUG_BUFFER_SIZE, + (u32)return_obj->length)); + } + } + +cleanup: + acpi_db_delete_objects(param_objects.count, params); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_execute_setup + * + * PARAMETERS: info - Valid method info + * + * RETURN: None + * + * DESCRIPTION: Setup info segment prior to method execution + * + ******************************************************************************/ + +static acpi_status acpi_db_execute_setup(struct acpi_db_method_info *info) +{ + acpi_status status; + + ACPI_FUNCTION_NAME(db_execute_setup); + + /* Catenate the current scope to the supplied name */ + + info->pathname[0] = 0; + if ((info->name[0] != '\\') && (info->name[0] != '/')) { + if (acpi_ut_safe_strcat(info->pathname, sizeof(info->pathname), + acpi_gbl_db_scope_buf)) { + status = AE_BUFFER_OVERFLOW; + goto error_exit; + } + } + + if (acpi_ut_safe_strcat(info->pathname, sizeof(info->pathname), + info->name)) { + status = AE_BUFFER_OVERFLOW; + goto error_exit; + } + + acpi_db_prep_namestring(info->pathname); + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + acpi_os_printf("Evaluating %s\n", info->pathname); + + if (info->flags & EX_SINGLE_STEP) { + acpi_gbl_cm_single_step = TRUE; + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + } + + else { + /* No single step, allow redirection to a file */ + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + } + + return (AE_OK); + +error_exit: + + ACPI_EXCEPTION((AE_INFO, status, "During setup for method execution")); + return (status); +} + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS +u32 acpi_db_get_cache_info(struct acpi_memory_list *cache) +{ + + return (cache->total_allocated - cache->total_freed - + cache->current_depth); +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_outstanding_allocations + * + * PARAMETERS: None + * + * RETURN: Current global allocation count minus cache entries + * + * DESCRIPTION: Determine the current number of "outstanding" allocations -- + * those allocations that have not been freed and also are not + * in one of the various object caches. + * + ******************************************************************************/ + +static u32 acpi_db_get_outstanding_allocations(void) +{ + u32 outstanding = 0; + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + + outstanding += acpi_db_get_cache_info(acpi_gbl_state_cache); + outstanding += acpi_db_get_cache_info(acpi_gbl_ps_node_cache); + outstanding += acpi_db_get_cache_info(acpi_gbl_ps_node_ext_cache); + outstanding += acpi_db_get_cache_info(acpi_gbl_operand_cache); +#endif + + return (outstanding); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_execution_walk + * + * PARAMETERS: WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Execute a control method. Name is relative to the current + * scope. + * + ******************************************************************************/ + +static acpi_status +acpi_db_execution_walk(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + struct acpi_buffer return_obj; + acpi_status status; + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc->method.param_count) { + return (AE_OK); + } + + return_obj.pointer = NULL; + return_obj.length = ACPI_ALLOCATE_BUFFER; + + acpi_ns_print_node_pathname(node, "Evaluating"); + + /* Do the actual method execution */ + + acpi_os_printf("\n"); + acpi_gbl_method_executing = TRUE; + + status = acpi_evaluate_object(node, NULL, NULL, &return_obj); + + acpi_os_printf("Evaluation of [%4.4s] returned %s\n", + acpi_ut_get_node_name(node), + acpi_format_exception(status)); + + acpi_gbl_method_executing = FALSE; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_execute + * + * PARAMETERS: name - Name of method to execute + * args - Parameters to the method + * Types - + * flags - single step/no single step + * + * RETURN: None + * + * DESCRIPTION: Execute a control method. Name is relative to the current + * scope. + * + ******************************************************************************/ + +void +acpi_db_execute(char *name, char **args, acpi_object_type * types, u32 flags) +{ + acpi_status status; + struct acpi_buffer return_obj; + char *name_string; + +#ifdef ACPI_DEBUG_OUTPUT + u32 previous_allocations; + u32 allocations; +#endif + + /* + * Allow one execution to be performed by debugger or single step + * execution will be dead locked by the interpreter mutexes. + */ + if (acpi_gbl_method_executing) { + acpi_os_printf("Only one debugger execution is allowed.\n"); + return; + } +#ifdef ACPI_DEBUG_OUTPUT + /* Memory allocation tracking */ + + previous_allocations = acpi_db_get_outstanding_allocations(); +#endif + + if (*name == '*') { + (void)acpi_walk_namespace(ACPI_TYPE_METHOD, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + acpi_db_execution_walk, NULL, NULL, + NULL); + return; + } else { + name_string = ACPI_ALLOCATE(strlen(name) + 1); + if (!name_string) { + return; + } + + memset(&acpi_gbl_db_method_info, 0, + sizeof(struct acpi_db_method_info)); + + strcpy(name_string, name); + acpi_ut_strupr(name_string); + acpi_gbl_db_method_info.name = name_string; + acpi_gbl_db_method_info.args = args; + acpi_gbl_db_method_info.types = types; + acpi_gbl_db_method_info.flags = flags; + + return_obj.pointer = NULL; + return_obj.length = ACPI_ALLOCATE_BUFFER; + + status = acpi_db_execute_setup(&acpi_gbl_db_method_info); + if (ACPI_FAILURE(status)) { + ACPI_FREE(name_string); + return; + } + + /* Get the NS node, determines existence also */ + + status = acpi_get_handle(NULL, acpi_gbl_db_method_info.pathname, + &acpi_gbl_db_method_info.method); + if (ACPI_SUCCESS(status)) { + status = + acpi_db_execute_method(&acpi_gbl_db_method_info, + &return_obj); + } + ACPI_FREE(name_string); + } + + /* + * Allow any handlers in separate threads to complete. + * (Such as Notify handlers invoked from AML executed above). + */ + acpi_os_sleep((u64)10); + +#ifdef ACPI_DEBUG_OUTPUT + + /* Memory allocation tracking */ + + allocations = + acpi_db_get_outstanding_allocations() - previous_allocations; + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + + if (allocations > 0) { + acpi_os_printf + ("0x%X Outstanding allocations after evaluation of %s\n", + allocations, acpi_gbl_db_method_info.pathname); + } +#endif + + if (ACPI_FAILURE(status)) { + acpi_os_printf("Evaluation of %s failed with status %s\n", + acpi_gbl_db_method_info.pathname, + acpi_format_exception(status)); + } else { + /* Display a return object, if any */ + + if (return_obj.length) { + acpi_os_printf("Evaluation of %s returned object %p, " + "external buffer length %X\n", + acpi_gbl_db_method_info.pathname, + return_obj.pointer, + (u32)return_obj.length); + + acpi_db_dump_external_object(return_obj.pointer, 1); + + /* Dump a _PLD buffer if present */ + + if (ACPI_COMPARE_NAME + ((ACPI_CAST_PTR + (struct acpi_namespace_node, + acpi_gbl_db_method_info.method)->name.ascii), + METHOD_NAME__PLD)) { + acpi_db_dump_pld_buffer(return_obj.pointer); + } + } else { + acpi_os_printf + ("No object was returned from evaluation of %s\n", + acpi_gbl_db_method_info.pathname); + } + } + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_method_thread + * + * PARAMETERS: context - Execution info segment + * + * RETURN: None + * + * DESCRIPTION: Debugger execute thread. Waits for a command line, then + * simply dispatches it. + * + ******************************************************************************/ + +static void ACPI_SYSTEM_XFACE acpi_db_method_thread(void *context) +{ + acpi_status status; + struct acpi_db_method_info *info = context; + struct acpi_db_method_info local_info; + u32 i; + u8 allow; + struct acpi_buffer return_obj; + + /* + * acpi_gbl_db_method_info.Arguments will be passed as method arguments. + * Prevent acpi_gbl_db_method_info from being modified by multiple threads + * concurrently. + * + * Note: The arguments we are passing are used by the ASL test suite + * (aslts). Do not change them without updating the tests. + */ + (void)acpi_os_wait_semaphore(info->info_gate, 1, ACPI_WAIT_FOREVER); + + if (info->init_args) { + acpi_db_uint32_to_hex_string(info->num_created, + info->index_of_thread_str); + acpi_db_uint32_to_hex_string((u32)acpi_os_get_thread_id(), + info->id_of_thread_str); + } + + if (info->threads && (info->num_created < info->num_threads)) { + info->threads[info->num_created++] = acpi_os_get_thread_id(); + } + + local_info = *info; + local_info.args = local_info.arguments; + local_info.arguments[0] = local_info.num_threads_str; + local_info.arguments[1] = local_info.id_of_thread_str; + local_info.arguments[2] = local_info.index_of_thread_str; + local_info.arguments[3] = NULL; + + local_info.types = local_info.arg_types; + + (void)acpi_os_signal_semaphore(info->info_gate, 1); + + for (i = 0; i < info->num_loops; i++) { + status = acpi_db_execute_method(&local_info, &return_obj); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("%s During evaluation of %s at iteration %X\n", + acpi_format_exception(status), info->pathname, i); + if (status == AE_ABORT_METHOD) { + break; + } + } +#if 0 + if ((i % 100) == 0) { + acpi_os_printf("%u loops, Thread 0x%x\n", + i, acpi_os_get_thread_id()); + } + + if (return_obj.length) { + acpi_os_printf + ("Evaluation of %s returned object %p Buflen %X\n", + info->pathname, return_obj.pointer, + (u32)return_obj.length); + acpi_db_dump_external_object(return_obj.pointer, 1); + } +#endif + } + + /* Signal our completion */ + + allow = 0; + (void)acpi_os_wait_semaphore(info->thread_complete_gate, + 1, ACPI_WAIT_FOREVER); + info->num_completed++; + + if (info->num_completed == info->num_threads) { + + /* Do signal for main thread once only */ + allow = 1; + } + + (void)acpi_os_signal_semaphore(info->thread_complete_gate, 1); + + if (allow) { + status = acpi_os_signal_semaphore(info->main_thread_gate, 1); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("Could not signal debugger thread sync semaphore, %s\n", + acpi_format_exception(status)); + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_create_execution_threads + * + * PARAMETERS: num_threads_arg - Number of threads to create + * num_loops_arg - Loop count for the thread(s) + * method_name_arg - Control method to execute + * + * RETURN: None + * + * DESCRIPTION: Create threads to execute method(s) + * + ******************************************************************************/ + +void +acpi_db_create_execution_threads(char *num_threads_arg, + char *num_loops_arg, char *method_name_arg) +{ + acpi_status status; + u32 num_threads; + u32 num_loops; + u32 i; + u32 size; + acpi_mutex main_thread_gate; + acpi_mutex thread_complete_gate; + acpi_mutex info_gate; + + /* Get the arguments */ + + num_threads = strtoul(num_threads_arg, NULL, 0); + num_loops = strtoul(num_loops_arg, NULL, 0); + + if (!num_threads || !num_loops) { + acpi_os_printf("Bad argument: Threads %X, Loops %X\n", + num_threads, num_loops); + return; + } + + /* + * Create the semaphore for synchronization of + * the created threads with the main thread. + */ + status = acpi_os_create_semaphore(1, 0, &main_thread_gate); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not create semaphore for " + "synchronization with the main thread, %s\n", + acpi_format_exception(status)); + return; + } + + /* + * Create the semaphore for synchronization + * between the created threads. + */ + status = acpi_os_create_semaphore(1, 1, &thread_complete_gate); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not create semaphore for " + "synchronization between the created threads, %s\n", + acpi_format_exception(status)); + + (void)acpi_os_delete_semaphore(main_thread_gate); + return; + } + + status = acpi_os_create_semaphore(1, 1, &info_gate); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not create semaphore for " + "synchronization of AcpiGbl_DbMethodInfo, %s\n", + acpi_format_exception(status)); + + (void)acpi_os_delete_semaphore(thread_complete_gate); + (void)acpi_os_delete_semaphore(main_thread_gate); + return; + } + + memset(&acpi_gbl_db_method_info, 0, sizeof(struct acpi_db_method_info)); + + /* Array to store IDs of threads */ + + acpi_gbl_db_method_info.num_threads = num_threads; + size = sizeof(acpi_thread_id) * acpi_gbl_db_method_info.num_threads; + + acpi_gbl_db_method_info.threads = acpi_os_allocate(size); + if (acpi_gbl_db_method_info.threads == NULL) { + acpi_os_printf("No memory for thread IDs array\n"); + (void)acpi_os_delete_semaphore(main_thread_gate); + (void)acpi_os_delete_semaphore(thread_complete_gate); + (void)acpi_os_delete_semaphore(info_gate); + return; + } + memset(acpi_gbl_db_method_info.threads, 0, size); + + /* Setup the context to be passed to each thread */ + + acpi_gbl_db_method_info.name = method_name_arg; + acpi_gbl_db_method_info.flags = 0; + acpi_gbl_db_method_info.num_loops = num_loops; + acpi_gbl_db_method_info.main_thread_gate = main_thread_gate; + acpi_gbl_db_method_info.thread_complete_gate = thread_complete_gate; + acpi_gbl_db_method_info.info_gate = info_gate; + + /* Init arguments to be passed to method */ + + acpi_gbl_db_method_info.init_args = 1; + acpi_gbl_db_method_info.args = acpi_gbl_db_method_info.arguments; + acpi_gbl_db_method_info.arguments[0] = + acpi_gbl_db_method_info.num_threads_str; + acpi_gbl_db_method_info.arguments[1] = + acpi_gbl_db_method_info.id_of_thread_str; + acpi_gbl_db_method_info.arguments[2] = + acpi_gbl_db_method_info.index_of_thread_str; + acpi_gbl_db_method_info.arguments[3] = NULL; + + acpi_gbl_db_method_info.types = acpi_gbl_db_method_info.arg_types; + acpi_gbl_db_method_info.arg_types[0] = ACPI_TYPE_INTEGER; + acpi_gbl_db_method_info.arg_types[1] = ACPI_TYPE_INTEGER; + acpi_gbl_db_method_info.arg_types[2] = ACPI_TYPE_INTEGER; + + acpi_db_uint32_to_hex_string(num_threads, + acpi_gbl_db_method_info.num_threads_str); + + status = acpi_db_execute_setup(&acpi_gbl_db_method_info); + if (ACPI_FAILURE(status)) { + goto cleanup_and_exit; + } + + /* Get the NS node, determines existence also */ + + status = acpi_get_handle(NULL, acpi_gbl_db_method_info.pathname, + &acpi_gbl_db_method_info.method); + if (ACPI_FAILURE(status)) { + acpi_os_printf("%s Could not get handle for %s\n", + acpi_format_exception(status), + acpi_gbl_db_method_info.pathname); + goto cleanup_and_exit; + } + + /* Create the threads */ + + acpi_os_printf("Creating %X threads to execute %X times each\n", + num_threads, num_loops); + + for (i = 0; i < (num_threads); i++) { + status = + acpi_os_execute(OSL_DEBUGGER_EXEC_THREAD, + acpi_db_method_thread, + &acpi_gbl_db_method_info); + if (ACPI_FAILURE(status)) { + break; + } + } + + /* Wait for all threads to complete */ + + (void)acpi_os_wait_semaphore(main_thread_gate, 1, ACPI_WAIT_FOREVER); + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + acpi_os_printf("All threads (%X) have completed\n", num_threads); + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + +cleanup_and_exit: + + /* Cleanup and exit */ + + (void)acpi_os_delete_semaphore(main_thread_gate); + (void)acpi_os_delete_semaphore(thread_complete_gate); + (void)acpi_os_delete_semaphore(info_gate); + + acpi_os_free(acpi_gbl_db_method_info.threads); + acpi_gbl_db_method_info.threads = NULL; +} diff --git a/drivers/acpi/acpica/dbfileio.c b/drivers/acpi/acpica/dbfileio.c new file mode 100644 index 000000000000..d0e6b20ce82a --- /dev/null +++ b/drivers/acpi/acpica/dbfileio.c @@ -0,0 +1,256 @@ +/******************************************************************************* + * + * Module Name: dbfileio - Debugger file I/O commands. These can't usually + * be used when running the debugger in Ring 0 (Kernel mode) + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" +#include "actables.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbfileio") + +#ifdef ACPI_DEBUGGER +/******************************************************************************* + * + * FUNCTION: acpi_db_close_debug_file + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: If open, close the current debug output file + * + ******************************************************************************/ +void acpi_db_close_debug_file(void) +{ + +#ifdef ACPI_APPLICATION + + if (acpi_gbl_debug_file) { + fclose(acpi_gbl_debug_file); + acpi_gbl_debug_file = NULL; + acpi_gbl_db_output_to_file = FALSE; + acpi_os_printf("Debug output file %s closed\n", + acpi_gbl_db_debug_filename); + } +#endif +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_open_debug_file + * + * PARAMETERS: name - Filename to open + * + * RETURN: None + * + * DESCRIPTION: Open a file where debug output will be directed. + * + ******************************************************************************/ + +void acpi_db_open_debug_file(char *name) +{ + +#ifdef ACPI_APPLICATION + + acpi_db_close_debug_file(); + acpi_gbl_debug_file = fopen(name, "w+"); + if (!acpi_gbl_debug_file) { + acpi_os_printf("Could not open debug file %s\n", name); + return; + } + + acpi_os_printf("Debug output file %s opened\n", name); + strncpy(acpi_gbl_db_debug_filename, name, + sizeof(acpi_gbl_db_debug_filename)); + acpi_gbl_db_output_to_file = TRUE; + +#endif +} +#endif + +#ifdef ACPI_APPLICATION +#include "acapps.h" + +/******************************************************************************* + * + * FUNCTION: ae_local_load_table + * + * PARAMETERS: table - pointer to a buffer containing the entire + * table to be loaded + * + * RETURN: Status + * + * DESCRIPTION: This function is called to load a table from the caller's + * buffer. The buffer must contain an entire ACPI Table including + * a valid header. The header fields will be verified, and if it + * is determined that the table is invalid, the call will fail. + * + ******************************************************************************/ + +static acpi_status ae_local_load_table(struct acpi_table_header *table) +{ + acpi_status status = AE_OK; + + ACPI_FUNCTION_TRACE(ae_local_load_table); + +#if 0 +/* struct acpi_table_desc table_info; */ + + if (!table) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + table_info.pointer = table; + status = acpi_tb_recognize_table(&table_info, ACPI_TABLE_ALL); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Install the new table into the local data structures */ + + status = acpi_tb_init_table_descriptor(&table_info); + if (ACPI_FAILURE(status)) { + if (status == AE_ALREADY_EXISTS) { + + /* Table already exists, no error */ + + status = AE_OK; + } + + /* Free table allocated by acpi_tb_get_table */ + + acpi_tb_delete_single_table(&table_info); + return_ACPI_STATUS(status); + } +#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) + + status = + acpi_ns_load_table(table_info.installed_desc, acpi_gbl_root_node); + if (ACPI_FAILURE(status)) { + + /* Uninstall table and free the buffer */ + + acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_DSDT); + return_ACPI_STATUS(status); + } +#endif +#endif + + return_ACPI_STATUS(status); +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_table_from_file + * + * PARAMETERS: filename - File where table is located + * return_table - Where a pointer to the table is returned + * + * RETURN: Status + * + * DESCRIPTION: Load an ACPI table from a file + * + ******************************************************************************/ + +acpi_status +acpi_db_get_table_from_file(char *filename, + struct acpi_table_header **return_table, + u8 must_be_aml_file) +{ +#ifdef ACPI_APPLICATION + acpi_status status; + struct acpi_table_header *table; + u8 is_aml_table = TRUE; + + status = acpi_ut_read_table_from_file(filename, &table); + if (ACPI_FAILURE(status)) { + return (status); + } + + if (must_be_aml_file) { + is_aml_table = acpi_ut_is_aml_table(table); + if (!is_aml_table) { + ACPI_EXCEPTION((AE_INFO, AE_OK, + "Input for -e is not an AML table: " + "\"%4.4s\" (must be DSDT/SSDT)", + table->signature)); + return (AE_TYPE); + } + } + + if (is_aml_table) { + + /* Attempt to recognize and install the table */ + + status = ae_local_load_table(table); + if (ACPI_FAILURE(status)) { + if (status == AE_ALREADY_EXISTS) { + acpi_os_printf + ("Table %4.4s is already installed\n", + table->signature); + } else { + acpi_os_printf("Could not install table, %s\n", + acpi_format_exception(status)); + } + + return (status); + } + + acpi_tb_print_table_header(0, table); + + fprintf(stderr, + "Acpi table [%4.4s] successfully installed and loaded\n", + table->signature); + } + + acpi_gbl_acpi_hardware_present = FALSE; + if (return_table) { + *return_table = table; + } + +#endif /* ACPI_APPLICATION */ + return (AE_OK); +} diff --git a/drivers/acpi/acpica/dbhistry.c b/drivers/acpi/acpica/dbhistry.c new file mode 100644 index 000000000000..9c66a9eadd38 --- /dev/null +++ b/drivers/acpi/acpica/dbhistry.c @@ -0,0 +1,239 @@ +/****************************************************************************** + * + * Module Name: dbhistry - debugger HISTORY command + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbhistry") + +#define HI_NO_HISTORY 0 +#define HI_RECORD_HISTORY 1 +#define HISTORY_SIZE 40 +typedef struct history_info { + char *command; + u32 cmd_num; + +} HISTORY_INFO; + +static HISTORY_INFO acpi_gbl_history_buffer[HISTORY_SIZE]; +static u16 acpi_gbl_lo_history = 0; +static u16 acpi_gbl_num_history = 0; +static u16 acpi_gbl_next_history_index = 0; +u32 acpi_gbl_next_cmd_num = 1; + +/******************************************************************************* + * + * FUNCTION: acpi_db_add_to_history + * + * PARAMETERS: command_line - Command to add + * + * RETURN: None + * + * DESCRIPTION: Add a command line to the history buffer. + * + ******************************************************************************/ + +void acpi_db_add_to_history(char *command_line) +{ + u16 cmd_len; + u16 buffer_len; + + /* Put command into the next available slot */ + + cmd_len = (u16)strlen(command_line); + if (!cmd_len) { + return; + } + + if (acpi_gbl_history_buffer[acpi_gbl_next_history_index].command != + NULL) { + buffer_len = + (u16) + strlen(acpi_gbl_history_buffer[acpi_gbl_next_history_index]. + command); + + if (cmd_len > buffer_len) { + acpi_os_free(acpi_gbl_history_buffer + [acpi_gbl_next_history_index].command); + acpi_gbl_history_buffer[acpi_gbl_next_history_index]. + command = acpi_os_allocate(cmd_len + 1); + } + } else { + acpi_gbl_history_buffer[acpi_gbl_next_history_index].command = + acpi_os_allocate(cmd_len + 1); + } + + strcpy(acpi_gbl_history_buffer[acpi_gbl_next_history_index].command, + command_line); + + acpi_gbl_history_buffer[acpi_gbl_next_history_index].cmd_num = + acpi_gbl_next_cmd_num; + + /* Adjust indexes */ + + if ((acpi_gbl_num_history == HISTORY_SIZE) && + (acpi_gbl_next_history_index == acpi_gbl_lo_history)) { + acpi_gbl_lo_history++; + if (acpi_gbl_lo_history >= HISTORY_SIZE) { + acpi_gbl_lo_history = 0; + } + } + + acpi_gbl_next_history_index++; + if (acpi_gbl_next_history_index >= HISTORY_SIZE) { + acpi_gbl_next_history_index = 0; + } + + acpi_gbl_next_cmd_num++; + if (acpi_gbl_num_history < HISTORY_SIZE) { + acpi_gbl_num_history++; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_history + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display the contents of the history buffer + * + ******************************************************************************/ + +void acpi_db_display_history(void) +{ + u32 i; + u16 history_index; + + history_index = acpi_gbl_lo_history; + + /* Dump entire history buffer */ + + for (i = 0; i < acpi_gbl_num_history; i++) { + if (acpi_gbl_history_buffer[history_index].command) { + acpi_os_printf("%3ld %s\n", + acpi_gbl_history_buffer[history_index]. + cmd_num, + acpi_gbl_history_buffer[history_index]. + command); + } + + history_index++; + if (history_index >= HISTORY_SIZE) { + history_index = 0; + } + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_from_history + * + * PARAMETERS: command_num_arg - String containing the number of the + * command to be retrieved + * + * RETURN: Pointer to the retrieved command. Null on error. + * + * DESCRIPTION: Get a command from the history buffer + * + ******************************************************************************/ + +char *acpi_db_get_from_history(char *command_num_arg) +{ + u32 cmd_num; + + if (command_num_arg == NULL) { + cmd_num = acpi_gbl_next_cmd_num - 1; + } + + else { + cmd_num = strtoul(command_num_arg, NULL, 0); + } + + return (acpi_db_get_history_by_index(cmd_num)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_history_by_index + * + * PARAMETERS: cmd_num - Index of the desired history entry. + * Values are 0...(acpi_gbl_next_cmd_num - 1) + * + * RETURN: Pointer to the retrieved command. Null on error. + * + * DESCRIPTION: Get a command from the history buffer + * + ******************************************************************************/ + +char *acpi_db_get_history_by_index(u32 cmd_num) +{ + u32 i; + u16 history_index; + + /* Search history buffer */ + + history_index = acpi_gbl_lo_history; + for (i = 0; i < acpi_gbl_num_history; i++) { + if (acpi_gbl_history_buffer[history_index].cmd_num == cmd_num) { + + /* Found the command, return it */ + + return (acpi_gbl_history_buffer[history_index].command); + } + + /* History buffer is circular */ + + history_index++; + if (history_index >= HISTORY_SIZE) { + history_index = 0; + } + } + + acpi_os_printf("Invalid history number: %u\n", history_index); + return (NULL); +} diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c new file mode 100644 index 000000000000..0480254437f1 --- /dev/null +++ b/drivers/acpi/acpica/dbinput.c @@ -0,0 +1,1267 @@ +/******************************************************************************* + * + * Module Name: dbinput - user front-end to the AML debugger + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbinput") + +/* Local prototypes */ +static u32 acpi_db_get_line(char *input_buffer); + +static u32 acpi_db_match_command(char *user_command); + +static void acpi_db_single_thread(void); + +static void acpi_db_display_command_info(char *command, u8 display_all); + +static void acpi_db_display_help(char *command); + +static u8 +acpi_db_match_command_help(char *command, + const struct acpi_db_command_help *help); + +/* + * Top-level debugger commands. + * + * This list of commands must match the string table below it + */ +enum acpi_ex_debugger_commands { + CMD_NOT_FOUND = 0, + CMD_NULL, + CMD_ALLOCATIONS, + CMD_ARGS, + CMD_ARGUMENTS, + CMD_BREAKPOINT, + CMD_BUSINFO, + CMD_CALL, + CMD_DEBUG, + CMD_DISASSEMBLE, + CMD_DISASM, + CMD_DUMP, + CMD_EVALUATE, + CMD_EXECUTE, + CMD_EXIT, + CMD_FIND, + CMD_GO, + CMD_HANDLERS, + CMD_HELP, + CMD_HELP2, + CMD_HISTORY, + CMD_HISTORY_EXE, + CMD_HISTORY_LAST, + CMD_INFORMATION, + CMD_INTEGRITY, + CMD_INTO, + CMD_LEVEL, + CMD_LIST, + CMD_LOCALS, + CMD_LOCKS, + CMD_METHODS, + CMD_NAMESPACE, + CMD_NOTIFY, + CMD_OBJECTS, + CMD_OSI, + CMD_OWNER, + CMD_PATHS, + CMD_PREDEFINED, + CMD_PREFIX, + CMD_QUIT, + CMD_REFERENCES, + CMD_RESOURCES, + CMD_RESULTS, + CMD_SET, + CMD_STATS, + CMD_STOP, + CMD_TABLES, + CMD_TEMPLATE, + CMD_TRACE, + CMD_TREE, + CMD_TYPE, +#ifdef ACPI_APPLICATION + CMD_ENABLEACPI, + CMD_EVENT, + CMD_GPE, + CMD_GPES, + CMD_SCI, + CMD_SLEEP, + + CMD_CLOSE, + CMD_LOAD, + CMD_OPEN, + CMD_UNLOAD, + + CMD_TERMINATE, + CMD_THREADS, + + CMD_TEST, +#endif +}; + +#define CMD_FIRST_VALID 2 + +/* Second parameter is the required argument count */ + +static const struct acpi_db_command_info acpi_gbl_db_commands[] = { + {"<NOT FOUND>", 0}, + {"<NULL>", 0}, + {"ALLOCATIONS", 0}, + {"ARGS", 0}, + {"ARGUMENTS", 0}, + {"BREAKPOINT", 1}, + {"BUSINFO", 0}, + {"CALL", 0}, + {"DEBUG", 1}, + {"DISASSEMBLE", 1}, + {"DISASM", 1}, + {"DUMP", 1}, + {"EVALUATE", 1}, + {"EXECUTE", 1}, + {"EXIT", 0}, + {"FIND", 1}, + {"GO", 0}, + {"HANDLERS", 0}, + {"HELP", 0}, + {"?", 0}, + {"HISTORY", 0}, + {"!", 1}, + {"!!", 0}, + {"INFORMATION", 0}, + {"INTEGRITY", 0}, + {"INTO", 0}, + {"LEVEL", 0}, + {"LIST", 0}, + {"LOCALS", 0}, + {"LOCKS", 0}, + {"METHODS", 0}, + {"NAMESPACE", 0}, + {"NOTIFY", 2}, + {"OBJECTS", 0}, + {"OSI", 0}, + {"OWNER", 1}, + {"PATHS", 0}, + {"PREDEFINED", 0}, + {"PREFIX", 0}, + {"QUIT", 0}, + {"REFERENCES", 1}, + {"RESOURCES", 0}, + {"RESULTS", 0}, + {"SET", 3}, + {"STATS", 1}, + {"STOP", 0}, + {"TABLES", 0}, + {"TEMPLATE", 1}, + {"TRACE", 1}, + {"TREE", 0}, + {"TYPE", 1}, +#ifdef ACPI_APPLICATION + {"ENABLEACPI", 0}, + {"EVENT", 1}, + {"GPE", 1}, + {"GPES", 0}, + {"SCI", 0}, + {"SLEEP", 0}, + + {"CLOSE", 0}, + {"LOAD", 1}, + {"OPEN", 1}, + {"UNLOAD", 1}, + + {"TERMINATE", 0}, + {"THREADS", 3}, + + {"TEST", 1}, +#endif + {NULL, 0} +}; + +/* + * Help for all debugger commands. First argument is the number of lines + * of help to output for the command. + */ +static const struct acpi_db_command_help acpi_gbl_db_command_help[] = { + {0, "\nGeneral-Purpose Commands:", "\n"}, + {1, " Allocations", "Display list of current memory allocations\n"}, + {2, " Dump <Address>|<Namepath>", "\n"}, + {0, " [Byte|Word|Dword|Qword]", + "Display ACPI objects or memory\n"}, + {1, " Handlers", "Info about global handlers\n"}, + {1, " Help [Command]", "This help screen or individual command\n"}, + {1, " History", "Display command history buffer\n"}, + {1, " Level <DebugLevel>] [console]", + "Get/Set debug level for file or console\n"}, + {1, " Locks", "Current status of internal mutexes\n"}, + {1, " Osi [Install|Remove <name>]", + "Display or modify global _OSI list\n"}, + {1, " Quit or Exit", "Exit this command\n"}, + {8, " Stats <SubCommand>", + "Display namespace and memory statistics\n"}, + {1, " Allocations", "Display list of current memory allocations\n"}, + {1, " Memory", "Dump internal memory lists\n"}, + {1, " Misc", "Namespace search and mutex stats\n"}, + {1, " Objects", "Summary of namespace objects\n"}, + {1, " Sizes", "Sizes for each of the internal objects\n"}, + {1, " Stack", "Display CPU stack usage\n"}, + {1, " Tables", "Info about current ACPI table(s)\n"}, + {1, " Tables", "Display info about loaded ACPI tables\n"}, + {1, " ! <CommandNumber>", "Execute command from history buffer\n"}, + {1, " !!", "Execute last command again\n"}, + + {0, "\nNamespace Access Commands:", "\n"}, + {1, " Businfo", "Display system bus info\n"}, + {1, " Disassemble <Method>", "Disassemble a control method\n"}, + {1, " Find <AcpiName> (? is wildcard)", + "Find ACPI name(s) with wildcards\n"}, + {1, " Integrity", "Validate namespace integrity\n"}, + {1, " Methods", "Display list of loaded control methods\n"}, + {1, " Namespace [Object] [Depth]", + "Display loaded namespace tree/subtree\n"}, + {1, " Notify <Object> <Value>", "Send a notification on Object\n"}, + {1, " Objects [ObjectType]", + "Display summary of all objects or just given type\n"}, + {1, " Owner <OwnerId> [Depth]", + "Display loaded namespace by object owner\n"}, + {1, " Paths", "Display full pathnames of namespace objects\n"}, + {1, " Predefined", "Check all predefined names\n"}, + {1, " Prefix [<Namepath>]", "Set or Get current execution prefix\n"}, + {1, " References <Addr>", "Find all references to object at addr\n"}, + {1, " Resources [DeviceName]", + "Display Device resources (no arg = all devices)\n"}, + {1, " Set N <NamedObject> <Value>", "Set value for named integer\n"}, + {1, " Template <Object>", "Format/dump a Buffer/ResourceTemplate\n"}, + {1, " Type <Object>", "Display object type\n"}, + + {0, "\nControl Method Execution Commands:", "\n"}, + {1, " Arguments (or Args)", "Display method arguments\n"}, + {1, " Breakpoint <AmlOffset>", "Set an AML execution breakpoint\n"}, + {1, " Call", "Run to next control method invocation\n"}, + {1, " Debug <Namepath> [Arguments]", "Single Step a control method\n"}, + {6, " Evaluate", "Synonym for Execute\n"}, + {5, " Execute <Namepath> [Arguments]", "Execute control method\n"}, + {1, " Hex Integer", "Integer method argument\n"}, + {1, " \"Ascii String\"", "String method argument\n"}, + {1, " (Hex Byte List)", "Buffer method argument\n"}, + {1, " [Package Element List]", "Package method argument\n"}, + {1, " Go", "Allow method to run to completion\n"}, + {1, " Information", "Display info about the current method\n"}, + {1, " Into", "Step into (not over) a method call\n"}, + {1, " List [# of Aml Opcodes]", "Display method ASL statements\n"}, + {1, " Locals", "Display method local variables\n"}, + {1, " Results", "Display method result stack\n"}, + {1, " Set <A|L> <#> <Value>", "Set method data (Arguments/Locals)\n"}, + {1, " Stop", "Terminate control method\n"}, + {5, " Trace <State> [<Namepath>] [Once]", + "Trace control method execution\n"}, + {1, " Enable", "Enable all messages\n"}, + {1, " Disable", "Disable tracing\n"}, + {1, " Method", "Enable method execution messages\n"}, + {1, " Opcode", "Enable opcode execution messages\n"}, + {1, " Tree", "Display control method calling tree\n"}, + {1, " <Enter>", "Single step next AML opcode (over calls)\n"}, + +#ifdef ACPI_APPLICATION + {0, "\nHardware Simulation Commands:", "\n"}, + {1, " EnableAcpi", "Enable ACPI (hardware) mode\n"}, + {1, " Event <F|G> <Value>", "Generate AcpiEvent (Fixed/GPE)\n"}, + {1, " Gpe <GpeNum> [GpeBlockDevice]", "Simulate a GPE\n"}, + {1, " Gpes", "Display info on all GPE devices\n"}, + {1, " Sci", "Generate an SCI\n"}, + {1, " Sleep [SleepState]", "Simulate sleep/wake sequence(s) (0-5)\n"}, + + {0, "\nFile I/O Commands:", "\n"}, + {1, " Close", "Close debug output file\n"}, + {1, " Load <Input Filename>", "Load ACPI table from a file\n"}, + {1, " Open <Output Filename>", "Open a file for debug output\n"}, + {1, " Unload <Namepath>", + "Unload an ACPI table via namespace object\n"}, + + {0, "\nUser Space Commands:", "\n"}, + {1, " Terminate", "Delete namespace and all internal objects\n"}, + {1, " Thread <Threads><Loops><NamePath>", + "Spawn threads to execute method(s)\n"}, + + {0, "\nDebug Test Commands:", "\n"}, + {3, " Test <TestName>", "Invoke a debug test\n"}, + {1, " Objects", "Read/write/compare all namespace data objects\n"}, + {1, " Predefined", + "Execute all ACPI predefined names (_STA, etc.)\n"}, +#endif + {0, NULL, NULL} +}; + +/******************************************************************************* + * + * FUNCTION: acpi_db_match_command_help + * + * PARAMETERS: command - Command string to match + * help - Help table entry to attempt match + * + * RETURN: TRUE if command matched, FALSE otherwise + * + * DESCRIPTION: Attempt to match a command in the help table in order to + * print help information for a single command. + * + ******************************************************************************/ + +static u8 +acpi_db_match_command_help(char *command, + const struct acpi_db_command_help *help) +{ + char *invocation = help->invocation; + u32 line_count; + + /* Valid commands in the help table begin with a couple of spaces */ + + if (*invocation != ' ') { + return (FALSE); + } + + while (*invocation == ' ') { + invocation++; + } + + /* Match command name (full command or substring) */ + + while ((*command) && (*invocation) && (*invocation != ' ')) { + if (tolower((int)*command) != tolower((int)*invocation)) { + return (FALSE); + } + + invocation++; + command++; + } + + /* Print the appropriate number of help lines */ + + line_count = help->line_count; + while (line_count) { + acpi_os_printf("%-38s : %s", help->invocation, + help->description); + help++; + line_count--; + } + + return (TRUE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_command_info + * + * PARAMETERS: command - Command string to match + * display_all - Display all matching commands, or just + * the first one (substring match) + * + * RETURN: None + * + * DESCRIPTION: Display help information for a Debugger command. + * + ******************************************************************************/ + +static void acpi_db_display_command_info(char *command, u8 display_all) +{ + const struct acpi_db_command_help *next; + u8 matched; + + next = acpi_gbl_db_command_help; + while (next->invocation) { + matched = acpi_db_match_command_help(command, next); + if (!display_all && matched) { + return; + } + + next++; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_help + * + * PARAMETERS: command - Optional command string to display help. + * if not specified, all debugger command + * help strings are displayed + * + * RETURN: None + * + * DESCRIPTION: Display help for a single debugger command, or all of them. + * + ******************************************************************************/ + +static void acpi_db_display_help(char *command) +{ + const struct acpi_db_command_help *next = acpi_gbl_db_command_help; + + if (!command) { + + /* No argument to help, display help for all commands */ + + while (next->invocation) { + acpi_os_printf("%-38s%s", next->invocation, + next->description); + next++; + } + } else { + /* Display help for all commands that match the subtring */ + + acpi_db_display_command_info(command, TRUE); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_next_token + * + * PARAMETERS: string - Command buffer + * next - Return value, end of next token + * + * RETURN: Pointer to the start of the next token. + * + * DESCRIPTION: Command line parsing. Get the next token on the command line + * + ******************************************************************************/ + +char *acpi_db_get_next_token(char *string, + char **next, acpi_object_type * return_type) +{ + char *start; + u32 depth; + acpi_object_type type = ACPI_TYPE_INTEGER; + + /* At end of buffer? */ + + if (!string || !(*string)) { + return (NULL); + } + + /* Remove any spaces at the beginning */ + + if (*string == ' ') { + while (*string && (*string == ' ')) { + string++; + } + + if (!(*string)) { + return (NULL); + } + } + + switch (*string) { + case '"': + + /* This is a quoted string, scan until closing quote */ + + string++; + start = string; + type = ACPI_TYPE_STRING; + + /* Find end of string */ + + while (*string && (*string != '"')) { + string++; + } + break; + + case '(': + + /* This is the start of a buffer, scan until closing paren */ + + string++; + start = string; + type = ACPI_TYPE_BUFFER; + + /* Find end of buffer */ + + while (*string && (*string != ')')) { + string++; + } + break; + + case '[': + + /* This is the start of a package, scan until closing bracket */ + + string++; + depth = 1; + start = string; + type = ACPI_TYPE_PACKAGE; + + /* Find end of package (closing bracket) */ + + while (*string) { + + /* Handle String package elements */ + + if (*string == '"') { + /* Find end of string */ + + string++; + while (*string && (*string != '"')) { + string++; + } + if (!(*string)) { + break; + } + } else if (*string == '[') { + depth++; /* A nested package declaration */ + } else if (*string == ']') { + depth--; + if (depth == 0) { /* Found final package closing bracket */ + break; + } + } + + string++; + } + break; + + default: + + start = string; + + /* Find end of token */ + + while (*string && (*string != ' ')) { + string++; + } + break; + } + + if (!(*string)) { + *next = NULL; + } else { + *string = 0; + *next = string + 1; + } + + *return_type = type; + return (start); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_line + * + * PARAMETERS: input_buffer - Command line buffer + * + * RETURN: Count of arguments to the command + * + * DESCRIPTION: Get the next command line from the user. Gets entire line + * up to the next newline + * + ******************************************************************************/ + +static u32 acpi_db_get_line(char *input_buffer) +{ + u32 i; + u32 count; + char *next; + char *this; + + if (acpi_ut_safe_strcpy + (acpi_gbl_db_parsed_buf, sizeof(acpi_gbl_db_parsed_buf), + input_buffer)) { + acpi_os_printf + ("Buffer overflow while parsing input line (max %u characters)\n", + sizeof(acpi_gbl_db_parsed_buf)); + return (0); + } + + this = acpi_gbl_db_parsed_buf; + for (i = 0; i < ACPI_DEBUGGER_MAX_ARGS; i++) { + acpi_gbl_db_args[i] = acpi_db_get_next_token(this, &next, + &acpi_gbl_db_arg_types + [i]); + if (!acpi_gbl_db_args[i]) { + break; + } + + this = next; + } + + /* Uppercase the actual command */ + + if (acpi_gbl_db_args[0]) { + acpi_ut_strupr(acpi_gbl_db_args[0]); + } + + count = i; + if (count) { + count--; /* Number of args only */ + } + + return (count); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_match_command + * + * PARAMETERS: user_command - User command line + * + * RETURN: Index into command array, -1 if not found + * + * DESCRIPTION: Search command array for a command match + * + ******************************************************************************/ + +static u32 acpi_db_match_command(char *user_command) +{ + u32 i; + + if (!user_command || user_command[0] == 0) { + return (CMD_NULL); + } + + for (i = CMD_FIRST_VALID; acpi_gbl_db_commands[i].name; i++) { + if (strstr(acpi_gbl_db_commands[i].name, user_command) == + acpi_gbl_db_commands[i].name) { + return (i); + } + } + + /* Command not recognized */ + + return (CMD_NOT_FOUND); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_command_dispatch + * + * PARAMETERS: input_buffer - Command line buffer + * walk_state - Current walk + * op - Current (executing) parse op + * + * RETURN: Status + * + * DESCRIPTION: Command dispatcher. + * + ******************************************************************************/ + +acpi_status +acpi_db_command_dispatch(char *input_buffer, + struct acpi_walk_state * walk_state, + union acpi_parse_object * op) +{ + u32 temp; + u32 command_index; + u32 param_count; + char *command_line; + acpi_status status = AE_CTRL_TRUE; + + /* If acpi_terminate has been called, terminate this thread */ + + if (acpi_gbl_db_terminate_loop) { + return (AE_CTRL_TERMINATE); + } + + /* Find command and add to the history buffer */ + + param_count = acpi_db_get_line(input_buffer); + command_index = acpi_db_match_command(acpi_gbl_db_args[0]); + temp = 0; + + /* + * We don't want to add the !! command to the history buffer. It + * would cause an infinite loop because it would always be the + * previous command. + */ + if (command_index != CMD_HISTORY_LAST) { + acpi_db_add_to_history(input_buffer); + } + + /* Verify that we have the minimum number of params */ + + if (param_count < acpi_gbl_db_commands[command_index].min_args) { + acpi_os_printf + ("%u parameters entered, [%s] requires %u parameters\n", + param_count, acpi_gbl_db_commands[command_index].name, + acpi_gbl_db_commands[command_index].min_args); + + acpi_db_display_command_info(acpi_gbl_db_commands + [command_index].name, FALSE); + return (AE_CTRL_TRUE); + } + + /* Decode and dispatch the command */ + + switch (command_index) { + case CMD_NULL: + + if (op) { + return (AE_OK); + } + break; + + case CMD_ALLOCATIONS: + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + acpi_ut_dump_allocations((u32)-1, NULL); +#endif + break; + + case CMD_ARGS: + case CMD_ARGUMENTS: + + acpi_db_display_arguments(); + break; + + case CMD_BREAKPOINT: + + acpi_db_set_method_breakpoint(acpi_gbl_db_args[1], walk_state, + op); + break; + + case CMD_BUSINFO: + + acpi_db_get_bus_info(); + break; + + case CMD_CALL: + + acpi_db_set_method_call_breakpoint(op); + status = AE_OK; + break; + + case CMD_DEBUG: + + acpi_db_execute(acpi_gbl_db_args[1], + &acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2], + EX_SINGLE_STEP); + break; + + case CMD_DISASSEMBLE: + case CMD_DISASM: + + (void)acpi_db_disassemble_method(acpi_gbl_db_args[1]); + break; + + case CMD_DUMP: + + acpi_db_decode_and_display_object(acpi_gbl_db_args[1], + acpi_gbl_db_args[2]); + break; + + case CMD_EVALUATE: + case CMD_EXECUTE: + + acpi_db_execute(acpi_gbl_db_args[1], + &acpi_gbl_db_args[2], &acpi_gbl_db_arg_types[2], + EX_NO_SINGLE_STEP); + break; + + case CMD_FIND: + + status = acpi_db_find_name_in_namespace(acpi_gbl_db_args[1]); + break; + + case CMD_GO: + + acpi_gbl_cm_single_step = FALSE; + return (AE_OK); + + case CMD_HANDLERS: + + acpi_db_display_handlers(); + break; + + case CMD_HELP: + case CMD_HELP2: + + acpi_db_display_help(acpi_gbl_db_args[1]); + break; + + case CMD_HISTORY: + + acpi_db_display_history(); + break; + + case CMD_HISTORY_EXE: /* ! command */ + + command_line = acpi_db_get_from_history(acpi_gbl_db_args[1]); + if (!command_line) { + return (AE_CTRL_TRUE); + } + + status = acpi_db_command_dispatch(command_line, walk_state, op); + return (status); + + case CMD_HISTORY_LAST: /* !! command */ + + command_line = acpi_db_get_from_history(NULL); + if (!command_line) { + return (AE_CTRL_TRUE); + } + + status = acpi_db_command_dispatch(command_line, walk_state, op); + return (status); + + case CMD_INFORMATION: + + acpi_db_display_method_info(op); + break; + + case CMD_INTEGRITY: + + acpi_db_check_integrity(); + break; + + case CMD_INTO: + + if (op) { + acpi_gbl_cm_single_step = TRUE; + return (AE_OK); + } + break; + + case CMD_LEVEL: + + if (param_count == 0) { + acpi_os_printf + ("Current debug level for file output is: %8.8lX\n", + acpi_gbl_db_debug_level); + acpi_os_printf + ("Current debug level for console output is: %8.8lX\n", + acpi_gbl_db_console_debug_level); + } else if (param_count == 2) { + temp = acpi_gbl_db_console_debug_level; + acpi_gbl_db_console_debug_level = + strtoul(acpi_gbl_db_args[1], NULL, 16); + acpi_os_printf + ("Debug Level for console output was %8.8lX, now %8.8lX\n", + temp, acpi_gbl_db_console_debug_level); + } else { + temp = acpi_gbl_db_debug_level; + acpi_gbl_db_debug_level = + strtoul(acpi_gbl_db_args[1], NULL, 16); + acpi_os_printf + ("Debug Level for file output was %8.8lX, now %8.8lX\n", + temp, acpi_gbl_db_debug_level); + } + break; + + case CMD_LIST: + + acpi_db_disassemble_aml(acpi_gbl_db_args[1], op); + break; + + case CMD_LOCKS: + + acpi_db_display_locks(); + break; + + case CMD_LOCALS: + + acpi_db_display_locals(); + break; + + case CMD_METHODS: + + status = acpi_db_display_objects("METHOD", acpi_gbl_db_args[1]); + break; + + case CMD_NAMESPACE: + + acpi_db_dump_namespace(acpi_gbl_db_args[1], + acpi_gbl_db_args[2]); + break; + + case CMD_NOTIFY: + + temp = strtoul(acpi_gbl_db_args[2], NULL, 0); + acpi_db_send_notify(acpi_gbl_db_args[1], temp); + break; + + case CMD_OBJECTS: + + acpi_ut_strupr(acpi_gbl_db_args[1]); + status = + acpi_db_display_objects(acpi_gbl_db_args[1], + acpi_gbl_db_args[2]); + break; + + case CMD_OSI: + + acpi_db_display_interfaces(acpi_gbl_db_args[1], + acpi_gbl_db_args[2]); + break; + + case CMD_OWNER: + + acpi_db_dump_namespace_by_owner(acpi_gbl_db_args[1], + acpi_gbl_db_args[2]); + break; + + case CMD_PATHS: + + acpi_db_dump_namespace_paths(); + break; + + case CMD_PREFIX: + + acpi_db_set_scope(acpi_gbl_db_args[1]); + break; + + case CMD_REFERENCES: + + acpi_db_find_references(acpi_gbl_db_args[1]); + break; + + case CMD_RESOURCES: + + acpi_db_display_resources(acpi_gbl_db_args[1]); + break; + + case CMD_RESULTS: + + acpi_db_display_results(); + break; + + case CMD_SET: + + acpi_db_set_method_data(acpi_gbl_db_args[1], + acpi_gbl_db_args[2], + acpi_gbl_db_args[3]); + break; + + case CMD_STATS: + + status = acpi_db_display_statistics(acpi_gbl_db_args[1]); + break; + + case CMD_STOP: + + return (AE_NOT_IMPLEMENTED); + + case CMD_TABLES: + + acpi_db_display_table_info(acpi_gbl_db_args[1]); + break; + + case CMD_TEMPLATE: + + acpi_db_display_template(acpi_gbl_db_args[1]); + break; + + case CMD_TRACE: + + acpi_db_trace(acpi_gbl_db_args[1], acpi_gbl_db_args[2], + acpi_gbl_db_args[3]); + break; + + case CMD_TREE: + + acpi_db_display_calling_tree(); + break; + + case CMD_TYPE: + + acpi_db_display_object_type(acpi_gbl_db_args[1]); + break; + +#ifdef ACPI_APPLICATION + + /* Hardware simulation commands. */ + + case CMD_ENABLEACPI: +#if (!ACPI_REDUCED_HARDWARE) + + status = acpi_enable(); + if (ACPI_FAILURE(status)) { + acpi_os_printf("AcpiEnable failed (Status=%X)\n", + status); + return (status); + } +#endif /* !ACPI_REDUCED_HARDWARE */ + break; + + case CMD_EVENT: + + acpi_os_printf("Event command not implemented\n"); + break; + + case CMD_GPE: + + acpi_db_generate_gpe(acpi_gbl_db_args[1], acpi_gbl_db_args[2]); + break; + + case CMD_GPES: + + acpi_db_display_gpes(); + break; + + case CMD_SCI: + + acpi_db_generate_sci(); + break; + + case CMD_SLEEP: + + status = acpi_db_sleep(acpi_gbl_db_args[1]); + break; + + /* File I/O commands. */ + + case CMD_CLOSE: + + acpi_db_close_debug_file(); + break; + + case CMD_LOAD: + + status = + acpi_db_get_table_from_file(acpi_gbl_db_args[1], NULL, + FALSE); + break; + + case CMD_OPEN: + + acpi_db_open_debug_file(acpi_gbl_db_args[1]); + break; + + /* User space commands. */ + + case CMD_TERMINATE: + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + acpi_ut_subsystem_shutdown(); + + /* + * TBD: [Restructure] Need some way to re-initialize without + * re-creating the semaphores! + */ + + acpi_gbl_db_terminate_loop = TRUE; + /* acpi_initialize (NULL); */ + break; + + case CMD_THREADS: + + acpi_db_create_execution_threads(acpi_gbl_db_args[1], + acpi_gbl_db_args[2], + acpi_gbl_db_args[3]); + break; + + /* Debug test commands. */ + + case CMD_PREDEFINED: + + acpi_db_check_predefined_names(); + break; + + case CMD_TEST: + + acpi_db_execute_test(acpi_gbl_db_args[1]); + break; + + case CMD_UNLOAD: + + acpi_db_unload_acpi_table(acpi_gbl_db_args[1]); + break; +#endif + + case CMD_EXIT: + case CMD_QUIT: + + if (op) { + acpi_os_printf("Method execution terminated\n"); + return (AE_CTRL_TERMINATE); + } + + if (!acpi_gbl_db_output_to_file) { + acpi_dbg_level = ACPI_DEBUG_DEFAULT; + } +#ifdef ACPI_APPLICATION + acpi_db_close_debug_file(); +#endif + acpi_gbl_db_terminate_loop = TRUE; + return (AE_CTRL_TERMINATE); + + case CMD_NOT_FOUND: + default: + + acpi_os_printf("%s: unknown command\n", acpi_gbl_db_args[0]); + return (AE_CTRL_TRUE); + } + + if (ACPI_SUCCESS(status)) { + status = AE_CTRL_TRUE; + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_execute_thread + * + * PARAMETERS: context - Not used + * + * RETURN: None + * + * DESCRIPTION: Debugger execute thread. Waits for a command line, then + * simply dispatches it. + * + ******************************************************************************/ + +void ACPI_SYSTEM_XFACE acpi_db_execute_thread(void *context) +{ + acpi_status status = AE_OK; + acpi_status Mstatus; + + while (status != AE_CTRL_TERMINATE && !acpi_gbl_db_terminate_loop) { + acpi_gbl_method_executing = FALSE; + acpi_gbl_step_to_next_call = FALSE; + + Mstatus = acpi_os_acquire_mutex(acpi_gbl_db_command_ready, + ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(Mstatus)) { + return; + } + + status = + acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL); + + acpi_os_release_mutex(acpi_gbl_db_command_complete); + } + acpi_gbl_db_threads_terminated = TRUE; +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_single_thread + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Debugger execute thread. Waits for a command line, then + * simply dispatches it. + * + ******************************************************************************/ + +static void acpi_db_single_thread(void) +{ + + acpi_gbl_method_executing = FALSE; + acpi_gbl_step_to_next_call = FALSE; + + (void)acpi_db_command_dispatch(acpi_gbl_db_line_buf, NULL, NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_user_commands + * + * PARAMETERS: prompt - User prompt (depends on mode) + * op - Current executing parse op + * + * RETURN: None + * + * DESCRIPTION: Command line execution for the AML debugger. Commands are + * matched and dispatched here. + * + ******************************************************************************/ + +acpi_status acpi_db_user_commands(char prompt, union acpi_parse_object *op) +{ + acpi_status status = AE_OK; + + acpi_os_printf("\n"); + + /* TBD: [Restructure] Need a separate command line buffer for step mode */ + + while (!acpi_gbl_db_terminate_loop) { + + /* Force output to console until a command is entered */ + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + + /* Different prompt if method is executing */ + + if (!acpi_gbl_method_executing) { + acpi_os_printf("%1c ", ACPI_DEBUGGER_COMMAND_PROMPT); + } else { + acpi_os_printf("%1c ", ACPI_DEBUGGER_EXECUTE_PROMPT); + } + + /* Get the user input line */ + + status = acpi_os_get_line(acpi_gbl_db_line_buf, + ACPI_DB_LINE_BUFFER_SIZE, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While parsing command line")); + return (status); + } + + /* Check for single or multithreaded debug */ + + if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) { + /* + * Signal the debug thread that we have a command to execute, + * and wait for the command to complete. + */ + acpi_os_release_mutex(acpi_gbl_db_command_ready); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_os_acquire_mutex(acpi_gbl_db_command_complete, + ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return (status); + } + } else { + /* Just call to the command line interpreter */ + + acpi_db_single_thread(); + } + } + + return (status); +} diff --git a/drivers/acpi/acpica/dbmethod.c b/drivers/acpi/acpica/dbmethod.c new file mode 100644 index 000000000000..01e5a71147fd --- /dev/null +++ b/drivers/acpi/acpica/dbmethod.c @@ -0,0 +1,369 @@ +/******************************************************************************* + * + * Module Name: dbmethod - Debug commands for control methods + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdispat.h" +#include "acnamesp.h" +#include "acdebug.h" +#include "acparser.h" +#include "acpredef.