diff options
Diffstat (limited to 'arch/powerpc/perf')
-rw-r--r-- | arch/powerpc/perf/core-book3s.c | 22 | ||||
-rw-r--r-- | arch/powerpc/perf/core-fsl-emb.c | 6 | ||||
-rw-r--r-- | arch/powerpc/perf/hv-24x7.c | 23 |
3 files changed, 24 insertions, 27 deletions
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index a6995d4e93d4..7c4f6690533a 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -339,7 +339,7 @@ static void power_pmu_bhrb_reset(void) static void power_pmu_bhrb_enable(struct perf_event *event) { - struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events); if (!ppmu->bhrb_nr) return; @@ -354,7 +354,7 @@ static void power_pmu_bhrb_enable(struct perf_event *event) static void power_pmu_bhrb_disable(struct perf_event *event) { - struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events); if (!ppmu->bhrb_nr) return; @@ -1144,7 +1144,7 @@ static void power_pmu_disable(struct pmu *pmu) if (!ppmu) return; local_irq_save(flags); - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); if (!cpuhw->disabled) { /* @@ -1211,7 +1211,7 @@ static void power_pmu_enable(struct pmu *pmu) return; local_irq_save(flags); - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); if (!cpuhw->disabled) goto out; @@ -1403,7 +1403,7 @@ static int power_pmu_add(struct perf_event *event, int ef_flags) * Add the event to the list (if there is room) * and check whether the total set is still feasible. */ - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); n0 = cpuhw->n_events; if (n0 >= ppmu->n_counter) goto out; @@ -1469,7 +1469,7 @@ static void power_pmu_del(struct perf_event *event, int ef_flags) power_pmu_read(event); - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); for (i = 0; i < cpuhw->n_events; ++i) { if (event == cpuhw->event[i]) { while (++i < cpuhw->n_events) { @@ -1575,7 +1575,7 @@ static void power_pmu_stop(struct perf_event *event, int ef_flags) */ static void power_pmu_start_txn(struct pmu *pmu) { - struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events); perf_pmu_disable(pmu); cpuhw->group_flag |= PERF_EVENT_TXN; @@ -1589,7 +1589,7 @@ static void power_pmu_start_txn(struct pmu *pmu) */ static void power_pmu_cancel_txn(struct pmu *pmu) { - struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events); cpuhw->group_flag &= ~PERF_EVENT_TXN; perf_pmu_enable(pmu); @@ -1607,7 +1607,7 @@ static int power_pmu_commit_txn(struct pmu *pmu) if (!ppmu) return -EAGAIN; - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); n = cpuhw->n_events; if (check_excludes(cpuhw->event, cpuhw->flags, 0, n)) return -EAGAIN; @@ -1964,7 +1964,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val, if (event->attr.sample_type & PERF_SAMPLE_BRANCH_STACK) { struct cpu_hw_events *cpuhw; - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); power_pmu_bhrb_read(cpuhw); data.br_stack = &cpuhw->bhrb_stack; } @@ -2037,7 +2037,7 @@ static bool pmc_overflow(unsigned long val) static void perf_event_interrupt(struct pt_regs *regs) { int i, j; - struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events); struct perf_event *event; unsigned long val[8]; int found, active; diff --git a/arch/powerpc/perf/core-fsl-emb.c b/arch/powerpc/perf/core-fsl-emb.c index d35ae52c69dc..4acaea01fe03 100644 --- a/arch/powerpc/perf/core-fsl-emb.c +++ b/arch/powerpc/perf/core-fsl-emb.c @@ -210,7 +210,7 @@ static void fsl_emb_pmu_disable(struct pmu *pmu) unsigned long flags; local_irq_save(flags); - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); if (!cpuhw->disabled) { cpuhw->disabled = 1; @@ -249,7 +249,7 @@ static void fsl_emb_pmu_enable(struct pmu *pmu) unsigned long flags; local_irq_save(flags); - cpuhw = &__get_cpu_var(cpu_hw_events); + cpuhw = this_cpu_ptr(&cpu_hw_events); if (!cpuhw->disabled) goto out; @@ -653,7 +653,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val, static void perf_event_interrupt(struct pt_regs *regs) { int i; - struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events); + struct cpu_hw_events *cpuhw = this_cpu_ptr(&cpu_hw_events); struct perf_event *event; unsigned long val; int found = 0; diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index dba34088da28..f162d0b8eea3 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -177,7 +177,7 @@ static ssize_t _name##_show(struct device *dev, \ } \ ret = sprintf(buf, _fmt, _expr); \ e_free: \ - kfree(page); \ + kmem_cache_free(hv_page_cache, page); \ return ret; \ } \ static DEVICE_ATTR_RO(_name) @@ -217,11 +217,14 @@ static bool is_physical_domain(int domain) domain == HV_24X7_PERF_DOMAIN_PHYSICAL_CORE; } +DEFINE_PER_CPU(char, hv_24x7_reqb[4096]) __aligned(4096); +DEFINE_PER_CPU(char, hv_24x7_resb[4096]) __aligned(4096); + static unsigned long single_24x7_request(u8 domain, u32 offset, u16 ix, u16 lpar, u64 *res, bool success_expected) { - unsigned long ret = -ENOMEM; + unsigned long ret; /* * request_buffer and result_buffer are not required to be 4k aligned, @@ -243,13 +246,11 @@ static unsigned long single_24x7_request(u8 domain, u32 offset, u16 ix, BUILD_BUG_ON(sizeof(*request_buffer) > 4096); BUILD_BUG_ON(sizeof(*result_buffer) > 4096); - request_buffer = kmem_cache_zalloc(hv_page_cache, GFP_USER); - if (!request_buffer) - goto out; + request_buffer = (void *)get_cpu_var(hv_24x7_reqb); + result_buffer = (void *)get_cpu_var(hv_24x7_resb); - result_buffer = kmem_cache_zalloc(hv_page_cache, GFP_USER); - if (!result_buffer) - goto out_free_request_buffer; + memset(request_buffer, 0, 4096); + memset(result_buffer, 0, 4096); *request_buffer = (struct reqb) { .buf = { @@ -278,15 +279,11 @@ static unsigned long single_24x7_request(u8 domain, u32 offset, u16 ix, domain, offset, ix, lpar, ret, ret, result_buffer->buf.detailed_rc, result_buffer->buf.failing_request_ix); - goto out_free_result_buffer; + goto out; } *res = be64_to_cpu(result_buffer->result); -out_free_result_buffer: - kfree(result_buffer); -out_free_request_buffer: - kfree(request_buffer); out: return ret; } |