diff options
Diffstat (limited to 'arch')
185 files changed, 1310 insertions, 930 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index ed27fd262627..e1e540ffa979 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -429,6 +429,13 @@ config SECCOMP_FILTER See Documentation/userspace-api/seccomp_filter.rst for details. +config HAVE_ARCH_STACKLEAK + bool + help + An architecture should select this if it has the code which + fills the used part of the kernel stack with the STACKLEAK_POISON + value before returning from system calls. + config HAVE_STACKPROTECTOR bool help diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h index 6a8c53dec57e..b7c77bb1bfd2 100644 --- a/arch/alpha/include/asm/termios.h +++ b/arch/alpha/include/asm/termios.h @@ -73,9 +73,15 @@ }) #define user_termios_to_kernel_termios(k, u) \ - copy_from_user(k, u, sizeof(struct termios)) + copy_from_user(k, u, sizeof(struct termios2)) #define kernel_termios_to_user_termios(u, k) \ + copy_to_user(u, k, sizeof(struct termios2)) + +#define user_termios_to_kernel_termios_1(k, u) \ + copy_from_user(k, u, sizeof(struct termios)) + +#define kernel_termios_to_user_termios_1(u, k) \ copy_to_user(u, k, sizeof(struct termios)) #endif /* _ALPHA_TERMIOS_H */ diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h index 1e9121c9b3c7..971311605288 100644 --- a/arch/alpha/include/uapi/asm/ioctls.h +++ b/arch/alpha/include/uapi/asm/ioctls.h @@ -32,6 +32,11 @@ #define TCXONC _IO('t', 30) #define TCFLSH _IO('t', 31) +#define TCGETS2 _IOR('T', 42, struct termios2) +#define TCSETS2 _IOW('T', 43, struct termios2) +#define TCSETSW2 _IOW('T', 44, struct termios2) +#define TCSETSF2 _IOW('T', 45, struct termios2) + #define TIOCSWINSZ _IOW('t', 103, struct winsize) #define TIOCGWINSZ _IOR('t', 104, struct winsize) #define TIOCSTART _IO('t', 110) /* start output, like ^Q */ diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h index de6c8360fbe3..4575ba34a0ea 100644 --- a/arch/alpha/include/uapi/asm/termbits.h +++ b/arch/alpha/include/uapi/asm/termbits.h @@ -26,6 +26,19 @@ struct termios { speed_t c_ospeed; /* output speed */ }; +/* Alpha has identical termios and termios2 */ + +struct termios2 { + tcflag_t c_iflag; /* input mode flags */ + tcflag_t c_oflag; /* output mode flags */ + tcflag_t c_cflag; /* control mode flags */ + tcflag_t c_lflag; /* local mode flags */ + cc_t c_cc[NCCS]; /* control characters */ + cc_t c_line; /* line discipline (== c_cc[19]) */ + speed_t c_ispeed; /* input speed */ + speed_t c_ospeed; /* output speed */ +}; + /* Alpha has matching termios and ktermios */ struct ktermios { @@ -152,6 +165,7 @@ struct ktermios { #define B3000000 00034 #define B3500000 00035 #define B4000000 00036 +#define BOTHER 00037 #define CSIZE 00001400 #define CS5 00000000 @@ -169,6 +183,9 @@ struct ktermios { #define CMSPAR 010000000000 /* mark or space (stick) parity */ #define CRTSCTS 020000000000 /* flow control */ +#define CIBAUD 07600000 +#define IBSHIFT 16 + /* c_lflag bits */ #define ISIG 0x00000080 #define ICANON 0x00000100 diff --git a/arch/arm/boot/dts/imx53-ppd.dts b/arch/arm/boot/dts/imx53-ppd.dts index b560ff88459b..5ff9a179c83c 100644 --- a/arch/arm/boot/dts/imx53-ppd.dts +++ b/arch/arm/boot/dts/imx53-ppd.dts @@ -55,7 +55,7 @@ }; chosen { - stdout-path = "&uart1:115200n8"; + stdout-path = "serial0:115200n8"; }; memory@70000000 { diff --git a/arch/arm/boot/dts/imx6sll.dtsi b/arch/arm/boot/dts/imx6sll.dtsi index ed9a980bce85..beefa1b2049d 100644 --- a/arch/arm/boot/dts/imx6sll.dtsi +++ b/arch/arm/boot/dts/imx6sll.dtsi @@ -740,7 +740,7 @@ i2c1: i2c@21a0000 { #address-cells = <1>; #size-cells = <0>; - compatible = "fs,imx6sll-i2c", "fsl,imx21-i2c"; + compatible = "fsl,imx6sll-i2c", "fsl,imx21-i2c"; reg = <0x021a0000 0x4000>; interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>; clocks = <&clks IMX6SLL_CLK_I2C1>; diff --git a/arch/arm/boot/dts/imx6sx-sdb.dtsi b/arch/arm/boot/dts/imx6sx-sdb.dtsi index 53b3408b5fab..7d7d679945d2 100644 --- a/arch/arm/boot/dts/imx6sx-sdb.dtsi +++ b/arch/arm/boot/dts/imx6sx-sdb.dtsi @@ -117,7 +117,9 @@ regulator-name = "enet_3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; - gpios = <&gpio2 6 GPIO_ACTIVE_LOW>; + gpio = <&gpio2 6 GPIO_ACTIVE_LOW>; + regulator-boot-on; + regulator-always-on; }; reg_pcie_gpio: regulator-pcie-gpio { @@ -180,6 +182,7 @@ phy-supply = <®_enet_3v3>; phy-mode = "rgmii"; phy-handle = <ðphy1>; + phy-reset-gpios = <&gpio2 7 GPIO_ACTIVE_LOW>; status = "okay"; mdio { @@ -373,6 +376,8 @@ MX6SX_PAD_RGMII1_RD3__ENET1_RX_DATA_3 0x3081 MX6SX_PAD_RGMII1_RX_CTL__ENET1_RX_EN 0x3081 MX6SX_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M 0x91 + /* phy reset */ + MX6SX_PAD_ENET2_CRS__GPIO2_IO_7 0x10b0 >; }; diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi index c50c36baba75..8bf1c17f8cef 100644 --- a/arch/arm/boot/dts/stm32mp157c.dtsi +++ b/arch/arm/boot/dts/stm32mp157c.dtsi @@ -923,7 +923,7 @@ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>; clocks = <&rcc HASH1>; resets = <&rcc HASH1_R>; - dmas = <&mdma1 31 0x10 0x1000A02 0x0 0x0 0x0>; + dmas = <&mdma1 31 0x10 0x1000A02 0x0 0x0>; dma-names = "in"; dma-maxburst = <2>; status = "disabled"; diff --git a/arch/arm/boot/dts/vf610m4-colibri.dts b/arch/arm/boot/dts/vf610m4-colibri.dts index 41ec66a96990..ca6249558760 100644 --- a/arch/arm/boot/dts/vf610m4-colibri.dts +++ b/arch/arm/boot/dts/vf610m4-colibri.dts @@ -50,8 +50,8 @@ compatible = "fsl,vf610m4"; chosen { - bootargs = "console=ttyLP2,115200 clk_ignore_unused init=/linuxrc rw"; - stdout-path = "&uart2"; + bootargs = "clk_ignore_unused init=/linuxrc rw"; + stdout-path = "serial2:115200"; }; memory@8c000000 { diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h index 0d289240b6ca..775cac3c02bb 100644 --- a/arch/arm/include/asm/cputype.h +++ b/arch/arm/include/asm/cputype.h @@ -111,6 +111,7 @@ #include <linux/kernel.h> extern unsigned int processor_id; +struct proc_info_list *lookup_processor(u32 midr); #ifdef CONFIG_CPU_CP15 #define read_cpuid(reg) \ diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h index 92fd2c8a9af0..12659ce5c1f3 100644 --- a/arch/arm/include/asm/pgtable-2level.h +++ b/arch/arm/include/asm/pgtable-2level.h @@ -10,7 +10,7 @@ #ifndef _ASM_PGTABLE_2LEVEL_H #define _ASM_PGTABLE_2LEVEL_H -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 /* * Hardware-wise, we have a two level page table structure, where the first diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h index e25f4392e1b2..e1b6f280ab08 100644 --- a/arch/arm/include/asm/proc-fns.h +++ b/arch/arm/include/asm/proc-fns.h @@ -23,7 +23,7 @@ struct mm_struct; /* * Don't change this structure - ASM code relies on it. */ -extern struct processor { +struct processor { /* MISC * get data abort address/flags */ @@ -79,9 +79,13 @@ extern struct processor { unsigned int suspend_size; void (*do_suspend)(void *); void (*do_resume)(void *); -} processor; +}; #ifndef MULTI_CPU +static inline void init_proc_vtable(const struct processor *p) +{ +} + extern void cpu_proc_init(void); extern void cpu_proc_fin(void); extern int cpu_do_idle(void); @@ -98,17 +102,50 @@ extern void cpu_reset(unsigned long addr, bool hvc) __attribute__((noreturn)); extern void cpu_do_suspend(void *); extern void cpu_do_resume(void *); #else -#define cpu_proc_init processor._proc_init -#define cpu_proc_fin processor._proc_fin -#define cpu_reset processor.reset -#define cpu_do_idle processor._do_idle -#define cpu_dcache_clean_area processor.dcache_clean_area -#define cpu_set_pte_ext processor.set_pte_ext -#define cpu_do_switch_mm processor.switch_mm -/* These three are private to arch/arm/kernel/suspend.c */ -#define cpu_do_suspend processor.do_suspend -#define cpu_do_resume processor.do_resume +extern struct processor processor; +#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR) +#include <linux/smp.h> +/* + * This can't be a per-cpu variable because we need to access it before + * per-cpu has been initialised. We have a couple of functions that are + * called in a pre-emptible context, and so can't use smp_processor_id() + * there, hence PROC_TABLE(). We insist in init_proc_vtable() that the + * function pointers for these are identical across all CPUs. + */ +extern struct processor *cpu_vtable[]; +#define PROC_VTABLE(f) cpu_vtable[smp_processor_id()]->f +#define PROC_TABLE(f) cpu_vtable[0]->f +static inline void init_proc_vtable(const struct processor *p) +{ + unsigned int cpu = smp_processor_id(); + *cpu_vtable[cpu] = *p; + WARN_ON_ONCE(cpu_vtable[cpu]->dcache_clean_area != + cpu_vtable[0]->dcache_clean_area); + WARN_ON_ONCE(cpu_vtable[cpu]->set_pte_ext != + cpu_vtable[0]->set_pte_ext); +} +#else +#define PROC_VTABLE(f) processor.f +#define PROC_TABLE(f) processor.f +static inline void init_proc_vtable(const struct processor *p) +{ + processor = *p; +} +#endif + +#define cpu_proc_init PROC_VTABLE(_proc_init) +#define cpu_check_bugs PROC_VTABLE(check_bugs) +#define cpu_proc_fin PROC_VTABLE(_proc_fin) +#define cpu_reset PROC_VTABLE(reset) +#define cpu_do_idle PROC_VTABLE(_do_idle) +#define cpu_dcache_clean_area PROC_TABLE(dcache_clean_area) +#define cpu_set_pte_ext PROC_TABLE(set_pte_ext) +#define cpu_do_switch_mm PROC_VTABLE(switch_mm) + +/* These two are private to arch/arm/kernel/suspend.c */ +#define cpu_do_suspend PROC_VTABLE(do_suspend) +#define cpu_do_resume PROC_VTABLE(do_resume) #endif extern void cpu_resume(void); diff --git a/arch/arm/kernel/bugs.c b/arch/arm/kernel/bugs.c index 7be511310191..d41d3598e5e5 100644 --- a/arch/arm/kernel/bugs.c +++ b/arch/arm/kernel/bugs.c @@ -6,8 +6,8 @@ void check_other_bugs(void) { #ifdef MULTI_CPU - if (processor.check_bugs) - processor.check_bugs(); + if (cpu_check_bugs) + cpu_check_bugs(); #endif } diff --git a/arch/arm/kernel/head-common.S b/arch/arm/kernel/head-common.S index 6e0375e7db05..997b02302c31 100644 --- a/arch/arm/kernel/head-common.S +++ b/arch/arm/kernel/head-common.S @@ -145,6 +145,9 @@ __mmap_switched_data: #endif .size __mmap_switched_data, . - __mmap_switched_data + __FINIT + .text + /* * This provides a C-API version of __lookup_processor_type */ @@ -156,9 +159,6 @@ ENTRY(lookup_processor_type) ldmfd sp!, {r4 - r6, r9, pc} ENDPROC(lookup_processor_type) - __FINIT - .text - /* * Read processor ID register (CP#15, CR0), and look up in the linker-built * supported processor list. Note that we can't use the absolute addresses diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index ac7e08886863..375b13f7e780 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -114,6 +114,11 @@ EXPORT_SYMBOL(elf_hwcap2); #ifdef MULTI_CPU struct processor processor __ro_after_init; +#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR) +struct processor *cpu_vtable[NR_CPUS] = { + [0] = &processor, +}; +#endif #endif #ifdef MULTI_TLB struct cpu_tlb_fns cpu_tlb __ro_after_init; @@ -666,28 +671,33 @@ static void __init smp_build_mpidr_hash(void) } #endif -static void __init setup_processor(void) +/* + * locate processor in the list of supported processor types. The linker + * builds this table for us from the entries in arch/arm/mm/proc-*.S + */ +struct proc_info_list *lookup_processor(u32 midr) { - struct proc_info_list *list; + struct proc_info_list *list = lookup_processor_type(midr); - /* - * locate processor in the list of supported processor - * types. The linker builds this table for us from the - * entries in arch/arm/mm/proc-*.S - */ - list = lookup_processor_type(read_cpuid_id()); if (!list) { - pr_err("CPU configuration botched (ID %08x), unable to continue.\n", - read_cpuid_id()); - while (1); + pr_err("CPU%u: configuration botched (ID %08x), CPU halted\n", + smp_processor_id(), midr); + while (1) + /* can't use cpu_relax() here as it may require MMU setup */; } + return list; +} + +static void __init setup_processor(void) +{ + unsigned int midr = read_cpuid_id(); + struct proc_info_list *list = lookup_processor(midr); + cpu_name = list->cpu_name; __cpu_architecture = __get_cpu_architecture(); -#ifdef MULTI_CPU - processor = *list->proc; -#endif + init_proc_vtable(list->proc); #ifdef MULTI_TLB cpu_tlb = *list->tlb; #endif @@ -699,7 +709,7 @@ static void __init setup_processor(void) #endif pr_info("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n", - cpu_name, read_cpuid_id(), read_cpuid_id() & 15, + list->cpu_name, midr, midr & 15, proc_arch[cpu_architecture()], get_cr()); snprintf(init_utsname()->machine, __NEW_UTS_LEN + 1, "%s%c", diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 0978282d5fc2..12a6172263c0 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -42,6 +42,7 @@ #include <asm/mmu_context.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> +#include <asm/procinfo.h> #include <asm/processor.h> #include <asm/sections.h> #include <asm/tlbflush.h> @@ -102,6 +103,30 @@ static unsigned long get_arch_pgd(pgd_t *pgd) #endif } +#if defined(CONFIG_BIG_LITTLE) && defined(CONFIG_HARDEN_BRANCH_PREDICTOR) +static int secondary_biglittle_prepare(unsigned int cpu) +{ + if (!cpu_vtable[cpu]) + cpu_vtable[cpu] = kzalloc(sizeof(*cpu_vtable[cpu]), GFP_KERNEL); + + return cpu_vtable[cpu] ? 0 : -ENOMEM; +} + +static void secondary_biglittle_init(void) +{ + init_proc_vtable(lookup_processor(read_cpuid_id())->proc); +} +#else +static int secondary_biglittle_prepare(unsigned int cpu) +{ + return 0; +} + +static void secondary_biglittle_init(void) +{ +} +#endif + int __cpu_up(unsigned int cpu, struct task_struct *idle) { int ret; @@ -109,6 +134,10 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) if (!smp_ops.smp_boot_secondary) return -ENOSYS; + ret = secondary_biglittle_prepare(cpu); + if (ret) + return ret; + /* * We need to tell the secondary core where to find * its stack and the page tables. @@ -359,6 +388,8 @@ asmlinkage void secondary_start_kernel(void) struct mm_struct *mm = &init_mm; unsigned int cpu; + secondary_biglittle_init(); + /* * The identity mapping is uncached (strongly ordered), so * switch away from it before attempting any exclusive accesses. diff --git a/arch/arm/mach-omap1/board-ams-delta.c b/arch/arm/mach-omap1/board-ams-delta.c index af318d958fd2..3d191fd52910 100644 --- a/arch/arm/mach-omap1/board-ams-delta.c +++ b/arch/arm/mach-omap1/board-ams-delta.c @@ -773,7 +773,7 @@ static struct plat_serial8250_port ams_delta_modem_ports[] = { { .membase = IOMEM(MODEM_VIRT), .mapbase = MODEM_PHYS, - .irq = -EINVAL, /* changed later */ + .irq = IRQ_NOTCONNECTED, /* changed later */ .flags = UPF_BOOT_AUTOCONF, .irqflags = IRQF_TRIGGER_RISING, .iotype = UPIO_MEM, @@ -864,8 +864,7 @@ static int __init modem_nreset_init(void) /* - * This function expects MODEM IRQ number already assigned to the port - * and fails if it's not. + * This function expects MODEM IRQ number already assigned to the port. * The MODEM device requires its RESET# pin kept high during probe. * That requirement can be fulfilled in several ways: * - with a descriptor of already functional modem_nreset regulator @@ -888,9 +887,6 @@ static int __init ams_delta_modem_init(void) if (!machine_is_ams_delta()) return -ENODEV; - if (ams_delta_modem_ports[0].irq < 0) - return ams_delta_modem_ports[0].irq; - omap_cfg_reg(M14_1510_GPIO2); /* Initialize the modem_nreset regulator consumer before use */ diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c index 9500b6e27380..f86b72d1d59e 100644 --- a/arch/arm/mach-omap2/display.c +++ b/arch/arm/mach-omap2/display.c @@ -209,11 +209,61 @@ static int __init omapdss_init_fbdev(void) return 0; } -#else -static inline int omapdss_init_fbdev(void) + +static const char * const omapdss_compat_names[] __initconst = { + "ti,omap2-dss", + "ti,omap3-dss", + "ti,omap4-dss", + "ti,omap5-dss", + "ti,dra7-dss", +}; + +static struct device_node * __init omapdss_find_dss_of_node(void) { - return 0; + struct device_node *node; + int i; + + for (i = 0; i < ARRAY_SIZE(omapdss_compat_names); ++i) { + node = of_find_compatible_node(NULL, NULL, + omapdss_compat_names[i]); + if (node) + return node; + } + + return NULL; } + +static int __init omapdss_init_of(void) +{ + int r; + struct device_node *node; + struct platform_device *pdev; + + /* only create dss helper devices if dss is enabled in the .dts */ + + node = omapdss_find_dss_of_node(); + if (!node) + return 0; + + if (!of_device_is_available(node)) + return 0; + + pdev = of_find_device_by_node(node); + + if (!pdev) { + pr_err("Unable to find DSS platform device\n"); + return -ENODEV; + } + + r = of_platform_populate(node, NULL, NULL, &pdev->dev); + if (r) { + pr_err("Unable to populate DSS submodule devices\n"); + return r; + } + + return omapdss_init_fbdev(); +} +omap_device_initcall(omapdss_init_of); #endif /* CONFIG_FB_OMAP2 */ static void dispc_disable_outputs(void) @@ -361,58 +411,3 @@ int omap_dss_reset(struct omap_hwmod *oh) return r; } - -static const char * const omapdss_compat_names[] __initconst = { - "ti,omap2-dss", - "ti,omap3-dss", - "ti,omap4-dss", - "ti,omap5-dss", - "ti,dra7-dss", -}; - -static struct device_node * __init omapdss_find_dss_of_node(void) -{ - struct device_node *node; - int i; - - for (i = 0; i < ARRAY_SIZE(omapdss_compat_names); ++i) { - node = of_find_compatible_node(NULL, NULL, - omapdss_compat_names[i]); - if (node) - return node; - } - - return NULL; -} - -static int __init omapdss_init_of(void) -{ - int r; - struct device_node *node; - struct platform_device *pdev; - - /* only create dss helper devices if dss is enabled in the .dts */ - - node = omapdss_find_dss_of_node(); - if (!node) - return 0; - - if (!of_device_is_available(node)) - return 0; - - pdev = of_find_device_by_node(node); - - if (!pdev) { - pr_err("Unable to find DSS platform device\n"); - return -ENODEV; - } - - r = of_platform_populate(node, NULL, NULL, &pdev->dev); - if (r) { - pr_err("Unable to populate DSS submodule devices\n"); - return r; - } - - return omapdss_init_fbdev(); -} -omap_device_initcall(omapdss_init_of); diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c index 5544b82a2e7a..9a07916af8dd 100644 --- a/arch/arm/mm/proc-v7-bugs.c +++ b/arch/arm/mm/proc-v7-bugs.c @@ -52,8 +52,6 @@ static void cpu_v7_spectre_init(void) case ARM_CPU_PART_CORTEX_A17: case ARM_CPU_PART_CORTEX_A73: case ARM_CPU_PART_CORTEX_A75: - if (processor.switch_mm != cpu_v7_bpiall_switch_mm) - goto bl_error; per_cpu(harden_branch_predictor_fn, cpu) = harden_branch_predictor_bpiall; spectre_v2_method = "BPIALL"; @@ -61,8 +59,6 @@ static void cpu_v7_spectre_init(void) case ARM_CPU_PART_CORTEX_A15: case ARM_CPU_PART_BRAHMA_B15: - if (processor.switch_mm != cpu_v7_iciallu_switch_mm) - goto bl_error; per_cpu(harden_branch_predictor_fn, cpu) = harden_branch_predictor_iciallu; spectre_v2_method = "ICIALLU"; @@ -88,11 +84,9 @@ static void cpu_v7_spectre_init(void) ARM_SMCCC_ARCH_WORKAROUND_1, &res); if ((int)res.a0 != 0) break; - if (processor.switch_mm != cpu_v7_hvc_switch_mm && cpu) - goto bl_error; per_cpu(harden_branch_predictor_fn, cpu) = call_hvc_arch_workaround_1; - processor.switch_mm = cpu_v7_hvc_switch_mm; + cpu_do_switch_mm = cpu_v7_hvc_switch_mm; spectre_v2_method = "hypervisor"; break; @@ -101,11 +95,9 @@ static void cpu_v7_spectre_init(void) ARM_SMCCC_ARCH_WORKAROUND_1, &res); if ((int)res.a0 != 0) break; - if (processor.switch_mm != cpu_v7_smc_switch_mm && cpu) - goto bl_error; per_cpu(harden_branch_predictor_fn, cpu) = call_smc_arch_workaround_1; - processor.switch_mm = cpu_v7_smc_switch_mm; + cpu_do_switch_mm = cpu_v7_smc_switch_mm; spectre_v2_method = "firmware"; break; @@ -119,11 +111,6 @@ static void cpu_v7_spectre_init(void) if (spectre_v2_method) pr_info("CPU%u: Spectre v2: using %s workaround\n", smp_processor_id(), spectre_v2_method); - return; - -bl_error: - pr_err("CPU%u: Spectre v2: incorrect context switching function, system vulnerable\n", - cpu); } #else static void cpu_v7_spectre_init(void) diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 6fe52819e014..339eb17c9808 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -112,7 +112,7 @@ ENTRY(cpu_v7_hvc_switch_mm) hvc #0 ldmfd sp!, {r0 - r3} b cpu_v7_switch_mm -ENDPROC(cpu_v7_smc_switch_mm) +ENDPROC(cpu_v7_hvc_switch_mm) #endif ENTRY(cpu_v7_iciallu_switch_mm) mov r3, #0 diff --git a/arch/arm/plat-orion/mpp.c b/arch/arm/plat-orion/mpp.c index 5b4ff9373c89..8a6880d528b6 100644 --- a/arch/arm/plat-orion/mpp.c +++ b/arch/arm/plat-orion/mpp.c @@ -28,10 +28,15 @@ void __init orion_mpp_conf(unsigned int *mpp_list, unsigned int variant_mask, unsigned int mpp_max, void __iomem *dev_bus) { unsigned int mpp_nr_regs = (1 + mpp_max/8); - u32 mpp_ctrl[mpp_nr_regs]; + u32 mpp_ctrl[8]; int i; printk(KERN_DEBUG "initial MPP regs:"); + if (mpp_nr_regs > ARRAY_SIZE(mpp_ctrl)) { + printk(KERN_ERR "orion_mpp_conf: invalid mpp_max\n"); + return; + } + for (i = 0; i < mpp_nr_regs; i++) { mpp_ctrl[i] = readl(mpp_ctrl_addr(i, dev_bus)); printk(" %08x", mpp_ctrl[i]); diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index aff6e6eadc70..ee7b07938dd5 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -573,7 +573,7 @@ int vfp_preserve_user_clear_hwstate(struct user_vfp *ufp, */ ufp_exc->fpexc = hwstate->fpexc; ufp_exc->fpinst = hwstate->fpinst; - ufp_exc->fpinst2 = ufp_exc->fpinst2; + ufp_exc->fpinst2 = hwstate->fpinst2; /* Ensure that VFP is disabled. */ vfp_flush_hwstate(thread); diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index b4e994cd3a42..6cb9fc7e9382 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -134,6 +134,7 @@ vdso_install: archclean: $(Q)$(MAKE) $(clean)=$(boot) +ifeq ($(KBUILD_EXTMOD),) # We need to generate vdso-offsets.h before compiling certain files in kernel/. # In order to do that, we should use the archprepare target, but we can't since # asm-offsets.h is included in some files used to generate vdso-offsets.h, and @@ -143,6 +144,7 @@ archclean: prepare: vdso_prepare vdso_prepare: prepare0 $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso include/generated/vdso-offsets.h +endif define archhelp echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' diff --git a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi index 8253a1a9e985..fef7351e9f67 100644 --- a/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi +++ b/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi @@ -139,6 +139,7 @@ clock-names = "stmmaceth"; tx-fifo-depth = <16384>; rx-fifo-depth = <16384>; + snps,multicast-filter-bins = <256>; status = "disabled"; }; @@ -154,6 +155,7 @@ clock-names = "stmmaceth"; tx-fifo-depth = <16384>; rx-fifo-depth = <16384>; + snps,multicast-filter-bins = <256>; status = "disabled"; }; @@ -169,6 +171,7 @@ clock-names = "stmmaceth"; tx-fifo-depth = <16384>; rx-fifo-depth = <16384>; + snps,multicast-filter-bins = <256>; status = "disabled"; }; diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi index b5f2273caca4..a79c8d369e0b 100644 --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi @@ -652,7 +652,7 @@ clock-names = "fck", "brg_int", "scif_clk"; dmas = <&dmac1 0x35>, <&dmac1 0x34>, <&dmac2 0x35>, <&dmac2 0x34>; - dma-names = "tx", "rx"; + dma-names = "tx", "rx", "tx", "rx"; power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; resets = <&cpg 518>; status = "disabled"; diff --git a/arch/arm64/boot/dts/renesas/r8a77980-condor.dts b/arch/arm64/boot/dts/renesas/r8a77980-condor.dts index fe2e2c051cc9..5a7012be0d6a 100644 --- a/arch/arm64/boot/dts/renesas/r8a77980-condor.dts +++ b/arch/arm64/boot/dts/renesas/r8a77980-condor.dts @@ -15,7 +15,7 @@ aliases { serial0 = &scif0; - ethernet0 = &avb; + ethernet0 = &gether; }; chosen { @@ -97,23 +97,6 @@ }; }; -&avb { - pinctrl-0 = <&avb_pins>; - pinctrl-names = "default"; - - phy-mode = "rgmii-id"; - phy-handle = <&phy0>; - renesas,no-ether-link; - status = "okay"; - - phy0: ethernet-phy@0 { - rxc-skew-ps = <1500>; - reg = <0>; - interrupt-parent = <&gpio1>; - interrupts = <17 IRQ_TYPE_LEVEL_LOW>; - }; -}; - &canfd { pinctrl-0 = <&canfd0_pins>; pinctrl-names = "default"; @@ -139,6 +122,23 @@ clock-frequency = <32768>; }; +&gether { + pinctrl-0 = <&gether_pins>; + pinctrl-names = "default"; + + phy-mode = "rgmii-id"; + phy-handle = <&phy0>; + renesas,no-ether-link; + status = "okay"; + + phy0: ethernet-phy@0 { + rxc-skew-ps = <1500>; + reg = <0>; + interrupt-parent = <&gpio4>; + interrupts = <23 IRQ_TYPE_LEVEL_LOW>; + }; +}; + &i2c0 { pinctrl-0 = <&i2c0_pins>; pinctrl-names = "default"; @@ -236,16 +236,17 @@ }; &pfc { - avb_pins: avb { - groups = "avb_mdio", "avb_rgmii"; - function = "avb"; - }; - canfd0_pins: canfd0 { groups = "canfd0_data_a"; function = "canfd0"; }; + gether_pins: gether { + groups = "gether_mdio_a", "gether_rgmii", + "gether_txcrefclk", "gether_txcrefclk_mega"; + function = "gether"; + }; + i2c0_pins: i2c0 { groups = "i2c0"; function = "i2c0"; diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 3cb995606e60..c9a57d11330b 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -308,6 +308,9 @@ CONFIG_SERIAL_XILINX_PS_UART_CONSOLE=y CONFIG_SERIAL_MVEBU_UART=y CONFIG_SERIAL_DEV_BUS=y CONFIG_VIRTIO_CONSOLE=y +CONFIG_IPMI_HANDLER=m +CONFIG_IPMI_DEVICE_INTERFACE=m +CONFIG_IPMI_SI=m CONFIG_TCG_TPM=y CONFIG_TCG_TIS_I2C_INFINEON=y CONFIG_I2C_CHARDEV=y diff --git a/arch/arm64/include/asm/percpu.h b/arch/arm64/include/asm/percpu.h index 9234013e759e..21a81b59a0cc 100644 --- a/arch/arm64/include/asm/percpu.h +++ b/arch/arm64/include/asm/percpu.h @@ -96,6 +96,7 @@ static inline unsigned long __percpu_##op(void *ptr, \ : [val] "Ir" (val)); \ break; \ default: \ + ret = 0; \ BUILD_BUG(); \ } \ \ @@ -125,6 +126,7 @@ static inline unsigned long __percpu_read(void *ptr, int size) ret = READ_ONCE(*(u64 *)ptr); break; default: + ret = 0; BUILD_BUG(); } @@ -194,6 +196,7 @@ static inline unsigned long __percpu_xchg(void *ptr, unsigned long val, : [val] "r" (val)); break; default: + ret = 0; BUILD_BUG(); } diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 3e2091708b8e..6b0d4dff5012 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -24,6 +24,14 @@ #define KERNEL_DS UL(-1) #define USER_DS (TASK_SIZE_64 - 1) +/* + * On arm64 systems, unaligned accesses by the CPU are cheap, and so there is + * no point in shifting all network buffers by 2 bytes just to make some IP + * header fields appear aligned in memory, potentially sacrificing some DMA + * performance on some platforms. + */ +#define NET_IP_ALIGN 0 + #ifndef __ASSEMBLY__ #ifdef __KERNEL__ diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 0c909c4a932f..842fb9572661 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -468,7 +468,7 @@ SCTLR_ELx_SA | SCTLR_ELx_I | SCTLR_ELx_WXN | \ SCTLR_ELx_DSSBS | ENDIAN_CLEAR_EL2 | SCTLR_EL2_RES0) -#if (SCTLR_EL2_SET ^ SCTLR_EL2_CLEAR) != 0xffffffffffffffff +#if (SCTLR_EL2_SET ^ SCTLR_EL2_CLEAR) != 0xffffffffffffffffUL #error "Inconsistent SCTLR_EL2 set/clear bits" #endif @@ -509,7 +509,7 @@ SCTLR_EL1_UMA | SCTLR_ELx_WXN | ENDIAN_CLEAR_EL1 |\ SCTLR_ELx_DSSBS | SCTLR_EL1_NTWI | SCTLR_EL1_RES0) -#if (SCTLR_EL1_SET ^ SCTLR_EL1_CLEAR) != 0xffffffffffffffff +#if (SCTLR_EL1_SET ^ SCTLR_EL1_CLEAR) != 0xffffffffffffffffUL #error "Inconsistent SCTLR_EL1 set/clear bits" #endif diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index af50064dea51..aec5ecb85737 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1333,7 +1333,6 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .cpu_enable = cpu_enable_hw_dbm, }, #endif -#ifdef CONFIG_ARM64_SSBD { .desc = "CRC32 instructions", .capability = ARM64_HAS_CRC32, @@ -1343,6 +1342,7 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .field_pos = ID_AA64ISAR0_CRC32_SHIFT, .min_field_value = 1, }, +#ifdef CONFIG_ARM64_SSBD { .desc = "Speculative Store Bypassing Safe (SSBS)", .capability = ARM64_SSBS, diff --git a/arch/arm64/kernel/crash_dump.c b/arch/arm64/kernel/crash_dump.c index f46d57c31443..6b5037ed15b2 100644 --- a/arch/arm64/kernel/crash_dump.c +++ b/arch/arm64/kernel/crash_dump.c @@ -58,7 +58,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, /** * elfcorehdr_read - read from ELF core header * @buf: buffer where the data is placed - * @csize: number of bytes to read + * @count: number of bytes to read * @ppos: address in the memory * * This function reads @count bytes from elf core header which exists diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c index 9b65132e789a..2a5b338b2542 100644 --- a/arch/arm64/kernel/probes/kprobes.c +++ b/arch/arm64/kernel/probes/kprobes.c @@ -23,7 +23,9 @@ #include <linux/slab.h> #include <linux/stop_machine.h> #include <linux/sched/debug.h> +#include <linux/set_memory.h> #include <linux/stringify.h> +#include <linux/vmalloc.h> #include <asm/traps.h> #include <asm/ptrace.h> #include <asm/cacheflush.h> @@ -42,10 +44,21 @@ DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk); static void __kprobes post_kprobe_handler(struct kprobe_ctlblk *, struct pt_regs *); +static int __kprobes patch_text(kprobe_opcode_t *addr, u32 opcode) +{ + void *addrs[1]; + u32 insns[1]; + + addrs[0] = addr; + insns[0] = opcode; + + return aarch64_insn_patch_text(addrs, insns, 1); +} + static void __kprobes arch_prepare_ss_slot(struct kprobe *p) { /* prepare insn slot */ - p->ainsn.api.insn[0] = cpu_to_le32(p->opcode); + patch_text(p->ainsn.api.insn, p->opcode); flush_icache_range((uintptr_t) (p->ainsn.api.insn), (uintptr_t) (p->ainsn.api.insn) + @@ -118,15 +131,15 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) return 0; } -static int __kprobes patch_text(kprobe_opcode_t *addr, u32 opcode) +void *alloc_insn_page(void) { - void *addrs[1]; - u32 insns[1]; + void *page; - addrs[0] = (void *)addr; - insns[0] = (u32)opcode; + page = vmalloc_exec(PAGE_SIZE); + if (page) + set_memory_ro((unsigned long)page, 1); - return aarch64_insn_patch_text(addrs, insns, 1); + return page; } /* arm kprobe: install breakpoint in text */ diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index ce99c58cd1f1..d9a4c2d6dd8b 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -497,25 +497,3 @@ void arch_setup_new_exec(void) { current->mm->context.flags = is_compat_task() ? MMCF_AARCH32 : 0; } - -#ifdef CONFIG_GCC_PLUGIN_STACKLEAK -void __used stackleak_check_alloca(unsigned long size) -{ - unsigned long stack_left; - unsigned long current_sp = current_stack_pointer; - struct stack_info info; - - BUG_ON(!on_accessible_stack(current, current_sp, &info)); - - stack_left = current_sp - info.low; - - /* - * There's a good chance we're almost out of stack space if this - * is true. Using panic() over BUG() is more likely to give - * reliable debugging output. - */ - if (size >= stack_left) - panic("alloca() over the kernel stack boundary\n"); -} -EXPORT_SYMBOL(stackleak_check_alloca); -#endif diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 953e316521fc..f4fc1e0544b7 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -313,6 +313,7 @@ void __init setup_arch(char **cmdline_p) arm64_memblock_init(); paging_init(); + efi_apply_persistent_mem_reservations(); acpi_table_upgrade(); diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 3a703e5d4e32..a3ac26284845 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -160,6 +160,7 @@ void arch_sync_dma_for_cpu(struct device *dev, phys_addr_t paddr, __dma_unmap_area(phys_to_virt(paddr), size, dir); } +#ifdef CONFIG_IOMMU_DMA static int __swiotlb_get_sgtable_page(struct sg_table *sgt, struct page *page, size_t size) { @@ -188,6 +189,7 @@ static int __swiotlb_mmap_pfn(struct vm_area_struct *vma, return ret; } +#endif /* CONFIG_IOMMU_DMA */ static int __init atomic_pool_init(void) { diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 9d9582cac6c4..9b432d9fcada 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -483,8 +483,6 @@ void __init arm64_memblock_init(void) high_memory = __va(memblock_end_of_DRAM() - 1) + 1; dma_contiguous_reserve(arm64_dma_phys_limit); - - memblock_allow_resize(); } void __init bootmem_init(void) diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 394b8d554def..d1d6601b385d 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -659,6 +659,8 @@ void __init paging_init(void) memblock_free(__pa_symbol(init_pg_dir), __pa_symbol(init_pg_end) - __pa_symbol(init_pg_dir)); + + memblock_allow_resize(); } /* diff --git a/arch/csky/Kconfig.debug b/arch/csky/Kconfig.debug index 48cf6ff9df4a..22a162cd99e8 100644 --- a/arch/csky/Kconfig.debug +++ b/arch/csky/Kconfig.debug @@ -1,9 +1 @@ -menu "C-SKY Debug Options" -config CSKY_BUILTIN_DTB - string "Use kernel builtin dtb" - help - User could define the dtb instead of the one which is passed from - bootloader. - Sometimes for debug, we want to use a built-in dtb and then we needn't - modify bootloader at all. -endmenu +# dummy file, do not delete diff --git a/arch/csky/Makefile b/arch/csky/Makefile index 67a4ae1fba2b..c639fc167895 100644 --- a/arch/csky/Makefile +++ b/arch/csky/Makefile @@ -65,26 +65,15 @@ libs-y += arch/csky/lib/ \ $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name) boot := arch/csky/boot -ifneq '$(CONFIG_CSKY_BUILTIN_DTB)' '""' core-y += $(boot)/dts/ -endif all: zImage - -dtbs: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts - -%.dtb %.dtb.S %.dtb.o: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ - -zImage Image uImage: vmlinux dtbs +zImage Image uImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ archclean: $(Q)$(MAKE) $(clean)=$(boot) - $(Q)$(MAKE) $(clean)=$(boot)/dts - rm -rf arch/csky/include/generated define archhelp echo '* zImage - Compressed kernel image (arch/$(ARCH)/boot/zImage)' diff --git a/arch/csky/boot/dts/Makefile b/arch/csky/boot/dts/Makefile index 305e81a5e91e..c57ad3c880bf 100644 --- a/arch/csky/boot/dts/Makefile +++ b/arch/csky/boot/dts/Makefile @@ -1,13 +1,3 @@ dtstree := $(srctree)/$(src) -ifneq '$(CONFIG_CSKY_BUILTIN_DTB)' '""' -builtindtb-y := $(patsubst "%",%,$(CONFIG_CSKY_BUILTIN_DTB)) -dtb-y += $(builtindtb-y).dtb -obj-y += $(builtindtb-y).dtb.o -.SECONDARY: $(obj)/$(builtindtb-y).dtb.S -else dtb-y := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) -endif - -always += $(dtb-y) -clean-files += *.dtb *.dtb.S diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 6181e4134483..fe3ddd73a0cc 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -55,12 +55,12 @@ */ #ifdef CONFIG_SUN3 #define PTRS_PER_PTE 16 -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 2048 #elif defined(CONFIG_COLDFIRE) #define PTRS_PER_PTE 512 -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 1024 #else diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index f64ebb9c9a41..e14b6621c933 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -63,7 +63,7 @@ extern int mem_init_done; #include <asm-generic/4level-fixup.h> -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #ifdef __KERNEL__ #ifndef __ASSEMBLY__ diff --git a/arch/mips/Makefile b/arch/mips/Makefile index 15a84cfd0719..68410490e12f 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -128,7 +128,7 @@ cflags-y += -ffreestanding # clang's output will be based upon the build machine. So for clang we simply # unconditionally specify -EB or -EL as appropriate. # -ifeq ($(cc-name),clang) +ifdef CONFIG_CC_IS_CLANG cflags-$(CONFIG_CPU_BIG_ENDIAN) += -EB cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -EL else diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper.c b/arch/mips/cavium-octeon/executive/cvmx-helper.c index 75108ec669eb..6c79e8a16a26 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c @@ -67,7 +67,7 @@ void (*cvmx_override_pko_queue_priority) (int pko_port, void (*cvmx_override_ipd_port_setup) (int ipd_port); /* Port count per interface */ -static int interface_port_count[5]; +static int interface_port_count[9]; /** * Return the number of interfaces the chip has. Each interface diff --git a/arch/mips/configs/cavium_octeon_defconfig b/arch/mips/configs/cavium_octeon_defconfig index 490b12af103c..c52d0efacd14 100644 --- a/arch/mips/configs/cavium_octeon_defconfig +++ b/arch/mips/configs/cavium_octeon_defconfig @@ -140,6 +140,7 @@ CONFIG_RTC_CLASS=y CONFIG_RTC_DRV_DS1307=y CONFIG_STAGING=y CONFIG_OCTEON_ETHERNET=y +CONFIG_OCTEON_USB=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_RAS=y CONFIG_EXT4_FS=y diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index ea09ed6a80a9..8c6c48ed786a 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -794,6 +794,7 @@ static void __init arch_mem_init(char **cmdline_p) /* call board setup routine */ plat_mem_setup(); + memblock_set_bottom_up(true); /* * Make sure all kernel memory is in the maps. The "UP" and diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 0f852e1b5891..15e103c6d799 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -2260,10 +2260,8 @@ void __init trap_init(void) unsigned long size = 0x200 + VECTORSPACING*64; phys_addr_t ebase_pa; - memblock_set_bottom_up(true); ebase = (unsigned long) memblock_alloc_from(size, 1 << fls(size), 0); - memblock_set_bottom_up(false); /* * Try to ensure ebase resides in KSeg0 if possible. @@ -2307,6 +2305,7 @@ void __init trap_init(void) if (board_ebase_setup) board_ebase_setup(); per_cpu_trap_init(true); + memblock_set_bottom_up(false); /* * Copy the generic exception handlers to their final destination. diff --git a/arch/mips/loongson64/loongson-3/numa.c b/arch/mips/loongson64/loongson-3/numa.c index 622761878cd1..60bf0a1cb757 100644 --- a/arch/mips/loongson64/loongson-3/numa.c +++ b/arch/mips/loongson64/loongson-3/numa.c @@ -231,6 +231,8 @@ static __init void prom_meminit(void) cpumask_clear(&__node_data[(node)]->cpumask); } } + max_low_pfn = PHYS_PFN(memblock_end_of_DRAM()); + for (cpu = 0; cpu < loongson_sysconf.nr_cpus; cpu++) { node = cpu / loongson_sysconf.cores_per_node; if (node >= num_online_nodes()) @@ -248,19 +250,9 @@ static __init void prom_meminit(void) void __init paging_init(void) { - unsigned node; unsigned long zones_size[MAX_NR_ZONES] = {0, }; pagetable_init(); - - for_each_online_node(node) { - unsigned long start_pfn, end_pfn; - - get_pfn_range_for_nid(node, &start_pfn, &end_pfn); - - if (end_pfn > max_low_pfn) - max_low_pfn = end_pfn; - } #ifdef CONFIG_ZONE_DMA32 zones_size[ZONE_DMA32] = MAX_DMA32_PFN; #endif diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index e6c9485cadcf..cb38461391cb 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -50,7 +50,7 @@ void *arch_dma_alloc(struct device *dev, size_t size, void *ret; ret = dma_direct_alloc_pages(dev, size, dma_handle, gfp, attrs); - if (!ret && !(attrs & DMA_ATTR_NON_CONSISTENT)) { + if (ret && !(attrs & DMA_ATTR_NON_CONSISTENT)) { dma_cache_wback_inv((unsigned long) ret, size); ret = (void *)UNCAC_ADDR(ret); } diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c index d8b8444d6795..813d13f92957 100644 --- a/arch/mips/sgi-ip27/ip27-memory.c +++ b/arch/mips/sgi-ip27/ip27-memory.c @@ -435,6 +435,7 @@ void __init prom_meminit(void) mlreset(); szmem(); + max_low_pfn = PHYS_PFN(memblock_end_of_DRAM()); for (node = 0; node < MAX_COMPACT_NODES; node++) { if (node_online(node)) { @@ -455,18 +456,8 @@ extern void setup_zero_pages(void); void __init paging_init(void) { unsigned long zones_size[MAX_NR_ZONES] = {0, }; - unsigned node; pagetable_init(); - - for_each_online_node(node) { - unsigned long start_pfn, end_pfn; - - get_pfn_range_for_nid(node, &start_pfn, &end_pfn); - - if (end_pfn > max_low_pfn) - max_low_pfn = end_pfn; - } zones_size[ZONE_NORMAL] = max_low_pfn; free_area_init_nodes(zones_size); } diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile index 34605ca21498..58a0315ad743 100644 --- a/arch/mips/vdso/Makefile +++ b/arch/mips/vdso/Makefile @@ -10,7 +10,7 @@ ccflags-vdso := \ $(filter -march=%,$(KBUILD_CFLAGS)) \ -D__VDSO__ -ifeq ($(cc-name),clang) +ifdef CONFIG_CC_IS_CLANG ccflags-vdso += $(filter --target=%,$(KBUILD_CFLAGS)) endif diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h index d3e19a55cf53..9f52db930c00 100644 --- a/arch/nds32/include/asm/pgtable.h +++ b/arch/nds32/include/asm/pgtable.h @@ -4,7 +4,7 @@ #ifndef _ASMNDS32_PGTABLE_H #define _ASMNDS32_PGTABLE_H -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #include <asm-generic/4level-fixup.h> #include <asm-generic/sizes.h> diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h index b941ac7d4e70..c7bb74e22436 100644 --- a/arch/parisc/include/asm/pgtable.h +++ b/arch/parisc/include/asm/pgtable.h @@ -111,7 +111,7 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr) #if CONFIG_PGTABLE_LEVELS == 3 #define BITS_PER_PMD (PAGE_SHIFT + PMD_ORDER - BITS_PER_PMD_ENTRY) #else -#define __PAGETABLE_PMD_FOLDED +#define __PAGETABLE_PMD_FOLDED 1 #define BITS_PER_PMD 0 #endif #define PTRS_PER_PMD (1UL << BITS_PER_PMD) diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h index 16aec9ba2580..8a63515f03bf 100644 --- a/arch/parisc/include/asm/spinlock.h +++ b/arch/parisc/include/asm/spinlock.h @@ -37,8 +37,8 @@ static inline void arch_spin_unlock(arch_spinlock_t *x) volatile unsigned int *a; a = __ldcw_align(x); - /* Release with ordered store. */ - __asm__ __volatile__("stw,ma %0,0(%1)" : : "r"(1), "r"(a) : "memory"); + mb(); + *a = 1; } static inline int arch_spin_trylock(arch_spinlock_t *x) diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 9505c317818d..a9bc90dc4ae7 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -640,7 +640,8 @@ cas_action: sub,<> %r28, %r25, %r0 2: stw %r24, 0(%r26) /* Free lock */ - stw,ma %r20, 0(%sr2,%r20) + sync + stw %r20, 0(%sr2,%r20) #if ENABLE_LWS_DEBUG /* Clear thread register indicator */ stw %r0, 4(%sr2,%r20) @@ -654,7 +655,8 @@ cas_action: 3: /* Error occurred on load or store */ /* Free lock */ - stw,ma %r20, 0(%sr2,%r20) + sync + stw %r20, 0(%sr2,%r20) #if ENABLE_LWS_DEBUG stw %r0, 4(%sr2,%r20) #endif @@ -855,7 +857,8 @@ cas2_action: cas2_end: /* Free lock */ - stw,ma %r20, 0(%sr2,%r20) + sync + stw %r20, 0(%sr2,%r20) /* Enable interrupts */ ssm PSW_SM_I, %r0 /* Return to userspace, set no error */ @@ -865,7 +868,8 @@ cas2_end: 22: /* Error occurred on load or store */ /* Free lock */ - stw,ma %r20, 0(%sr2,%r20) + sync + stw %r20, 0(%sr2,%r20) ssm PSW_SM_I, %r0 ldo 1(%r0),%r28 b lws_exit diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 2d51b2bd4aa1..8be31261aec8 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -930,10 +930,6 @@ config FSL_GTM help Freescale General-purpose Timers support -# Yes MCA RS/6000s exist but Linux-PPC does not currently support any -config MCA - bool - # Platforms that what PCI turned unconditionally just do select PCI # in their config node. Platforms that want to choose at config # time should select PPC_PCI_CHOICE @@ -944,7 +940,6 @@ config PCI bool "PCI support" if PPC_PCI_CHOICE default y if !40x && !CPM2 && !PPC_8xx && !PPC_83xx \ && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON - default PCI_QSPAN if PPC_8xx select GENERIC_PCI_IOMAP help Find out whether your system includes a PCI bus. PCI is the name of @@ -958,14 +953,6 @@ config PCI_DOMAINS config PCI_SYSCALL def_bool PCI -config PCI_QSPAN - bool "QSpan PCI" - depends on PPC_8xx - select PPC_I8259 - help - Say Y here if you have a system based on a Motorola 8xx-series - embedded processor with a QSPAN PCI interface, otherwise say N. - config PCI_8260 bool depends on PCI && 8260 diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 17be664dafa2..8a2ce14d68d0 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -96,7 +96,7 @@ aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call cc-option,-mabi=elfv1) aflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mabi=elfv2 endif -ifneq ($(cc-name),clang) +ifndef CONFIG_CC_IS_CLANG cflags-$(CONFIG_CPU_LITTLE_ENDIAN) += -mno-strict-align endif @@ -175,7 +175,7 @@ endif # Work around gcc code-gen bugs with -pg / -fno-omit-frame-pointer in gcc <= 4.8 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44199 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52828 -ifneq ($(cc-name),clang) +ifndef CONFIG_CC_IS_CLANG CC_FLAGS_FTRACE += $(call cc-ifversion, -lt, 0409, -mno-sched-epilog) endif endif diff --git a/arch/powerpc/boot/dts/fsl/t2080rdb.dts b/arch/powerpc/boot/dts/fsl/t2080rdb.dts index 55c0210a771d..092a400740f8 100644 --- a/arch/powerpc/boot/dts/fsl/t2080rdb.dts +++ b/arch/powerpc/boot/dts/fsl/t2080rdb.dts @@ -77,12 +77,12 @@ }; ethernet@f0000 { - phy-handle = <&xg_cs4315_phy1>; + phy-handle = <&xg_cs4315_phy2>; phy-connection-type = "xgmii"; }; ethernet@f2000 { - phy-handle = <&xg_cs4315_phy2>; + phy-handle = <&xg_cs4315_phy1>; phy-connection-type = "xgmii"; }; diff --git a/arch/powerpc/boot/dts/mpc885ads.dts b/arch/powerpc/boot/dts/mpc885ads.dts index 5b037f51741d..3aa300afbbca 100644 --- a/arch/powerpc/boot/dts/mpc885ads.dts +++ b/arch/powerpc/boot/dts/mpc885ads.dts @@ -72,7 +72,7 @@ #address-cells = <1>; #size-cells = <1>; device_type = "soc"; - ranges = <0x0 0xff000000 0x4000>; + ranges = <0x0 0xff000000 0x28000>; bus-frequency = <0>; // Temporary -- will go away once kernel uses ranges for get_immrbase(). @@ -224,6 +224,17 @@ #size-cells = <0>; }; }; + + crypto@20000 { + compatible = "fsl,sec1.2", "fsl,sec1.0"; + reg = <0x20000 0x8000>; + interrupts = <1 1>; + interrupt-parent = <&PIC>; + fsl,num-channels = <1>; + fsl,channel-fifo-len = <24>; + fsl,exec-units-mask = <0x4c>; + fsl,descriptor-types-mask = <0x05000154>; + }; }; chosen { diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h index 31733a95bbd0..3d5acd2b113a 100644 --- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -36,6 +36,11 @@ int raw_patch_instruction(unsigned int *addr, unsigned int instr); int patch_instruction_site(s32 *addr, unsigned int instr); int patch_branch_site(s32 *site, unsigned long target, int flags); +static inline unsigned long patch_site_addr(s32 *site) +{ + return (unsigned long)site + *site; +} + int instr_is_relative_branch(unsigned int instr); int instr_is_relative_link_branch(unsigned int instr); int instr_is_branch_to_addr(const unsigned int *instr, unsigned long addr); diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index 3ef40b703c4a..e746becd9d6f 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -268,19 +268,13 @@ extern void _memcpy_toio(volatile void __iomem *dest, const void *src, * their hooks, a bitfield is reserved for use by the platform near the * top of MMIO addresses (not PIO, those have to cope the hard way). * - * This bit field is 12 bits and is at the top of the IO virtual - * addresses PCI_IO_INDIRECT_TOKEN_MASK. + * The highest address in the kernel virtual space are: * - * The kernel virtual space is thus: + * d0003fffffffffff # with Hash MMU + * c00fffffffffffff # with Radix MMU * - * 0xD000000000000000 : vmalloc - * 0xD000080000000000 : PCI PHB IO space - * 0xD000080080000000 : ioremap - * 0xD0000fffffffffff : end of ioremap region - * - * Since the top 4 bits are reserved as the region ID, we use thus - * the next 12 bits and keep 4 bits available for the future if the - * virtual address space is ever to be extended. + * The top 4 bits are reserved as the region ID on hash, leaving us 8 bits + * that can be used for the field. * * The direct IO mapping operations will then mask off those bits * before doing the actual access, though that only happen when @@ -292,8 +286,8 @@ extern void _memcpy_toio(volatile void __iomem *dest, const void *src, */ #ifdef CONFIG_PPC_INDIRECT_MMIO -#define PCI_IO_IND_TOKEN_MASK 0x0fff000000000000ul -#define PCI_IO_IND_TOKEN_SHIFT 48 +#define PCI_IO_IND_TOKEN_SHIFT 52 +#define PCI_IO_IND_TOKEN_MASK (0xfful << PCI_IO_IND_TOKEN_SHIFT) #define PCI_FIX_ADDR(addr) \ ((PCI_IO_ADDR)(((unsigned long)(addr)) & ~PCI_IO_IND_TOKEN_MASK)) #define PCI_GET_ADDR_TOKEN(addr) \ diff --git a/arch/powerpc/include/asm/mmu-8xx.h b/arch/powerpc/include/asm/mmu-8xx.h index 4f547752ae79..fa05aa566ece 100644 --- a/arch/powerpc/include/asm/mmu-8xx.h +++ b/arch/powerpc/include/asm/mmu-8xx.h @@ -34,20 +34,12 @@ * respectively NA for All or X for Supervisor and no access for User. * Then we use the APG to say whether accesses are according to Page rules or * "all Supervisor" rules (Access to all) - * We also use the 2nd APG bit for _PAGE_ACCESSED when having SWAP: - * When that bit is not set access is done iaw "all user" - * which means no access iaw page rules. - * Therefore, we define 4 APG groups. lsb is _PMD_USER, 2nd is _PAGE_ACCESSED - * 0x => No access => 11 (all accesses performed as user iaw page definition) - * 10 => No user => 01 (all accesses performed according to page definition) - * 11 => User => 00 (all accesses performed as supervisor iaw page definition) + * Therefore, we define 2 APG groups. lsb is _PMD_USER + * 0 => No user => 01 (all accesses performed according to page definition) + * 1 => User => 00 (all accesses performed as supervisor iaw page definition) * We define all 16 groups so that all other bits of APG can take any value */ -#ifdef CONFIG_SWAP -#define MI_APG_INIT 0xf4f4f4f4 -#else #define MI_APG_INIT 0x44444444 -#endif /* The effective page number register. When read, contains the information * about the last instruction TLB miss. When MI_RPN is written, bits in @@ -115,20 +107,12 @@ * Supervisor and no access for user and NA for ALL. * Then we use the APG to say whether accesses are according to Page rules or * "all Supervisor" rules (Access to all) - * We also use the 2nd APG bit for _PAGE_ACCESSED when having SWAP: - * When that bit is not set access is done iaw "all user" - * which means no access iaw page rules. - * Therefore, we define 4 APG groups. lsb is _PMD_USER, 2nd is _PAGE_ACCESSED - * 0x => No access => 11 (all accesses performed as user iaw page definition) - * 10 => No user => 01 (all accesses performed according to page definition) - * 11 => User => 00 (all accesses performed as supervisor iaw page definition) + * Therefore, we define 2 APG groups. lsb is _PMD_USER + * 0 => No user => 01 (all accesses performed according to page definition) + * 1 => User => 00 (all accesses performed as supervisor iaw page definition) * We define all 16 groups so that all other bits of APG can take any value */ -#ifdef CONFIG_SWAP -#define MD_APG_INIT 0xf4f4f4f4 -#else #define MD_APG_INIT 0x44444444 -#endif /* The effective page number register. When read, contains the information * about the last instruction TLB miss. When MD_RPN is written, bits in @@ -180,12 +164,6 @@ */ #define SPRN_M_TW 799 -/* APGs */ -#define M_APG0 0x00000000 -#define M_APG1 0x00000020 -#define M_APG2 0x00000040 -#define M_APG3 0x00000060 - #ifdef CONFIG_PPC_MM_SLICES #include <asm/nohash/32/slice.h> #define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1)) @@ -251,6 +229,15 @@ static inline unsigned int mmu_psize_to_shift(unsigned int mmu_psize) BUG(); } +/* patch sites */ +extern s32 patch__itlbmiss_linmem_top; +extern s32 patch__dtlbmiss_linmem_top, patch__dtlbmiss_immr_jmp; +extern s32 patch__fixupdar_linmem_top; + +extern s32 patch__itlbmiss_exit_1, patch__itlbmiss_exit_2; +extern s32 patch__dtlbmiss_exit_1, patch__dtlbmiss_exit_2, patch__dtlbmiss_exit_3; +extern s32 patch__itlbmiss_perf, patch__dtlbmiss_perf; + #endif /* !__ASSEMBLY__ */ #if defined(CONFIG_PPC_4K_PAGES) diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h index 6093bc8f74e5..a6e9e314c707 100644 --- a/arch/powerpc/include/asm/ppc-opcode.h +++ b/arch/powerpc/include/asm/ppc-opcode.h @@ -493,6 +493,8 @@ __PPC_RS(t) | __PPC_RA0(a) | __PPC_RB(b)) #define PPC_SLBFEE_DOT(t, b) stringify_in_c(.long PPC_INST_SLBFEE | \ __PPC_RT(t) | __PPC_RB(b)) +#define __PPC_SLBFEE_DOT(t, b) stringify_in_c(.long PPC_INST_SLBFEE | \ + ___PPC_RT(t) | ___PPC_RB(b)) #define PPC_ICBT(c,a,b) stringify_in_c(.long PPC_INST_ICBT | \ __PPC_CT(c) | __PPC_RA0(a) | __PPC_RB(b)) /* PASemi instructions */ diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h index f73886a1a7f5..0b8a735b6d85 100644 --- a/arch/powerpc/include/asm/ptrace.h +++ b/arch/powerpc/include/asm/ptrace.h @@ -54,6 +54,7 @@ struct pt_regs #ifdef CONFIG_PPC64 unsigned long ppr; + unsigned long __pad; /* Maintain 16 byte interrupt stack alignment */ #endif }; #endif diff --git a/arch/powerpc/include/asm/rtas.h b/arch/powerpc/include/asm/rtas.h index bb38dd67d47d..1b06add4f092 100644 --- a/arch/powerpc/include/asm/rtas.h +++ b/arch/powerpc/include/asm/rtas.h @@ -5,6 +5,7 @@ #include <linux/spinlock.h> #include <asm/page.h> #include <linux/time.h> +#include <linux/cpumask.h> /* * Definitions for talking to the RTAS on CHRP machines. diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 134a573a9f2d..3b67b9533c82 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -31,6 +31,7 @@ #include <asm/asm-offsets.h> #include <asm/ptrace.h> #include <asm/export.h> +#include <asm/code-patching-asm.h> #if CONFIG_TASK_SIZE <= 0x80000000 && CONFIG_PAGE_OFFSET >= 0x80000000 /* By simply checking Address >= 0x80000000, we know if its a kernel address */ @@ -318,8 +319,8 @@ InstructionTLBMiss: cmpli cr0, r11, PAGE_OFFSET@h #ifndef CONFIG_PIN_TLB_TEXT /* It is assumed that kernel code fits into the first 8M page */ -_ENTRY(ITLBMiss_cmp) - cmpli cr7, r11, (PAGE_OFFSET + 0x0800000)@h +0: cmpli cr7, r11, (PAGE_OFFSET + 0x0800000)@h + patch_site 0b, patch__itlbmiss_linmem_top #endif #endif #endif @@ -353,13 +354,14 @@ _ENTRY(ITLBMiss_cmp) #if defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE) mtcr r12 #endif - -#ifdef CONFIG_SWAP - rlwinm r11, r10, 31, _PAGE_ACCESSED >> 1 -#endif /* Load the MI_TWC with the attributes for this "segment." */ mtspr SPRN_MI_TWC, r11 /* Set segment attributes */ +#ifdef CONFIG_SWAP + rlwinm r11, r10, 32-5, _PAGE_PRESENT + and r11, r11, r10 + rlwimi r10, r11, 0, _PAGE_PRESENT +#endif li r11, RPN_PATTERN | 0x200 /* The Linux PTE won't go exactly into the MMU TLB. * Software indicator bits 20 and 23 must be clear. @@ -372,16 +374,17 @@ _ENTRY(ITLBMiss_cmp) mtspr SPRN_MI_RPN, r10 /* Update TLB entry */ /* Restore registers */ -_ENTRY(itlb_miss_exit_1) - mfspr r10, SPRN_SPRG_SCRATCH0 +0: mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 #if defined(ITLB_MISS_KERNEL) || defined(CONFIG_HUGETLB_PAGE) mfspr r12, SPRN_SPRG_SCRATCH2 #endif rfi + patch_site 0b, patch__itlbmiss_exit_1 + #ifdef CONFIG_PERF_EVENTS -_ENTRY(itlb_miss_perf) - lis r10, (itlb_miss_counter - PAGE_OFFSET)@ha + patch_site 0f, patch__itlbmiss_perf +0: lis r10, (itlb_miss_counter - PAGE_OFFSET)@ha lwz r11, (itlb_miss_counter - PAGE_OFFSET)@l(r10) addi r11, r11, 1 stw r11, (itlb_miss_counter - PAGE_OFFSET)@l(r10) @@ -435,11 +438,11 @@ DataStoreTLBMiss: #ifndef CONFIG_PIN_TLB_IMMR cmpli cr0, r11, VIRT_IMMR_BASE@h #endif -_ENTRY(DTLBMiss_cmp) - cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h +0: cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h + patch_site 0b, patch__dtlbmiss_linmem_top #ifndef CONFIG_PIN_TLB_IMMR -_ENTRY(DTLBMiss_jmp) - beq- DTLBMissIMMR +0: beq- DTLBMissIMMR + patch_site 0b, patch__dtlbmiss_immr_jmp #endif blt cr7, DTLBMissLinear lis r11, (swapper_pg_dir-PAGE_OFFSET)@ha @@ -470,14 +473,22 @@ _ENTRY(DTLBMiss_jmp) * above. */ rlwimi r11, r10, 0, _PAGE_GUARDED -#ifdef CONFIG_SWAP - /* _PAGE_ACCESSED has to be set. We use second APG bit for that, 0 - * on that bit will represent a Non Access group - */ - rlwinm r11, r10, 31, _PAGE_ACCESSED >> 1 -#endif mtspr SPRN_MD_TWC, r11 + /* Both _PAGE_ACCESSED and _PAGE_PRESENT has to be set. + * We also need to know if the insn is a load/store, so: + * Clear _PAGE_PRESENT and load that which will + * trap into DTLB Error with store bit set accordinly. + */ + /* PRESENT=0x1, ACCESSED=0x20 + * r11 = ((r10 & PRESENT) & ((r10 & ACCESSED) >> 5)); + * r10 = (r10 & ~PRESENT) | r11; + */ +#ifdef CONFIG_SWAP + rlwinm r11, r10, 32-5, _PAGE_PRESENT + and r11, r11, r10 + rlwimi r10, r11, 0, _PAGE_PRESENT +#endif /* The Linux PTE won't go exactly into the MMU TLB. * Software indicator bits 24, 25, 26, and 27 must be * set. All other Linux PTE bits control the behavior @@ -489,14 +500,16 @@ _ENTRY(DTLBMiss_jmp) /* Restore registers */ mtspr SPRN_DAR, r11 /* Tag DAR */ -_ENTRY(dtlb_miss_exit_1) - mfspr r10, SPRN_SPRG_SCRATCH0 + +0: mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 mfspr r12, SPRN_SPRG_SCRATCH2 rfi + patch_site 0b, patch__dtlbmiss_exit_1 + #ifdef CONFIG_PERF_EVENTS -_ENTRY(dtlb_miss_perf) - lis r10, (dtlb_miss_counter - PAGE_OFFSET)@ha + patch_site 0f, patch__dtlbmiss_perf +0: lis r10, (dtlb_miss_counter - PAGE_OFFSET)@ha lwz r11, (dtlb_miss_counter - PAGE_OFFSET)@l(r10) addi r11, r11, 1 stw r11, (dtlb_miss_counter - PAGE_OFFSET)@l(r10) @@ -637,8 +650,8 @@ InstructionBreakpoint: */ DTLBMissIMMR: mtcr r12 - /* Set 512k byte guarded page and mark it valid and accessed */ - li r10, MD_PS512K | MD_GUARDED | MD_SVALID | M_APG2 + /* Set 512k byte guarded page and mark it valid */ + li r10, MD_PS512K | MD_GUARDED | MD_SVALID mtspr SPRN_MD_TWC, r10 mfspr r10, SPRN_IMMR /* Get current IMMR */ rlwinm r10, r10, 0, 0xfff80000 /* Get 512 kbytes boundary */ @@ -648,16 +661,17 @@ DTLBMissIMMR: li r11, RPN_PATTERN mtspr SPRN_DAR, r11 /* Tag DAR */ -_ENTRY(dtlb_miss_exit_2) - mfspr r10, SPRN_SPRG_SCRATCH0 + +0: mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 mfspr r12, SPRN_SPRG_SCRATCH2 rfi + patch_site 0b, patch__dtlbmiss_exit_2 DTLBMissLinear: mtcr r12 - /* Set 8M byte page and mark it valid and accessed */ - li r11, MD_PS8MEG | MD_SVALID | M_APG2 + /* Set 8M byte page and mark it valid */ + li r11, MD_PS8MEG | MD_SVALID mtspr SPRN_MD_TWC, r11 rlwinm r10, r10, 0, 0x0f800000 /* 8xx supports max 256Mb RAM */ ori r10, r10, 0xf0 | MD_SPS16K | _PAGE_SH | _PAGE_DIRTY | \ @@ -666,28 +680,29 @@ DTLBMissLinear: li r11, RPN_PATTERN mtspr SPRN_DAR, r11 /* Tag DAR */ -_ENTRY(dtlb_miss_exit_3) - mfspr r10, SPRN_SPRG_SCRATCH0 + +0: mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 mfspr r12, SPRN_SPRG_SCRATCH2 rfi + patch_site 0b, patch__dtlbmiss_exit_3 #ifndef CONFIG_PIN_TLB_TEXT ITLBMissLinear: mtcr r12 - /* Set 8M byte page and mark it valid,accessed */ - li r11, MI_PS8MEG | MI_SVALID | M_APG2 + /* Set 8M byte page and mark it valid */ + li r11, MI_PS8MEG | MI_SVALID mtspr SPRN_MI_TWC, r11 rlwinm r10, r10, 0, 0x0f800000 /* 8xx supports max 256Mb RAM */ ori r10, r10, 0xf0 | MI_SPS16K | _PAGE_SH | _PAGE_DIRTY | \ _PAGE_PRESENT mtspr SPRN_MI_RPN, r10 /* Update TLB entry */ -_ENTRY(itlb_miss_exit_2) - mfspr r10, SPRN_SPRG_SCRATCH0 +0: mfspr r10, SPRN_SPRG_SCRATCH0 mfspr r11, SPRN_SPRG_SCRATCH1 mfspr r12, SPRN_SPRG_SCRATCH2 rfi + patch_site 0b, patch__itlbmiss_exit_2 #endif /* This is the procedure to calculate the data EA for buggy dcbx,dcbi instructions @@ -705,8 +720,10 @@ FixupDAR:/* Entry point for dcbx workaround. */ mfspr r11, SPRN_M_TW /* Get level 1 table */ blt+ 3f rlwinm r11, r10, 16, 0xfff8 -_ENTRY(FixupDAR_cmp) - cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h + +0: cmpli cr7, r11, (PAGE_OFFSET + 0x1800000)@h + patch_site 0b, patch__fixupdar_linmem_top + /* create physical page address from effective address */ tophys(r11, r10) blt- cr7, 201f @@ -960,7 +977,7 @@ initial_mmu: ori r8, r8, MI_EVALID /* Mark it valid */ mtspr SPRN_MI_EPN, r8 li r8, MI_PS8MEG /* Set 8M byte page */ - ori r8, r8, MI_SVALID | M_APG2 /* Make it valid, APG 2 */ + ori r8, r8, MI_SVALID /* Make it valid */ mtspr SPRN_MI_TWC, r8 li r8, MI_BOOTINIT /* Create RPN for address 0 */ mtspr SPRN_MI_RPN, r8 /* Store TLB entry */ @@ -987,7 +1004,7 @@ initial_mmu: ori r8, r8, MD_EVALID /* Mark it valid */ mtspr SPRN_MD_EPN, r8 li r8, MD_PS512K | MD_GUARDED /* Set 512k byte page */ - ori r8, r8, MD_SVALID | M_APG2 /* Make it valid and accessed */ + ori r8, r8, MD_SVALID /* Make it valid */ mtspr SPRN_MD_TWC, r8 mr r8, r9 /* Create paddr for TLB */ ori r8, r8, MI_BOOTINIT|0x2 /* Inhibit cache -- Cort */ diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 4d5322cfad25..96f34730010f 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -590,12 +590,11 @@ void flush_all_to_thread(struct task_struct *tsk) if (tsk->thread.regs) { preempt_disable(); BUG_ON(tsk != current); - save_all(tsk); - #ifdef CONFIG_SPE if (tsk->thread.regs->msr & MSR_SPE) tsk->thread.spefscr = mfspr(SPRN_SPEFSCR); #endif + save_all(tsk); preempt_enable(); } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 2a51e4cc8246..236c1151a3a7 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -636,6 +636,8 @@ static void *__init alloc_stack(unsigned long limit, int cpu) { unsigned long pa; + BUILD_BUG_ON(STACK_INT_FRAME_SIZE % 16); + pa = memblock_alloc_base_nid(THREAD_SIZE, THREAD_SIZE, limit, early_cpu_to_node(cpu), MEMBLOCK_NONE); if (!pa) { diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index bf8def2159c3..d65b961661fb 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2337,8 +2337,7 @@ static void kvmppc_set_timer(struct kvm_vcpu *vcpu) kvmppc_core_prepare_to_enter(vcpu); return; } - dec_nsec = (vcpu->arch.dec_expires - now) * NSEC_PER_SEC - / tb_ticks_per_sec; + dec_nsec = tb_to_ns(vcpu->arch.dec_expires - now); hrtimer_start(&vcpu->arch.dec_timer, dec_nsec, HRTIMER_MODE_REL); vcpu->arch.timer_running = 1; } diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c index fa888bfc347e..9f5b8c01c4e1 100644 --- a/arch/powerpc/kvm/emulate.c +++ b/arch/powerpc/kvm/emulate.c @@ -61,11 +61,10 @@ void kvmppc_emulate_dec(struct kvm_vcpu *vcpu) dec_time = vcpu->arch.dec; /* - * Guest timebase ticks at the same frequency as host decrementer. - * So use the host decrementer calculations for decrementer emulation. + * Guest timebase ticks at the same frequency as host timebase. + * So use the host timebase calculations for decrementer emulation. */ - dec_time = dec_time << decrementer_clockevent.shift; - do_div(dec_time, decrementer_clockevent.mult); + dec_time = tb_to_ns(dec_time); dec_nsec = do_div(dec_time, NSEC_PER_SEC); hrtimer_start(&vcpu->arch.dec_timer, ktime_set(dec_time, dec_nsec), HRTIMER_MODE_REL); diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h index 491b0f715d6b..ea1d7c808319 100644 --- a/arch/powerpc/kvm/trace.h +++ b/arch/powerpc/kvm/trace.h @@ -6,8 +6,6 @@ #undef TRACE_SYSTEM #define TRACE_SYSTEM kvm -#define TRACE_INCLUDE_PATH . -#define TRACE_INCLUDE_FILE trace /* * Tracepoint for guest mode entry. @@ -120,4 +118,10 @@ TRACE_EVENT(kvm_check_requests, #endif /* _TRACE_KVM_H */ /* This part must be outside protection */ +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE + +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE trace + #include <trace/define_trace.h> diff --git a/arch/powerpc/kvm/trace_booke.h b/arch/powerpc/kvm/trace_booke.h index ac640e81fdc5..3837842986aa 100644 --- a/arch/powerpc/kvm/trace_booke.h +++ b/arch/powerpc/kvm/trace_booke.h @@ -6,8 +6,6 @@ #undef TRACE_SYSTEM #define TRACE_SYSTEM kvm_booke -#define TRACE_INCLUDE_PATH . -#define TRACE_INCLUDE_FILE trace_booke #define kvm_trace_symbol_exit \ {0, "CRITICAL"}, \ @@ -218,4 +216,11 @@ TRACE_EVENT(kvm_booke_queue_irqprio, #endif /* This part must be outside protection */ + +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE + +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE trace_booke + #include <trace/define_trace.h> diff --git a/arch/powerpc/kvm/trace_hv.h b/arch/powerpc/kvm/trace_hv.h index bcfe8a987f6a..8a1e3b0047f1 100644 --- a/arch/powerpc/kvm/trace_hv.h +++ b/arch/powerpc/kvm/trace_hv.h @@ -9,8 +9,6 @@ #undef TRACE_SYSTEM #define TRACE_SYSTEM kvm_hv -#define TRACE_INCLUDE_PATH . -#define TRACE_INCLUDE_FILE trace_hv #define kvm_trace_symbol_hcall \ {H_REMOVE, "H_REMOVE"}, \ @@ -497,4 +495,11 @@ TRACE_EVENT(kvmppc_run_vcpu_exit, #endif /* _TRACE_KVM_HV_H */ /* This part must be outside protection */ + +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE + +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE trace_hv + #include <trace/define_trace.h> diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h index 2f9a8829552b..46a46d328fbf 100644 --- a/arch/powerpc/kvm/trace_pr.h +++ b/arch/powerpc/kvm/trace_pr.h @@ -8,8 +8,6 @@ #undef TRACE_SYSTEM #define TRACE_SYSTEM kvm_pr -#define TRACE_INCLUDE_PATH . -#define TRACE_INCLUDE_FILE trace_pr TRACE_EVENT(kvm_book3s_reenter, TP_PROTO(int r, struct kvm_vcpu *vcpu), @@ -257,4 +255,11 @@ TRACE_EVENT(kvm_exit, #endif /* _TRACE_KVM_H */ /* This part must be outside protection */ + +#undef TRACE_INCLUDE_PATH +#undef TRACE_INCLUDE_FILE + +#define TRACE_INCLUDE_PATH . +#define TRACE_INCLUDE_FILE trace_pr + #include <trace/define_trace.h> diff --git a/arch/powerpc/mm/8xx_mmu.c b/arch/powerpc/mm/8xx_mmu.c index 36484a2ef915..01b7f5107c3a 100644 --- a/arch/powerpc/mm/8xx_mmu.c +++ b/arch/powerpc/mm/8xx_mmu.c @@ -13,6 +13,7 @@ */ #include <linux/memblock.h> +#include <linux/mmu_context.h> #include <asm/fixmap.h> #include <asm/code-patching.h> @@ -79,7 +80,7 @@ void __init MMU_init_hw(void) for (; i < 32 && mem >= LARGE_PAGE_SIZE_8M; i++) { mtspr(SPRN_MD_CTR, ctr | (i << 8)); mtspr(SPRN_MD_EPN, (unsigned long)__va(addr) | MD_EVALID); - mtspr(SPRN_MD_TWC, MD_PS8MEG | MD_SVALID | M_APG2); + mtspr(SPRN_MD_TWC, MD_PS8MEG | MD_SVALID); mtspr(SPRN_MD_RPN, addr | flags | _PAGE_PRESENT); addr += LARGE_PAGE_SIZE_8M; mem -= LARGE_PAGE_SIZE_8M; @@ -97,22 +98,13 @@ static void __init mmu_mapin_immr(void) map_kernel_page(v + offset, p + offset, PAGE_KERNEL_NCG); } -/* Address of instructions to patch */ -#ifndef CONFIG_PIN_TLB_IMMR -extern unsigned int DTLBMiss_jmp; -#endif -extern unsigned int DTLBMiss_cmp, FixupDAR_cmp; -#ifndef CONFIG_PIN_TLB_TEXT -extern unsigned int ITLBMiss_cmp; -#endif - -static void __init mmu_patch_cmp_limit(unsigned int *addr, unsigned long mapped) +static void __init mmu_patch_cmp_limit(s32 *site, unsigned long mapped) { - unsigned int instr = *addr; + unsigned int instr = *(unsigned int *)patch_site_addr(site); instr &= 0xffff0000; instr |= (unsigned long)__va(mapped) >> 16; - patch_instruction(addr, instr); + patch_instruction_site(site, instr); } unsigned long __init mmu_mapin_ram(unsigned long top) @@ -123,17 +115,17 @@ unsigned long __init mmu_mapin_ram(unsigned long top) mapped = 0; mmu_mapin_immr(); #ifndef CONFIG_PIN_TLB_IMMR - patch_instruction(&DTLBMiss_jmp, PPC_INST_NOP); + patch_instruction_site(&patch__dtlbmiss_immr_jmp, PPC_INST_NOP); #endif #ifndef CONFIG_PIN_TLB_TEXT - mmu_patch_cmp_limit(&ITLBMiss_cmp, 0); + mmu_patch_cmp_limit(&patch__itlbmiss_linmem_top, 0); #endif } else { mapped = top & ~(LARGE_PAGE_SIZE_8M - 1); } - mmu_patch_cmp_limit(&DTLBMiss_cmp, mapped); - mmu_patch_cmp_limit(&FixupDAR_cmp, mapped); + mmu_patch_cmp_limit(&patch__dtlbmiss_linmem_top, mapped); + mmu_patch_cmp_limit(&patch__fixupdar_linmem_top, mapped); /* If the size of RAM is not an exact power of two, we may not * have covered RAM in its entirety with 8 MiB diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 3a048e98a132..ce28ae5ca080 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -1178,7 +1178,7 @@ static long vphn_get_associativity(unsigned long cpu, switch (rc) { case H_FUNCTION: - printk(KERN_INFO + printk_once(KERN_INFO "VPHN is not supported. Disabling polling...