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbmethod") + +/******************************************************************************* + * + * FUNCTION: acpi_db_set_method_breakpoint + * + * PARAMETERS: location - AML offset of breakpoint + * walk_state - Current walk info + * op - Current Op (from parse walk) + * + * RETURN: None + * + * DESCRIPTION: Set a breakpoint in a control method at the specified + * AML offset + * + ******************************************************************************/ +void +acpi_db_set_method_breakpoint(char *location, + struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + u32 address; + u32 aml_offset; + + if (!op) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + /* Get and verify the breakpoint address */ + + address = strtoul(location, NULL, 16); + aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml, + walk_state->parser_state.aml_start); + if (address <= aml_offset) { + acpi_os_printf("Breakpoint %X is beyond current address %X\n", + address, aml_offset); + } + + /* Save breakpoint in current walk */ + + walk_state->user_breakpoint = address; + acpi_os_printf("Breakpoint set at AML offset %X\n", address); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_set_method_call_breakpoint + * + * PARAMETERS: op - Current Op (from parse walk) + * + * RETURN: None + * + * DESCRIPTION: Set a breakpoint in a control method at the specified + * AML offset + * + ******************************************************************************/ + +void acpi_db_set_method_call_breakpoint(union acpi_parse_object *op) +{ + + if (!op) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + acpi_gbl_step_to_next_call = TRUE; +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_set_method_data + * + * PARAMETERS: type_arg - L for local, A for argument + * index_arg - which one + * value_arg - Value to set. + * + * RETURN: None + * + * DESCRIPTION: Set a local or argument for the running control method. + * NOTE: only object supported is Number. + * + ******************************************************************************/ + +void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg) +{ + char type; + u32 index; + u32 value; + struct acpi_walk_state *walk_state; + union acpi_operand_object *obj_desc; + acpi_status status; + struct acpi_namespace_node *node; + + /* Validate type_arg */ + + acpi_ut_strupr(type_arg); + type = type_arg[0]; + if ((type != 'L') && (type != 'A') && (type != 'N')) { + acpi_os_printf("Invalid SET operand: %s\n", type_arg); + return; + } + + value = strtoul(value_arg, NULL, 16); + + if (type == 'N') { + node = acpi_db_convert_to_node(index_arg); + if (!node) { + return; + } + + if (node->type != ACPI_TYPE_INTEGER) { + acpi_os_printf("Can only set Integer nodes\n"); + return; + } + obj_desc = node->object; + obj_desc->integer.value = value; + return; + } + + /* Get the index and value */ + + index = strtoul(index_arg, NULL, 16); + + walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list); + if (!walk_state) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + /* Create and initialize the new object */ + + obj_desc = acpi_ut_create_integer_object((u64)value); + if (!obj_desc) { + acpi_os_printf("Could not create an internal object\n"); + return; + } + + /* Store the new object into the target */ + + switch (type) { + case 'A': + + /* Set a method argument */ + + if (index > ACPI_METHOD_MAX_ARG) { + acpi_os_printf("Arg%u - Invalid argument name\n", + index); + goto cleanup; + } + + status = acpi_ds_store_object_to_local(ACPI_REFCLASS_ARG, + index, obj_desc, + walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + obj_desc = walk_state->arguments[index].object; + + acpi_os_printf("Arg%u: ", index); + acpi_db_display_internal_object(obj_desc, walk_state); + break; + + case 'L': + + /* Set a method local */ + + if (index > ACPI_METHOD_MAX_LOCAL) { + acpi_os_printf + ("Local%u - Invalid local variable name\n", index); + goto cleanup; + } + + status = acpi_ds_store_object_to_local(ACPI_REFCLASS_LOCAL, + index, obj_desc, + walk_state); + if (ACPI_FAILURE(status)) { + goto cleanup; + } + + obj_desc = walk_state->local_variables[index].object; + + acpi_os_printf("Local%u: ", index); + acpi_db_display_internal_object(obj_desc, walk_state); + break; + + default: + + break; + } + +cleanup: + acpi_ut_remove_reference(obj_desc); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_disassemble_aml + * + * PARAMETERS: statements - Number of statements to disassemble + * op - Current Op (from parse walk) + * + * RETURN: None + * + * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number + * of statements specified. + * + ******************************************************************************/ + +void acpi_db_disassemble_aml(char *statements, union acpi_parse_object *op) +{ + u32 num_statements = 8; + + if (!op) { + acpi_os_printf("There is no method currently executing\n"); + return; + } + + if (statements) { + num_statements = strtoul(statements, NULL, 0); + } +#ifdef ACPI_DISASSEMBLER + acpi_dm_disassemble(NULL, op, num_statements); +#endif +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_disassemble_method + * + * PARAMETERS: name - Name of control method + * + * RETURN: None + * + * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number + * of statements specified. + * + ******************************************************************************/ + +acpi_status acpi_db_disassemble_method(char *name) +{ + acpi_status status; + union acpi_parse_object *op; + struct acpi_walk_state *walk_state; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *method; + + method = acpi_db_convert_to_node(name); + if (!method) { + return (AE_BAD_PARAMETER); + } + + if (method->type != ACPI_TYPE_METHOD) { + ACPI_ERROR((AE_INFO, "%s (%s): Object must be a control method", + name, acpi_ut_get_type_name(method->type))); + return (AE_BAD_PARAMETER); + } + + obj_desc = method->object; + + op = acpi_ps_create_scope_op(obj_desc->method.aml_start); + if (!op) { + return (AE_NO_MEMORY); + } + + /* Create and initialize a new walk state */ + + walk_state = acpi_ds_create_walk_state(0, op, NULL, NULL); + if (!walk_state) { + return (AE_NO_MEMORY); + } + + status = acpi_ds_init_aml_walk(walk_state, op, NULL, + obj_desc->method.aml_start, + obj_desc->method.aml_length, NULL, + ACPI_IMODE_LOAD_PASS1); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id); + walk_state->owner_id = obj_desc->method.owner_id; + + /* Push start scope on scope stack and make it current */ + + status = acpi_ds_scope_stack_push(method, method->type, walk_state); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Parse the entire method AML including deferred operators */ + + walk_state->parse_flags &= ~ACPI_PARSE_DELETE_TREE; + walk_state->parse_flags |= ACPI_PARSE_DISASSEMBLE; + + status = acpi_ps_parse_aml(walk_state); + +#ifdef ACPI_DISASSEMBLER + (void)acpi_dm_parse_deferred_ops(op); + + /* Now we can disassemble the method */ + + acpi_gbl_dm_opt_verbose = FALSE; + acpi_dm_disassemble(NULL, op, 0); + acpi_gbl_dm_opt_verbose = TRUE; +#endif + + acpi_ps_delete_parse_tree(op); + + /* Method cleanup */ + + acpi_ns_delete_namespace_subtree(method); + acpi_ns_delete_namespace_by_owner(obj_desc->method.owner_id); + acpi_ut_release_owner_id(&obj_desc->method.owner_id); + return (AE_OK); +} diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c new file mode 100644 index 000000000000..04ff1ebfda58 --- /dev/null +++ b/drivers/acpi/acpica/dbnames.c @@ -0,0 +1,947 @@ +/******************************************************************************* + * + * Module Name: dbnames - Debugger commands for the acpi namespace + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acnamesp.h" +#include "acdebug.h" +#include "acpredef.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbnames") + +/* Local prototypes */ +static acpi_status +acpi_db_walk_and_match_name(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +static acpi_status +acpi_db_walk_for_predefined_names(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +static acpi_status +acpi_db_walk_for_specific_objects(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +static acpi_status +acpi_db_walk_for_object_counts(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +static acpi_status +acpi_db_integrity_walk(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +static acpi_status +acpi_db_walk_for_references(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +static acpi_status +acpi_db_bus_walk(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +/* + * Arguments for the Objects command + * These object types map directly to the ACPI_TYPES + */ +static struct acpi_db_argument_info acpi_db_object_types[] = { + {"ANY"}, + {"INTEGERS"}, + {"STRINGS"}, + {"BUFFERS"}, + {"PACKAGES"}, + {"FIELDS"}, + {"DEVICES"}, + {"EVENTS"}, + {"METHODS"}, + {"MUTEXES"}, + {"REGIONS"}, + {"POWERRESOURCES"}, + {"PROCESSORS"}, + {"THERMALZONES"}, + {"BUFFERFIELDS"}, + {"DDBHANDLES"}, + {"DEBUG"}, + {"REGIONFIELDS"}, + {"BANKFIELDS"}, + {"INDEXFIELDS"}, + {"REFERENCES"}, + {"ALIASES"}, + {"METHODALIASES"}, + {"NOTIFY"}, + {"ADDRESSHANDLER"}, + {"RESOURCE"}, + {"RESOURCEFIELD"}, + {"SCOPES"}, + {NULL} /* Must be null terminated */ +}; + +/******************************************************************************* + * + * FUNCTION: acpi_db_set_scope + * + * PARAMETERS: name - New scope path + * + * RETURN: Status + * + * DESCRIPTION: Set the "current scope" as maintained by this utility. + * The scope is used as a prefix to ACPI paths. + * + ******************************************************************************/ + +void acpi_db_set_scope(char *name) +{ + acpi_status status; + struct acpi_namespace_node *node; + + if (!name || name[0] == 0) { + acpi_os_printf("Current scope: %s\n", acpi_gbl_db_scope_buf); + return; + } + + acpi_db_prep_namestring(name); + + if (ACPI_IS_ROOT_PREFIX(name[0])) { + + /* Validate new scope from the root */ + + status = acpi_ns_get_node(acpi_gbl_root_node, name, + ACPI_NS_NO_UPSEARCH, &node); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + + acpi_gbl_db_scope_buf[0] = 0; + } else { + /* Validate new scope relative to old scope */ + + status = acpi_ns_get_node(acpi_gbl_db_scope_node, name, + ACPI_NS_NO_UPSEARCH, &node); + if (ACPI_FAILURE(status)) { + goto error_exit; + } + } + + /* Build the final pathname */ + + if (acpi_ut_safe_strcat + (acpi_gbl_db_scope_buf, sizeof(acpi_gbl_db_scope_buf), name)) { + status = AE_BUFFER_OVERFLOW; + goto error_exit; + } + + if (acpi_ut_safe_strcat + (acpi_gbl_db_scope_buf, sizeof(acpi_gbl_db_scope_buf), "\\")) { + status = AE_BUFFER_OVERFLOW; + goto error_exit; + } + + acpi_gbl_db_scope_node = node; + acpi_os_printf("New scope: %s\n", acpi_gbl_db_scope_buf); + return; + +error_exit: + + acpi_os_printf("Could not attach scope: %s, %s\n", + name, acpi_format_exception(status)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_namespace + * + * PARAMETERS: start_arg - Node to begin namespace dump + * depth_arg - Maximum tree depth to be dumped + * + * RETURN: None + * + * DESCRIPTION: Dump entire namespace or a subtree. Each node is displayed + * with type and other information. + * + ******************************************************************************/ + +void acpi_db_dump_namespace(char *start_arg, char *depth_arg) +{ + acpi_handle subtree_entry = acpi_gbl_root_node; + u32 max_depth = ACPI_UINT32_MAX; + + /* No argument given, just start at the root and dump entire namespace */ + + if (start_arg) { + subtree_entry = acpi_db_convert_to_node(start_arg); + if (!subtree_entry) { + return; + } + + /* Now we can check for the depth argument */ + + if (depth_arg) { + max_depth = strtoul(depth_arg, NULL, 0); + } + } + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + acpi_os_printf("ACPI Namespace (from %4.4s (%p) subtree):\n", + ((struct acpi_namespace_node *)subtree_entry)->name. + ascii, subtree_entry); + + /* Display the subtree */ + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY, max_depth, + ACPI_OWNER_ID_MAX, subtree_entry); + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_namespace_paths + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Dump entire namespace with full object pathnames and object + * type information. Alternative to "namespace" command. + * + ******************************************************************************/ + +void acpi_db_dump_namespace_paths(void) +{ + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + acpi_os_printf("ACPI Namespace (from root):\n"); + + /* Display the entire namespace */ + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + acpi_ns_dump_object_paths(ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY, + ACPI_UINT32_MAX, ACPI_OWNER_ID_MAX, + acpi_gbl_root_node); + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_namespace_by_owner + * + * PARAMETERS: owner_arg - Owner ID whose nodes will be displayed + * depth_arg - Maximum tree depth to be dumped + * + * RETURN: None + * + * DESCRIPTION: Dump elements of the namespace that are owned by the owner_id. + * + ******************************************************************************/ + +void acpi_db_dump_namespace_by_owner(char *owner_arg, char *depth_arg) +{ + acpi_handle subtree_entry = acpi_gbl_root_node; + u32 max_depth = ACPI_UINT32_MAX; + acpi_owner_id owner_id; + + owner_id = (acpi_owner_id) strtoul(owner_arg, NULL, 0); + + /* Now we can check for the depth argument */ + + if (depth_arg) { + max_depth = strtoul(depth_arg, NULL, 0); + } + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + acpi_os_printf("ACPI Namespace by owner %X:\n", owner_id); + + /* Display the subtree */ + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + acpi_ns_dump_objects(ACPI_TYPE_ANY, ACPI_DISPLAY_SUMMARY, max_depth, + owner_id, subtree_entry); + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_walk_and_match_name + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Find a particular name/names within the namespace. Wildcards + * are supported -- '?' matches any character. + * + ******************************************************************************/ + +static acpi_status +acpi_db_walk_and_match_name(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + acpi_status status; + char *requested_name = (char *)context; + u32 i; + struct acpi_buffer buffer; + struct acpi_walk_info info; + + /* Check for a name match */ + + for (i = 0; i < 4; i++) { + + /* Wildcard support */ + + if ((requested_name[i] != '?') && + (requested_name[i] != ((struct acpi_namespace_node *) + obj_handle)->name.ascii[i])) { + + /* No match, just exit */ + + return (AE_OK); + } + } + + /* Get the full pathname to this object */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could Not get pathname for object %p\n", + obj_handle); + } else { + info.owner_id = ACPI_OWNER_ID_MAX; + info.debug_level = ACPI_UINT32_MAX; + info.display_type = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT; + + acpi_os_printf("%32s", (char *)buffer.pointer); + (void)acpi_ns_dump_one_object(obj_handle, nesting_level, &info, + NULL); + ACPI_FREE(buffer.pointer); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_find_name_in_namespace + * + * PARAMETERS: name_arg - The 4-character ACPI name to find. + * wildcards are supported. + * + * RETURN: None + * + * DESCRIPTION: Search the namespace for a given name (with wildcards) + * + ******************************************************************************/ + +acpi_status acpi_db_find_name_in_namespace(char *name_arg) +{ + char acpi_name[5] = "____"; + char *acpi_name_ptr = acpi_name; + + if (strlen(name_arg) > ACPI_NAME_SIZE) { + acpi_os_printf("Name must be no longer than 4 characters\n"); + return (AE_OK); + } + + /* Pad out name with underscores as necessary to create a 4-char name */ + + acpi_ut_strupr(name_arg); + while (*name_arg) { + *acpi_name_ptr = *name_arg; + acpi_name_ptr++; + name_arg++; + } + + /* Walk the namespace from the root */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_db_walk_and_match_name, + NULL, acpi_name, NULL); + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_walk_for_predefined_names + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Detect and display predefined ACPI names (names that start with + * an underscore) + * + ******************************************************************************/ + +static acpi_status +acpi_db_walk_for_predefined_names(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + u32 *count = (u32 *)context; + const union acpi_predefined_info *predefined; + const union acpi_predefined_info *package = NULL; + char *pathname; + char string_buffer[48]; + + predefined = acpi_ut_match_predefined_method(node->name.ascii); + if (!predefined) { + return (AE_OK); + } + + pathname = acpi_ns_get_external_pathname(node); + if (!pathname) { + return (AE_OK); + } + + /* If method returns a package, the info is in the next table entry */ + + if (predefined->info.expected_btypes & ACPI_RTYPE_PACKAGE) { + package = predefined + 1; + } + + acpi_ut_get_expected_return_types(string_buffer, + predefined->info.expected_btypes); + + acpi_os_printf("%-32s Arguments %X, Return Types: %s", pathname, + METHOD_GET_ARG_COUNT(predefined->info.argument_list), + string_buffer); + + if (package) { + acpi_os_printf(" (PkgType %2.2X, ObjType %2.2X, Count %2.2X)", + package->ret_info.type, + package->ret_info.object_type1, + package->ret_info.count1); + } + + acpi_os_printf("\n"); + + /* Check that the declared argument count matches the ACPI spec */ + + acpi_ns_check_acpi_compliance(pathname, node, predefined); + + ACPI_FREE(pathname); + (*count)++; + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_check_predefined_names + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Validate all predefined names in the namespace + * + ******************************************************************************/ + +void acpi_db_check_predefined_names(void) +{ + u32 count = 0; + + /* Search all nodes in namespace */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + acpi_db_walk_for_predefined_names, NULL, + (void *)&count, NULL); + + acpi_os_printf("Found %u predefined names in the namespace\n", count); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_walk_for_object_counts + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Display short info about objects in the namespace + * + ******************************************************************************/ + +static acpi_status +acpi_db_walk_for_object_counts(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_object_info *info = (struct acpi_object_info *)context; + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + + if (node->type > ACPI_TYPE_NS_NODE_MAX) { + acpi_os_printf("[%4.4s]: Unknown object type %X\n", + node->name.ascii, node->type); + } else { + info->types[node->type]++; + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_walk_for_specific_objects + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Display short info about objects in the namespace + * + ******************************************************************************/ + +static acpi_status +acpi_db_walk_for_specific_objects(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_walk_info *info = (struct acpi_walk_info *)context; + struct acpi_buffer buffer; + acpi_status status; + + info->count++; + + /* Get and display the full pathname to this object */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could Not get pathname for object %p\n", + obj_handle); + return (AE_OK); + } + + acpi_os_printf("%32s", (char *)buffer.pointer); + ACPI_FREE(buffer.pointer); + + /* Dump short info about the object */ + + (void)acpi_ns_dump_one_object(obj_handle, nesting_level, info, NULL); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_objects + * + * PARAMETERS: obj_type_arg - Type of object to display + * display_count_arg - Max depth to display + * + * RETURN: None + * + * DESCRIPTION: Display objects in the namespace of the requested type + * + ******************************************************************************/ + +acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg) +{ + struct acpi_walk_info info; + acpi_object_type type; + struct acpi_object_info *object_info; + u32 i; + u32 total_objects = 0; + + /* No argument means display summary/count of all object types */ + + if (!obj_type_arg) { + object_info = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_object_info)); + + /* Walk the namespace from the root */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + acpi_db_walk_for_object_counts, NULL, + (void *)object_info, NULL); + + acpi_os_printf("\nSummary of namespace objects:\n\n"); + + for (i = 0; i < ACPI_TOTAL_TYPES; i++) { + acpi_os_printf("%8u %s\n", object_info->types[i], + acpi_ut_get_type_name(i)); + + total_objects += object_info->types[i]; + } + + acpi_os_printf("\n%8u Total namespace objects\n\n", + total_objects); + + ACPI_FREE(object_info); + return (AE_OK); + } + + /* Get the object type */ + + type = acpi_db_match_argument(obj_type_arg, acpi_db_object_types); + if (type == ACPI_TYPE_NOT_FOUND) { + acpi_os_printf("Invalid or unsupported argument\n"); + return (AE_OK); + } + + acpi_db_set_output_destination(ACPI_DB_DUPLICATE_OUTPUT); + acpi_os_printf + ("Objects of type [%s] defined in the current ACPI Namespace:\n", + acpi_ut_get_type_name(type)); + + acpi_db_set_output_destination(ACPI_DB_REDIRECTABLE_OUTPUT); + + info.count = 0; + info.owner_id = ACPI_OWNER_ID_MAX; + info.debug_level = ACPI_UINT32_MAX; + info.display_type = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT; + + /* Walk the namespace from the root */ + + (void)acpi_walk_namespace(type, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, + acpi_db_walk_for_specific_objects, NULL, + (void *)&info, NULL); + + acpi_os_printf + ("\nFound %u objects of type [%s] in the current ACPI Namespace\n", + info.count, acpi_ut_get_type_name(type)); + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_integrity_walk + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Examine one NS node for valid values. + * + ******************************************************************************/ + +static acpi_status +acpi_db_integrity_walk(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_integrity_info *info = + (struct acpi_integrity_info *)context; + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + union acpi_operand_object *object; + u8 alias = TRUE; + + info->nodes++; + + /* Verify the NS node, and dereference aliases */ + + while (alias) { + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { + acpi_os_printf + ("Invalid Descriptor Type for Node %p [%s] - " + "is %2.2X should be %2.2X\n", node, + acpi_ut_get_descriptor_name(node), + ACPI_GET_DESCRIPTOR_TYPE(node), + ACPI_DESC_TYPE_NAMED); + return (AE_OK); + } + + if ((node->type == ACPI_TYPE_LOCAL_ALIAS) || + (node->type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { + node = (struct acpi_namespace_node *)node->object; + } else { + alias = FALSE; + } + } + + if (node->type > ACPI_TYPE_LOCAL_MAX) { + acpi_os_printf("Invalid Object Type for Node %p, Type = %X\n", + node, node->type); + return (AE_OK); + } + + if (!acpi_ut_valid_acpi_name(node->name.ascii)) { + acpi_os_printf("Invalid AcpiName for Node %p\n", node); + return (AE_OK); + } + + object = acpi_ns_get_attached_object(node); + if (object) { + info->objects++; + if (ACPI_GET_DESCRIPTOR_TYPE(object) != ACPI_DESC_TYPE_OPERAND) { + acpi_os_printf + ("Invalid Descriptor Type for Object %p [%s]\n", + object, acpi_ut_get_descriptor_name(object)); + } + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_check_integrity + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Check entire namespace for data structure integrity + * + ******************************************************************************/ + +void acpi_db_check_integrity(void) +{ + struct acpi_integrity_info info = { 0, 0 }; + + /* Search all nodes in namespace */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_db_integrity_walk, NULL, + (void *)&info, NULL); + + acpi_os_printf("Verified %u namespace nodes with %u Objects\n", + info.nodes, info.objects); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_walk_for_references + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Check if this namespace object refers to the target object + * that is passed in as the context value. + * + * Note: Currently doesn't check subobjects within the Node's object + * + ******************************************************************************/ + +static acpi_status +acpi_db_walk_for_references(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + union acpi_operand_object *obj_desc = + (union acpi_operand_object *)context; + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + + /* Check for match against the namespace node itself */ + + if (node == (void *)obj_desc) { + acpi_os_printf("Object is a Node [%4.4s]\n", + acpi_ut_get_node_name(node)); + } + + /* Check for match against the object attached to the node */ + + if (acpi_ns_get_attached_object(node) == obj_desc) { + acpi_os_printf("Reference at Node->Object %p [%4.4s]\n", + node, acpi_ut_get_node_name(node)); + } + + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_find_references + * + * PARAMETERS: object_arg - String with hex value of the object + * + * RETURN: None + * + * DESCRIPTION: Search namespace for all references to the input object + * + ******************************************************************************/ + +void acpi_db_find_references(char *object_arg) +{ + union acpi_operand_object *obj_desc; + acpi_size address; + + /* Convert string to object pointer */ + + address = strtoul(object_arg, NULL, 16); + obj_desc = ACPI_TO_POINTER(address); + + /* Search all nodes in namespace */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_db_walk_for_references, + NULL, (void *)obj_desc, NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_bus_walk + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Display info about device objects that have a corresponding + * _PRT method. + * + ******************************************************************************/ + +static acpi_status +acpi_db_bus_walk(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + acpi_status status; + struct acpi_buffer buffer; + struct acpi_namespace_node *temp_node; + struct acpi_device_info *info; + u32 i; + + if ((node->type != ACPI_TYPE_DEVICE) && + (node->type != ACPI_TYPE_PROCESSOR)) { + return (AE_OK); + } + + /* Exit if there is no _PRT under this device */ + + status = acpi_get_handle(node, METHOD_NAME__PRT, + ACPI_CAST_PTR(acpi_handle, &temp_node)); + if (ACPI_FAILURE(status)) { + return (AE_OK); + } + + /* Get the full path to this device object */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could Not get pathname for object %p\n", + obj_handle); + return (AE_OK); + } + + status = acpi_get_object_info(obj_handle, &info); + if (ACPI_FAILURE(status)) { + return (AE_OK); + } + + /* Display the full path */ + + acpi_os_printf("%-32s Type %X", (char *)buffer.pointer, node->type); + ACPI_FREE(buffer.pointer); + + if (info->flags & ACPI_PCI_ROOT_BRIDGE) { + acpi_os_printf(" - Is PCI Root Bridge"); + } + acpi_os_printf("\n"); + + /* _PRT info */ + + acpi_os_printf("_PRT: %p\n", temp_node); + + /* Dump _ADR, _HID, _UID, _CID */ + + if (info->valid & ACPI_VALID_ADR) { + acpi_os_printf("_ADR: %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(info->address)); + } else { + acpi_os_printf("_ADR: <Not Present>\n"); + } + + if (info->valid & ACPI_VALID_HID) { + acpi_os_printf("_HID: %s\n", info->hardware_id.string); + } else { + acpi_os_printf("_HID: <Not Present>\n"); + } + + if (info->valid & ACPI_VALID_UID) { + acpi_os_printf("_UID: %s\n", info->unique_id.string); + } else { + acpi_os_printf("_UID: <Not Present>\n"); + } + + if (info->valid & ACPI_VALID_CID) { + for (i = 0; i < info->compatible_id_list.count; i++) { + acpi_os_printf("_CID: %s\n", + info->compatible_id_list.ids[i].string); + } + } else { + acpi_os_printf("_CID: <Not Present>\n"); + } + + ACPI_FREE(info); + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_get_bus_info + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Display info about system busses. + * + ******************************************************************************/ + +void acpi_db_get_bus_info(void) +{ + /* Search all nodes in namespace */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_db_bus_walk, NULL, NULL, + NULL); +} diff --git a/drivers/acpi/acpica/dbobject.c b/drivers/acpi/acpica/dbobject.c new file mode 100644 index 000000000000..116f6db8c2ed --- /dev/null +++ b/drivers/acpi/acpica/dbobject.c @@ -0,0 +1,533 @@ +/******************************************************************************* + * + * Module Name: dbobject - ACPI object decode and display + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acnamesp.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbobject") + +/* Local prototypes */ +static void acpi_db_decode_node(struct acpi_namespace_node *node); + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_method_info + * + * PARAMETERS: status - Method execution status + * walk_state - Current state of the parse tree walk + * + * RETURN: None + * + * DESCRIPTION: Called when a method has been aborted because of an error. + * Dumps the method execution stack, and the method locals/args, + * and disassembles the AML opcode that failed. + * + ******************************************************************************/ + +void +acpi_db_dump_method_info(acpi_status status, struct acpi_walk_state *walk_state) +{ + struct acpi_thread_state *thread; + + /* Ignore control codes, they are not errors */ + + if ((status & AE_CODE_MASK) == AE_CODE_CONTROL) { + return; + } + + /* We may be executing a deferred opcode */ + + if (walk_state->deferred_node) { + acpi_os_printf("Executing subtree for Buffer/Package/Region\n"); + return; + } + + /* + * If there is no Thread, we are not actually executing a method. + * This can happen when the iASL compiler calls the interpreter + * to perform constant folding. + */ + thread = walk_state->thread; + if (!thread) { + return; + } + + /* Display the method locals and arguments */ + + acpi_os_printf("\n"); + acpi_db_decode_locals(walk_state); + acpi_os_printf("\n"); + acpi_db_decode_arguments(walk_state); + acpi_os_printf("\n"); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_decode_internal_object + * + * PARAMETERS: obj_desc - Object to be displayed + * + * RETURN: None + * + * DESCRIPTION: Short display of an internal object. Numbers/Strings/Buffers. + * + ******************************************************************************/ + +void acpi_db_decode_internal_object(union acpi_operand_object *obj_desc) +{ + u32 i; + + if (!obj_desc) { + acpi_os_printf(" Uninitialized"); + return; + } + + if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { + acpi_os_printf(" %p [%s]", obj_desc, + acpi_ut_get_descriptor_name(obj_desc)); + return; + } + + acpi_os_printf(" %s", acpi_ut_get_object_type_name(obj_desc)); + + switch (obj_desc->common.type) { + case ACPI_TYPE_INTEGER: + + acpi_os_printf(" %8.8X%8.8X", + ACPI_FORMAT_UINT64(obj_desc->integer.value)); + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf("(%u) \"%.24s", + obj_desc->string.length, + obj_desc->string.pointer); + + if (obj_desc->string.length > 24) { + acpi_os_printf("..."); + } else { + acpi_os_printf("\""); + } + break; + + case ACPI_TYPE_BUFFER: + + acpi_os_printf("(%u)", obj_desc->buffer.length); + for (i = 0; (i < 8) && (i < obj_desc->buffer.length); i++) { + acpi_os_printf(" %2.2X", obj_desc->buffer.pointer[i]); + } + break; + + default: + + acpi_os_printf(" %p", obj_desc); + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_decode_node + * + * PARAMETERS: node - Object to be displayed + * + * RETURN: None + * + * DESCRIPTION: Short display of a namespace node + * + ******************************************************************************/ + +static void acpi_db_decode_node(struct acpi_namespace_node *node) +{ + + acpi_os_printf("<Node> Name %4.4s", + acpi_ut_get_node_name(node)); + + if (node->flags & ANOBJ_METHOD_ARG) { + acpi_os_printf(" [Method Arg]"); + } + if (node->flags & ANOBJ_METHOD_LOCAL) { + acpi_os_printf(" [Method Local]"); + } + + switch (node->type) { + + /* These types have no attached object */ + + case ACPI_TYPE_DEVICE: + + acpi_os_printf(" Device"); + break; + + case ACPI_TYPE_THERMAL: + + acpi_os_printf(" Thermal Zone"); + break; + + default: + + acpi_db_decode_internal_object(acpi_ns_get_attached_object + (node)); + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_internal_object + * + * PARAMETERS: obj_desc - Object to be displayed + * walk_state - Current walk state + * + * RETURN: None + * + * DESCRIPTION: Short display of an internal object + * + ******************************************************************************/ + +void +acpi_db_display_internal_object(union acpi_operand_object *obj_desc, + struct acpi_walk_state *walk_state) +{ + u8 type; + + acpi_os_printf("%p ", obj_desc); + + if (!obj_desc) { + acpi_os_printf("<Null Object>\n"); + return; + } + + /* Decode the object type */ + + switch (ACPI_GET_DESCRIPTOR_TYPE(obj_desc)) { + case ACPI_DESC_TYPE_PARSER: + + acpi_os_printf("<Parser> "); + break; + + case ACPI_DESC_TYPE_NAMED: + + acpi_db_decode_node((struct acpi_namespace_node *)obj_desc); + break; + + case ACPI_DESC_TYPE_OPERAND: + + type = obj_desc->common.type; + if (type > ACPI_TYPE_LOCAL_MAX) { + acpi_os_printf(" Type %X [Invalid Type]", (u32)type); + return; + } + + /* Decode the ACPI object type */ + + switch (obj_desc->common.type) { + case ACPI_TYPE_LOCAL_REFERENCE: + + acpi_os_printf("[%s] ", + acpi_ut_get_reference_name(obj_desc)); + + /* Decode the refererence */ + + switch (obj_desc->reference.class) { + case ACPI_REFCLASS_LOCAL: + + acpi_os_printf("%X ", + obj_desc->reference.value); + if (walk_state) { + obj_desc = walk_state->local_variables + [obj_desc->reference.value].object; + acpi_os_printf("%p", obj_desc); + acpi_db_decode_internal_object + (obj_desc); + } + break; + + case ACPI_REFCLASS_ARG: + + acpi_os_printf("%X ", + obj_desc->reference.value); + if (walk_state) { + obj_desc = walk_state->arguments + [obj_desc->reference.value].object; + acpi_os_printf("%p", obj_desc); + acpi_db_decode_internal_object + (obj_desc); + } + break; + + case ACPI_REFCLASS_INDEX: + + switch (obj_desc->reference.target_type) { + case ACPI_TYPE_BUFFER_FIELD: + + acpi_os_printf("%p", + obj_desc->reference. + object); + acpi_db_decode_internal_object + (obj_desc->reference.object); + break; + + case ACPI_TYPE_PACKAGE: + + acpi_os_printf("%p", + obj_desc->reference. + where); + if (!obj_desc->reference.where) { + acpi_os_printf + (" Uninitialized WHERE pointer"); + } else { + acpi_db_decode_internal_object(* + (obj_desc-> + reference. + where)); + } + break; + + default: + + acpi_os_printf + ("Unknown index target type"); + break; + } + break; + + case ACPI_REFCLASS_REFOF: + + if (!obj_desc->reference.object) { + acpi_os_printf + ("Uninitialized reference subobject pointer"); + break; + } + + /* Reference can be to a Node or an Operand object */ + + switch (ACPI_GET_DESCRIPTOR_TYPE + (obj_desc->reference.object)) { + case ACPI_DESC_TYPE_NAMED: + + acpi_db_decode_node(obj_desc->reference. + object); + break; + + case ACPI_DESC_TYPE_OPERAND: + + acpi_db_decode_internal_object + (obj_desc->reference.object); + break; + + default: + break; + } + break; + + case ACPI_REFCLASS_NAME: + + acpi_db_decode_node(obj_desc->reference.node); + break; + + case ACPI_REFCLASS_DEBUG: + case ACPI_REFCLASS_TABLE: + + acpi_os_printf("\n"); + break; + + default: /* Unknown reference class */ + + acpi_os_printf("%2.2X\n", + obj_desc->reference.class); + break; + } + break; + + default: + + acpi_os_printf("<Obj> "); + acpi_db_decode_internal_object(obj_desc); + break; + } + break; + + default: + + acpi_os_printf("<Not a valid ACPI Object Descriptor> [%s]", + acpi_ut_get_descriptor_name(obj_desc)); + break; + } + + acpi_os_printf("\n"); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_decode_locals + * + * PARAMETERS: walk_state - State for current method + * + * RETURN: None + * + * DESCRIPTION: Display all locals for the currently running control method + * + ******************************************************************************/ + +void acpi_db_decode_locals(struct acpi_walk_state *walk_state) +{ + u32 i; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + u8 display_locals = FALSE; + + obj_desc = walk_state->method_desc; + node = walk_state->method_node; + + if (!node) { + acpi_os_printf + ("No method node (Executing subtree for buffer or opregion)\n"); + return; + } + + if (node->type != ACPI_TYPE_METHOD) { + acpi_os_printf("Executing subtree for Buffer/Package/Region\n"); + return; + } + + /* Are any locals actually set? */ + + for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) { + obj_desc = walk_state->local_variables[i].object; + if (obj_desc) { + display_locals = TRUE; + break; + } + } + + /* If any are set, only display the ones that are set */ + + if (display_locals) { + acpi_os_printf + ("\nInitialized Local Variables for method [%4.4s]:\n", + acpi_ut_get_node_name(node)); + + for (i = 0; i < ACPI_METHOD_NUM_LOCALS; i++) { + obj_desc = walk_state->local_variables[i].object; + if (obj_desc) { + acpi_os_printf(" Local%X: ", i); + acpi_db_display_internal_object(obj_desc, + walk_state); + } + } + } else { + acpi_os_printf + ("No Local Variables are initialized for method [%4.4s]\n", + acpi_ut_get_node_name(node)); + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_decode_arguments + * + * PARAMETERS: walk_state - State for current method + * + * RETURN: None + * + * DESCRIPTION: Display all arguments for the currently running control method + * + ******************************************************************************/ + +void acpi_db_decode_arguments(struct acpi_walk_state *walk_state) +{ + u32 i; + union acpi_operand_object *obj_desc; + struct acpi_namespace_node *node; + u8 display_args = FALSE; + + node = walk_state->method_node; + obj_desc = walk_state->method_desc; + + if (!node) { + acpi_os_printf + ("No method node (Executing subtree for buffer or opregion)\n"); + return; + } + + if (node->type != ACPI_TYPE_METHOD) { + acpi_os_printf("Executing subtree for Buffer/Package/Region\n"); + return; + } + + /* Are any arguments actually set? */ + + for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) { + obj_desc = walk_state->arguments[i].object; + if (obj_desc) { + display_args = TRUE; + break; + } + } + + /* If any are set, only display the ones that are set */ + + if (display_args) { + acpi_os_printf("Initialized Arguments for Method [%4.4s]: " + "(%X arguments defined for method invocation)\n", + acpi_ut_get_node_name(node), + obj_desc->method.param_count); + + for (i = 0; i < ACPI_METHOD_NUM_ARGS; i++) { + obj_desc = walk_state->arguments[i].object; + if (obj_desc) { + acpi_os_printf(" Arg%u: ", i); + acpi_db_display_internal_object(obj_desc, + walk_state); + } + } + } else { + acpi_os_printf + ("No Arguments are initialized for method [%4.4s]\n", + acpi_ut_get_node_name(node)); + } +} diff --git a/drivers/acpi/acpica/dbstats.c b/drivers/acpi/acpica/dbstats.c new file mode 100644 index 000000000000..4ba0a20811eb --- /dev/null +++ b/drivers/acpi/acpica/dbstats.c @@ -0,0 +1,546 @@ +/******************************************************************************* + * + * Module Name: dbstats - Generation and display of ACPI table statistics + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" +#include "acnamesp.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbstats") + +/* Local prototypes */ +static void acpi_db_count_namespace_objects(void); + +static void acpi_db_enumerate_object(union acpi_operand_object *obj_desc); + +static acpi_status +acpi_db_classify_one_object(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +#if defined ACPI_DBG_TRACK_ALLOCATIONS || defined ACPI_USE_LOCAL_CACHE +static void acpi_db_list_info(struct acpi_memory_list *list); +#endif + +/* + * Statistics subcommands + */ +static struct acpi_db_argument_info acpi_db_stat_types[] = { + {"ALLOCATIONS"}, + {"OBJECTS"}, + {"MEMORY"}, + {"MISC"}, + {"TABLES"}, + {"SIZES"}, + {"STACK"}, + {NULL} /* Must be null terminated */ +}; + +#define CMD_STAT_ALLOCATIONS 0 +#define CMD_STAT_OBJECTS 1 +#define CMD_STAT_MEMORY 2 +#define CMD_STAT_MISC 3 +#define CMD_STAT_TABLES 4 +#define CMD_STAT_SIZES 5 +#define CMD_STAT_STACK 6 + +#if defined ACPI_DBG_TRACK_ALLOCATIONS || defined ACPI_USE_LOCAL_CACHE +/******************************************************************************* + * + * FUNCTION: acpi_db_list_info + * + * PARAMETERS: list - Memory list/cache to be displayed + * + * RETURN: None + * + * DESCRIPTION: Display information about the input memory list or cache. + * + ******************************************************************************/ + +static void acpi_db_list_info(struct acpi_memory_list *list) +{ +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + u32 outstanding; +#endif + + acpi_os_printf("\n%s\n", list->list_name); + + /* max_depth > 0 indicates a cache object */ + + if (list->max_depth > 0) { + acpi_os_printf + (" Cache: [Depth MaxD Avail Size] " + "%8.2X %8.2X %8.2X %8.2X\n", list->current_depth, + list->max_depth, list->max_depth - list->current_depth, + (list->current_depth * list->object_size)); + } +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + if (list->max_depth > 0) { + acpi_os_printf + (" Cache: [Requests Hits Misses ObjSize] " + "%8.2X %8.2X %8.2X %8.2X\n", list->requests, list->hits, + list->requests - list->hits, list->object_size); + } + + outstanding = acpi_db_get_cache_info(list); + + if (list->object_size) { + acpi_os_printf + (" Mem: [Alloc Free Max CurSize Outstanding] " + "%8.2X %8.2X %8.2X %8.2X %8.2X\n", list->total_allocated, + list->total_freed, list->max_occupied, + outstanding * list->object_size, outstanding); + } else { + acpi_os_printf + (" Mem: [Alloc Free Max CurSize Outstanding Total] " + "%8.2X %8.2X %8.2X %8.2X %8.2X %8.2X\n", + list->total_allocated, list->total_freed, + list->max_occupied, list->current_total_size, outstanding, + list->total_size); + } +#endif +} +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_db_enumerate_object + * + * PARAMETERS: obj_desc - Object to be counted + * + * RETURN: None + * + * DESCRIPTION: Add this object to the global counts, by object type. + * Limited recursion handles subobjects and packages, and this + * is probably acceptable within the AML debugger only. + * + ******************************************************************************/ + +static void acpi_db_enumerate_object(union acpi_operand_object *obj_desc) +{ + u32 i; + + if (!obj_desc) { + return; + } + + /* Enumerate this object first */ + + acpi_gbl_num_objects++; + + if (obj_desc->common.type > ACPI_TYPE_NS_NODE_MAX) { + acpi_gbl_obj_type_count_misc++; + } else { + acpi_gbl_obj_type_count[obj_desc->common.type]++; + } + + /* Count the sub-objects */ + + switch (obj_desc->common.type) { + case ACPI_TYPE_PACKAGE: + + for (i = 0; i < obj_desc->package.count; i++) { + acpi_db_enumerate_object(obj_desc->package.elements[i]); + } + break; + + case ACPI_TYPE_DEVICE: + + acpi_db_enumerate_object(obj_desc->device.notify_list[0]); + acpi_db_enumerate_object(obj_desc->device.notify_list[1]); + acpi_db_enumerate_object(obj_desc->device.handler); + break; + + case ACPI_TYPE_BUFFER_FIELD: + + if (acpi_ns_get_secondary_object(obj_desc)) { + acpi_gbl_obj_type_count[ACPI_TYPE_BUFFER_FIELD]++; + } + break; + + case ACPI_TYPE_REGION: + + acpi_gbl_obj_type_count[ACPI_TYPE_LOCAL_REGION_FIELD]++; + acpi_db_enumerate_object(obj_desc->region.handler); + break; + + case ACPI_TYPE_POWER: + + acpi_db_enumerate_object(obj_desc->power_resource. + notify_list[0]); + acpi_db_enumerate_object(obj_desc->power_resource. + notify_list[1]); + break; + + case ACPI_TYPE_PROCESSOR: + + acpi_db_enumerate_object(obj_desc->processor.notify_list[0]); + acpi_db_enumerate_object(obj_desc->processor.notify_list[1]); + acpi_db_enumerate_object(obj_desc->processor.handler); + break; + + case ACPI_TYPE_THERMAL: + + acpi_db_enumerate_object(obj_desc->thermal_zone.notify_list[0]); + acpi_db_enumerate_object(obj_desc->thermal_zone.notify_list[1]); + acpi_db_enumerate_object(obj_desc->thermal_zone.handler); + break; + + default: + + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_classify_one_object + * + * PARAMETERS: Callback for walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Enumerate both the object descriptor (including subobjects) and + * the parent namespace node. + * + ******************************************************************************/ + +static acpi_status +acpi_db_classify_one_object(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_namespace_node *node; + union acpi_operand_object *obj_desc; + u32 type; + + acpi_gbl_num_nodes++; + + node = (struct acpi_namespace_node *)obj_handle; + obj_desc = acpi_ns_get_attached_object(node); + + acpi_db_enumerate_object(obj_desc); + + type = node->type; + if (type > ACPI_TYPE_NS_NODE_MAX) { + acpi_gbl_node_type_count_misc++; + } else { + acpi_gbl_node_type_count[type]++; + } + + return (AE_OK); + +#ifdef ACPI_FUTURE_IMPLEMENTATION + + /* TBD: These need to be counted during the initial parsing phase */ + + if (acpi_ps_is_named_op(op->opcode)) { + num_nodes++; + } + + if (is_method) { + num_method_elements++; + } + + num_grammar_elements++; + op = acpi_ps_get_depth_next(root, op); + + size_of_parse_tree = (num_grammar_elements - num_method_elements) * + (u32)sizeof(union acpi_parse_object); + size_of_method_trees = + num_method_elements * (u32)sizeof(union acpi_parse_object); + size_of_node_entries = + num_nodes * (u32)sizeof(struct acpi_namespace_node); + size_of_acpi_objects = + num_nodes * (u32)sizeof(union acpi_operand_object); +#endif +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_count_namespace_objects + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Count and classify the entire namespace, including all + * namespace nodes and attached objects. + * + ******************************************************************************/ + +static void acpi_db_count_namespace_objects(void) +{ + u32 i; + + acpi_gbl_num_nodes = 0; + acpi_gbl_num_objects = 0; + + acpi_gbl_obj_type_count_misc = 0; + for (i = 0; i < (ACPI_TYPE_NS_NODE_MAX - 1); i++) { + acpi_gbl_obj_type_count[i] = 0; + acpi_gbl_node_type_count[i] = 0; + } + + (void)acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, FALSE, + acpi_db_classify_one_object, NULL, NULL, + NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_display_statistics + * + * PARAMETERS: type_arg - Subcommand + * + * RETURN: Status + * + * DESCRIPTION: Display various statistics + * + ******************************************************************************/ + +acpi_status acpi_db_display_statistics(char *type_arg) +{ + u32 i; + u32 temp; + + acpi_ut_strupr(type_arg); + temp = acpi_db_match_argument(type_arg, acpi_db_stat_types); + if (temp == ACPI_TYPE_NOT_FOUND) { + acpi_os_printf("Invalid or unsupported argument\n"); + return (AE_OK); + } + + switch (temp) { + case CMD_STAT_ALLOCATIONS: + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + acpi_ut_dump_allocation_info(); +#endif + break; + + case CMD_STAT_TABLES: + + acpi_os_printf("ACPI Table Information (not implemented):\n\n"); + break; + + case CMD_STAT_OBJECTS: + + acpi_db_count_namespace_objects(); + + acpi_os_printf + ("\nObjects defined in the current namespace:\n\n"); + + acpi_os_printf("%16.16s %10.10s %10.10s\n", + "ACPI_TYPE", "NODES", "OBJECTS"); + + for (i = 0; i < ACPI_TYPE_NS_NODE_MAX; i++) { + acpi_os_printf("%16.16s % 10ld% 10ld\n", + acpi_ut_get_type_name(i), + acpi_gbl_node_type_count[i], + acpi_gbl_obj_type_count[i]); + } + acpi_os_printf("%16.16s % 10ld% 10ld\n", "Misc/Unknown", + acpi_gbl_node_type_count_misc, + acpi_gbl_obj_type_count_misc); + + acpi_os_printf("%16.16s % 10ld% 10ld\n", "TOTALS:", + acpi_gbl_num_nodes, acpi_gbl_num_objects); + break; + + case CMD_STAT_MEMORY: + +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + acpi_os_printf + ("\n----Object Statistics (all in hex)---------\n"); + + acpi_db_list_info(acpi_gbl_global_list); + acpi_db_list_info(acpi_gbl_ns_node_list); +#endif + +#ifdef ACPI_USE_LOCAL_CACHE + acpi_os_printf + ("\n----Cache Statistics (all in hex)---------\n"); + acpi_db_list_info(acpi_gbl_operand_cache); + acpi_db_list_info(acpi_gbl_ps_node_cache); + acpi_db_list_info(acpi_gbl_ps_node_ext_cache); + acpi_db_list_info(acpi_gbl_state_cache); +#endif + + break; + + case CMD_STAT_MISC: + + acpi_os_printf("\nMiscellaneous Statistics:\n\n"); + acpi_os_printf("Calls to AcpiPsFind:.. ........% 7ld\n", + acpi_gbl_ps_find_count); + acpi_os_printf("Calls to AcpiNsLookup:..........% 7ld\n", + acpi_gbl_ns_lookup_count); + + acpi_os_printf("\n"); + + acpi_os_printf("Mutex usage:\n\n"); + for (i = 0; i < ACPI_NUM_MUTEX; i++) { + acpi_os_printf("%-28s: % 7ld\n", + acpi_ut_get_mutex_name(i), + acpi_gbl_mutex_info[i].use_count); + } + break; + + case CMD_STAT_SIZES: + + acpi_os_printf("\nInternal object sizes:\n\n"); + + acpi_os_printf("Common %3d\n", + sizeof(struct acpi_object_common)); + acpi_os_printf("Number %3d\n", + sizeof(struct acpi_object_integer)); + acpi_os_printf("String %3d\n", + sizeof(struct acpi_object_string)); + acpi_os_printf("Buffer %3d\n", + sizeof(struct acpi_object_buffer)); + acpi_os_printf("Package %3d\n", + sizeof(struct acpi_object_package)); + acpi_os_printf("BufferField %3d\n", + sizeof(struct acpi_object_buffer_field)); + acpi_os_printf("Device %3d\n", + sizeof(struct acpi_object_device)); + acpi_os_printf("Event %3d\n", + sizeof(struct acpi_object_event)); + acpi_os_printf("Method %3d\n", + sizeof(struct acpi_object_method)); + acpi_os_printf("Mutex %3d\n", + sizeof(struct acpi_object_mutex)); + acpi_os_printf("Region %3d\n", + sizeof(struct acpi_object_region)); + acpi_os_printf("PowerResource %3d\n", + sizeof(struct acpi_object_power_resource)); + acpi_os_printf("Processor %3d\n", + sizeof(struct acpi_object_processor)); + acpi_os_printf("ThermalZone %3d\n", + sizeof(struct acpi_object_thermal_zone)); + acpi_os_printf("RegionField %3d\n", + sizeof(struct acpi_object_region_field)); + acpi_os_printf("BankField %3d\n", + sizeof(struct acpi_object_bank_field)); + acpi_os_printf("IndexField %3d\n", + sizeof(struct acpi_object_index_field)); + acpi_os_printf("Reference %3d\n", + sizeof(struct acpi_object_reference)); + acpi_os_printf("Notify %3d\n", + sizeof(struct acpi_object_notify_handler)); + acpi_os_printf("AddressSpace %3d\n", + sizeof(struct acpi_object_addr_handler)); + acpi_os_printf("Extra %3d\n", + sizeof(struct acpi_object_extra)); + acpi_os_printf("Data %3d\n", + sizeof(struct acpi_object_data)); + + acpi_os_printf("\n"); + + acpi_os_printf("ParseObject %3d\n", + sizeof(struct acpi_parse_obj_common)); + acpi_os_printf("ParseObjectNamed %3d\n", + sizeof(struct acpi_parse_obj_named)); + acpi_os_printf("ParseObjectAsl %3d\n", + sizeof(struct acpi_parse_obj_asl)); + acpi_os_printf("OperandObject %3d\n", + sizeof(union acpi_operand_object)); + acpi_os_printf("NamespaceNode %3d\n", + sizeof(struct acpi_namespace_node)); + acpi_os_printf("AcpiObject %3d\n", + sizeof(union acpi_object)); + + acpi_os_printf("\n"); + + acpi_os_printf("Generic State %3d\n", + sizeof(union acpi_generic_state)); + acpi_os_printf("Common State %3d\n", + sizeof(struct acpi_common_state)); + acpi_os_printf("Control State %3d\n", + sizeof(struct acpi_control_state)); + acpi_os_printf("Update State %3d\n", + sizeof(struct acpi_update_state)); + acpi_os_printf("Scope State %3d\n", + sizeof(struct acpi_scope_state)); + acpi_os_printf("Parse Scope %3d\n", + sizeof(struct acpi_pscope_state)); + acpi_os_printf("Package State %3d\n", + sizeof(struct acpi_pkg_state)); + acpi_os_printf("Thread State %3d\n", + sizeof(struct acpi_thread_state)); + acpi_os_printf("Result Values %3d\n", + sizeof(struct acpi_result_values)); + acpi_os_printf("Notify Info %3d\n", + sizeof(struct acpi_notify_info)); + break; + + case CMD_STAT_STACK: +#if defined(ACPI_DEBUG_OUTPUT) + + temp = + (u32)ACPI_PTR_DIFF(acpi_gbl_entry_stack_pointer, + acpi_gbl_lowest_stack_pointer); + + acpi_os_printf("\nSubsystem Stack Usage:\n\n"); + acpi_os_printf("Entry Stack Pointer %p\n", + acpi_gbl_entry_stack_pointer); + acpi_os_printf("Lowest Stack Pointer %p\n", + acpi_gbl_lowest_stack_pointer); + acpi_os_printf("Stack Use %X (%u)\n", temp, + temp); + acpi_os_printf("Deepest Procedure Nesting %u\n", + acpi_gbl_deepest_nesting); +#endif + break; + + default: + + break; + } + + acpi_os_printf("\n"); + return (AE_OK); +} diff --git a/drivers/acpi/acpica/dbtest.c b/drivers/acpi/acpica/dbtest.c new file mode 100644 index 000000000000..10ea8bf9b810 --- /dev/null +++ b/drivers/acpi/acpica/dbtest.c @@ -0,0 +1,1057 @@ +/******************************************************************************* + * + * Module Name: dbtest - Various debug-related tests + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acdebug.h" +#include "acnamesp.h" +#include "acpredef.