diff options
Diffstat (limited to 'drivers/perf')
| -rw-r--r-- | drivers/perf/riscv_pmu_sbi.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c index 96c7f670c8f0..16acd4dcdb96 100644 --- a/drivers/perf/riscv_pmu_sbi.c +++ b/drivers/perf/riscv_pmu_sbi.c @@ -22,7 +22,7 @@ #include <asm/errata_list.h> #include <asm/sbi.h> -#include <asm/hwcap.h> +#include <asm/cpufeature.h> #define SYSCTL_NO_USER_ACCESS 0 #define SYSCTL_USER_ACCESS 1 @@ -543,8 +543,7 @@ static void pmu_sbi_ctr_start(struct perf_event *event, u64 ival) if ((hwc->flags & PERF_EVENT_FLAG_USER_ACCESS) && (hwc->flags & PERF_EVENT_FLAG_USER_READ_CNT)) - on_each_cpu_mask(mm_cpumask(event->owner->mm), - pmu_sbi_set_scounteren, (void *)event, 1); + pmu_sbi_set_scounteren((void *)event); } static void pmu_sbi_ctr_stop(struct perf_event *event, unsigned long flag) @@ -554,8 +553,7 @@ static void pmu_sbi_ctr_stop(struct perf_event *event, unsigned long flag) if ((hwc->flags & PERF_EVENT_FLAG_USER_ACCESS) && (hwc->flags & PERF_EVENT_FLAG_USER_READ_CNT)) - on_each_cpu_mask(mm_cpumask(event->owner->mm), - pmu_sbi_reset_scounteren, (void *)event, 1); + pmu_sbi_reset_scounteren((void *)event); ret = sbi_ecall(SBI_EXT_PMU, SBI_EXT_PMU_COUNTER_STOP, hwc->idx, 1, flag, 0, 0, 0); if (ret.error && (ret.error != SBI_ERR_ALREADY_STOPPED) && @@ -689,6 +687,11 @@ static irqreturn_t pmu_sbi_ovf_handler(int irq, void *dev) /* Firmware counter don't support overflow yet */ fidx = find_first_bit(cpu_hw_evt->used_hw_ctrs, RISCV_MAX_COUNTERS); + if (fidx == RISCV_MAX_COUNTERS) { + csr_clear(CSR_SIP, BIT(riscv_pmu_irq_num)); + return IRQ_NONE; + } + event = cpu_hw_evt->events[fidx]; if (!event) { csr_clear(CSR_SIP, BIT(riscv_pmu_irq_num)); |