diff options
| -rw-r--r-- | lib/igt_perf.h | 4 | ||||
| -rw-r--r-- | overlay/rc6.c | 45 | ||||
| -rw-r--r-- | tests/perf_pmu.c | 53 |
3 files changed, 8 insertions, 94 deletions
diff --git a/lib/igt_perf.h b/lib/igt_perf.h index 5428feb0..7b66fc58 100644 --- a/lib/igt_perf.h +++ b/lib/igt_perf.h @@ -64,10 +64,8 @@ enum drm_i915_pmu_engine_sample { #define I915_PMU_REQUESTED_FREQUENCY __I915_PMU_OTHER(1) #define I915_PMU_INTERRUPTS __I915_PMU_OTHER(2) #define I915_PMU_RC6_RESIDENCY __I915_PMU_OTHER(3) -#define I915_PMU_RC6p_RESIDENCY __I915_PMU_OTHER(4) -#define I915_PMU_RC6pp_RESIDENCY __I915_PMU_OTHER(5) -#define I915_PMU_LAST I915_PMU_RC6pp_RESIDENCY +#define I915_PMU_LAST I915_PMU_RC6_RESIDENCY static inline int perf_event_open(struct perf_event_attr *attr, diff --git a/overlay/rc6.c b/overlay/rc6.c index 8977f099..b5286f0c 100644 --- a/overlay/rc6.c +++ b/overlay/rc6.c @@ -35,34 +35,12 @@ #include "rc6.h" -#define RC6 (1<<0) -#define RC6p (1<<1) -#define RC6pp (1<<2) - -static int perf_open(unsigned *flags) -{ - int fd; - - fd = perf_i915_open_group(I915_PMU_RC6_RESIDENCY, -1); - if (fd < 0) - return -1; - - *flags |= RC6; - if (perf_i915_open_group(I915_PMU_RC6p_RESIDENCY, fd) >= 0) - *flags |= RC6p; - - if (perf_i915_open_group(I915_PMU_RC6pp_RESIDENCY, fd) >= 0) - *flags |= RC6pp; - - return fd; -} - int rc6_init(struct rc6 *rc6) { memset(rc6, 0, sizeof(*rc6)); - rc6->fd = perf_open(&rc6->flags); - if (rc6->fd == -1) { + rc6->fd = perf_i915_open(I915_PMU_RC6_RESIDENCY); + if (rc6->fd < 0) { struct stat st; if (stat("/sys/class/drm/card0/power", &st) < 0) return rc6->error = errno; @@ -110,7 +88,7 @@ int rc6_update(struct rc6 *rc6) if (rc6->error) return rc6->error; - if (rc6->fd == -1) { + if (rc6->fd < 0) { struct stat st; if (stat("/sys/class/drm/card0/power/rc6_residency_ms", &st) < 0) @@ -121,22 +99,13 @@ int rc6_update(struct rc6 *rc6) s->rc6pp_residency = file_to_u64("/sys/class/drm/card0/power/rc6pp_residency_ms"); s->timestamp = clock_ms_to_u64(); } else { - uint64_t data[5]; - int len; + uint64_t data[2]; - len = read(rc6->fd, data, sizeof(data)); - if (len < 0) + if (read(rc6->fd, data, sizeof(data)) < sizeof(data)) return rc6->error = errno; - s->timestamp = data[1] / (1000*1000); - - len = 2; - if (rc6->flags & RC6) - s->rc6_residency = data[len++] / 1e6; - if (rc6->flags & RC6p) - s->rc6p_residency = data[len++] / 1e6; - if (rc6->flags & RC6pp) - s->rc6pp_residency = data[len++] / 1e6; + s->timestamp = data[1] / 1e6; + s->rc6_residency = data[0] / 1e6; } if (rc6->count == 1) diff --git a/tests/perf_pmu.c b/tests/perf_pmu.c index a19fd2ac..8d58ecea 100644 --- a/tests/perf_pmu.c +++ b/tests/perf_pmu.c @@ -1019,53 +1019,6 @@ test_rc6(int gem_fd) assert_within_epsilon(busy - prev, 0.0, tolerance); } -static void -test_rc6p(int gem_fd) -{ - int64_t duration_ns = 2e9; - unsigned int num_pmu = 1; - uint64_t idle[3], busy[3], prev[3]; - unsigned int slept, i; - int fd, ret, fw; - - fd = open_group(I915_PMU_RC6_RESIDENCY, -1); - ret = perf_i915_open_group(I915_PMU_RC6p_RESIDENCY, fd); - if (ret > 0) { - num_pmu++; - ret = perf_i915_open_group(I915_PMU_RC6pp_RESIDENCY, fd); - if (ret > 0) - num_pmu++; - } - - igt_require(num_pmu == 3); - - gem_quiescent_gpu(gem_fd); - usleep(100e3); /* wait for the rc6 cycle counter to kick in */ - - /* Go idle and check full RC6. */ - pmu_read_multi(fd, num_pmu, prev); - slept = measured_usleep(duration_ns / 1000); - pmu_read_multi(fd, num_pmu, idle); - - for (i = 0; i < num_pmu; i++) - assert_within_epsilon(idle[i] - prev[i], slept, tolerance); - - /* Wake up device and check no RC6. */ - fw = igt_open_forcewake_handle(gem_fd); - igt_assert(fw >= 0); - usleep(1e3); /* wait for the rc6 cycle counter to stop ticking */ - - pmu_read_multi(fd, num_pmu, prev); - usleep(duration_ns / 1000); - pmu_read_multi(fd, num_pmu, busy); - - close(fw); - close(fd); - - for (i = 0; i < num_pmu; i++) - assert_within_epsilon(busy[i] - prev[i], 0.0, tolerance); -} - igt_main { const unsigned int num_other_metrics = @@ -1206,12 +1159,6 @@ igt_main test_rc6(fd); /** - * Test RC6p residency reporting. - */ - igt_subtest("rc6p") - test_rc6p(fd); - - /** * Check render nodes are counted. */ igt_subtest_group { |