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbtest") + +/* Local prototypes */ +static void acpi_db_test_all_objects(void); + +static acpi_status +acpi_db_test_one_object(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + +static acpi_status +acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length); + +static acpi_status +acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length); + +static acpi_status +acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length); + +static acpi_status +acpi_db_read_from_object(struct acpi_namespace_node *node, + acpi_object_type expected_type, + union acpi_object **value); + +static acpi_status +acpi_db_write_to_object(struct acpi_namespace_node *node, + union acpi_object *value); + +static void acpi_db_evaluate_all_predefined_names(char *count_arg); + +static acpi_status +acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value); + +/* + * Test subcommands + */ +static struct acpi_db_argument_info acpi_db_test_types[] = { + {"OBJECTS"}, + {"PREDEFINED"}, + {NULL} /* Must be null terminated */ +}; + +#define CMD_TEST_OBJECTS 0 +#define CMD_TEST_PREDEFINED 1 + +#define BUFFER_FILL_VALUE 0xFF + +/* + * Support for the special debugger read/write control methods. + * These methods are installed into the current namespace and are + * used to read and write the various namespace objects. The point + * is to force the AML interpreter do all of the work. + */ +#define ACPI_DB_READ_METHOD "\\_T98" +#define ACPI_DB_WRITE_METHOD "\\_T99" + +static acpi_handle read_handle = NULL; +static acpi_handle write_handle = NULL; + +/* ASL Definitions of the debugger read/write control methods */ + +#if 0 +definition_block("ssdt.aml", "SSDT", 2, "Intel", "DEBUG", 0x00000001) +{ + method(_T98, 1, not_serialized) { /* Read */ + return (de_ref_of(arg0)) + } +} + +definition_block("ssdt2.aml", "SSDT", 2, "Intel", "DEBUG", 0x00000001) +{ + method(_T99, 2, not_serialized) { /* Write */ + store(arg1, arg0) + } +} +#endif + +static unsigned char read_method_code[] = { + 0x53, 0x53, 0x44, 0x54, 0x2E, 0x00, 0x00, 0x00, /* 00000000 "SSDT...." */ + 0x02, 0xC9, 0x49, 0x6E, 0x74, 0x65, 0x6C, 0x00, /* 00000008 "..Intel." */ + 0x44, 0x45, 0x42, 0x55, 0x47, 0x00, 0x00, 0x00, /* 00000010 "DEBUG..." */ + 0x01, 0x00, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* 00000018 "....INTL" */ + 0x18, 0x12, 0x13, 0x20, 0x14, 0x09, 0x5F, 0x54, /* 00000020 "... .._T" */ + 0x39, 0x38, 0x01, 0xA4, 0x83, 0x68 /* 00000028 "98...h" */ +}; + +static unsigned char write_method_code[] = { + 0x53, 0x53, 0x44, 0x54, 0x2E, 0x00, 0x00, 0x00, /* 00000000 "SSDT...." */ + 0x02, 0x15, 0x49, 0x6E, 0x74, 0x65, 0x6C, 0x00, /* 00000008 "..Intel." */ + 0x44, 0x45, 0x42, 0x55, 0x47, 0x00, 0x00, 0x00, /* 00000010 "DEBUG..." */ + 0x01, 0x00, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* 00000018 "....INTL" */ + 0x18, 0x12, 0x13, 0x20, 0x14, 0x09, 0x5F, 0x54, /* 00000020 "... .._T" */ + 0x39, 0x39, 0x02, 0x70, 0x69, 0x68 /* 00000028 "99.pih" */ +}; + +/******************************************************************************* + * + * FUNCTION: acpi_db_execute_test + * + * PARAMETERS: type_arg - Subcommand + * + * RETURN: None + * + * DESCRIPTION: Execute various debug tests. + * + * Note: Code is prepared for future expansion of the TEST command. + * + ******************************************************************************/ + +void acpi_db_execute_test(char *type_arg) +{ + u32 temp; + + acpi_ut_strupr(type_arg); + temp = acpi_db_match_argument(type_arg, acpi_db_test_types); + if (temp == ACPI_TYPE_NOT_FOUND) { + acpi_os_printf("Invalid or unsupported argument\n"); + return; + } + + switch (temp) { + case CMD_TEST_OBJECTS: + + acpi_db_test_all_objects(); + break; + + case CMD_TEST_PREDEFINED: + + acpi_db_evaluate_all_predefined_names(NULL); + break; + + default: + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_test_all_objects + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: This test implements the OBJECTS subcommand. It exercises the + * namespace by reading/writing/comparing all data objects such + * as integers, strings, buffers, fields, buffer fields, etc. + * + ******************************************************************************/ + +static void acpi_db_test_all_objects(void) +{ + acpi_status status; + + /* Install the debugger read-object control method if necessary */ + + if (!read_handle) { + status = acpi_install_method(read_method_code); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("%s, Could not install debugger read method\n", + acpi_format_exception(status)); + return; + } + + status = + acpi_get_handle(NULL, ACPI_DB_READ_METHOD, &read_handle); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("Could not obtain handle for debug method %s\n", + ACPI_DB_READ_METHOD); + return; + } + } + + /* Install the debugger write-object control method if necessary */ + + if (!write_handle) { + status = acpi_install_method(write_method_code); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("%s, Could not install debugger write method\n", + acpi_format_exception(status)); + return; + } + + status = + acpi_get_handle(NULL, ACPI_DB_WRITE_METHOD, &write_handle); + if (ACPI_FAILURE(status)) { + acpi_os_printf + ("Could not obtain handle for debug method %s\n", + ACPI_DB_WRITE_METHOD); + return; + } + } + + /* Walk the entire namespace, testing each supported named data object */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, acpi_db_test_one_object, + NULL, NULL, NULL); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_test_one_object + * + * PARAMETERS: acpi_walk_callback + * + * RETURN: Status + * + * DESCRIPTION: Test one namespace object. Supported types are Integer, + * String, Buffer, buffer_field, and field_unit. All other object + * types are simply ignored. + * + * Note: Support for Packages is not implemented. + * + ******************************************************************************/ + +static acpi_status +acpi_db_test_one_object(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_namespace_node *node; + union acpi_operand_object *obj_desc; + union acpi_operand_object *region_obj; + acpi_object_type local_type; + u32 bit_length = 0; + u32 byte_length = 0; + acpi_status status = AE_OK; + + node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + obj_desc = node->object; + + /* + * For the supported types, get the actual bit length or + * byte length. Map the type to one of Integer/String/Buffer. + */ + switch (node->type) { + case ACPI_TYPE_INTEGER: + + /* Integer width is either 32 or 64 */ + + local_type = ACPI_TYPE_INTEGER; + bit_length = acpi_gbl_integer_bit_width; + break; + + case ACPI_TYPE_STRING: + + local_type = ACPI_TYPE_STRING; + byte_length = obj_desc->string.length; + break; + + case ACPI_TYPE_BUFFER: + + local_type = ACPI_TYPE_BUFFER; + byte_length = obj_desc->buffer.length; + bit_length = byte_length * 8; + break; + + case ACPI_TYPE_FIELD_UNIT: + case ACPI_TYPE_BUFFER_FIELD: + case ACPI_TYPE_LOCAL_REGION_FIELD: + case ACPI_TYPE_LOCAL_INDEX_FIELD: + case ACPI_TYPE_LOCAL_BANK_FIELD: + + local_type = ACPI_TYPE_INTEGER; + if (obj_desc) { + /* + * Returned object will be a Buffer if the field length + * is larger than the size of an Integer (32 or 64 bits + * depending on the DSDT version). + */ + bit_length = obj_desc->common_field.bit_length; + byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length); + if (bit_length > acpi_gbl_integer_bit_width) { + local_type = ACPI_TYPE_BUFFER; + } + } + break; + + default: + + /* Ignore all other types */ + + return (AE_OK); + } + + /* Emit the common prefix: Type:Name */ + + acpi_os_printf("%14s: %4.4s", + acpi_ut_get_type_name(node->type), node->name.ascii); + if (!obj_desc) { + acpi_os_printf(" Ignoring, no attached object\n"); + return (AE_OK); + } + + /* + * Check for unsupported region types. Note: acpi_exec simulates + * access to system_memory, system_IO, PCI_Config, and EC. + */ + switch (node->type) { + case ACPI_TYPE_LOCAL_REGION_FIELD: + + region_obj = obj_desc->field.region_obj; + switch (region_obj->region.space_id) { + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + case ACPI_ADR_SPACE_SYSTEM_IO: + case ACPI_ADR_SPACE_PCI_CONFIG: + case ACPI_ADR_SPACE_EC: + + break; + + default: + + acpi_os_printf + (" %s space is not supported [%4.4s]\n", + acpi_ut_get_region_name(region_obj->region. + space_id), + region_obj->region.node->name.ascii); + return (AE_OK); + } + break; + + default: + break; + } + + /* At this point, we have resolved the object to one of the major types */ + + switch (local_type) { + case ACPI_TYPE_INTEGER: + + status = acpi_db_test_integer_type(node, bit_length); + break; + + case ACPI_TYPE_STRING: + + status = acpi_db_test_string_type(node, byte_length); + break; + + case ACPI_TYPE_BUFFER: + + status = acpi_db_test_buffer_type(node, bit_length); + break; + + default: + + acpi_os_printf(" Ignoring, type not implemented (%2.2X)", + local_type); + break; + } + + switch (node->type) { + case ACPI_TYPE_LOCAL_REGION_FIELD: + + region_obj = obj_desc->field.region_obj; + acpi_os_printf(" (%s)", + acpi_ut_get_region_name(region_obj->region. + space_id)); + break; + + default: + break; + } + + acpi_os_printf("\n"); + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_test_integer_type + * + * PARAMETERS: node - Parent NS node for the object + * bit_length - Actual length of the object. Used for + * support of arbitrary length field_unit + * and buffer_field objects. + * + * RETURN: Status + * + * DESCRIPTION: Test read/write for an Integer-valued object. Performs a + * write/read/compare of an arbitrary new value, then performs + * a write/read/compare of the original value. + * + ******************************************************************************/ + +static acpi_status +acpi_db_test_integer_type(struct acpi_namespace_node *node, u32 bit_length) +{ + union acpi_object *temp1 = NULL; + union acpi_object *temp2 = NULL; + union acpi_object *temp3 = NULL; + union acpi_object write_value; + u64 value_to_write; + acpi_status status; + + if (bit_length > 64) { + acpi_os_printf(" Invalid length for an Integer: %u", + bit_length); + return (AE_OK); + } + + /* Read the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp1); + if (ACPI_FAILURE(status)) { + return (status); + } + + acpi_os_printf(" (%4.4X/%3.3X) %8.8X%8.8X", + bit_length, ACPI_ROUND_BITS_UP_TO_BYTES(bit_length), + ACPI_FORMAT_UINT64(temp1->integer.value)); + + value_to_write = ACPI_UINT64_MAX >> (64 - bit_length); + if (temp1->integer.value == value_to_write) { + value_to_write = 0; + } + + /* Write a new value */ + + write_value.type = ACPI_TYPE_INTEGER; + write_value.integer.value = value_to_write; + status = acpi_db_write_to_object(node, &write_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we can read back the new value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp2); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (temp2->integer.value != value_to_write) { + acpi_os_printf(" MISMATCH 2: %8.8X%8.8X, expecting %8.8X%8.8X", + ACPI_FORMAT_UINT64(temp2->integer.value), + ACPI_FORMAT_UINT64(value_to_write)); + } + + /* Write back the original value */ + + write_value.integer.value = temp1->integer.value; + status = acpi_db_write_to_object(node, &write_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we can read back the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_INTEGER, &temp3); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (temp3->integer.value != temp1->integer.value) { + acpi_os_printf(" MISMATCH 3: %8.8X%8.8X, expecting %8.8X%8.8X", + ACPI_FORMAT_UINT64(temp3->integer.value), + ACPI_FORMAT_UINT64(temp1->integer.value)); + } + +exit: + if (temp1) { + acpi_os_free(temp1); + } + if (temp2) { + acpi_os_free(temp2); + } + if (temp3) { + acpi_os_free(temp3); + } + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_test_buffer_type + * + * PARAMETERS: node - Parent NS node for the object + * bit_length - Actual length of the object. + * + * RETURN: Status + * + * DESCRIPTION: Test read/write for an Buffer-valued object. Performs a + * write/read/compare of an arbitrary new value, then performs + * a write/read/compare of the original value. + * + ******************************************************************************/ + +static acpi_status +acpi_db_test_buffer_type(struct acpi_namespace_node *node, u32 bit_length) +{ + union acpi_object *temp1 = NULL; + union acpi_object *temp2 = NULL; + union acpi_object *temp3 = NULL; + u8 *buffer; + union acpi_object write_value; + acpi_status status; + u32 byte_length; + u32 i; + u8 extra_bits; + + byte_length = ACPI_ROUND_BITS_UP_TO_BYTES(bit_length); + if (byte_length == 0) { + acpi_os_printf(" Ignoring zero length buffer"); + return (AE_OK); + } + + /* Allocate a local buffer */ + + buffer = ACPI_ALLOCATE_ZEROED(byte_length); + if (!buffer) { + return (AE_NO_MEMORY); + } + + /* Read the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp1); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Emit a few bytes of the buffer */ + + acpi_os_printf(" (%4.4X/%3.3X)", bit_length, temp1->buffer.length); + for (i = 0; ((i < 4) && (i < byte_length)); i++) { + acpi_os_printf(" %2.2X", temp1->buffer.pointer[i]); + } + acpi_os_printf("... "); + + /* + * Write a new value. + * + * Handle possible extra bits at the end of the buffer. Can + * happen for field_units larger than an integer, but the bit + * count is not an integral number of bytes. Zero out the + * unused bits. + */ + memset(buffer, BUFFER_FILL_VALUE, byte_length); + extra_bits = bit_length % 8; + if (extra_bits) { + buffer[byte_length - 1] = ACPI_MASK_BITS_ABOVE(extra_bits); + } + + write_value.type = ACPI_TYPE_BUFFER; + write_value.buffer.length = byte_length; + write_value.buffer.pointer = buffer; + + status = acpi_db_write_to_object(node, &write_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we can read back the new value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp2); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (memcmp(temp2->buffer.pointer, buffer, byte_length)) { + acpi_os_printf(" MISMATCH 2: New buffer value"); + } + + /* Write back the original value */ + + write_value.buffer.length = byte_length; + write_value.buffer.pointer = temp1->buffer.pointer; + + status = acpi_db_write_to_object(node, &write_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we can read back the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_BUFFER, &temp3); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (memcmp(temp1->buffer.pointer, temp3->buffer.pointer, byte_length)) { + acpi_os_printf(" MISMATCH 3: While restoring original buffer"); + } + +exit: + ACPI_FREE(buffer); + if (temp1) { + acpi_os_free(temp1); + } + if (temp2) { + acpi_os_free(temp2); + } + if (temp3) { + acpi_os_free(temp3); + } + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_test_string_type + * + * PARAMETERS: node - Parent NS node for the object + * byte_length - Actual length of the object. + * + * RETURN: Status + * + * DESCRIPTION: Test read/write for an String-valued object. Performs a + * write/read/compare of an arbitrary new value, then performs + * a write/read/compare of the original value. + * + ******************************************************************************/ + +static acpi_status +acpi_db_test_string_type(struct acpi_namespace_node *node, u32 byte_length) +{ + union acpi_object *temp1 = NULL; + union acpi_object *temp2 = NULL; + union acpi_object *temp3 = NULL; + char *value_to_write = "Test String from AML Debugger"; + union acpi_object write_value; + acpi_status status; + + /* Read the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp1); + if (ACPI_FAILURE(status)) { + return (status); + } + + acpi_os_printf(" (%4.4X/%3.3X) \"%s\"", (temp1->string.length * 8), + temp1->string.length, temp1->string.pointer); + + /* Write a new value */ + + write_value.type = ACPI_TYPE_STRING; + write_value.string.length = strlen(value_to_write); + write_value.string.pointer = value_to_write; + + status = acpi_db_write_to_object(node, &write_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we can read back the new value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp2); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (strcmp(temp2->string.pointer, value_to_write)) { + acpi_os_printf(" MISMATCH 2: %s, expecting %s", + temp2->string.pointer, value_to_write); + } + + /* Write back the original value */ + + write_value.string.length = strlen(temp1->string.pointer); + write_value.string.pointer = temp1->string.pointer; + + status = acpi_db_write_to_object(node, &write_value); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Ensure that we can read back the original value */ + + status = acpi_db_read_from_object(node, ACPI_TYPE_STRING, &temp3); + if (ACPI_FAILURE(status)) { + goto exit; + } + + if (strcmp(temp1->string.pointer, temp3->string.pointer)) { + acpi_os_printf(" MISMATCH 3: %s, expecting %s", + temp3->string.pointer, temp1->string.pointer); + } + +exit: + if (temp1) { + acpi_os_free(temp1); + } + if (temp2) { + acpi_os_free(temp2); + } + if (temp3) { + acpi_os_free(temp3); + } + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_read_from_object + * + * PARAMETERS: node - Parent NS node for the object + * expected_type - Object type expected from the read + * value - Where the value read is returned + * + * RETURN: Status + * + * DESCRIPTION: Performs a read from the specified object by invoking the + * special debugger control method that reads the object. Thus, + * the AML interpreter is doing all of the work, increasing the + * validity of the test. + * + ******************************************************************************/ + +static acpi_status +acpi_db_read_from_object(struct acpi_namespace_node *node, + acpi_object_type expected_type, + union acpi_object **value) +{ + union acpi_object *ret_value; + struct acpi_object_list param_objects; + union acpi_object params[2]; + struct acpi_buffer return_obj; + acpi_status status; + + params[0].type = ACPI_TYPE_LOCAL_REFERENCE; + params[0].reference.actual_type = node->type; + params[0].reference.handle = ACPI_CAST_PTR(acpi_handle, node); + + param_objects.count = 1; + param_objects.pointer = params; + + return_obj.length = ACPI_ALLOCATE_BUFFER; + + acpi_gbl_method_executing = TRUE; + status = acpi_evaluate_object(read_handle, NULL, + ¶m_objects, &return_obj); + acpi_gbl_method_executing = FALSE; + + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not read from object, %s", + acpi_format_exception(status)); + return (status); + } + + ret_value = (union acpi_object *)return_obj.pointer; + + switch (ret_value->type) { + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_BUFFER: + case ACPI_TYPE_STRING: + /* + * Did we receive the type we wanted? Most important for the + * Integer/Buffer case (when a field is larger than an Integer, + * it should return a Buffer). + */ + if (ret_value->type != expected_type) { + acpi_os_printf + (" Type mismatch: Expected %s, Received %s", + acpi_ut_get_type_name(expected_type), + acpi_ut_get_type_name(ret_value->type)); + + return (AE_TYPE); + } + + *value = ret_value; + break; + + default: + + acpi_os_printf(" Unsupported return object type, %s", + acpi_ut_get_type_name(ret_value->type)); + + acpi_os_free(return_obj.pointer); + return (AE_TYPE); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_write_to_object + * + * PARAMETERS: node - Parent NS node for the object + * value - Value to be written + * + * RETURN: Status + * + * DESCRIPTION: Performs a write to the specified object by invoking the + * special debugger control method that writes the object. Thus, + * the AML interpreter is doing all of the work, increasing the + * validity of the test. + * + ******************************************************************************/ + +static acpi_status +acpi_db_write_to_object(struct acpi_namespace_node *node, + union acpi_object *value) +{ + struct acpi_object_list param_objects; + union acpi_object params[2]; + acpi_status status; + + params[0].type = ACPI_TYPE_LOCAL_REFERENCE; + params[0].reference.actual_type = node->type; + params[0].reference.handle = ACPI_CAST_PTR(acpi_handle, node); + + /* Copy the incoming user parameter */ + + memcpy(¶ms[1], value, sizeof(union acpi_object)); + + param_objects.count = 2; + param_objects.pointer = params; + + acpi_gbl_method_executing = TRUE; + status = acpi_evaluate_object(write_handle, NULL, ¶m_objects, NULL); + acpi_gbl_method_executing = FALSE; + + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not write to object, %s", + acpi_format_exception(status)); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_evaluate_all_predefined_names + * + * PARAMETERS: count_arg - Max number of methods to execute + * + * RETURN: None + * + * DESCRIPTION: Namespace batch execution. Execute predefined names in the + * namespace, up to the max count, if specified. + * + ******************************************************************************/ + +static void acpi_db_evaluate_all_predefined_names(char *count_arg) +{ + struct acpi_db_execute_walk info; + + info.count = 0; + info.max_count = ACPI_UINT32_MAX; + + if (count_arg) { + info.max_count = strtoul(count_arg, NULL, 0); + } + + /* Search all nodes in namespace */ + + (void)acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, + acpi_db_evaluate_one_predefined_name, NULL, + (void *)&info, NULL); + + acpi_os_printf("Evaluated %u predefined names in the namespace\n", + info.count); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_evaluate_one_predefined_name + * + * PARAMETERS: Callback from walk_namespace + * + * RETURN: Status + * + * DESCRIPTION: Batch execution module. Currently only executes predefined + * ACPI names. + * + ******************************************************************************/ + +static acpi_status +acpi_db_evaluate_one_predefined_name(acpi_handle obj_handle, + u32 nesting_level, + void *context, void **return_value) +{ + struct acpi_namespace_node *node = + (struct acpi_namespace_node *)obj_handle; + struct acpi_db_execute_walk *info = + (struct acpi_db_execute_walk *)context; + char *pathname; + const union acpi_predefined_info *predefined; + struct acpi_device_info *obj_info; + struct acpi_object_list param_objects; + union acpi_object params[ACPI_METHOD_NUM_ARGS]; + union acpi_object *this_param; + struct acpi_buffer return_obj; + acpi_status status; + u16 arg_type_list; + u8 arg_count; + u8 arg_type; + u32 i; + + /* The name must be a predefined ACPI name */ + + predefined = acpi_ut_match_predefined_method(node->name.ascii); + if (!predefined) { + return (AE_OK); + } + + if (node->type == ACPI_TYPE_LOCAL_SCOPE) { + return (AE_OK); + } + + pathname = acpi_ns_get_external_pathname(node); + if (!pathname) { + return (AE_OK); + } + + /* Get the object info for number of method parameters */ + + status = acpi_get_object_info(obj_handle, &obj_info); + if (ACPI_FAILURE(status)) { + ACPI_FREE(pathname); + return (status); + } + + param_objects.count = 0; + param_objects.pointer = NULL; + + if (obj_info->type == ACPI_TYPE_METHOD) { + + /* Setup default parameters (with proper types) */ + + arg_type_list = predefined->info.argument_list; + arg_count = METHOD_GET_ARG_COUNT(arg_type_list); + + /* + * Setup the ACPI-required number of arguments, regardless of what + * the actual method defines. If there is a difference, then the + * method is wrong and a warning will be issued during execution. + */ + this_param = params; + for (i = 0; i < arg_count; i++) { + arg_type = METHOD_GET_NEXT_TYPE(arg_type_list); + this_param->type = arg_type; + + switch (arg_type) { + case ACPI_TYPE_INTEGER: + + this_param->integer.value = 1; + break; + + case ACPI_TYPE_STRING: + + this_param->string.pointer = + "This is the default argument string"; + this_param->string.length = + strlen(this_param->string.pointer); + break; + + case ACPI_TYPE_BUFFER: + + this_param->buffer.pointer = (u8 *)params; /* just a garbage buffer */ + this_param->buffer.length = 48; + break; + + case ACPI_TYPE_PACKAGE: + + this_param->package.elements = NULL; + this_param->package.count = 0; + break; + + default: + + acpi_os_printf + ("%s: Unsupported argument type: %u\n", + pathname, arg_type); + break; + } + + this_param++; + } + + param_objects.count = arg_count; + param_objects.pointer = params; + } + + ACPI_FREE(obj_info); + return_obj.pointer = NULL; + return_obj.length = ACPI_ALLOCATE_BUFFER; + + /* Do the actual method execution */ + + acpi_gbl_method_executing = TRUE; + + status = acpi_evaluate_object(node, NULL, ¶m_objects, &return_obj); + + acpi_os_printf("%-32s returned %s\n", + pathname, acpi_format_exception(status)); + acpi_gbl_method_executing = FALSE; + ACPI_FREE(pathname); + + /* Ignore status from method execution */ + + status = AE_OK; + + /* Update count, check if we have executed enough methods */ + + info->count++; + if (info->count >= info->max_count) { + status = AE_CTRL_TERMINATE; + } + + return (status); +} diff --git a/drivers/acpi/acpica/dbutils.c b/drivers/acpi/acpica/dbutils.c new file mode 100644 index 000000000000..86790e080139 --- /dev/null +++ b/drivers/acpi/acpica/dbutils.c @@ -0,0 +1,457 @@ +/******************************************************************************* + * + * Module Name: dbutils - AML debugger utilities + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acnamesp.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbutils") + +/* Local prototypes */ +#ifdef ACPI_OBSOLETE_FUNCTIONS +acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root); + +void acpi_db_dump_buffer(u32 address); +#endif + +static char *gbl_hex_to_ascii = "0123456789ABCDEF"; + +/******************************************************************************* + * + * FUNCTION: acpi_db_match_argument + * + * PARAMETERS: user_argument - User command line + * arguments - Array of commands to match against + * + * RETURN: Index into command array or ACPI_TYPE_NOT_FOUND if not found + * + * DESCRIPTION: Search command array for a command match + * + ******************************************************************************/ + +acpi_object_type +acpi_db_match_argument(char *user_argument, + struct acpi_db_argument_info *arguments) +{ + u32 i; + + if (!user_argument || user_argument[0] == 0) { + return (ACPI_TYPE_NOT_FOUND); + } + + for (i = 0; arguments[i].name; i++) { + if (strstr(arguments[i].name, user_argument) == + arguments[i].name) { + return (i); + } + } + + /* Argument not recognized */ + + return (ACPI_TYPE_NOT_FOUND); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_set_output_destination + * + * PARAMETERS: output_flags - Current flags word + * + * RETURN: None + * + * DESCRIPTION: Set the current destination for debugger output. Also sets + * the debug output level accordingly. + * + ******************************************************************************/ + +void acpi_db_set_output_destination(u32 output_flags) +{ + + acpi_gbl_db_output_flags = (u8)output_flags; + + if ((output_flags & ACPI_DB_REDIRECTABLE_OUTPUT) && + acpi_gbl_db_output_to_file) { + acpi_dbg_level = acpi_gbl_db_debug_level; + } else { + acpi_dbg_level = acpi_gbl_db_console_debug_level; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_external_object + * + * PARAMETERS: obj_desc - External ACPI object to dump + * level - Nesting level. + * + * RETURN: None + * + * DESCRIPTION: Dump the contents of an ACPI external object + * + ******************************************************************************/ + +void acpi_db_dump_external_object(union acpi_object *obj_desc, u32 level) +{ + u32 i; + + if (!obj_desc) { + acpi_os_printf("[Null Object]\n"); + return; + } + + for (i = 0; i < level; i++) { + acpi_os_printf(" "); + } + + switch (obj_desc->type) { + case ACPI_TYPE_ANY: + + acpi_os_printf("[Null Object] (Type=0)\n"); + break; + + case ACPI_TYPE_INTEGER: + + acpi_os_printf("[Integer] = %8.8X%8.8X\n", + ACPI_FORMAT_UINT64(obj_desc->integer.value)); + break; + + case ACPI_TYPE_STRING: + + acpi_os_printf("[String] Length %.2X = ", + obj_desc->string.length); + acpi_ut_print_string(obj_desc->string.pointer, ACPI_UINT8_MAX); + acpi_os_printf("\n"); + break; + + case ACPI_TYPE_BUFFER: + + acpi_os_printf("[Buffer] Length %.2X = ", + obj_desc->buffer.length); + if (obj_desc->buffer.length) { + if (obj_desc->buffer.length > 16) { + acpi_os_printf("\n"); + } + acpi_ut_debug_dump_buffer(ACPI_CAST_PTR + (u8, + obj_desc->buffer.pointer), + obj_desc->buffer.length, + DB_BYTE_DISPLAY, _COMPONENT); + } else { + acpi_os_printf("\n"); + } + break; + + case ACPI_TYPE_PACKAGE: + + acpi_os_printf("[Package] Contains %u Elements:\n", + obj_desc->package.count); + + for (i = 0; i < obj_desc->package.count; i++) { + acpi_db_dump_external_object(&obj_desc->package. + elements[i], level + 1); + } + break; + + case ACPI_TYPE_LOCAL_REFERENCE: + + acpi_os_printf("[Object Reference] = "); + acpi_db_display_internal_object(obj_desc->reference.handle, + NULL); + break; + + case ACPI_TYPE_PROCESSOR: + + acpi_os_printf("[Processor]\n"); + break; + + case ACPI_TYPE_POWER: + + acpi_os_printf("[Power Resource]\n"); + break; + + default: + + acpi_os_printf("[Unknown Type] %X\n", obj_desc->type); + break; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_prep_namestring + * + * PARAMETERS: name - String to prepare + * + * RETURN: None + * + * DESCRIPTION: Translate all forward slashes and dots to backslashes. + * + ******************************************************************************/ + +void acpi_db_prep_namestring(char *name) +{ + + if (!name) { + return; + } + + acpi_ut_strupr(name); + + /* Convert a leading forward slash to a backslash */ + + if (*name == '/') { + *name = '\\'; + } + + /* Ignore a leading backslash, this is the root prefix */ + + if (ACPI_IS_ROOT_PREFIX(*name)) { + name++; + } + + /* Convert all slash path separators to dots */ + + while (*name) { + if ((*name == '/') || (*name == '\\')) { + *name = '.'; + } + + name++; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_local_ns_lookup + * + * PARAMETERS: name - Name to lookup + * + * RETURN: Pointer to a namespace node, null on failure + * + * DESCRIPTION: Lookup a name in the ACPI namespace + * + * Note: Currently begins search from the root. Could be enhanced to use + * the current prefix (scope) node as the search beginning point. + * + ******************************************************************************/ + +struct acpi_namespace_node *acpi_db_local_ns_lookup(char *name) +{ + char *internal_path; + acpi_status status; + struct acpi_namespace_node *node = NULL; + + acpi_db_prep_namestring(name); + + /* Build an internal namestring */ + + status = acpi_ns_internalize_name(name, &internal_path); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Invalid namestring: %s\n", name); + return (NULL); + } + + /* + * Lookup the name. + * (Uses root node as the search starting point) + */ + status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY, + ACPI_IMODE_EXECUTE, + ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE, + NULL, &node); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not locate name: %s, %s\n", + name, acpi_format_exception(status)); + } + + ACPI_FREE(internal_path); + return (node); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_uint32_to_hex_string + * + * PARAMETERS: value - The value to be converted to string + * buffer - Buffer for result (not less than 11 bytes) + * + * RETURN: None + * + * DESCRIPTION: Convert the unsigned 32-bit value to the hexadecimal image + * + * NOTE: It is the caller's responsibility to ensure that the length of buffer + * is sufficient. + * + ******************************************************************************/ + +void acpi_db_uint32_to_hex_string(u32 value, char *buffer) +{ + int i; + + if (value == 0) { + strcpy(buffer, "0"); + return; + } + + buffer[8] = '\0'; + + for (i = 7; i >= 0; i--) { + buffer[i] = gbl_hex_to_ascii[value & 0x0F]; + value = value >> 4; + } +} + +#ifdef ACPI_OBSOLETE_FUNCTIONS +/******************************************************************************* + * + * FUNCTION: acpi_db_second_pass_parse + * + * PARAMETERS: root - Root of the parse tree + * + * RETURN: Status + * + * DESCRIPTION: Second pass parse of the ACPI tables. We need to wait until + * second pass to parse the control methods + * + ******************************************************************************/ + +acpi_status acpi_db_second_pass_parse(union acpi_parse_object *root) +{ + union acpi_parse_object *op = root; + union acpi_parse_object *method; + union acpi_parse_object *search_op; + union acpi_parse_object *start_op; + acpi_status status = AE_OK; + u32 base_aml_offset; + struct acpi_walk_state *walk_state; + + ACPI_FUNCTION_ENTRY(); + + acpi_os_printf("Pass two parse ....\n"); + + while (op) { + if (op->common.aml_opcode == AML_METHOD_OP) { + method = op; + + /* Create a new walk state for the parse */ + + walk_state = + acpi_ds_create_walk_state(0, NULL, NULL, NULL); + if (!walk_state) { + return (AE_NO_MEMORY); + } + + /* Init the Walk State */ + + walk_state->parser_state.aml = + walk_state->parser_state.aml_start = + method->named.data; + walk_state->parser_state.aml_end = + walk_state->parser_state.pkg_end = + method->named.data + method->named.length; + walk_state->parser_state.start_scope = op; + + walk_state->descending_callback = + acpi_ds_load1_begin_op; + walk_state->ascending_callback = acpi_ds_load1_end_op; + + /* Perform the AML parse */ + + status = acpi_ps_parse_aml(walk_state); + + base_aml_offset = + (method->common.value.arg)->common.aml_offset + 1; + start_op = (method->common.value.arg)->common.next; + search_op = start_op; + + while (search_op) { + search_op->common.aml_offset += base_aml_offset; + search_op = + acpi_ps_get_depth_next(start_op, search_op); + } + } + + if (op->common.aml_opcode == AML_REGION_OP) { + + /* TBD: [Investigate] this isn't quite the right thing to do! */ + /* + * + * Method = (ACPI_DEFERRED_OP *) Op; + * Status = acpi_ps_parse_aml (Op, Method->Body, Method->body_length); + */ + } + + if (ACPI_FAILURE(status)) { + break; + } + + op = acpi_ps_get_depth_next(root, op); + } + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_dump_buffer + * + * PARAMETERS: address - Pointer to the buffer + * + * RETURN: None + * + * DESCRIPTION: Print a portion of a buffer + * + ******************************************************************************/ + +void acpi_db_dump_buffer(u32 address) +{ + + acpi_os_printf("\nLocation %X:\n", address); + + acpi_dbg_level |= ACPI_LV_TABLES; + acpi_ut_debug_dump_buffer(ACPI_TO_POINTER(address), 64, DB_BYTE_DISPLAY, + ACPI_UINT32_MAX); +} +#endif diff --git a/drivers/acpi/acpica/dbxface.c b/drivers/acpi/acpica/dbxface.c new file mode 100644 index 000000000000..342298a6e10f --- /dev/null +++ b/drivers/acpi/acpica/dbxface.c @@ -0,0 +1,513 @@ +/******************************************************************************* + * + * Module Name: dbxface - AML Debugger external interfaces + * + ******************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "amlcode.h" +#include "acdebug.h" + +#define _COMPONENT ACPI_CA_DEBUGGER +ACPI_MODULE_NAME("dbxface") + +/* Local prototypes */ +static acpi_status +acpi_db_start_command(struct acpi_walk_state *walk_state, + union acpi_parse_object *op); + +#ifdef ACPI_OBSOLETE_FUNCTIONS +void acpi_db_method_end(struct acpi_walk_state *walk_state); +#endif + +/******************************************************************************* + * + * FUNCTION: acpi_db_start_command + * + * PARAMETERS: walk_state - Current walk + * op - Current executing Op, from AML interpreter + * + * RETURN: Status + * + * DESCRIPTION: Enter debugger command loop + * + ******************************************************************************/ + +static acpi_status +acpi_db_start_command(struct acpi_walk_state *walk_state, + union acpi_parse_object *op) +{ + acpi_status status; + + /* TBD: [Investigate] are there namespace locking issues here? */ + + /* acpi_ut_release_mutex (ACPI_MTX_NAMESPACE); */ + + /* Go into the command loop and await next user command */ + + acpi_gbl_method_executing = TRUE; + status = AE_CTRL_TRUE; + while (status == AE_CTRL_TRUE) { + if (acpi_gbl_debugger_configuration == DEBUGGER_MULTI_THREADED) { + + /* Handshake with the front-end that gets user command lines */ + + acpi_os_release_mutex(acpi_gbl_db_command_complete); + + status = + acpi_os_acquire_mutex(acpi_gbl_db_command_ready, + ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return (status); + } + } else { + /* Single threaded, we must get a command line ourselves */ + + /* Force output to console until a command is entered */ + + acpi_db_set_output_destination(ACPI_DB_CONSOLE_OUTPUT); + + /* Different prompt if method is executing */ + + if (!acpi_gbl_method_executing) { + acpi_os_printf("%1c ", + ACPI_DEBUGGER_COMMAND_PROMPT); + } else { + acpi_os_printf("%1c ", + ACPI_DEBUGGER_EXECUTE_PROMPT); + } + + /* Get the user input line */ + + status = acpi_os_get_line(acpi_gbl_db_line_buf, + ACPI_DB_LINE_BUFFER_SIZE, + NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "While parsing command line")); + return (status); + } + } + + status = + acpi_db_command_dispatch(acpi_gbl_db_line_buf, walk_state, + op); + } + + /* acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE); */ + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_db_single_step + * + * PARAMETERS: walk_state - Current walk + * op - Current executing op (from aml interpreter) + * opcode_class - Class of the current AML Opcode + * + * RETURN: Status + * + * DESCRIPTION: Called just before execution of an AML opcode. + * + ******************************************************************************/ + +acpi_status +acpi_db_single_step(struct acpi_walk_state * walk_state, + union acpi_parse_object * op, u32 opcode_class) +{ + union acpi_parse_object *next; + acpi_status status = AE_OK; + u32 original_debug_level; + union acpi_parse_object *display_op; + union acpi_parse_object *parent_op; + u32 aml_offset; + + ACPI_FUNCTION_ENTRY(); + +#ifndef ACPI_APPLICATION + if (acpi_gbl_db_thread_id != acpi_os_get_thread_id()) { + return (AE_OK); + } +#endif + + /* Check the abort flag */ + + if (acpi_gbl_abort_method) { + acpi_gbl_abort_method = FALSE; + return (AE_ABORT_METHOD); + } + + aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml, + walk_state->parser_state.aml_start); + + /* Check for single-step breakpoint */ + + if (walk_state->method_breakpoint && + (walk_state->method_breakpoint <= aml_offset)) { + + /* Check if the breakpoint has been reached or passed */ + /* Hit the breakpoint, resume single step, reset breakpoint */ + + acpi_os_printf("***Break*** at AML offset %X\n", aml_offset); + acpi_gbl_cm_single_step = TRUE; + acpi_gbl_step_to_next_call = FALSE; + walk_state->method_breakpoint = 0; + } + + /* Check for user breakpoint (Must be on exact Aml offset) */ + + else if (walk_state->user_breakpoint && + (walk_state->user_breakpoint == aml_offset)) { + acpi_os_printf("***UserBreakpoint*** at AML offset %X\n", + aml_offset); + acpi_gbl_cm_single_step = TRUE; + acpi_gbl_step_to_next_call = FALSE; + walk_state->method_breakpoint = 0; + } + + /* + * Check if this is an opcode that we are interested in -- + * namely, opcodes that have arguments + */ + if (op->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { + return (AE_OK); + } + + switch (opcode_class) { + case AML_CLASS_UNKNOWN: + case AML_CLASS_ARGUMENT: /* constants, literals, etc. do nothing */ + + return (AE_OK); + + default: + + /* All other opcodes -- continue */ + break; + } + + /* + * Under certain debug conditions, display this opcode and its operands + */ + if ((acpi_gbl_db_output_to_file) || + (acpi_gbl_cm_single_step) || (acpi_dbg_level & ACPI_LV_PARSE)) { + if ((acpi_gbl_db_output_to_file) || + (acpi_dbg_level & ACPI_LV_PARSE)) { + acpi_os_printf + ("\n[AmlDebug] Next AML Opcode to execute:\n"); + } + + /* + * Display this op (and only this op - zero out the NEXT field + * temporarily, and disable parser trace output for the duration of + * the display because we don't want the extraneous debug output) + */ + original_debug_level = acpi_dbg_level; + acpi_dbg_level &= ~(ACPI_LV_PARSE | ACPI_LV_FUNCTIONS); + next = op->common.next; + op->common.next = NULL; + + display_op = op; + parent_op = op->common.parent; + if (parent_op) { + if ((walk_state->control_state) && + (walk_state->control_state->common.state == + ACPI_CONTROL_PREDICATE_EXECUTING)) { + /* + * We are executing the predicate of an IF or WHILE statement + * Search upwards for the containing IF or WHILE so that the + * entire predicate can be displayed. + */ + while (parent_op) { + if ((parent_op->common.aml_opcode == + AML_IF_OP) + || (parent_op->common.aml_opcode == + AML_WHILE_OP)) { + display_op = parent_op; + break; + } + parent_op = parent_op->common.parent; + } + } else { + while (parent_op) { + if ((parent_op->common.aml_opcode == + AML_IF_OP) + || (parent_op->common.aml_opcode == + AML_ELSE_OP) + || (parent_op->common.aml_opcode == + AML_SCOPE_OP) + || (parent_op->common.aml_opcode == + AML_METHOD_OP) + || (parent_op->common.aml_opcode == + AML_WHILE_OP)) { + break; + } + display_op = parent_op; + parent_op = parent_op->common.parent; + } + } + } + + /* Now we can display it */ + +#ifdef ACPI_DISASSEMBLER + acpi_dm_disassemble(walk_state, display_op, ACPI_UINT32_MAX); +#endif + + if ((op->common.aml_opcode == AML_IF_OP) || + (op->common.aml_opcode == AML_WHILE_OP)) { + if (walk_state->control_state->common.value) { + acpi_os_printf + ("Predicate = [True], IF block was executed\n"); + } else { + acpi_os_printf + ("Predicate = [False], Skipping IF block\n"); + } + } else if (op->common.aml_opcode == AML_ELSE_OP) { + acpi_os_printf + ("Predicate = [False], ELSE block was executed\n"); + } + + /* Restore everything */ + + op->common.next = next; + acpi_os_printf("\n"); + if ((acpi_gbl_db_output_to_file) || + (acpi_dbg_level & ACPI_LV_PARSE)) { + acpi_os_printf("\n"); + } + acpi_dbg_level = original_debug_level; + } + + /* If we are not single stepping, just continue executing the method */ + + if (!acpi_gbl_cm_single_step) { + return (AE_OK); + } + + /* + * If we are executing a step-to-call command, + * Check if this is a method call. + */ + if (acpi_gbl_step_to_next_call) { + if (op->common.aml_opcode != AML_INT_METHODCALL_OP) { + + /* Not a method call, just keep executing */ + + return (AE_OK); + } + + /* Found a method call, stop executing */ + + acpi_gbl_step_to_next_call = FALSE; + } + + /* + * If the next opcode is a method call, we will "step over" it + * by default. + */ + if (op->common.aml_opcode == AML_INT_METHODCALL_OP) { + + /* Force no more single stepping while executing called method */ + + acpi_gbl_cm_single_step = FALSE; + + /* + * Set the breakpoint on/before the call, it will stop execution + * as soon as we return + */ + walk_state->method_breakpoint = 1; /* Must be non-zero! */ + } + + status = acpi_db_start_command(walk_state, op); + + /* User commands complete, continue execution of the interrupted method */ + + return (status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_initialize_debugger + * + * PARAMETERS: None + * + * RETURN: Status + * + * DESCRIPTION: Init and start debugger + * + ******************************************************************************/ + +acpi_status acpi_initialize_debugger(void) +{ + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_initialize_debugger); + + /* Init globals */ + + acpi_gbl_db_buffer = NULL; + acpi_gbl_db_filename = NULL; + acpi_gbl_db_output_to_file = FALSE; + + acpi_gbl_db_debug_level = ACPI_LV_VERBOSITY2; + acpi_gbl_db_console_debug_level = ACPI_NORMAL_DEFAULT | ACPI_LV_TABLES; + acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT; + + acpi_gbl_db_opt_no_ini_methods = FALSE; + + acpi_gbl_db_buffer = acpi_os_allocate(ACPI_DEBUG_BUFFER_SIZE); + if (!acpi_gbl_db_buffer) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + memset(acpi_gbl_db_buffer, 0, ACPI_DEBUG_BUFFER_SIZE); + + /* Initial scope is the root */ + + acpi_gbl_db_scope_buf[0] = AML_ROOT_PREFIX; + acpi_gbl_db_scope_buf[1] = 0; + acpi_gbl_db_scope_node = acpi_gbl_root_node; + + /* Initialize user commands loop */ + + acpi_gbl_db_terminate_loop = FALSE; + + /* + * If configured for multi-thread support, the debug executor runs in + * a separate thread so that the front end can be in another address + * space, environment, or even another machine. + */ + if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) { + + /* These were created with one unit, grab it */ + + status = acpi_os_acquire_mutex(acpi_gbl_db_command_complete, + ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not get debugger mutex\n"); + return_ACPI_STATUS(status); + } + + status = acpi_os_acquire_mutex(acpi_gbl_db_command_ready, + ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not get debugger mutex\n"); + return_ACPI_STATUS(status); + } + + /* Create the debug execution thread to execute commands */ + + acpi_gbl_db_threads_terminated = FALSE; + status = acpi_os_execute(OSL_DEBUGGER_MAIN_THREAD, + acpi_db_execute_thread, NULL); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not start debugger thread")); + acpi_gbl_db_threads_terminated = TRUE; + return_ACPI_STATUS(status); + } + } else { + acpi_gbl_db_thread_id = acpi_os_get_thread_id(); + } + + return_ACPI_STATUS(AE_OK); +} + +ACPI_EXPORT_SYMBOL(acpi_initialize_debugger) + +/******************************************************************************* + * + * FUNCTION: acpi_terminate_debugger + * + * PARAMETERS: None + * + * RETURN: None + * + * DESCRIPTION: Stop debugger + * + ******************************************************************************/ +void acpi_terminate_debugger(void) +{ + + /* Terminate the AML Debugger */ + + acpi_gbl_db_terminate_loop = TRUE; + + if (acpi_gbl_debugger_configuration & DEBUGGER_MULTI_THREADED) { + acpi_os_release_mutex(acpi_gbl_db_command_ready); + + /* Wait the AML Debugger threads */ + + while (!acpi_gbl_db_threads_terminated) { + acpi_os_sleep(100); + } + } + + if (acpi_gbl_db_buffer) { + acpi_os_free(acpi_gbl_db_buffer); + acpi_gbl_db_buffer = NULL; + } + + /* Ensure that debug output is now disabled */ + + acpi_gbl_db_output_flags = ACPI_DB_DISABLE_OUTPUT; +} + +ACPI_EXPORT_SYMBOL(acpi_terminate_debugger) + +/******************************************************************************* + * + * FUNCTION: acpi_set_debugger_thread_id + * + * PARAMETERS: thread_id - Debugger thread ID + * + * RETURN: None + * + * DESCRIPTION: Set debugger thread ID + * + ******************************************************************************/ +void acpi_set_debugger_thread_id(acpi_thread_id thread_id) +{ + acpi_gbl_db_thread_id = thread_id; +} + +ACPI_EXPORT_SYMBOL(acpi_set_debugger_thread_id) diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index 81f2d9e87fad..07d22bfbaa00 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -405,7 +405,7 @@ cleanup: } ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) -#endif /* ACPI_FUTURE_USAGE */ +#endif #if (!ACPI_REDUCED_HARDWARE) /******************************************************************************* diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index 075d654c837f..1e4c5b6dc0b0 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -618,6 +618,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, break; case ARGI_TARGETREF: + case ARGI_STORE_TARGET: switch (destination_type) { case ACPI_TYPE_INTEGER: diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c index 7b109128b035..a1afe1a1e7c2 100644 --- a/drivers/acpi/acpica/exresolv.c +++ b/drivers/acpi/acpica/exresolv.c @@ -209,7 +209,6 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, * (i.e., dereference the package index) * Delete the ref object, increment the returned object */ - acpi_ut_remove_reference(stack_desc); acpi_ut_add_reference(obj_desc); *stack_ptr = obj_desc; } else { diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c index d2964af9ad4d..424442d50b5e 100644 --- a/drivers/acpi/acpica/exresop.c +++ b/drivers/acpi/acpica/exresop.c @@ -307,6 +307,8 @@ acpi_ex_resolve_operands(u16 opcode, case ARGI_TARGETREF: /* Allows implicit conversion rules before store */ case ARGI_FIXED_TARGET: /* No implicit conversion before store to target */ case ARGI_SIMPLE_TARGET: /* Name, Local, or arg - no implicit conversion */ + case ARGI_STORE_TARGET: + /* * Need an operand of type ACPI_TYPE_LOCAL_REFERENCE * A Namespace Node is OK as-is diff --git a/drivers/acpi/acpica/exstore.c b/drivers/acpi/acpica/exstore.c index a7eee2400ce0..c076e9100d66 100644 --- a/drivers/acpi/acpica/exstore.c +++ b/drivers/acpi/acpica/exstore.c @@ -137,7 +137,7 @@ acpi_ex_store(union acpi_operand_object *source_desc, /* Destination is not a Reference object */ ACPI_ERROR((AE_INFO, - "Target is not a Reference or Constant object - %s [%p]", + "Target is not a Reference or Constant object - [%s] %p", acpi_ut_get_object_type_name(dest_desc), dest_desc)); @@ -189,7 +189,7 @@ acpi_ex_store(union acpi_operand_object *source_desc, * displayed and otherwise has no effect -- see ACPI Specification */ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "**** Write to Debug Object: Object %p %s ****:\n\n", + "**** Write to Debug Object: Object %p [%s] ****:\n\n", source_desc, acpi_ut_get_object_type_name(source_desc))); @@ -341,7 +341,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, /* All other types are invalid */ ACPI_ERROR((AE_INFO, - "Source must be Integer/Buffer/String type, not %s", + "Source must be type [Integer/Buffer/String], found [%s]", acpi_ut_get_object_type_name(source_desc))); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } @@ -352,8 +352,9 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, break; default: - ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField")); - status = AE_AML_OPERAND_TYPE; + ACPI_ERROR((AE_INFO, + "Target is not of type [Package/BufferField]")); + status = AE_AML_TARGET_TYPE; break; } @@ -373,20 +374,20 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, * * DESCRIPTION: Store the object to the named object. * - * The Assignment of an object to a named object is handled here - * The value passed in will replace the current value (if any) - * with the input value. + * The assignment of an object to a named object is handled here. + * The value passed in will replace the current value (if any) + * with the input value. * - * When storing into an object the data is converted to the - * target object type then stored in the