diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/perf/qcom_l2_pmu.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c index b242cce10468..4fdc8486a8e4 100644 --- a/drivers/perf/qcom_l2_pmu.c +++ b/drivers/perf/qcom_l2_pmu.c @@ -92,6 +92,21 @@ #define reg_idx(reg, i) (((i) * IA_L2_REG_OFFSET) + reg##_BASE) +/* + * Events + */ +#define L2_EVENT_CYCLES 0xfe +#define L2_EVENT_DCACHE_OPS 0x400 +#define L2_EVENT_ICACHE_OPS 0x401 +#define L2_EVENT_TLBI 0x402 +#define L2_EVENT_BARRIERS 0x403 +#define L2_EVENT_TOTAL_READS 0x405 +#define L2_EVENT_TOTAL_WRITES 0x406 +#define L2_EVENT_TOTAL_REQUESTS 0x407 +#define L2_EVENT_LDREX 0x420 +#define L2_EVENT_STREX 0x421 +#define L2_EVENT_CLREX 0x422 + static DEFINE_RAW_SPINLOCK(l2_access_lock); /** @@ -700,9 +715,12 @@ static struct attribute_group l2_cache_pmu_cpumask_group = { /* CCG format for perf RAW codes. */ PMU_FORMAT_ATTR(l2_code, "config:4-11"); PMU_FORMAT_ATTR(l2_group, "config:0-3"); +PMU_FORMAT_ATTR(event, "config:0-11"); + static struct attribute *l2_cache_pmu_formats[] = { &format_attr_l2_code.attr, &format_attr_l2_group.attr, + &format_attr_event.attr, NULL, }; @@ -711,9 +729,45 @@ static struct attribute_group l2_cache_pmu_format_group = { .attrs = l2_cache_pmu_formats, }; +static ssize_t l2cache_pmu_event_show(struct device *dev, + struct device_attribute *attr, char *page) +{ + struct perf_pmu_events_attr *pmu_attr; + + pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr); + return sprintf(page, "event=0x%02llx\n", pmu_attr->id); +} + +#define L2CACHE_EVENT_ATTR(_name, _id) \ + (&((struct perf_pmu_events_attr[]) { \ + { .attr = __ATTR(_name, 0444, l2cache_pmu_event_show, NULL), \ + .id = _id, } \ + })[0].attr.attr) + +static struct attribute *l2_cache_pmu_events[] = { + L2CACHE_EVENT_ATTR(cycles, L2_EVENT_CYCLES), + L2CACHE_EVENT_ATTR(dcache-ops, L2_EVENT_DCACHE_OPS), + L2CACHE_EVENT_ATTR(icache-ops, L2_EVENT_ICACHE_OPS), + L2CACHE_EVENT_ATTR(tlbi, L2_EVENT_TLBI), + L2CACHE_EVENT_ATTR(barriers, L2_EVENT_BARRIERS), + L2CACHE_EVENT_ATTR(total-reads, L2_EVENT_TOTAL_READS), + L2CACHE_EVENT_ATTR(total-writes, L2_EVENT_TOTAL_WRITES), + L2CACHE_EVENT_ATTR(total-requests, L2_EVENT_TOTAL_REQUESTS), + L2CACHE_EVENT_ATTR(ldrex, L2_EVENT_LDREX), + L2CACHE_EVENT_ATTR(strex, L2_EVENT_STREX), + L2CACHE_EVENT_ATTR(clrex, L2_EVENT_CLREX), + NULL +}; + +static struct attribute_group l2_cache_pmu_events_group = { + .name = "events", + .attrs = l2_cache_pmu_events, +}; + static const struct attribute_group *l2_cache_pmu_attr_grps[] = { &l2_cache_pmu_format_group, &l2_cache_pmu_cpumask_group, + &l2_cache_pmu_events_group, NULL, }; |