diff options
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/crash_dump.c | 3 | ||||
| -rw-r--r-- | arch/arm/kernel/machine_kexec.c | 7 | ||||
| -rw-r--r-- | arch/arm/kernel/perf_event.c | 17 | ||||
| -rw-r--r-- | arch/arm/kernel/setup.c | 24 |
4 files changed, 23 insertions, 28 deletions
diff --git a/arch/arm/kernel/crash_dump.c b/arch/arm/kernel/crash_dump.c index cd3b853a8a6..90c50d4b43f 100644 --- a/arch/arm/kernel/crash_dump.c +++ b/arch/arm/kernel/crash_dump.c @@ -18,9 +18,6 @@ #include <linux/uaccess.h> #include <linux/io.h> -/* stores the physical address of elf header of crash image */ -unsigned long long elfcorehdr_addr = ELFCORE_ADDR_MAX; - /** * copy_oldmem_page() - copy one page from old kernel memory * @pfn: page frame number to be copied diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 30ead135ff5..e59bbd496c3 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -75,6 +75,11 @@ void machine_crash_shutdown(struct pt_regs *regs) printk(KERN_INFO "Loading crashdump kernel...\n"); } +/* + * Function pointer to optional machine-specific reinitialization + */ +void (*kexec_reinit)(void); + void machine_kexec(struct kimage *image) { unsigned long page_list; @@ -104,6 +109,8 @@ void machine_kexec(struct kimage *image) (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE); printk(KERN_INFO "Bye!\n"); + if (kexec_reinit) + kexec_reinit(); local_irq_disable(); local_fiq_disable(); setup_mm_for_reboot(0); /* mode is not used, so just pass 0*/ diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index d150ad1ccb5..22e194eb853 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -377,9 +377,18 @@ validate_group(struct perf_event *event) return 0; } +static irqreturn_t armpmu_platform_irq(int irq, void *dev) +{ + struct arm_pmu_platdata *plat = dev_get_platdata(&pmu_device->dev); + + return plat->handle_irq(irq, dev, armpmu->handle_irq); +} + static int armpmu_reserve_hardware(void) { + struct arm_pmu_platdata *plat; + irq_handler_t handle_irq; int i, err = -ENODEV, irq; pmu_device = reserve_pmu(ARM_PMU_DEVICE_CPU); @@ -390,6 +399,12 @@ armpmu_reserve_hardware(void) init_pmu(ARM_PMU_DEVICE_CPU); + plat = dev_get_platdata(&pmu_device->dev); + if (plat && plat->handle_irq) + handle_irq = armpmu_platform_irq; + else + handle_irq = armpmu->handle_irq; + if (pmu_device->num_resources < 1) { pr_err("no irqs for PMUs defined\n"); return -ENODEV; @@ -400,7 +415,7 @@ armpmu_reserve_hardware(void) if (irq < 0) continue; - err = request_irq(irq, armpmu->handle_irq, + err = request_irq(irq, handle_irq, IRQF_DISABLED | IRQF_NOBALANCING, "armpmu", NULL); if (err) { diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index d149539ccd6..006c1e884ea 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -789,30 +789,6 @@ static void __init reserve_crashkernel(void) static inline void reserve_crashkernel(void) {} #endif /* CONFIG_KEXEC */ -/* - * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by - * is_kdump_kernel() to determine if we are booting after a panic. Hence - * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE. - */ - -#ifdef CONFIG_CRASH_DUMP -/* - * elfcorehdr= specifies the location of elf core header stored by the crashed - * kernel. This option will be passed by kexec loader to the capture kernel. - */ -static int __init setup_elfcorehdr(char *arg) -{ - char *end; - - if (!arg) - return -EINVAL; - - elfcorehdr_addr = memparse(arg, &end); - return end > arg ? 0 : -EINVAL; -} -early_param("elfcorehdr", setup_elfcorehdr); -#endif /* CONFIG_CRASH_DUMP */ - static void __init squash_mem_tags(struct tag *tag) { for (; tag->hdr.size; tag = tag_next(tag)) |