object. This means - * that the target object type (for an initialized target) will - * not be changed by a store operation. A copy_object can change - * the target type, however. + * When storing into an object the data is converted to the + * target object type then stored in the object. This means + * that the target object type (for an initialized target) will + * not be changed by a store operation. A copy_object can change + * the target type, however. * - * The implicit_conversion flag is set to NO/FALSE only when - * storing to an arg_x -- as per the rules of the ACPI spec. + * The implicit_conversion flag is set to NO/FALSE only when + * storing to an arg_x -- as per the rules of the ACPI spec. * - * Assumes parameters are already validated. + * Assumes parameters are already validated. * ******************************************************************************/ @@ -408,11 +409,75 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, target_type = acpi_ns_get_type(node); target_desc = acpi_ns_get_attached_object(node); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p (%s) to node %p (%s)\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Storing %p [%s] to node %p [%s]\n", source_desc, acpi_ut_get_object_type_name(source_desc), node, acpi_ut_get_type_name(target_type))); + /* Only limited target types possible for everything except copy_object */ + + if (walk_state->opcode != AML_COPY_OP) { + /* + * Only copy_object allows all object types to be overwritten. For + * target_ref(s), there are restrictions on the object types that + * are allowed. + * + * Allowable operations/typing for Store: + * + * 1) Simple Store + * Integer --> Integer (Named/Local/Arg) + * String --> String (Named/Local/Arg) + * Buffer --> Buffer (Named/Local/Arg) + * Package --> Package (Named/Local/Arg) + * + * 2) Store with implicit conversion + * Integer --> String or Buffer (Named) + * String --> Integer or Buffer (Named) + * Buffer --> Integer or String (Named) + */ + switch (target_type) { + case ACPI_TYPE_PACKAGE: + /* + * Here, can only store a package to an existing package. + * Storing a package to a Local/Arg is OK, and handled + * elsewhere. + */ + if (walk_state->opcode == AML_STORE_OP) { + if (source_desc->common.type != + ACPI_TYPE_PACKAGE) { + ACPI_ERROR((AE_INFO, + "Cannot assign type [%s] to [Package] " + "(source must be type Pkg)", + acpi_ut_get_object_type_name + (source_desc))); + + return_ACPI_STATUS(AE_AML_TARGET_TYPE); + } + break; + } + + /* Fallthrough */ + + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_EVENT: + case ACPI_TYPE_MUTEX: + case ACPI_TYPE_REGION: + case ACPI_TYPE_POWER: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + ACPI_ERROR((AE_INFO, + "Target must be [Buffer/Integer/String/Reference], found [%s] (%4.4s)", + acpi_ut_get_type_name(node->type), + node->name.ascii)); + + return_ACPI_STATUS(AE_AML_TARGET_TYPE); + + default: + break; + } + } + /* * Resolve the source object to an actual value * (If it is a reference object) @@ -425,13 +490,13 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, /* Do the actual store operation */ switch (target_type) { - case ACPI_TYPE_INTEGER: - case ACPI_TYPE_STRING: - case ACPI_TYPE_BUFFER: /* * The simple data types all support implicit source operand * conversion before the store. */ + case ACPI_TYPE_INTEGER: + case ACPI_TYPE_STRING: + case ACPI_TYPE_BUFFER: if ((walk_state->opcode == AML_COPY_OP) || !implicit_conversion) { /* @@ -467,7 +532,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, new_desc->common.type); ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Store %s into %s via Convert/Attach\n", + "Store type [%s] into [%s] via Convert/Attach\n", acpi_ut_get_object_type_name (source_desc), acpi_ut_get_object_type_name @@ -491,15 +556,12 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, default: /* - * No conversions for all other types. Directly store a copy of - * the source object. This is the ACPI spec-defined behavior for - * the copy_object operator. + * copy_object operator: No conversions for all other types. + * Instead, directly store a copy of the source object. * - * NOTE: For the Store operator, this is a departure from the - * ACPI spec, which states "If conversion is impossible, abort - * the running control method". Instead, this code implements - * "If conversion is impossible, treat the Store operation as - * a CopyObject". + * This is the ACPI spec-defined behavior for the copy_object + * operator. (Note, for this default case, all normal + * Store/Target operations exited above with an error). */ status = acpi_ex_store_direct_to_node(source_desc, node, walk_state); diff --git a/drivers/acpi/acpica/exstoren.c b/drivers/acpi/acpica/exstoren.c index 3101607b4efe..d1841defa669 100644 --- a/drivers/acpi/acpica/exstoren.c +++ b/drivers/acpi/acpica/exstoren.c @@ -122,9 +122,10 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, /* Conversion successful but still not a valid type */ ACPI_ERROR((AE_INFO, - "Cannot assign type %s to %s (must be type Int/Str/Buf)", + "Cannot assign type [%s] to [%s] (must be type Int/Str/Buf)", acpi_ut_get_object_type_name(source_desc), acpi_ut_get_type_name(target_type))); + status = AE_AML_OPERAND_TYPE; } break; @@ -275,7 +276,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, /* * All other types come here. */ - ACPI_WARNING((AE_INFO, "Store into type %s not implemented", + ACPI_WARNING((AE_INFO, "Store into type [%s] not implemented", acpi_ut_get_object_type_name(dest_desc))); status = AE_NOT_IMPLEMENTED; diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 0f1daba640e7..37aa5c45ca4b 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -60,7 +60,6 @@ acpi_ns_dump_one_device(acpi_handle obj_handle, #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) -#ifdef ACPI_FUTURE_USAGE static acpi_status acpi_ns_dump_one_object_path(acpi_handle obj_handle, u32 level, void *context, void **return_value); @@ -68,7 +67,6 @@ acpi_ns_dump_one_object_path(acpi_handle obj_handle, static acpi_status acpi_ns_get_max_depth(acpi_handle obj_handle, u32 level, void *context, void **return_value); -#endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* * @@ -625,7 +623,6 @@ cleanup: return (AE_OK); } -#ifdef ACPI_FUTURE_USAGE /******************************************************************************* * * FUNCTION: acpi_ns_dump_objects @@ -680,9 +677,7 @@ acpi_ns_dump_objects(acpi_object_type type, (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); } -#endif /* ACPI_FUTURE_USAGE */ -#ifdef ACPI_FUTURE_USAGE /******************************************************************************* * * FUNCTION: acpi_ns_dump_one_object_path, acpi_ns_get_max_depth @@ -810,7 +805,6 @@ acpi_ns_dump_object_paths(acpi_object_type type, (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); } -#endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* * diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index 0eb54315b4be..0c20980bbcf3 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -226,7 +226,7 @@ acpi_ns_check_object_type(struct acpi_evaluate_info *info, { union acpi_operand_object *return_object = *return_object_ptr; acpi_status status = AE_OK; - char type_buffer[48]; /* Room for 5 types */ + char type_buffer[96]; /* Room for 10 types */ /* A Namespace node should not get here, but make sure */ diff --git a/drivers/acpi/acpica/pstree.c b/drivers/acpi/acpica/pstree.c index 89984f30addc..cf2f2faf4f92 100644 --- a/drivers/acpi/acpica/pstree.c +++ b/drivers/acpi/acpica/pstree.c @@ -183,7 +183,6 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) } } -#ifdef ACPI_FUTURE_USAGE /******************************************************************************* * * FUNCTION: acpi_ps_get_depth_next @@ -317,4 +316,3 @@ union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op) return (child); } #endif -#endif /* ACPI_FUTURE_USAGE */ diff --git a/drivers/acpi/acpica/psutils.c b/drivers/acpi/acpica/psutils.c index 183cc1efbc51..71d2877cd2ce 100644 --- a/drivers/acpi/acpica/psutils.c +++ b/drivers/acpi/acpica/psutils.c @@ -205,7 +205,6 @@ u8 acpi_ps_is_leading_char(u32 c) /* * Get op's name (4-byte name segment) or 0 if unnamed */ -#ifdef ACPI_FUTURE_USAGE u32 acpi_ps_get_name(union acpi_parse_object * op) { @@ -219,7 +218,6 @@ u32 acpi_ps_get_name(union acpi_parse_object * op) return (op->named.name); } -#endif /* ACPI_FUTURE_USAGE */ /* * Set op's name diff --git a/drivers/acpi/acpica/rsdump.c b/drivers/acpi/acpica/rsdump.c index c428bb33204e..2a09288e7c57 100644 --- a/drivers/acpi/acpica/rsdump.c +++ b/drivers/acpi/acpica/rsdump.c @@ -51,7 +51,6 @@ ACPI_MODULE_NAME("rsdump") /* * All functions in this module are used by the AML Debugger only */ -#if defined(ACPI_DEBUGGER) /* Local prototypes */ static void acpi_rs_out_string(char *title, char *value); @@ -565,5 +564,3 @@ static void acpi_rs_dump_word_list(u16 length, u16 *data) acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]); } } - -#endif diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c index 52b024df0052..9486992edbb8 100644 --- a/drivers/acpi/acpica/rsutils.c +++ b/drivers/acpi/acpica/rsutils.c @@ -564,7 +564,6 @@ acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, * ******************************************************************************/ -#ifdef ACPI_FUTURE_USAGE acpi_status acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, struct acpi_buffer *ret_buffer) @@ -596,7 +595,6 @@ acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, acpi_ut_remove_reference(obj_desc); return_ACPI_STATUS(status); } -#endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* * diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c index de51f836ef68..1e8cd5723326 100644 --- a/drivers/acpi/acpica/rsxface.c +++ b/drivers/acpi/acpica/rsxface.c @@ -220,7 +220,7 @@ acpi_get_current_resources(acpi_handle device_handle, } ACPI_EXPORT_SYMBOL(acpi_get_current_resources) -#ifdef ACPI_FUTURE_USAGE + /******************************************************************************* * * FUNCTION: acpi_get_possible_resources @@ -262,7 +262,7 @@ acpi_get_possible_resources(acpi_handle device_handle, } ACPI_EXPORT_SYMBOL(acpi_get_possible_resources) -#endif /* ACPI_FUTURE_USAGE */ + /******************************************************************************* * * FUNCTION: acpi_set_current_resources diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c index 988e23b7795c..ecaaaffc0788 100644 --- a/drivers/acpi/acpica/utdecode.c +++ b/drivers/acpi/acpica/utdecode.c @@ -232,12 +232,27 @@ char *acpi_ut_get_type_name(acpi_object_type type) char *acpi_ut_get_object_type_name(union acpi_operand_object *obj_desc) { + ACPI_FUNCTION_TRACE(ut_get_object_type_name); if (!obj_desc) { - return ("[NULL Object Descriptor]"); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n")); + return_PTR("[NULL Object Descriptor]"); } - return (acpi_ut_get_type_name(obj_desc->common.type)); + /* These descriptor types share a common area */ + + if ((ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) && + (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_NAMED)) { + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Invalid object descriptor type: 0x%2.2X [%s] (%p)\n", + ACPI_GET_DESCRIPTOR_TYPE(obj_desc), + acpi_ut_get_descriptor_name(obj_desc), + obj_desc)); + + return_PTR("Invalid object"); + } + + return_PTR(acpi_ut_get_type_name(obj_desc->common.type)); } /******************************************************************************* @@ -407,8 +422,6 @@ static char *acpi_gbl_mutex_names[ACPI_NUM_MUTEX] = { "ACPI_MTX_Events", "ACPI_MTX_Caches", "ACPI_MTX_Memory", - "ACPI_MTX_CommandComplete", - "ACPI_MTX_CommandReady" }; char *acpi_ut_get_mutex_name(u32 mutex_id) diff --git a/drivers/acpi/acpica/utfileio.c b/drivers/acpi/acpica/utfileio.c index 75a94f52b4be..d435b7b7eb94 100644 --- a/drivers/acpi/acpica/utfileio.c +++ b/drivers/acpi/acpica/utfileio.c @@ -45,6 +45,7 @@ #include "accommon.h" #include "actables.h" #include "acapps.h" +#include "errno.h" #ifdef ACPI_ASL_COMPILER #include "aslcompiler.h" @@ -301,6 +302,11 @@ acpi_ut_read_table_from_file(char *filename, struct acpi_table_header ** table) file = fopen(filename, "rb"); if (!file) { perror("Could not open input file"); + + if (errno == ENOENT) { + return (AE_NOT_EXIST); + } + return (status); } diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index 28ab3a1d5ec1..ccd0745f011e 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -241,8 +241,6 @@ acpi_status acpi_ut_init_globals(void) acpi_gbl_disable_mem_tracking = FALSE; #endif - ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE); - return_ACPI_STATUS(AE_OK); } @@ -284,6 +282,19 @@ void acpi_ut_subsystem_shutdown(void) { ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); + /* Just exit if subsystem is already shutdown */ + + if (acpi_gbl_shutdown) { + ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); + return_VOID; + } + + /* Subsystem appears active, go ahead and shut it down */ + + acpi_gbl_shutdown = TRUE; + acpi_gbl_startup_flags = 0; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); + #ifndef ACPI_ASL_COMPILER /* Close the acpi_event Handling */ diff --git a/drivers/acpi/acpica/utmutex.c b/drivers/acpi/acpica/utmutex.c index 37b8b58fcd56..ce406e39b669 100644 --- a/drivers/acpi/acpica/utmutex.c +++ b/drivers/acpi/acpica/utmutex.c @@ -108,6 +108,21 @@ acpi_status acpi_ut_mutex_initialize(void) /* Create the reader/writer lock for namespace access */ status = acpi_ut_create_rw_lock(&acpi_gbl_namespace_rw_lock); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } +#ifdef ACPI_DEBUGGER + + /* Debugger Support */ + + status = acpi_os_create_mutex(&acpi_gbl_db_command_ready); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_os_create_mutex(&acpi_gbl_db_command_complete); +#endif + return_ACPI_STATUS(status); } @@ -147,6 +162,12 @@ void acpi_ut_mutex_terminate(void) /* Delete the reader/writer lock */ acpi_ut_delete_rw_lock(&acpi_gbl_namespace_rw_lock); + +#ifdef ACPI_DEBUGGER + acpi_os_delete_mutex(acpi_gbl_db_command_ready); + acpi_os_delete_mutex(acpi_gbl_db_command_complete); +#endif + return_VOID; } diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 4f332815db00..f9c8f9ce1f0f 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -67,23 +67,6 @@ acpi_status __init acpi_terminate(void) ACPI_FUNCTION_TRACE(acpi_terminate); - /* Just exit if subsystem is already shutdown */ - - if (acpi_gbl_shutdown) { - ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); - return_ACPI_STATUS(AE_OK); - } - - /* Subsystem appears active, go ahead and shut it down */ - - acpi_gbl_shutdown = TRUE; - acpi_gbl_startup_flags = 0; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); - - /* Terminate the AML Debugger if present */ - - ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); - /* Shutdown and free all resources */ acpi_ut_subsystem_shutdown(); @@ -270,7 +253,7 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function) } ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) -#endif /* ACPI_FUTURE_USAGE */ +#endif /***************************************************************************** * diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c new file mode 100644 index 000000000000..3c083d2cc434 --- /dev/null +++ b/drivers/acpi/cppc_acpi.c @@ -0,0 +1,733 @@ +/* + * CPPC (Collaborative Processor Performance Control) methods used by CPUfreq drivers. + * + * (C) Copyright 2014, 2015 Linaro Ltd. + * Author: Ashwin Chaugule <ashwin.chaugule@linaro.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + * + * CPPC describes a few methods for controlling CPU performance using + * information from a per CPU table called CPC. This table is described in + * the ACPI v5.0+ specification. The table consists of a list of + * registers which may be memory mapped or hardware registers and also may + * include some static integer values. + * + * CPU performance is on an abstract continuous scale as against a discretized + * P-state scale which is tied to CPU frequency only. In brief, the basic + * operation involves: + * + * - OS makes a CPU performance request. (Can provide min and max bounds) + * + * - Platform (such as BMC) is free to optimize request within requested bounds + * depending on power/thermal budgets etc. + * + * - Platform conveys its decision back to OS + * + * The communication between OS and platform occurs through another medium + * called (PCC) Platform Communication Channel. This is a generic mailbox like + * mechanism which includes doorbell semantics to indicate register updates. + * See drivers/mailbox/pcc.c for details on PCC. + * + * Finer details about the PCC and CPPC spec are available in the ACPI v5.1 and + * above specifications. + */ + +#define pr_fmt(fmt) "ACPI CPPC: " fmt + +#include <linux/cpufreq.h> +#include <linux/delay.h> + +#include <acpi/cppc_acpi.h> +/* + * Lock to provide mutually exclusive access to the PCC + * channel. e.g. When the remote updates the shared region + * with new data, the reader needs to be protected from + * other CPUs activity on the same channel. + */ +static DEFINE_SPINLOCK(pcc_lock); + +/* + * The cpc_desc structure contains the ACPI register details + * as described in the per CPU _CPC tables. The details + * include the type of register (e.g. PCC, System IO, FFH etc.) + * and destination addresses which lets us READ/WRITE CPU performance + * information using the appropriate I/O methods. + */ +static DEFINE_PER_CPU(struct cpc_desc *, cpc_desc_ptr); + +/* This layer handles all the PCC specifics for CPPC. */ +static struct mbox_chan *pcc_channel; +static void __iomem *pcc_comm_addr; +static u64 comm_base_addr; +static int pcc_subspace_idx = -1; +static u16 pcc_cmd_delay; +static bool pcc_channel_acquired; + +/* + * Arbitrary Retries in case the remote processor is slow to respond + * to PCC commands. + */ +#define NUM_RETRIES 500 + +static int send_pcc_cmd(u16 cmd) +{ + int retries, result = -EIO; + struct acpi_pcct_hw_reduced *pcct_ss = pcc_channel->con_priv; + struct acpi_pcct_shared_memory *generic_comm_base = + (struct acpi_pcct_shared_memory *) pcc_comm_addr; + u32 cmd_latency = pcct_ss->latency; + + /* Min time OS should wait before sending next command. */ + udelay(pcc_cmd_delay); + + /* Write to the shared comm region. */ + writew(cmd, &generic_comm_base->command); + + /* Flip CMD COMPLETE bit */ + writew(0, &generic_comm_base->status); + + /* Ring doorbell */ + result = mbox_send_message(pcc_channel, &cmd); + if (result < 0) { + pr_err("Err sending PCC mbox message. cmd:%d, ret:%d\n", + cmd, result); + return result; + } + + /* Wait for a nominal time to let platform process command. */ + udelay(cmd_latency); + + /* Retry in case the remote processor was too slow to catch up. */ + for (retries = NUM_RETRIES; retries > 0; retries--) { + if (readw_relaxed(&generic_comm_base->status) & PCC_CMD_COMPLETE) { + result = 0; + break; + } + } + + mbox_client_txdone(pcc_channel, result); + return result; +} + +static void cppc_chan_tx_done(struct mbox_client *cl, void *msg, int ret) +{ + if (ret) + pr_debug("TX did not complete: CMD sent:%x, ret:%d\n", + *(u16 *)msg, ret); + else + pr_debug("TX completed. CMD sent:%x, ret:%d\n", + *(u16 *)msg, ret); +} + +struct mbox_client cppc_mbox_cl = { + .tx_done = cppc_chan_tx_done, + .knows_txdone = true, +}; + +static int acpi_get_psd(struct cpc_desc *cpc_ptr, acpi_handle handle) +{ + int result = -EFAULT; + acpi_status status = AE_OK; + struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + struct acpi_buffer format = {sizeof("NNNNN"), "NNNNN"}; + struct acpi_buffer state = {0, NULL}; + union acpi_object *psd = NULL; + struct acpi_psd_package *pdomain; + + status = acpi_evaluate_object_typed(handle, "_PSD", NULL, &buffer, + ACPI_TYPE_PACKAGE); + if (ACPI_FAILURE(status)) + return -ENODEV; + + psd = buffer.pointer; + if (!psd || psd->package.count != 1) { + pr_debug("Invalid _PSD data\n"); + goto end; + } + + pdomain = &(cpc_ptr->domain_info); + + state.length = sizeof(struct acpi_psd_package); + state.pointer = pdomain; + + status = acpi_extract_package(&(psd->package.elements[0]), + &format, &state); + if (ACPI_FAILURE(status)) { + pr_debug("Invalid _PSD data for CPU:%d\n", cpc_ptr->cpu_id); + goto end; + } + + if (pdomain->num_entries != ACPI_PSD_REV0_ENTRIES) { + pr_debug("Unknown _PSD:num_entries for CPU:%d\n", cpc_ptr->cpu_id); + goto end; + } + + if (pdomain->revision != ACPI_PSD_REV0_REVISION) { + pr_debug("Unknown _PSD:revision for CPU: %d\n", cpc_ptr->cpu_id); + goto end; + } + + if (pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ALL && + pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ANY && + pdomain->coord_type != DOMAIN_COORD_TYPE_HW_ALL) { + pr_debug("Invalid _PSD:coord_type for CPU:%d\n", cpc_ptr->cpu_id); + goto end; + } + + result = 0; +end: + kfree(buffer.pointer); + return result; +} + +/** + * acpi_get_psd_map - Map the CPUs in a common freq domain. + * @all_cpu_data: Ptrs to CPU specific CPPC data including PSD info. + * + * Return: 0 for success or negative value for err. + */ +int acpi_get_psd_map(struct cpudata **all_cpu_data) +{ + int count_target; + int retval = 0; + unsigned int i, j; + cpumask_var_t covered_cpus; + struct cpudata *pr, *match_pr; + struct acpi_psd_package *pdomain; + struct acpi_psd_package *match_pdomain; + struct cpc_desc *cpc_ptr, *match_cpc_ptr; + + if (!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)) + return -ENOMEM; + + /* + * Now that we have _PSD data from all CPUs, lets setup P-state + * domain info. + */ + for_each_possible_cpu(i) { + pr = all_cpu_data[i]; + if (!pr) + continue; + + if (cpumask_test_cpu(i, covered_cpus)) + continue; + + cpc_ptr = per_cpu(cpc_desc_ptr, i); + if (!cpc_ptr) + continue; + + pdomain = &(cpc_ptr->domain_info); + cpumask_set_cpu(i, pr->shared_cpu_map); + cpumask_set_cpu(i, covered_cpus); + if (pdomain->num_processors <= 1) + continue; + + /* Validate the Domain info */ + count_target = pdomain->num_processors; + if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ALL) + pr->shared_type = CPUFREQ_SHARED_TYPE_ALL; + else if (pdomain->coord_type == DOMAIN_COORD_TYPE_HW_ALL) + pr->shared_type = CPUFREQ_SHARED_TYPE_HW; + else if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ANY) + pr->shared_type = CPUFREQ_SHARED_TYPE_ANY; + + for_each_possible_cpu(j) { + if (i == j) + continue; + + match_cpc_ptr = per_cpu(cpc_desc_ptr, j); + if (!match_cpc_ptr) + continue; + + match_pdomain = &(match_cpc_ptr->domain_info); + if (match_pdomain->domain != pdomain->domain) + continue; + + /* Here i and j are in the same domain */ + if (match_pdomain->num_processors != count_target) { + retval = -EFAULT; + goto err_ret; + } + + if (pdomain->coord_type != match_pdomain->coord_type) { + retval = -EFAULT; + goto err_ret; + } + + cpumask_set_cpu(j, covered_cpus); + cpumask_set_cpu(j, pr->shared_cpu_map); + } + + for_each_possible_cpu(j) { + if (i == j) + continue; + + match_pr = all_cpu_data[j]; + if (!match_pr) + continue; + + match_cpc_ptr = per_cpu(cpc_desc_ptr, j); + if (!match_cpc_ptr) + continue; + + match_pdomain = &(match_cpc_ptr->domain_info); + if (match_pdomain->domain != pdomain->domain) + continue; + + match_pr->shared_type = pr->shared_type; + cpumask_copy(match_pr->shared_cpu_map, + pr->shared_cpu_map); + } + } + +err_ret: + for_each_possible_cpu(i) { + pr = all_cpu_data[i]; + if (!pr) + continue; + + /* Assume no coordination on any error parsing domain info */ + if (retval) { + cpumask_clear(pr->shared_cpu_map); + cpumask_set_cpu(i, pr->shared_cpu_map); + pr->shared_type = CPUFREQ_SHARED_TYPE_ALL; + } + } + + free_cpumask_var(covered_cpus); + return retval; +} +EXPORT_SYMBOL_GPL(acpi_get_psd_map); + +static int register_pcc_channel(int pcc_subspace_idx) +{ + struct acpi_pcct_subspace *cppc_ss; + unsigned int len; + + if (pcc_subspace_idx >= 0) { + pcc_channel = pcc_mbox_request_channel(&cppc_mbox_cl, + pcc_subspace_idx); + + if (IS_ERR(pcc_channel)) { + pr_err("Failed to find PCC communication channel\n"); + return -ENODEV; + } + + /* + * The PCC mailbox controller driver should + * have parsed the PCCT (global table of all + * PCC channels) and stored pointers to the + * subspace communication region in con_priv. + */ + cppc_ss = pcc_channel->con_priv; + + if (!cppc_ss) { + pr_err("No PCC subspace found for CPPC\n"); + return -ENODEV; + } + + /* + * This is the shared communication region + * for the OS and Platform to communicate over. + */ + comm_base_addr = cppc_ss->base_address; + len = cppc_ss->length; + pcc_cmd_delay = cppc_ss->min_turnaround_time; + + pcc_comm_addr = acpi_os_ioremap(comm_base_addr, len); + if (!pcc_comm_addr) { + pr_err("Failed to ioremap PCC comm region mem\n"); + return -ENOMEM; + } + + /* Set flag so that we dont come here for each CPU. */ + pcc_channel_acquired = true; + } + + return 0; +} + +/* + * An example CPC table looks like the following. + * + * Name(_CPC, Package() + * { + * 17, + * NumEntries + * 1, + * // Revision + * ResourceTemplate(){Register(PCC, 32, 0, 0x120, 2)}, + * // Highest Performance + * ResourceTemplate(){Register(PCC, 32, 0, 0x124, 2)}, + * // Nominal Performance + * ResourceTemplate(){Register(PCC, 32, 0, 0x128, 2)}, + * // Lowest Nonlinear Performance + * ResourceTemplate(){Register(PCC, 32, 0, 0x12C, 2)}, + * // Lowest Performance + * ResourceTemplate(){Register(PCC, 32, 0, 0x130, 2)}, + * // Guaranteed Performance Register + * ResourceTemplate(){Register(PCC, 32, 0, 0x110, 2)}, + * // Desired Performance Register + * ResourceTemplate(){Register(SystemMemory, 0, 0, 0, 0)}, + * .. + * .. + * .. + * + * } + * Each Register() encodes how to access that specific register. + * e.g. a sample PCC entry has the following encoding: + * + * Register ( + * PCC, + * AddressSpaceKeyword + * 8, + * //RegisterBitWidth + * 8, + * //RegisterBitOffset + * 0x30, + * //RegisterAddress + * 9 + * //AccessSize (subspace ID) + * 0 + * ) + * } + */ + +/** + * acpi_cppc_processor_probe - Search for per CPU _CPC objects. + * @pr: Ptr to acpi_processor containing this CPUs logical Id. + * + * Return: 0 for success or negative value for err. + */ +int acpi_cppc_processor_probe(struct acpi_processor *pr) +{ + struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; + union acpi_object *out_obj, *cpc_obj; + struct cpc_desc *cpc_ptr; + struct cpc_reg *gas_t; + acpi_handle handle = pr->handle; + unsigned int num_ent, i, cpc_rev; + acpi_status status; + int ret = -EFAULT; + + /* Parse the ACPI _CPC table for this cpu. */ + status = acpi_evaluate_object_typed(handle, "_CPC", NULL, &output, + ACPI_TYPE_PACKAGE); + if (ACPI_FAILURE(status)) { + ret = -ENODEV; + goto out_buf_free; + } + + out_obj = (union acpi_object *) output.pointer; + + cpc_ptr = kzalloc(sizeof(struct cpc_desc), GFP_KERNEL); + if (!cpc_ptr) { + ret = -ENOMEM; + goto out_buf_free; + } + + /* First entry is NumEntries. */ + cpc_obj = &out_obj->package.elements[0]; + if (cpc_obj->type == ACPI_TYPE_INTEGER) { + num_ent = cpc_obj->integer.value; + } else { + pr_debug("Unexpected entry type(%d) for NumEntries\n", + cpc_obj->type); + goto out_free; + } + + /* Only support CPPCv2. Bail otherwise. */ + if (num_ent != CPPC_NUM_ENT) { + pr_debug("Firmware exports %d entries. Expected: %d\n", + num_ent, CPPC_NUM_ENT); + goto out_free; + } + + /* Second entry should be revision. */ + cpc_obj = &out_obj->package.elements[1]; + if (cpc_obj->type == ACPI_TYPE_INTEGER) { + cpc_rev = cpc_obj->integer.value; + } else { + pr_debug("Unexpected entry type(%d) for Revision\n", + cpc_obj->type); + goto out_free; + } + + if (cpc_rev != CPPC_REV) { + pr_debug("Firmware exports revision:%d. Expected:%d\n", + cpc_rev, CPPC_REV); + goto out_free; + } + + /* Iterate through remaining entries in _CPC */ + for (i = 2; i < num_ent; i++) { + cpc_obj = &out_obj->package.elements[i]; + + if (cpc_obj->type == ACPI_TYPE_INTEGER) { + cpc_ptr->cpc_regs[i-2].type = ACPI_TYPE_INTEGER; + cpc_ptr->cpc_regs[i-2].cpc_entry.int_value = cpc_obj->integer.value; + } else if (cpc_obj->type == ACPI_TYPE_BUFFER) { + gas_t = (struct cpc_reg *) + cpc_obj->buffer.pointer; + + /* + * The PCC Subspace index is encoded inside + * the CPC table entries. The same PCC index + * will be used for all the PCC entries, + * so extract it only once. + */ + if (gas_t->space_id == ACPI_ADR_SPACE_PLATFORM_COMM) { + if (pcc_subspace_idx < 0) + pcc_subspace_idx = gas_t->access_width; + else if (pcc_subspace_idx != gas_t->access_width) { + pr_debug("Mismatched PCC ids.\n"); + goto out_free; + } + } else if (gas_t->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) { + /* Support only PCC and SYS MEM type regs */ + pr_debug("Unsupported register type: %d\n", gas_t->space_id); + goto out_free; + } + + cpc_ptr->cpc_regs[i-2].type = ACPI_TYPE_BUFFER; + memcpy(&cpc_ptr->cpc_regs[i-2].cpc_entry.reg, gas_t, sizeof(*gas_t)); + } else { + pr_debug("Err in entry:%d in CPC table of CPU:%d \n", i, pr->id); + goto out_free; + } + } + /* Store CPU Logical ID */ + cpc_ptr->cpu_id = pr->id; + + /* Plug it into this CPUs CPC descriptor. */ + per_cpu(cpc_desc_ptr, pr->id) = cpc_ptr; + + /* Parse PSD data for this CPU */ + ret = acpi_get_psd(cpc_ptr, handle); + if (ret) + goto out_free; + + /* Register PCC channel once for all CPUs. */ + if (!pcc_channel_acquired) { + ret = register_pcc_channel(pcc_subspace_idx); + if (ret) + goto out_free; + } + + /* Everything looks okay */ + pr_debug("Parsed CPC struct for CPU: %d\n", pr->id); + + kfree(output.pointer); + return 0; + +out_free: + kfree(cpc_ptr); + +out_buf_free: + kfree(output.pointer); + return ret; +} +EXPORT_SYMBOL_GPL(acpi_cppc_processor_probe); + +/** + * acpi_cppc_processor_exit - Cleanup CPC structs. + * @pr: Ptr to acpi_processor containing this CPUs logical Id. + * + * Return: Void + */ +void acpi_cppc_processor_exit(struct acpi_processor *pr) +{ + struct cpc_desc *cpc_ptr; + cpc_ptr = per_cpu(cpc_desc_ptr, pr->id); + kfree(cpc_ptr); +} +EXPORT_SYMBOL_GPL(acpi_cppc_processor_exit); + +static u64 get_phys_addr(struct cpc_reg *reg) +{ + /* PCC communication addr space begins at byte offset 0x8. */ + if (reg->space_id == ACPI_ADR_SPACE_PLATFORM_COMM) + return (u64)comm_base_addr + 0x8 + reg->address; + else + return reg->address; +} + +static void cpc_read(struct cpc_reg *reg, u64 *val) +{ + u64 addr = get_phys_addr(reg); + + acpi_os_read_memory((acpi_physical_address)addr, + val, reg->bit_width); +} + +static void cpc_write(struct cpc_reg *reg, u64 val) +{ + u64 addr = get_phys_addr(reg); + + acpi_os_write_memory((acpi_physical_address)addr, + val, reg->bit_width); +} + +/** + * cppc_get_perf_caps - Get a CPUs performance capabilities. + * @cpunum: CPU from which to get capabilities info. + * @perf_caps: ptr to cppc_perf_caps. See cppc_acpi.h + * + * Return: 0 for success with perf_caps populated else -ERRNO. + */ +int cppc_get_perf_caps(int cpunum, struct cppc_perf_caps *perf_caps) +{ + struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpunum); + struct cpc_register_resource *highest_reg, *lowest_reg, *ref_perf, + *nom_perf; + u64 high, low, ref, nom; + int ret = 0; + + if (!cpc_desc) { + pr_debug("No CPC descriptor for CPU:%d\n", cpunum); + return -ENODEV; + } + + highest_reg = &cpc_desc->cpc_regs[HIGHEST_PERF]; + lowest_reg = &cpc_desc->cpc_regs[LOWEST_PERF]; + ref_perf = &cpc_desc->cpc_regs[REFERENCE_PERF]; + nom_perf = &cpc_desc->cpc_regs[NOMINAL_PERF]; + + spin_lock(&pcc_lock); + + /* Are any of the regs PCC ?*/ + if ((highest_reg->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) || + (lowest_reg->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) || + (ref_perf->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) || + (nom_perf->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM)) { + /* Ring doorbell once to update PCC subspace */ + if (send_pcc_cmd(CMD_READ)) { + ret = -EIO; + goto out_err; + } + } + + cpc_read(&highest_reg->cpc_entry.reg, &high); + perf_caps->highest_perf = high; + + cpc_read(&lowest_reg->cpc_entry.reg, &low); + perf_caps->lowest_perf = low; + + cpc_read(&ref_perf->cpc_entry.reg, &ref); + perf_caps->reference_perf = ref; + + cpc_read(&nom_perf->cpc_entry.reg, &nom); + perf_caps->nominal_perf = nom; + + if (!ref) + perf_caps->reference_perf = perf_caps->nominal_perf; + + if (!high || !low || !nom) + ret = -EFAULT; + +out_err: + spin_unlock(&pcc_lock); + return ret; +} +EXPORT_SYMBOL_GPL(cppc_get_perf_caps); + +/** + * cppc_get_perf_ctrs - Read a CPUs performance feedback counters. + * @cpunum: CPU from which to read counters. + * @perf_fb_ctrs: ptr to cppc_perf_fb_ctrs. See cppc_acpi.h + * + * Return: 0 for success with perf_fb_ctrs populated else -ERRNO. + */ +int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs) +{ + struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpunum); + struct cpc_register_resource *delivered_reg, *reference_reg; + u64 delivered, reference; + int ret = 0; + + if (!cpc_desc) { + pr_debug("No CPC descriptor for CPU:%d\n", cpunum); + return -ENODEV; + } + + delivered_reg = &cpc_desc->cpc_regs[DELIVERED_CTR]; + reference_reg = &cpc_desc->cpc_regs[REFERENCE_CTR]; + + spin_lock(&pcc_lock); + + /* Are any of the regs PCC ?*/ + if ((delivered_reg->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) || + (reference_reg->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM)) { + /* Ring doorbell once to update PCC subspace */ + if (send_pcc_cmd(CMD_READ)) { + ret = -EIO; + goto out_err; + } + } + + cpc_read(&delivered_reg->cpc_entry.reg, &delivered); + cpc_read(&reference_reg->cpc_entry.reg, &reference); + + if (!delivered || !reference) { + ret = -EFAULT; + goto out_err; + } + + perf_fb_ctrs->delivered = delivered; + perf_fb_ctrs->reference = reference; + + perf_fb_ctrs->delivered -= perf_fb_ctrs->prev_delivered; + perf_fb_ctrs->reference -= perf_fb_ctrs->prev_reference; + + perf_fb_ctrs->prev_delivered = delivered; + perf_fb_ctrs->prev_reference = reference; + +out_err: + spin_unlock(&pcc_lock); + return ret; +} +EXPORT_SYMBOL_GPL(cppc_get_perf_ctrs); + +/** + * cppc_set_perf - Set a CPUs performance controls. + * @cpu: CPU for which to set performance controls. + * @perf_ctrls: ptr to cppc_perf_ctrls. See cppc_acpi.h + * + * Return: 0 for success, -ERRNO otherwise. + */ +int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls) +{ + struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpu); + struct cpc_register_resource *desired_reg; + int ret = 0; + + if (!cpc_desc) { + pr_debug("No CPC descriptor for CPU:%d\n", cpu); + return -ENODEV; + } + + desired_reg = &cpc_desc->cpc_regs[DESIRED_PERF]; + + spin_lock(&pcc_lock); + + /* + * Skip writing MIN/MAX until Linux knows how to come up with + * useful values. + */ + cpc_write(&desired_reg->cpc_entry.reg, perf_ctrls->desired_perf); + + /* Is this a PCC reg ?*/ + if (desired_reg->cpc_entry.reg.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) { + /* Ring doorbell so Remote can get our perf request. */ + if (send_pcc_cmd(CMD_WRITE)) + ret = -EIO; + } + + spin_unlock(&pcc_lock); + + return ret; +} +EXPORT_SYMBOL_GPL(cppc_set_perf); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 4806b7f856c4..08a02cdc737c 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -963,23 +963,6 @@ int acpi_subsys_prepare(struct device *dev) EXPORT_SYMBOL_GPL(acpi_subsys_prepare); /** - * acpi_subsys_complete - Finalize device's resume during system resume. - * @dev: Device to handle. - */ -void acpi_subsys_complete(struct device *dev) -{ - pm_generic_complete(dev); - /* - * If the device had been runtime-suspended before the system went into - * the sleep state it is going out of and it has never been resumed till - * now, resume it in case the firmware powered it up. - */ - if (dev->power.direct_complete) - pm_request_resume(dev); -} -EXPORT_SYMBOL_GPL(acpi_subsys_complete); - -/** * acpi_subsys_suspend - Run the device driver's suspend callback. * @dev: Device to handle. * @@ -1047,7 +1030,7 @@ static struct dev_pm_domain acpi_general_pm_domain = { .runtime_resume = acpi_subsys_runtime_resume, #ifdef CONFIG_PM_SLEEP .prepare = acpi_subsys_prepare, - .complete = acpi_subsys_complete, + .complete = pm_complete_with_resume_check, .suspend = acpi_subsys_suspend, .suspend_late = acpi_subsys_suspend_late, .resume_early = acpi_subsys_resume_early, diff --git a/drivers/acpi/device_sysfs.c b/drivers/acpi/device_sysfs.c index 4ab4582e586b..707cf6213bc2 100644 --- a/drivers/acpi/device_sysfs.c +++ b/drivers/acpi/device_sysfs.c @@ -26,6 +26,106 @@ #include "internal.h" +static ssize_t acpi_object_path(acpi_handle handle, char *buf) +{ + struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL}; + int result; + + result = acpi_get_name(handle, ACPI_FULL_PATHNAME, &path); + if (result) + return result; + + result = sprintf(buf, "%s\n", (char*)path.pointer); + kfree(path.pointer); + return result; +} + +struct acpi_data_node_attr { + struct attribute attr; + ssize_t (*show)(struct acpi_data_node *, char *); + ssize_t (*store)(struct acpi_data_node *, const char *, size_t count); +}; + +#define DATA_NODE_ATTR(_name) \ + static struct acpi_data_node_attr data_node_##_name = \ + __ATTR(_name, 0444, data_node_show_##_name, NULL) + +static ssize_t data_node_show_path(struct acpi_data_node *dn, char *buf) +{ + return acpi_object_path(dn->handle, buf); +} + +DATA_NODE_ATTR(path); + +static struct attribute *acpi_data_node_default_attrs[] = { + &data_node_path.attr, + NULL +}; + +#define to_data_node(k) container_of(k, struct acpi_data_node, kobj) +#define to_attr(a) container_of(a, struct acpi_data_node_attr, attr) + +static ssize_t acpi_data_node_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct acpi_data_node *dn = to_data_node(kobj); + struct acpi_data_node_attr *dn_attr = to_attr(attr); + + return dn_attr->show ? dn_attr->show(dn, buf) : -ENXIO; +} + +static const struct sysfs_ops acpi_data_node_sysfs_ops = { + .show = acpi_data_node_attr_show, +}; + +static void acpi_data_node_release(struct kobject *kobj) +{ + struct acpi_data_node *dn = to_data_node(kobj); + complete(&dn->kobj_done); +} + +static struct kobj_type acpi_data_node_ktype = { + .sysfs_ops = &acpi_data_node_sysfs_ops, + .default_attrs = acpi_data_node_default_attrs, + .release = acpi_data_node_release, +}; + +static void acpi_expose_nondev_subnodes(struct kobject *kobj, + struct acpi_device_data *data) +{ + struct list_head *list = &data->subnodes; + struct acpi_data_node *dn; + + if (list_empty(list)) + return; + + list_for_each_entry(dn, list, sibling) { + int ret; + + init_completion(&dn->kobj_done); + ret = kobject_init_and_add(&dn->kobj, &acpi_data_node_ktype, + kobj, dn->name); + if (ret) + acpi_handle_err(dn->handle, "Failed to expose (%d)\n", ret); + else + acpi_expose_nondev_subnodes(&dn->kobj, &dn->data); + } +} + +static void acpi_hide_nondev_subnodes(struct acpi_device_data *data) +{ + struct list_head *list = &data->subnodes; + struct acpi_data_node *dn; + + if (list_empty(list)) + return; + + list_for_each_entry_reverse(dn, list, sibling) { + acpi_hide_nondev_subnodes(&dn->data); + kobject_put(&dn->kobj); + } +} + /** * create_pnp_modalias - Create hid/cid(s) string for modalias and uevent * @acpi_dev: ACPI device object. @@ -323,20 +423,12 @@ static ssize_t acpi_device_adr_show(struct device *dev, } static DEVICE_ATTR(adr, 0444, acpi_device_adr_show, NULL); -static ssize_t -acpi_device_path_show(struct device *dev, struct device_attribute *attr, char *buf) { +static ssize_t acpi_device_path_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ struct acpi_device *acpi_dev = to_acpi_device(dev); - struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL}; - int result; - - result = acpi_get_name(acpi_dev->handle, ACPI_FULL_PATHNAME, &path); - if (result) - goto end; - result = sprintf(buf, "%s\n", (char*)path.pointer); - kfree(path.pointer); -end: - return result; + return acpi_object_path(acpi_dev->handle, buf); } static DEVICE_ATTR(path, 0444, acpi_device_path_show, NULL); @@ -475,6 +567,8 @@ int acpi_device_setup_files(struct acpi_device *dev) &dev_attr_real_power_state); } + acpi_expose_nondev_subnodes(&dev->dev.kobj, &dev->data); + end: return result; } @@ -485,6 +579,8 @@ end: */ void acpi_device_remove_files(struct acpi_device *dev) { + acpi_hide_nondev_subnodes(&dev->data); + if (dev->flags.power_manageable) { device_remove_file(&dev->dev, &dev_attr_power_state); if (dev->power.flags.power_resources) diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 42c66b64c12c..f61a7c834540 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -441,17 +441,31 @@ static void acpi_ec_complete_query(struct acpi_ec *ec) static bool acpi_ec_guard_event(struct acpi_ec *ec) { + bool guarded = true; + unsigned long flags; + + spin_lock_irqsave(&ec->lock, flags); + /* + * If firmware SCI_EVT clearing timing is "event", we actually + * don't know when the SCI_EVT will be cleared by firmware after + * evaluating _Qxx, so we need to re-check SCI_EVT after waiting an + * acceptable period. + * + * The guarding period begins when EC_FLAGS_QUERY_PENDING is + * flagged, which means SCI_EVT check has just been performed. + * But if the current transaction is ACPI_EC_COMMAND_QUERY, the + * guarding should have already been performed (via + * EC_FLAGS_QUERY_GUARDING) and should not be applied so that the + * ACPI_EC_COMMAND_QUERY transaction can be transitioned into + * ACPI_EC_COMMAND_POLL state immediately. + */ if (ec_event_clearing == ACPI_EC_EVT_TIMING_STATUS || ec_event_clearing == ACPI_EC_EVT_TIMING_QUERY || !test_bit(EC_FLAGS_QUERY_PENDING, &ec->flags) || (ec->curr && ec->curr->command == ACPI_EC_COMMAND_QUERY)) - return false; - - /* - * Postpone the query submission to allow the firmware to proceed, - * we shouldn't check SCI_EVT before the firmware reflagging it. - */ - return true; + guarded = false; + spin_unlock_irqrestore(&ec->lock, flags); + return guarded; } static int ec_transaction_polled(struct acpi_ec *ec) @@ -597,6 +611,7 @@ static int ec_guard(struct acpi_ec *ec) unsigned long guard = usecs_to_jiffies(ec_polling_guard); unsigned long timeout = ec->timestamp + guard; + /* Ensure guarding period before polling EC status */ do { if (ec_busy_polling) { /* Perform busy polling */ @@ -606,11 +621,13 @@ static int ec_guard(struct acpi_ec *ec) } else { /* * Perform wait polling - * - * For SCI_EVT clearing timing of "event", - * performing guarding before re-checking the - * SCI_EVT. Otherwise, such guarding is not needed - * due to the old practices. + * 1. Wait the transaction to be completed by the + * GPE handler after the transaction enters + * ACPI_EC_COMMAND_POLL state. + * 2. A special guarding logic is also required + * for event clearing mode "event" before the + * transaction enters ACPI_EC_COMMAND_POLL + * state. */ if (!ec_transaction_polled(ec) && !acpi_ec_guard_event(ec)) @@ -620,7 +637,6 @@ static int ec_guard(struct acpi_ec *ec) guard)) return 0; } - /* Guard the register accesses for the polling modes */ } while (time_before(jiffies, timeout)); return -ETIME; } @@ -929,6 +945,23 @@ acpi_ec_get_query_handler(struct acpi_ec_query_handler *handler) return handler; } +static struct acpi_ec_query_handler * +acpi_ec_get_query_handler_by_value(struct acpi_ec *ec, u8 value) +{ + struct acpi_ec_query_handler *handler; + bool found = false; + + mutex_lock(&ec->mutex); + list_for_each_entry(handler, &ec->list, node) { + if (value == handler->query_bit) { + found = true; + break; + } + } + mutex_unlock(&ec->mutex); + return found ? acpi_ec_get_query_handler(handler) : NULL; +} + static void acpi_ec_query_handler_release(struct kref *kref) { struct acpi_ec_query_handler *handler = @@ -964,14 +997,15 @@ int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, } EXPORT_SYMBOL_GPL(acpi_ec_add_query_handler); -void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) +static void acpi_ec_remove_query_handlers(struct acpi_ec *ec, + bool remove_all, u8 query_bit) { struct acpi_ec_query_handler *handler, *tmp; LIST_HEAD(free_list); mutex_lock(&ec->mutex); list_for_each_entry_safe(handler, tmp, &ec->list, node) { - if (query_bit == handler->query_bit) { + if (remove_all || query_bit == handler->query_bit) { list_del_init(&handler->node); list_add(&handler->node, &free_list); } @@ -980,6 +1014,11 @@ void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) list_for_each_entry_safe(handler, tmp, &free_list, node) acpi_ec_put_query_handler(handler); } + +void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit) +{ + acpi_ec_remove_query_handlers(ec, false, query_bit); +} EXPORT_SYMBOL_GPL(acpi_ec_remove_query_handler); static struct acpi_ec_query *acpi_ec_create_query(u8 *pval) @@ -1025,7 +1064,6 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; int result; - struct acpi_ec_query_handler *handler; struct acpi_ec_query *q; q = acpi_ec_create_query(&value); @@ -1043,25 +1081,26 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 *data) if (result) goto err_exit; - mutex_lock(&ec->mutex); - result = -ENODATA; - list_for_each_entry(handler, &ec->list, node) { - if (value == handler->query_bit) { - result = 0; - q->handler = acpi_ec_get_query_handler(handler); - ec_dbg_evt("Query(0x%02x) scheduled", - q->handler->query_bit); - /* - * It is reported that _Qxx are evaluated in a - * parallel way on Windows: - * https://bugzilla.kernel.org/show_bug.cgi?id=94411 - */ - if (!schedule_work(&q->work)) - result = -EBUSY; - break; - } + q->handler = acpi_ec_get_query_handler_by_value(ec, value); + if (!q->handler) { + result = -ENODATA; + goto err_exit; + } + + /* + * It is reported that _Qxx are evaluated in a parallel way on + * Windows: + * https://bugzilla.kernel.org/show_bug.cgi?id=94411 + * + * Put this log entry before schedule_work() in order to make + * it appearing before any other log entries occurred during the + * work queue execution. + */ + ec_dbg_evt("Query(0x%02x) scheduled", value); + if (!schedule_work(&q->work)) { + ec_dbg_evt("Query(0x%02x) overlapped", value); + result = -EBUSY; } - mutex_unlock(&ec->mutex); err_exit: if (result && q) @@ -1354,19 +1393,13 @@ static int acpi_ec_add(struct acpi_device *device) static int acpi_ec_remove(struct acpi_device *device) { struct acpi_ec *ec; - struct acpi_ec_query_handler *handler, *tmp; if (!device) return -EINVAL; ec = acpi_driver_data(device); ec_remove_handlers(ec); - mutex_lock(&ec->mutex); - list_for_each_entry_safe(handler, tmp, &ec->list, node) { - list_del(&handler->node); - kfree(handler); - } - mutex_unlock(&ec->mutex); + acpi_ec_remove_query_handlers(ec, true, 0); release_region(ec->data_addr, 1); release_region(ec->command_addr, 1); device->driver_data = NULL; diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index b9657af751d1..1470ae4f98c0 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -351,13 +351,12 @@ static int acpi_platform_notify_remove(struct device *dev) return 0; } -int __init init_acpi_device_notify(void) +void __init init_acpi_device_notify(void) { if (platform_notify || platform_notify_remove) { printk(KERN_ERR PREFIX "Can't use platform_notify\n"); - return 0; + return; } platform_notify = acpi_platform_notify; platform_notify_remove = acpi_platform_notify_remove; - return 0; } diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 9e426210c2a8..c31787bef2d3 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -21,7 +21,7 @@ #define PREFIX "ACPI: " acpi_status acpi_os_initialize1(void); -int init_acpi_device_notify(void); +void init_acpi_device_notify(void); int acpi_scan_init(void); void acpi_pci_root_init(void); void acpi_pci_link_init(void); @@ -179,13 +179,13 @@ static inline int acpi_sleep_init(void) { return -ENXIO; } #endif #ifdef CONFIG_ACPI_SLEEP -int acpi_sleep_proc_init(void); +void acpi_sleep_proc_init(void); int suspend_nvs_alloc(void); void suspend_nvs_free(void); int suspend_nvs_save(void); void suspend_nvs_restore(void); #else -static inline int acpi_sleep_proc_init(void) { return 0; } +static inline void acpi_sleep_proc_init(void) {} static inline int suspend_nvs_alloc(void) { return 0; } static inline void suspend_nvs_free(void) {} static inline int suspend_nvs_save(void) { return 0; } diff --git a/drivers/acpi/nfit.c b/drivers/acpi/nfit.c index c1b8d03e262e..bc18aa213bb1 100644 --- a/drivers/acpi/nfit.c +++ b/drivers/acpi/nfit.c @@ -706,7 +706,7 @@ static ssize_t flags_show(struct device *dev, flags & ACPI_NFIT_MEM_SAVE_FAILED ? "save_fail " : "", flags & ACPI_NFIT_MEM_RESTORE_FAILED ? "restore_fail " : "", flags & ACPI_NFIT_MEM_FLUSH_FAILED ? "flush_fail " : "", - flags & ACPI_NFIT_MEM_ARMED ? "not_armed " : "", + flags & ACPI_NFIT_MEM_NOT_ARMED ? "not_armed " : "", flags & ACPI_NFIT_MEM_HEALTH_OBSERVED ? "smart_event " : ""); } static DEVICE_ATTR_RO(flags); @@ -815,7 +815,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc) flags |= NDD_ALIASING; mem_flags = __to_nfit_memdev(nfit_mem)->flags; - if (mem_flags & ACPI_NFIT_MEM_ARMED) + if (mem_flags & ACPI_NFIT_MEM_NOT_ARMED) flags |= NDD_UNARMED; rc = acpi_nfit_add_dimm(acpi_desc, nfit_mem, device_handle); @@ -839,7 +839,7 @@ static int acpi_nfit_register_dimms(struct acpi_nfit_desc *acpi_desc) mem_flags & ACPI_NFIT_MEM_SAVE_FAILED ? " save_fail" : "", mem_flags & ACPI_NFIT_MEM_RESTORE_FAILED ? " restore_fail":"", mem_flags & ACPI_NFIT_MEM_FLUSH_FAILED ? " flush_fail" : "", - mem_flags & ACPI_NFIT_MEM_ARMED ? " not_armed" : ""); + mem_flags & ACPI_NFIT_MEM_NOT_ARMED ? " not_armed" : ""); } diff --git a/drivers/acpi/nfit.h b/drivers/acpi/nfit.h index 7e740156b9c2..329a1eba0c16 100644 --- a/drivers/acpi/nfit.h +++ b/drivers/acpi/nfit.h @@ -24,7 +24,7 @@ #define UUID_NFIT_DIMM "4309ac30-0d11-11e4-9191-0800200c9a66" #define ACPI_NFIT_MEM_FAILED_MASK (ACPI_NFIT_MEM_SAVE_FAILED \ | ACPI_NFIT_MEM_RESTORE_FAILED | ACPI_NFIT_MEM_FLUSH_FAILED \ - | ACPI_NFIT_MEM_ARMED) + | ACPI_NFIT_MEM_NOT_ARMED) enum nfit_uuids { NFIT_SPA_VOLATILE, diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 739a4a6b3b9b..3935745ac78b 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -66,8 +66,6 @@ struct acpi_os_dpc { /* stuff for debugger support */ int acpi_in_debugger; EXPORT_SYMBOL(acpi_in_debugger); - -extern char line_buf[80]; #endif /*ENABLE_DEBUGGER */ static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl, @@ -81,6 +79,7 @@ static struct workqueue_struct *kacpid_wq; static struct workqueue_struct *kacpi_notify_wq; static struct workqueue_struct *kacpi_hotplug_wq; static bool acpi_os_initialized; +unsigned int acpi_sci_irq = INVALID_ACPI_IRQ; /* * This list of permanent mappings is for memory that may be accessed from @@ -856,17 +855,19 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler, acpi_irq_handler = NULL; return AE_NOT_ACQUIRED; } + acpi_sci_irq = irq; return AE_OK; } -acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler) +acpi_status acpi_os_remove_interrupt_handler(u32 gsi, acpi_osd_handler handler) { - if (irq != acpi_gbl_FADT.sci_interrupt) + if (gsi != acpi_gbl_FADT.sci_interrupt || !acpi_sci_irq_valid()) return AE_BAD_PARAMETER; - free_irq(irq, acpi_irq); + free_irq(acpi_sci_irq, acpi_irq); acpi_irq_handler = NULL; + acpi_sci_irq = INVALID_ACPI_IRQ; return AE_OK; } @@ -1180,8 +1181,8 @@ void acpi_os_wait_events_complete(void) * Make sure the GPE handler or the fixed event handler is not used * on another CPU after removal. */ - if (acpi_irq_handler) - synchronize_hardirq(acpi_gbl_FADT.sci_interrupt); + if (acpi_sci_irq_valid()) + synchronize_hardirq(acpi_sci_irq); flush_workqueue(kacpid_wq); flush_workqueue(kacpi_notify_wq); } @@ -1345,15 +1346,13 @@ acpi_status acpi_os_signal_semaphore(acpi_handle handle, u32 units) return AE_OK; } -#ifdef ACPI_FUTURE_USAGE -u32 acpi_os_get_line(char *buffer) +acpi_status acpi_os_get_line(char *buffer, u32 buffer_length, u32 *bytes_read) { - #ifdef ENABLE_DEBUGGER if (acpi_in_debugger) { u32 chars; - kdb_read(buffer, sizeof(line_buf)); + kdb_read(buffer, buffer_length); /* remove the CR kdb includes */ chars = strlen(buffer) - 1; @@ -1361,9 +1360,8 @@ u32 acpi_os_get_line(char *buffer) } #endif - return 0; + return AE_OK; } -#endif /* ACPI_FUTURE_USAGE */ acpi_status acpi_os_signal(u32 function, void *info) { diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 393706a5261b..850d7bf0c873 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -652,6 +652,210 @@ static void acpi_pci_root_remove(struct acpi_device *device) kfree(root); } +/* + * Following code to support acpi_pci_root_create() is copied from + * arch/x86/pci/acpi.c and modified so it could be reused by x86, IA64 + * and ARM64. + */ +static void acpi_pci_root_validate_resources(struct device *dev, + struct list_head *resources, + unsigned long type) +{ + LIST_HEAD(list); + struct resource *res1, *res2, *root = NULL; + struct resource_entry *tmp, *entry, *entry2; + + BUG_ON((type & (IORESOURCE_MEM | IORESOURCE_IO)) == 0); + root = (type & IORESOURCE_MEM) ? &iomem_resource : &ioport_resource; + + list_splice_init(resources, &list); + resource_list_for_each_entry_safe(entry, tmp, &list) { + bool free = false; + resource_size_t end; + + res1 = entry->res; + if (!