\n"); stop_topology_update(); break; diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index c3fdf2969d9f..bc3914d54e26 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -19,6 +19,7 @@ #include <asm/mmu.h> #include <asm/mmu_context.h> #include <asm/paca.h> +#include <asm/ppc-opcode.h> #include <asm/cputable.h> #include <asm/cacheflush.h> #include <asm/smp.h> @@ -58,27 +59,19 @@ static inline unsigned long mk_vsid_data(unsigned long ea, int ssize, return __mk_vsid_data(get_kernel_vsid(ea, ssize), ssize, flags); } -static void assert_slb_exists(unsigned long ea) +static void assert_slb_presence(bool present, unsigned long ea) { #ifdef CONFIG_DEBUG_VM unsigned long tmp; WARN_ON_ONCE(mfmsr() & MSR_EE); - asm volatile("slbfee. %0, %1" : "=r"(tmp) : "r"(ea) : "cr0"); - WARN_ON(tmp == 0); -#endif -} - -static void assert_slb_notexists(unsigned long ea) -{ -#ifdef CONFIG_DEBUG_VM - unsigned long tmp; + if (!cpu_has_feature(CPU_FTR_ARCH_206)) + return; - WARN_ON_ONCE(mfmsr() & MSR_EE); + asm volatile(__PPC_SLBFEE_DOT(%0, %1) : "=r"(tmp) : "r"(ea) : "cr0"); - asm volatile("slbfee. %0, %1" : "=r"(tmp) : "r"(ea) : "cr0"); - WARN_ON(tmp != 0); + WARN_ON(present == (tmp == 0)); #endif } @@ -114,7 +107,7 @@ static inline void create_shadowed_slbe(unsigned long ea, int ssize, */ slb_shadow_update(ea, ssize, flags, index); - assert_slb_notexists(ea); + assert_slb_presence(false, ea); asm volatile("slbmte %0,%1" : : "r" (mk_vsid_data(ea, ssize, flags)), "r" (mk_esid_data(ea, ssize, index)) @@ -137,7 +130,7 @@ void __slb_restore_bolted_realmode(void) "r" (be64_to_cpu(p->save_area[index].esid))); } - assert_slb_exists(local_paca->kstack); + assert_slb_presence(true, local_paca->kstack); } /* @@ -185,7 +178,7 @@ void slb_flush_and_restore_bolted(void) :: "r" (be64_to_cpu(p->save_area[KSTACK_INDEX].vsid)), "r" (be64_to_cpu(p->save_area[KSTACK_INDEX].esid)) : "memory"); - assert_slb_exists(get_paca()->kstack); + assert_slb_presence(true, get_paca()->kstack); get_paca()->slb_cache_ptr = 0; @@ -443,9 +436,9 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm) ea = (unsigned long) get_paca()->slb_cache[i] << SID_SHIFT; /* - * Could assert_slb_exists here, but hypervisor - * or machine check could have come in and - * removed the entry at this point. + * Could assert_slb_presence(true) here, but + * hypervisor or machine check could have come + * in and removed the entry at this point. */ slbie_data = ea; @@ -676,7 +669,7 @@ static long slb_insert_entry(unsigned long ea, unsigned long context, * User preloads should add isync afterwards in case the kernel * accesses user memory before it returns to userspace with rfid. */ - assert_slb_notexists(ea); + assert_slb_presence(false, ea); asm volatile("slbmte %0, %1" : : "r" (vsid_data), "r" (esid_data)); barrier(); @@ -715,7 +708,7 @@ static long slb_allocate_kernel(unsigned long ea, unsigned long id) return -EFAULT; if (ea < H_VMALLOC_END) - flags = get_paca()->vmalloc_sllp; + flags = local_paca->vmalloc_sllp; else flags = SLB_VSID_KERNEL | mmu_psize_defs[mmu_io_psize].sllp; } else { diff --git a/arch/powerpc/perf/8xx-pmu.c b/arch/powerpc/perf/8xx-pmu.c index 6c0020d1c561..e38f74e9e7a4 100644 --- a/arch/powerpc/perf/8xx-pmu.c +++ b/arch/powerpc/perf/8xx-pmu.c @@ -31,9 +31,6 @@ extern unsigned long itlb_miss_counter, dtlb_miss_counter; extern atomic_t instruction_counter; -extern unsigned int itlb_miss_perf, dtlb_miss_perf; -extern unsigned int itlb_miss_exit_1, itlb_miss_exit_2; -extern unsigned int dtlb_miss_exit_1, dtlb_miss_exit_2, dtlb_miss_exit_3; static atomic_t insn_ctr_ref; static atomic_t itlb_miss_ref; @@ -103,22 +100,22 @@ static int mpc8xx_pmu_add(struct perf_event *event, int flags) break; case PERF_8xx_ID_ITLB_LOAD_MISS: if (atomic_inc_return(&itlb_miss_ref) == 1) { - unsigned long target = (unsigned long)&itlb_miss_perf; + unsigned long target = patch_site_addr(&patch__itlbmiss_perf); - patch_branch(&itlb_miss_exit_1, target, 0); + patch_branch_site(&patch__itlbmiss_exit_1, target, 0); #ifndef CONFIG_PIN_TLB_TEXT - patch_branch(&itlb_miss_exit_2, target, 0); + patch_branch_site(&patch__itlbmiss_exit_2, target, 0); #endif } val = itlb_miss_counter; break; case PERF_8xx_ID_DTLB_LOAD_MISS: if (atomic_inc_return(&dtlb_miss_ref) == 1) { - unsigned long target = (unsigned long)&dtlb_miss_perf; + unsigned long target = patch_site_addr(&patch__dtlbmiss_perf); - patch_branch(&dtlb_miss_exit_1, target, 0); - patch_branch(&dtlb_miss_exit_2, target, 0); - patch_branch(&dtlb_miss_exit_3, target, 0); + patch_branch_site(&patch__dtlbmiss_exit_1, target, 0); + patch_branch_site(&patch__dtlbmiss_exit_2, target, 0); + patch_branch_site(&patch__dtlbmiss_exit_3, target, 0); } val = dtlb_miss_counter; break; @@ -180,17 +177,17 @@ static void mpc8xx_pmu_del(struct perf_event *event, int flags) break; case PERF_8xx_ID_ITLB_LOAD_MISS: if (atomic_dec_return(&itlb_miss_ref) == 0) { - patch_instruction(&itlb_miss_exit_1, insn); + patch_instruction_site(&patch__itlbmiss_exit_1, insn); #ifndef CONFIG_PIN_TLB_TEXT - patch_instruction(&itlb_miss_exit_2, insn); + patch_instruction_site(&patch__itlbmiss_exit_2, insn); #endif } break; case PERF_8xx_ID_DTLB_LOAD_MISS: if (atomic_dec_return(&dtlb_miss_ref) == 0) { - patch_instruction(&dtlb_miss_exit_1, insn); - patch_instruction(&dtlb_miss_exit_2, insn); - patch_instruction(&dtlb_miss_exit_3, insn); + patch_instruction_site(&patch__dtlbmiss_exit_1, insn); + patch_instruction_site(&patch__dtlbmiss_exit_2, insn); + patch_instruction_site(&patch__dtlbmiss_exit_3, insn); } break; } diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig index 2a9d66254ffc..5326ece36120 100644 --- a/arch/powerpc/platforms/40x/Kconfig +++ b/arch/powerpc/platforms/40x/Kconfig @@ -29,6 +29,7 @@ config KILAUEA select 405EX select PPC40x_SIMPLE select PPC4xx_PCI_EXPRESS + select PCI select PCI_MSI select PPC4xx_MSI help diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig index f024efd5a4c2..9a85d350b1b6 100644 --- a/arch/powerpc/platforms/44x/Kconfig +++ b/arch/powerpc/platforms/44x/Kconfig @@ -21,6 +21,7 @@ config BLUESTONE depends on 44x select PPC44x_SIMPLE select APM821xx + select PCI select PCI_MSI select PPC4xx_MSI select PPC4xx_PCI_EXPRESS @@ -200,6 +201,7 @@ config AKEBONO select SWIOTLB select 476FPE select PPC4xx_PCI_EXPRESS + select PCI select PCI_MSI select PPC4xx_HSTA_MSI select I2C diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c index 6f60e0931922..75b935252981 100644 --- a/arch/powerpc/platforms/powernv/npu-dma.c +++ b/arch/powerpc/platforms/powernv/npu-dma.c @@ -102,63 +102,6 @@ struct pci_dev *pnv_pci_get_npu_dev(struct pci_dev *gpdev, int index) } EXPORT_SYMBOL(pnv_pci_get_npu_dev); -#define NPU_DMA_OP_UNSUPPORTED() \ - dev_err_once(dev, "%s operation unsupported for NVLink devices\n", \ - __func__) - -static void *dma_npu_alloc(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag, - unsigned long attrs) -{ - NPU_DMA_OP_UNSUPPORTED(); - return NULL; -} - -static void dma_npu_free(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle, - unsigned long attrs) -{ - NPU_DMA_OP_UNSUPPORTED(); -} - -static dma_addr_t dma_npu_map_page(struct device *dev, struct page *page, - unsigned long offset, size_t size, - enum dma_data_direction direction, - unsigned long attrs) -{ - NPU_DMA_OP_UNSUPPORTED(); - return 0; -} - -static int dma_npu_map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, enum dma_data_direction direction, - unsigned long attrs) -{ - NPU_DMA_OP_UNSUPPORTED(); - return 0; -} - -static int dma_npu_dma_supported(struct device *dev, u64 mask) -{ - NPU_DMA_OP_UNSUPPORTED(); - return 0; -} - -static u64 dma_npu_get_required_mask(struct device *dev) -{ - NPU_DMA_OP_UNSUPPORTED(); - return 0; -} - -static const struct dma_map_ops dma_npu_ops = { - .map_page = dma_npu_map_page, - .map_sg = dma_npu_map_sg, - .alloc = dma_npu_alloc, - .free = dma_npu_free, - .dma_supported = dma_npu_dma_supported, - .get_required_mask = dma_npu_get_required_mask, -}; - /* * Returns the PE assoicated with the PCI device of the given * NPU. Returns the linked pci device if pci_dev != NULL. @@ -270,10 +213,11 @@ static void pnv_npu_dma_set_32(struct pnv_ioda_pe *npe) rc = pnv_npu_set_window(npe, 0, gpe->table_group.tables[0]); /* - * We don't initialise npu_pe->tce32_table as we always use - * dma_npu_ops which are nops. + * NVLink devices use the same TCE table configuration as + * their parent device so drivers shouldn't be doing DMA + * operations directly on these devices. */ - set_dma_ops(&npe->pdev->dev, &dma_npu_ops); + set_dma_ops(&npe->pdev->dev, NULL); } /* diff --git a/arch/powerpc/platforms/pseries/lparcfg.c b/arch/powerpc/platforms/pseries/lparcfg.c index 8bd590af488a..794487313cc8 100644 --- a/arch/powerpc/platforms/pseries/lparcfg.c +++ b/arch/powerpc/platforms/pseries/lparcfg.c @@ -26,6 +26,7 @@ #include <linux/seq_file.h> #include <linux/slab.h> #include <linux/uaccess.h> +#include <linux/hugetlb.h> #include <asm/lppaca.h> #include <asm/hvcall.h> #include <asm/firmware.h> @@ -36,6 +37,7 @@ #include <asm/vio.h> #include <asm/mmu.h> #include <asm/machdep.h> +#include <asm/drmem.h> #include "pseries.h" @@ -433,6 +435,16 @@ static void parse_em_data(struct seq_file *m) seq_printf(m, "power_mode_data=%016lx\n", retbuf[0]); } +static void maxmem_data(struct seq_file *m) +{ + unsigned long maxmem = 0; + + maxmem += drmem_info->n_lmbs * drmem_info->lmb_size; + maxmem += hugetlb_total_pages() * PAGE_SIZE; + + seq_printf(m, "MaxMem=%ld\n", maxmem); +} + static int pseries_lparcfg_data(struct seq_file *m, void *v) { int partition_potential_processors; @@ -491,6 +503,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v) seq_printf(m, "slb_size=%d\n", mmu_slb_size); #endif parse_em_data(m); + maxmem_data(m); return 0; } diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile index 69e7fb47bcaa..878f9c1d3615 100644 --- a/arch/powerpc/xmon/Makefile +++ b/arch/powerpc/xmon/Makefile @@ -11,6 +11,12 @@ UBSAN_SANITIZE := n ORIG_CFLAGS := $(KBUILD_CFLAGS) KBUILD_CFLAGS = $(subst $(CC_FLAGS_FTRACE),,$(ORIG_CFLAGS)) +ifdef CONFIG_CC_IS_CLANG +# clang stores addresses on the stack causing the frame size to blow +# out. See https://github.com/ClangBuiltLinux/linux/issues/252 +KBUILD_CFLAGS += -Wframe-larger-than=4096 +endif + ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC) obj-y += xmon.o nonstdio.o spr_access.o diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index d10146197533..4b594f2e4f7e 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -71,10 +71,27 @@ KBUILD_CFLAGS += $(call cc-option,-mstrict-align) # arch specific predefines for sparse CHECKFLAGS += -D__riscv -D__riscv_xlen=$(BITS) +# Default target when executing plain make +boot := arch/riscv/boot +KBUILD_IMAGE := $(boot)/Image.gz + head-y := arch/riscv/kernel/head.o core-y += arch/riscv/kernel/ arch/riscv/mm/ libs-y += arch/riscv/lib/ -all: vmlinux +PHONY += vdso_install +vdso_install: + $(Q)$(MAKE) $(build)=arch/riscv/kernel/vdso $@ + +all: Image.gz + +Image: vmlinux + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +Image.%: Image + $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ + +zinstall install: + $(Q)$(MAKE) $(build)=$(boot) $@ diff --git a/arch/riscv/boot/.gitignore b/arch/riscv/boot/.gitignore new file mode 100644 index 000000000000..8dab0bb6ae66 --- /dev/null +++ b/arch/riscv/boot/.gitignore @@ -0,0 +1,2 @@ +Image +Image.gz diff --git a/arch/riscv/boot/Makefile b/arch/riscv/boot/Makefile new file mode 100644 index 000000000000..0990a9fdbe5d --- /dev/null +++ b/arch/riscv/boot/Makefile @@ -0,0 +1,33 @@ +# +# arch/riscv/boot/Makefile +# +# This file is included by the global makefile so that you can add your own +# architecture-specific flags and dependencies. +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# Copyright (C) 2018, Anup Patel. +# Author: Anup Patel <anup@brainfault.org> +# +# Based on the ia64 and arm64 boot/Makefile. +# + +OBJCOPYFLAGS_Image :=-O binary -R .note -R .note.gnu.build-id -R .comment -S + +targets := Image + +$(obj)/Image: vmlinux FORCE + $(call if_changed,objcopy) + +$(obj)/Image.gz: $(obj)/Image FORCE + $(call if_changed,gzip) + +install: + $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \ + $(obj)/Image System.map "$(INSTALL_PATH)" + +zinstall: + $(CONFIG_SHELL) $(srctree)/$(src)/install.sh $(KERNELRELEASE) \ + $(obj)/Image.gz System.map "$(INSTALL_PATH)" diff --git a/arch/riscv/boot/install.sh b/arch/riscv/boot/install.sh new file mode 100644 index 000000000000..18c39159c0ff --- /dev/null +++ b/arch/riscv/boot/install.sh @@ -0,0 +1,60 @@ +#!/bin/sh +# +# arch/riscv/boot/install.sh +# +# This file is subject to the terms and conditions of the GNU General Public +# License. See the file "COPYING" in the main directory of this archive +# for more details. +# +# Copyright (C) 1995 by Linus Torvalds +# +# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin +# Adapted from code in arch/i386/boot/install.sh by Russell King +# +# "make install" script for the RISC-V Linux port +# +# Arguments: +# $1 - kernel version +# $2 - kernel image file +# $3 - kernel map file +# $4 - default install path (blank if root directory) +# + +verify () { + if [ ! -f "$1" ]; then + echo "" 1>&2 + echo " *** Missing file: $1" 1>&2 + echo ' *** You need to run "make" before "make install".' 1>&2 + echo "" 1>&2 + exit 1 + fi +} + +# Make sure the files actually exist +verify "$2" +verify "$3" + +# User may have a custom install script +if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi +if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi + +if [ "$(basename $2)" = "Image.gz" ]; then +# Compressed install + echo "Installing compressed kernel" + base=vmlinuz +else +# Normal install + echo "Installing normal kernel" + base=vmlinux +fi + +if [ -f $4/$base-$1 ]; then + mv $4/$base-$1 $4/$base-$1.old +fi +cat $2 > $4/$base-$1 + +# Install system map file +if [ -f $4/System.map-$1 ]; then + mv $4/System.map-$1 $4/System.map-$1.old +fi +cp $3 $4/System.map-$1 diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index 36473d7dbaac..ef4f15df9adf 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -1,6 +1,3 @@ -CONFIG_SMP=y -CONFIG_PCI=y -CONFIG_PCIE_XILINX=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_IKCONFIG=y @@ -11,10 +8,15 @@ CONFIG_CFS_BANDWIDTH=y CONFIG_CGROUP_BPF=y CONFIG_NAMESPACES=y CONFIG_USER_NS=y +CONFIG_CHECKPOINT_RESTORE=y CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y -CONFIG_CHECKPOINT_RESTORE=y CONFIG_BPF_SYSCALL=y +CONFIG_SMP=y +CONFIG_PCI=y +CONFIG_PCIE_XILINX=y +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y @@ -59,6 +61,7 @@ CONFIG_USB_OHCI_HCD_PLATFORM=y CONFIG_USB_STORAGE=y CONFIG_USB_UAS=y CONFIG_VIRTIO_MMIO=y +CONFIG_SIFIVE_PLIC=y CONFIG_RAS=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y @@ -72,8 +75,6 @@ CONFIG_NFS_V4=y CONFIG_NFS_V4_1=y CONFIG_NFS_V4_2=y CONFIG_ROOT_NFS=y -# CONFIG_RCU_TRACE is not set CONFIG_CRYPTO_USER_API_HASH=y -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -CONFIG_SIFIVE_PLIC=y +CONFIG_PRINTK_TIME=y +# CONFIG_RCU_TRACE is not set diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h index 349df33808c4..cd2af4b013e3 100644 --- a/arch/riscv/include/asm/module.h +++ b/arch/riscv/include/asm/module.h @@ -8,6 +8,7 @@ #define MODULE_ARCH_VERMAGIC "riscv" +struct module; u64 module_emit_got_entry(struct module *mod, u64 val); u64 module_emit_plt_entry(struct module *mod, u64 val); diff --git a/arch/riscv/include/asm/ptrace.h b/arch/riscv/include/asm/ptrace.h index 2c5df945d43c..bbe1862e8f80 100644 --- a/arch/riscv/include/asm/ptrace.h +++ b/arch/riscv/include/asm/ptrace.h @@ -56,8 +56,8 @@ struct pt_regs { unsigned long sstatus; unsigned long sbadaddr; unsigned long scause; - /* a0 value before the syscall */ - unsigned long orig_a0; + /* a0 value before the syscall */ + unsigned long orig_a0; }; #ifdef CONFIG_64BIT diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index 473cfc84e412..8c3e3e3c8be1 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -400,13 +400,13 @@ extern unsigned long __must_check __asm_copy_from_user(void *to, static inline unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n) { - return __asm_copy_to_user(to, from, n); + return __asm_copy_from_user(to, from, n); } static inline unsigned long raw_copy_to_user(void __user *to, const void *from, unsigned long n) { - return __asm_copy_from_user(to, from, n); + return __asm_copy_to_user(to, from, n); } extern long strncpy_from_user(char *dest, const char __user *src, long count); diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h index eff7aa9aa163..fef96f117b4d 100644 --- a/arch/riscv/include/asm/unistd.h +++ b/arch/riscv/include/asm/unistd.h @@ -13,10 +13,9 @@ /* * There is explicitly no include guard here because this file is expected to - * be included multiple times. See uapi/asm/syscalls.h for more info. + * be included multiple times. */ -#define __ARCH_WANT_NEW_STAT #define __ARCH_WANT_SYS_CLONE + #include <uapi/asm/unistd.h> -#include <uapi/asm/syscalls.h> diff --git a/arch/riscv/include/uapi/asm/syscalls.h b/arch/riscv/include/uapi/asm/unistd.h index 206dc4b0f6ea..1f3bd3ebbb0d 100644 --- a/arch/riscv/include/uapi/asm/syscalls.h +++ b/arch/riscv/include/uapi/asm/unistd.h @@ -1,13 +1,25 @@ -/* SPDX-License-Identifier: GPL-2.0 */ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* - * Copyright (C) 2017-2018 SiFive + * Copyright (C) 2018 David Abdurachmanov <david.abdurachmanov@gmail.com> + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -/* - * There is explicitly no include guard here because this file is expected to - * be included multiple times in order to define the syscall macros via - * __SYSCALL. - */ +#ifdef __LP64__ +#define __ARCH_WANT_NEW_STAT +#endif /* __LP64__ */ + +#include <asm-generic/unistd.h> /* * Allows the instruction cache to be flushed from userspace. Despite RISC-V diff --git a/arch/riscv/kernel/cpu.c b/arch/riscv/kernel/cpu.c index 3a5a2ee31547..b4a7d4427fbb 100644 --- a/arch/riscv/kernel/cpu.c +++ b/arch/riscv/kernel/cpu.c @@ -64,7 +64,7 @@ int riscv_of_processor_hartid(struct device_node *node) static void print_isa(struct seq_file *f, const char *orig_isa) { - static const char *ext = "mafdc"; + static const char *ext = "mafdcsu"; const char *isa = orig_isa; const char *e; @@ -88,11 +88,14 @@ static void print_isa(struct seq_file *f, const char *orig_isa) /* * Check the rest of the ISA string for valid extensions, printing those * we find. RISC-V ISA strings define an order, so we only print the - * extension bits when they're in order. + * extension bits when they're in order. Hide the supervisor (S) + * extension from userspace as it's not accessible from there. */ for (e = ext; *e != '\0'; ++e) { if (isa[0] == e[0]) { - seq_write(f, isa, 1); + if (isa[0] != 's') + seq_write(f, isa, 1); + isa++; } } diff --git a/arch/riscv/kernel/head.S b/arch/riscv/kernel/head.S index 711190d473d4..fe884cd69abd 100644 --- a/arch/riscv/kernel/head.S +++ b/arch/riscv/kernel/head.S @@ -44,6 +44,16 @@ ENTRY(_start) amoadd.w a3, a2, (a3) bnez a3, .Lsecondary_start + /* Clear BSS for flat non-ELF images */ + la a3, __bss_start + la a4, __bss_stop + ble a4, a3, clear_bss_done +clear_bss: + REG_S zero, (a3) + add a3, a3, RISCV_SZPTR + blt a3, a4, clear_bss +clear_bss_done: + /* Save hart ID and DTB physical address */ mv s0, a0 mv s1, a1 diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index 3303ed2cd419..7dd308129b40 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -21,7 +21,7 @@ static int apply_r_riscv_32_rela(struct module *me, u32 *location, Elf_Addr v) { if (v != (u32)v) { pr_err("%s: value %016llx out of range for 32-bit field\n", - me->name, v); + me->name, (long long)v); return -EINVAL; } *location = v; @@ -102,7 +102,7 @@ static int apply_r_riscv_pcrel_hi20_rela(struct module *me, u32 *location, if (offset != (s32)offset) { pr_err( "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", - me->name, v, location); + me->name, (long long)v, location); return -EINVAL; } @@ -144,7 +144,7 @@ static int apply_r_riscv_hi20_rela(struct module *me, u32 *location, if (IS_ENABLED(CMODEL_MEDLOW)) { pr_err( "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", - me->name, v, location); + me->name, (long long)v, location); return -EINVAL; } @@ -188,7 +188,7 @@ static int apply_r_riscv_got_hi20_rela(struct module *me, u32 *location, } else { pr_err( "%s: can not generate the GOT entry for symbol = %016llx from PC = %p\n", - me->name, v, location); + me->name, (long long)v, location); return -EINVAL; } @@ -212,7 +212,7 @@ static int apply_r_riscv_call_plt_rela(struct module *me, u32 *location, } else { pr_err( "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", - me->name, v, location); + me->name, (long long)v, location); return -EINVAL; } } @@ -234,7 +234,7 @@ static int apply_r_riscv_call_rela(struct module *me, u32 *location, if (offset != fill_v) { pr_err( "%s: target %016llx can not be addressed by the 32-bit offset from PC = %p\n", - me->name, v, location); + me->name, (long long)v, location); return -EINVAL; } diff --git a/arch/riscv/kernel/vmlinux.lds.S b/arch/riscv/kernel/vmlinux.lds.S index ece84991609c..65df1dfdc303 100644 --- a/arch/riscv/kernel/vmlinux.lds.S +++ b/arch/riscv/kernel/vmlinux.lds.S @@ -74,7 +74,7 @@ SECTIONS *(.sbss*) } - BSS_SECTION(0, 0, 0) + BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 0) EXCEPTION_TABLE(0x10) NOTES diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile index 5739bd05d289..4e2e600f7d53 100644 --- a/arch/riscv/lib/Makefile +++ b/arch/riscv/lib/Makefile @@ -3,6 +3,6 @@ lib-y += memcpy.o lib-y += memset.o lib-y += uaccess.o -lib-(CONFIG_64BIT) += tishift.o +lib-$(CONFIG_64BIT) += tishift.o lib-$(CONFIG_32BIT) += udivdi3.o diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 0b33577932c3..e21053e5e0da 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -27,7 +27,7 @@ KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding) KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g) KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,)) UTS_MACHINE := s390x -STACK_SIZE := $(if $(CONFIG_KASAN),32768,16384) +STACK_SIZE := $(if $(CONFIG_KASAN),65536,16384) CHECKFLAGS += -D__s390__ -D__s390x__ export LD_BFD diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile index 593039620487..b1bdd15e3429 100644 --- a/arch/s390/boot/compressed/Makefile +++ b/arch/s390/boot/compressed/Makefile @@ -22,10 +22,10 @@ OBJCOPYFLAGS := OBJECTS := $(addprefix $(obj)/,$(obj-y)) LDFLAGS_vmlinux := --oformat $(LD_BFD) -e startup -T -$(obj)/vmlinux: $(obj)/vmlinux.lds $(objtree)/arch/s390/boot/startup.a $(OBJECTS) +$(obj)/vmlinux: $(obj)/vmlinux.lds $(objtree)/arch/s390/boot/startup.a $(OBJECTS) FORCE $(call if_changed,ld) -OBJCOPYFLAGS_info.bin := -O binary --only-section=.vmlinux.info +OBJCOPYFLAGS_info.bin := -O binary --only-section=.vmlinux.info --set-section-flags .vmlinux.info=load $(obj)/info.bin: vmlinux FORCE $(call if_changed,objcopy) @@ -46,17 +46,17 @@ suffix-$(CONFIG_KERNEL_LZMA) := .lzma suffix-$(CONFIG_KERNEL_LZO) := .lzo suffix-$(CONFIG_KERNEL_XZ) := .xz -$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) +$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE $(call if_changed,gzip) -$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) +$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE $(call if_changed,bzip2) -$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) +$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE $(call if_changed,lz4) -$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) +$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE $(call if_changed,lzma) -$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) +$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE $(call if_changed,lzo) -$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) +$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE $(call if_changed,xzkern) OBJCOPYFLAGS_piggy.o := -I binary -O elf64-s390 -B s390:64-bit --rename-section .data=.vmlinux.bin.compressed diff --git a/arch/s390/configs/debug_defconfig b/arch/s390/configs/debug_defconfig index 259d1698ac50..c69cb04b7a59 100644 --- a/arch/s390/configs/debug_defconfig +++ b/arch/s390/configs/debug_defconfig @@ -64,6 +64,8 @@ CONFIG_NUMA=y CONFIG_PREEMPT=y CONFIG_HZ_100=y CONFIG_KEXEC_FILE=y +CONFIG_EXPOLINE=y +CONFIG_EXPOLINE_AUTO=y CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTREMOVE=y CONFIG_KSM=y @@ -84,9 +86,11 @@ CONFIG_PCI_DEBUG=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_S390=y CONFIG_CHSC_SCH=y +CONFIG_VFIO_AP=m CONFIG_CRASH_DUMP=y CONFIG_BINFMT_MISC=m CONFIG_HIBERNATION=y +CONFIG_PM_DEBUG=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_DIAG=m @@ -161,8 +165,6 @@ CONFIG_NF_CONNTRACK_TFTP=m CONFIG_NF_CT_NETLINK=m CONFIG_NF_CT_NETLINK_TIMEOUT=m CONFIG_NF_TABLES=m -CONFIG_NFT_EXTHDR=m -CONFIG_NFT_META=m CONFIG_NFT_CT=m CONFIG_NFT_COUNTER=m CONFIG_NFT_LOG=m @@ -365,6 +367,8 @@ CONFIG_NET_ACT_SKBEDIT=m CONFIG_NET_ACT_CSUM=m CONFIG_DNS_RESOLVER=y CONFIG_OPENVSWITCH=m +CONFIG_VSOCKETS=m +CONFIG_VIRTIO_VSOCKETS=m CONFIG_NETLINK_DIAG=m CONFIG_CGROUP_NET_PRIO=y CONFIG_BPF_JIT=y @@ -461,6 +465,7 @@ CONFIG_PPTP=m CONFIG_PPPOL2TP=m CONFIG_PPP_ASYNC=m CONFIG_PPP_SYNC_TTY=m +CONFIG_ISM=m CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set @@ -486,9 +491,12 @@ CONFIG_MLX4_INFINIBAND=m CONFIG_MLX5_INFINIBAND=m CONFIG_VFIO=m CONFIG_VFIO_PCI=m +CONFIG_VFIO_MDEV=m +CONFIG_VFIO_MDEV_DEVICE=m CONFIG_VIRTIO_PCI=m CONFIG_VIRTIO_BALLOON=m CONFIG_VIRTIO_INPUT=y +CONFIG_S390_AP_IOMMU=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y @@ -615,7 +623,6 @@ CONFIG_DEBUG_CREDENTIALS=y CONFIG_RCU_TORTURE_TEST=m CONFIG_RCU_CPU_STALL_TIMEOUT=300 CONFIG_NOTIFIER_ERROR_INJECTION=m -CONFIG_PM_NOTIFIER_ERROR_INJECT=m CONFIG_NETDEV_NOTIFIER_ERROR_INJECT=m CONFIG_FAULT_INJECTION=y CONFIG_FAILSLAB=y @@ -727,3 +734,4 @@ CONFIG_APPLDATA_BASE=y CONFIG_KVM=m CONFIG_KVM_S390_UCONTROL=y CONFIG_VHOST_NET=m +CONFIG_VHOST_VSOCK=m diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig index 37fd60c20e22..32f539dc9c19 100644 --- a/arch/s390/configs/performance_defconfig +++ b/arch/s390/configs/performance_defconfig @@ -65,6 +65,8 @@ CONFIG_NR_CPUS=512 CONFIG_NUMA=y CONFIG_HZ_100=y CONFIG_KEXEC_FILE=y +CONFIG_EXPOLINE=y +CONFIG_EXPOLINE_AUTO=y CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTREMOVE=y CONFIG_KSM=y @@ -82,9 +84,11 @@ CONFIG_PCI=y CONFIG_HOTPLUG_PCI=y CONFIG_HOTPLUG_PCI_S390=y CONFIG_CHSC_SCH=y +CONFIG_VFIO_AP=m CONFIG_CRASH_DUMP=y CONFIG_BINFMT_MISC=m CONFIG_HIBERNATION=y +CONFIG_PM_DEBUG=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_DIAG=m @@ -159,8 +163,6 @@ CONFIG_NF_CONNTRACK_TFTP=m CONFIG_NF_CT_NETLINK=m CONFIG_NF_CT_NETLINK_TIMEOUT=m CONFIG_NF_TABLES=m -CONFIG_NFT_EXTHDR=m -CONFIG_NFT_META=m CONFIG_NFT_CT=m CONFIG_NFT_COUNTER=m CONFIG_NFT_LOG=m @@ -362,6 +364,8 @@ CONFIG_NET_ACT_SKBEDIT=m CONFIG_NET_ACT_CSUM=m CONFIG_DNS_RESOLVER=y CONFIG_OPENVSWITCH=m +CONFIG_VSOCKETS=m +CONFIG_VIRTIO_VSOCKETS=m CONFIG_NETLINK_DIAG=m CONFIG_CGROUP_NET_PRIO=y CONFIG_BPF_JIT=y @@ -458,6 +462,7 @@ CONFIG_PPTP=m CONFIG_PPPOL2TP=m CONFIG_PPP_ASYNC=m CONFIG_PPP_SYNC_TTY=m +CONFIG_ISM=m CONFIG_INPUT_EVDEV=y # CONFIG_INPUT_KEYBOARD is not set # CONFIG_INPUT_MOUSE is not set @@ -483,9 +488,12 @@ CONFIG_MLX4_INFINIBAND=m CONFIG_MLX5_INFINIBAND=m CONFIG_VFIO=m CONFIG_VFIO_PCI=m +CONFIG_VFIO_MDEV=m +CONFIG_VFIO_MDEV_DEVICE=m CONFIG_VIRTIO_PCI=m CONFIG_VIRTIO_BALLOON=m CONFIG_VIRTIO_INPUT=y +CONFIG_S390_AP_IOMMU=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_EXT4_FS_SECURITY=y @@ -666,3 +674,4 @@ CONFIG_APPLDATA_BASE=y CONFIG_KVM=m CONFIG_KVM_S390_UCONTROL=y CONFIG_VHOST_NET=m +CONFIG_VHOST_VSOCK=m diff --git a/arch/s390/defconfig b/arch/s390/defconfig index 7cb6a52f727d..4d58a92b5d97 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -26,14 +26,23 @@ CONFIG_CGROUP_CPUACCT=y CONFIG_CGROUP_PERF=y CONFIG_NAMESPACES=y CONFIG_USER_NS=y +CONFIG_CHECKPOINT_RESTORE=y CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y # CONFIG_SYSFS_SYSCALL is not set -CONFIG_CHECKPOINT_RESTORE=y CONFIG_BPF_SYSCALL=y CONFIG_USERFAULTFD=y # CONFIG_COMPAT_BRK is not set CONFIG_PROFILING=y +CONFIG_LIVEPATCH=y +CONFIG_NR_CPUS=256 +CONFIG_NUMA=y +CONFIG_HZ_100=y +CONFIG_KEXEC_FILE=y +CONFIG_CRASH_DUMP=y +CONFIG_HIBERNATION=y +CONFIG_PM_DEBUG=y +CONFIG_CMM=m CONFIG_OPROFILE=y CONFIG_KPROBES=y CONFIG_JUMP_LABEL=y @@ -44,11 +53,7 @@ CONFIG_BLK_DEV_INTEGRITY=y CONFIG_PARTITION_ADVANCED=y CONFIG_IBM_PARTITION=y CONFIG_DEFAULT_DEADLINE=y -CONFIG_LIVEPATCH=y -CONFIG_NR_CPUS=256 -CONFIG_NUMA=y -CONFIG_HZ_100=y -CONFIG_KEXEC_FILE=y +CONFIG_BINFMT_MISC=m CONFIG_MEMORY_HOTPLUG=y CONFIG_MEMORY_HOTREMOVE=y CONFIG_KSM=y @@ -60,9 +65,6 @@ CONFIG_ZBUD=m CONFIG_ZSMALLOC=m CONFIG_ZSMALLOC_STAT=y CONFIG_IDLE_PAGE_TRACKING=y -CONFIG_CRASH_DUMP=y -CONFIG_BINFMT_MISC=m -CONFIG_HIBERNATION=y CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y @@ -98,6 +100,7 @@ CONFIG_BLK_DEV_NBD=m CONFIG_BLK_DEV_RAM=y CONFIG_VIRTIO_BLK=y CONFIG_SCSI=y +# CONFIG_SCSI_MQ_DEFAULT is not set CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=y CONFIG_BLK_DEV_SR=y @@ -131,6 +134,7 @@ CONFIG_EQUALIZER=m CONFIG_TUN=m CONFIG_VIRTIO_NET=y # CONFIG_NET_VENDOR_ALACRITECH is not set +# CONFIG_NET_VENDOR_AURORA is not set # CONFIG_NET_VENDOR_CORTINA is not set # CONFIG_NET_VENDOR_SOLARFLARE is not set # CONFIG_NET_VENDOR_SOCIONEXT is not set @@ -157,33 +161,6 @@ CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y CONFIG_HUGETLBFS=y # CONFIG_NETWORK_FILESYSTEMS is not set -CONFIG_DEBUG_INFO=y -CONFIG_DEBUG_INFO_DWARF4=y -CONFIG_GDB_SCRIPTS=y -CONFIG_UNUSED_SYMBOLS=y -CONFIG_DEBUG_SECTION_MISMATCH=y -CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y -CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_PAGEALLOC=y -CONFIG_DETECT_HUNG_TASK=y -CONFIG_PANIC_ON_OOPS=y -CONFIG_PROVE_LOCKING=y -CONFIG_LOCK_STAT=y -CONFIG_DEBUG_LOCKDEP=y -CONFIG_DEBUG_ATOMIC_SLEEP=y -CONFIG_DEBUG_LIST=y -CONFIG_DEBUG_SG=y -CONFIG_DEBUG_NOTIFIERS=y -CONFIG_RCU_CPU_STALL_TIMEOUT=60 -CONFIG_LATENCYTOP=y -CONFIG_SCHED_TRACER=y -CONFIG_FTRACE_SYSCALLS=y -CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y -CONFIG_STACK_TRACER=y -CONFIG_BLK_DEV_IO_TRACE=y -CONFIG_FUNCTION_PROFILER=y -# CONFIG_RUNTIME_TESTING_MENU is not set -CONFIG_S390_PTDUMP=y CONFIG_CRYPTO_CRYPTD=m CONFIG_CRYPTO_AUTHENC=m CONFIG_CRYPTO_TEST=m @@ -193,6 +170,7 @@ CONFIG_CRYPTO_CBC=y CONFIG_CRYPTO_CFB=m CONFIG_CRYPTO_CTS=m CONFIG_CRYPTO_LRW=m +CONFIG_CRYPTO_OFB=m CONFIG_CRYPTO_PCBC=m CONFIG_CRYPTO_XTS=m CONFIG_CRYPTO_CMAC=m @@ -231,7 +209,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_ZCRYPT=m -CONFIG_ZCRYPT_MULTIDEVNODES=y CONFIG_PKEY=m CONFIG_CRYPTO_PAES_S390=m CONFIG_CRYPTO_SHA1_S390=m @@ -247,4 +224,30 @@ CONFIG_CRC7=m # CONFIG_XZ_DEC_ARM is not set # CONFIG_XZ_DEC_ARMTHUMB is not set # CONFIG_XZ_DEC_SPARC is not set -CONFIG_CMM=m +CONFIG_DEBUG_INFO=y +CONFIG_DEBUG_INFO_DWARF4=y +CONFIG_GDB_SCRIPTS=y +CONFIG_UNUSED_SYMBOLS=y +CONFIG_DEBUG_SECTION_MISMATCH=y +CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y +CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_PAGEALLOC=y +CONFIG_DETECT_HUNG_TASK=y +CONFIG_PANIC_ON_OOPS=y +CONFIG_PROVE_LOCKING=y +CONFIG_LOCK_STAT=y +CONFIG_DEBUG_LOCKDEP=y +CONFIG_DEBUG_ATOMIC_SLEEP=y +CONFIG_DEBUG_LIST=y +CONFIG_DEBUG_SG=y +CONFIG_DEBUG_NOTIFIERS=y +CONFIG_RCU_CPU_STALL_TIMEOUT=60 +CONFIG_LATENCYTOP=y +CONFIG_SCHED_TRACER=y +CONFIG_FTRACE_SYSCALLS=y +CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y +CONFIG_STACK_TRACER=y +CONFIG_BLK_DEV_IO_TRACE=y +CONFIG_FUNCTION_PROFILER=y +# CONFIG_RUNTIME_TESTING_MENU is not set +CONFIG_S390_PTDUMP=y diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h index dbd689d556ce..ccbb53e22024 100644 --- a/arch/s390/include/asm/mmu_context.h +++ b/arch/s390/include/asm/mmu_context.h @@ -46,8 +46,6 @@ static inline int init_new_context(struct task_struct *tsk, mm->context.asce_limit = STACK_TOP_MAX; mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_REGION3; - /* pgd_alloc() did not account this pud */ - mm_inc_nr_puds(mm); break; case -PAGE_SIZE: /* forked 5-level task, set new asce with new_mm->pgd */ @@ -63,9 +61,6 @@ static inline int init_new_context(struct task_struct *tsk, /* forked 2-level compat task, set new asce with new mm->pgd */ mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_SEGMENT; - /* pgd_alloc() did not account this pmd */ - mm_inc_nr_pmds(mm); - mm_inc_nr_puds(mm); } crst_table_init((unsigned long *) mm->pgd, pgd_entry_type(mm)); return 0; diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index f0f9bcf94c03..5ee733720a57 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -36,11 +36,11 @@ static inline void crst_table_init(unsigned long *crst, unsigned long entry) static inline unsigned long pgd_entry_type(struct mm_struct *mm) { - if (mm->context.asce_limit <= _REGION3_SIZE) + if (mm_pmd_folded(mm)) return _SEGMENT_ENTRY_EMPTY; - if (mm->context.asce_limit <= _REGION2_SIZE) + if (mm_pud_folded(mm)) return _REGION3_ENTRY_EMPTY; - if (mm->context.asce_limit <= _REGION1_SIZE) + if (mm_p4d_folded(mm)) return _REGION2_ENTRY_EMPTY; return _REGION1_ENTRY_EMPTY; } diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 411d435e7a7d..063732414dfb 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -493,6 +493,24 @@ static inline int is_module_addr(void *addr) _REGION_ENTRY_PROTECT | \ _REGION_ENTRY_NOEXEC) +static inline bool mm_p4d_folded(struct mm_struct *mm) +{ + return mm->context.asce_limit <= _REGION1_SIZE; +} +#define mm_p4d_folded(mm) mm_p4d_folded(mm) + +static inline bool mm_pud_folded(struct mm_struct *mm) +{ + return mm->context.asce_limit <= _REGION2_SIZE; +} +#define mm_pud_folded(mm) mm_pud_folded(mm) + +static inline bool mm_pmd_folded(struct mm_struct *mm) +{ + return mm->context.asce_limit <= _REGION3_SIZE; +} +#define mm_pmd_folded(mm) mm_pmd_folded(mm) + static inline int mm_has_pgste(struct mm_struct *mm) { #ifdef CONFIG_PGSTE diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h index 302795c47c06..81038ab357ce 100644 --- a/arch/s390/include/asm/processor.h +++ b/arch/s390/include/asm/processor.h @@ -236,7 +236,7 @@ static inline unsigned long current_stack_pointer(void) return sp; } -static __no_sanitize_address_or_inline unsigned short stap(void) +static __no_kasan_or_inline unsigned short stap(void) { unsigned short cpu_address; @@ -330,7 +330,7 @@ static inline void __load_psw(psw_t psw) * Set PSW mask to specified value, while leaving the * PSW addr pointing to the next instruction. */ -static __no_sanitize_address_or_inline void __load_psw_mask(unsigned long mask) +static __no_kasan_or_inline void __load_psw_mask(unsigned long mask) { unsigned long addr; psw_t psw; diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h index 27248f42a03c..ce4e17c9aad6 100644 --- a/arch/s390/include/asm/thread_info.h +++ b/arch/s390/include/asm/thread_info.h @@ -14,7 +14,7 @@ * General size of kernel stacks */ #ifdef CONFIG_KASAN -#define THREAD_SIZE_ORDER 3 +#define THREAD_SIZE_ORDER 4 #else #define THREAD_SIZE_ORDER 2 #endif diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index 457b7ba0fbb6..b31c779cf581 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -136,7 +136,7 @@ static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, unsigned long address) { - if (tlb->mm->context.asce_limit <= _REGION3_SIZE) + if (mm_pmd_folded(tlb->mm)) return; pgtable_pmd_page_dtor(virt_to_page(pmd)); tlb_remove_table(tlb, pmd); @@ -152,7 +152,7 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, unsigned long address) { - if (tlb->mm->context.asce_limit <= _REGION1_SIZE) + if (mm_p4d_folded(tlb->mm)) return; tlb_remove_table(tlb, p4d); } @@ -167,7 +167,7 @@ static inline void p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d, static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, unsigned long address) { - if (tlb->mm->context.asce_limit <= _REGION2_SIZE) + if (mm_pud_folded(tlb->mm)) return; tlb_remove_table(tlb, pud); } diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 724fba4d09d2..39191a0feed1 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -236,10 +236,10 @@ ENTRY(__switch_to) stmg %r6,%r15,__SF_GPRS(%r15) # store gprs of prev task lghi %r4,__TASK_stack lghi %r1,__TASK_thread - lg %r5,0(%r4,%r3) # start of kernel stack of next + llill %r5,STACK_INIT stg %r15,__THREAD_ksp(%r1,%r2) # store kernel stack of prev - lgr %r15,%r5 - aghi %r15,STACK_INIT # end of kernel stack of next + lg %r15,0(%r4,%r3) # start of kernel stack of next + agr %r15,%r5 # end of kernel stack of next stg %r3,__LC_CURRENT # store task struct of next stg %r15,__LC_KERNEL_STACK # store end of kernel stack lg %r15,__THREAD_ksp(%r1,%r3) # load kernel stack of next diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index cc085e2d2ce9..74091fd3101e 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -373,7 +373,7 @@ static int __hw_perf_event_init(struct perf_event *event) return -ENOENT; if (ev > PERF_CPUM_CF_MAX_CTR) - return -EINVAL; + return -ENOENT; /* Obtain the counter set to which the specified counter belongs */ set = get_counter_set(ev); diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index 7bf604ff50a1..bfabeb1889cc 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1842,10 +1842,30 @@ static void cpumsf_pmu_del(struct perf_event *event, int flags) CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC, PERF_EVENT_CPUM_SF); CPUMF_EVENT_ATTR(SF, SF_CYCLES_BASIC_DIAG, PERF_EVENT_CPUM_SF_DIAG); -static struct attribute *cpumsf_pmu_events_attr[] = { - CPUMF_EVENT_PTR(SF, SF_CYCLES_BASIC), - NULL, - NULL, +/* Attribute list for CPU_SF. + * + * The availablitiy depends on the CPU_MF sampling facility authorization + * for basic + diagnositic samples. This is determined at initialization + * time by the sampling facility device driver. + * If the authorization for basic samples is turned off, it should be + * also turned off for diagnostic sampling. + * + * During initialization of the device driver, check the authorization + * level for diagnostic sampling and installs the attribute + * file for diagnostic sampling if necessary. + * + * For now install a placeholder to reference all possible attributes: + * SF_CYCLES_BASIC and SF_CYCLES_BASIC_DIAG. + * Add another entry for the final NULL pointer. + */ +enum { + SF_CYCLES_BASIC_ATTR_IDX = 0, + SF_CYCLES_BASIC_DIAG_ATTR_IDX, + SF_CYCLES_ATTR_MAX +}; + +static struct attribute *cpumsf_pmu_events_attr[SF_CYCLES_ATTR_MAX + 1] = { + [SF_CYCLES_BASIC_ATTR_IDX] = CPUMF_EVENT_PTR(SF, SF_CYCLES_BASIC) }; PMU_FORMAT_ATTR(event, "config:0-63"); @@ -2040,7 +2060,10 @@ static int __init init_cpum_sampling_pmu(void) if (si.ad) { sfb_set_limits(CPUM_SF_MIN_SDB, CPUM_SF_MAX_SDB); - cpumsf_pmu_events_attr[1] = + /* Sampling of diagnostic data authorized, + * install event into attribute list of PMU device. + */ + cpumsf_pmu_events_attr[SF_CYCLES_BASIC_DIAG_ATTR_IDX] = CPUMF_EVENT_PTR(SF, SF_CYCLES_BASIC_DIAG); } diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile index eb8aebea3ea7..e76309fbbcb3 100644 --- a/arch/s390/kernel/vdso32/Makefile +++ b/arch/s390/kernel/vdso32/Makefile @@ -37,7 +37,7 @@ KASAN_SANITIZE := n $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so # link rule for the .so file, .lds has to be first -$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) +$(obj)/vdso32.so.dbg: $(src)/vdso32.lds $(obj-vdso32) FORCE $(call if_changed,vdso32ld) # strip rule for the .so file @@ -46,12 +46,12 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE $(call if_changed,objcopy) # assembly rules for the .S files -$(obj-vdso32): %.o: %.S +$(obj-vdso32): %.o: %.S FORCE $(call if_changed_dep,vdso32as) # actual build commands quiet_cmd_vdso32ld = VDSO32L $@ - cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $^ -o $@ + cmd_vdso32ld = $(CC) $(c_flags) -Wl,-T $(filter %.lds %.o,$^) -o $@ quiet_cmd_vdso32as = VDSO32A $@ cmd_vdso32as = $(CC) $(a_flags) -c -o $@ $< diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile index a22b2cf86eec..f849ac61c5da 100644 --- a/arch/s390/kernel/vdso64/Makefile +++ b/arch/s390/kernel/vdso64/Makefile @@ -37,7 +37,7 @@ KASAN_SANITIZE := n $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so # link rule for the .so file, .lds has to be first -$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) +$(obj)/vdso64.so.dbg: $(src)/vdso64.lds $(obj-vdso64) FORCE $(call if_changed,vdso64ld) # strip rule for the .so file @@ -46,12 +46,12 @@ $(obj)/%.so: $(obj)/%.so.dbg FORCE $(call if_changed,objcopy) # assembly rules for the .S files -$(obj-vdso64): %.o: %.S +$(obj-vdso64): %.o: %.S FORCE $(call if_changed_dep,vdso64as) # actual build commands quiet_cmd_vdso64ld = VDSO64L $@ - cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $^ -o $@ + cmd_vdso64ld = $(CC) $(c_flags) -Wl,-T $(filter %.lds %.o,$^) -o $@ quiet_cmd_vdso64as = VDSO64A $@ cmd_vdso64as = $(CC) $(a_flags) -c -o $@ $< diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S index 21eb7407d51b..8429ab079715 100644 --- a/arch/s390/kernel/vmlinux.lds.S +++ b/arch/s390/kernel/vmlinux.lds.S @@ -154,14 +154,14 @@ SECTIONS * uncompressed image info used by the decompressor * it should match struct vmlinux_info */ - .vmlinux.info 0 : { + .vmlinux.info 0 (INFO) : { QUAD(_stext) /* default_lma */ QUAD(startup_continue) /* entry */ QUAD(__bss_start - _stext) /* image_size */ QUAD(__bss_stop - __bss_start) /* bss_size */ QUAD(__boot_data_start) /* bootdata_off */ QUAD(__boot_data_end - __boot_data_start) /* bootdata_size */ - } + } :NONE /* Debugging sections. */ STABS_DEBUG diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c index 76d89ee8b428..814f26520aa2 100644 --- a/arch/s390/mm/pgalloc.c +++ b/arch/s390/mm/pgalloc.c @@ -101,6 +101,7 @@ int crst_table_upgrade(struct mm_struct *mm, unsigned long end) mm->context.asce_limit = _REGION1_SIZE; mm->context.asce = __pa(mm->pgd) | _ASCE_TABLE_LENGTH | _ASCE_USER_BITS | _ASCE_TYPE_REGION2; + mm_inc_nr_puds(mm); } else { crst_table_init(table, _REGION1_ENTRY_EMPTY); pgd_populate(mm, (pgd_t *) table, (p4d_t *) pgd); diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c index ae0d9e889534..d31bde0870d8 100644 --- a/arch/s390/numa/numa.c +++ b/arch/s390/numa/numa.c @@ -53,6 +53,7 @@ int __node_distance(int a, int b) { return mode->distance ? mode->distance(a, b) : 0; } +EXPORT_SYMBOL(__node_distance); int numa_debug_enabled; diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 67b3e6b3ce5d..47c871394ccb 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1849,16 +1849,12 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs { u64 saved_fault_address = current_thread_info()->fault_address; u8 saved_fault_code = get_thread_fault_code(); - mm_segment_t old_fs; perf_callchain_store(entry, regs->tpc); if (!current->mm) return; - old_fs = get_fs(); - set_fs(USER_DS); - flushw_user(); pagefault_disable(); @@ -1870,7 +1866,6 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs pagefault_enable(); - set_fs(old_fs); set_thread_fault_code(saved_fault_code); current_thread_info()->fault_address = saved_fault_address; } diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index bb68c805b891..ff9389a1c9f3 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -47,9 +47,9 @@ sys_call_table32: .word sys_recvfrom, sys_setreuid16, sys_setregid16, sys_rename, compat_sys_truncate /*130*/ .word compat_sys_ftruncate, sys_flock, compat_sys_lstat64, sys_sendto, sys_shutdown .word sys_socketpair, sys_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 -/*140*/ .word sys_sendfile64, sys_nis_syscall, compat_sys_futex, sys_gettid, compat_sys_getrlimit +/*140*/ .word sys_sendfile64, sys_getpeername, compat_sys_futex, sys_gettid, compat_sys_getrlimit .word compat_sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write -/*150*/ .word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 +/*150*/ .word sys_getsockname, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 .word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount /*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_nis_syscall .word sys_quotactl, sys_set_tid_address, compat_sys_mount, compat_sys_ustat, sys_setxattr diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 74c002ddc0ce..28c40624bcb6 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -1305,6 +1305,7 @@ static int ubd_queue_one_vec(struct blk_mq_hw_ctx *hctx, struct request *req, io_req->fds[0] = dev->cow.fd; else io_req->fds[0] = dev->fd; + io_req->error = 0; if (req_op(req) == REQ_OP_FLUSH) { io_req->op = UBD_FLUSH; @@ -1313,9 +1314,7 @@ static int ubd_queue_one_vec(struct blk_mq_hw_ctx *hctx, struct request *req, io_req->cow_offset = -1; io_req->offset = off; io_req->length = bvec->bv_len; - io_req->error = 0; io_req->sector_mask = 0; - io_req->op = rq_data_dir(req) == READ ? UBD_READ : UBD_WRITE; io_req->offsets[0] = 0; io_req->offsets[1] = dev->cow.data_offset; @@ -1341,11 +1340,14 @@ static int ubd_queue_one_vec(struct blk_mq_hw_ctx *hctx, struct request *req, static blk_status_t ubd_queue_rq(struct blk_mq_hw_ctx *hctx, const struct blk_mq_queue_data *bd) { + struct ubd *ubd_dev = hctx->queue->queuedata; struct request *req = bd->rq; int ret = 0; blk_mq_start_request(req); + spin_lock_irq(&ubd_dev->lock); + if (req_op(req) == REQ_OP_FLUSH) { ret = ubd_queue_one_vec(hctx, req, 0, NULL); } else { @@ -1361,9 +1363,11 @@ static blk_status_t ubd_queue_rq(struct blk_mq_hw_ctx *hctx, } } out: - if (ret < 0) { + spin_unlock_irq(&ubd_dev->lock); + + if (ret < 0) blk_mq_requeue_request(req, true); - } + return BLK_STS_OK; } diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index c51c989c19c0..9d734f3c8234 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -129,6 +129,7 @@ config X86 select HAVE_ARCH_PREL32_RELOCATIONS select HAVE_ARCH_SECCOMP_FILTER select HAVE_ARCH_THREAD_STRUCT_WHITELIST + select HAVE_ARCH_STACKLEAK select HAVE_ARCH_TRACEHOOK select HAVE_ARCH_TRANSPARENT_HUGEPAGE select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD if X86_64 @@ -524,7 +525,6 @@ config X86_VSMP bool "ScaleMP vSMP" select HYPERVISOR_GUEST select PARAVIRT - select PARAVIRT_XXL depends on X86_64 && PCI depends on X86_EXTENDED_PLATFORM depends on SMP diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 5b562e464009..88398fdf8129 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -213,8 +213,6 @@ ifdef CONFIG_X86_64 KBUILD_LDFLAGS += $(call ld-option, -z max-page-size=0x200000) endif -# Speed up the build -KBUILD_CFLAGS += -pipe # Workaround for a gcc prelease that unfortunately was shipped in a suse release KBUILD_CFLAGS += -Wno-sign-compare # @@ -239,7 +237,7 @@ archheaders: archmacros: $(Q)$(MAKE) $(build)=arch/x86/kernel arch/x86/kernel/macros.s -ASM_MACRO_FLAGS = -Wa,arch/x86/kernel/macros.s -Wa,- +ASM_MACRO_FLAGS = -Wa,arch/x86/kernel/macros.s export ASM_MACRO_FLAGS KBUILD_CFLAGS += $(ASM_MACRO_FLAGS) diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c index 8f0c4c9fc904..51079fc9298f 100644 --- a/arch/x86/boot/cpucheck.c +++ b/arch/x86/boot/cpucheck.c @@ -113,7 +113,7 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) { int err; - memset(&cpu.flags, 0, sizeof cpu.flags); + memset(&cpu.flags, 0, sizeof(cpu.flags)); cpu.level = 3; if (has_eflag(X86_EFLAGS_AC)) diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c index b25c53527a94..023bf1c3de8b 100644 --- a/arch/x86/boot/early_serial_console.c +++ b/arch/x86/boot/early_serial_console.c @@ -50,7 +50,7 @@ static void parse_earlyprintk(void) int pos = 0; int port = 0; - if (cmdline_find_option("earlyprintk", arg, sizeof arg) > 0) { + if (cmdline_find_option("earlyprintk", arg, sizeof(arg)) > 0) { char *e; if (!strncmp(arg, "serial", 6)) { @@ -124,7 +124,7 @@ static void parse_console_uart8250(void) * console=uart8250,io,0x3f8,115200n8 * need to make sure it is last one console ! */ - if (cmdline_find_option("console", optstr, sizeof optstr) <= 0) + if (cmdline_find_option("console", optstr, sizeof(optstr)) <= 0) return; options = optstr; diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c index 223e42527077..6c176b6a42ad 100644 --- a/arch/x86/boot/edd.c +++ b/arch/x86/boot/edd.c @@ -76,7 +76,7 @@ static int get_edd_info(u8 devno, struct edd_info *ei) { struct biosregs ireg, oreg; - memset(ei, 0, sizeof *ei); + memset(ei, 0, sizeof(*ei)); /* Check Extensions Present */ @@ -133,7 +133,7 @@ void query_edd(void) struct edd_info ei, *edp; u32 *mbrptr; - if (cmdline_find_option("edd", eddarg, sizeof eddarg) > 0) { + if (cmdline_find_option("edd", eddarg, sizeof(eddarg)) > 0) { if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip")) { do_edd = 1; do_mbr = 0; @@ -166,7 +166,7 @@ void query_edd(void) */ if (!get_edd_info(devno, &ei) && boot_params.eddbuf_entries < EDDMAXNR) { - memcpy(edp, &ei, sizeof ei); + memcpy(edp, &ei, sizeof(ei)); edp++; boot_params.eddbuf_entries++; } diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c index 9bcea386db65..73532543d689 100644 --- a/arch/x86/boot/main.c +++ b/arch/x86/boot/main.c @@ -36,8 +36,8 @@ static void copy_boot_params(void) const struct old_cmdline * const oldcmd = (const struct old_cmdline *)OLD_CL_ADDRESS; - BUILD_BUG_ON(sizeof boot_params != 4096); - memcpy(&boot_params.hdr, &hdr, sizeof hdr); + BUILD_BUG_ON(sizeof(boot_params) != 4096); + memcpy(&boot_params.hdr, &hdr, sizeof(hdr)); if (!boot_params.hdr.cmd_line_ptr && oldcmd->cl_magic == OLD_CL_MAGIC) { diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c index d9c28c87e477..7df2b28207be 100644 --- a/arch/x86/boot/memory.c +++ b/arch/x86/boot/memory.c @@ -26,7 +26,7 @@ static int detect_memory_e820(void) initregs(&ireg); ireg.ax = 0xe820; - ireg.cx = sizeof buf; + ireg.cx = sizeof(buf); ireg.edx = SMAP; ireg.di = (size_t)&buf; diff --git a/arch/x86/boot/regs.c b/arch/x86/boot/regs.c index c0fb356a3092..2fe3616ba161 100644 --- a/arch/x86/boot/regs.c +++ b/arch/x86/boot/regs.c @@ -21,7 +21,7 @@ void initregs(struct biosregs *reg) { - memset(reg, 0, sizeof *reg); + memset(reg, 0, sizeof(*reg)); reg->eflags |= X86_EFLAGS_CF; reg->ds = ds(); reg->es = ds(); diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c index ba3e100654db..3ecc11a9c440 100644 --- a/arch/x86/boot/video-vesa.c +++ b/arch/x86/boot/video-vesa.c @@ -62,7 +62,7 @@ static int vesa_probe(void) if (mode & ~0x1ff) continue; - memset(&vminfo, 0, sizeof vminfo); /* Just in case... */ + memset(&vminfo, 0, sizeof(vminfo)); /* Just in case... */ ireg.ax = 0x4f01; ireg.cx = mode; @@ -109,7 +109,7 @@ static int vesa_set_mode(struct mode_info *mode) int is_graphic; u16 vesa_mode = mode->mode - VIDEO_FIRST_VESA; - memset(&vminfo, 0, sizeof vminfo); /* Just in case... */ + memset(&vminfo, 0, sizeof(vminfo)); /* Just in case... */ initregs(&ireg); ireg.ax = 0x4f01; @@ -241,7 +241,7 @@ void vesa_store_edid(void) struct biosregs ireg, oreg; /* Apparently used as a nonsense token... */ - memset(&boot_params.edid_info, 0x13, sizeof boot_params.edid_info); + memset(&boot_params.edid_info, 0x13, sizeof(boot_params.edid_info)); if (vginfo.version < 0x0200) return; /* EDID requires VBE 2.0+ */ diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c index 77780e386e9b..ac89b6624a40 100644 --- a/arch/x86/boot/video.c +++ b/arch/x86/boot/video.c @@ -115,7 +115,7 @@ static unsigned int get_entry(void) } else if ((key >= '0' && key <= '9') || (key >= 'A' && key <= 'Z') || (key >= 'a' && key <= 'z')) { - if (len < sizeof entry_buf) { + if (len < sizeof(entry_buf)) { entry_buf[len++] = key; putchar(key); } diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h index 708b46a54578..25e5a6bda8c3 100644 --- a/arch/x86/entry/calling.h +++ b/arch/x86/entry/calling.h @@ -329,8 +329,22 @@ For 32-bit we have the following conventions - kernel is built with #endif +.macro STACKLEAK_ERASE_NOCLOBBER +#ifdef CONFIG_GCC_PLUGIN_STACKLEAK + PUSH_AND_CLEAR_REGS + call stackleak_erase + POP_REGS +#endif +.endm + #endif /* CONFIG_X86_64 */ +.macro STACKLEAK_ERASE +#ifdef CONFIG_GCC_PLUGIN_STACKLEAK + call stackleak_erase +#endif +.endm + /* * This does 'call enter_from_user_mode' unless we can avoid it based on * kernel config or using the static jump infrastructure. diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 687e47f8a796..d309f30cf7af 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -46,6 +46,8 @@ #include <asm/frame.h> #include <asm/nospec-branch.h> +#include "calling.h" + .section .entry.text, "ax" /* @@ -712,6 +714,7 @@ ENTRY(ret_from_fork) /* When we fork, we trace the syscall return in the child, too. */ movl %esp, %eax call syscall_return_slowpath + STACKLEAK_ERASE jmp restore_all /* kernel thread */ @@ -886,6 +889,8 @@ ENTRY(entry_SYSENTER_32) ALTERNATIVE "testl %eax, %eax; jz .Lsyscall_32_done", \ "jmp .Lsyscall_32_done", X86_FEATURE_XENPV + STACKLEAK_ERASE + /* Opportunistic SYSEXIT */ TRACE_IRQS_ON /* User mode traces as IRQs on. */ @@ -997,6 +1002,8 @@ ENTRY(entry_INT80_32) call do_int80_syscall_32 .Lsyscall_32_done: + STACKLEAK_ERASE + restore_all: TRACE_IRQS_IRET SWITCH_TO_ENTRY_STACK diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index 4d7a2d9d44cf..ce25d84023c0 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -266,6 +266,8 @@ syscall_return_via_sysret: * We are on the trampoline stack. All regs except RDI are live. * We can do future final exit work right here. */ + STACKLEAK_ERASE_NOCLOBBER + SWITCH_TO_USER_CR3_STACK scratch_reg=%rdi popq %rdi @@ -625,6 +627,7 @@ GLOBAL(swapgs_restore_regs_and_return_to_usermode) * We are on the trampoline stack. All regs except RDI are live. * We can do future final exit work right here. */ + STACKLEAK_ERASE_NOCLOBBER SWITCH_TO_USER_CR3_STACK scratch_reg=%rdi diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S index 7d0df78db727..8eaf8952c408 100644 --- a/arch/x86/entry/entry_64_compat.S +++ b/arch/x86/entry/entry_64_compat.S @@ -261,6 +261,11 @@ GLOBAL(entry_SYSCALL_compat_after_hwframe) /* Opportunistic SYSRET */ sysret32_from_system_call: + /* + * We are not going to return to userspace from the trampoline + * stack. So let's erase the thread stack right now. + */ + STACKLEAK_ERASE TRACE_IRQS_ON /* User mode traces as IRQs on. */ movq RBX(%rsp), %rbx /* pt_regs->rbx */ movq RBP(%rsp), %rbp /* pt_regs->rbp */ diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 0fb8659b20d8..273c62e81546 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -4535,7 +4535,7 @@ __init int intel_pmu_init(void) } } - snprintf(pmu_name_str, sizeof pmu_name_str, "%s", name); + snprintf(pmu_name_str, sizeof(pmu_name_str), "%s", name); if (version >= 2 && extra_attr) { x86_pmu.format_attrs = merge_attr(intel_arch3_formats_attr, diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h index e17ab885b1e9..cb46d602a6b8 100644 --- a/arch/x86/events/intel/uncore.h +++ b/arch/x86/events/intel/uncore.h @@ -129,8 +129,15 @@ struct intel_uncore_box { struct intel_uncore_extra_reg shared_regs[0]; }; -#define UNCORE_BOX_FLAG_INITIATED 0 -#define UNCORE_BOX_FLAG_CTL_OFFS8 1 /* event config registers are 8-byte apart */ +/* CFL uncore 8th cbox MSRs */ +#define CFL_UNC_CBO_7_PERFEVTSEL0 0xf70 +#define CFL_UNC_CBO_7_PER_CTR0 0xf76 + +#define UNCORE_BOX_FLAG_INITIATED 0 +/* event config registers are 8-byte apart */ +#define UNCORE_BOX_FLAG_CTL_OFFS8 1 +/* CFL 8th CBOX has different MSR space */ +#define UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS 2 struct uncore_event_desc { struct kobj_attribute attr; @@ -297,17 +304,27 @@ unsigned int uncore_freerunning_counter(struct intel_uncore_box *box, static inline unsigned uncore_msr_event_ctl(struct intel_uncore_box *box, int idx) { - return box->pmu->type->event_ctl + - (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) + - uncore_msr_box_offset(box); + if (test_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags)) { + return CFL_UNC_CBO_7_PERFEVTSEL0 + + (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx); + } else { + return box->pmu->type->event_ctl + + (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) + + uncore_msr_box_offset(box); + } } static inline unsigned uncore_msr_perf_ctr(struct intel_uncore_box *box, int idx) { - return box->pmu->type->perf_ctr + - (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) + - uncore_msr_box_offset(box); + if (test_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags)) { + return CFL_UNC_CBO_7_PER_CTR0 + + (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx); + } else { + return box->pmu->type->perf_ctr + + (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) + + uncore_msr_box_offset(box); + } } static inline diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c index 8527c3e1038b..2593b0d7aeee 100644 --- a/arch/x86/events/intel/uncore_snb.c +++ b/arch/x86/events/intel/uncore_snb.c @@ -15,6 +15,25 @@ #define PCI_DEVICE_ID_INTEL_SKL_HQ_IMC 0x1910 #define PCI_DEVICE_ID_INTEL_SKL_SD_IMC 0x190f #define PCI_DEVICE_ID_INTEL_SKL_SQ_IMC 0x191f +#define PCI_DEVICE_ID_INTEL_KBL_Y_IMC 0x590c +#define PCI_DEVICE_ID_INTEL_KBL_U_IMC 0x5904 +#define PCI_DEVICE_ID_INTEL_KBL_UQ_IMC 0x5914 +#define PCI_DEVICE_ID_INTEL_KBL_SD_IMC 0x590f +#define PCI_DEVICE_ID_INTEL_KBL_SQ_IMC 0x591f +#define PCI_DEVICE_ID_INTEL_CFL_2U_IMC 0x3ecc +#define PCI_DEVICE_ID_INTEL_CFL_4U_IMC 0x3ed0 +#define PCI_DEVICE_ID_INTEL_CFL_4H_IMC 0x3e10 +#define PCI_DEVICE_ID_INTEL_CFL_6H_IMC 0x3ec4 +#define PCI_DEVICE_ID_INTEL_CFL_2S_D_IMC 0x3e0f +#define PCI_DEVICE_ID_INTEL_CFL_4S_D_IMC 0x3e1f +#define PCI_DEVICE_ID_INTEL_CFL_6S_D_IMC 0x3ec2 +#define PCI_DEVICE_ID_INTEL_CFL_8S_D_IMC 0x3e30 +#define PCI_DEVICE_ID_INTEL_CFL_4S_W_IMC 0x3e18 +#define PCI_DEVICE_ID_INTEL_CFL_6S_W_IMC 0x3ec6 +#define PCI_DEVICE_ID_INTEL_CFL_8S_W_IMC 0x3e31 +#define PCI_DEVICE_ID_INTEL_CFL_4S_S_IMC 0x3e33 +#define PCI_DEVICE_ID_INTEL_CFL_6S_S_IMC 0x3eca +#define PCI_DEVICE_ID_INTEL_CFL_8S_S_IMC 0x3e32 /* SNB event control */ #define SNB_UNC_CTL_EV_SEL_MASK 0x000000ff @@ -202,6 +221,10 @@ static void skl_uncore_msr_init_box(struct intel_uncore_box *box) wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL); } + + /* The 8th CBOX has different MSR space */ + if (box->pmu->pmu_idx == 7) + __set_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags); } static void skl_uncore_msr_enable_box(struct intel_uncore_box *box) @@ -228,7 +251,7 @@ static struct intel_uncore_ops skl_uncore_msr_ops = { static struct intel_uncore_type skl_uncore_cbox = { .name = "cbox", .num_counters = 4, - .num_boxes = 5, + .num_boxes = 8, .perf_ctr_bits = 44, .fixed_ctr_bits = 48, .perf_ctr = SNB_UNC_CBO_0_PER_CTR0, @@ -569,7 +592,82 @@ static const struct pci_device_id skl_uncore_pci_ids[] = { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SKL_SQ_IMC), .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), }, - + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_Y_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_U_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_UQ_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_SD_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_KBL_SQ_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_2U_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4U_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4H_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6H_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_2S_D_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4S_D_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6S_D_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_8S_D_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4S_W_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6S_W_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_8S_W_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_4S_S_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_6S_S_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CFL_8S_S_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, { /* end: all zeroes */ }, }; @@ -618,6 +716,25 @@ static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = { IMC_DEV(SKL_HQ_IMC, &skl_uncore_pci_driver), /* 6th Gen Core H Quad Core */ IMC_DEV(SKL_SD_IMC, &skl_uncore_pci_driver), /* 6th Gen Core S Dual Core */ IMC_DEV(SKL_SQ_IMC, &skl_uncore_pci_driver), /* 6th Gen Core S Quad Core */ + IMC_DEV(KBL_Y_IMC, &skl_uncore_pci_driver), /* 7th Gen Core Y */ + IMC_DEV(KBL_U_IMC, &skl_uncore_pci_driver), /* 7th Gen Core U */ + IMC_DEV(KBL_UQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core U Quad Core */ + IMC_DEV(KBL_SD_IMC, &skl_uncore_pci_driver), /* 7th Gen Core S Dual Core */ + IMC_DEV(KBL_SQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core S Quad Core */ + IMC_DEV(CFL_2U_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U 2 Cores */ + IMC_DEV(CFL_4U_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U 4 Cores */ + IMC_DEV(CFL_4H_IMC, &skl_uncore_pci_driver), /* 8th Gen Core H 4 Cores */ + IMC_DEV(CFL_6H_IMC, &skl_uncore_pci_driver), /* 8th Gen Core H 6 Cores */ + IMC_DEV(CFL_2S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 2 Cores Desktop */ + IMC_DEV(CFL_4S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Desktop */ + IMC_DEV(CFL_6S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Desktop */ + IMC_DEV(CFL_8S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Desktop */ + IMC_DEV(CFL_4S_W_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Work Station */ + IMC_DEV(CFL_6S_W_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Work Station */ + IMC_DEV(CFL_8S_W_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Work Station */ + IMC_DEV(CFL_4S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Server */ + IMC_DEV(CFL_6S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Server */ + IMC_DEV(CFL_8S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Server */ { /* end marker */ } }; diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h index fab4df16a3c4..22c4dfe65992 100644 --- a/arch/x86/include/asm/compat.h +++ b/arch/x86/include/asm/compat.h @@ -217,11 +217,18 @@ static inline bool in_x32_syscall(void) return false; } -static inline bool in_compat_syscall(void) +static inline bool in_32bit_syscall(void) { return in_ia32_syscall() || in_x32_syscall(); } + +#ifdef CONFIG_COMPAT +static inline bool in_compat_syscall(void) +{ + return in_32bit_syscall(); +} #define in_compat_syscall in_compat_syscall /* override the generic impl */ +#endif struct compat_siginfo; int __copy_siginfo_to_user32(struct compat_siginfo __user *to, diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 89a048c2faec..28c4a502b419 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -331,6 +331,8 @@ #define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */ #define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */ #define X86_FEATURE_CLDEMOTE (16*32+25) /* CLDEMOTE instruction */ +#define X86_FEATURE_MOVDIRI (16*32+27) /* MOVDIRI instruction */ +#define X86_FEATURE_MOVDIR64B (16*32+28) /* MOVDIR64B instruction */ /* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */ #define X86_FEATURE_OVERFLOW_RECOV (17*32+ 0) /* MCA overflow recovery support */ diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h index c18ed65287d5..cf350639e76d 100644 --- a/arch/x86/include/asm/ftrace.h +++ b/arch/x86/include/asm/ftrace.h @@ -76,9 +76,7 @@ static inline bool arch_syscall_match_sym_name(const char *sym, const char *name #define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1 static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs) { - if (in_compat_syscall()) - return true; - return false; + return in_32bit_syscall(); } #endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */ #endif /* !COMPILE_OFFSETS */ diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index 4da9b1c58d28..c1a812bd5a27 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -221,6 +221,8 @@ static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_am int mce_available(struct cpuinfo_x86 *c); bool mce_is_memory_error(struct mce *m); +bool mce_is_correctable(struct mce *m); +int mce_usable_address(struct mce *m); DECLARE_PER_CPU(unsigned, mce_exception_count); DECLARE_PER_CPU(unsigned, mce_poll_count); diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 0d6271cce198..1d0a7778e163 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -232,7 +232,7 @@ static inline u64 hv_do_fast_hypercall16(u16 code, u64 input1, u64 input2) : "cc"); } #endif - return hv_status; + return hv_status; } /* diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h index cd0cf1c568b4..8f657286d599 100644 --- a/arch/x86/include/asm/page_64_types.h +++ b/arch/x86/include/asm/page_64_types.h @@ -33,12 +33,14 @@ /* * Set __PAGE_OFFSET to the most negative possible address + - * PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a - * hypervisor to fit. Choosing 16 slots here is arbitrary, but it's - * what Xen requires. + * PGDIR_SIZE*17 (pgd slot 273). + * + * The gap is to allow a space for LDT remap for PTI (1 pgd slot) and space for + * a hypervisor (16 slots). Choosing 16 slots for a hypervisor is arbitrary, + * but it's what Xen requires. */ -#define __PAGE_OFFSET_BASE_L5 _AC(0xff10000000000000, UL) -#define __PAGE_OFFSET_BASE_L4 _AC(0xffff880000000000, UL) +#define __PAGE_OFFSET_BASE_L5 _AC(0xff11000000000000, UL) +#define __PAGE_OFFSET_BASE_L4 _AC(0xffff888000000000, UL) #ifdef CONFIG_DYNAMIC_MEMORY_LAYOUT #define __PAGE_OFFSET page_offset_base diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index fba54ca23b2a..26942ad63830 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -361,7 +361,6 @@ extern struct paravirt_patch_template pv_ops; __visible extern const char start_##ops##_##name[], end_##ops##_##name[]; \ asm(NATIVE_LABEL("start_", ops, name) code NATIVE_LABEL("end_", ops, name)) -unsigned paravirt_patch_ident_32(void *insnbuf, unsigned len); unsigned paravirt_patch_ident_64(void *insnbuf, unsigned len); unsigned paravirt_patch_default(u8 type, void *insnbuf, unsigned long addr, unsigned len); @@ -651,7 +650,6 @@ void paravirt_leave_lazy_mmu(void); void paravirt_flush_lazy_mmu(void); void _paravirt_nop(void); -u32 _paravirt_ident_32(u32); u64 _paravirt_ident_64(u64); #define paravirt_nop ((void *)_paravirt_nop) diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h index 04edd2d58211..84bd9bdc1987 100644 --- a/arch/x86/include/asm/pgtable_64_types.h +++ b/arch/x86/include/asm/pgtable_64_types.h @@ -111,9 +111,7 @@ extern unsigned int ptrs_per_p4d; */ #define MAXMEM (1UL << MAX_PHYSMEM_BITS) -#define LDT_PGD_ENTRY_L4 -3UL -#define LDT_PGD_ENTRY_L5 -112UL -#define LDT_PGD_ENTRY (pgtable_l5_enabled() ? LDT_PGD_ENTRY_L5 : LDT_PGD_ENTRY_L4) +#define LDT_PGD_ENTRY -240UL #define LDT_BASE_ADDR (LDT_PGD_ENTRY << PGDIR_SHIFT) #define LDT_END_ADDR (LDT_BASE_ADDR + PGDIR_SIZE) diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h index 87623c6b13db..bd5ac6cc37db 100644 --- a/arch/x86/include/asm/qspinlock.h +++ b/arch/x86/include/asm/qspinlock.h @@ -13,12 +13,15 @@ #define queued_fetch_set_pending_acquire queued_fetch_set_pending_acquire static __always_inline u32 queued_fetch_set_pending_acquire(struct