diff options
Diffstat (limited to 'arch/powerpc/kernel/mce.c')
| -rw-r--r-- | arch/powerpc/kernel/mce.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/arch/powerpc/kernel/mce.c b/arch/powerpc/kernel/mce.c index c0c52ec1fca..a7fd4cb78b7 100644 --- a/arch/powerpc/kernel/mce.c +++ b/arch/powerpc/kernel/mce.c @@ -26,6 +26,7 @@ #include <linux/ptrace.h> #include <linux/percpu.h> #include <linux/export.h> +#include <linux/irq_work.h> #include <asm/mce.h> static DEFINE_PER_CPU(int, mce_nest_count); @@ -35,6 +36,11 @@ static DEFINE_PER_CPU(struct machine_check_event[MAX_MC_EVT], mce_event); static DEFINE_PER_CPU(int, mce_queue_count); static DEFINE_PER_CPU(struct machine_check_event[MAX_MC_EVT], mce_event_queue); +static void machine_check_process_queued_event(struct irq_work *work); +struct irq_work mce_event_process_work = { + .func = machine_check_process_queued_event, +}; + static void mce_set_error_info(struct machine_check_event *mce, struct mce_error_info *mce_err) { @@ -64,7 +70,7 @@ static void mce_set_error_info(struct machine_check_event *mce, */ void save_mce_event(struct pt_regs *regs, long handled, struct mce_error_info *mce_err, - uint64_t addr) + uint64_t nip, uint64_t addr) { uint64_t srr1; int index = __get_cpu_var(mce_nest_count)++; @@ -80,7 +86,7 @@ void save_mce_event(struct pt_regs *regs, long handled, /* Populate generic machine check info */ mce->version = MCE_V1; - mce->srr0 = regs->nip; + mce->srr0 = nip; mce->srr1 = regs->msr; mce->gpr3 = regs->gpr[3]; mce->in_use = 1; @@ -185,17 +191,19 @@ void machine_check_queue_event(void) return; } __get_cpu_var(mce_event_queue[index]) = evt; + + /* Queue irq work to process this event later. */ + irq_work_queue(&mce_event_process_work); } /* * process pending MCE event from the mce event queue. This function will be * called during syscall exit. */ -void machine_check_process_queued_event(void) +static void machine_check_process_queued_event(struct irq_work *work) { int index; - preempt_disable(); /* * For now just print it to console. * TODO: log this error event to FSP or nvram. @@ -206,7 +214,6 @@ void machine_check_process_queued_event(void) &__get_cpu_var(mce_event_queue[index])); __get_cpu_var(mce_queue_count)--; } - preempt_enable(); } void machine_check_print_event_info(struct machine_check_event *evt) |