(res1->flags & type)) + goto next; + + /* Exclude non-addressable range or non-addressable portion */ + end = min(res1->end, root->end); + if (end <= res1->start) { + dev_info(dev, "host bridge window %pR (ignored, not CPU addressable)\n", + res1); + free = true; + goto next; + } else if (res1->end != end) { + dev_info(dev, "host bridge window %pR ([%#llx-%#llx] ignored, not CPU addressable)\n", + res1, (unsigned long long)end + 1, + (unsigned long long)res1->end); + res1->end = end; + } + + resource_list_for_each_entry(entry2, resources) { + res2 = entry2->res; + if (!(res2->flags & type)) + continue; + + /* + * I don't like throwing away windows because then + * our resources no longer match the ACPI _CRS, but + * the kernel resource tree doesn't allow overlaps. + */ + if (resource_overlaps(res1, res2)) { + res2->start = min(res1->start, res2->start); + res2->end = max(res1->end, res2->end); + dev_info(dev, "host bridge window expanded to %pR; %pR ignored\n", + res2, res1); + free = true; + goto next; + } + } + +next: + resource_list_del(entry); + if (free) + resource_list_free_entry(entry); + else + resource_list_add_tail(entry, resources); + } +} + +int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info) +{ + int ret; + struct list_head *list = &info->resources; + struct acpi_device *device = info->bridge; + struct resource_entry *entry, *tmp; + unsigned long flags; + + flags = IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_MEM_8AND16BIT; + ret = acpi_dev_get_resources(device, list, + acpi_dev_filter_resource_type_cb, + (void *)flags); + if (ret < 0) + dev_warn(&device->dev, + "failed to parse _CRS method, error code %d\n", ret); + else if (ret == 0) + dev_dbg(&device->dev, + "no IO and memory resources present in _CRS\n"); + else { + resource_list_for_each_entry_safe(entry, tmp, list) { + if (entry->res->flags & IORESOURCE_DISABLED) + resource_list_destroy_entry(entry); + else + entry->res->name = info->name; + } + acpi_pci_root_validate_resources(&device->dev, list, + IORESOURCE_MEM); + acpi_pci_root_validate_resources(&device->dev, list, + IORESOURCE_IO); + } + + return ret; +} + +static void pci_acpi_root_add_resources(struct acpi_pci_root_info *info) +{ + struct resource_entry *entry, *tmp; + struct resource *res, *conflict, *root = NULL; + + resource_list_for_each_entry_safe(entry, tmp, &info->resources) { + res = entry->res; + if (res->flags & IORESOURCE_MEM) + root = &iomem_resource; + else if (res->flags & IORESOURCE_IO) + root = &ioport_resource; + else + continue; + + conflict = insert_resource_conflict(root, res); + if (conflict) { + dev_info(&info->bridge->dev, + "ignoring host bridge window %pR (conflicts with %s %pR)\n", + res, conflict->name, conflict); + resource_list_destroy_entry(entry); + } + } +} + +static void __acpi_pci_root_release_info(struct acpi_pci_root_info *info) +{ + struct resource *res; + struct resource_entry *entry, *tmp; + + if (!info) + return; + + resource_list_for_each_entry_safe(entry, tmp, &info->resources) { + res = entry->res; + if (res->parent && + (res->flags & (IORESOURCE_MEM | IORESOURCE_IO))) + release_resource(res); + resource_list_destroy_entry(entry); + } + + info->ops->release_info(info); +} + +static void acpi_pci_root_release_info(struct pci_host_bridge *bridge) +{ + struct resource *res; + struct resource_entry *entry; + + resource_list_for_each_entry(entry, &bridge->windows) { + res = entry->res; + if (res->parent && + (res->flags & (IORESOURCE_MEM | IORESOURCE_IO))) + release_resource(res); + } + __acpi_pci_root_release_info(bridge->release_data); +} + +struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, + struct acpi_pci_root_ops *ops, + struct acpi_pci_root_info *info, + void *sysdata) +{ + int ret, busnum = root->secondary.start; + struct acpi_device *device = root->device; + int node = acpi_get_node(device->handle); + struct pci_bus *bus; + + info->root = root; + info->bridge = device; + info->ops = ops; + INIT_LIST_HEAD(&info->resources); + snprintf(info->name, sizeof(info->name), "PCI Bus %04x:%02x", + root->segment, busnum); + + if (ops->init_info && ops->init_info(info)) + goto out_release_info; + if (ops->prepare_resources) + ret = ops->prepare_resources(info); + else + ret = acpi_pci_probe_root_resources(info); + if (ret < 0) + goto out_release_info; + + pci_acpi_root_add_resources(info); + pci_add_resource(&info->resources, &root->secondary); + bus = pci_create_root_bus(NULL, busnum, ops->pci_ops, + sysdata, &info->resources); + if (!bus) + goto out_release_info; + + pci_scan_child_bus(bus); + pci_set_host_bridge_release(to_pci_host_bridge(bus->bridge), + acpi_pci_root_release_info, info); + if (node != NUMA_NO_NODE) + dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node); + return bus; + +out_release_info: + __acpi_pci_root_release_info(info); + return NULL; +} + void __init acpi_pci_root_init(void) { acpi_hest_init(); diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index 75c28eae8860..2a358154b770 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -144,11 +144,9 @@ static const struct file_operations acpi_system_wakeup_device_fops = { .release = single_release, }; -int __init acpi_sleep_proc_init(void) +void __init acpi_sleep_proc_init(void) { /* 'wakeup device' [R/W] */ proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR, acpi_root_dir, &acpi_system_wakeup_device_fops); - - return 0; } diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 51e658f21e95..f4e02ae93f58 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -242,6 +242,10 @@ static int __acpi_processor_start(struct acpi_device *device) if (pr->flags.need_hotplug_init) return 0; + result = acpi_cppc_processor_probe(pr); + if (result) + return -ENODEV; + if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) acpi_processor_power_init(pr); @@ -287,6 +291,8 @@ static int acpi_processor_stop(struct device *dev) acpi_pss_perf_exit(pr, device); + acpi_cppc_processor_exit(pr); + return 0; } diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index 6d99450549c5..88f4306744c0 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -19,11 +19,133 @@ #include "internal.h" +static int acpi_data_get_property_array(struct acpi_device_data *data, + const char *name, + acpi_object_type type, + const union acpi_object **obj); + /* ACPI _DSD device properties UUID: daffd814-6eba-4d8c-8a91-bc9bbf4aa301 */ static const u8 prp_uuid[16] = { 0x14, 0xd8, 0xff, 0xda, 0xba, 0x6e, 0x8c, 0x4d, 0x8a, 0x91, 0xbc, 0x9b, 0xbf, 0x4a, 0xa3, 0x01 }; +/* ACPI _DSD data subnodes UUID: dbb8e3e6-5886-4ba6-8795-1319f52a966b */ +static const u8 ads_uuid[16] = { + 0xe6, 0xe3, 0xb8, 0xdb, 0x86, 0x58, 0xa6, 0x4b, + 0x87, 0x95, 0x13, 0x19, 0xf5, 0x2a, 0x96, 0x6b +}; + +static bool acpi_enumerate_nondev_subnodes(acpi_handle scope, + const union acpi_object *desc, + struct acpi_device_data *data); +static bool acpi_extract_properties(const union acpi_object *desc, + struct acpi_device_data *data); + +static bool acpi_nondev_subnode_ok(acpi_handle scope, + const union acpi_object *link, + struct list_head *list) +{ + struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER }; + struct acpi_data_node *dn; + acpi_handle handle; + acpi_status status; + + dn = kzalloc(sizeof(*dn), GFP_KERNEL); + if (!dn) + return false; + + dn->name = link->package.elements[0].string.pointer; + dn->fwnode.type = FWNODE_ACPI_DATA; + INIT_LIST_HEAD(&dn->data.subnodes); + + status = acpi_get_handle(scope, link->package.elements[1].string.pointer, + &handle); + if (ACPI_FAILURE(status)) + goto fail; + + status = acpi_evaluate_object_typed(handle, NULL, NULL, &buf, + ACPI_TYPE_PACKAGE); + if (ACPI_FAILURE(status)) + goto fail; + + if (acpi_extract_properties(buf.pointer, &dn->data)) + dn->handle = handle; + + /* + * The scope for the subnode object lookup is the one of the namespace + * node (device) containing the object that has returned the package. + * That is, it's the scope of that object's parent. + */ + status = acpi_get_parent(handle, &scope); + if (ACPI_SUCCESS(status) + && acpi_enumerate_nondev_subnodes(scope, buf.pointer, &dn->data)) + dn->handle = handle; + + if (dn->handle) { + dn->data.pointer = buf.pointer; + list_add_tail(&dn->sibling, list); + return true; + } + + acpi_handle_debug(handle, "Invalid properties/subnodes data, skipping\n"); + + fail: + ACPI_FREE(buf.pointer); + kfree(dn); + return false; +} + +static int acpi_add_nondev_subnodes(acpi_handle scope, + const union acpi_object *links, + struct list_head *list) +{ + bool ret = false; + int i; + + for (i = 0; i < links->package.count; i++) { + const union acpi_object *link; + + link = &links->package.elements[i]; + /* Only two elements allowed, both must be strings. */ + if (link->package.count == 2 + && link->package.elements[0].type == ACPI_TYPE_STRING + && link->package.elements[1].type == ACPI_TYPE_STRING + && acpi_nondev_subnode_ok(scope, link, list)) + ret = true; + } + + return ret; +} + +static bool acpi_enumerate_nondev_subnodes(acpi_handle scope, + const union acpi_object *desc, + struct acpi_device_data *data) +{ + int i; + + /* Look for the ACPI data subnodes UUID. */ + for (i = 0; i < desc->package.count; i += 2) { + const union acpi_object *uuid, *links; + + uuid = &desc->package.elements[i]; + links = &desc->package.elements[i + 1]; + + /* + * The first element must be a UUID and the second one must be + * a package. + */ + if (uuid->type != ACPI_TYPE_BUFFER || uuid->buffer.length != 16 + || links->type != ACPI_TYPE_PACKAGE) + break; + + if (memcmp(uuid->buffer.pointer, ads_uuid, sizeof(ads_uuid))) + continue; + + return acpi_add_nondev_subnodes(scope, links, &data->subnodes); + } + + return false; +} static bool acpi_property_value_ok(const union acpi_object *value) { @@ -81,8 +203,8 @@ static void acpi_init_of_compatible(struct acpi_device *adev) const union acpi_object *of_compatible; int ret; - ret = acpi_dev_get_property_array(adev, "compatible", ACPI_TYPE_STRING, - &of_compatible); + ret = acpi_data_get_property_array(&adev->data, "compatible", + ACPI_TYPE_STRING, &of_compatible); if (ret) { ret = acpi_dev_get_property(adev, "compatible", ACPI_TYPE_STRING, &of_compatible); @@ -100,34 +222,13 @@ static void acpi_init_of_compatible(struct acpi_device *adev) adev->flags.of_compatible_ok = 1; } -void acpi_init_properties(struct acpi_device *adev) +static bool acpi_extract_properties(const union acpi_object *desc, + struct acpi_device_data *data) { - struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER }; - bool acpi_of = false; - struct acpi_hardware_id *hwid; - const union acpi_object *desc; - acpi_status status; int i; - /* - * Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in - * Device Tree compatible properties for this device. - */ - list_for_each_entry(hwid, &adev->pnp.ids, list) { - if (!strcmp(hwid->id, ACPI_DT_NAMESPACE_HID)) { - acpi_of = true; - break; - } - } - - status = acpi_evaluate_object_typed(adev->handle, "_DSD", NULL, &buf, - ACPI_TYPE_PACKAGE); - if (ACPI_FAILURE(status)) - goto out; - - desc = buf.pointer; if (desc->package.count % 2) - goto fail; + return false; /* Look for the device properties UUID. */ for (i = 0; i < desc->package.count; i += 2) { @@ -154,18 +255,50 @@ void acpi_init_properties(struct acpi_device *adev) if (!acpi_properties_format_valid(properties)) break; - adev->data.pointer = buf.pointer; - adev->data.properties = properties; + data->properties = properties; + return true; + } - if (acpi_of) - acpi_init_of_compatible(adev); + return false; +} +void acpi_init_properties(struct acpi_device *adev) +{ + struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER }; + struct acpi_hardware_id *hwid; + acpi_status status; + bool acpi_of = false; + + INIT_LIST_HEAD(&adev->data.subnodes); + + /* + * Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in + * Device Tree compatible properties for this device. + */ + list_for_each_entry(hwid, &adev->pnp.ids, list) { + if (!strcmp(hwid->id, ACPI_DT_NAMESPACE_HID)) { + acpi_of = true; + break; + } + } + + status = acpi_evaluate_object_typed(adev->handle, "_DSD", NULL, &buf, + ACPI_TYPE_PACKAGE); + if (ACPI_FAILURE(status)) goto out; + + if (acpi_extract_properties(buf.pointer, &adev->data)) { + adev->data.pointer = buf.pointer; + if (acpi_of) + acpi_init_of_compatible(adev); } + if (acpi_enumerate_nondev_subnodes(adev->handle, buf.pointer, &adev->data)) + adev->data.pointer = buf.pointer; - fail: - dev_dbg(&adev->dev, "Returned _DSD data is not valid, skipping\n"); - ACPI_FREE(buf.pointer); + if (!adev->data.pointer) { + acpi_handle_debug(adev->handle, "Invalid _DSD data, skipping\n"); + ACPI_FREE(buf.pointer); + } out: if (acpi_of && !adev->flags.of_compatible_ok) @@ -173,8 +306,25 @@ void acpi_init_properties(struct acpi_device *adev) ACPI_DT_NAMESPACE_HID " requires 'compatible' property\n"); } +static void acpi_destroy_nondev_subnodes(struct list_head *list) +{ + struct acpi_data_node *dn, *next; + + if (list_empty(list)) + return; + + list_for_each_entry_safe_reverse(dn, next, list, sibling) { + acpi_destroy_nondev_subnodes(&dn->data.subnodes); + wait_for_completion(&dn->kobj_done); + list_del(&dn->sibling); + ACPI_FREE((void *)dn->data.pointer); + kfree(dn); + } +} + void acpi_free_properties(struct acpi_device *adev) { + acpi_destroy_nondev_subnodes(&adev->data.subnodes); ACPI_FREE((void *)adev->data.pointer); adev->data.of_compatible = NULL; adev->data.pointer = NULL; @@ -182,8 +332,8 @@ void acpi_free_properties(struct acpi_device *adev) } /** - * acpi_dev_get_property - return an ACPI property with given name - * @adev: ACPI device to get property + * acpi_data_get_property - return an ACPI property with given name + * @data: ACPI device deta object to get the property from * @name: Name of the property * @type: Expected property type * @obj: Location to store the property value (if not %NULL) @@ -192,26 +342,27 @@ void acpi_free_properties(struct acpi_device *adev) * object at the location pointed to by @obj if found. * * Callers must not attempt to free the returned objects. These objects will be - * freed by the ACPI core automatically during the removal of @adev. + * freed by the ACPI core automatically during the removal of @data. * * Return: %0 if property with @name has been found (success), * %-EINVAL if the arguments are invalid, * %-ENODATA if the property doesn't exist, * %-EPROTO if the property value type doesn't match @type. */ -int acpi_dev_get_property(struct acpi_device *adev, const char *name, - acpi_object_type type, const union acpi_object **obj) +static int acpi_data_get_property(struct acpi_device_data *data, + const char *name, acpi_object_type type, + const union acpi_object **obj) { const union acpi_object *properties; int i; - if (!adev || !name) + if (!data || !name) return -EINVAL; - if (!adev->data.pointer || !adev->data.properties) + if (!data->pointer || !data->properties) return -ENODATA; - properties = adev->data.properties; + properties = data->properties; for (i = 0; i < properties->package.count; i++) { const union acpi_object *propname, *propvalue; const union acpi_object *property; @@ -232,11 +383,50 @@ int acpi_dev_get_property(struct acpi_device *adev, const char *name, } return -ENODATA; } + +/** + * acpi_dev_get_property - return an ACPI property with given name. + * @adev: ACPI device to get the property from. + * @name: Name of the property. + * @type: Expected property type. + * @obj: Location to store the property value (if not %NULL). + */ +int acpi_dev_get_property(struct acpi_device *adev, const char *name, + acpi_object_type type, const union acpi_object **obj) +{ + return adev ? acpi_data_get_property(&adev->data, name, type, obj) : -EINVAL; +} EXPORT_SYMBOL_GPL(acpi_dev_get_property); +static struct acpi_device_data *acpi_device_data_of_node(struct fwnode_handle *fwnode) +{ + if (fwnode->type == FWNODE_ACPI) { + struct acpi_device *adev = to_acpi_device_node(fwnode); + return &adev->data; + } else if (fwnode->type == FWNODE_ACPI_DATA) { + struct acpi_data_node *dn = to_acpi_data_node(fwnode); + return &dn->data; + } + return NULL; +} + +/** + * acpi_node_prop_get - return an ACPI property with given name. + * @fwnode: Firmware node to get the property from. + * @propname: Name of the property. + * @valptr: Location to store a pointer to the property value (if not %NULL). + */ +int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname, + void **valptr) +{ + return acpi_data_get_property(acpi_device_data_of_node(fwnode), + propname, ACPI_TYPE_ANY, + (const union acpi_object **)valptr); +} + /** - * acpi_dev_get_property_array - return an ACPI array property with given name - * @adev: ACPI device to get property + * acpi_data_get_property_array - return an ACPI array property with given name + * @adev: ACPI data object to get the property from * @name: Name of the property * @type: Expected type of array elements * @obj: Location to store a pointer to the property value (if not NULL) @@ -245,7 +435,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_property); * ACPI object at the location pointed to by @obj if found. * * Callers must not attempt to free the returned objects. Those objects will be - * freed by the ACPI core automatically during the removal of @adev. + * freed by the ACPI core automatically during the removal of @data. * * Return: %0 if array property (package) with @name has been found (success), * %-EINVAL if the arguments are invalid, @@ -253,14 +443,15 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_property); * %-EPROTO if the property is not a package or the type of its elements * doesn't match @type. */ -int acpi_dev_get_property_array(struct acpi_device *adev, const char *name, - acpi_object_type type, - const union acpi_object **obj) +static int acpi_data_get_property_array(struct acpi_device_data *data, + const char *name, + acpi_object_type type, + const union acpi_object **obj) { const union acpi_object *prop; int ret, i; - ret = acpi_dev_get_property(adev, name, ACPI_TYPE_PACKAGE, &prop); + ret = acpi_data_get_property(data, name, ACPI_TYPE_PACKAGE, &prop); if (ret) return ret; @@ -275,12 +466,11 @@ int acpi_dev_get_property_array(struct acpi_device *adev, const char *name, return 0; } -EXPORT_SYMBOL_GPL(acpi_dev_get_property_array); /** - * acpi_dev_get_property_reference - returns handle to the referenced object - * @adev: ACPI device to get property - * @name: Name of the property + * acpi_data_get_property_reference - returns handle to the referenced object + * @data: ACPI device data object containing the property + * @propname: Name of the property * @index: Index of the reference to return * @args: Location to store the returned reference with optional arguments * @@ -294,16 +484,16 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_property_array); * * Return: %0 on success, negative error code on failure. */ -int acpi_dev_get_property_reference(struct acpi_device *adev, - const char *name, size_t index, - struct acpi_reference_args *args) +static int acpi_data_get_property_reference(struct acpi_device_data *data, + const char *propname, size_t index, + struct acpi_reference_args *args) { const union acpi_object *element, *end; const union acpi_object *obj; struct acpi_device *device; int ret, idx = 0; - ret = acpi_dev_get_property(adev, name, ACPI_TYPE_ANY, &obj); + ret = acpi_data_get_property(data, propname, ACPI_TYPE_ANY, &obj); if (ret) return ret; @@ -378,17 +568,27 @@ int acpi_dev_get_property_reference(struct acpi_device *adev, return -EPROTO; } -EXPORT_SYMBOL_GPL(acpi_dev_get_property_reference); -int acpi_dev_prop_get(struct acpi_device *adev, const char *propname, - void **valptr) +/** + * acpi_node_get_property_reference - get a handle to the referenced object. + * @fwnode: Firmware node to get the property from. + * @propname: Name of the property. + * @index: Index of the reference to return. + * @args: Location to store the returned reference with optional arguments. + */ +int acpi_node_get_property_reference(struct fwnode_handle *fwnode, + const char *name, size_t index, + struct acpi_reference_args *args) { - return acpi_dev_get_property(adev, propname, ACPI_TYPE_ANY, - (const union acpi_object **)valptr); + struct acpi_device_data *data = acpi_device_data_of_node(fwnode); + + return data ? acpi_data_get_property_reference(data, name, index, args) : -EINVAL; } +EXPORT_SYMBOL_GPL(acpi_node_get_property_reference); -int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, - enum dev_prop_type proptype, void *val) +static int acpi_data_prop_read_single(struct acpi_device_data *data, + const char *propname, + enum dev_prop_type proptype, void *val) { const union acpi_object *obj; int ret; @@ -397,7 +597,7 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, return -EINVAL; if (proptype >= DEV_PROP_U8 && proptype <= DEV_PROP_U64) { - ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_INTEGER, &obj); + ret = acpi_data_get_property(data, propname, ACPI_TYPE_INTEGER, &obj); if (ret) return ret; @@ -422,7 +622,7 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, break; } } else if (proptype == DEV_PROP_STRING) { - ret = acpi_dev_get_property(adev, propname, ACPI_TYPE_STRING, &obj); + ret = acpi_data_get_property(data, propname, ACPI_TYPE_STRING, &obj); if (ret) return ret; @@ -433,6 +633,12 @@ int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, return ret; } +int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, + enum dev_prop_type proptype, void *val) +{ + return adev ? acpi_data_prop_read_single(&adev->data, propname, proptype, val) : -EINVAL; +} + static int acpi_copy_property_array_u8(const union acpi_object *items, u8 *val, size_t nval) { @@ -509,20 +715,22 @@ static int acpi_copy_property_array_string(const union acpi_object *items, return 0; } -int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, - enum dev_prop_type proptype, void *val, size_t nval) +static int acpi_data_prop_read(struct acpi_device_data *data, + const char *propname, + enum dev_prop_type proptype, + void *val, size_t nval) { const union acpi_object *obj; const union acpi_object *items; int ret; if (val && nval == 1) { - ret = acpi_dev_prop_read_single(adev, propname, proptype, val); + ret = acpi_data_prop_read_single(data, propname, proptype, val); if (!ret) return ret; } - ret = acpi_dev_get_property_array(adev, propname, ACPI_TYPE_ANY, &obj); + ret = acpi_data_get_property_array(data, propname, ACPI_TYPE_ANY, &obj); if (ret) return ret; @@ -558,3 +766,84 @@ int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, } return ret; } + +int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, + enum dev_prop_type proptype, void *val, size_t nval) +{ + return adev ? acpi_data_prop_read(&adev->data, propname, proptype, val, nval) : -EINVAL; +} + +/** + * acpi_node_prop_read - retrieve the value of an ACPI property with given name. + * @fwnode: Firmware node to get the property from. + * @propname: Name of the property. + * @proptype: Expected property type. + * @val: Location to store the property value (if not %NULL). + * @nval: Size of the array pointed to by @val. + * + * If @val is %NULL, return the number of array elements comprising the value + * of the property. Otherwise, read at most @nval values to the array at the + * location pointed to by @val. + */ +int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname, + enum dev_prop_type proptype, void *val, size_t nval) +{ + return acpi_data_prop_read(acpi_device_data_of_node(fwnode), + propname, proptype, val, nval); +} + +/** + * acpi_get_next_subnode - Return the next child node handle for a device. + * @dev: Device to find the next child node for. + * @child: Handle to one of the device's child nodes or a null handle. + */ +struct fwnode_handle *acpi_get_next_subnode(struct device *dev, + struct fwnode_handle *child) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + struct list_head *head, *next; + + if (!adev) + return NULL; + + if (!child || child->type == FWNODE_ACPI) { + head = &adev->children; + if (list_empty(head)) + goto nondev; + + if (child) { + adev = to_acpi_device_node(child); + next = adev->node.next; + if (next == head) { + child = NULL; + goto nondev; + } + adev = list_entry(next, struct acpi_device, node); + } else { + adev = list_first_entry(head, struct acpi_device, node); + } + return acpi_fwnode_handle(adev); + } + + nondev: + if (!child || child->type == FWNODE_ACPI_DATA) { + struct acpi_data_node *dn; + + head = &adev->data.subnodes; + if (list_empty(head)) + return NULL; + + if (child) { + dn = to_acpi_data_node(child); + next = dn->sibling.next; + if (next == head) + return NULL; + + dn = list_entry(next, struct acpi_data_node, sibling); + } else { + dn = list_first_entry(head, struct acpi_data_node, sibling); + } + return &dn->fwnode; + } + return NULL; +} diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c index 15d22db05054..cdc5c2599beb 100644 --- a/drivers/acpi/resource.c +++ b/drivers/acpi/resource.c @@ -119,7 +119,7 @@ bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res) EXPORT_SYMBOL_GPL(acpi_dev_resource_memory); static void acpi_dev_ioresource_flags(struct resource *res, u64 len, - u8 io_decode) + u8 io_decode, u8 translation_type) { res->flags = IORESOURCE_IO; @@ -131,6 +131,8 @@ static void acpi_dev_ioresource_flags(struct resource *res, u64 len, if (io_decode == ACPI_DECODE_16) res->flags |= IORESOURCE_IO_16BIT_ADDR; + if (translation_type == ACPI_SPARSE_TRANSLATION) + res->flags |= IORESOURCE_IO_SPARSE; } static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, @@ -138,7 +140,7 @@ static void acpi_dev_get_ioresource(struct resource *res, u64 start, u64 len, { res->start = start; res->end = start + len - 1; - acpi_dev_ioresource_flags(res, len, io_decode); + acpi_dev_ioresource_flags(res, len, io_decode, 0); } /** @@ -231,7 +233,8 @@ static bool acpi_decode_space(struct resource_win *win, acpi_dev_memresource_flags(res, len, wp); break; case ACPI_IO_RANGE: - acpi_dev_ioresource_flags(res, len, iodec); + acpi_dev_ioresource_flags(res, len, iodec, + addr->info.io.translation_type); break; case ACPI_BUS_NUMBER_RANGE: res->flags = IORESOURCE_BUS; diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 01136b879038..daf9fc8329e6 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -695,26 +695,6 @@ int acpi_device_add(struct acpi_device *device, return result; } -struct acpi_device *acpi_get_next_child(struct device *dev, - struct acpi_device *child) -{ - struct acpi_device *adev = ACPI_COMPANION(dev); - struct list_head *head, *next; - - if (!adev) - return NULL; - - head = &adev->children; - if (list_empty(head)) - return NULL; - - if (!child) - return list_first_entry(head, struct acpi_device, node); - - next = child->node.next; - return next == head ? NULL : list_entry(next, struct acpi_device, node); -} - /* -------------------------------------------------------------------------- Device Enumeration -------------------------------------------------------------------------- */ @@ -1184,7 +1164,7 @@ static void acpi_add_id(struct acpi_device_pnp *pnp, const char *dev_id) if (!id) return; - id->id = kstrdup(dev_id, GFP_KERNEL); + id->id = kstrdup_const(dev_id, GFP_KERNEL); if (!id->id) { kfree(id); return; @@ -1322,7 +1302,7 @@ void acpi_free_pnp_ids(struct acpi_device_pnp *pnp) struct acpi_hardware_id *id, *tmp; list_for_each_entry_safe(id, tmp, &pnp->ids, list) { - kfree(id->id); + kfree_const(id->id); kfree(id); } kfree(pnp->unique_id); @@ -1472,7 +1452,7 @@ bool acpi_device_is_present(struct acpi_device *adev) } static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler, - char *idstr, + const char *idstr, const struct acpi_device_id **matchid) { const struct acpi_device_id *devid; @@ -1491,7 +1471,7 @@ static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler, return false; } -static struct acpi_scan_handler *acpi_scan_match_handler(char *idstr, +static struct acpi_scan_handler *acpi_scan_match_handler(const char *idstr, const struct acpi_device_id **matchid) { struct acpi_scan_handler *handler; @@ -1933,3 +1913,42 @@ int __init acpi_scan_init(void) mutex_unlock(&acpi_scan_lock); return result; } + +static struct acpi_probe_entry *ape; +static int acpi_probe_count; +static DEFINE_SPINLOCK(acpi_probe_lock); + +static int __init acpi_match_madt(struct acpi_subtable_header *header, + const unsigned long end) +{ + if (!ape->subtable_valid || ape->subtable_valid(header, ape)) + if (!ape->probe_subtbl(header, end)) + acpi_probe_count++; + + return 0; +} + +int __init __acpi_probe_device_table(struct acpi_probe_entry *ap_head, int nr) +{ + int count = 0; + + if (acpi_disabled) + return 0; + + spin_lock(&acpi_probe_lock); + for (ape = ap_head; nr; ape++, nr--) { + if (ACPI_COMPARE_NAME(ACPI_SIG_MADT, ape->id)) { + acpi_probe_count = 0; + acpi_table_parse_madt(ape->type, acpi_match_madt, 0); + count += acpi_probe_count; + } else { + int res; + res = acpi_table_parse(ape->id, ape->probe_table); + if (!res) + count++; + } + } + spin_unlock(&acpi_probe_lock); + + return count; +} diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 2f0d4db40a9e..0d94621dc856 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -487,6 +487,8 @@ static int acpi_suspend_begin(suspend_state_t pm_state) pr_err("ACPI does not support sleep state S%u\n", acpi_state); return -ENOSYS; } + if (acpi_state > ACPI_STATE_S1) + pm_set_suspend_via_firmware(); acpi_pm_start(acpi_state); return 0; @@ -522,6 +524,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) if (error) return error; pr_info(PREFIX "Low-level resume complete\n"); + pm_set_resume_via_firmware(); break; } trace_suspend_resume(TPS("acpi_suspend"), acpi_state, false); @@ -632,14 +635,16 @@ static int acpi_freeze_prepare(void) acpi_enable_wakeup_devices(ACPI_STATE_S0); acpi_enable_all_wakeup_gpes(); acpi_os_wait_events_complete(); - enable_irq_wake(acpi_gbl_FADT.sci_interrupt); + if (acpi_sci_irq_valid()) + enable_irq_wake(acpi_sci_irq); return 0; } static void acpi_freeze_restore(void) { acpi_disable_wakeup_devices(ACPI_STATE_S0); - disable_irq_wake(acpi_gbl_FADT.sci_interrupt); + if (acpi_sci_irq_valid()) + disable_irq_wake(acpi_sci_irq); acpi_enable_all_runtime_gpes(); } diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 40a42655227c..0243d375c6fd 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -878,6 +878,9 @@ int __init acpi_sysfs_init(void) return result; hotplug_kobj = kobject_create_and_add("hotplug", acpi_kobj); + if (!hotplug_kobj) + return -ENOMEM; + result = sysfs_create_file(hotplug_kobj, &force_remove_attr.attr); if (result) return result; diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 17a6fa01a338..6c0f0794aa82 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -210,20 +210,39 @@ void acpi_table_print_madt_entry(struct acpi_subtable_header *header) } } -int __init -acpi_parse_entries(char *id, unsigned long table_size, - acpi_tbl_entry_handler handler, +/** + * acpi_parse_entries_array - for each proc_num find a suitable subtable + * + * @id: table id (for debugging purposes) + * @table_size: single entry size + * @table_header: where does the table start? + * @proc: array of acpi_subtable_proc struct containing entry id + * and associated handler with it + * @proc_num: how big proc is? + * @max_entries: how many entries can we process? + * + * For each proc_num find a subtable with proc->id and run proc->handler + * on it. Assumption is that there's only single handler for particular + * entry id. + * + * On success returns sum of all matching entries for all proc handlers. + * Otherwise, -ENODEV or -EINVAL is returned. + */ +static int __init +acpi_parse_entries_array(char *id, unsigned long table_size, struct acpi_table_header *table_header, - int entry_id, unsigned int max_entries) + struct acpi_subtable_proc *proc, int proc_num, + unsigned int max_entries) { struct acpi_subtable_header *entry; - int count = 0; unsigned long table_end; + int count = 0; + int i; if (acpi_disabled) return -ENODEV; - if (!id || !handler) + if (!id) return -EINVAL; if (!table_size) @@ -243,20 +262,28 @@ acpi_parse_entries(char *id, unsigned long table_size, while (((unsigned long)entry) + sizeof(struct acpi_subtable_header) < table_end) { - if (entry->type == entry_id - && (!max_entries || count < max_entries)) { - if (handler(entry, table_end)) + if (max_entries && count >= max_entries) + break; + + for (i = 0; i < proc_num; i++) { + if (entry->type != proc[i].id) + continue; + if (!proc[i].handler || + proc[i].handler(entry, table_end)) return -EINVAL; - count++; + proc->count++; + break; } + if (i != proc_num) + count++; /* * If entry->length is 0, break from this loop to avoid * infinite loop. */ if (entry->length == 0) { - pr_err("[%4.4s:0x%02x] Invalid zero length\n", id, entry_id); + pr_err("[%4.4s:0x%02x] Invalid zero length\n", id, proc->id); return -EINVAL; } @@ -266,17 +293,32 @@ acpi_parse_entries(char *id, unsigned long table_size, if (max_entries && count > max_entries) { pr_warn("[%4.4s:0x%02x] ignored %i entries of %i found\n", - id, entry_id, count - max_entries, count); + id, proc->id, count - max_entries, count); } return count; } int __init -acpi_table_parse_entries(char *id, +acpi_parse_entries(char *id, + unsigned long table_size, + acpi_tbl_entry_handler handler, + struct acpi_table_header *table_header, + int entry_id, unsigned int max_entries) +{ + struct acpi_subtable_proc proc = { + .id = entry_id, + .handler = handler, + }; + + return acpi_parse_entries_array(id, table_size, table_header, + &proc, 1, max_entries); +} + +int __init +acpi_table_parse_entries_array(char *id, unsigned long table_size, - int entry_id, - acpi_tbl_entry_handler handler, + struct acpi_subtable_proc *proc, int proc_num, unsigned int max_entries) { struct acpi_table_header *table_header = NULL; @@ -287,7 +329,7 @@ acpi_table_parse_entries(char *id, if (acpi_disabled) return -ENODEV; - if (!id || !handler) + if (!id) return -EINVAL; if (!strncmp(id, ACPI_SIG_MADT, 4)) @@ -299,14 +341,30 @@ acpi_table_parse_entries(char *id, return -ENODEV; } - count = acpi_parse_entries(id, table_size, handler, table_header, - entry_id, max_entries); + count = acpi_parse_entries_array(id, table_size, table_header, + proc, proc_num, max_entries); early_acpi_os_unmap_memory((char *)table_header, tbl_size); return count; } int __init +acpi_table_parse_entries(char *id, + unsigned long table_size, + int entry_id, + acpi_tbl_entry_handler handler, + unsigned int max_entries) +{ + struct acpi_subtable_proc proc = { + .id = entry_id, + .handler = handler, + }; + + return acpi_table_parse_entries_array(id, table_size, &proc, 1, + max_entries); +} + +int __init acpi_table_parse_madt(enum acpi_madt_type id, acpi_tbl_entry_handler handler, unsigned int max_entries) { diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 2922f1f252d5..0d3a384b508a 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -244,6 +244,15 @@ static const struct dmi_system_id video_detect_dmi_table[] = { /* Non win8 machines which need native backlight nevertheless */ { + /* https://bugzilla.redhat.com/show_bug.cgi?id=1201530 */ + .callback = video_detect_force_native, + .ident = "Lenovo Ideapad S405", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_BOARD_NAME, "Lenovo IdeaPad S405"), + }, + }, + { /* https://bugzilla.redhat.com/show_bug.cgi?id=1187004 */ .callback = video_detect_force_native, .ident = "Lenovo Ideapad Z570", diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile index f94a6ccfe787..5998c53280f5 100644 --- a/drivers/base/power/Makefile +++ b/drivers/base/power/Makefile @@ -1,7 +1,7 @@ obj-$(CONFIG_PM) += sysfs.o generic_ops.o common.o qos.o runtime.o wakeirq.o obj-$(CONFIG_PM_SLEEP) += main.o wakeup.o obj-$(CONFIG_PM_TRACE_RTC) += trace.o -obj-$(CONFIG_PM_OPP) += opp.o +obj-$(CONFIG_PM_OPP) += opp/ obj-$(CONFIG_PM_GENERIC_DOMAINS) += domain.o domain_governor.o obj-$(CONFIG_HAVE_CLK) += clock_ops.o diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c index 16550c63d611..a7dfdf9f15ba 100644 --- a/drivers/base/power/domain.c +++ b/drivers/base/power/domain.c @@ -34,43 +34,9 @@ __ret; \ }) -#define GENPD_DEV_TIMED_CALLBACK(genpd, type, callback, dev, field, name) \ -({ \ - ktime_t __start = ktime_get(); \ - type __retval = GENPD_DEV_CALLBACK(genpd, type, callback, dev); \ - s64 __elapsed = ktime_to_ns(ktime_sub(ktime_get(), __start)); \ - struct gpd_timing_data *__td = &dev_gpd_data(dev)->td; \ - if (!__retval && __elapsed > __td->field) { \ - __td->field = __elapsed; \ - dev_dbg(dev, name " latency exceeded, new value %lld ns\n", \ - __elapsed); \ - genpd->max_off_time_changed = true; \ - __td->constraint_changed = true; \ - } \ - __retval; \ -}) - static LIST_HEAD(gpd_list); static DEFINE_MUTEX(gpd_list_lock); -static struct generic_pm_domain *pm_genpd_lookup_name(const char *domain_name) -{ - struct generic_pm_domain *genpd = NULL, *gpd; - - if (IS_ERR_OR_NULL(domain_name)) - return NULL; - - mutex_lock(&gpd_list_lock); - list_for_each_entry(gpd, &gpd_list, gpd_list_node) { - if (!strcmp(gpd->name, domain_name)) { - genpd = gpd; - break; - } - } - mutex_unlock(&gpd_list_lock); - return genpd; -} - /* * Get the generic PM domain for a particular struct device. * This validates the struct device pointer, the PM domain pointer, @@ -110,18 +76,12 @@ static struct generic_pm_domain *dev_to_genpd(struct device *dev) static int genpd_stop_dev(struct generic_pm_domain *genpd, struct device *dev) { - return GENPD_DEV_TIMED_CALLBACK(genpd, int, stop, dev, - stop_latency_ns, "stop"); + return GENPD_DEV_CALLBACK(genpd, int, stop, dev); } -static int genpd_start_dev(struct generic_pm_domain *genpd, struct device *dev, - bool timed) +static int genpd_start_dev(struct generic_pm_domain *genpd, struct device *dev) { - if (!timed) - return GENPD_DEV_CALLBACK(genpd, int, start, dev); - - return GENPD_DEV_TIMED_CALLBACK(genpd, int, start, dev, - start_latency_ns, "start"); + return GENPD_DEV_CALLBACK(genpd, int, start, dev); } static bool genpd_sd_counter_dec(struct generic_pm_domain *genpd) @@ -140,19 +100,6 @@ static void genpd_sd_counter_inc(struct generic_pm_domain *genpd) smp_mb__after_atomic(); } -static void genpd_recalc_cpu_exit_latency(struct generic_pm_domain *genpd) -{ - s64 usecs64; - - if (!genpd->cpuidle_data) - return; - - usecs64 = genpd->power_on_latency_ns; - do_div(usecs64, NSEC_PER_USEC); - usecs64 += genpd->cpuidle_data->saved_exit_latency; - genpd->cpuidle_data->idle_state->exit_latency = usecs64; -} - static int genpd_power_on(struct generic_pm_domain *genpd, bool timed) { ktime_t time_start; @@ -176,7 +123,6 @@ static int genpd_power_on(struct generic_pm_domain *genpd, bool timed) genpd->power_on_latency_ns = elapsed_ns; genpd->max_off_time_changed = true; - genpd_recalc_cpu_exit_latency(genpd); pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n", genpd->name, "on", elapsed_ns); @@ -213,10 +159,10 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool timed) } /** - * genpd_queue_power_off_work - Queue up the execution of pm_genpd_poweroff(). + * genpd_queue_power_off_work - Queue up the execution of genpd_poweroff(). * @genpd: PM domait to power off. * - * Queue up the execution of pm_genpd_poweroff() unless it's already been done + * Queue up the execution of genpd_poweroff() unless it's already been done * before. */ static void genpd_queue_power_off_work(struct generic_pm_domain *genpd) @@ -224,14 +170,16 @@ static void genpd_queue_power_off_work(struct generic_pm_domain *genpd) queue_work(pm_wq, &genpd->power_off_work); } +static int genpd_poweron(struct generic_pm_domain *genpd); + /** - * __pm_genpd_poweron - Restore power to a given PM domain and its masters. + * __genpd_poweron - Restore power to a given PM domain and its masters. * @genpd: PM domain to power up. * * Restore power to @genpd and all of its masters so that it is possible to * resume a device belonging to it. */ -static int __pm_genpd_poweron(struct generic_pm_domain *genpd) +static int __genpd_poweron(struct generic_pm_domain *genpd) { struct gpd_link *link; int ret = 0; @@ -240,13 +188,6 @@ static int __pm_genpd_poweron(struct generic_pm_domain *genpd) || (genpd->prepared_count > 0 && genpd->suspend_power_off)) return 0; - if (genpd->cpuidle_data) { - cpuidle_pause_and_lock(); - genpd->cpuidle_data->idle_state->disabled = true; - cpuidle_resume_and_unlock(); - goto out; - } - /* * The list is guaranteed not to change while the loop below is being * executed, unless one of the masters' .power_on() callbacks fiddles @@ -255,7 +196,7 @@ static int __pm_genpd_poweron(struct generic_pm_domain *genpd) list_for_each_entry(link, &genpd->slave_links, slave_node) { genpd_sd_counter_inc(link->master); - ret = pm_genpd_poweron(link->master); + ret = genpd_poweron(link->master); if (ret) { genpd_sd_counter_dec(link->master); goto err; @@ -266,7 +207,6 @@ static int __pm_genpd_poweron(struct generic_pm_domain *genpd) if (ret) goto err; - out: genpd->status = GPD_STATE_ACTIVE; return 0; @@ -282,46 +222,28 @@ static int __pm_genpd_poweron(struct generic_pm_domain *genpd) } /** - * pm_genpd_poweron - Restore power to a given PM domain and its masters. + * genpd_poweron - Restore power to a given PM domain and its masters. * @genpd: PM domain to power up. */ -int pm_genpd_poweron(struct generic_pm_domain *genpd) +static int genpd_poweron(struct generic_pm_domain *genpd) { int ret; mutex_lock(&genpd->lock); - ret = __pm_genpd_poweron(genpd); + ret = __genpd_poweron(genpd); mutex_unlock(&genpd->lock); return ret; } -/** - * pm_genpd_name_poweron - Restore power to a given PM domain and its masters. - * @domain_name: Name of the PM domain to power up. - */ -int pm_genpd_name_poweron(const char *domain_name) -{ - struct generic_pm_domain *genpd; - - genpd = pm_genpd_lookup_name(domain_name); - return genpd ? pm_genpd_poweron(genpd) : -EINVAL; -} - static int genpd_save_dev(struct generic_pm_domain *genpd, struct device *dev) { - return GENPD_DEV_TIMED_CALLBACK(genpd, int, save_state, dev, - save_state_latency_ns, "state save"); + return GENPD_DEV_CALLBACK(genpd, int, save_state, dev); } static int genpd_restore_dev(struct generic_pm_domain *genpd, - struct device *dev, bool timed) + struct device *dev) { - if (!timed) - return GENPD_DEV_CALLBACK(genpd, int, restore_state, dev); - - return GENPD_DEV_TIMED_CALLBACK(genpd, int, restore_state, dev, - restore_state_latency_ns, - "state restore"); + return GENPD_DEV_CALLBACK(genpd, int, restore_state, dev); } static int genpd_dev_pm_qos_notifier(struct notifier_block *nb, @@ -365,13 +287,14 @@ static int genpd_dev_pm_qos_notifier(struct notifier_block *nb, } /** - * pm_genpd_poweroff - Remove power from a given PM domain. + * genpd_poweroff - Remove power from a given PM domain. * @genpd: PM domain to power down. + * @is_async: PM domain is powered down from a scheduled work * * If all of the @genpd's devices have been suspended and all of its subdomains * have been powered down, remove power from @genpd. */ -static int pm_genpd_poweroff(struct generic_pm_domain *genpd) +static int genpd_poweroff(struct generic_pm_domain *genpd, bool is_async) { struct pm_domain_data *pdd; struct gpd_link *link; @@ -403,7 +326,7 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd) not_suspended++; } - if (not_suspended > genpd->in_progress) + if (not_suspended > 1 || (not_suspended == 1 && is_async)) return -EBUSY; if (genpd->gov && genpd->gov->power_down_ok) { @@ -411,21 +334,6 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd) return -EAGAIN; } - if (genpd->cpuidle_data) { - /* - * If cpuidle_data is set, cpuidle should turn the domain off - * when the CPU in it is idle. In that case we don't decrement - * the subdomain counts of the master domains, so that power is - * not removed from the current domain prematurely as a result - * of cutting off the masters' power. - */ - genpd->status = GPD_STATE_POWER_OFF; - cpuidle_pause_and_lock(); - genpd->cpuidle_data->idle_state->disabled = false; - cpuidle_resume_and_unlock(); - return 0; - } - if (genpd->power_off) { int ret; @@ -434,10 +342,10 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd) /* * If sd_count > 0 at this point, one of the subdomains hasn't - * managed to call pm_genpd_poweron() for the master yet after - * incrementing it. In that case pm_genpd_poweron() will wait + * managed to call genpd_poweron() for the master yet after + * incrementing it. In that case genpd_poweron() will wait * for us to drop the lock, so we can call .power_off() and let - * the pm_genpd_poweron() restore power for us (this shouldn't + * the genpd_poweron() restore power for us (this shouldn't * happen very often). */ ret = genpd_power_off(genpd, true); @@ -466,7 +374,7 @@ static void genpd_power_off_work_fn(struct work_struct *work) genpd = container_of(work, struct generic_pm_domain, power_off_work); mutex_lock(&genpd->lock); - pm_genpd_poweroff(genpd); + genpd_poweroff(genpd, true); mutex_unlock(&genpd->lock); } @@ -482,6 +390,9 @@ static int pm_genpd_runtime_suspend(struct device *dev) { struct generic_pm_domain *genpd; bool (*stop_ok)(struct device *__dev); + struct gpd_timing_data *td = &dev_gpd_data(dev)->td; + ktime_t time_start; + s64 elapsed_ns; int ret; dev_dbg(dev, "%s()\n", __func__); @@ -494,16 +405,29 @@ static int pm_genpd_runtime_suspend(struct device *dev) if (stop_ok && !stop_ok(dev)) return -EBUSY; + /* Measure suspend latency. */ + time_start = ktime_get(); + ret = genpd_save_dev(genpd, dev); if (ret) return ret; ret = genpd_stop_dev(genpd, dev); if (ret) { - genpd_restore_dev(genpd, dev, true); + genpd_restore_dev(genpd, dev); return ret; } + /* Update suspend latency value if the measured time exceeds it. */ + elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start)); + if (elapsed_ns > td->suspend_latency_ns) { + td->suspend_latency_ns = elapsed_ns; + dev_dbg(dev, "suspend latency exceeded, %lld ns\n", + elapsed_ns); + genpd->max_off_time_changed = true; + td->constraint_changed = true; + } + /* * If power.irq_safe is set, this routine will be run with interrupts * off, so it can't use mutexes. @@ -512,9 +436,7 @@ static int pm_genpd_runtime_suspend(struct device *dev) return 0; mutex_lock(&genpd->lock); - genpd->in_progress++; - pm_genpd_poweroff(genpd); - genpd->in_progress--; + genpd_poweroff(genpd, false); mutex_unlock(&genpd->lock); return 0; @@ -531,6 +453,9 @@ static int pm_genpd_runtime_suspend(struct device *dev) static int pm_genpd_runtime_resume(struct device *dev) { struct generic_pm_domain *genpd; + struct gpd_timing_data *td = &dev_gpd_data(dev)->td; + ktime_t time_start; + s64 elapsed_ns; int ret; bool timed = true; @@ -547,15 +472,31 @@ static int pm_genpd_runtime_resume(struct device *dev) } mutex_lock(&genpd->lock); - ret = __pm_genpd_poweron(genpd); + ret = __genpd_poweron(genpd); mutex_unlock(&genpd->lock); if (ret) return ret; out: - genpd_start_dev(genpd, dev, timed); - genpd_restore_dev(genpd, dev, timed); + /* Measure resume latency. */ + if (timed) + time_start = ktime_get(); + + genpd_start_dev(genpd, dev); + genpd_restore_dev(genpd, dev); + + /* Update resume latency value if the measured time exceeds it. */ + if (timed) { + elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start)); + if (elapsed_ns > td->resume_latency_ns) { + td->resume_latency_ns = elapsed_ns; + dev_dbg(dev, "resume latency exceeded, %lld ns\n", + elapsed_ns); + genpd->max_off_time_changed = true; + td->constraint_changed = true; + } + } return 0; } @@ -569,15 +510,15 @@ static int __init pd_ignore_unused_setup(char *__unused) __setup("pd_ignore_unused", pd_ignore_unused_setup); /** - * pm_genpd_poweroff_unused - Power off all PM domains with no devices in use. + * genpd_poweroff_unused - Power off all PM domains with no devices in use. */ -void pm_genpd_poweroff_unused(void) +static int __init genpd_poweroff_unused(void) { struct generic_pm_domain *genpd; if (pd_ignore_unused) { pr_warn("genpd: Not disabling unused power domains\n"); - return; + return 0; } mutex_lock(&gpd_list_lock); @@ -586,11 +527,7 @@ void pm_genpd_poweroff_unused(void) genpd_queue_power_off_work(genpd); mutex_unlock(&gpd_list_lock); -} -static int __init genpd_poweroff_unused(void) -{ - pm_genpd_poweroff_unused(); return 0; } late_initcall(genpd_poweroff_unused); @@ -764,7 +701,7 @@ static int pm_genpd_prepare(struct device *dev) /* * The PM domain must be in the GPD_STATE_ACTIVE state at this point, - * so pm_genpd_poweron() will return immediately, but if the device + * so genpd_poweron() will return immediately, but if the device * is suspended (e.g. it's been stopped by genpd_stop_dev()), we need * to make it operational. */ @@ -890,7 +827,7 @@ static int pm_genpd_resume_noirq(struct device *dev) pm_genpd_sync_poweron(genpd, true); genpd->suspended_count--; - return genpd_start_dev(genpd, dev, true); + return genpd_start_dev(genpd, dev); } /** @@ -1018,7 +955,8 @@ static int pm_genpd_thaw_noirq(struct device *dev) if (IS_ERR(genpd)) return -EINVAL; - return genpd->suspend_power_off ? 