qspinlock *lock) { - u32 val = 0; - - if (GEN_BINARY_RMWcc(LOCK_PREFIX "btsl", lock->val.counter, c, - "I", _Q_PENDING_OFFSET)) - val |= _Q_PENDING_VAL; + u32 val; + /* + * We can't use GEN_BINARY_RMWcc() inside an if() stmt because asm goto + * and CONFIG_PROFILE_ALL_BRANCHES=y results in a label inside a + * statement expression, which GCC doesn't like. + */ + val = GEN_BINARY_RMWcc(LOCK_PREFIX "btsl", lock->val.counter, c, + "I", _Q_PENDING_OFFSET) * _Q_PENDING_VAL; val |= atomic_read(&lock->val) & ~_Q_PENDING_MASK; return val; diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index 323a313947e0..d760611cfc35 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -453,6 +453,12 @@ static inline void __native_flush_tlb_one_user(unsigned long addr) */ static inline void __flush_tlb_all(void) { + /* + * This is to catch users with enabled preemption and the PGE feature + * and don't trigger the warning in __native_flush_tlb(). + */ + VM_WARN_ON_ONCE(preemptible()); + if (boot_cpu_has(X86_FEATURE_PGE)) { __flush_tlb_global(); } else { diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index 123e669bf363..790ce08e41f2 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -9,7 +9,7 @@ #include <linux/mm.h> #include <linux/device.h> -#include <linux/uaccess.h> +#include <asm/extable.h> #include <asm/page.h> #include <asm/pgtable.h> @@ -93,12 +93,39 @@ clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops, */ static inline int xen_safe_write_ulong(unsigned long *addr, unsigned long val) { - return __put_user(val, (unsigned long __user *)addr); + int ret = 0; + + asm volatile("1: mov %[val], %[ptr]\n" + "2:\n" + ".section .fixup, \"ax\"\n" + "3: sub $1, %[ret]\n" + " jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) + : [ret] "+r" (ret), [ptr] "=m" (*addr) + : [val] "r" (val)); + + return ret; } -static inline int xen_safe_read_ulong(unsigned long *addr, unsigned long *val) +static inline int xen_safe_read_ulong(const unsigned long *addr, + unsigned long *val) { - return __get_user(*val, (unsigned long __user *)addr); + int ret = 0; + unsigned long rval = ~0ul; + + asm volatile("1: mov %[ptr], %[rval]\n" + "2:\n" + ".section .fixup, \"ax\"\n" + "3: sub $1, %[ret]\n" + " jmp 2b\n" + ".previous\n" + _ASM_EXTABLE(1b, 3b) + : [ret] "+r" (ret), [rval] "+r" (rval) + : [ptr] "m" (*addr)); + *val = rval; + + return ret; } #ifdef CONFIG_XEN_PV diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index cbbd57ae06ee..ffb181f959d2 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1074,7 +1074,7 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c) #endif c->x86_cache_alignment = c->x86_clflush_size; - memset(&c->x86_capability, 0, sizeof c->x86_capability); + memset(&c->x86_capability, 0, sizeof(c->x86_capability)); c->extended_cpuid_level = 0; if (!have_cpuid_p()) @@ -1317,7 +1317,7 @@ static void identify_cpu(struct cpuinfo_x86 *c) c->x86_virt_bits = 32; #endif c->x86_cache_alignment = c->x86_clflush_size; - memset(&c->x86_capability, 0, sizeof c->x86_capability); + memset(&c->x86_capability, 0, sizeof(c->x86_capability)); generic_identify(c); diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c index 8cb3c02980cf..36d2696c9563 100644 --- a/arch/x86/kernel/cpu/mcheck/mce.c +++ b/arch/x86/kernel/cpu/mcheck/mce.c @@ -485,7 +485,7 @@ static void mce_report_event(struct pt_regs *regs) * be somewhat complicated (e.g. segment offset would require an instruction * parser). So only support physical addresses up to page granuality for now. */ -static int mce_usable_address(struct mce *m) +int mce_usable_address(struct mce *m) { if (!(m->status & MCI_STATUS_ADDRV)) return 0; @@ -505,6 +505,7 @@ static int mce_usable_address(struct mce *m) return 1; } +EXPORT_SYMBOL_GPL(mce_usable_address); bool mce_is_memory_error(struct mce *m) { @@ -534,7 +535,7 @@ bool mce_is_memory_error(struct mce *m) } EXPORT_SYMBOL_GPL(mce_is_memory_error); -static bool mce_is_correctable(struct mce *m) +bool mce_is_correctable(struct mce *m) { if (m->cpuvendor == X86_VENDOR_AMD && m->status & MCI_STATUS_DEFERRED) return false; @@ -547,6 +548,7 @@ static bool mce_is_correctable(struct mce *m) return true; } +EXPORT_SYMBOL_GPL(mce_is_correctable); static bool cec_add_mce(struct mce *m) { @@ -2215,7 +2217,7 @@ static int mce_device_create(unsigned int cpu) if (dev) return 0; - dev = kzalloc(sizeof *dev, GFP_KERNEL); + dev = kzalloc(sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; dev->id = cpu; diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c index b9bc8a1a584e..2637ff09d6a0 100644 --- a/arch/x86/kernel/cpu/microcode/core.c +++ b/arch/x86/kernel/cpu/microcode/core.c @@ -666,8 +666,8 @@ static ssize_t pf_show(struct device *dev, } static DEVICE_ATTR_WO(reload); -static DEVICE_ATTR(version, 0400, version_show, NULL); -static DEVICE_ATTR(processor_flags, 0400, pf_show, NULL); +static DEVICE_ATTR(version, 0444, version_show, NULL); +static DEVICE_ATTR(processor_flags, 0444, pf_show, NULL); static struct attribute *mc_default_attrs[] = { &dev_attr_version.attr, diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c index 1c72f3819eb1..e81a2db42df7 100644 --- a/arch/x86/kernel/cpu/mshyperv.c +++ b/arch/x86/kernel/cpu/mshyperv.c @@ -20,6 +20,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/kexec.h> +#include <linux/i8253.h> #include <asm/processor.h> #include <asm/hypervisor.h> #include <asm/hyperv-tlfs.h> @@ -295,6 +296,16 @@ static void __init ms_hyperv_init_platform(void) if (efi_enabled(EFI_BOOT)) x86_platform.get_nmi_reason = hv_get_nmi_reason; + /* + * Hyper-V VMs have a PIT emulation quirk such that zeroing the + * counter register during PIT shutdown restarts the PIT. So it + * continues to interrupt @18.2 HZ. Setting i8253_clear_counter + * to false tells pit_shutdown() not to zero the counter so that + * the PIT really is shutdown. Generation 2 VMs don't have a PIT, + * and setting this value has no effect. + */ + i8253_clear_counter_on_shutdown = false; + #if IS_ENABLED(CONFIG_HYPERV) /* * Setup the hook to get control post apic initialization. diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index e12ee86906c6..86e277f8daf4 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -798,7 +798,7 @@ static void generic_set_all(void) local_irq_restore(flags); /* Use the atomic bitops to update the global mask */ - for (count = 0; count < sizeof mask * 8; ++count) { + for (count = 0; count < sizeof(mask) * 8; ++count) { if (mask & 0x01) set_bit(count, &smp_changes_mask); mask >>= 1; diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c index 40eee6cc4124..2e173d47b450 100644 --- a/arch/x86/kernel/cpu/mtrr/if.c +++ b/arch/x86/kernel/cpu/mtrr/if.c @@ -174,12 +174,12 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg) case MTRRIOC_SET_PAGE_ENTRY: case MTRRIOC_DEL_PAGE_ENTRY: case MTRRIOC_KILL_PAGE_ENTRY: - if (copy_from_user(&sentry, arg, sizeof sentry)) + if (copy_from_user(&sentry, arg, sizeof(sentry))) return -EFAULT; break; case MTRRIOC_GET_ENTRY: case MTRRIOC_GET_PAGE_ENTRY: - if (copy_from_user(&gentry, arg, sizeof gentry)) + if (copy_from_user(&gentry, arg, sizeof(gentry))) return -EFAULT; break; #ifdef CONFIG_COMPAT @@ -332,7 +332,7 @@ mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg) switch (cmd) { case MTRRIOC_GET_ENTRY: case MTRRIOC_GET_PAGE_ENTRY: - if (copy_to_user(arg, &gentry, sizeof gentry)) + if (copy_to_user(arg, &gentry, sizeof(gentry))) err = -EFAULT; break; #ifdef CONFIG_COMPAT diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c index d9ab49bed8af..0eda91f8eeac 100644 --- a/arch/x86/kernel/cpu/vmware.c +++ b/arch/x86/kernel/cpu/vmware.c @@ -77,7 +77,7 @@ static __init int setup_vmw_sched_clock(char *s) } early_param("no-vmw-sched-clock", setup_vmw_sched_clock); -static unsigned long long vmware_sched_clock(void) +static unsigned long long notrace vmware_sched_clock(void) { unsigned long long ns; diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c index 5e801c8c8ce7..374a52fa5296 100644 --- a/arch/x86/kernel/early_printk.c +++ b/arch/x86/kernel/early_printk.c @@ -213,8 +213,9 @@ static unsigned int mem32_serial_in(unsigned long addr, int offset) * early_pci_serial_init() * * This function is invoked when the early_printk param starts with "pciserial" - * The rest of the param should be ",B:D.F,baud" where B, D & F describe the - * location of a PCI device that must be a UART device. + * The rest of the param should be "[force],B:D.F,baud", where B, D & F describe + * the location of a PCI device that must be a UART device. "force" is optional + * and overrides the use of an UART device with a wrong PCI class code. */ static __init void early_pci_serial_init(char *s) { @@ -224,17 +225,23 @@ static __init void early_pci_serial_init(char *s) u32 classcode, bar0; u16 cmdreg; char *e; + int force = 0; - - /* - * First, part the param to get the BDF values - */ if (*s == ',') ++s; if (*s == 0) return; + /* Force the use of an UART device with wrong class code */ + if (!strncmp(s, "force,", 6)) { + force = 1; + s += 6; + } + + /* + * Part the param to get the BDF values + */ bus = (u8)simple_strtoul(s, &e, 16); s = e; if (*s != ':') @@ -253,7 +260,7 @@ static __init void early_pci_serial_init(char *s) s++; /* - * Second, find the device from the BDF + * Find the device from the BDF */ cmdreg = read_pci_config(bus, slot, func, PCI_COMMAND); classcode = read_pci_config(bus, slot, func, PCI_CLASS_REVISION); @@ -264,8 +271,10 @@ static __init void early_pci_serial_init(char *s) */ if (((classcode >> 16 != PCI_CLASS_COMMUNICATION_MODEM) && (classcode >> 16 != PCI_CLASS_COMMUNICATION_SERIAL)) || - (((classcode >> 8) & 0xff) != 0x02)) /* 16550 I/F at BAR0 */ - return; + (((classcode >> 8) & 0xff) != 0x02)) /* 16550 I/F at BAR0 */ { + if (!force) + return; + } /* * Determine if it is IO or memory mapped @@ -289,7 +298,7 @@ static __init void early_pci_serial_init(char *s) } /* - * Lastly, initialize the hardware + * Initialize the hardware */ if (*s) { if (strcmp(s, "nocfg") == 0) diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 5dc377dc9d7b..7663a8eb602b 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -385,7 +385,7 @@ static void __init copy_bootdata(char *real_mode_data) */ sme_map_bootdata(real_mode_data); - memcpy(&boot_params, real_mode_data, sizeof boot_params); + memcpy(&boot_params, real_mode_data, sizeof(boot_params)); sanitize_boot_params(&boot_params); cmd_line_ptr = get_cmd_line_ptr(); if (cmd_line_ptr) { diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index ab18e0884dc6..6135ae8ce036 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -199,14 +199,6 @@ static void sanity_check_ldt_mapping(struct mm_struct *mm) /* * If PTI is enabled, this maps the LDT into the kernelmode and * usermode tables for the given mm. - * - * There is no corresponding unmap function. Even if the LDT is freed, we - * leave the PTEs around until the slot is reused or the mm is destroyed. - * This is harmless: the LDT is always in ordinary memory, and no one will - * access the freed slot. - * - * If we wanted to unmap freed LDTs, we'd also need to do a flush to make - * it useful, and the flush would slow down modify_ldt(). */ static int map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) @@ -214,8 +206,7 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) unsigned long va; bool is_vmalloc; spinlock_t *ptl; - pgd_t *pgd; - int i; + int i, nr_pages; if (!static_cpu_has(X86_FEATURE_PTI)) return 0; @@ -229,16 +220,11 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) /* Check if the current mappings are sane */ sanity_check_ldt_mapping(mm); - /* - * Did we already have the top level entry allocated? We can't - * use pgd_none() for this because it doens't do anything on - * 4-level page table kernels. - */ - pgd = pgd_offset(mm, LDT_BASE_ADDR); - is_vmalloc = is_vmalloc_addr(ldt->entries); - for (i = 0; i * PAGE_SIZE < ldt->nr_entries * LDT_ENTRY_SIZE; i++) { + nr_pages = DIV_ROUND_UP(ldt->nr_entries * LDT_ENTRY_SIZE, PAGE_SIZE); + + for (i = 0; i < nr_pages; i++) { unsigned long offset = i << PAGE_SHIFT; const void *src = (char *)ldt->entries + offset; unsigned long pfn; @@ -272,13 +258,39 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) /* Propagate LDT mapping to the user page-table */ map_ldt_struct_to_user(mm); - va = (unsigned long)ldt_slot_va(slot); - flush_tlb_mm_range(mm, va, va + LDT_SLOT_STRIDE, PAGE_SHIFT, false); - ldt->slot = slot; return 0; } +static void unmap_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt) +{ + unsigned long va; + int i, nr_pages; + + if (!ldt) + return; + + /* LDT map/unmap is only required for PTI */ + if (!static_cpu_has(X86_FEATURE_PTI)) + return; + + nr_pages = DIV_ROUND_UP(ldt->nr_entries * LDT_ENTRY_SIZE, PAGE_SIZE); + + for (i = 0; i < nr_pages; i++) { + unsigned long offset = i << PAGE_SHIFT; + spinlock_t *ptl; + pte_t *ptep; + + va = (unsigned long)ldt_slot_va(ldt->slot) + offset; + ptep = get_locked_pte(mm, va, &ptl); + pte_clear(mm, va, ptep); + pte_unmap_unlock(ptep, ptl); + } + + va = (unsigned long)ldt_slot_va(ldt->slot); + flush_tlb_mm_range(mm, va, va + nr_pages * PAGE_SIZE, PAGE_SHIFT, false); +} + #else /* !CONFIG_PAGE_TABLE_ISOLATION */ static int @@ -286,6 +298,10 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot) { return 0; } + +static void unmap_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt) +{ +} #endif /* CONFIG_PAGE_TABLE_ISOLATION */ static void free_ldt_pgtables(struct mm_struct *mm) @@ -524,6 +540,7 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) } install_ldt(mm, new_ldt); + unmap_ldt_struct(mm, old_ldt); free_ldt_struct(old_ldt); error = 0; diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index ef688804f80d..4588414e2561 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -115,14 +115,14 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg) err = -EBADF; break; } - if (copy_from_user(®s, uregs, sizeof regs)) { + if (copy_from_user(®s, uregs, sizeof(regs))) { err = -EFAULT; break; } err = rdmsr_safe_regs_on_cpu(cpu, regs); if (err) break; - if (copy_to_user(uregs, ®s, sizeof regs)) + if (copy_to_user(uregs, ®s, sizeof(regs))) err = -EFAULT; break; @@ -131,14 +131,14 @@ static long msr_ioctl(struct file *file, unsigned int ioc, unsigned long arg) err = -EBADF; break; } - if (copy_from_user(®s, uregs, sizeof regs)) { + if (copy_from_user(®s, uregs, sizeof(regs))) { err = -EFAULT; break; } err = wrmsr_safe_regs_on_cpu(cpu, regs); if (err) break; - if (copy_to_user(uregs, ®s, sizeof regs)) + if (copy_to_user(uregs, ®s, sizeof(regs))) err = -EFAULT; break; diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index e4d4df37922a..c0e0101133f3 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -56,17 +56,6 @@ asm (".pushsection .entry.text, \"ax\"\n" ".type _paravirt_nop, @function\n\t" ".popsection"); -/* identity function, which can be inlined */ -u32 notrace _paravirt_ident_32(u32 x) -{ - return x; -} - -u64 notrace _paravirt_ident_64(u64 x) -{ - return x; -} - void __init default_banner(void) { printk(KERN_INFO "Booting paravirtualized kernel on %s\n", @@ -102,6 +91,12 @@ static unsigned paravirt_patch_call(void *insnbuf, const void *target, } #ifdef CONFIG_PARAVIRT_XXL +/* identity function, which can be inlined */ +u64 notrace _paravirt_ident_64(u64 x) +{ + return x; +} + static unsigned paravirt_patch_jmp(void *insnbuf, const void *target, unsigned long addr, unsigned len) { @@ -146,13 +141,11 @@ unsigned paravirt_patch_default(u8 type, void *insnbuf, else if (opfunc == _paravirt_nop) ret = 0; +#ifdef CONFIG_PARAVIRT_XXL /* identity functions just return their single argument */ - else if (opfunc == _paravirt_ident_32) - ret = paravirt_patch_ident_32(insnbuf, len); else if (opfunc == _paravirt_ident_64) ret = paravirt_patch_ident_64(insnbuf, len); -#ifdef CONFIG_PARAVIRT_XXL else if (type == PARAVIRT_PATCH(cpu.iret) || type == PARAVIRT_PATCH(cpu.usergs_sysret64)) /* If operation requires a jmp, then jmp */ @@ -309,13 +302,8 @@ struct pv_info pv_info = { #endif }; -#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) -/* 32-bit pagetable entries */ -#define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32) -#else /* 64-bit pagetable entries */ #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64) -#endif struct paravirt_patch_template pv_ops = { /* Init ops. */ @@ -483,5 +471,5 @@ NOKPROBE_SYMBOL(native_set_debugreg); NOKPROBE_SYMBOL(native_load_idt); #endif -EXPORT_SYMBOL_GPL(pv_ops); +EXPORT_SYMBOL(pv_ops); EXPORT_SYMBOL_GPL(pv_info); diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c index 6368c22fa1fa..de138d3912e4 100644 --- a/arch/x86/kernel/paravirt_patch_32.c +++ b/arch/x86/kernel/paravirt_patch_32.c @@ -10,24 +10,18 @@ DEF_NATIVE(cpu, iret, "iret"); DEF_NATIVE(mmu, read_cr2, "mov %cr2, %eax"); DEF_NATIVE(mmu, write_cr3, "mov %eax, %cr3"); DEF_NATIVE(mmu, read_cr3, "mov %cr3, %eax"); -#endif - -#if defined(CONFIG_PARAVIRT_SPINLOCKS) -DEF_NATIVE(lock, queued_spin_unlock, "movb $0, (%eax)"); -DEF_NATIVE(lock, vcpu_is_preempted, "xor %eax, %eax"); -#endif - -unsigned paravirt_patch_ident_32(void *insnbuf, unsigned len) -{ - /* arg in %eax, return in %eax */ - return 0; -} unsigned paravirt_patch_ident_64(void *insnbuf, unsigned len) { /* arg in %edx:%eax, return in %edx:%eax */ return 0; } +#endif + +#if defined(CONFIG_PARAVIRT_SPINLOCKS) +DEF_NATIVE(lock, queued_spin_unlock, "movb $0, (%eax)"); +DEF_NATIVE(lock, vcpu_is_preempted, "xor %eax, %eax"); +#endif extern bool pv_is_native_spin_unlock(void); extern bool pv_is_native_vcpu_is_preempted(void); diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c index 7ca9cb726f4d..9d9e04b31077 100644 --- a/arch/x86/kernel/paravirt_patch_64.c +++ b/arch/x86/kernel/paravirt_patch_64.c @@ -15,27 +15,19 @@ DEF_NATIVE(cpu, wbinvd, "wbinvd"); DEF_NATIVE(cpu, usergs_sysret64, "swapgs; sysretq"); DEF_NATIVE(cpu, swapgs, "swapgs"); -#endif - -DEF_NATIVE(, mov32, "mov %edi, %eax"); DEF_NATIVE(, mov64, "mov %rdi, %rax"); -#if defined(CONFIG_PARAVIRT_SPINLOCKS) -DEF_NATIVE(lock, queued_spin_unlock, "movb $0, (%rdi)"); -DEF_NATIVE(lock, vcpu_is_preempted, "xor %eax, %eax"); -#endif - -unsigned paravirt_patch_ident_32(void *insnbuf, unsigned len) -{ - return paravirt_patch_insns(insnbuf, len, - start__mov32, end__mov32); -} - unsigned paravirt_patch_ident_64(void *insnbuf, unsigned len) { return paravirt_patch_insns(insnbuf, len, start__mov64, end__mov64); } +#endif + +#if defined(CONFIG_PARAVIRT_SPINLOCKS) +DEF_NATIVE(lock, queued_spin_unlock, "movb $0, (%rdi)"); +DEF_NATIVE(lock, vcpu_is_preempted, "xor %eax, %eax"); +#endif extern bool pv_is_native_spin_unlock(void); extern bool pv_is_native_vcpu_is_preempted(void); diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 31b4755369f0..0e0b4288a4b2 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -701,10 +701,10 @@ static void __set_personality_x32(void) current->mm->context.ia32_compat = TIF_X32; current->personality &= ~READ_IMPLIES_EXEC; /* - * in_compat_syscall() uses the presence of the x32 syscall bit + * in_32bit_syscall() uses the presence of the x32 syscall bit * flag to determine compat status. The x86 mmap() code relies on * the syscall bitness so set x32 syscall bit right here to make - * in_compat_syscall() work during exec(). + * in_32bit_syscall() work during exec(). * * Pretend to come from a x32 execve. */ diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index 6a78d4b36a79..f7476ce23b6e 100644 --- a/arch/x86/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c @@ -105,7 +105,7 @@ out: static void find_start_end(unsigned long addr, unsigned long flags, unsigned long *begin, unsigned long *end) { - if (!in_compat_syscall() && (flags & MAP_32BIT)) { + if (!in_32bit_syscall() && (flags & MAP_32BIT)) { /* This is usually used needed to map code in small model, so it needs to be in the first 31bit. Limit it to that. This means we need to move the @@ -122,7 +122,7 @@ static void find_start_end(unsigned long addr, unsigned long flags, } *begin = get_mmap_base(1); - if (in_compat_syscall()) + if (in_32bit_syscall()) *end = task_size_32bit(); else *end = task_size_64bit(addr > DEFAULT_MAP_WINDOW); @@ -193,7 +193,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, return addr; /* for MAP_32BIT mappings we force the legacy mmap base */ - if (!in_compat_syscall() && (flags & MAP_32BIT)) + if (!in_32bit_syscall() && (flags & MAP_32BIT)) goto bottomup; /* requesting a specific address */ @@ -217,9 +217,10 @@ get_unmapped_area: * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area * in the full address space. * - * !in_compat_syscall() check to avoid high addresses for x32. + * !in_32bit_syscall() check to avoid high addresses for x32 + * (and make it no op on native i386). */ - if (addr > DEFAULT_MAP_WINDOW && !in_compat_syscall()) + if (addr > DEFAULT_MAP_WINDOW && !in_32bit_syscall()) info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW; info.align_mask = 0; diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 8f6dcd88202e..9b7c4ca8f0a7 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -306,7 +306,7 @@ __visible void __noreturn handle_stack_overflow(const char *message, die(message, regs, 0); /* Be absolutely certain we don't return. */ - panic(message); + panic("%s", message); } #endif diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c index 1eae5af491c2..891a75dbc131 100644 --- a/arch/x86/kernel/vsmp_64.c +++ b/arch/x86/kernel/vsmp_64.c @@ -26,65 +26,8 @@ #define TOPOLOGY_REGISTER_OFFSET 0x10 -#if defined CONFIG_PCI && defined CONFIG_PARAVIRT_XXL -/* - * Interrupt control on vSMPowered systems: - * ~AC is a shadow of IF. If IF is 'on' AC should be 'off' - * and vice versa. - */ - -asmlinkage __visible unsigned long vsmp_save_fl(void) -{ - unsigned long flags = native_save_fl(); - - if (!