diff options
| -rw-r--r-- | arch/powerpc/oprofile/common.c | 13 | ||||
| -rw-r--r-- | arch/ppc/kernel/perfmon.c | 10 | ||||
| -rw-r--r-- | include/asm-ppc/perfmon.h | 4 |
3 files changed, 7 insertions, 20 deletions
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c index 486314a0def..88b4118fd0c 100644 --- a/arch/powerpc/oprofile/common.c +++ b/arch/powerpc/oprofile/common.c @@ -46,19 +46,12 @@ static void op_handle_interrupt(struct pt_regs *regs) static int op_powerpc_setup(void) { -#ifdef __powerpc64__ int err; /* Grab the hardware */ err = reserve_pmc_hardware(op_handle_interrupt); if (err) return err; -#else /* __powerpc64__ */ - /* Install our interrupt handler into the existing hook. */ - if (request_perfmon_irq(&op_handle_interrupt)) - return -EBUSY; - mb(); -#endif /* __powerpc64__ */ /* Pre-compute the values to stuff in the hardware registers. */ model->reg_setup(ctr, &sys, model->num_counters); @@ -78,13 +71,7 @@ static int op_powerpc_setup(void) static void op_powerpc_shutdown(void) { -#ifdef __powerpc64__ release_pmc_hardware(); -#else /* __powerpc64__ */ - mb(); - /* Remove our interrupt handler. We may be removing this module. */ - free_perfmon_irq(); -#endif /* __powerpc64__ */ } static void op_powerpc_cpu_start(void *dummy) diff --git a/arch/ppc/kernel/perfmon.c b/arch/ppc/kernel/perfmon.c index fa1dad96b83..91e2786ea09 100644 --- a/arch/ppc/kernel/perfmon.c +++ b/arch/ppc/kernel/perfmon.c @@ -61,7 +61,7 @@ void (*perf_irq)(struct pt_regs *) = dummy_perf; /* Grab the interrupt, if it's free. * Returns 0 on success, -1 if the interrupt is taken already */ -int request_perfmon_irq(void (*handler)(struct pt_regs *)) +int reserve_pmc_hardware(void (*handler)(struct pt_regs *)) { int err = 0; @@ -71,7 +71,7 @@ int request_perfmon_irq(void (*handler)(struct pt_regs *)) perf_irq = handler; else { pr_info("perfmon irq already handled by %p\n", perf_irq); - err = -1; + err = -EBUSY; } spin_unlock(&perfmon_lock); @@ -79,7 +79,7 @@ int request_perfmon_irq(void (*handler)(struct pt_regs *)) return err; } -void free_perfmon_irq(void) +void release_pmc_hardware(void) { spin_lock(&perfmon_lock); @@ -89,5 +89,5 @@ void free_perfmon_irq(void) } EXPORT_SYMBOL(perf_irq); -EXPORT_SYMBOL(request_perfmon_irq); -EXPORT_SYMBOL(free_perfmon_irq); +EXPORT_SYMBOL(reserve_pmc_hardware); +EXPORT_SYMBOL(release_pmc_hardware); diff --git a/include/asm-ppc/perfmon.h b/include/asm-ppc/perfmon.h index e9692a603cf..2ae031594a4 100644 --- a/include/asm-ppc/perfmon.h +++ b/include/asm-ppc/perfmon.h @@ -3,8 +3,8 @@ extern void (*perf_irq)(struct pt_regs *); -int request_perfmon_irq(void (*handler)(struct pt_regs *)); -void free_perfmon_irq(void); +int reserve_pmc_hardware(void (*handler)(struct pt_regs *)); +void release_pmc_hardware(void); #ifdef CONFIG_FSL_BOOKE void init_pmc_stop(int ctr); |