0 : genpd_start_dev(genpd, dev, true); + return genpd->suspend_power_off ? + 0 : genpd_start_dev(genpd, dev); } /** @@ -1112,7 +1050,7 @@ static int pm_genpd_restore_noirq(struct device *dev) pm_genpd_sync_poweron(genpd, true); - return genpd_start_dev(genpd, dev, true); + return genpd_start_dev(genpd, dev); } /** @@ -1317,18 +1255,6 @@ int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev, } /** - * __pm_genpd_name_add_device - Find I/O PM domain and add a device to it. - * @domain_name: Name of the PM domain to add the device to. - * @dev: Device to be added. - * @td: Set of PM QoS timing parameters to attach to the device. - */ -int __pm_genpd_name_add_device(const char *domain_name, struct device *dev, - struct gpd_timing_data *td) -{ - return __pm_genpd_add_device(pm_genpd_lookup_name(domain_name), dev, td); -} - -/** * pm_genpd_remove_device - Remove a device from an I/O PM domain. * @genpd: PM domain to remove the device from. * @dev: Device to be removed. @@ -1429,35 +1355,6 @@ int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, } /** - * pm_genpd_add_subdomain_names - Add a subdomain to an I/O PM domain. - * @master_name: Name of the master PM domain to add the subdomain to. - * @subdomain_name: Name of the subdomain to be added. - */ -int pm_genpd_add_subdomain_names(const char *master_name, - const char *subdomain_name) -{ - struct generic_pm_domain *master = NULL, *subdomain = NULL, *gpd; - - if (IS_ERR_OR_NULL(master_name) || IS_ERR_OR_NULL(subdomain_name)) - return -EINVAL; - - mutex_lock(&gpd_list_lock); - list_for_each_entry(gpd, &gpd_list, gpd_list_node) { - if (!master && !strcmp(gpd->name, master_name)) - master = gpd; - - if (!subdomain && !strcmp(gpd->name, subdomain_name)) - subdomain = gpd; - - if (master && subdomain) - break; - } - mutex_unlock(&gpd_list_lock); - - return pm_genpd_add_subdomain(master, subdomain); -} - -/** * pm_genpd_remove_subdomain - Remove a subdomain from an I/O PM domain. * @genpd: Master PM domain to remove the subdomain from. * @subdomain: Subdomain to be removed. @@ -1504,124 +1401,6 @@ out: return ret; } -/** - * pm_genpd_attach_cpuidle - Connect the given PM domain with cpuidle. - * @genpd: PM domain to be connected with cpuidle. - * @state: cpuidle state this domain can disable/enable. - * - * Make a PM domain behave as though it contained a CPU core, that is, instead - * of calling its power down routine it will enable the given cpuidle state so - * that the cpuidle subsystem can power it down (if possible and desirable). - */ -int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state) -{ - struct cpuidle_driver *cpuidle_drv; - struct gpd_cpuidle_data *cpuidle_data; - struct cpuidle_state *idle_state; - int ret = 0; - - if (IS_ERR_OR_NULL(genpd) || state < 0) - return -EINVAL; - - mutex_lock(&genpd->lock); - - if (genpd->cpuidle_data) { - ret = -EEXIST; - goto out; - } - cpuidle_data = kzalloc(sizeof(*cpuidle_data), GFP_KERNEL); - if (!cpuidle_data) { - ret = -ENOMEM; - goto out; - } - cpuidle_drv = cpuidle_driver_ref(); - if (!cpuidle_drv) { - ret = -ENODEV; - goto err_drv; - } - if (cpuidle_drv->state_count <= state) { - ret = -EINVAL; - goto err; - } - idle_state = &cpuidle_drv->states[state]; - if (!idle_state->disabled) { - ret = -EAGAIN; - goto err; - } - cpuidle_data->idle_state = idle_state; - cpuidle_data->saved_exit_latency = idle_state->exit_latency; - genpd->cpuidle_data = cpuidle_data; - genpd_recalc_cpu_exit_latency(genpd); - - out: - mutex_unlock(&genpd->lock); - return ret; - - err: - cpuidle_driver_unref(); - - err_drv: - kfree(cpuidle_data); - goto out; -} - -/** - * pm_genpd_name_attach_cpuidle - Find PM domain and connect cpuidle to it. - * @name: Name of the domain to connect to cpuidle. - * @state: cpuidle state this domain can manipulate. - */ -int pm_genpd_name_attach_cpuidle(const char *name, int state) -{ - return pm_genpd_attach_cpuidle(pm_genpd_lookup_name(name), state); -} - -/** - * pm_genpd_detach_cpuidle - Remove the cpuidle connection from a PM domain. - * @genpd: PM domain to remove the cpuidle connection from. - * - * Remove the cpuidle connection set up by pm_genpd_attach_cpuidle() from the - * given PM domain. - */ -int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd) -{ - struct gpd_cpuidle_data *cpuidle_data; - struct cpuidle_state *idle_state; - int ret = 0; - - if (IS_ERR_OR_NULL(genpd)) - return -EINVAL; - - mutex_lock(&genpd->lock); - - cpuidle_data = genpd->cpuidle_data; - if (!cpuidle_data) { - ret = -ENODEV; - goto out; - } - idle_state = cpuidle_data->idle_state; - if (!idle_state->disabled) { - ret = -EAGAIN; - goto out; - } - idle_state->exit_latency = cpuidle_data->saved_exit_latency; - cpuidle_driver_unref(); - genpd->cpuidle_data = NULL; - kfree(cpuidle_data); - - out: - mutex_unlock(&genpd->lock); - return ret; -} - -/** - * pm_genpd_name_detach_cpuidle - Find PM domain and disconnect cpuidle from it. - * @name: Name of the domain to disconnect cpuidle from. - */ -int pm_genpd_name_detach_cpuidle(const char *name) -{ - return pm_genpd_detach_cpuidle(pm_genpd_lookup_name(name)); -} - /* Default device callbacks for generic PM domains. */ /** @@ -1688,7 +1467,6 @@ void pm_genpd_init(struct generic_pm_domain *genpd, mutex_init(&genpd->lock); genpd->gov = gov; INIT_WORK(&genpd->power_off_work, genpd_power_off_work_fn); - genpd->in_progress = 0; atomic_set(&genpd->sd_count, 0); genpd->status = is_off ? GPD_STATE_POWER_OFF : GPD_STATE_ACTIVE; genpd->device_count = 0; @@ -2023,7 +1801,7 @@ int genpd_dev_pm_attach(struct device *dev) dev->pm_domain->detach = genpd_dev_pm_detach; dev->pm_domain->sync = genpd_dev_pm_sync; - ret = pm_genpd_poweron(pd); + ret = genpd_poweron(pd); out: return ret ? -EPROBE_DEFER : 0; diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c index 85e17bacc834..e60dd12e23aa 100644 --- a/drivers/base/power/domain_governor.c +++ b/drivers/base/power/domain_governor.c @@ -77,10 +77,8 @@ static bool default_stop_ok(struct device *dev) dev_update_qos_constraint); if (constraint_ns > 0) { - constraint_ns -= td->save_state_latency_ns + - td->stop_latency_ns + - td->start_latency_ns + - td->restore_state_latency_ns; + constraint_ns -= td->suspend_latency_ns + + td->resume_latency_ns; if (constraint_ns == 0) return false; } diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c index 96a92db83cad..07c3c4a9522d 100644 --- a/drivers/base/power/generic_ops.c +++ b/drivers/base/power/generic_ops.c @@ -9,6 +9,7 @@ #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/export.h> +#include <linux/suspend.h> #ifdef CONFIG_PM /** @@ -296,11 +297,27 @@ void pm_generic_complete(struct device *dev) if (drv && drv->pm && drv->pm->complete) drv->pm->complete(dev); +} +/** + * pm_complete_with_resume_check - Complete a device power transition. + * @dev: Device to handle. + * + * Complete a device power transition during a system-wide power transition and + * optionally schedule a runtime resume of the device if the system resume in + * progress has been initated by the platform firmware and the device had its + * power.direct_complete flag set. + */ +void pm_complete_with_resume_check(struct device *dev) +{ + pm_generic_complete(dev); /* - * Let runtime PM try to suspend devices that haven't been in use before - * going into the system-wide sleep state we're resuming from. + * If the device had been runtime-suspended before the system went into + * the sleep state it is going out of and it has never been resumed till + * now, resume it in case the firmware powered it up. */ - pm_request_idle(dev); + if (dev->power.direct_complete && pm_resume_via_firmware()) + pm_request_resume(dev); } +EXPORT_SYMBOL_GPL(pm_complete_with_resume_check); #endif /* CONFIG_PM_SLEEP */ diff --git a/drivers/base/power/opp/Makefile b/drivers/base/power/opp/Makefile new file mode 100644 index 000000000000..33c1e18c41a4 --- /dev/null +++ b/drivers/base/power/opp/Makefile @@ -0,0 +1,2 @@ +ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG +obj-y += core.o cpu.o diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp/core.c index 7ae7cd990fbf..d5c1149ff123 100644 --- a/drivers/base/power/opp.c +++ b/drivers/base/power/opp/core.c @@ -11,131 +11,14 @@ * published by the Free Software Foundation. */ -#include <linux/cpu.h> -#include <linux/kernel.h> #include <linux/errno.h> #include <linux/err.h> #include <linux/slab.h> #include <linux/device.h> -#include <linux/list.h> -#include <linux/rculist.h> -#include <linux/rcupdate.h> -#include <linux/pm_opp.h> #include <linux/of.h> #include <linux/export.h> -/* - * Internal data structure organization with the OPP layer library is as - * follows: - * dev_opp_list (root) - * |- device 1 (represents voltage domain 1) - * | |- opp 1 (availability, freq, voltage) - * | |- opp 2 .. - * ... ... - * | `- opp n .. - * |- device 2 (represents the next voltage domain) - * ... - * `- device m (represents mth voltage domain) - * device 1, 2.. are represented by dev_opp structure while each opp - * is represented by the opp structure. - */ - -/** - * struct dev_pm_opp - Generic OPP description structure - * @node: opp list node. The nodes are maintained throughout the lifetime - * of boot. It is expected only an optimal set of OPPs are - * added to the library by the SoC framework. - * RCU usage: opp list is traversed with RCU locks. node - * modification is possible realtime, hence the modifications - * are protected by the dev_opp_list_lock for integrity. - * IMPORTANT: the opp nodes should be maintained in increasing - * order. - * @dynamic: not-created from static DT entries. - * @available: true/false - marks if this OPP as available or not - * @turbo: true if turbo (boost) OPP - * @rate: Frequency in hertz - * @u_volt: Target voltage in microvolts corresponding to this OPP - * @u_volt_min: Minimum voltage in microvolts corresponding to this OPP - * @u_volt_max: Maximum voltage in microvolts corresponding to this OPP - * @u_amp: Maximum current drawn by the device in microamperes - * @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's - * frequency from any other OPP's frequency. - * @dev_opp: points back to the device_opp struct this opp belongs to - * @rcu_head: RCU callback head used for deferred freeing - * @np: OPP's device node. - * - * This structure stores the OPP information for a given device. - */ -struct dev_pm_opp { - struct list_head node; - - bool available; - bool dynamic; - bool turbo; - unsigned long rate; - - unsigned long u_volt; - unsigned long u_volt_min; - unsigned long u_volt_max; - unsigned long u_amp; - unsigned long clock_latency_ns; - - struct device_opp *dev_opp; - struct rcu_head rcu_head; - - struct device_node *np; -}; - -/** - * struct device_list_opp - devices managed by 'struct device_opp' - * @node: list node - * @dev: device to which the struct object belongs - * @rcu_head: RCU callback head used for deferred freeing - * - * This is an internal data structure maintaining the list of devices that are - * managed by 'struct device_opp'. - */ -struct device_list_opp { - struct list_head node; - const struct device *dev; - struct rcu_head rcu_head; -}; - -/** - * struct device_opp - Device opp structure - * @node: list node - contains the devices with OPPs that - * have been registered. Nodes once added are not modified in this - * list. - * RCU usage: nodes are not modified in the list of device_opp, - * however addition is possible and is secured by dev_opp_list_lock - * @srcu_head: notifier head to notify the OPP availability changes. - * @rcu_head: RCU callback head used for deferred freeing - * @dev_list: list of devices that share these OPPs - * @opp_list: list of opps - * @np: struct device_node pointer for opp's DT node. - * @shared_opp: OPP is shared between multiple devices. - * - * This is an internal data structure maintaining the link to opps attached to - * a device. This structure is not meant to be shared to users as it is - * meant for book keeping and private to OPP library. - * - * Because the opp structures can be used from both rcu and srcu readers, we - * need to wait for the grace period of both of them before freeing any - * resources. And so we have used kfree_rcu() from within call_srcu() handlers. - */ -struct device_opp { - struct list_head node; - - struct srcu_notifier_head srcu_head; - struct rcu_head rcu_head; - struct list_head dev_list; - struct list_head opp_list; - - struct device_node *np; - unsigned long clock_latency_ns_max; - bool shared_opp; - struct dev_pm_opp *suspend_opp; -}; +#include "opp.h" /* * The root of the list of all devices. All device_opp structures branch off @@ -200,7 +83,7 @@ static struct device_opp *_managed_opp(const struct device_node *np) * is a RCU protected pointer. This means that device_opp is valid as long * as we are under RCU lock. */ -static struct device_opp *_find_device_opp(struct device *dev) +struct device_opp *_find_device_opp(struct device *dev) { struct device_opp *dev_opp; @@ -579,8 +462,8 @@ static void _remove_list_dev(struct device_list_opp *list_dev, _kfree_list_dev_rcu); } -static struct device_list_opp *_add_list_dev(const struct device *dev, - struct device_opp *dev_opp) +struct device_list_opp *_add_list_dev(const struct device *dev, + struct device_opp *dev_opp) { struct device_list_opp *list_dev; @@ -828,8 +711,8 @@ static int _opp_add(struct device *dev, struct dev_pm_opp *new_opp, * The opp is made available by default and it can be controlled using * dev_pm_opp_enable/disable functions and may be removed by dev_pm_opp_remove. * - * NOTE: "dynamic" parameter impacts OPPs added by the of_init_opp_table and - * freed by of_free_opp_table. + * NOTE: "dynamic" parameter impacts OPPs added by the dev_pm_opp_of_add_table + * and freed by dev_pm_opp_of_remove_table. * * Locking: The internal device_opp and opp structures are RCU protected. * Hence this function internally uses RCU updater strategy with mutex locks @@ -1220,7 +1103,8 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_notifier); #ifdef CONFIG_OF /** - * of_free_opp_table() - Free OPP table entries created from static DT entries + * dev_pm_opp_of_remove_table() - Free OPP table entries created from static DT + * entries * @dev: device pointer used to lookup device OPPs. * * Free OPPs created using static entries present in DT. @@ -1231,7 +1115,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_notifier); * that this function is *NOT* called under RCU protection or in contexts where * mutex cannot be locked. */ -void of_free_opp_table(struct device *dev) +void dev_pm_opp_of_remove_table(struct device *dev) { struct device_opp *dev_opp; struct dev_pm_opp *opp, *tmp; @@ -1266,91 +1150,34 @@ void of_free_opp_table(struct device *dev) unlock: mutex_unlock(&dev_opp_list_lock); } -EXPORT_SYMBOL_GPL(of_free_opp_table); +EXPORT_SYMBOL_GPL(dev_pm_opp_of_remove_table); -void of_cpumask_free_opp_table(cpumask_var_t cpumask) +/* Returns opp descriptor node for a device, caller must do of_node_put() */ +struct device_node *_of_get_opp_desc_node(struct device *dev) { - struct device *cpu_dev; - int cpu; - - WARN_ON(cpumask_empty(cpumask)); - - for_each_cpu(cpu, cpumask) { - cpu_dev = get_cpu_device(cpu); - if (!cpu_dev) { - pr_err("%s: failed to get cpu%d device\n", __func__, - cpu); - continue; - } - - of_free_opp_table(cpu_dev); - } -} -EXPORT_SYMBOL_GPL(of_cpumask_free_opp_table); - -/* Returns opp descriptor node from its phandle. Caller must do of_node_put() */ -static struct device_node * -_of_get_opp_desc_node_from_prop(struct device *dev, const struct property *prop) -{ - struct device_node *opp_np; - - opp_np = of_find_node_by_phandle(be32_to_cpup(prop->value)); - if (!opp_np) { - dev_err(dev, "%s: Prop: %s contains invalid opp desc phandle\n", - __func__, prop->name); - return ERR_PTR(-EINVAL); - } - - return opp_np; -} - -/* Returns opp descriptor node for a device. Caller must do of_node_put() */ -static struct device_node *_of_get_opp_desc_node(struct device *dev) -{ - const struct property *prop; - - prop = of_find_property(dev->of_node, "operating-points-v2", NULL); - if (!prop) - return ERR_PTR(-ENODEV); - if (!prop->value) - return ERR_PTR(-ENODATA); - /* * TODO: Support for multiple OPP tables. * * There should be only ONE phandle present in "operating-points-v2" * property. */ - if (prop->length != sizeof(__be32)) { - dev_err(dev, "%s: Invalid opp desc phandle\n", __func__); - return ERR_PTR(-EINVAL); - } - return _of_get_opp_desc_node_from_prop(dev, prop); + return of_parse_phandle(dev->of_node, "operating-points-v2", 0); } /* Initializes OPP tables based on new bindings */ -static int _of_init_opp_table_v2(struct device *dev, - const struct property *prop) +static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np) { - struct device_node *opp_np, *np; + struct device_node *np; struct device_opp *dev_opp; int ret = 0, count = 0; - if (!prop->value) - return -ENODATA; - - /* Get opp node */ - opp_np = _of_get_opp_desc_node_from_prop(dev, prop); - if (IS_ERR(opp_np)) - return PTR_ERR(opp_np); - dev_opp = _managed_opp(opp_np); if (dev_opp) { /* OPPs are already managed */ if (!_add_list_dev(dev, dev_opp)) ret = -ENOMEM; - goto put_opp_np; + return ret; } /* We have opp-list node now, iterate over it and add OPPs */ @@ -1366,10 +1193,8 @@ static int _of_init_opp_table_v2(struct device *dev, } /* There should be one of more OPP defined */ - if (WARN_ON(!count)) { - ret = -ENOENT; - goto put_opp_np; - } + if (WARN_ON(!count)) + return -ENOENT; dev_opp = _find_device_opp(dev); if (WARN_ON(IS_ERR(dev_opp))) { @@ -1380,19 +1205,16 @@ static int _of_init_opp_table_v2(struct device *dev, dev_opp->np = opp_np; dev_opp->shared_opp = of_property_read_bool(opp_np, "opp-shared"); - of_node_put(opp_np); return 0; free_table: - of_free_opp_table(dev); -put_opp_np: - of_node_put(opp_np); + dev_pm_opp_of_remove_table(dev); return ret; } /* Initializes OPP tables based on old-deprecated bindings */ -static int _of_init_opp_table_v1(struct device *dev) +static int _of_add_opp_table_v1(struct device *dev) { const struct property *prop; const __be32 *val; @@ -1429,7 +1251,7 @@ static int _of_init_opp_table_v1(struct device *dev) } /** - * of_init_opp_table() - Initialize opp table from device tree + * dev_pm_opp_of_add_table() - Initialize opp table from device tree * @dev: device pointer used to lookup device OPPs. * * Register the initial OPP table with the OPP library for given device. @@ -1451,153 +1273,28 @@ static int _of_init_opp_table_v1(struct device *dev) * -ENODATA when empty 'operating-points' property is found * -EINVAL when invalid entries are found in opp-v2 table */ -int of_init_opp_table(struct device *dev) +int dev_pm_opp_of_add_table(struct device *dev) { - const struct property *prop; + struct device_node *opp_np; + int ret; /* * OPPs have two version of bindings now. The older one is deprecated, * try for the new binding first. */ - prop = of_find_property(dev->of_node, "operating-points-v2", NULL); - if (!prop) { + opp_np = _of_get_opp_desc_node(dev); + if (!opp_np) { /* * Try old-deprecated bindings for backward compatibility with * older dtbs. */ - return _of_init_opp_table_v1(dev); - } - - return _of_init_opp_table_v2(dev, prop); -} -EXPORT_SYMBOL_GPL(of_init_opp_table); - -int of_cpumask_init_opp_table(cpumask_var_t cpumask) -{ - struct device *cpu_dev; - int cpu, ret = 0; - - WARN_ON(cpumask_empty(cpumask)); - - for_each_cpu(cpu, cpumask) { - cpu_dev = get_cpu_device(cpu); - if (!cpu_dev) { - pr_err("%s: failed to get cpu%d device\n", __func__, - cpu); - continue; - } - - ret = of_init_opp_table(cpu_dev); - if (ret) { - pr_err("%s: couldn't find opp table for cpu:%d, %d\n", - __func__, cpu, ret); - - /* Free all other OPPs */ - of_cpumask_free_opp_table(cpumask); - break; - } + return _of_add_opp_table_v1(dev); } - return ret; -} -EXPORT_SYMBOL_GPL(of_cpumask_init_opp_table); - -/* Required only for V1 bindings, as v2 can manage it from DT itself */ -int set_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask) -{ - struct device_list_opp *list_dev; - struct device_opp *dev_opp; - struct device *dev; - int cpu, ret = 0; - - rcu_read_lock(); - - dev_opp = _find_device_opp(cpu_dev); - if (IS_ERR(dev_opp)) { - ret = -EINVAL; - goto out_rcu_read_unlock; - } - - for_each_cpu(cpu, cpumask) { - if (cpu == cpu_dev->id) - continue; - - dev = get_cpu_device(cpu); - if (!dev) { - dev_err(cpu_dev, "%s: failed to get cpu%d device\n", - __func__, cpu); - continue; - } - - list_dev = _add_list_dev(dev, dev_opp); - if (!list_dev) { - dev_err(dev, "%s: failed to add list-dev for cpu%d device\n", - __func__, cpu); - continue; - } - } -out_rcu_read_unlock: - rcu_read_unlock(); - - return 0; -} -EXPORT_SYMBOL_GPL(set_cpus_sharing_opps); - -/* - * Works only for OPP v2 bindings. - * - * cpumask should be already set to mask of cpu_dev->id. - * Returns -ENOENT if operating-points-v2 bindings aren't supported. - */ -int of_get_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask) -{ - struct device_node *np, *tmp_np; - struct device *tcpu_dev; - int cpu, ret = 0; - - /* Get OPP descriptor node */ - np = _of_get_opp_desc_node(cpu_dev); - if (IS_ERR(np)) { - dev_dbg(cpu_dev, "%s: Couldn't find opp node: %ld\n", __func__, - PTR_ERR(np)); - return -ENOENT; - } - - /* OPPs are shared ? */ - if (!of_property_read_bool(np, "opp-shared")) - goto put_cpu_node; - - for_each_possible_cpu(cpu) { - if (cpu == cpu_dev->id) - continue; - - tcpu_dev = get_cpu_device(cpu); - if (!tcpu_dev) { - dev_err(cpu_dev, "%s: failed to get cpu%d device\n", - __func__, cpu); - ret = -ENODEV; - goto put_cpu_node; - } - - /* Get OPP descriptor node */ - tmp_np = _of_get_opp_desc_node(tcpu_dev); - if (IS_ERR(tmp_np)) { - dev_err(tcpu_dev, "%s: Couldn't find opp node: %ld\n", - __func__, PTR_ERR(tmp_np)); - ret = PTR_ERR(tmp_np); - goto put_cpu_node; - } - - /* CPUs are sharing opp node */ - if (np == tmp_np) - cpumask_set_cpu(cpu, cpumask); - - of_node_put(tmp_np); - } + ret = _of_add_opp_table_v2(dev, opp_np); + of_node_put(opp_np); -put_cpu_node: - of_node_put(np); return ret; } -EXPORT_SYMBOL_GPL(of_get_cpus_sharing_opps); +EXPORT_SYMBOL_GPL(dev_pm_opp_of_add_table); #endif diff --git a/drivers/base/power/opp/cpu.c b/drivers/base/power/opp/cpu.c new file mode 100644 index 000000000000..7654c5606307 --- /dev/null +++ b/drivers/base/power/opp/cpu.c @@ -0,0 +1,267 @@ +/* + * Generic OPP helper interface for CPU device + * + * Copyright (C) 2009-2014 Texas Instruments Incorporated. + * Nishanth Menon + * Romit Dasgupta + * Kevin Hilman + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/cpu.h> +#include <linux/cpufreq.h> +#include <linux/err.h> +#include <linux/errno.h> +#include <linux/export.h> +#include <linux/of.h> +#include <linux/slab.h> + +#include "opp.h" + +#ifdef CONFIG_CPU_FREQ + +/** + * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device + * @dev: device for which we do this operation + * @table: Cpufreq table returned back to caller + * + * Generate a cpufreq table for a provided device- this assumes that the + * opp list is already initialized and ready for usage. + * + * This function allocates required memory for the cpufreq table. It is + * expected that the caller does the required maintenance such as freeing + * the table as required. + * + * Returns -EINVAL for bad pointers, -ENODEV if the device is not found, -ENOMEM + * if no memory available for the operation (table is not populated), returns 0 + * if successful and table is populated. + * + * WARNING: It is important for the callers to ensure refreshing their copy of + * the table if any of the mentioned functions have been invoked in the interim. + * + * Locking: The internal device_opp and opp structures are RCU protected. + * Since we just use the regular accessor functions to access the internal data + * structures, we use RCU read lock inside this function. As a result, users of + * this function DONOT need to use explicit locks for invoking. + */ +int dev_pm_opp_init_cpufreq_table(struct device *dev, + struct cpufreq_frequency_table **table) +{ + struct dev_pm_opp *opp; + struct cpufreq_frequency_table *freq_table = NULL; + int i, max_opps, ret = 0; + unsigned long rate; + + rcu_read_lock(); + + max_opps = dev_pm_opp_get_opp_count(dev); + if (max_opps <= 0) { + ret = max_opps ? max_opps : -ENODATA; + goto out; + } + + freq_table = kcalloc((max_opps + 1), sizeof(*freq_table), GFP_ATOMIC); + if (!freq_table) { + ret = -ENOMEM; + goto out; + } + + for (i = 0, rate = 0; i < max_opps; i++, rate++) { + /* find next rate */ + opp = dev_pm_opp_find_freq_ceil(dev, &rate); + if (IS_ERR(opp)) { + ret = PTR_ERR(opp); + goto out; + } + freq_table[i].driver_data = i; + freq_table[i].frequency = rate / 1000; + + /* Is Boost/turbo opp ? */ + if (dev_pm_opp_is_turbo(opp)) + freq_table[i].flags = CPUFREQ_BOOST_FREQ; + } + + freq_table[i].driver_data = i; + freq_table[i].frequency = CPUFREQ_TABLE_END; + + *table = &freq_table[0]; + +out: + rcu_read_unlock(); + if (ret) + kfree(freq_table); + + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table); + +/** + * dev_pm_opp_free_cpufreq_table() - free the cpufreq table + * @dev: device for which we do this operation + * @table: table to free + * + * Free up the table allocated by dev_pm_opp_init_cpufreq_table + */ +void dev_pm_opp_free_cpufreq_table(struct device *dev, + struct cpufreq_frequency_table **table) +{ + if (!table) + return; + + kfree(*table); + *table = NULL; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table); +#endif /* CONFIG_CPU_FREQ */ + +/* Required only for V1 bindings, as v2 can manage it from DT itself */ +int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) +{ + struct device_list_opp *list_dev; + struct device_opp *dev_opp; + struct device *dev; + int cpu, ret = 0; + + rcu_read_lock(); + + dev_opp = _find_device_opp(cpu_dev); + if (IS_ERR(dev_opp)) { + ret = -EINVAL; + goto out_rcu_read_unlock; + } + + for_each_cpu(cpu, cpumask) { + if (cpu == cpu_dev->id) + continue; + + dev = get_cpu_device(cpu); + if (!dev) { + dev_err(cpu_dev, "%s: failed to get cpu%d device\n", + __func__, cpu); + continue; + } + + list_dev = _add_list_dev(dev, dev_opp); + if (!list_dev) { + dev_err(dev, "%s: failed to add list-dev for cpu%d device\n", + __func__, cpu); + continue; + } + } +out_rcu_read_unlock: + rcu_read_unlock(); + + return 0; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_set_sharing_cpus); + +#ifdef CONFIG_OF +void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) +{ + struct device *cpu_dev; + int cpu; + + WARN_ON(cpumask_empty(cpumask)); + + for_each_cpu(cpu, cpumask) { + cpu_dev = get_cpu_device(cpu); + if (!cpu_dev) { + pr_err("%s: failed to get cpu%d device\n", __func__, + cpu); + continue; + } + + dev_pm_opp_of_remove_table(cpu_dev); + } +} +EXPORT_SYMBOL_GPL(dev_pm_opp_of_cpumask_remove_table); + +int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask) +{ + struct device *cpu_dev; + int cpu, ret = 0; + + WARN_ON(cpumask_empty(cpumask)); + + for_each_cpu(cpu, cpumask) { + cpu_dev = get_cpu_device(cpu); + if (!cpu_dev) { + pr_err("%s: failed to get cpu%d device\n", __func__, + cpu); + continue; + } + + ret = dev_pm_opp_of_add_table(cpu_dev); + if (ret) { + pr_err("%s: couldn't find opp table for cpu:%d, %d\n", + __func__, cpu, ret); + + /* Free all other OPPs */ + dev_pm_opp_of_cpumask_remove_table(cpumask); + break; + } + } + + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_of_cpumask_add_table); + +/* + * Works only for OPP v2 bindings. + * + * cpumask should be already set to mask of cpu_dev->id. + * Returns -ENOENT if operating-points-v2 bindings aren't supported. + */ +int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) +{ + struct device_node *np, *tmp_np; + struct device *tcpu_dev; + int cpu, ret = 0; + + /* Get OPP descriptor node */ + np = _of_get_opp_desc_node(cpu_dev); + if (!np) { + dev_dbg(cpu_dev, "%s: Couldn't find cpu_dev node.\n", __func__); + return -ENOENT; + } + + /* OPPs are shared ? */ + if (!of_property_read_bool(np, "opp-shared")) + goto put_cpu_node; + + for_each_possible_cpu(cpu) { + if (cpu == cpu_dev->id) + continue; + + tcpu_dev = get_cpu_device(cpu); + if (!tcpu_dev) { + dev_err(cpu_dev, "%s: failed to get cpu%d device\n", + __func__, cpu); + ret = -ENODEV; + goto put_cpu_node; + } + + /* Get OPP descriptor node */ + tmp_np = _of_get_opp_desc_node(tcpu_dev); + if (!tmp_np) { + dev_err(tcpu_dev, "%s: Couldn't find tcpu_dev node.\n", + __func__); + ret = -ENOENT; + goto put_cpu_node; + } + + /* CPUs are sharing opp node */ + if (np == tmp_np) + cpumask_set_cpu(cpu, cpumask); + + of_node_put(tmp_np); + } + +put_cpu_node: + of_node_put(np); + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_of_get_sharing_cpus); +#endif diff --git a/drivers/base/power/opp/opp.h b/drivers/base/power/opp/opp.h new file mode 100644 index 000000000000..dcb38f78dae4 --- /dev/null +++ b/drivers/base/power/opp/opp.h @@ -0,0 +1,143 @@ +/* + * Generic OPP Interface + * + * Copyright (C) 2009-2010 Texas Instruments Incorporated. + * Nishanth Menon + * Romit Dasgupta + * Kevin Hilman + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __DRIVER_OPP_H__ +#define __DRIVER_OPP_H__ + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/pm_opp.h> +#include <linux/rculist.h> +#include <linux/rcupdate.h> + +/* + * Internal data structure organization with the OPP layer library is as + * follows: + * dev_opp_list (root) + * |- device 1 (represents voltage domain 1) + * | |- opp 1 (availability, freq, voltage) + * | |- opp 2 .. + * ... ... + * | `- opp n .. + * |- device 2 (represents the next voltage domain) + * ... + * `- device m (represents mth voltage domain) + * device 1, 2.. are represented by dev_opp structure while each opp + * is represented by the opp structure. + */ + +/** + * struct dev_pm_opp - Generic OPP description structure + * @node: opp list node. The nodes are maintained throughout the lifetime + * of boot. It is expected only an optimal set of OPPs are + * added to the library by the SoC framework. + * RCU usage: opp list is traversed with RCU locks. node + * modification is possible realtime, hence the modifications + * are protected by the dev_opp_list_lock for integrity. + * IMPORTANT: the opp nodes should be maintained in increasing + * order. + * @dynamic: not-created from static DT entries. + * @available: true/false - marks if this OPP as available or not + * @turbo: true if turbo (boost) OPP + * @rate: Frequency in hertz + * @u_volt: Target voltage in microvolts corresponding to this OPP + * @u_volt_min: Minimum voltage in microvolts corresponding to this OPP + * @u_volt_max: Maximum voltage in microvolts corresponding to this OPP + * @u_amp: Maximum current drawn by the device in microamperes + * @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's + * frequency from any other OPP's frequency. + * @dev_opp: points back to the device_opp struct this opp belongs to + * @rcu_head: RCU callback head used for deferred freeing + * @np: OPP's device node. + * + * This structure stores the OPP information for a given device. + */ +struct dev_pm_opp { + struct list_head node; + + bool available; + bool dynamic; + bool turbo; + unsigned long rate; + + unsigned long u_volt; + unsigned long u_volt_min; + unsigned long u_volt_max; + unsigned long u_amp; + unsigned long clock_latency_ns; + + struct device_opp *dev_opp; + struct rcu_head rcu_head; + + struct device_node *np; +}; + +/** + * struct device_list_opp - devices managed by 'struct device_opp' + * @node: list node + * @dev: device to which the struct object belongs + * @rcu_head: RCU callback head used for deferred freeing + * + * This is an internal data structure maintaining the list of devices that are + * managed by 'struct device_opp'. + */ +struct device_list_opp { + struct list_head node; + const struct device *dev; + struct rcu_head rcu_head; +}; + +/** + * struct device_opp - Device opp structure + * @node: list node - contains the devices with OPPs that + * have been registered. Nodes once added are not modified in this + * list. + * RCU usage: nodes are not modified in the list of device_opp, + * however addition is possible and is secured by dev_opp_list_lock + * @srcu_head: notifier head to notify the OPP availability changes. + * @rcu_head: RCU callback head used for deferred freeing + * @dev_list: list of devices that share these OPPs + * @opp_list: list of opps + * @np: struct device_node pointer for opp's DT node. + * @shared_opp: OPP is shared between multiple devices. + * + * This is an internal data structure maintaining the link to opps attached to + * a device. This structure is not meant to be shared to users as it is + * meant for book keeping and private to OPP library. + * + * Because the opp structures can be used from both rcu and srcu readers, we + * need to wait for the grace period of both of them before freeing any + * resources. And so we have used kfree_rcu() from within call_srcu() handlers. + */ +struct device_opp { + struct list_head node; + + struct srcu_notifier_head srcu_head; + struct rcu_head rcu_head; + struct list_head dev_list; + struct list_head opp_list; + + struct device_node *np; + unsigned long clock_latency_ns_max; + bool shared_opp; + struct dev_pm_opp *suspend_opp; +}; + +/* Routines internal to opp core */ +struct device_opp *_find_device_opp(struct device *dev); +struct device_list_opp *_add_list_dev(const struct device *dev, + struct device_opp *dev_opp); +struct device_node *_of_get_opp_desc_node(struct device *dev); + +#endif /* __DRIVER_OPP_H__ */ diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c index 51f15bc15774..a1e0b9ab847a 100644 --- a/drivers/base/power/wakeup.c +++ b/drivers/base/power/wakeup.c @@ -25,6 +25,9 @@ */ bool events_check_enabled __read_mostly; +/* First wakeup IRQ seen by the kernel in the last cycle. */ +unsigned int pm_wakeup_irq __read_mostly; + /* If set and the system is suspending, terminate the suspend. */ static bool pm_abort_suspend __read_mostly; @@ -91,7 +94,7 @@ struct wakeup_source *wakeup_source_create(const char *name) if (!ws) return NULL; - wakeup_source_prepare(ws, name ? kstrdup(name, GFP_KERNEL) : NULL); + wakeup_source_prepare(ws, name ? kstrdup_const(name, GFP_KERNEL) : NULL); return ws; } EXPORT_SYMBOL_GPL(wakeup_source_create); @@ -154,7 +157,7 @@ void wakeup_source_destroy(struct wakeup_source *ws) wakeup_source_drop(ws); wakeup_source_record(ws); - kfree(ws->name); + kfree_const(ws->name); kfree(ws); } EXPORT_SYMBOL_GPL(wakeup_source_destroy); @@ -868,6 +871,15 @@ EXPORT_SYMBOL_GPL(pm_system_wakeup); void pm_wakeup_clear(void) { pm_abort_suspend = false; + pm_wakeup_irq = 0; +} + +void pm_system_irq_wakeup(unsigned int irq_number) +{ + if (pm_wakeup_irq == 0) { + pm_wakeup_irq = irq_number; + pm_system_wakeup(); + } } /** diff --git a/drivers/base/property.c b/drivers/base/property.c index 2d75366c61e0..de40623bbd8a 100644 --- a/drivers/base/property.c +++ b/drivers/base/property.c @@ -134,7 +134,7 @@ bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname) if (is_of_node(fwnode)) return of_property_read_bool(to_of_node(fwnode), propname); else if (is_acpi_node(fwnode)) - return !acpi_dev_prop_get(to_acpi_node(fwnode), propname, NULL); + return !acpi_node_prop_get(fwnode, propname, NULL); return !!pset_prop_get(to_pset(fwnode), propname); } @@ -287,6 +287,28 @@ int device_property_read_string(struct device *dev, const char *propname, } EXPORT_SYMBOL_GPL(device_property_read_string); +/** + * device_property_match_string - find a string in an array and return index + * @dev: Device to get the property of + * @propname: Name of the property holding the array + * @string: String to look for + * + * Find a given string in a string array and if it is found return the + * index back. + * + * Return: %0 if the property was found (success), + * %-EINVAL if given arguments are not valid, + * %-ENODATA if the property does not have a value, + * %-EPROTO if the property is not an array of strings, + * %-ENXIO if no suitable firmware interface is present. + */ +int device_property_match_string(struct device *dev, const char *propname, + const char *string) +{ + return fwnode_property_match_string(dev_fwnode(dev), propname, string); +} +EXPORT_SYMBOL_GPL(device_property_match_string); + #define OF_DEV_PROP_READ_ARRAY(node, propname, type, val, nval) \ (val) ? of_property_read_##type##_array((node), (propname), (val), (nval)) \ : of_property_count_elems_of_size((node), (propname), sizeof(type)) @@ -298,8 +320,8 @@ EXPORT_SYMBOL_GPL(device_property_read_string); _ret_ = OF_DEV_PROP_READ_ARRAY(to_of_node(_fwnode_), _propname_, \ _type_, _val_, _nval_); \ else if (is_acpi_node(_fwnode_)) \ - _ret_ = acpi_dev_prop_read(to_acpi_node(_fwnode_), _propname_, \ - _proptype_, _val_, _nval_); \ + _ret_ = acpi_node_prop_read(_fwnode_, _propname_, _proptype_, \ + _val_, _nval_); \ else if (is_pset(_fwnode_)) \ _ret_ = pset_prop_read_array(to_pset(_fwnode_), _propname_, \ _proptype_, _val_, _nval_); \ @@ -440,8 +462,8 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode, propname, val, nval) : of_property_count_strings(to_of_node(fwnode), propname); else if (is_acpi_node(fwnode)) - return acpi_dev_prop_read(to_acpi_node(fwnode), propname, - DEV_PROP_STRING, val, nval); + return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING, + val, nval); else if (is_pset(fwnode)) return pset_prop_read_array(to_pset(fwnode), propname, DEV_PROP_STRING, val, nval); @@ -470,8 +492,8 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode, if (is_of_node(fwnode)) return of_property_read_string(to_of_node(fwnode), propname, val); else if (is_acpi_node(fwnode)) - return acpi_dev_prop_read(to_acpi_node(fwnode), propname, - DEV_PROP_STRING, val, 1); + return acpi_node_prop_read(fwnode, propname, DEV_PROP_STRING, + val, 1); return pset_prop_read_array(to_pset(fwnode), propname, DEV_PROP_STRING, val, 1); @@ -479,6 +501,52 @@ int fwnode_property_read_string(struct fwnode_handle *fwnode, EXPORT_SYMBOL_GPL(fwnode_property_read_string); /** + * fwnode_property_match_string - find a string in an array and return index + * @fwnode: Firmware node to get the property of + * @propname: Name of the property holding the array + * @string: String to look for + * + * Find a given string in a string array and if it is found return the + * index back. + * + * Return: %0 if the property was found (success), + * %-EINVAL if given arguments are not valid, + * %-ENODATA if the property does not have a value, + * %-EPROTO if the property is not an array of strings, + * %-ENXIO if no suitable firmware interface is present. + */ +int fwnode_property_match_string(struct fwnode_handle *fwnode, + const char *propname, const char *string) +{ + const char **values; + int nval, ret, i; + + nval = fwnode_property_read_string_array(fwnode, propname, NULL, 0); + if (nval < 0) + return nval; + + values = kcalloc(nval, sizeof(*values), GFP_KERNEL); + if (!values) + return -ENOMEM; + + ret = fwnode_property_read_string_array(fwnode, propname, values, nval); + if (ret < 0) + goto out; + + ret = -ENODATA; + for (i = 0; i < nval; i++) { + if (!strcmp(values[i], string)) { + ret = i; + break; + } + } +out: + kfree(values); + return ret; +} +EXPORT_SYMBOL_GPL(fwnode_property_match_string); + +/** * device_get_next_child_node - Return the next child node handle for a device * @dev: Device to find the next child node for. * @child: Handle to one of the device's child nodes or a null handle. @@ -493,11 +561,7 @@ struct fwnode_handle *device_get_next_child_node(struct device *dev, if (node) return &node->fwnode; } else if (IS_ENABLED(CONFIG_ACPI)) { - struct acpi_device *node; - - node = acpi_get_next_child(dev, to_acpi_node(child)); - if (node) - return acpi_fwnode_handle(node); + return acpi_get_next_subnode(dev, child); } return NULL; } diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig index a7726db13abb..1a9c5dc1e5f9 100644 --- a/drivers/clocksource/Kconfig +++ b/drivers/clocksource/Kconfig @@ -2,6 +2,14 @@ menu "Clock Source drivers" config CLKSRC_OF bool + select CLKSRC_PROBE + +config CLKSRC_ACPI + bool + select CLKSRC_PROBE + +config CLKSRC_PROBE + bool config CLKSRC_I8253 bool @@ -123,6 +131,7 @@ config CLKSRC_STM32 config ARM_ARCH_TIMER bool select CLKSRC_OF if OF + select CLKSRC_ACPI if ACPI config ARM_ARCH_TIMER_EVTSTREAM bool "Support for ARM architected timer event stream generation" diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile index 5c00863c3e33..51856d50bccc 100644 --- a/drivers/clocksource/Makefile +++ b/drivers/clocksource/Makefile @@ -1,4 +1,4 @@ -obj-$(CONFIG_CLKSRC_OF) += clksrc-of.o +obj-$(CONFIG_CLKSRC_PROBE) += clksrc-probe.o obj-$(CONFIG_ATMEL_PIT) += timer-atmel-pit.o obj-$(CONFIG_ATMEL_ST) += timer-atmel-st.o obj-$(CONFIG_ATMEL_TCB_CLKSRC) += tcb_clksrc.o diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index d6e3e49399dd..c64d543d64bf 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -864,13 +864,5 @@ static int __init arch_timer_acpi_init(struct acpi_table_header *table) arch_timer_init(); return 0; } - -/* Initialize all the generic timers presented in GTDT */ -void __init acpi_generic_timer_init(void) -{ - if (acpi_disabled) - return; - - acpi_table_parse(ACPI_SIG_GTDT, arch_timer_acpi_init); -} +CLOCKSOURCE_ACPI_DECLARE(arch_timer, ACPI_SIG_GTDT, arch_timer_acpi_init); #endif diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-probe.c index 0093a8e49e14..7cb6c923a836 100644 --- a/drivers/clocksource/clksrc-of.c +++ b/drivers/clocksource/clksrc-probe.c @@ -14,6 +14,7 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/acpi.h> #include <linux/init.h> #include <linux/of.h> #include <linux/clocksource.h> @@ -23,7 +24,7 @@ extern struct of_device_id __clksrc_of_table[]; static const struct of_device_id __clksrc_of_table_sentinel __used __section(__clksrc_of_table_end); -void __init clocksource_of_init(void) +void __init clocksource_probe(void) { struct device_node *np; const struct of_device_id *match; @@ -38,6 +39,9 @@ void __init clocksource_of_init(void) init_func(np); clocksources++; } + + clocksources += acpi_probe_device_table(clksrc); + if (!clocksources) pr_crit("%s: no matching clocksources found\n", __func__); } diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm index cd0391e46c6d..642fd49793b0 100644 --- a/drivers/cpufreq/Kconfig.arm +++ b/drivers/cpufreq/Kconfig.arm @@ -227,3 +227,20 @@ config ARM_PXA2xx_CPUFREQ This add the CPUFreq driver support for Intel PXA2xx SOCs. If in doubt, say N. + +config ACPI_CPPC_CPUFREQ + tristate "CPUFreq driver based on the ACPI CPPC spec" + depends on ACPI + select ACPI_CPPC_LIB + default n + help + This adds a CPUFreq driver which uses CPPC methods + as described in the ACPIv5.1 spec. CPPC stands for + Collaborative Processor Performance Controls. It + is based on an abstract continuous scale of CPU + performance values which allows the remote power + processor to flexibly optimize for power and + performance. CPPC relies on power management firmware + support for its operation. + + If in doubt, say N. diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index c59bdcb83217..adbd1de1cea5 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -5,6 +5,7 @@ config X86_INTEL_PSTATE bool "Intel P state control" depends on X86 + select ACPI_PROCESSOR if ACPI help This driver provides a P state for Intel core processors. The driver implements an internal governor and will become diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index 41340384f11f..d11309c487d0 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -1,6 +1,5 @@ # CPUfreq core obj-$(CONFIG_CPU_FREQ) += cpufreq.o freq_table.o -obj-$(CONFIG_PM_OPP) += cpufreq_opp.o # CPUfreq stats obj-$(CONFIG_CPU_FREQ_STAT) += cpufreq_stats.o @@ -76,6 +75,8 @@ obj-$(CONFIG_ARM_SPEAR_CPUFREQ) += spear-cpufreq.o obj-$(CONFIG_ARM_TEGRA20_CPUFREQ) += tegra20-cpufreq.o obj-$(CONFIG_ARM_TEGRA124_CPUFREQ) += tegra124-cpufreq.o obj-$(CONFIG_ARM_VEXPRESS_SPC_CPUFREQ) += vexpress-spc-cpufreq.o +obj-$(CONFIG_ACPI_CPPC_CPUFREQ) += cppc_cpufreq.o + ################################################################################## # PowerPC platform drivers diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h index a211f7db9d32..b88889d9387e 100644 --- a/drivers/cpufreq/arm_big_little.h +++ b/drivers/cpufreq/arm_big_little.h @@ -28,7 +28,7 @@ struct cpufreq_arm_bL_ops { /* * This must set opp table for cpu_dev in a similar way as done by - * of_init_opp_table(). + * dev_pm_opp_of_add_table(). */ int (*init_opp_table)(struct device *cpu_dev); diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c index 36d91dba2965..16ddeefe9443 100644 --- a/drivers/cpufreq/arm_big_little_dt.c +++ b/drivers/cpufreq/arm_big_little_dt.c @@ -54,7 +54,7 @@ static int dt_init_opp_table(struct device *cpu_dev) return -ENOENT; } - ret = of_init_opp_table(cpu_dev); + ret = dev_pm_opp_of_add_table(cpu_dev); of_node_put(np); return ret; @@ -82,7 +82,7 @@ static struct cpufreq_arm_bL_ops dt_bL_ops = { .name = "dt-bl", .get_transition_latency = dt_get_transition_latency, .init_opp_table = dt_init_opp_table, - .free_opp_table = of_free_opp_table, + .free_opp_table = dev_pm_opp_of_remove_table, }; static int generic_bL_probe(struct platform_device *pdev) diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c new file mode 100644 index 000000000000..93c219fab850 --- /dev/null +++ b/drivers/cpufreq/cppc_cpufreq.c @@ -0,0 +1,176 @@ +/* + * CPPC (Collaborative Processor Performance Control) driver for + * interfacing with the CPUfreq layer and governors. See + * cppc_acpi.c for CPPC specific methods. + * + * (C) Copyright 2014, 2015 Linaro Ltd. + * Author: Ashwin Chaugule <ashwin.chaugule@linaro.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ + +#define pr_fmt(fmt) "CPPC Cpufreq:" fmt + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/cpu.h> +#include <linux/cpufreq.h> +#include <linux/vmalloc.h> + +#include <acpi/cppc_acpi.h> + +/* + * These structs contain information parsed from per CPU + * ACPI _CPC structures. + * e.g. For each CPU the highest, lowest supported + * performance capabilities, desired performance level + * requested etc. + */ +static struct cpudata **all_cpu_data; + +static int cppc_cpufreq_set_target(struct cpufreq_policy *policy, + unsigned int target_freq, + unsigned int relation) +{ + struct cpudata *cpu; + struct cpufreq_freqs freqs; + int ret = 0; + + cpu = all_cpu_data[policy->cpu]; + + cpu->perf_ctrls.desired_perf = target_freq; + freqs.old = policy->cur; + freqs.new = target_freq; + + cpufreq_freq_transition_begin(policy, &freqs); + ret = cppc_set_perf(cpu->cpu, &cpu->perf_ctrls); + cpufreq_freq_transition_end(policy, &freqs, ret != 0); + + if (ret) + pr_debug("Failed to set target on CPU:%d. ret:%d\n", + cpu->cpu, ret); + + return ret; +} + +static int cppc_verify_policy(struct cpufreq_policy *policy) +{ + cpufreq_verify_within_cpu_limits(policy); + return 0; +} + +static void cppc_cpufreq_stop_cpu(struct cpufreq_policy *policy) +{ + int cpu_num = policy->cpu; + struct cpudata *cpu = all_cpu_data[cpu_num]; + int ret; + + cpu->perf_ctrls.desired_perf = cpu->perf_caps.lowest_perf; + + ret = cppc_set_perf(cpu_num, &cpu->perf_ctrls); + if (ret) + pr_debug("Err setting perf value:%d on CPU:%d. ret:%d\n", + cpu->perf_caps.lowest_perf, cpu_num, ret); +} + +static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy) +{ + struct cpudata *cpu; + unsigned int cpu_num = policy->cpu; + int ret = 0; + + cpu = all_cpu_data[policy->cpu]; + + cpu->cpu = cpu_num; + ret = cppc_get_perf_caps(policy->cpu, &cpu->perf_caps); + + if (ret) { + pr_debug("Err reading CPU%d perf capabilities. ret:%d\n", + cpu_num, ret); + return ret; + } + + policy->min = cpu->perf_caps.lowest_perf; + policy->max = cpu->perf_caps.highest_perf; + policy->cpuinfo.min_freq = policy->min; + policy->cpuinfo.max_freq = policy->max; + + if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY) + cpumask_copy(policy->cpus, cpu->shared_cpu_map); + else { + /* Support only SW_ANY for now. */ + pr_debug("Unsupported CPU co-ord type\n"); + return -EFAULT; + } + + cpumask_set_cpu(policy->cpu, policy->cpus); + cpu->cur_policy = policy; + + /* Set policy->cur to max now. The governors will adjust later. */ + policy->cur = cpu->perf_ctrls.desired_perf = cpu->perf_caps.highest_perf; + + ret = cppc_set_perf(cpu_num, &cpu->perf_ctrls); + if (ret) + pr_debug("Err setting perf value:%d on CPU:%d. ret:%d\n", + cpu->perf_caps.highest_perf, cpu_num, ret); + + return ret; +} + +static struct cpufreq_driver cppc_cpufreq_driver = { + .flags = CPUFREQ_CONST_LOOPS, + .verify = cppc_verify_policy, + .target = cppc_cpufreq_set_target, + .init = cppc_cpufreq_cpu_init, + .stop_cpu = cppc_cpufreq_stop_cpu, + .name = "cppc_cpufreq", +}; + +static int __init cppc_cpufreq_init(void) +{ + int i, ret = 0; + struct cpudata *cpu; + + if (acpi_disabled) + return -ENODEV; + + all_cpu_data = kzalloc(sizeof(void *) * num_possible_cpus(), GFP_KERNEL); + if (!all_cpu_data) + return -ENOMEM; + + for_each_possible_cpu(i) { + all_cpu_data[i] = kzalloc(sizeof(struct cpudata), GFP_KERNEL); + if (!all_cpu_data[i]) + goto out; + + cpu = all_cpu_data[i]; + if (!zalloc_cpumask_var(&cpu->shared_cpu_map, GFP_KERNEL)) + goto out; + } + + ret = acpi_get_psd_map(all_cpu_data); + if (ret) { + pr_debug("Error parsing PSD data. Aborting cpufreq registration.\n"); + goto out; + } + + ret = cpufreq_register_driver(&cppc_cpufreq_driver); + if (ret) + goto out; + + return ret; + +out: + for_each_possible_cpu(i) + if (all_cpu_data[i]) + kfree(all_cpu_data[i]); + + kfree(all_cpu_data); + return -ENODEV; +} + +late_initcall(cppc_cpufreq_init); diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c index 7c0d70e2a861..90d64081ddb3 100644 --- a/drivers/cpufreq/cpufreq-dt.c +++ b/drivers/cpufreq/cpufreq-dt.c @@ -216,7 +216,7 @@ static int cpufreq_init(struct cpufreq_policy *policy) } /* Get OPP-sharing information from "operating-points-v2" bindings */ - ret = of_get_cpus_sharing_opps(cpu_dev, policy->cpus); + ret = dev_pm_opp_of_get_sharing_cpus(cpu_dev, policy->cpus); if (ret) { /* * operating-points-v2 not supported, fallback to old method of @@ -238,7 +238,7 @@ static int cpufreq_init(struct cpufreq_policy *policy) * * OPPs might be populated at runtime, don't check for error here */ - of_cpumask_init_opp_table(policy->cpus); + dev_pm_opp_of_cpumask_add_table(policy->cpus); /* * But we need OPP table to function so if it is not there let's @@ -261,7 +261,7 @@ static int cpufreq_init(struct cpufreq_policy *policy) * OPP tables are initialized only for policy->cpu, do it for * others as well. */ - ret = set_cpus_sharing_opps(cpu_dev, policy->cpus); + ret = dev_pm_opp_set_sharing_cpus(cpu_dev, policy->cpus); if (ret) dev_err(cpu_dev, "%s: failed to mark OPPs as shared: %d\n", __func__, ret); @@ -368,7 +368,7 @@ out_free_cpufreq_table: out_free_priv: kfree(priv); out_free_opp: - of_cpumask_free_opp_table(policy->cpus); + dev_pm_opp_of_cpumask_remove_table(policy->cpus); out_node_put: of_node_put(np); out_put_reg_clk: @@ -385,7 +385,7 @@ static int cpufreq_exit(struct cpufreq_policy *policy) cpufreq_cooling_unregister(priv->cdev); dev_pm_opp_free_cpufreq_table(priv->cpu_dev, &policy->freq_table); - of_cpumask_free_opp_table(policy->related_cpus); + dev_pm_opp_of_cpumask_remove_table(policy->related_cpus); clk_put(policy->clk); if (!IS_ERR(priv->cpu_reg)) regulator_put(priv->cpu_reg); diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 25c4c15103a0..7c48e7316d91 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -843,18 +843,11 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr, down_write(&policy->rwsem); - /* Updating inactive policies is invalid, so avoid doing that. */ - if (unlikely(policy_is_inactive(policy))) { - ret = -EBUSY; - goto unlock_policy_rwsem; - } - if (fattr->store) ret = fattr->store(policy, buf, count); else ret = -EIO; -unlock_policy_rwsem: up_write(&policy->rwsem); unlock: put_online_cpus(); @@ -880,49 +873,6 @@ static struct kobj_type ktype_cpufreq = { .release = cpufreq_sysfs_release, }; -struct kobject *cpufreq_global_kobject; -EXPORT_SYMBOL(cpufreq_global_kobject); - -static int cpufreq_global_kobject_usage; - -int cpufreq_get_global_kobject(void) -{ - if (!cpufreq_global_kobject_usage++) - return kobject_add(cpufreq_global_kobject, - &cpu_subsys.dev_root->kobj, "%s", "cpufreq"); - - return 0; -} -EXPORT_SYMBOL(cpufreq_get_global_kobject); - -void cpufreq_put_global_kobject(void) -{ - if (!