diff options
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/Makefile | 4 | ||||
| -rw-r--r-- | arch/arc/include/asm/pgtable.h | 2 | ||||
| -rw-r--r-- | arch/arc/kernel/setup.c | 8 | ||||
| -rw-r--r-- | arch/arc/kernel/time.c | 48 | ||||
| -rw-r--r-- | arch/arc/mm/dma.c | 3 | ||||
| -rw-r--r-- | arch/arc/mm/fault.c | 2 | ||||
| -rw-r--r-- | arch/arc/mm/ioremap.c | 2 |
7 files changed, 25 insertions, 44 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile index 85814e74677d..601ed173080b 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -74,9 +74,7 @@ endif ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE # Generic build system uses -O2, we want -O3 # Note: No need to add to cflags-y as that happens anyways -# -# Disable the false maybe-uninitialized warings gcc spits out at -O3 -ARCH_CFLAGS += -O3 $(call cc-disable-warning,maybe-uninitialized,) +ARCH_CFLAGS += -O3 endif # small data is default for elf32 tool-chain. If not usable, disable it diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h index 858f98ef7f1b..0f92d97432a2 100644 --- a/arch/arc/include/asm/pgtable.h +++ b/arch/arc/include/asm/pgtable.h @@ -110,7 +110,7 @@ #define ___DEF (_PAGE_PRESENT | _PAGE_CACHEABLE) /* Set of bits not changed in pte_modify */ -#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY) +#define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_SPECIAL) /* More Abbrevaited helpers */ #define PAGE_U_NONE __pgprot(___DEF) diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index 2ee7a4d758a8..a946400a86d0 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -14,7 +14,7 @@ #include <linux/module.h> #include <linux/cpu.h> #include <linux/of_fdt.h> -#include <linux/of_platform.h> +#include <linux/of.h> #include <linux/cache.h> #include <asm/sections.h> #include <asm/arcregs.h> @@ -435,12 +435,6 @@ void __init setup_arch(char **cmdline_p) static int __init customize_machine(void) { - /* - * Traverses flattened DeviceTree - registering platform devices - * (if any) complete with their resources - */ - of_platform_default_populate(NULL, NULL, NULL); - if (machine_desc->init_machine) machine_desc->init_machine(); diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c index 98f22d2eb563..f927b8dc6edd 100644 --- a/arch/arc/kernel/time.c +++ b/arch/arc/kernel/time.c @@ -296,30 +296,23 @@ static irqreturn_t timer_irq_handler(int irq, void *dev_id) return IRQ_HANDLED; } -static int arc_timer_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) + +static int arc_timer_starting_cpu(unsigned int cpu) { struct clock_event_device *evt = this_cpu_ptr(&arc_clockevent_device); evt->cpumask = cpumask_of(smp_processor_id()); - switch (action & ~CPU_TASKS_FROZEN) { - case CPU_STARTING: - clockevents_config_and_register(evt, arc_timer_freq, - 0, ULONG_MAX); - enable_percpu_irq(arc_timer_irq, 0); - break; - case CPU_DYING: - disable_percpu_irq(arc_timer_irq); - break; - } - - return NOTIFY_OK; + clockevents_config_and_register(evt, arc_timer_freq, 0, ARC_TIMER_MAX); + enable_percpu_irq(arc_timer_irq, 0); + return 0; } -static struct notifier_block arc_timer_cpu_nb = { - .notifier_call = arc_timer_cpu_notify, -}; +static int arc_timer_dying_cpu(unsigned int cpu) +{ + disable_percpu_irq(arc_timer_irq); + return 0; +} /* * clockevent setup for boot CPU @@ -329,12 +322,6 @@ static int __init arc_clockevent_setup(struct device_node *node) struct clock_event_device *evt = this_cpu_ptr(&arc_clockevent_device); int ret; - ret = register_cpu_notifier(&arc_timer_cpu_nb); - if (ret) { - pr_err("Failed to register cpu notifier"); - return ret; - } - arc_timer_irq = irq_of_parse_and_map(node, 0); if (arc_timer_irq <= 0) { pr_err("clockevent: missing irq"); @@ -347,11 +334,6 @@ static int __init arc_clockevent_setup(struct device_node *node) return ret; } - evt->irq = arc_timer_irq; - evt->cpumask = cpumask_of(smp_processor_id()); - clockevents_config_and_register(evt, arc_timer_freq, - 0, ARC_TIMER_MAX); - /* Needs apriori irq_set_percpu_devid() done in intc map function */ ret = request_percpu_irq(arc_timer_irq, timer_irq_handler, "Timer0 (per-cpu-tick)", evt); @@ -360,8 +342,14 @@ static int __init arc_clockevent_setup(struct device_node *node) return ret; } - enable_percpu_irq(arc_timer_irq, 0); - + ret = cpuhp_setup_state(CPUHP_AP_ARC_TIMER_STARTING, + "AP_ARC_TIMER_STARTING", + arc_timer_starting_cpu, + arc_timer_dying_cpu); + if (ret) { + pr_err("Failed to setup hotplug state"); + return ret; + } return 0; } diff --git a/arch/arc/mm/dma.c b/arch/arc/mm/dma.c index 73d7e4c75b7d..ab74b5d9186c 100644 --- a/arch/arc/mm/dma.c +++ b/arch/arc/mm/dma.c @@ -92,7 +92,8 @@ static void *arc_dma_alloc(struct device *dev, size_t size, static void arc_dma_free(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs) { - struct page *page = virt_to_page(dma_handle); + phys_addr_t paddr = plat_dma_to_phys(dev, dma_handle); + struct page *page = virt_to_page(paddr); int is_non_coh = 1; is_non_coh = dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs) || diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c index af63f4a13e60..e94e5aa33985 100644 --- a/arch/arc/mm/fault.c +++ b/arch/arc/mm/fault.c @@ -137,7 +137,7 @@ good_area: * make sure we exit gracefully rather than endlessly redo * the fault. */ - fault = handle_mm_fault(mm, vma, address, flags); + fault = handle_mm_fault(vma, address, flags); /* If Pagefault was interrupted by SIGKILL, exit page fault "early" */ if (unlikely(fatal_signal_pending(current))) { diff --git a/arch/arc/mm/ioremap.c b/arch/arc/mm/ioremap.c index 49b8abd1115c..f52b7db67fd3 100644 --- a/arch/arc/mm/ioremap.c +++ b/arch/arc/mm/ioremap.c @@ -49,7 +49,7 @@ EXPORT_SYMBOL(ioremap); /* * ioremap with access flags * Cache semantics wise it is same as ioremap - "forced" uncached. - * However unline vanilla ioremap which bypasses ARC MMU for addresses in + * However unlike vanilla ioremap which bypasses ARC MMU for addresses in * ARC hardware uncached region, this one still goes thru the MMU as caller * might need finer access control (R/W/X) */ |