(flags & X86_EFLAGS_IF) || (flags & X86_EFLAGS_AC)) - flags &= ~X86_EFLAGS_IF; - return flags; -} -PV_CALLEE_SAVE_REGS_THUNK(vsmp_save_fl); - -__visible void vsmp_restore_fl(unsigned long flags) -{ - if (flags & X86_EFLAGS_IF) - flags &= ~X86_EFLAGS_AC; - else - flags |= X86_EFLAGS_AC; - native_restore_fl(flags); -} -PV_CALLEE_SAVE_REGS_THUNK(vsmp_restore_fl); - -asmlinkage __visible void vsmp_irq_disable(void) -{ - unsigned long flags = native_save_fl(); - - native_restore_fl((flags & ~X86_EFLAGS_IF) | X86_EFLAGS_AC); -} -PV_CALLEE_SAVE_REGS_THUNK(vsmp_irq_disable); - -asmlinkage __visible void vsmp_irq_enable(void) -{ - unsigned long flags = native_save_fl(); - - native_restore_fl((flags | X86_EFLAGS_IF) & (~X86_EFLAGS_AC)); -} -PV_CALLEE_SAVE_REGS_THUNK(vsmp_irq_enable); - -static unsigned __init vsmp_patch(u8 type, void *ibuf, - unsigned long addr, unsigned len) -{ - switch (type) { - case PARAVIRT_PATCH(irq.irq_enable): - case PARAVIRT_PATCH(irq.irq_disable): - case PARAVIRT_PATCH(irq.save_fl): - case PARAVIRT_PATCH(irq.restore_fl): - return paravirt_patch_default(type, ibuf, addr, len); - default: - return native_patch(type, ibuf, addr, len); - } - -} - -static void __init set_vsmp_pv_ops(void) +#ifdef CONFIG_PCI +static void __init set_vsmp_ctl(void) { void __iomem *address; unsigned int cap, ctl, cfg; @@ -109,28 +52,12 @@ static void __init set_vsmp_pv_ops(void) } #endif - if (cap & ctl & (1 << 4)) { - /* Setup irq ops and turn on vSMP IRQ fastpath handling */ - pv_ops.irq.irq_disable = PV_CALLEE_SAVE(vsmp_irq_disable); - pv_ops.irq.irq_enable = PV_CALLEE_SAVE(vsmp_irq_enable); - pv_ops.irq.save_fl = PV_CALLEE_SAVE(vsmp_save_fl); - pv_ops.irq.restore_fl = PV_CALLEE_SAVE(vsmp_restore_fl); - pv_ops.init.patch = vsmp_patch; - ctl &= ~(1 << 4); - } writel(ctl, address + 4); ctl = readl(address + 4); pr_info("vSMP CTL: control set to:0x%08x\n", ctl); early_iounmap(address, 8); } -#else -static void __init set_vsmp_pv_ops(void) -{ -} -#endif - -#ifdef CONFIG_PCI static int is_vsmp = -1; static void __init detect_vsmp_box(void) @@ -164,11 +91,14 @@ static int is_vsmp_box(void) { return 0; } +static void __init set_vsmp_ctl(void) +{ +} #endif static void __init vsmp_cap_cpus(void) { -#if !defined(CONFIG_X86_VSMP) && defined(CONFIG_SMP) +#if !defined(CONFIG_X86_VSMP) && defined(CONFIG_SMP) && defined(CONFIG_PCI) void __iomem *address; unsigned int cfg, topology, node_shift, maxcpus; @@ -221,6 +151,6 @@ void __init vsmp_init(void) vsmp_cap_cpus(); - set_vsmp_pv_ops(); + set_vsmp_ctl(); return; } diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 34edf198708f..78e430f4e15c 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1509,7 +1509,7 @@ static int read_interrupt_descriptor(struct x86_emulate_ctxt *ctxt, return emulate_gp(ctxt, index << 3 | 0x2); addr = dt.address + index * 8; - return linear_read_system(ctxt, addr, desc, sizeof *desc); + return linear_read_system(ctxt, addr, desc, sizeof(*desc)); } static void get_descriptor_table_ptr(struct x86_emulate_ctxt *ctxt, @@ -1522,7 +1522,7 @@ static void get_descriptor_table_ptr(struct x86_emulate_ctxt *ctxt, struct desc_struct desc; u16 sel; - memset (dt, 0, sizeof *dt); + memset(dt, 0, sizeof(*dt)); if (!ops->get_segment(ctxt, &sel, &desc, &base3, VCPU_SREG_LDTR)) return; @@ -1586,7 +1586,7 @@ static int write_segment_descriptor(struct x86_emulate_ctxt *ctxt, if (rc != X86EMUL_CONTINUE) return rc; - return linear_write_system(ctxt, addr, desc, sizeof *desc); + return linear_write_system(ctxt, addr, desc, sizeof(*desc)); } static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt, @@ -1604,7 +1604,7 @@ static int __load_segment_descriptor(struct x86_emulate_ctxt *ctxt, u16 dummy; u32 base3 = 0; - memset(&seg_desc, 0, sizeof seg_desc); + memset(&seg_desc, 0, sizeof(seg_desc)); if (ctxt->mode == X86EMUL_MODE_REAL) { /* set real mode segment descriptor (keep limit etc. for @@ -3075,17 +3075,17 @@ static int task_switch_16(struct x86_emulate_ctxt *ctxt, int ret; u32 new_tss_base = get_desc_base(new_desc); - ret = linear_read_system(ctxt, old_tss_base, &tss_seg, sizeof tss_seg); + ret = linear_read_system(ctxt, old_tss_base, &tss_seg, sizeof(tss_seg)); if (ret != X86EMUL_CONTINUE) return ret; save_state_to_tss16(ctxt, &tss_seg); - ret = linear_write_system(ctxt, old_tss_base, &tss_seg, sizeof tss_seg); + ret = linear_write_system(ctxt, old_tss_base, &tss_seg, sizeof(tss_seg)); if (ret != X86EMUL_CONTINUE) return ret; - ret = linear_read_system(ctxt, new_tss_base, &tss_seg, sizeof tss_seg); + ret = linear_read_system(ctxt, new_tss_base, &tss_seg, sizeof(tss_seg)); if (ret != X86EMUL_CONTINUE) return ret; @@ -3094,7 +3094,7 @@ static int task_switch_16(struct x86_emulate_ctxt *ctxt, ret = linear_write_system(ctxt, new_tss_base, &tss_seg.prev_task_link, - sizeof tss_seg.prev_task_link); + sizeof(tss_seg.prev_task_link)); if (ret != X86EMUL_CONTINUE) return ret; } @@ -3216,7 +3216,7 @@ static int task_switch_32(struct x86_emulate_ctxt *ctxt, u32 eip_offset = offsetof(struct tss_segment_32, eip); u32 ldt_sel_offset = offsetof(struct tss_segment_32, ldt_selector); - ret = linear_read_system(ctxt, old_tss_base, &tss_seg, sizeof tss_seg); + ret = linear_read_system(ctxt, old_tss_base, &tss_seg, sizeof(tss_seg)); if (ret != X86EMUL_CONTINUE) return ret; @@ -3228,7 +3228,7 @@ static int task_switch_32(struct x86_emulate_ctxt *ctxt, if (ret != X86EMUL_CONTINUE) return ret; - ret = linear_read_system(ctxt, new_tss_base, &tss_seg, sizeof tss_seg); + ret = linear_read_system(ctxt, new_tss_base, &tss_seg, sizeof(tss_seg)); if (ret != X86EMUL_CONTINUE) return ret; @@ -3237,7 +3237,7 @@ static int task_switch_32(struct x86_emulate_ctxt *ctxt, ret = linear_write_system(ctxt, new_tss_base, &tss_seg.prev_task_link, - sizeof tss_seg.prev_task_link); + sizeof(tss_seg.prev_task_link)); if (ret != X86EMUL_CONTINUE) return ret; } diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index 3cd227ff807f..89db20f8cb70 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -2409,7 +2409,7 @@ int kvm_apic_set_state(struct kvm_vcpu *vcpu, struct kvm_lapic_state *s) r = kvm_apic_state_fixup(vcpu, s, true); if (r) return r; - memcpy(vcpu->arch.apic->regs, s->regs, sizeof *s); + memcpy(vcpu->arch.apic->regs, s->regs, sizeof(*s)); recalculate_apic_map(vcpu->kvm); kvm_apic_set_version(vcpu); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 66d66d77caee..5cd5647120f2 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2924,7 +2924,7 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs, unsigned size; r = -EFAULT; - if (copy_from_user(&msrs, user_msrs, sizeof msrs)) + if (copy_from_user(&msrs, user_msrs, sizeof(msrs))) goto out; r = -E2BIG; @@ -3091,11 +3091,11 @@ long kvm_arch_dev_ioctl(struct file *filp, unsigned n; r = -EFAULT; - if (copy_from_user(&msr_list, user_msr_list, sizeof msr_list)) + if (copy_from_user(&msr_list, user_msr_list, sizeof(msr_list))) goto out; n = msr_list.nmsrs; msr_list.nmsrs = num_msrs_to_save + num_emulated_msrs; - if (copy_to_user(user_msr_list, &msr_list, sizeof msr_list)) + if (copy_to_user(user_msr_list, &msr_list, sizeof(msr_list))) goto out; r = -E2BIG; if (n < msr_list.nmsrs) @@ -3117,7 +3117,7 @@ long kvm_arch_dev_ioctl(struct file *filp, struct kvm_cpuid2 cpuid; r = -EFAULT; - if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid)) + if (copy_from_user(&cpuid, cpuid_arg, sizeof(cpuid))) goto out; r = kvm_dev_ioctl_get_cpuid(&cpuid, cpuid_arg->entries, @@ -3126,7 +3126,7 @@ long kvm_arch_dev_ioctl(struct file *filp, goto out; r = -EFAULT; - if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid)) + if (copy_to_user(cpuid_arg, &cpuid, sizeof(cpuid))) goto out; r = 0; break; @@ -3894,7 +3894,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, struct kvm_interrupt irq; r = -EFAULT; - if (copy_from_user(&irq, argp, sizeof irq)) + if (copy_from_user(&irq, argp, sizeof(irq))) goto out; r = kvm_vcpu_ioctl_interrupt(vcpu, &irq); break; @@ -3912,7 +3912,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, struct kvm_cpuid cpuid; r = -EFAULT; - if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid)) + if (copy_from_user(&cpuid, cpuid_arg, sizeof(cpuid))) goto out; r = kvm_vcpu_ioctl_set_cpuid(vcpu, &cpuid, cpuid_arg->entries); break; @@ -3922,7 +3922,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, struct kvm_cpuid2 cpuid; r = -EFAULT; - if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid)) + if (copy_from_user(&cpuid, cpuid_arg, sizeof(cpuid))) goto out; r = kvm_vcpu_ioctl_set_cpuid2(vcpu, &cpuid, cpuid_arg->entries); @@ -3933,14 +3933,14 @@ long kvm_arch_vcpu_ioctl(struct file *filp, struct kvm_cpuid2 cpuid; r = -EFAULT; - if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid)) + if (copy_from_user(&cpuid, cpuid_arg, sizeof(cpuid))) goto out; r = kvm_vcpu_ioctl_get_cpuid2(vcpu, &cpuid, cpuid_arg->entries); if (r) goto out; r = -EFAULT; - if (copy_to_user(cpuid_arg, &cpuid, sizeof cpuid)) + if (copy_to_user(cpuid_arg, &cpuid, sizeof(cpuid))) goto out; r = 0; break; @@ -3961,13 +3961,13 @@ long kvm_arch_vcpu_ioctl(struct file *filp, struct kvm_tpr_access_ctl tac; r = -EFAULT; - if (copy_from_user(&tac, argp, sizeof tac)) + if (copy_from_user(&tac, argp, sizeof(tac))) goto out; r = vcpu_ioctl_tpr_access_reporting(vcpu, &tac); if (r) goto out; r = -EFAULT; - if (copy_to_user(argp, &tac, sizeof tac)) + if (copy_to_user(argp, &tac, sizeof(tac))) goto out; r = 0; break; @@ -3980,7 +3980,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, if (!lapic_in_kernel(vcpu)) goto out; r = -EFAULT; - if (copy_from_user(&va, argp, sizeof va)) + if (copy_from_user(&va, argp, sizeof(va))) goto out; idx = srcu_read_lock(&vcpu->kvm->srcu); r = kvm_lapic_set_vapic_addr(vcpu, va.vapic_addr); @@ -3991,7 +3991,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, u64 mcg_cap; r = -EFAULT; - if (copy_from_user(&mcg_cap, argp, sizeof mcg_cap)) + if (copy_from_user(&mcg_cap, argp, sizeof(mcg_cap))) goto out; r = kvm_vcpu_ioctl_x86_setup_mce(vcpu, mcg_cap); break; @@ -4000,7 +4000,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp, struct kvm_x86_mce mce; r = -EFAULT; - if (copy_from_user(&mce, argp, sizeof mce)) + if (copy_from_user(&mce, argp, sizeof(mce))) goto out; r = kvm_vcpu_ioctl_x86_set_mce(vcpu, &mce); break; @@ -4536,7 +4536,7 @@ long kvm_arch_vm_ioctl(struct file *filp, if (kvm->created_vcpus) goto set_identity_unlock; r = -EFAULT; - if (copy_from_user(&ident_addr, argp, sizeof ident_addr)) + if (copy_from_user(&ident_addr, argp, sizeof(ident_addr))) goto set_identity_unlock; r = kvm_vm_ioctl_set_identity_map_addr(kvm, ident_addr); set_identity_unlock: @@ -4620,7 +4620,7 @@ set_identity_unlock: if (r) goto get_irqchip_out; r = -EFAULT; - if (copy_to_user(argp, chip, sizeof *chip)) + if (copy_to_user(argp, chip, sizeof(*chip))) goto get_irqchip_out; r = 0; get_irqchip_out: @@ -4666,7 +4666,7 @@ set_identity_unlock: } case KVM_SET_PIT: { r = -EFAULT; - if (copy_from_user(&u.ps, argp, sizeof u.ps)) + if (copy_from_user(&u.ps, argp, sizeof(u.ps))) goto out; r = -ENXIO; if (!kvm->arch.vpit) @@ -8205,7 +8205,7 @@ static void __get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) sregs->efer = vcpu->arch.efer; sregs->apic_base = kvm_get_apic_base(vcpu); - memset(sregs->interrupt_bitmap, 0, sizeof sregs->interrupt_bitmap); + memset(sregs->interrupt_bitmap, 0, sizeof(sregs->interrupt_bitmap)); if (vcpu->arch.interrupt.injected && !vcpu->arch.interrupt.soft) set_bit(vcpu->arch.interrupt.nr, @@ -8509,7 +8509,7 @@ int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) fpu->last_opcode = fxsave->fop; fpu->last_ip = fxsave->rip; fpu->last_dp = fxsave->rdp; - memcpy(fpu->xmm, fxsave->xmm_space, sizeof fxsave->xmm_space); + memcpy(fpu->xmm, fxsave->xmm_space, sizeof(fxsave->xmm_space)); vcpu_put(vcpu); return 0; @@ -8530,7 +8530,7 @@ int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu) fxsave->fop = fpu->last_opcode; fxsave->rip = fpu->last_ip; fxsave->rdp = fpu->last_dp; - memcpy(fxsave->xmm_space, fpu->xmm, sizeof fxsave->xmm_space); + memcpy(fxsave->xmm_space, fpu->xmm, sizeof(fxsave->xmm_space)); vcpu_put(vcpu); return 0; diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c index 00b296617ca4..92e4c4b85bba 100644 --- a/arch/x86/mm/hugetlbpage.c +++ b/arch/x86/mm/hugetlbpage.c @@ -92,7 +92,7 @@ static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *file, * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area * in the full address space. */ - info.high_limit = in_compat_syscall() ? + info.high_limit = in_32bit_syscall() ? task_size_32bit() : task_size_64bit(addr > DEFAULT_MAP_WINDOW); info.align_mask = PAGE_MASK & ~huge_page_mask(h); @@ -116,7 +116,7 @@ static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, * If hint address is above DEFAULT_MAP_WINDOW, look for unmapped area * in the full address space. */ - if (addr > DEFAULT_MAP_WINDOW && !in_compat_syscall()) + if (addr > DEFAULT_MAP_WINDOW && !in_32bit_syscall()) info.high_limit += TASK_SIZE_MAX - DEFAULT_MAP_WINDOW; info.align_mask = PAGE_MASK & ~huge_page_mask(h); diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c index 1e95d57760cf..db3165714521 100644 --- a/arch/x86/mm/mmap.c +++ b/arch/x86/mm/mmap.c @@ -166,7 +166,7 @@ unsigned long get_mmap_base(int is_legacy) struct mm_struct *mm = current->mm; #ifdef CONFIG_HAVE_ARCH_COMPAT_MMAP_BASES - if (in_compat_syscall()) { + if (in_32bit_syscall()) { return is_legacy ? mm->mmap_compat_legacy_base : mm->mmap_compat_base; } diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index a80fdd7fb40f..abffa0be80da 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -399,9 +399,17 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt) n = simple_strtoul(emu_cmdline, &emu_cmdline, 0); ret = -1; for_each_node_mask(i, physnode_mask) { + /* + * The reason we pass in blk[0] is due to + * numa_remove_memblk_from() called by + * emu_setup_memblk() will delete entry 0 + * and then move everything else up in the pi.blk + * array. Therefore we should always be looking + * at blk[0]. + */ ret = split_nodes_size_interleave_uniform(&ei, &pi, - pi.blk[i].start, pi.blk[i].end, 0, - n, &pi.blk[i], nid); + pi.blk[0].start, pi.blk[0].end, 0, + n, &pi.blk[0], nid); if (ret < 0) break; if (ret < n) { diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index f799076e3d57..db7a10082238 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -2309,9 +2309,13 @@ void __kernel_map_pages(struct page *page, int numpages, int enable) /* * We should perform an IPI and flush all tlbs, - * but that can deadlock->flush only current cpu: + * but that can deadlock->flush only current cpu. + * Preemption needs to be disabled around __flush_tlb_all() due to + * CR3 reload in __native_flush_tlb(). */ + preempt_disable(); __flush_tlb_all(); + preempt_enable(); arch_flush_lazy_mmu_mode(); } diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index 0b08067c45f3..b629f6992d9f 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -130,7 +130,7 @@ static void regex_init(int use_real_mode) REG_EXTENDED|REG_NOSUB); if (err) { - regerror(err, &sym_regex_c[i], errbuf, sizeof errbuf); + regerror(err, &sym_regex_c[i], errbuf, sizeof(errbuf)); die("%s", errbuf); } } @@ -405,7 +405,7 @@ static void read_shdrs(FILE *fp) } for (i = 0; i < ehdr.e_shnum; i++) { struct section *sec = &secs[i]; - if (fread(&shdr, sizeof shdr, 1, fp) != 1) + if (fread(&shdr, sizeof(shdr), 1, fp) != 1) die("Cannot read ELF section headers %d/%d: %s\n", i, ehdr.e_shnum, strerror(errno)); sec->shdr.sh_name = elf_word_to_cpu(shdr.sh_name); diff --git a/arch/x86/um/asm/elf.h b/arch/x86/um/asm/elf.h index 413f3519d9a1..c907b20d4993 100644 --- a/arch/x86/um/asm/elf.h +++ b/arch/x86/um/asm/elf.h @@ -194,7 +194,7 @@ extern unsigned long um_vdso_addr; typedef unsigned long elf_greg_t; -#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) +#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) typedef elf_greg_t elf_gregset_t[ELF_NGREG]; typedef struct user_i387_struct elf_fpregset_t; diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c index 0d7b3ae4960b..a5d7ed125337 100644 --- a/arch/x86/xen/mmu_pv.c +++ b/arch/x86/xen/mmu_pv.c @@ -1905,7 +1905,7 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) init_top_pgt[0] = __pgd(0); /* Pre-constructed entries are in pfn, so convert to mfn */ - /* L4[272] -> level3_ident_pgt */ + /* L4[273] -> level3_ident_pgt */ /* L4[511] -> level3_kernel_pgt */ convert_pfn_mfn(init_top_pgt); @@ -1925,8 +1925,8 @@ void __init xen_setup_kernel_pagetable(pgd_t *pgd, unsigned long max_pfn) addr[0] = (unsigned long)pgd; addr[1] = (unsigned long)l3; addr[2] = (unsigned long)l2; - /* Graft it onto L4[272][0]. Note that we creating an aliasing problem: - * Both L4[272][0] and L4[511][510] have entries that point to the same + /* Graft it onto L4[273][0]. Note that we creating an aliasing problem: + * Both L4[273][0] and L4[511][510] have entries that point to the same * L2 (PMD) tables. Meaning that if you modify it in __va space * it will be also modified in the __ka space! (But if you just * modify the PMD table to point to other PTE's or none, then you diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c index b06731705529..055e37e43541 100644 --- a/arch/x86/xen/p2m.c +++ b/arch/x86/xen/p2m.c @@ -656,8 +656,7 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn) /* * The interface requires atomic updates on p2m elements. - * xen_safe_write_ulong() is using __put_user which does an atomic - * store via asm(). + * xen_safe_write_ulong() is using an atomic store via asm(). */ if (likely(!xen_safe_write_ulong(xen_p2m_addr + pfn, mfn))) return true; diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c index 441c88262169..1c8a8816a402 100644 --- a/arch/x86/xen/spinlock.c +++ b/arch/x86/xen/spinlock.c @@ -9,6 +9,7 @@ #include <linux/log2.h> #include <linux/gfp.h> #include <linux/slab.h> +#include <linux/atomic.h> #include <asm/paravirt.h> #include <asm/qspinlock.h> @@ -21,6 +22,7 @@ static DEFINE_PER_CPU(int, lock_kicker_irq) = -1; static DEFINE_PER_CPU(char *, irq_name); +static DEFINE_PER_CPU(atomic_t, xen_qlock_wait_nest); static bool xen_pvspin = true; static void xen_qlock_kick(int cpu) @@ -39,25 +41,25 @@ static void xen_qlock_kick(int cpu) */ static void xen_qlock_wait(u8 *byte, u8 val) { - unsigned long flags; int irq = __this_cpu_read(lock_kicker_irq); + atomic_t *nest_cnt = this_cpu_ptr(&xen_qlock_wait_nest); /* If kicker interrupts not initialized yet, just spin */ if (irq == -1 || in_nmi()) return; - /* Guard against reentry. */ - local_irq_save(flags); + /* Detect reentry. */ + atomic_inc(nest_cnt); - /* If irq pending already clear it. */ - if (xen_test_irq_pending(irq)) { + /* If irq pending already and no nested call clear it. */ + if (atomic_read(nest_cnt) == 1 && xen_test_irq_pending(irq)) { xen_clear_irq_pending(irq); } else if (READ_ONCE(*byte) == val) { /* Block until irq becomes pending (or a spurious wakeup) */ xen_poll_irq(irq); } - local_irq_restore(flags); + atomic_dec(nest_cnt); } static irqreturn_t dummy_handler(int irq, void *dev_id) diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 60c141af222b..d29b7365da8d 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -1,7 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 -config ZONE_DMA - def_bool y - config XTENSA def_bool y select ARCH_HAS_SG_CHAIN diff --git a/arch/xtensa/boot/Makefile b/arch/xtensa/boot/Makefile index dc9e0ba7122c..294846117fc2 100644 --- a/arch/xtensa/boot/Makefile +++ b/arch/xtensa/boot/Makefile @@ -33,7 +33,7 @@ uImage: $(obj)/uImage boot-elf boot-redboot: $(addprefix $(obj)/,$(subdir-y)) $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS) -OBJCOPYFLAGS = --strip-all -R .comment -R .note.gnu.build-id -O binary +OBJCOPYFLAGS = --strip-all -R .comment -R .notes -O binary vmlinux.bin: vmlinux FORCE $(call if_changed,objcopy) diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h index be9bfd9aa865..34a23016dd14 100644 --- a/arch/xtensa/include/asm/processor.h +++ b/arch/xtensa/include/asm/processor.h @@ -23,7 +23,11 @@ # error Linux requires the Xtensa Windowed Registers Option. #endif -#define ARCH_SLAB_MINALIGN XCHAL_DATA_WIDTH +/* Xtensa ABI requires stack alignment to be at least 16 */ + +#define STACK_ALIGN (XCHAL_DATA_WIDTH > 16 ? XCHAL_DATA_WIDTH : 16) + +#define ARCH_SLAB_MINALIGN STACK_ALIGN /* * User space process size: 1 GB. diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S index 2f76118ecf62..9053a5622d2c 100644 --- a/arch/xtensa/kernel/head.S +++ b/arch/xtensa/kernel/head.S @@ -88,9 +88,12 @@ _SetupMMU: initialize_mmu #if defined(CONFIG_MMU) && XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY rsr a2, excsave1 - movi a3, 0x08000000 + movi a3, XCHAL_KSEG_PADDR + bltu a2, a3, 1f + sub a2, a2, a3 + movi a3, XCHAL_KSEG_SIZE bgeu a2, a3, 1f - movi a3, 0xd0000000 + movi a3, XCHAL_KSEG_CACHED_VADDR add a2, a2, a3 wsr a2, excsave1 1: diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index b727b18a68ac..b80a430453b1 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -131,6 +131,7 @@ SECTIONS .fixup : { *(.fixup) } EXCEPTION_TABLE(16) + NOTES /* Data section */ _sdata = .; @@ -296,38 +297,11 @@ SECTIONS _end = .; - .xt.lit : { *(.xt.lit) } - .xt.prop : { *(.xt.prop) } - - .debug 0 : { *(.debug) } - .line 0 : { *(.line) } - .debug_srcinfo 0 : { *(.debug_srcinfo) } - .debug_sfnames 0 : { *(.debug_sfnames) } - .debug_aranges 0 : { *(.debug_aranges) } - .debug_pubnames 0 : { *(.debug_pubnames) } - .debug_info 0 : { *(.debug_info) } - .debug_abbrev 0 : { *(.debug_abbrev) } - .debug_line 0 : { *(.debug_line) } - .debug_frame 0 : { *(.debug_frame) } - .debug_str 0 : { *(.debug_str) } - .debug_loc 0 : { *(.debug_loc) } - .debug_macinfo 0 : { *(.debug_macinfo) } - .debug_weaknames 0 : { *(.debug_weaknames) } - .debug_funcnames 0 : { *(.debug_funcnames) } - .debug_typenames 0 : { *(.debug_typenames) } - .debug_varnames 0 : { *(.debug_varnames) } - - .xt.insn 0 : - { - *(.xt.insn) - *(.gnu.linkonce.x*) - } + DWARF_DEBUG - .xt.lit 0 : - { - *(.xt.lit) - *(.gnu.linkonce.p*) - } + .xt.prop 0 : { KEEP(*(.xt.prop .xt.prop.* .gnu.linkonce.prop.*)) } + .xt.insn 0 : { KEEP(*(.xt.insn .xt.insn.* .gnu.linkonce.x*)) } + .xt.lit 0 : { KEEP(*(.xt.lit .xt.lit.* .gnu.linkonce.p*)) } /* Sections to be discarded */ DISCARDS diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index 9750a48f491b..30a48bba4a47 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -71,7 +71,7 @@ void __init zones_init(void) { /* All pages are DMA-able, so we put them all in the DMA zone. */ unsigned long zones_size[MAX_NR_ZONES] = { - [ZONE_DMA] = max_low_pfn - ARCH_PFN_OFFSET, + [ZONE_NORMAL] = max_low_pfn - ARCH_PFN_OFFSET, #ifdef CONFIG_HIGHMEM [ZONE_HIGHMEM] = max_pfn - max_low_pfn, #endif |