--cpufreq_global_kobject_usage) - kobject_del(cpufreq_global_kobject); -} -EXPORT_SYMBOL(cpufreq_put_global_kobject); - -int cpufreq_sysfs_create_file(const struct attribute *attr) -{ - int ret = cpufreq_get_global_kobject(); - - if (!ret) { - ret = sysfs_create_file(cpufreq_global_kobject, attr); - if (ret) - cpufreq_put_global_kobject(); - } - - return ret; -} -EXPORT_SYMBOL(cpufreq_sysfs_create_file); - -void cpufreq_sysfs_remove_file(const struct attribute *attr) -{ - sysfs_remove_file(cpufreq_global_kobject, attr); - cpufreq_put_global_kobject(); -} -EXPORT_SYMBOL(cpufreq_sysfs_remove_file); - static int add_cpu_dev_symlink(struct cpufreq_policy *policy, int cpu) { struct device *cpu_dev; @@ -960,9 +910,6 @@ static int cpufreq_add_dev_symlink(struct cpufreq_policy *policy) /* Some related CPUs might not be present (physically hotplugged) */ for_each_cpu(j, policy->real_cpus) { - if (j == policy->kobj_cpu) - continue; - ret = add_cpu_dev_symlink(policy, j); if (ret) break; @@ -976,12 +923,8 @@ static void cpufreq_remove_dev_symlink(struct cpufreq_policy *policy) unsigned int j; /* Some related CPUs might not be present (physically hotplugged) */ - for_each_cpu(j, policy->real_cpus) { - if (j == policy->kobj_cpu) - continue; - + for_each_cpu(j, policy->real_cpus) remove_cpu_dev_symlink(policy, j); - } } static int cpufreq_add_dev_interface(struct cpufreq_policy *policy) @@ -1079,7 +1022,6 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) { struct device *dev = get_cpu_device(cpu); struct cpufreq_policy *policy; - int ret; if (WARN_ON(!dev)) return NULL; @@ -1097,13 +1039,7 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) if (!zalloc_cpumask_var(&policy->real_cpus, GFP_KERNEL)) goto err_free_rcpumask; - ret = kobject_init_and_add(&policy->kobj, &ktype_cpufreq, &dev->kobj, - "cpufreq"); - if (ret) { - pr_err("%s: failed to init policy->kobj: %d\n", __func__, ret); - goto err_free_real_cpus; - } - + kobject_init(&policy->kobj, &ktype_cpufreq); INIT_LIST_HEAD(&policy->policy_list); init_rwsem(&policy->rwsem); spin_lock_init(&policy->transition_lock); @@ -1112,14 +1048,8 @@ static struct cpufreq_policy *cpufreq_policy_alloc(unsigned int cpu) INIT_WORK(&policy->update, handle_update); policy->cpu = cpu; - - /* Set this once on allocation */ - policy->kobj_cpu = cpu; - return policy; -err_free_real_cpus: - free_cpumask_var(policy->real_cpus); err_free_rcpumask: free_cpumask_var(policy->related_cpus); err_free_cpumask: @@ -1221,9 +1151,19 @@ static int cpufreq_online(unsigned int cpu) if (new_policy) { /* related_cpus should at least include policy->cpus. */ - cpumask_or(policy->related_cpus, policy->related_cpus, policy->cpus); + cpumask_copy(policy->related_cpus, policy->cpus); /* Remember CPUs present at the policy creation time. */ cpumask_and(policy->real_cpus, policy->cpus, cpu_present_mask); + + /* Name and add the kobject */ + ret = kobject_add(&policy->kobj, cpufreq_global_kobject, + "policy%u", + cpumask_first(policy->related_cpus)); + if (ret) { + pr_err("%s: failed to add policy->kobj: %d\n", __func__, + ret); + goto out_exit_policy; + } } /* @@ -1467,22 +1407,7 @@ static void cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif) return; } - if (cpu != policy->kobj_cpu) { - remove_cpu_dev_symlink(policy, cpu); - } else { - /* - * The CPU owning the policy object is going away. Move it to - * another suitable CPU. - */ - unsigned int new_cpu = cpumask_first(policy->real_cpus); - struct device *new_dev = get_cpu_device(new_cpu); - - dev_dbg(dev, "%s: Moving policy object to CPU%u\n", __func__, new_cpu); - - sysfs_remove_link(&new_dev->kobj, "cpufreq"); - policy->kobj_cpu = new_cpu; - WARN_ON(kobject_move(&policy->kobj, &new_dev->kobj)); - } + remove_cpu_dev_symlink(policy, cpu); } static void handle_update(struct work_struct *work) @@ -2425,7 +2350,7 @@ static int create_boost_sysfs_file(void) if (!cpufreq_driver->set_boost) cpufreq_driver->set_boost = cpufreq_boost_set_sw; - ret = cpufreq_sysfs_create_file(&boost.attr); + ret = sysfs_create_file(cpufreq_global_kobject, &boost.attr); if (ret) pr_err("%s: cannot register global BOOST sysfs file\n", __func__); @@ -2436,7 +2361,7 @@ static int create_boost_sysfs_file(void) static void remove_boost_sysfs_file(void) { if (cpufreq_boost_supported()) - cpufreq_sysfs_remove_file(&boost.attr); + sysfs_remove_file(cpufreq_global_kobject, &boost.attr); } int cpufreq_enable_boost_support(void) @@ -2584,12 +2509,15 @@ static struct syscore_ops cpufreq_syscore_ops = { .shutdown = cpufreq_suspend, }; +struct kobject *cpufreq_global_kobject; +EXPORT_SYMBOL(cpufreq_global_kobject); + static int __init cpufreq_core_init(void) { if (cpufreq_disabled()) return -ENODEV; - cpufreq_global_kobject = kobject_create(); + cpufreq_global_kobject = kobject_create_and_add("cpufreq", &cpu_subsys.dev_root->kobj); BUG_ON(!cpufreq_global_kobject); register_syscore_ops(&cpufreq_syscore_ops); diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index 84a1506950a7..1fa1deb6e91f 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -23,6 +23,19 @@ static DEFINE_PER_CPU(struct cs_cpu_dbs_info_s, cs_cpu_dbs_info); +static int cs_cpufreq_governor_dbs(struct cpufreq_policy *policy, + unsigned int event); + +#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE +static +#endif +struct cpufreq_governor cpufreq_gov_conservative = { + .name = "conservative", + .governor = cs_cpufreq_governor_dbs, + .max_transition_latency = TRANSITION_LATENCY_LIMIT, + .owner = THIS_MODULE, +}; + static inline unsigned int get_freq_target(struct cs_dbs_tuners *cs_tuners, struct cpufreq_policy *policy) { @@ -119,12 +132,14 @@ static int dbs_cpufreq_notifier(struct notifier_block *nb, unsigned long val, struct cpufreq_freqs *freq = data; struct cs_cpu_dbs_info_s *dbs_info = &per_cpu(cs_cpu_dbs_info, freq->cpu); - struct cpufreq_policy *policy; + struct cpufreq_policy *policy = cpufreq_cpu_get_raw(freq->cpu); - if (!dbs_info->enable) + if (!policy) return 0; - policy = dbs_info->cdbs.shared->policy; + /* policy isn't governed by conservative governor */ + if (policy->governor != &cpufreq_gov_conservative) + return 0; /* * we only care if our internally tracked freq moves outside the 'valid' @@ -367,16 +382,6 @@ static int cs_cpufreq_governor_dbs(struct cpufreq_policy *policy, return cpufreq_governor_dbs(policy, &cs_dbs_cdata, event); } -#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE -static -#endif -struct cpufreq_governor cpufreq_gov_conservative = { - .name = "conservative", - .governor = cs_cpufreq_governor_dbs, - .max_transition_latency = TRANSITION_LATENCY_LIMIT, - .owner = THIS_MODULE, -}; - static int __init cpufreq_gov_dbs_init(void) { return cpufreq_register_governor(&cpufreq_gov_conservative); diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c index 939197ffa4ac..11258c4c1b17 100644 --- a/drivers/cpufreq/cpufreq_governor.c +++ b/drivers/cpufreq/cpufreq_governor.c @@ -348,29 +348,21 @@ static int cpufreq_governor_init(struct cpufreq_policy *policy, set_sampling_rate(dbs_data, max(dbs_data->min_sampling_rate, latency * LATENCY_MULTIPLIER)); - if (!have_governor_per_policy()) { - if (WARN_ON(cpufreq_get_global_kobject())) { - ret = -EINVAL; - goto cdata_exit; - } + if (!have_governor_per_policy()) cdata->gdbs_data = dbs_data; - } ret = sysfs_create_group(get_governor_parent_kobj(policy), get_sysfs_attr(dbs_data)); if (ret) - goto put_kobj; + goto reset_gdbs_data; policy->governor_data = dbs_data; return 0; -put_kobj: - if (!have_governor_per_policy()) { +reset_gdbs_data: + if (!have_governor_per_policy()) cdata->gdbs_data = NULL; - cpufreq_put_global_kobject(); - } -cdata_exit: cdata->exit(dbs_data, !policy->governor->initialized); free_common_dbs_info: free_common_dbs_info(policy, cdata); @@ -394,10 +386,8 @@ static int cpufreq_governor_exit(struct cpufreq_policy *policy, sysfs_remove_group(get_governor_parent_kobj(policy), get_sysfs_attr(dbs_data)); - if (!have_governor_per_policy()) { + if (!have_governor_per_policy()) cdata->gdbs_data = NULL; - cpufreq_put_global_kobject(); - } cdata->exit(dbs_data, policy->governor->initialized == 1); kfree(dbs_data); @@ -463,7 +453,6 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy, cdata->get_cpu_dbs_info_s(cpu); cs_dbs_info->down_skip = 0; - cs_dbs_info->enable = 1; cs_dbs_info->requested_freq = policy->cur; } else { struct od_ops *od_ops = cdata->gov_ops; @@ -482,9 +471,7 @@ static int cpufreq_governor_start(struct cpufreq_policy *policy, static int cpufreq_governor_stop(struct cpufreq_policy *policy, struct dbs_data *dbs_data) { - struct common_dbs_data *cdata = dbs_data->cdata; - unsigned int cpu = policy->cpu; - struct cpu_dbs_info *cdbs = cdata->get_cpu_cdbs(cpu); + struct cpu_dbs_info *cdbs = dbs_data->cdata->get_cpu_cdbs(policy->cpu); struct cpu_common_dbs_info *shared = cdbs->shared; /* State should be equivalent to START */ @@ -493,13 +480,6 @@ static int cpufreq_governor_stop(struct cpufreq_policy *policy, gov_cancel_work(dbs_data, policy); - if (cdata->governor == GOV_CONSERVATIVE) { - struct cs_cpu_dbs_info_s *cs_dbs_info = - cdata->get_cpu_dbs_info_s(cpu); - - cs_dbs_info->enable = 0; - } - shared->policy = NULL; mutex_destroy(&shared->timer_mutex); return 0; diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h index 50f171796632..5621bb03e874 100644 --- a/drivers/cpufreq/cpufreq_governor.h +++ b/drivers/cpufreq/cpufreq_governor.h @@ -170,7 +170,6 @@ struct cs_cpu_dbs_info_s { struct cpu_dbs_info cdbs; unsigned int down_skip; unsigned int requested_freq; - unsigned int enable:1; }; /* Per policy Governors sysfs tunables */ diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index 1fa9088c84a8..03ac6ce54042 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -267,27 +267,19 @@ static void update_sampling_rate(struct dbs_data *dbs_data, dbs_info = &per_cpu(od_cpu_dbs_info, cpu); cpufreq_cpu_put(policy); - mutex_lock(&dbs_info->cdbs.shared->timer_mutex); - - if (!delayed_work_pending(&dbs_info->cdbs.dwork)) { - mutex_unlock(&dbs_info->cdbs.shared->timer_mutex); + if (!delayed_work_pending(&dbs_info->cdbs.dwork)) continue; - } next_sampling = jiffies + usecs_to_jiffies(new_rate); appointed_at = dbs_info->cdbs.dwork.timer.expires; if (time_before(next_sampling, appointed_at)) { - - mutex_unlock(&dbs_info->cdbs.shared->timer_mutex); cancel_delayed_work_sync(&dbs_info->cdbs.dwork); - mutex_lock(&dbs_info->cdbs.shared->timer_mutex); gov_queue_work(dbs_data, policy, usecs_to_jiffies(new_rate), true); } - mutex_unlock(&dbs_info->cdbs.shared->timer_mutex); } } diff --git a/drivers/cpufreq/cpufreq_opp.c b/drivers/cpufreq/cpufreq_opp.c deleted file mode 100644 index 0f5e6d5f6da0..000000000000 --- a/drivers/cpufreq/cpufreq_opp.c +++ /dev/null @@ -1,114 +0,0 @@ -/* - * Generic OPP helper interface for CPUFreq drivers - * - * Copyright (C) 2009-2014 Texas Instruments Incorporated. - * Nishanth Menon - * Romit Dasgupta - * Kevin Hilman - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#include <linux/cpufreq.h> -#include <linux/device.h> -#include <linux/err.h> -#include <linux/errno.h> -#include <linux/export.h> -#include <linux/kernel.h> -#include <linux/pm_opp.h> -#include <linux/rcupdate.h> -#include <linux/slab.h> - -/** - * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device - * @dev: device for which we do this operation - * @table: Cpufreq table returned back to caller - * - * Generate a cpufreq table for a provided device- this assumes that the - * opp list is already initialized and ready for usage. - * - * This function allocates required memory for the cpufreq table. It is - * expected that the caller does the required maintenance such as freeing - * the table as required. - * - * Returns -EINVAL for bad pointers, -ENODEV if the device is not found, -ENOMEM - * if no memory available for the operation (table is not populated), returns 0 - * if successful and table is populated. - * - * WARNING: It is important for the callers to ensure refreshing their copy of - * the table if any of the mentioned functions have been invoked in the interim. - * - * Locking: The internal device_opp and opp structures are RCU protected. - * Since we just use the regular accessor functions to access the internal data - * structures, we use RCU read lock inside this function. As a result, users of - * this function DONOT need to use explicit locks for invoking. - */ -int dev_pm_opp_init_cpufreq_table(struct device *dev, - struct cpufreq_frequency_table **table) -{ - struct dev_pm_opp *opp; - struct cpufreq_frequency_table *freq_table = NULL; - int i, max_opps, ret = 0; - unsigned long rate; - - rcu_read_lock(); - - max_opps = dev_pm_opp_get_opp_count(dev); - if (max_opps <= 0) { - ret = max_opps ? max_opps : -ENODATA; - goto out; - } - - freq_table = kcalloc((max_opps + 1), sizeof(*freq_table), GFP_ATOMIC); - if (!freq_table) { - ret = -ENOMEM; - goto out; - } - - for (i = 0, rate = 0; i < max_opps; i++, rate++) { - /* find next rate */ - opp = dev_pm_opp_find_freq_ceil(dev, &rate); - if (IS_ERR(opp)) { - ret = PTR_ERR(opp); - goto out; - } - freq_table[i].driver_data = i; - freq_table[i].frequency = rate / 1000; - - /* Is Boost/turbo opp ? */ - if (dev_pm_opp_is_turbo(opp)) - freq_table[i].flags = CPUFREQ_BOOST_FREQ; - } - - freq_table[i].driver_data = i; - freq_table[i].frequency = CPUFREQ_TABLE_END; - - *table = &freq_table[0]; - -out: - rcu_read_unlock(); - if (ret) - kfree(freq_table); - - return ret; -} -EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table); - -/** - * dev_pm_opp_free_cpufreq_table() - free the cpufreq table - * @dev: device for which we do this operation - * @table: table to free - * - * Free up the table allocated by dev_pm_opp_init_cpufreq_table - */ -void dev_pm_opp_free_cpufreq_table(struct device *dev, - struct cpufreq_frequency_table **table) -{ - if (!table) - return; - - kfree(*table); - *table = NULL; -} -EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table); diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c index 21a90ed7f3d8..c0f3373706f4 100644 --- a/drivers/cpufreq/exynos5440-cpufreq.c +++ b/drivers/cpufreq/exynos5440-cpufreq.c @@ -360,7 +360,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev) goto err_put_node; } - ret = of_init_opp_table(dvfs_info->dev); + ret = dev_pm_opp_of_add_table(dvfs_info->dev); if (ret) { dev_err(dvfs_info->dev, "failed to init OPP table: %d\n", ret); goto err_put_node; @@ -424,7 +424,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev) err_free_table: dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); err_free_opp: - of_free_opp_table(dvfs_info->dev); + dev_pm_opp_of_remove_table(dvfs_info->dev); err_put_node: of_node_put(np); dev_err(&pdev->dev, "%s: failed initialization\n", __func__); @@ -435,7 +435,7 @@ static int exynos_cpufreq_remove(struct platform_device *pdev) { cpufreq_unregister_driver(&exynos_driver); dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table); - of_free_opp_table(dvfs_info->dev); + dev_pm_opp_of_remove_table(dvfs_info->dev); return 0; } diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c index 380a90d3c57e..ef1fa8145419 100644 --- a/drivers/cpufreq/imx6q-cpufreq.c +++ b/drivers/cpufreq/imx6q-cpufreq.c @@ -30,6 +30,10 @@ static struct clk *pll1_sw_clk; static struct clk *step_clk; static struct clk *pll2_pfd2_396m_clk; +/* clk used by i.MX6UL */ +static struct clk *pll2_bus_clk; +static struct clk *secondary_sel_clk; + static struct device *cpu_dev; static bool free_opp; static struct cpufreq_frequency_table *freq_table; @@ -91,16 +95,36 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index) * The setpoints are selected per PLL/PDF frequencies, so we need to * reprogram PLL for frequency scaling. The procedure of reprogramming * PLL1 is as below. - * + * For i.MX6UL, it has a secondary clk mux, the cpu frequency change + * flow is slightly different from other i.MX6 OSC. + * The cpu frequeny change flow for i.MX6(except i.MX6UL) is as below: * - Enable pll2_pfd2_396m_clk and reparent pll1_sw_clk to it * - Reprogram pll1_sys_clk and reparent pll1_sw_clk back to it * - Disable pll2_pfd2_396m_clk */ - clk_set_parent(step_clk, pll2_pfd2_396m_clk); - clk_set_parent(pll1_sw_clk, step_clk); - if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) { - clk_set_rate(pll1_sys_clk, new_freq * 1000); + if (of_machine_is_compatible("fsl,imx6ul")) { + /* + * When changing pll1_sw_clk's parent to pll1_sys_clk, + * CPU may run at higher than 528MHz, this will lead to + * the system unstable if the voltage is lower than the + * voltage of 528MHz, so lower the CPU frequency to one + * half before changing CPU frequency. + */ + clk_set_rate(arm_clk, (old_freq >> 1) * 1000); clk_set_parent(pll1_sw_clk, pll1_sys_clk); + if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) + clk_set_parent(secondary_sel_clk, pll2_bus_clk); + else + clk_set_parent(secondary_sel_clk, pll2_pfd2_396m_clk); + clk_set_parent(step_clk, secondary_sel_clk); + clk_set_parent(pll1_sw_clk, step_clk); + } else { + clk_set_parent(step_clk, pll2_pfd2_396m_clk); + clk_set_parent(pll1_sw_clk, step_clk); + if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) { + clk_set_rate(pll1_sys_clk, new_freq * 1000); + clk_set_parent(pll1_sw_clk, pll1_sys_clk); + } } /* Ensure the arm clock divider is what we expect */ @@ -186,6 +210,16 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) goto put_clk; } + if (of_machine_is_compatible("fsl,imx6ul")) { + pll2_bus_clk = clk_get(cpu_dev, "pll2_bus"); + secondary_sel_clk = clk_get(cpu_dev, "secondary_sel"); + if (IS_ERR(pll2_bus_clk) || IS_ERR(secondary_sel_clk)) { + dev_err(cpu_dev, "failed to get clocks specific to imx6ul\n"); + ret = -ENOENT; + goto put_clk; + } + } + arm_reg = regulator_get(cpu_dev, "arm"); pu_reg = regulator_get_optional(cpu_dev, "pu"); soc_reg = regulator_get(cpu_dev, "soc"); @@ -202,7 +236,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev) */ num = dev_pm_opp_get_opp_count(cpu_dev); if (num < 0) { - ret = of_init_opp_table(cpu_dev); + ret = dev_pm_opp_of_add_table(cpu_dev); if (ret < 0) { dev_err(cpu_dev, "failed to init OPP table: %d\n", ret); goto put_reg; @@ -312,7 +346,7 @@ free_freq_table: dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); out_free_opp: if (free_opp) - of_free_opp_table(cpu_dev); + dev_pm_opp_of_remove_table(cpu_dev); put_reg: if (!IS_ERR(arm_reg)) regulator_put(arm_reg); @@ -331,6 +365,10 @@ put_clk: clk_put(step_clk); if (!IS_ERR(pll2_pfd2_396m_clk)) clk_put(pll2_pfd2_396m_clk); + if (!IS_ERR(pll2_bus_clk)) + clk_put(pll2_bus_clk); + if (!IS_ERR(secondary_sel_clk)) + clk_put(secondary_sel_clk); of_node_put(np); return ret; } @@ -340,7 +378,7 @@ static int imx6q_cpufreq_remove(struct platform_device *pdev) cpufreq_unregister_driver(&imx6q_cpufreq_driver); dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table); if (free_opp) - of_free_opp_table(cpu_dev); + dev_pm_opp_of_remove_table(cpu_dev); regulator_put(arm_reg); if (!IS_ERR(pu_reg)) regulator_put(pu_reg); @@ -350,6 +388,8 @@ static int imx6q_cpufreq_remove(struct platform_device *pdev) clk_put(pll1_sw_clk); clk_put(step_clk); clk_put(pll2_pfd2_396m_clk); + clk_put(pll2_bus_clk); + clk_put(secondary_sel_clk); return 0; } diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c index 2faa4216bf2a..79e3ff2771a6 100644 --- a/drivers/cpufreq/integrator-cpufreq.c +++ b/drivers/cpufreq/integrator-cpufreq.c @@ -221,6 +221,8 @@ static const struct of_device_id integrator_cpufreq_match[] = { { }, }; +MODULE_DEVICE_TABLE(of, integrator_cpufreq_match); + static struct platform_driver integrator_cpufreq_driver = { .driver = { .name = "integrator-cpufreq", diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index aa33b92b3e3e..93a3c635ea27 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -34,6 +34,10 @@ #include <asm/cpu_device_id.h> #include <asm/cpufeature.h> +#if IS_ENABLED(CONFIG_ACPI) +#include <acpi/processor.h> +#endif + #define BYT_RATIOS 0x66a #define BYT_VIDS 0x66b #define BYT_TURBO_RATIOS 0x66c @@ -43,7 +47,6 @@ #define int_tofp(X) ((int64_t)(X) << FRAC_BITS) #define fp_toint(X) ((X) >> FRAC_BITS) - static inline int32_t mul_fp(int32_t x, int32_t y) { return ((int64_t)x * (int64_t)y) >> FRAC_BITS; @@ -78,6 +81,7 @@ struct pstate_data { int current_pstate; int min_pstate; int max_pstate; + int max_pstate_physical; int scaling; int turbo_pstate; }; @@ -113,6 +117,9 @@ struct cpudata { u64 prev_mperf; u64 prev_tsc; struct sample sample; +#if IS_ENABLED(CONFIG_ACPI) + struct acpi_processor_performance acpi_perf_data; +#endif }; static struct cpudata **all_cpu_data; @@ -127,6 +134,7 @@ struct pstate_adjust_policy { struct pstate_funcs { int (*get_max)(void); + int (*get_max_physical)(void); int (*get_min)(void); int (*get_turbo)(void); int (*get_scaling)(void); @@ -142,6 +150,7 @@ struct cpu_defaults { static struct pstate_adjust_policy pid_params; static struct pstate_funcs pstate_funcs; static int hwp_active; +static int no_acpi_perf; struct perf_limits { int no_turbo; @@ -154,9 +163,24 @@ struct perf_limits { int max_sysfs_pct; int min_policy_pct; int min_sysfs_pct; + int max_perf_ctl; + int min_perf_ctl; +}; + +static struct perf_limits performance_limits = { + .no_turbo = 0, + .turbo_disabled = 0, + .max_perf_pct = 100, + .max_perf = int_tofp(1), + .min_perf_pct = 100, + .min_perf = int_tofp(1), + .max_policy_pct = 100, + .max_sysfs_pct = 100, + .min_policy_pct = 0, + .min_sysfs_pct = 0, }; -static struct perf_limits limits = { +static struct perf_limits powersave_limits = { .no_turbo = 0, .turbo_disabled = 0, .max_perf_pct = 100, @@ -167,8 +191,163 @@ static struct perf_limits limits = { .max_sysfs_pct = 100, .min_policy_pct = 0, .min_sysfs_pct = 0, + .max_perf_ctl = 0, + .min_perf_ctl = 0, }; +#ifdef CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE +static struct perf_limits *limits = &performance_limits; +#else +static struct perf_limits *limits = &powersave_limits; +#endif + +#if IS_ENABLED(CONFIG_ACPI) +/* + * The max target pstate ratio is a 8 bit value in both PLATFORM_INFO MSR and + * in TURBO_RATIO_LIMIT MSR, which pstate driver stores in max_pstate and + * max_turbo_pstate fields. The PERF_CTL MSR contains 16 bit value for P state + * ratio, out of it only high 8 bits are used. For example 0x1700 is setting + * target ratio 0x17. The _PSS control value stores in a format which can be + * directly written to PERF_CTL MSR. But in intel_pstate driver this shift + * occurs during write to PERF_CTL (E.g. for cores core_set_pstate()). + * This function converts the _PSS control value to intel pstate driver format + * for comparison and assignment. + */ +static int convert_to_native_pstate_format(struct cpudata *cpu, int index) +{ + return cpu->acpi_perf_data.states[index].control >> 8; +} + +static int intel_pstate_init_perf_limits(struct cpufreq_policy *policy) +{ + struct cpudata *cpu; + int ret; + bool turbo_absent = false; + int max_pstate_index; + int min_pss_ctl, max_pss_ctl, turbo_pss_ctl; + int i; + + cpu = all_cpu_data[policy->cpu]; + + pr_debug("intel_pstate: default limits 0x%x 0x%x 0x%x\n", + cpu->pstate.min_pstate, cpu->pstate.max_pstate, + cpu->pstate.turbo_pstate); + + if (!cpu->acpi_perf_data.shared_cpu_map && + zalloc_cpumask_var_node(&cpu->acpi_perf_data.shared_cpu_map, + GFP_KERNEL, cpu_to_node(policy->cpu))) { + return -ENOMEM; + } + + ret = acpi_processor_register_performance(&cpu->acpi_perf_data, + policy->cpu); + if (ret) + return ret; + + /* + * Check if the control value in _PSS is for PERF_CTL MSR, which should + * guarantee that the states returned by it map to the states in our + * list directly. + */ + if (cpu->acpi_perf_data.control_register.space_id != + ACPI_ADR_SPACE_FIXED_HARDWARE) + return -EIO; + + pr_debug("intel_pstate: CPU%u - ACPI _PSS perf data\n", policy->cpu); + for (i = 0; i < cpu->acpi_perf_data.state_count; i++) + pr_debug(" %cP%d: %u MHz, %u mW, 0x%x\n", + (i == cpu->acpi_perf_data.state ? '*' : ' '), i, + (u32) cpu->acpi_perf_data.states[i].core_frequency, + (u32) cpu->acpi_perf_data.states[i].power, + (u32) cpu->acpi_perf_data.states[i].control); + + /* + * If there is only one entry _PSS, simply ignore _PSS and continue as + * usual without taking _PSS into account + */ + if (cpu->acpi_perf_data.state_count < 2) + return 0; + + turbo_pss_ctl = convert_to_native_pstate_format(cpu, 0); + min_pss_ctl = convert_to_native_pstate_format(cpu, + cpu->acpi_perf_data.state_count - 1); + /* Check if there is a turbo freq in _PSS */ + if (turbo_pss_ctl <= cpu->pstate.max_pstate && + turbo_pss_ctl > cpu->pstate.min_pstate) { + pr_debug("intel_pstate: no turbo range exists in _PSS\n"); + limits->no_turbo = limits->turbo_disabled = 1; + cpu->pstate.turbo_pstate = cpu->pstate.max_pstate; + turbo_absent = true; + } + + /* Check if the max non turbo p state < Intel P state max */ + max_pstate_index = turbo_absent ? 0 : 1; + max_pss_ctl = convert_to_native_pstate_format(cpu, max_pstate_index); + if (max_pss_ctl < cpu->pstate.max_pstate && + max_pss_ctl > cpu->pstate.min_pstate) + cpu->pstate.max_pstate = max_pss_ctl; + + /* check If min perf > Intel P State min */ + if (min_pss_ctl > cpu->pstate.min_pstate && + min_pss_ctl < cpu->pstate.max_pstate) { + cpu->pstate.min_pstate = min_pss_ctl; + policy->cpuinfo.min_freq = min_pss_ctl * cpu->pstate.scaling; + } + + if (turbo_absent) + policy->cpuinfo.max_freq = cpu->pstate.max_pstate * + cpu->pstate.scaling; + else { + policy->cpuinfo.max_freq = cpu->pstate.turbo_pstate * + cpu->pstate.scaling; + /* + * The _PSS table doesn't contain whole turbo frequency range. + * This just contains +1 MHZ above the max non turbo frequency, + * with control value corresponding to max turbo ratio. But + * when cpufreq set policy is called, it will call with this + * max frequency, which will cause a reduced performance as + * this driver uses real max turbo frequency as the max + * frequeny. So correct this frequency in _PSS table to + * correct max turbo frequency based on the turbo ratio. + * Also need to convert to MHz as _PSS freq is in MHz. + */ + cpu->acpi_perf_data.states[0].core_frequency = + turbo_pss_ctl * 100; + } + + pr_debug("intel_pstate: Updated limits using _PSS 0x%x 0x%x 0x%x\n", + cpu->pstate.min_pstate, cpu->pstate.max_pstate, + cpu->pstate.turbo_pstate); + pr_debug("intel_pstate: policy max_freq=%d Khz min_freq = %d KHz\n", + policy->cpuinfo.max_freq, policy->cpuinfo.min_freq); + + return 0; +} + +static int intel_pstate_exit_perf_limits(struct cpufreq_policy *policy) +{ + struct cpudata *cpu; + + if (!no_acpi_perf) + return 0; + + cpu = all_cpu_data[policy->cpu]; + acpi_processor_unregister_performance(policy->cpu); + return 0; +} + +#else +static int intel_pstate_init_perf_limits(struct cpufreq_policy *policy) +{ + return 0; +} + +static int intel_pstate_exit_perf_limits(struct cpufreq_policy *policy) +{ + return 0; +} +#endif + static inline void pid_reset(struct _pid *pid, int setpoint, int busy, int deadband, int integral) { pid->setpoint = setpoint; @@ -255,7 +434,7 @@ static inline void update_turbo_state(void) cpu = all_cpu_data[0]; rdmsrl(MSR_IA32_MISC_ENABLE, misc_en); - limits.turbo_disabled = + limits->turbo_disabled = (misc_en & MSR_IA32_MISC_ENABLE_TURBO_DISABLE || cpu->pstate.max_pstate == cpu->pstate.turbo_pstate); } @@ -274,14 +453,14 @@ static void intel_pstate_hwp_set(void) for_each_online_cpu(cpu) { rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value); - adj_range = limits.min_perf_pct * range / 100; + adj_range = limits->min_perf_pct * range / 100; min = hw_min + adj_range; value &= ~HWP_MIN_PERF(~0L); value |= HWP_MIN_PERF(min); - adj_range = limits.max_perf_pct * range / 100; + adj_range = limits->max_perf_pct * range / 100; max = hw_min + adj_range; - if (limits.no_turbo) { + if (limits->no_turbo) { hw_max = HWP_GUARANTEED_PERF(cap); if (hw_max < max) max = hw_max; @@ -350,7 +529,7 @@ static void __init intel_pstate_debug_expose_params(void) static ssize_t show_##file_name \ (struct kobject *kobj, struct attribute *attr, char *buf) \ { \ - return sprintf(buf, "%u\n", limits.object); \ + return sprintf(buf, "%u\n", limits->object); \ } static ssize_t show_turbo_pct(struct kobject *kobj, @@ -386,10 +565,10 @@ static ssize_t show_no_turbo(struct kobject *kobj, ssize_t ret; update_turbo_state(); - if (limits.turbo_disabled) - ret = sprintf(buf, "%u\n", limits.turbo_disabled); + if (limits->turbo_disabled) + ret = sprintf(buf, "%u\n", limits->turbo_disabled); else - ret = sprintf(buf, "%u\n", limits.no_turbo); + ret = sprintf(buf, "%u\n", limits->no_turbo); return ret; } @@ -405,12 +584,12 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b, return -EINVAL; update_turbo_state(); - if (limits.turbo_disabled) { + if (limits->turbo_disabled) { pr_warn("intel_pstate: Turbo disabled by BIOS or unavailable on processor\n"); return -EPERM; } - limits.no_turbo = clamp_t(int, input, 0, 1); + limits->no_turbo = clamp_t(int, input, 0, 1); if (hwp_active) intel_pstate_hwp_set(); @@ -428,11 +607,15 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b, if (ret != 1) return -EINVAL; - limits.max_sysfs_pct = clamp_t(int, input, 0 , 100); - limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct); - limits.max_perf_pct = max(limits.min_policy_pct, limits.max_perf_pct); - limits.max_perf_pct = max(limits.min_perf_pct, limits.max_perf_pct); - limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100)); + limits->max_sysfs_pct = clamp_t(int, input, 0 , 100); + limits->max_perf_pct = min(limits->max_policy_pct, + limits->max_sysfs_pct); + limits->max_perf_pct = max(limits->min_policy_pct, + limits->max_perf_pct); + limits->max_perf_pct = max(limits->min_perf_pct, + limits->max_perf_pct); + limits->max_perf = div_fp(int_tofp(limits->max_perf_pct), + int_tofp(100)); if (hwp_active) intel_pstate_hwp_set(); @@ -449,11 +632,15 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b, if (ret != 1) return -EINVAL; - limits.min_sysfs_pct = clamp_t(int, input, 0 , 100); - limits.min_perf_pct = max(limits.min_policy_pct, limits.min_sysfs_pct); - limits.min_perf_pct = min(limits.max_policy_pct, limits.min_perf_pct); - limits.min_perf_pct = min(limits.max_perf_pct, limits.min_perf_pct); - limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100)); + limits->min_sysfs_pct = clamp_t(int, input, 0 , 100); + limits->min_perf_pct = max(limits->min_policy_pct, + limits->min_sysfs_pct); + limits->min_perf_pct = min(limits->max_policy_pct, + limits->min_perf_pct); + limits->min_perf_pct = min(limits->max_perf_pct, + limits->min_perf_pct); + limits->min_perf = div_fp(int_tofp(limits->min_perf_pct), + int_tofp(100)); if (hwp_active) intel_pstate_hwp_set(); @@ -533,7 +720,7 @@ static void byt_set_pstate(struct cpudata *cpudata, int pstate) u32 vid; val = (u64)pstate << 8; - if (limits.no_turbo && !limits.turbo_disabled) + if (limits->no_turbo && !limits->turbo_disabled) val |= (u64)1 << 32; vid_fp = cpudata->vid.min + mul_fp( @@ -591,7 +778,7 @@ static int core_get_min_pstate(void) return (value >> 40) & 0xFF; } -static int core_get_max_pstate(void) +static int core_get_max_pstate_physical(void) { u64 value; @@ -599,6 +786,46 @@ static int core_get_max_pstate(void) return (value >> 8) & 0xFF; } +static int core_get_max_pstate(void) +{ + u64 tar; + u64 plat_info; + int max_pstate; + int err; + + rdmsrl(MSR_PLATFORM_INFO, plat_info); + max_pstate = (plat_info >> 8) & 0xFF; + + err = rdmsrl_safe(MSR_TURBO_ACTIVATION_RATIO, &tar); + if (!err) { + /* Do some sanity checking for safety */ + if (plat_info & 0x600000000) { + u64 tdp_ctrl; + u64 tdp_ratio; + int tdp_msr; + + err = rdmsrl_safe(MSR_CONFIG_TDP_CONTROL, &tdp_ctrl); + if (err) + goto skip_tar; + + tdp_msr = MSR_CONFIG_TDP_NOMINAL + tdp_ctrl; + err = rdmsrl_safe(tdp_msr, &tdp_ratio); + if (err) + goto skip_tar; + + if (tdp_ratio - 1 == tar) { + max_pstate = tar; + pr_debug("max_pstate=TAC %x\n", max_pstate); + } else { + goto skip_tar; + } + } + } + +skip_tar: + return max_pstate; +} + static int core_get_turbo_pstate(void) { u64 value; @@ -622,7 +849,7 @@ static void core_set_pstate(struct cpudata *cpudata, int pstate) u64 val; val = (u64)pstate << 8; - if (limits.no_turbo && !limits.turbo_disabled) + if (limits->no_turbo && !limits->turbo_disabled) val |= (u64)1 << 32; wrmsrl_on_cpu(cpudata->cpu, MSR_IA32_PERF_CTL, val); @@ -652,6 +879,7 @@ static struct cpu_defaults core_params = { }, .funcs = { .get_max = core_get_max_pstate, + .get_max_physical = core_get_max_pstate_physical, .get_min = core_get_min_pstate, .get_turbo = core_get_turbo_pstate, .get_scaling = core_get_scaling, @@ -670,6 +898,7 @@ static struct cpu_defaults byt_params = { }, .funcs = { .get_max = byt_get_max_pstate, + .get_max_physical = byt_get_max_pstate, .get_min = byt_get_min_pstate, .get_turbo = byt_get_turbo_pstate, .set = byt_set_pstate, @@ -689,6 +918,7 @@ static struct cpu_defaults knl_params = { }, .funcs = { .get_max = core_get_max_pstate, + .get_max_physical = core_get_max_pstate_physical, .get_min = core_get_min_pstate, .get_turbo = knl_get_turbo_pstate, .get_scaling = core_get_scaling, @@ -702,7 +932,7 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) int max_perf_adj; int min_perf; - if (limits.no_turbo || limits.turbo_disabled) + if (limits->no_turbo || limits->turbo_disabled) max_perf = cpu->pstate.max_pstate; /* @@ -710,12 +940,23 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max) * policy, or by cpu specific default values determined through * experimentation. */ - max_perf_adj = fp_toint(mul_fp(int_tofp(max_perf), limits.max_perf)); - *max = clamp_t(int, max_perf_adj, - cpu->pstate.min_pstate, cpu->pstate.turbo_pstate); + if (limits->max_perf_ctl && limits->max_sysfs_pct >= + limits->max_policy_pct) { + *max = limits->max_perf_ctl; + } else { + max_perf_adj = fp_toint(mul_fp(int_tofp(max_perf), + limits->max_perf)); + *max = clamp_t(int, max_perf_adj, cpu->pstate.min_pstate, + cpu->pstate.turbo_pstate); + } - min_perf = fp_toint(mul_fp(int_tofp(max_perf), limits.min_perf)); - *min = clamp_t(int, min_perf, cpu->pstate.min_pstate, max_perf); + if (limits->min_perf_ctl) { + *min = limits->min_perf_ctl; + } else { + min_perf = fp_toint(mul_fp(int_tofp(max_perf), + limits->min_perf)); + *min = clamp_t(int, min_perf, cpu->pstate.min_pstate, max_perf); + } } static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate, bool force) @@ -743,6 +984,7 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu) { cpu->pstate.min_pstate = pstate_funcs.get_min(); cpu->pstate.max_pstate = pstate_funcs.get_max(); + cpu->pstate.max_pstate_physical = pstate_funcs.get_max_physical(); cpu->pstate.turbo_pstate = pstate_funcs.get_turbo(); cpu->pstate.scaling = pstate_funcs.get_scaling(); @@ -761,7 +1003,8 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu) sample->freq = fp_toint( mul_fp(int_tofp( - cpu->pstate.max_pstate * cpu->pstate.scaling / 100), + cpu->pstate.max_pstate_physical * + cpu->pstate.scaling / 100), core_pct)); sample->core_pct_busy = (int32_t)core_pct; @@ -834,7 +1077,7 @@ static inline int32_t intel_pstate_get_scaled_busy(struct cpudata *cpu) * specified pstate. */ core_busy = cpu->sample.core_pct_busy; - max_pstate = int_tofp(cpu->pstate.max_pstate); + max_pstate = int_tofp(cpu->pstate.max_pstate_physical); current_pstate = int_tofp(cpu->pstate.current_pstate); core_busy = mul_fp(core_busy, div_fp(max_pstate, current_pstate)); @@ -988,37 +1231,63 @@ static unsigned int intel_pstate_get(unsigned int cpu_num) static int intel_pstate_set_policy(struct cpufreq_policy *policy) { +#if IS_ENABLED(CONFIG_ACPI) + struct cpudata *cpu; + int i; +#endif + pr_debug("intel_pstate: %s max %u policy->max %u\n", __func__, + policy->cpuinfo.max_freq, policy->max); if (!policy->cpuinfo.max_freq) return -ENODEV; if (policy->policy == CPUFREQ_POLICY_PERFORMANCE && policy->max >= policy->cpuinfo.max_freq) { - limits.min_policy_pct = 100; - limits.min_perf_pct = 100; - limits.min_perf = int_tofp(1); - limits.max_policy_pct = 100; - limits.max_perf_pct = 100; - limits.max_perf = int_tofp(1); - limits.no_turbo = 0; + pr_debug("intel_pstate: set performance\n"); + limits = &performance_limits; return 0; } - limits.min_policy_pct = (policy->min * 100) / policy->cpuinfo.max_freq; - limits.min_policy_pct = clamp_t(int, limits.min_policy_pct, 0 , 100); - limits.max_policy_pct = (policy->max * 100) / policy->cpuinfo.max_freq; - limits.max_policy_pct = clamp_t(int, limits.max_policy_pct, 0 , 100); + pr_debug("intel_pstate: set powersave\n"); + limits = &powersave_limits; + limits->min_policy_pct = (policy->min * 100) / policy->cpuinfo.max_freq; + limits->min_policy_pct = clamp_t(int, limits->min_policy_pct, 0 , 100); + limits->max_policy_pct = (policy->max * 100) / policy->cpuinfo.max_freq; + limits->max_policy_pct = clamp_t(int, limits->max_policy_pct, 0 , 100); /* Normalize user input to [min_policy_pct, max_policy_pct] */ - limits.min_perf_pct = max(limits.min_policy_pct, limits.min_sysfs_pct); - limits.min_perf_pct = min(limits.max_policy_pct, limits.min_perf_pct); - limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct); - limits.max_perf_pct = max(limits.min_policy_pct, limits.max_perf_pct); + limits->min_perf_pct = max(limits->min_policy_pct, + limits->min_sysfs_pct); + limits->min_perf_pct = min(limits->max_policy_pct, + limits->min_perf_pct); + limits->max_perf_pct = min(limits->max_policy_pct, + limits->max_sysfs_pct); + limits->max_perf_pct = max(limits->min_policy_pct, + limits->max_perf_pct); /* Make sure min_perf_pct <= max_perf_pct */ - limits.min_perf_pct = min(limits.max_perf_pct, limits.min_perf_pct); + limits->min_perf_pct = min(limits->max_perf_pct, limits->min_perf_pct); - limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100)); - limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100)); + limits->min_perf = div_fp(int_tofp(limits->min_perf_pct), + int_tofp(100)); + limits->max_perf = div_fp(int_tofp(limits->max_perf_pct), + int_tofp(100)); + +#if IS_ENABLED(CONFIG_ACPI) + cpu = all_cpu_data[policy->cpu]; + for (i = 0; i < cpu->acpi_perf_data.state_count; i++) { + int control; + + control = convert_to_native_pstate_format(cpu, i); + if (control * cpu->pstate.scaling == policy->max) + limits->max_perf_ctl = control; + if (control * cpu->pstate.scaling == policy->min) + limits->min_perf_ctl = control; + } + + pr_debug("intel_pstate: max %u policy_max %u perf_ctl [0x%x-0x%x]\n", + policy->cpuinfo.max_freq, policy->max, limits->min_perf_ctl, + limits->max_perf_ctl); +#endif if (hwp_active) intel_pstate_hwp_set(); @@ -1062,7 +1331,7 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy) cpu = all_cpu_data[policy->cpu]; - if (limits.min_perf_pct == 100 && limits.max_perf_pct == 100) + if (limits->min_perf_pct == 100 && limits->max_perf_pct == 100) policy->policy = CPUFREQ_POLICY_PERFORMANCE; else policy->policy = CPUFREQ_POLICY_POWERSAVE; @@ -1074,18 +1343,30 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy) policy->cpuinfo.min_freq = cpu->pstate.min_pstate * cpu->pstate.scaling; policy->cpuinfo.max_freq = cpu->pstate.turbo_pstate * cpu->pstate.scaling; + if (!no_acpi_perf) + intel_pstate_init_perf_limits(policy); + /* + * If there is no acpi perf data or error, we ignore and use Intel P + * state calculated limits, So this is not fatal error. + */ policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; cpumask_set_cpu(policy->cpu, policy->cpus); return 0; } +static int intel_pstate_cpu_exit(struct cpufreq_policy *policy) +{ + return intel_pstate_exit_perf_limits(policy); +} + static struct cpufreq_driver intel_pstate_driver = { .flags = CPUFREQ_CONST_LOOPS, .verify = intel_pstate_verify_policy, .setpolicy = intel_pstate_set_policy, .get = intel_pstate_get, .init = intel_pstate_cpu_init, + .exit = intel_pstate_cpu_exit, .stop_cpu = intel_pstate_stop_cpu, .name = "intel_pstate", }; @@ -1118,6 +1399,7 @@ static void copy_pid_params(struct pstate_adjust_policy *policy) static void copy_cpu_funcs(struct pstate_funcs *funcs) { pstate_funcs.get_max = funcs->get_max; + pstate_funcs.get_max_physical = funcs->get_max_physical; pstate_funcs.get_min = funcs->get_min; pstate_funcs.get_turbo = funcs->get_turbo; pstate_funcs.get_scaling = funcs->get_scaling; @@ -1126,7 +1408,6 @@ static void copy_cpu_funcs(struct pstate_funcs *funcs) } #if IS_ENABLED(CONFIG_ACPI) -#include <acpi/processor.h> static bool intel_pstate_no_acpi_pss(void) { @@ -1318,6 +1599,9 @@ static int __init intel_pstate_setup(char *str) force_load = 1; if (!strcmp(str, "hwp_only")) hwp_only = 1; + if (!strcmp(str, "no_acpi")) + no_acpi_perf = 1; + return 0; } early_param("intel_pstate", intel_pstate_setup); diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c index 49caed293a3b..83001dc5b646 100644 --- a/drivers/cpufreq/mt8173-cpufreq.c +++ b/drivers/cpufreq/mt8173-cpufreq.c @@ -344,7 +344,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu) /* Both presence and absence of sram regulator are valid cases. */ sram_reg = regulator_get_exclusive(cpu_dev, "sram"); - ret = of_init_opp_table(cpu_dev); + ret = dev_pm_opp_of_add_table(cpu_dev); if (ret) { pr_warn("no OPP table for cpu%d\n", cpu); goto out_free_resources; @@ -378,7 +378,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu) return 0; out_free_opp_table: - of_free_opp_table(cpu_dev); + dev_pm_opp_of_remove_table(cpu_dev); out_free_resources: if (!IS_ERR(proc_reg)) @@ -404,7 +404,7 @@ static void mtk_cpu_dvfs_info_release(struct mtk_cpu_dvfs_info *info) if (!IS_ERR(info->inter_clk)) clk_put(info->inter_clk); - of_free_opp_table(info->cpu_dev); + dev_pm_opp_of_remove_table(info->cpu_dev); } static int mtk_cpufreq_init(struct cpufreq_policy *policy) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 64994e10638e..cb501386eb6e 100644 --- a/drivers/cpufreq/powernv-cpufreq.c +++ b/drivers/cpufreq/powernv-cpufreq.c @@ -327,8 +327,14 @@ static void powernv_cpufreq_throttle_check(void *data) if (chips[i].throttled) goto next; chips[i].throttled = true; - pr_info("CPU %d on Chip %u has Pmax reduced to %d\n", cpu, - chips[i].id, pmsr_pmax); + if (pmsr_pmax < powernv_pstate_info.nominal) + pr_crit("CPU %d on Chip %u has Pmax reduced below nominal frequency (%d < %d)\n", + cpu, chips[i].id, pmsr_pmax, + powernv_pstate_info.nominal); + else + pr_info("CPU %d on Chip %u has Pmax reduced below turbo frequency (%d < %d)\n", + cpu, chips[i].id, pmsr_pmax, + powernv_pstate_info.max); } else if (chips[i].throttled) { chips[i].throttled = false; pr_info("CPU %d on Chip %u has Pmax restored to %d\n", cpu, diff --git a/drivers/cpufreq/tegra20-cpufreq.c b/drivers/cpufreq/tegra20-cpufreq.c index 8084c7f7e206..2bd62845e9d5 100644 --- a/drivers/cpufreq/tegra20-cpufreq.c +++ b/drivers/cpufreq/tegra20-cpufreq.c @@ -175,9 +175,7 @@ static struct cpufreq_driver tegra_cpufreq_driver = { .exit = tegra_cpu_exit, .name = "tegra", .attr = cpufreq_generic_attr, -#ifdef CONFIG_PM .suspend = cpufreq_generic_suspend, -#endif }; static int __init tegra_cpufreq_init(void) diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c index 980151f34707..01a856971f05 100644 --- a/drivers/cpuidle/cpuidle-mvebu-v7.c +++ b/drivers/cpuidle/cpuidle-mvebu-v7.c @@ -99,44 +99,40 @@ static struct cpuidle_driver armada38x_idle_driver = { static int mvebu_v7_cpuidle_probe(struct platform_device *pdev) { - mvebu_v7_cpu_suspend = pdev->dev.platform_data; + const struct platform_device_id *id = pdev->id_entry; - if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-xp")) - return cpuidle_register(&armadaxp_idle_driver, NULL); - else if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-370")) - return cpuidle_register(&armada370_idle_driver, NULL); - else if (!strcmp(pdev->dev.driver->name, "cpuidle-armada-38x")) - return cpuidle_register(&armada38x_idle_driver, NULL); - else + if (!id) return -EINVAL; -} -static struct platform_driver armadaxp_cpuidle_plat_driver = { - .driver = { - .name = "cpuidle-armada-xp", - }, - .probe = mvebu_v7_cpuidle_probe, -}; + mvebu_v7_cpu_suspend = pdev->dev.platform_data; -module_platform_driver(armadaxp_cpuidle_plat_driver); + return cpuidle_register((struct cpuidle_driver *)id->driver_data, NULL); +} -static struct platform_driver armada370_cpuidle_plat_driver = { - .driver = { +static const struct platform_device_id mvebu_cpuidle_ids[] = { + { + .name = "cpuidle-armada-xp", + .driver_data = (unsigned long)&armadaxp_idle_driver, + }, { .name = "cpuidle-armada-370", + .driver_data = (unsigned long)&armada370_idle_driver, + }, { + .name = "cpuidle-armada-38x", + .driver_data = (unsigned long)&armada38x_idle_driver, }, - .probe = mvebu_v7_cpuidle_probe, + {} }; -module_platform_driver(armada370_cpuidle_plat_driver); - -static struct platform_driver armada38x_cpuidle_plat_driver = { +static struct platform_driver mvebu_cpuidle_driver = { + .probe = mvebu_v7_cpuidle_probe, .driver = { - .name = "cpuidle-armada-38x", + .name = "cpuidle-mbevu", + .suppress_bind_attrs = true, }, - .probe = mvebu_v7_cpuidle_probe, + .id_table = mvebu_cpuidle_ids, }; -module_platform_driver(armada38x_cpuidle_plat_driver); +builtin_platform_driver(mvebu_cpuidle_driver); MODULE_AUTHOR("Gregory CLEMENT <gregory.clement@free-electrons.com>"); MODULE_DESCRIPTION("Marvell EBU v7 cpuidle driver"); diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c index 5a635646e05c..981a38fc4cb8 100644 --- a/drivers/dma/acpi-dma.c +++ b/drivers/dma/acpi-dma.c @@ -21,6 +21,7 @@ #include <linux/ioport.h> #include <linux/acpi.h> #include <linux/acpi_dma.h> +#include <linux/property.h> static LIST_HEAD(acpi_dma_list); static DEFINE_MUTEX(acpi_dma_lock); @@ -413,21 +414,29 @@ EXPORT_SYMBOL_GPL(acpi_dma_request_slave_chan_by_index); * translate the names "tx" and "rx" here based on the most common case where * the first FixedDMA descriptor is TX and second is RX. * + * If the device has "dma-names" property the FixedDMA descriptor indices + * are retrieved based on those. Otherwise the function falls back using + * hardcoded indices. + * * Return: * Pointer to appropriate dma channel on success or an error pointer. */ struct dma_chan *acpi_dma_request_slave_chan_by_name(struct device *dev, const char *name) { - size_t index; - - if (!strcmp(name, "tx")) - index = 0; - else if (!strcmp(name, "rx")) - index = 1; - else - return ERR_PTR(-ENODEV); + int index; + + index = device_property_match_string(dev, "dma-names", name); + if (index < 0) { + if (!strcmp(name, "tx")) + index = 0; + else if (!strcmp(name, "rx")) + index = 1; + else + return ERR_PTR(-ENODEV); + } + dev_dbg(dev, "found DMA channel \"%s\" at index %d\n", name, index); return acpi_dma_request_slave_chan_by_index(dev, index); } EXPORT_SYMBOL_GPL(acpi_dma_request_slave_chan_by_name); diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 143a9bdbaa53..69a83626f1ae 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -389,6 +389,8 @@ struct acpi_gpio_lookup { struct acpi_gpio_info info; int index; int pin_index; + bool active_low; + struct acpi_device *adev; struct gpio_desc *desc; int n; }; @@ -425,6 +427,65 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data) return 1; } +static int acpi_gpio_resource_lookup(struct acpi_gpio_lookup *lookup, + struct acpi_gpio_info *info) +{ + struct list_head res_list; + int ret; + + INIT_LIST_HEAD(&res_list); + + ret = acpi_dev_get_resources(lookup->adev, &res_list, acpi_find_gpio, + lookup); + if (ret < 0) + return ret; + + acpi_dev_free_resource_list(&res_list); + + if (!lookup->desc) + return -ENOENT; + + if (info) { + *info = lookup->info; + if (lookup->active_low) + info->active_low = lookup->active_low; + } + return 0; +} + +static int acpi_gpio_property_lookup(struct fwnode_handle *fwnode, + const char *propname, int index, + struct acpi_gpio_lookup *lookup) +{ + struct acpi_reference_args args; + int ret; + + memset(&args, 0, sizeof(args)); + ret = acpi_node_get_property_reference(fwnode, propname, index, &args); + if (ret) { + struct acpi_device *adev = to_acpi_device_node(fwnode); + + if (!adev) + return ret; + + if (!acpi_get_driver_gpio_data(adev, propname, index, &args)) + return ret; + } + /* + * The property was found and resolved, so need to lookup the GPIO based + * on returned args. + */ + lookup->adev = args.adev; + if (args.nargs >= 2) { + lookup->index = args.args[0]; + lookup->pin_index = args.args[1]; + /* 3rd argument, if present is used to specify active_low. */ + if (args.nargs >= 3) + lookup->active_low = !!args.args[2]; + } + return 0; +} + /** * acpi_get_gpiod_by_index() - get a GPIO descriptor from device resources * @adev: pointer to a ACPI device to get GPIO from @@ -452,8 +513,6 @@ struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev, struct acpi_gpio_info *info) { struct acpi_gpio_lookup lookup; - struct list_head resource_list; - bool active_low = false; int ret; if (!adev) @@ -463,58 +522,64 @@ struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev, lookup.index = index; if (propname) { - struct acpi_reference_args args; - dev_dbg(&adev->dev, "GPIO: looking up %s\n", propname); - memset(&args, 0, sizeof(args)); - ret = acpi_dev_get_property_reference(adev, propname, - index, &args); - if (ret) { - bool found = acpi_get_driver_gpio_data(adev, propname, - index, &args); - if (!found) - return ERR_PTR(ret); - } + ret = acpi_gpio_property_lookup(acpi_fwnode_handle(adev), + propname, index, &lookup); + if (ret) + return ERR_PTR(ret); - /* - * The property was found and resolved so need to - * lookup the GPIO based on returned args instead. - */ - adev = args.adev; - if (args.nargs >= 2) { - lookup.index = args.args[0]; - lookup.pin_index = args.args[1]; - /* - * 3rd argument, if present is used to - * specify active_low. - */ - if (args.nargs >= 3) - active_low = !!args.args[2]; - } - - dev_dbg(&adev->dev, "GPIO: _DSD returned %s %zd %llu %llu %llu\n", - dev_name(&adev->dev), args.nargs, - args.args[0], args.args[1], args.args[2]); + dev_dbg(&adev->dev, "GPIO: _DSD returned %s %d %d %u\n", + dev_name(&lookup.adev->dev), lookup.index, + lookup.pin_index, lookup.active_low); } else { dev_dbg(&adev->dev, "GPIO: looking up %d in _CRS\n", index); + lookup.adev = adev; } - INIT_LIST_HEAD(&resource_list); - ret = acpi_dev_get_resources(adev, &resource_list, acpi_find_gpio, - &lookup); - if (ret < 0) - return ERR_PTR(ret); + ret = acpi_gpio_resource_lookup(&lookup, info); + return ret ? ERR_PTR(ret) : lookup.desc; +} + +/** + * acpi_node_get_gpiod() - get a GPIO descriptor from ACPI resources + * @fwnode: pointer to an ACPI firmware node to get the GPIO information from + * @propname: Property name of the GPIO + * @index: index of GpioIo/GpioInt resource (starting from %0) + * @info: info pointer to fill in (optional) + * + * If @fwnode is an ACPI device object, call %acpi_get_gpiod_by_index() for it. + * Otherwise (ie. it is a data-only non-device object), use the property-based + * GPIO lookup to get to the GPIO resource with the relevant information and use + * that to obtain the GPIO descriptor to return. + */ +struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode, + const char *propname, int index, + struct acpi_gpio_info *info) +{ + struct acpi_gpio_lookup lookup; + struct acpi_device *adev; + int ret; - acpi_dev_free_resource_list(&resource_list); + adev = to_acpi_device_node(fwnode); + if (adev) + return acpi_get_gpiod_by_index(adev, propname, index, info); - if (lookup.desc && info) { - *info = lookup.info; - if (active_low) - info->active_low = active_low; - } + if (!is_acpi_data_node(fwnode)) + return ERR_PTR(-ENODEV); + + if (!propname) + return ERR_PTR(-EINVAL); + + memset(&lookup, 0, sizeof(lookup)); + lookup.index = index; + + ret = acpi_gpio_property_lookup(fwnode, propname, index, &lookup); + if (ret) + return ERR_PTR(ret); - return lookup.desc ? lookup.desc : ERR_PTR(-ENOENT); + ret = acpi_gpio_resource_lookup(&lookup, info); + return ret ? ERR_PTR(ret) : lookup.desc; } /** diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 5db3445552b1..c52a70f3d0a8 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -2093,8 +2093,7 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode, } else if (is_acpi_node(fwnode)) { struct acpi_gpio_info info; - desc = acpi_get_gpiod_by_index(to_acpi_node(fwnode), propname, 0, - &info); + desc = acpi_node_get_gpiod(fwnode, propname, 0, &info); if (!IS_ERR(desc)) active_low = info.active_low; } diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h index bf343004b008..e69c7157cdad 100644 --- a/drivers/gpio/gpiolib.h +++ b/drivers/gpio/gpiolib.h @@ -42,6 +42,9 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip); struct gpio_desc *acpi_get_gpiod_by_index(struct acpi_device *adev, const char *propname, int index, struct acpi_gpio_info *info); +struct gpio_desc *acpi_node_get_gpiod(struct fwnode_handle *fwnode, + const char *propname, int index, + struct acpi_gpio_info *info); int acpi_gpio_count(struct device *dev, const char *con_id); #else @@ -60,7 +63,12 @@ acpi_get_gpiod_by_index(struct acpi_device *adev, const char *propname, { return ERR_PTR(-ENOSYS); } - +static inline struct gpio_desc * +acpi_node_get_gpiod(struct fwnode_handle *fwnode, const char *propname, + int index, struct acpi_gpio_info *info) +{ + return ERR_PTR(-ENXIO); +} static inline int acpi_gpio_count(struct device *dev, const char *con_id) { return -ENODEV; diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c index db91de539ee3..454195709a82 100644 --- a/drivers/input/serio/i8042.c +++ b/drivers/input/serio/i8042.c @@ -24,6 +24,7 @@ #include <linux/platform_device.h> #include <linux/i8042.h> #include <linux/slab.h> +#include <linux/suspend.h> #include <asm/io.h> @@ -1170,7 +1171,8 @@ static int i8042_pm_suspend(struct device *dev) { int i; - i8042_controller_reset(true); + if (pm_suspend_via_firmware()) + i8042_controller_reset(true); /* Set up serio interrupts for system wakeup. */ for (i = 0; i < I8042_NUM_PORTS; i++) { @@ -1183,8 +1185,17 @@ static int i8042_pm_suspend(struct device *dev) return 0; } +static int i8042_pm_resume_noirq(struct device *dev) +{ + if (!pm_resume_via_firmware()) + i8042_interrupt(0, NULL); + + return 0; +} + static int i8042_pm_resume(struct device *dev) { + bool force_reset; int i; for (i = 0; i < I8042_NUM_PORTS; i++) { @@ -1195,11 +1206,21 @@ static int i8042_pm_resume(struct device *dev) } /* - * On resume from S2R we always try to reset the controller - * to bring it in a sane state. (In case of S2D we expect - * BIOS to reset the controller for us.) + * If platform firmware was not going to be involved in suspend, we did + * not restore the controller state to whatever it had been at boot + * time, so we do not need to do anything. */ - return i8042_controller_resume(true); + if (!pm_suspend_via_firmware()) + return 0; + + /* + * We only need to reset the controller if we are resuming after handing + * off control to the platform firmware, otherwise we can simply restore + * the mode. + */ + force_reset = pm_resume_via_firmware(); + + return i8042_controller_resume(force_reset); } static int i8042_pm_thaw(struct device *dev) @@ -1223,6 +1244,7 @@ static int i8042_pm_restore(struct device *dev) static const struct dev_pm_ops i8042_pm_ops = { .suspend = i8042_pm_suspend, + .resume_noirq = i8042_pm_resume_noirq, .resume = i8042_pm_resume, .thaw = i8042_pm_thaw, .poweroff = i8042_pm_reset, diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 982c09c2d791..d4add30d1d46 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -41,7 +41,6 @@ #include <linux/irqchip.h> #include <linux/irqchip/chained_irq.h> #include <linux/irqchip/arm-gic.h> -#include <linux/irqchip/arm-gic-acpi.h> #include <asm/cputype.h> #include <asm/irq.h> @@ -1195,7 +1194,7 @@ IRQCHIP_DECLARE(msm_qgic2, "qcom,msm-qgic2", gic_of_init); #endif #ifdef CONFIG_ACPI -static phys_addr_t dist_phy_base, cpu_phy_base __initdata; +static phys_addr_t cpu_phy_base __initdata; static int __init gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header, @@ -1223,60 +1222,56 @@ gic_acpi_parse_madt_cpu(struct acpi_subtable_header *header, return 0; } -static int __init -gic_acpi_parse_madt_distributor(struct acpi_subtable_header *header, - const unsigned long end) +/* The things you have to do to just *count* something... */ +static int __init acpi_dummy_func(struct acpi_subtable_header *header, + const unsigned long end) { - struct acpi_madt_generic_distributor *dist; + return 0; +} - dist = (struct acpi_madt_generic_distributor *)header; +static bool __init acpi_gic_redist_is_present(void) +{ + return acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR, + acpi_dummy_func, 0) > 0; +} - if (BAD_MADT_ENTRY(dist, end)) - return -EINVAL; +static bool __init gic_validate_dist(struct acpi_subtable_header *header, + struct acpi_probe_entry *ape) +{ + struct acpi_madt_generic_distributor *dist; + dist = (struct acpi_madt_generic_distributor *)header; - dist_phy_base = dist->base_address; - return 0; + return (dist->version == ape->driver_data && + (dist->version != ACPI_MADT_GIC_VERSION_NONE || + !acpi_gic_redist_is_present())); } -int __init -gic_v2_acpi_init(struct acpi_table_header *table) +#define ACPI_GICV2_DIST_MEM_SIZE (SZ_4K) +#define ACPI_GIC_CPU_IF_MEM_SIZE (SZ_8K) + +static int __init gic_v2_acpi_init(struct acpi_subtable_header *header, + const unsigned long end) { + struct acpi_madt_generic_distributor *dist; void __iomem *cpu_base, *dist_base; int count; /* Collect CPU base addresses */ - count = acpi_parse_entries(ACPI_SIG_MADT, - sizeof(struct acpi_table_madt), - gic_acpi_parse_madt_cpu, table, - ACPI_MADT_TYPE_GENERIC_INTERRUPT, 0); + count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, + gic_acpi_parse_madt_cpu, 0); if (count <= 0) { pr_err("No valid GICC entries exist\n"); return -EINVAL; } - /* - * Find distributor base address. We expect one distributor entry since - * ACPI 5.1 spec neither support multi-GIC instances nor GIC cascade. - */ - count = acpi_parse_entries(ACPI_SIG_MADT, - sizeof(struct acpi_table_madt), - gic_acpi_parse_madt_distributor, table, - ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, 0); - if (count <= 0) { - pr_err("No valid GICD entries exist\n"); - return -EINVAL; - } else if (count > 1) { - pr_err("More than one GICD entry detected\n"); - return -EINVAL; - } - cpu_base = ioremap(cpu_phy_base, ACPI_GIC_CPU_IF_MEM_SIZE); if (!cpu_base) { pr_err("Unable to map GICC registers\n"); return -ENOMEM; } - dist_base = ioremap(dist_phy_base, ACPI_GICV2_DIST_MEM_SIZE); + dist = (struct acpi_madt_generic_distributor *)header; + dist_base = ioremap(dist->base_address, ACPI_GICV2_DIST_MEM_SIZE); if (!dist_base) { pr_err("Unable to map GICD registers\n"); iounmap(cpu_base); @@ -1302,4 +1297,10 @@ gic_v2_acpi_init(struct acpi_table_header *table) acpi_irq_model = ACPI_IRQ_MODEL_GIC; return 0; } +IRQCHIP_ACPI_DECLARE(gic_v2, ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, + gic_validate_dist, ACPI_MADT_GIC_VERSION_V2, + gic_v2_acpi_init); +IRQCHIP_ACPI_DECLARE(gic_v2_maybe, ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, + gic_validate_dist, ACPI_MADT_GIC_VERSION_NONE, + gic_v2_acpi_init); #endif diff --git a/drivers/irqchip/irqchip.c b/drivers/irqchip/irqchip.c index afd1af3dfe5a..2b35e68bea82 100644 --- a/drivers/irqchip/irqchip.c +++ b/drivers/irqchip/irqchip.c @@ -8,7 +8,7 @@ * warranty of any kind, whether express or implied. */ -#include <linux/acpi_irq.h> +#include <linux/acpi.h> #include <linux/init.h> #include <linux/of_irq.h> #include <linux/irqchip.h> @@ -27,6 +27,5 @@ extern struct of_device_id __irqchip_of_table[]; void __init irqchip_init(void) { of_irq_init(__irqchip_of_table); - - acpi_irq_init(); + acpi_probe_device_table(irqchip); } diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 108a3118ace7..306124bba61e 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -684,10 +684,16 @@ static int pci_pm_prepare(struct device *dev) return pci_dev_keep_suspended(to_pci_dev(dev)); } +static void pci_pm_complete(struct device *dev) +{ + pci_dev_complete_resume(to_pci_dev(dev)); + pm_complete_with_resume_check(dev); +} #else /* !CONFIG_PM_SLEEP */ #define pci_pm_prepare NULL +#define pci_pm_complete NULL #endif /* !CONFIG_PM_SLEEP */ @@ -1218,6 +1224,7 @@ static int pci_pm_runtime_idle(struct device *dev) static const struct dev_pm_ops pci_dev_pm_ops = { .prepare = pci_pm_prepare, + .complete = pci_pm_complete, .suspend = pci_pm_suspend, .resume = pci_pm_resume, .freeze = pci_pm_freeze, diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6a9a1116f1eb..78693fc5dbe9 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1710,15 +1710,7 @@ static void pci_pme_list_scan(struct work_struct *work) mutex_unlock(&pci_pme_list_mutex); } -/** - * pci_pme_active - enable or disable PCI device's PME# function - * @dev: PCI device to handle. - * @enable: 'true' to enable PME# generation; 'false' to disable it. - * - * The caller must verify that the device is capable of generating PME# before - * calling this function with @enable equal to 'true'. - */ -void pci_pme_active(struct pci_dev *dev, bool enable) +static void __pci_pme_active(struct pci_dev *dev, bool enable) { u16 pmcsr; @@ -1732,6 +1724,19 @@ void pci_pme_active(struct pci_dev *dev, bool enable) pmcsr &= ~PCI_PM_CTRL_PME_ENABLE; pci_write_config_word(dev, dev->pm_cap + PCI_PM_CTRL, pmcsr); +} + +/** + * pci_pme_active - enable or disable PCI device's PME# function + * @dev: PCI device to handle. + * @enable: 'true' to enable PME# generation; 'false' to disable it. + * + * The caller must verify that the device is capable of generating PME# before + * calling this function with @enable equal to 'true'. + */ +void pci_pme_active(struct pci_dev *dev, bool enable) +{ + __pci_pme_active(dev, enable); /* * PCI (as opposed to PCIe) PME requires that the device have @@ -2032,17 +2037,60 @@ EXPORT_SYMBOL_GPL(pci_dev_run_wake); * reconfigured due to wakeup settings difference between system and runtime * suspend and the current power state of it is suitable for the upcoming * (system) transition. + * + * If the device is not configured for system wakeup, disable PME for it before + * returning 'true' to prevent it from waking up the system unnecessarily. */ bool pci_dev_keep_suspended(struct pci_dev *pci_dev) { struct device *dev = &pci_dev->dev; if (!pm_runtime_suspended(dev) - || (device_can_wakeup(dev) && !device_may_wakeup(dev)) + || pci_target_state(pci_dev) != pci_dev->current_state || platform_pci_need_resume(pci_dev)) return false; - return pci_target_state(pci_dev) == pci_dev->current_state; + /* + * At this point the device is good to go unless it's been configured + * to generate PME at the runtime suspend time, but it is not supposed + * to wake up the system. In that case, simply disable PME for it + * (it will have to be re-enabled on exit from system resume). + * + * If the device's power state is D3cold and the platform check above + * hasn't triggered, the device's configuration is suitable and we don't + * need to manipulate it at all. + */ + spin_lock_irq(&dev->power.lock); + + if (pm_runtime_suspended(dev) && pci_dev->current_state < PCI_D3cold && + !device_may_wakeup(dev)) + __pci_pme_active(pci_dev, false); + + spin_unlock_irq(&dev->power.lock); + return true; +} + +/** + * pci_dev_complete_resume - Finalize resume from system sleep for a device. + * @pci_dev: Device to handle. + * + * If the device is runtime suspended and wakeup-capable, enable PME for it as + * it might have been disabled during the prepare phase of system suspend if + * the device was not configured for system wakeup. + */ +void pci_dev_complete_resume(struct pci_dev *pci_dev) +{ + struct device *dev = &pci_dev->dev; + + if (!pci_dev_run_wake(pci_dev)) + return; + + spin_lock_irq(&dev->power.lock); + + if (pm_runtime_suspended(dev) && pci_dev->current_state < PCI_D3cold) + __pci_pme_active(pci_dev, true); + + spin_unlock_irq(&dev->power.lock); } void pci_config_pm_runtime_get(struct pci_dev *pdev) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 24ba9dc8910a..037e787a3ad5 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -75,6 +75,7 @@ void pci_disable_enabled_device(struct pci_dev *dev); int pci_finish_runtime_suspend(struct pci_dev *dev); int __pci_pme_wakeup(struct pci_dev *dev, void *ign); bool pci_dev_keep_suspended(struct pci_dev *dev); +void pci_dev_complete_resume(struct pci_dev *pci_dev); void pci_config_pm_runtime_get(struct pci_dev *dev); void pci_config_pm_runtime_put(struct pci_dev *dev); void pci_pm_init(struct pci_dev *dev); diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 5153d1d69aee..9113876487ed 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -207,7 +207,7 @@ struct pnp_protocol pnpacpi_protocol = { }; EXPORT_SYMBOL(pnpacpi_protocol); -static char *__init pnpacpi_get_id(struct acpi_device *device) +static const char *__init pnpacpi_get_id(struct acpi_device *device) { struct acpi_hardware_id *id; @@ -222,7 +222,7 @@ static char *__init pnpacpi_get_id(struct acpi_device *device) static int __init pnpacpi_add_device(struct acpi_device *device) { struct pnp_dev *dev; - char *pnpid; + const char *pnpid; struct acpi_hardware_id *id; int error; diff --git a/drivers/power/avs/rockchip-io-domain.c b/drivers/power/avs/rockchip-io-domain.c index 2e300028f0f7..80994566a1c8 100644 --- a/drivers/power/avs/rockchip-io-domain.c +++ b/drivers/power/avs/rockchip-io-domain.c @@ -271,6 +271,7 @@ static const struct of_device_id rockchip_iodomain_match[] = { }, { /* sentinel */ }, }; +MODULE_DEVICE_TABLE(of, rockchip_iodomain_match); static int rockchip_iodomain_probe(struct platform_device *pdev) { diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c index 5efacd050c7d..cc97f0869791 100644 --- a/drivers/powercap/intel_rapl.c +++ b/drivers/powercap/intel_rapl.c @@ -1102,6 +1102,7 @@ static const struct x86_cpu_id rapl_ids[] __initconst = { RAPL_CPU(0x4A, rapl_defaults_tng),/* Tangier */ RAPL_CPU(0x56, rapl_defaults_core),/* Future Xeon */ RAPL_CPU(0x5A, rapl_defaults_ann),/* Annidale */ + RAPL_CPU(0X5C, rapl_defaults_core),/* Broxton */ RAPL_CPU(0x5E, rapl_defaults_core),/* Skylake-H/S */ RAPL_CPU(0x57, rapl_defaults_hsw_server),/* Knights Landing */ {} diff --git a/drivers/soc/dove/pmu.c b/drivers/soc/dove/pmu.c index 052aecf29893..abd087917f80 100644 --- a/drivers/soc/dove/pmu.c +++ b/drivers/soc/dove/pmu.c @@ -396,7 +396,6 @@ int __init dove_init_pmu(void) __pmu_domain_register(domain, np); } - pm_genpd_poweroff_unused(); /* Loss of the interrupt controller is not a fatal error. */ parent_irq = irq_of_parse_and_map(pmu->of_node, 0); diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h index 9f20eb4acaa6..204f5819d464 100644 --- a/include/acpi/acexcep.h +++ b/include/acpi/acexcep.h @@ -193,8 +193,9 @@ struct acpi_exception_info { #define AE_AML_ILLEGAL_ADDRESS EXCEP_AML (0x0020) #define AE_AML_INFINITE_LOOP EXCEP_AML (0x0021) #define AE_AML_UNINITIALIZED_NODE EXCEP_AML (0x0022) +#define AE_AML_TARGET_TYPE EXCEP_AML (0x0023) -#define AE_CODE_AML_MAX 0x0022 +#define AE_CODE_AML_MAX 0x0023 /* * Internal exceptions used for control @@ -358,7 +359,9 @@ static const struct acpi_exception_info acpi_gbl_exception_names_aml[] = { EXCEP_TXT("AE_AML_INFINITE_LOOP", "An apparent infinite AML While loop, method was aborted"), EXCEP_TXT("AE_AML_UNINITIALIZED_NODE", - "A namespace node is uninitialized or unresolved") + "A namespace node is uninitialized or unresolved"), + EXCEP_TXT("AE_AML_TARGET_TYPE", + "A target operand of an incorrect type was encountered") }; static const struct acpi_exception_info acpi_gbl_exception_names_ctrl[] = { diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index 5ba8fb64f664..d11eff8a4efe 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -129,7 +129,7 @@ static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( struct acpi_scan_handler { const struct acpi_device_id *ids; struct list_head list_node; - bool (*match)(char *idstr, const struct acpi_device_id **matchid); + bool (*match)(const char *idstr, const struct acpi_device_id **matchid); int (*attach)(struct acpi_device *dev, const struct acpi_device_id *id); void (*detach)(struct acpi_device *dev); void (*bind)(struct device *phys_dev); @@ -227,7 +227,7 @@ typedef char acpi_device_class[20]; struct acpi_hardware_id { struct list_head list; - char *id; + const char *id; }; struct acpi_pnp_type { @@ -343,6 +343,7 @@ struct acpi_device_data { const union acpi_object *pointer; const union acpi_object *properties; const union acpi_object *of_compatible; + struct list_head subnodes; }; struct acpi_gpio_mapping; @@ -378,6 +379,17 @@ struct acpi_device { void (*remove)(struct acpi_device *); }; +/* Non-device subnode */ +struct acpi_data_node { + const char *name; + acpi_handle handle; + struct fwnode_handle fwnode; + struct acpi_device_data data; + struct list_head sibling; + struct kobject kobj; + struct completion kobj_done; +}; + static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) { bool ret = false; @@ -413,15 +425,32 @@ static inline bool acpi_check_dma(struct acpi_device *adev, bool *coherent) static inline bool is_acpi_node(struct fwnode_handle *fwnode) { + return fwnode && (fwnode->type == FWNODE_ACPI + || fwnode->type == FWNODE_ACPI_DATA); +} + +static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) +{ return fwnode && fwnode->type == FWNODE_ACPI; } -static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode) +static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) { - return is_acpi_node(fwnode) ? + return is_acpi_device_node(fwnode) ? container_of(fwnode, struct acpi_device, fwnode) : NULL; } +static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) +{ + return fwnode && fwnode->type == FWNODE_ACPI_DATA; +} + +static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) +{ + return is_acpi_data_node(fwnode) ? + container_of(fwnode, struct acpi_data_node, fwnode) : NULL; +} + static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev) { return &adev->fwnode; diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h index a54ad1cc990c..fbc2baf2b9dc 100644 --- a/include/acpi/acpiosxf.h +++ b/include/acpi/acpiosxf.h @@ -55,7 +55,8 @@ typedef enum { OSL_GLOBAL_LOCK_HANDLER, OSL_NOTIFY_HANDLER, OSL_GPE_HANDLER, - OSL_DEBUGGER_THREAD, + OSL_DEBUGGER_MAIN_THREAD, + OSL_DEBUGGER_EXEC_THREAD, OSL_EC_POLL_HANDLER, OSL_EC_BURST_HANDLER } acpi_execute_type; diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index c33eeabde160..3aaaa8630735 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -46,7 +46,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20150818 +#define ACPI_CA_VERSION 0x20150930 #include <acpi/acconfig.h> #include <acpi/actypes.h> @@ -393,15 +393,11 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status __init acpi_terminate(void)) */ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void)) -#ifdef ACPI_FUTURE_USAGE ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_subsystem_status(void)) -#endif -#ifdef ACPI_FUTURE_USAGE ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_get_system_info(struct acpi_buffer *ret_buffer)) -#endif ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_get_statistics(struct acpi_statistics *stats)) ACPI_EXTERNAL_RETURN_PTR(const char @@ -625,11 +621,9 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status space_id, acpi_adr_space_handler handler)) -#ifdef ACPI_FUTURE_USAGE ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_install_exception_handler (acpi_exception_handler handler)) -#endif ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_install_interface_handler (acpi_interface_handler handler)) @@ -750,12 +744,10 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_get_current_resources(acpi_handle device, struct acpi_buffer *ret_buffer)) -#ifdef ACPI_FUTURE_USAGE ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_get_possible_resources(acpi_handle device, struct acpi_buffer *ret_buffer)) -#endif ACPI_EXTERNAL_RETURN_STATUS(acpi_status acpi_get_event_resources(acpi_handle device_handle, struct acpi_buffer @@ -844,7 +836,6 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status /* * ACPI Timer interfaces */ -#ifdef ACPI_FUTURE_USAGE ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer_resolution(u32 *resolution)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer(u32 *ticks)) @@ -853,7 +844,6 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 *time_elapsed)) -#endif /* ACPI_FUTURE_USAGE */ /* * Error/Warning output @@ -939,4 +929,6 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status void **data, void (*callback)(void *))) +void acpi_set_debugger_thread_id(acpi_thread_id thread_id); + #endif /* __ACXFACE_H__ */ diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index fcd570999f35..1bb979e3e3f5 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -1012,7 +1012,7 @@ struct acpi_nfit_memory_map { #define ACPI_NFIT_MEM_SAVE_FAILED (1) /* 00: Last SAVE to Memory Device failed */ #define ACPI_NFIT_MEM_RESTORE_FAILED (1<<1) /* 01: Last RESTORE from Memory Device failed */ #define ACPI_NFIT_MEM_FLUSH_FAILED (1<<2) /* 02: Platform flush failed */ -#define ACPI_NFIT_MEM_ARMED (1<<3) /* 03: Memory Device observed to be not armed */ +#define ACPI_NFIT_MEM_NOT_ARMED (1<<3) /* 03: Memory Device is not armed */ #define ACPI_NFIT_MEM_HEALTH_OBSERVED (1<<4) /* 04: Memory Device observed SMART/health events */ #define ACPI_NFIT_MEM_HEALTH_ENABLED (1<<5) /* 05: SMART/health events enabled */ diff --git a/include/acpi/cppc_acpi.h b/include/acpi/cppc_acpi.h new file mode 100644 index 000000000000..717a29810473 --- /dev/null +++ b/include/acpi/cppc_acpi.h @@ -0,0 +1,138 @@ +/* + * CPPC (Collaborative Processor Performance Control) methods used + * by CPUfreq drivers. + * + * (C) Copyright 2014, 2015 Linaro Ltd. + * Author: Ashwin Chaugule <ashwin.chaugule@linaro.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; version 2 + * of the License. + */ + +#ifndef _CPPC_ACPI_H +#define _CPPC_ACPI_H + +#include <linux/acpi.h> +#include <linux/mailbox_controller.h> +#include <linux/mailbox_client.h> +#include <linux/types.h> + +#include <acpi/processor.h> + +/* Only support CPPCv2 for now. */ +#define CPPC_NUM_ENT 21 +#define CPPC_REV 2 + +#define PCC_CMD_COMPLETE 1 +#define MAX_CPC_REG_ENT 19 + +/* CPPC specific PCC commands. */ +#define CMD_READ 0 +#define CMD_WRITE 1 + +/* Each register has the folowing format. */ +struct cpc_reg { + u8 descriptor; + u16 length; + u8 space_id; + u8 bit_width; + u8 bit_offset; + u8 access_width; + u64 __iomem address; +} __packed; + +/* + * Each entry in the CPC table is either + * of type ACPI_TYPE_BUFFER or + * ACPI_TYPE_INTEGER. + */ +struct cpc_register_resource { + acpi_object_type type; + union { + struct cpc_reg reg; + u64 int_value; + } cpc_entry; +}; + +/* Container to hold the CPC details for each CPU */ +struct cpc_desc { + int num_entries; + int version; + int cpu_id; + struct cpc_register_resource cpc_regs[MAX_CPC_REG_ENT]; + struct acpi_psd_package domain_info; +}; + +/* These are indexes into the per-cpu cpc_regs[]. Order is important. */ +enum cppc_regs { + HIGHEST_PERF, + NOMINAL_PERF, + LOW_NON_LINEAR_PERF, + LOWEST_PERF, + GUARANTEED_PERF, + DESIRED_PERF, + MIN_PERF, + MAX_PERF, + PERF_REDUC_TOLERANCE, + TIME_WINDOW, + CTR_WRAP_TIME, + REFERENCE_CTR, + DELIVERED_CTR, + PERF_LIMITED, + ENABLE, + AUTO_SEL_ENABLE, + AUTO_ACT_WINDOW, + ENERGY_PERF, + REFERENCE_PERF, +}; + +/* + * Categorization of registers as described + * in the ACPI v.5.1 spec. + * XXX: Only filling up ones which are used by governors + * today. + */ +struct cppc_perf_caps { + u32 highest_perf; + u32 nominal_perf; + u32 reference_perf; + u32 lowest_perf; +}; + +struct cppc_perf_ctrls { + u32 max_perf; + u32 min_perf; + u32 desired_perf; +}; + +struct cppc_perf_fb_ctrs { + u64 reference; + u64 prev_reference; + u64 delivered; + u64 prev_delivered; +}; + +/* Per CPU container for runtime CPPC management. */ +struct cpudata { + int cpu; + struct cppc_perf_caps perf_caps; + struct cppc_perf_ctrls perf_ctrls; + struct cppc_perf_fb_ctrs perf_fb_ctrs; + struct cpufreq_policy *cur_policy; + unsigned int shared_type; + cpumask_var_t shared_cpu_map; +}; + +extern int cppc_get_perf_ctrs(int cpu, struct cppc_perf_fb_ctrs *perf_fb_ctrs); +extern int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls); +extern int cppc_get_perf_caps(int cpu, struct cppc_perf_caps *caps); +extern int acpi_get_psd_map(struct cpudata **); + +/* Methods to interact with the PCC mailbox controller. */ +extern struct mbox_chan * + pcc_mbox_request_channel(struct mbox_client *, unsigned int); +extern int mbox_send_message(struct mbox_chan *chan, void *mssg); + +#endif /* _CPPC_ACPI_H*/ diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h index ec00e2bb029e..056f245ad038 100644 --- a/include/acpi/platform/acenv.h +++ b/include/acpi/platform/acenv.h @@ -142,7 +142,7 @@ #ifdef ACPI_LIBRARY #define ACPI_USE_LOCAL_CACHE -#define ACPI_FUTURE_USAGE +#define ACPI_FULL_DEBUG #endif /* Common for all ACPICA applications */ @@ -304,11 +304,11 @@ * multi-threaded if ACPI_APPLICATION is not set. */ #ifndef DEBUGGER_THREADING -#ifdef ACPI_APPLICATION -#define DEBUGGER_THREADING DEBUGGER_SINGLE_THREADED +#if !defined (ACPI_APPLICATION) || defined (ACPI_EXEC_APP) +#define DEBUGGER_THREADING DEBUGGER_MULTI_THREADED #else -#define DEBUGGER_THREADING DEBUGGER_MULTI_THREADED +#define DEBUGGER_THREADING DEBUGGER_SINGLE_THREADED #endif #endif /* !DEBUGGER_THREADING */ diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 74ba46c8157a..323e5daece54 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -63,12 +63,16 @@ #define ACPI_USE_SYSTEM_INTTYPES -/* Compile for reduced hardware mode only with this kernel config */ +/* Kernel specific ACPICA configuration */ #ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY #define ACPI_REDUCED_HARDWARE 1 #endif +#ifdef CONFIG_ACPI_DEBUGGER +#define ACPI_DEBUGGER +#endif + #include <linux/string.h> #include <linux/kernel.h> #include <linux/ctype.h> @@ -151,7 +155,6 @@ * OSL interfaces used by utilities */ #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output -#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address diff --git a/include/acpi/platform/aclinuxex.h b/include/acpi/platform/aclinuxex.h index acedc3f026de..fd6d70fe1219 100644 --- a/include/acpi/platform/aclinuxex.h +++ b/include/acpi/platform/aclinuxex.h @@ -124,6 +124,11 @@ static inline acpi_thread_id acpi_os_get_thread_id(void) lock ? AE_OK : AE_NO_MEMORY; \ }) +static inline u8 acpi_os_readable(void *pointer, acpi_size length) +{ + return TRUE; +} + /* * OSL interfaces added by Linux */ diff --git a/include/acpi/processor.h b/include/acpi/processor.h index ff5f135f16b1..07fb100bcc68 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -311,6 +311,20 @@ phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id); int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id); int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); +#ifdef CONFIG_ACPI_CPPC_LIB +extern int acpi_cppc_processor_probe(struct acpi_processor *pr); +extern void acpi_cppc_processor_exit(struct acpi_processor *pr); +#else +static inline int acpi_cppc_processor_probe(struct acpi_processor *pr) +{ + return 0; +} +static inline void acpi_cppc_processor_exit(struct acpi_processor *pr) +{ + return; +} +#endif /* CONFIG_ACPI_CPPC_LIB */ + /* in processor_pdc.c */ void acpi_processor_set_pdc(acpi_handle handle); diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 1781e54ea6d3..c4bd0e2c173c 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -181,6 +181,16 @@ #define CPUIDLE_METHOD_OF_TABLES() OF_TABLE(CONFIG_CPU_IDLE, cpuidle_method) #define EARLYCON_OF_TABLES() OF_TABLE(CONFIG_SERIAL_EARLYCON, earlycon) +#ifdef CONFIG_ACPI +#define ACPI_PROBE_TABLE(name) \ + . = ALIGN(8); \ + VMLINUX_SYMBOL(__##name##_acpi_probe_table) = .; \ + *(__##name##_acpi_probe_table) \ + VMLINUX_SYMBOL(__##name##_acpi_probe_table_end) = .; +#else +#define ACPI_PROBE_TABLE(name) +#endif + #define KERNEL_DTB() \ STRUCT_ALIGN(); \ VMLINUX_SYMBOL(__dtb_start) = .; \ @@ -514,6 +524,8 @@ CPUIDLE_METHOD_OF_TABLES() \ KERNEL_DTB() \ IRQCHIP_OF_MATCH_TABLE() \ + ACPI_PROBE_TABLE(irqchip) \ + ACPI_PROBE_TABLE(clksrc) \ EARLYCON_TABLE() \ EARLYCON_OF_TABLES() diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 43856d19cf4d..82f56bb0214c 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -49,7 +49,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev) return adev ? adev->handle : NULL; } -#define ACPI_COMPANION(dev) to_acpi_node((dev)->fwnode) +#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode) #define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \ acpi_fwnode_handle(adev) : NULL) #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) @@ -69,7 +69,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev) static inline bool has_acpi_companion(struct device *dev) { - return is_acpi_node(dev->fwnode); + return is_acpi_device_node(dev->fwnode); } static inline void acpi_preset_companion(struct device *dev, @@ -131,6 +131,12 @@ static inline void acpi_initrd_override(void *data, size_t size) (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ ((struct acpi_subtable_header *)entry)->length < sizeof(*entry)) +struct acpi_subtable_proc { + int id; + acpi_tbl_entry_handler handler; + int count; +}; + char * __acpi_map_table (unsigned long phys_addr, unsigned long size); void __acpi_unmap_table(char *map, unsigned long size); int early_acpi_boot_init(void); @@ -146,9 +152,16 @@ int __init acpi_parse_entries(char *id, unsigned long table_size, struct acpi_table_header *table_header, int entry_id, unsigned int max_entries); int __init acpi_table_parse_entries(char *id, unsigned long table_size, - int entry_id, - acpi_tbl_entry_handler handler, - unsigned int max_entries); + int entry_id, + acpi_tbl_entry_handler handler, + unsigned int max_entries); +int __init acpi_table_parse_entries(char *id, unsigned long table_size, + int entry_id, + acpi_tbl_entry_handler handler, + unsigned int max_entries); +int __init acpi_table_parse_entries_array(char *id, unsigned long table_size, + struct acpi_subtable_proc *proc, int proc_num, + unsigned int max_entries); int acpi_table_parse_madt(enum acpi_madt_type id, acpi_tbl_entry_handler handler, unsigned int max_entries); @@ -193,6 +206,12 @@ int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base); void acpi_irq_stats_init(void); extern u32 acpi_irq_handled; extern u32 acpi_irq_not_handled; +extern unsigned int acpi_sci_irq; +#define INVALID_ACPI_IRQ ((unsigned)-1) +static inline bool acpi_sci_irq_valid(void) +{ + return acpi_sci_irq != INVALID_ACPI_IRQ; +} extern int sbf_port; extern unsigned long acpi_realmode_flags; @@ -462,7 +481,22 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode) return false; } -static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode) +static inline bool is_acpi_device_node(struct fwnode_handle *fwnode) +{ + return false; +} + +static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode) +{ + return NULL; +} + +static inline bool is_acpi_data_node(struct fwnode_handle *fwnode) +{ + return false; +} + +static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode) { return NULL; } @@ -744,22 +778,76 @@ struct acpi_reference_args { #ifdef CONFIG_ACPI int acpi_dev_get_property(struct acpi_device *adev, const char *name, acpi_object_type type, const union acpi_object **obj); -int acpi_dev_get_property_array(struct acpi_device *adev, const char *name, - acpi_object_type type, - const union acpi_object **obj); -int acpi_dev_get_property_reference(struct acpi_device *adev, - const char *name, size_t index, - struct acpi_reference_args *args); - -int acpi_dev_prop_get(struct acpi_device *adev, const char *propname, - void **valptr); +int acpi_node_get_property_reference(struct fwnode_handle *fwnode, + const char *name, size_t index, + struct acpi_reference_args *args); + +int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname, + void **valptr); int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname, enum dev_prop_type proptype, void *val); +int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname, + enum dev_prop_type proptype, void *val, size_t nval); int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, enum dev_prop_type proptype, void *val, size_t nval); -struct acpi_device *acpi_get_next_child(struct device *dev, - struct acpi_device *child); +struct fwnode_handle *acpi_get_next_subnode(struct device *dev, + struct fwnode_handle *subnode); + +struct acpi_probe_entry; +typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, + struct acpi_probe_entry *); + +#define ACPI_TABLE_ID_LEN 5 + +/** + * struct acpi_probe_entry - boot-time probing entry + * @id: ACPI table name + * @type: Optional subtable type to match + * (if @id contains subtables) + * @subtable_valid: Optional callback to check the validity of + * the subtable + * @probe_table: Callback to the driver being probed when table + * match is successful + * @probe_subtbl: Callback to the driver being probed when table and + * subtable match (and optional callback is successful) + * @driver_data: Sideband data provided back to the driver + */ +struct acpi_probe_entry { + __u8 id[ACPI_TABLE_ID_LEN]; + __u8 type; + acpi_probe_entry_validate_subtbl subtable_valid; + union { + acpi_tbl_table_handler probe_table; + acpi_tbl_entry_handler probe_subtbl; + }; + kernel_ulong_t driver_data; +}; + +#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \ + static const struct acpi_probe_entry __acpi_probe_##name \ + __used __section(__##table##_acpi_probe_table) \ + = { \ + .id = table_id, \ + .type = subtable, \ + .subtable_valid = valid, \ + .probe_table = (acpi_tbl_table_handler)fn, \ + .driver_data = data, \ + } + +#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table +#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end + +int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr); + +#define acpi_probe_device_table(t) \ + ({ \ + extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \ + ACPI_PROBE_TABLE_END(t); \ + __acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \ + (&ACPI_PROBE_TABLE_END(t) - \ + &ACPI_PROBE_TABLE(t))); \ + }) #else static inline int acpi_dev_get_property(struct acpi_device *adev, const char *name, acpi_object_type type, @@ -767,16 +855,17 @@ static inline int acpi_dev_get_property(struct acpi_device *adev, { return -ENXIO; } -static inline int acpi_dev_get_property_array(struct acpi_device *adev, - const char *name, - acpi_object_type type, - const union acpi_object **obj) + +static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode, + const char *name, const char *cells_name, + size_t index, struct acpi_reference_args *args) { return -ENXIO; } -static inline int acpi_dev_get_property_reference(struct acpi_device *adev, - const char *name, const char *cells_name, - size_t index, struct acpi_reference_args *args) + +static inline int acpi_node_prop_get(struct fwnode_handle *fwnode, + const char *propname, + void **valptr) { return -ENXIO; } @@ -796,6 +885,14 @@ static inline int acpi_dev_prop_read_single(struct acpi_device *adev, return -ENXIO; } +static inline int acpi_node_prop_read(struct fwnode_handle *fwnode, + const char *propname, + enum dev_prop_type proptype, + void *val, size_t nval) +{ + return -ENXIO; +} + static inline int acpi_dev_prop_read(struct acpi_device *adev, const char *propname, enum dev_prop_type proptype, @@ -804,12 +901,22 @@ static inline int acpi_dev_prop_read(struct acpi_device *adev, return -ENXIO; } -static inline struct acpi_device *acpi_get_next_child(struct device *dev, - struct acpi_device *child) +static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev, + struct fwnode_handle *subnode) { return NULL; } +#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \ + static const void * __acpi_table_##name[] \ + __attribute__((unused)) \ + = { (void *) table_id, \ + (void *) subtable, \ + (void *) valid, \ + (void *) fn, \ + (void *) data } + +#define acpi_probe_device_table(t) ({ int __r = 0; __r;}) #endif #endif /*_LINUX_ACPI_H*/ diff --git a/include/linux/acpi_irq.h b/include/linux/acpi_irq.h deleted file mode 100644 index f10c87265855..000000000000 --- a/include/linux/acpi_irq.h +++ /dev/null @@ -1,10 +0,0 @@ -#ifndef _LINUX_ACPI_IRQ_H -#define _LINUX_ACPI_IRQ_H - -#include <linux/irq.h> - -#ifndef acpi_irq_init -static inline void acpi_irq_init(void) { } -#endif - -#endif /* _LINUX_ACPI_IRQ_H */ diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h index 278dd279a7a8..7784b597e959 100644 --- a/include/linux/clocksource.h +++ b/include/linux/clocksource.h @@ -246,16 +246,13 @@ extern int clocksource_i8253_init(void); #define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \ OF_DECLARE_1(clksrc, name, compat, fn) -#ifdef CONFIG_CLKSRC_OF -extern void clocksource_of_init(void); +#ifdef CONFIG_CLKSRC_PROBE +extern void clocksource_probe(void); #else -static inline void clocksource_of_init(void) {} +static inline void clocksource_probe(void) {} #endif -#ifdef CONFIG_ACPI -void acpi_generic_timer_init(void); -#else -static inline void acpi_generic_timer_init(void) { } -#endif +#define CLOCKSOURCE_ACPI_DECLARE(name, table_id, fn) \ + ACPI_DECLARE_PROBE_ENTRY(clksrc, name, table_id, 0, NULL, 0, fn) #endif /* _LINUX_CLOCKSOURCE_H */ diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index dca22de98d94..ef4c5b1a860f 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -65,7 +65,6 @@ struct cpufreq_policy { unsigned int shared_type; /* ACPI: ANY or ALL affected CPUs should set cpufreq */ unsigned int cpu; /* cpu managing this policy, must be online */ - unsigned int kobj_cpu; /* cpu managing sysfs files, can be offline */ struct clk *clk; struct cpufreq_cpuinfo cpuinfo;/* see above */ @@ -149,10 +148,6 @@ static inline bool policy_is_shared(struct cpufreq_policy *policy) /* /sys/devices/system/cpu/cpufreq: entry point for global variables */ extern struct kobject *cpufreq_global_kobject; -int cpufreq_get_global_kobject(void); -void cpufreq_put_global_kobject(void); -int cpufreq_sysfs_create_file(const struct attribute *attr); -void cpufreq_sysfs_remove_file(const struct attribute *attr); #ifdef CONFIG_CPU_FREQ unsigned int cpufreq_get(unsigned int cpu); diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 0408545bce42..b08d6ba5c1e6 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -16,6 +16,7 @@ enum fwnode_type { FWNODE_INVALID = 0, FWNODE_OF, FWNODE_ACPI, + FWNODE_ACPI_DATA, FWNODE_PDATA, }; diff --git a/include/linux/ioport.h b/include/linux/ioport.h index 388e3ae94f7a..24bea087e7af 100644 --- a/include/linux/ioport.h +++ b/include/linux/ioport.h @@ -94,6 +94,7 @@ struct resource { /* PnP I/O specific bits (IORESOURCE_BITS) */ #define IORESOURCE_IO_16BIT_ADDR (1<<0) #define IORESOURCE_IO_FIXED (1<<1) +#define IORESOURCE_IO_SPARSE (1<<2) /* PCI ROM control bits (IORESOURCE_BITS) */ #define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */ diff --git a/include/linux/irqchip.h b/include/linux/irqchip.h index 638887376e58..89c34b200671 100644 --- a/include/linux/irqchip.h +++ b/include/linux/irqchip.h @@ -11,6 +11,7 @@ #ifndef _LINUX_IRQCHIP_H #define _LINUX_IRQCHIP_H +#include <linux/acpi.h> #include <linux/of.h> /* @@ -25,6 +26,22 @@ */ #define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn) +/* + * This macro must be used by the different irqchip drivers to declare + * the association between their version and their initialization function. + * + * @name: name that must be unique accross all IRQCHIP_ACPI_DECLARE of the + * same file. + * @subtable: Subtable to be identified in MADT + * @validate: Function to be called on that subtable to check its validity. + * Can be NULL. + * @data: data to be checked by the validate function. + * @fn: initialization function + */ +#define IRQCHIP_ACPI_DECLARE(name, subtable, validate, data, fn) \ + ACPI_DECLARE_PROBE_ENTRY(irqchip, name, ACPI_SIG_MADT, \ + subtable, validate, data, fn) + #ifdef CONFIG_IRQCHIP void irqchip_init(void); #else diff --git a/include/linux/irqchip/arm-gic-acpi.h b/include/linux/irqchip/arm-gic-acpi.h deleted file mode 100644 index de3419ed3937..000000000000 --- a/include/linux/irqchip/arm-gic-acpi.h +++ /dev/null @@ -1,31 +0,0 @@ -/* - * Copyright (C) 2014, Linaro Ltd. - * Author: Tomasz Nowicki <tomasz.nowicki@linaro.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef ARM_GIC_ACPI_H_ -#define ARM_GIC_ACPI_H_ - -#ifdef CONFIG_ACPI - -/* - * Hard code here, we can not get memory size from MADT (but FDT does), - * Actually no need to do that, because this size can be inferred - * from GIC spec. - */ -#define ACPI_GICV2_DIST_MEM_SIZE (SZ_4K) -#define ACPI_GIC_CPU_IF_MEM_SIZE (SZ_8K) - -struct acpi_table_header; - -int gic_v2_acpi_init(struct acpi_table_header *table); -void acpi_gic_init(void); -#else -static inline void acpi_gic_init(void) { } -#endif - -#endif /* ARM_GIC_ACPI_H_ */ diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h index a965efa52152..89ab0572dbc6 100644 --- a/include/linux/pci-acpi.h +++ b/include/linux/pci-acpi.h @@ -52,6 +52,30 @@ static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus) return ACPI_HANDLE(dev); } +struct acpi_pci_root; +struct acpi_pci_root_ops; + +struct acpi_pci_root_info { + struct acpi_pci_root *root; + struct acpi_device *bridge; + struct acpi_pci_root_ops *ops; + struct list_head resources; + char name[16]; +}; + +struct acpi_pci_root_ops { + struct pci_ops *pci_ops; + int (*init_info)(struct acpi_pci_root_info *info); + void (*release_info)(struct acpi_pci_root_info *info); + int (*prepare_resources)(struct acpi_pci_root_info *info); +}; + +extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info); +extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, + struct acpi_pci_root_ops *ops, + struct acpi_pci_root_info *info, + void *sd); + void acpi_pci_add_bus(struct pci_bus *bus); void acpi_pci_remove_bus(struct pci_bus *bus); diff --git a/include/linux/pm.h b/include/linux/pm.h index 35d599e7250d..528be6787796 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -732,6 +732,7 @@ extern int pm_generic_poweroff_noirq(struct device *dev); extern int pm_generic_poweroff_late(struct device *dev); extern int pm_generic_poweroff(struct device *dev); extern void pm_generic_complete(struct device *dev); +extern void pm_complete_with_resume_check(struct device *dev); #else /* !CONFIG_PM_SLEEP */ diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index b1cf7e797892..ba4ced38efae 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -15,7 +15,6 @@ #include <linux/err.h> #include <linux/of.h> #include <linux/notifier.h> -#include <linux/cpuidle.h> /* Defines used for the flags field in the struct generic_pm_domain */ #define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */ @@ -38,11 +37,6 @@ struct gpd_dev_ops { bool (*active_wakeup)(struct device *dev); }; -struct gpd_cpuidle_data { - unsigned int saved_exit_latency; - struct cpuidle_state *idle_state; -}; - struct generic_pm_domain { struct dev_pm_domain domain; /* PM domain operations */ struct list_head gpd_list_node; /* Node in the global PM domains list */ @@ -53,7 +47,6 @@ struct generic_pm_domain { struct dev_power_governor *gov; struct work_struct power_off_work; const char *name; - unsigned int in_progress; /* Number of devices being suspended now */ atomic_t sd_count; /* Number of subdomains with power "on" */ enum gpd_status status; /* Current state of the domain */ unsigned int device_count; /* Number of devices */ @@ -68,7 +61,6 @@ struct generic_pm_domain { s64 max_off_time_ns; /* Maximum allowed "suspended" time. */ bool max_off_time_changed; bool cached_power_down_ok; - struct gpd_cpuidle_data *cpuidle_data; int (*attach_dev)(struct generic_pm_domain *domain, struct device *dev); void (*detach_dev)(struct generic_pm_domain *domain, @@ -89,10 +81,8 @@ struct gpd_link { }; struct gpd_timing_data { - s64 stop_latency_ns; - s64 start_latency_ns; - s64 save_state_latency_ns; - s64 restore_state_latency_ns; + s64 suspend_latency_ns; + s64 resume_latency_ns; s64 effective_constraint_ns; bool constraint_changed; bool cached_stop_ok; @@ -125,29 +115,15 @@ extern int __pm_genpd_add_device(struct generic_pm_domain *genpd, struct device *dev, struct gpd_timing_data *td); -extern int __pm_genpd_name_add_device(const char *domain_name, - struct device *dev, - struct gpd_timing_data *td); - extern int pm_genpd_remove_device(struct generic_pm_domain *genpd, struct device *dev); extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *new_subdomain); -extern int pm_genpd_add_subdomain_names(const char *master_name, - const char *subdomain_name); extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target); -extern int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state); -extern int pm_genpd_name_attach_cpuidle(const char *name, int state); -extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd); -extern int pm_genpd_name_detach_cpuidle(const char *name); extern void pm_genpd_init(struct generic_pm_domain *genpd, struct dev_power_governor *gov, bool is_off); -extern int pm_genpd_poweron(struct generic_pm_domain *genpd); -extern int pm_genpd_name_poweron(const char *domain_name); -extern void pm_genpd_poweroff_unused(void); - extern struct dev_power_governor simple_qos_governor; extern struct dev_power_governor pm_domain_always_on_gov; #else @@ -166,12 +142,6 @@ static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd, { return -ENOSYS; } -static inline int __pm_genpd_name_add_device(const char *domain_name, - struct device *dev, - struct gpd_timing_data *td) -{ - return -ENOSYS; -} static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd, struct device *dev) { @@ -182,45 +152,15 @@ static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd, { return -ENOSYS; } -static inline int pm_genpd_add_subdomain_names(const char *master_name, - const char *subdomain_name) -{ - return -ENOSYS; -} static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd, struct generic_pm_domain *target) { return -ENOSYS; } -static inline int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st) -{ - return -ENOSYS; -} -static inline int pm_genpd_name_attach_cpuidle(const char *name, int state) -{ - return -ENOSYS; -} -static inline int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd) -{ - return -ENOSYS; -} -static inline int pm_genpd_name_detach_cpuidle(const char *name) -{ - return -ENOSYS; -} static inline void pm_genpd_init(struct generic_pm_domain *genpd, struct dev_power_governor *gov, bool is_off) { } -static inline int pm_genpd_poweron(struct generic_pm_domain *genpd) -{ - return -ENOSYS; -} -static inline int pm_genpd_name_poweron(const char *domain_name) -{ - return -ENOSYS; -} -static inline void pm_genpd_poweroff_unused(void) {} #endif static inline int pm_genpd_add_device(struct generic_pm_domain *genpd, @@ -229,12 +169,6 @@ static inline int pm_genpd_add_device(struct generic_pm_domain *genpd, return __pm_genpd_add_device(genpd, dev, NULL); } -static inline int pm_genpd_name_add_device(const char *domain_name, - struct device *dev) -{ - return __pm_genpd_name_add_device(domain_name, dev, NULL); -} - #ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP extern void pm_genpd_syscore_poweroff(struct device *dev); extern void pm_genpd_syscore_poweron(struct device *dev); diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h index e817722ee3f0..9a2e50337af9 100644 --- a/include/linux/pm_opp.h +++ b/include/linux/pm_opp.h @@ -132,37 +132,37 @@ static inline struct srcu_notifier_head *dev_pm_opp_get_notifier( #endif /* CONFIG_PM_OPP */ #if defined(CONFIG_PM_OPP) && defined(CONFIG_OF) -int of_init_opp_table(struct device *dev); -void of_free_opp_table(struct device *dev); -int of_cpumask_init_opp_table(cpumask_var_t cpumask); -void of_cpumask_free_opp_table(cpumask_var_t cpumask); -int of_get_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask); -int set_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask); +int dev_pm_opp_of_add_table(struct device *dev); +void dev_pm_opp_of_remove_table(struct device *dev); +int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask); +void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask); +int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); +int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask); #else -static inline int of_init_opp_table(struct device *dev) +static inline int dev_pm_opp_of_add_table(struct device *dev) { return -EINVAL; } -static inline void of_free_opp_table(struct device *dev) +static inline void dev_pm_opp_of_remove_table(struct device *dev) { } -static inline int of_cpumask_init_opp_table(cpumask_var_t cpumask) +static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask) { return -ENOSYS; } -static inline void of_cpumask_free_opp_table(cpumask_var_t cpumask) +static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask) { } -static inline int of_get_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask) +static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) { return -ENOSYS; } -static inline int set_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask) +static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask) { return -ENOSYS; } diff --git a/include/linux/property.h b/include/linux/property.h index a59c6ee566c2..463de52fe891 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -40,6 +40,8 @@ int device_property_read_string_array(struct device *dev, const char *propname, const char **val, size_t nval); int device_property_read_string(struct device *dev, const char *propname, const char **val); +int device_property_match_string(struct device *dev, + const char *propname, const char *string); bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname); int fwnode_property_read_u8_array(struct fwnode_handle *fwnode, @@ -59,6 +61,8 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode, size_t nval); int fwnode_property_read_string(struct fwnode_handle *fwnode, const char *propname, const char **val); +int fwnode_property_match_string(struct fwnode_handle *fwnode, + const char *propname, const char *string); struct fwnode_handle *device_get_next_child_node(struct device *dev, struct fwnode_handle *child); diff --git a/include/linux/suspend.h b/include/linux/suspend.h index 5efe743ce1e8..8b6ec7ef0854 100644 --- a/include/linux/suspend.h +++ b/include/linux/suspend.h @@ -202,6 +202,36 @@ struct platform_freeze_ops { extern void suspend_set_ops(const struct platform_suspend_ops *ops); extern int suspend_valid_only_mem(suspend_state_t state); +extern unsigned int pm_suspend_global_flags; + +#define PM_SUSPEND_FLAG_FW_SUSPEND (1 << 0) +#define PM_SUSPEND_FLAG_FW_RESUME (1 << 1) + +static inline void pm_suspend_clear_flags(void) +{ + pm_suspend_global_flags = 0; +} + +static inline void pm_set_suspend_via_firmware(void) +{ + pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_SUSPEND; +} + +static inline void pm_set_resume_via_firmware(void) +{ + pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_RESUME; +} + +static inline bool pm_suspend_via_firmware(void) +{ + return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_SUSPEND); +} + +static inline bool pm_resume_via_firmware(void) +{ + return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_RESUME); +} + /* Suspend-to-idle state machnine. */ enum freeze_state { FREEZE_STATE_NONE, /* Not suspended/suspending. */ @@ -241,6 +271,12 @@ extern int pm_suspend(suspend_state_t state); #else /* !CONFIG_SUSPEND */ #define suspend_valid_only_mem NULL +static inline void pm_suspend_clear_flags(void) {} +static inline void pm_set_suspend_via_firmware(void) {} +static inline void pm_set_resume_via_firmware(void) {} +static inline bool pm_suspend_via_firmware(void) { return false; } +static inline bool pm_resume_via_firmware(void) { return false; } + static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {} static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; } static inline bool idle_should_freeze(void) { return false; } @@ -387,10 +423,12 @@ extern int unregister_pm_notifier(struct notifier_block *nb); /* drivers/base/power/wakeup.c */ extern bool events_check_enabled; +extern unsigned int pm_wakeup_irq; extern bool pm_wakeup_pending(void); extern void pm_system_wakeup(void); extern void pm_wakeup_clear(void); +extern void pm_system_irq_wakeup(unsigned int irq_number); extern bool pm_get_wakeup_count(unsigned int *count, bool block); extern bool pm_save_wakeup_count(unsigned int count); extern void pm_wakep_autosleep_enabled(bool set); @@ -440,6 +478,7 @@ static inline int unregister_pm_notifier(struct notifier_block *nb) static inline bool pm_wakeup_pending(void) { return false; } static inline void pm_system_wakeup(void) {} static inline void pm_wakeup_clear(void) {} +static inline void pm_system_irq_wakeup(unsigned int irq_number) {} static inline void lock_system_sleep(void) {} static inline void unlock_system_sleep(void) {} diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c index 21c62617a35a..e80c4400118a 100644 --- a/kernel/irq/pm.c +++ b/kernel/irq/pm.c @@ -21,7 +21,7 @@ bool irq_pm_check_wakeup(struct irq_desc *desc) desc->istate |= IRQS_SUSPENDED | IRQS_PENDING; desc->depth++; irq_disable(desc); - pm_system_wakeup(); + pm_system_irq_wakeup(irq_desc_get_irq(desc)); return true; } return false; diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 690f78f210f2..b7342a24f559 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -733,7 +733,7 @@ int hibernate(void) * contents of memory is restored from the saved image. * * If this is successful, control reappears in the restored target kernel in - * hibernation_snaphot() which returns to hibernate(). Otherwise, the routine + * hibernation_snapshot() which returns to hibernate(). Otherwise, the routine * attempts to recover gracefully and make the kernel return to the normal mode * of operation. */ diff --git a/kernel/power/main.c b/kernel/power/main.c index 63d395b5df93..b2dd4d999900 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -272,6 +272,22 @@ static inline void pm_print_times_init(void) { pm_print_times_enabled = !!initcall_debug; } + +static ssize_t pm_wakeup_irq_show(struct kobject *kobj, + struct kobj_attribute *attr, + char *buf) +{ + return pm_wakeup_irq ? sprintf(buf, "%u\n", pm_wakeup_irq) : -ENODATA; +} + +static ssize_t pm_wakeup_irq_store(struct kobject *kobj, + struct kobj_attribute *attr, + const char *buf, size_t n) +{ + return -EINVAL; +} +power_attr(pm_wakeup_irq); + #else /* !CONFIG_PM_SLEEP_DEBUG */ static inline void pm_print_times_init(void) {} #endif /* CONFIG_PM_SLEEP_DEBUG */ @@ -604,6 +620,7 @@ static struct attribute * g[] = { #endif #ifdef CONFIG_PM_SLEEP_DEBUG &pm_print_times_attr.attr, + &pm_wakeup_irq_attr.attr, #endif #endif #ifdef CONFIG_FREEZER diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 7e4cda4a8dd9..f9fe133c13e2 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -35,6 +35,9 @@ const char *pm_labels[] = { "mem", "standby", "freeze", NULL }; const char *pm_states[PM_SUSPEND_MAX]; +unsigned int pm_suspend_global_flags; +EXPORT_SYMBOL_GPL(pm_suspend_global_flags); + static const struct platform_suspend_ops *suspend_ops; static const struct platform_freeze_ops *freeze_ops; static DECLARE_WAIT_QUEUE_HEAD(suspend_freeze_wait_head); @@ -493,6 +496,7 @@ static int enter_state(suspend_state_t state) #endif pr_debug("PM: Preparing system for sleep (%s)\n", pm_states[state]); + pm_suspend_clear_flags(); error = suspend_prepare(state); if (error) goto Unlock; diff --git a/tools/power/acpi/tools/acpidump/apfiles.c b/tools/power/acpi/tools/acpidump/apfiles.c index a37f9702b2a9..a1c62de42a3b 100644 --- a/tools/power/acpi/tools/acpidump/apfiles.c +++ b/tools/power/acpi/tools/acpidump/apfiles.c @@ -150,7 +150,7 @@ int ap_write_to_binary_file(struct acpi_table_header *table, u32 instance) strcat(filename, instance_str); } - strcat(filename, ACPI_TABLE_FILE_SUFFIX); + strcat(filename, FILE_SUFFIX_BINARY_TABLE); if (gbl_verbose_mode) { acpi_log_error |
