diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2018-02-07 13:34:05 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2018-02-07 16:26:35 +0000 |
| commit | c0c5a10a4a7bf81614179002beb8cc945180c920 (patch) | |
| tree | ff70d2eb34ea9ec0252aa3edf4b62a4368d7f490 /tests/perf_pmu.c | |
| parent | 8a9ac203853b3150a608122226910a1218fa654c (diff) | |
tests/perf_pmu: Test RC6 during runtime suspend
Test to check that the RC6 counter works as expected during and after
runtime suspend.
v2:
* Use correct sysfs root by using IGT helpers.
* Turn off display to allow runtime suspend. (Imre)
* Two subtest flavours.
v3:
* drmModeFreeResources. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'tests/perf_pmu.c')
| -rw-r--r-- | tests/perf_pmu.c | 43 |
1 files changed, 39 insertions, 4 deletions
diff --git a/tests/perf_pmu.c b/tests/perf_pmu.c index b72642e9..a27a8a81 100644 --- a/tests/perf_pmu.c +++ b/tests/perf_pmu.c @@ -40,6 +40,7 @@ #include "igt_core.h" #include "igt_perf.h" #include "igt_sysfs.h" +#include "igt_pm.h" #include "sw_sync.h" IGT_TEST_DESCRIPTION("Test the i915 pmu perf interface"); @@ -153,6 +154,8 @@ static unsigned int e2ring(int gem_fd, const struct intel_execution_engine2 *e) #define TEST_BUSY (1) #define FLAG_SYNC (2) #define TEST_TRAILING_IDLE (4) +#define TEST_RUNTIME_PM (8) +#define FLAG_LONG (16) static void end_spin(int fd, igt_spin_t *spin, unsigned int flags) { @@ -1246,19 +1249,45 @@ static bool wait_for_rc6(int fd) } static void -test_rc6(int gem_fd) +test_rc6(int gem_fd, unsigned int flags) { int64_t duration_ns = 2e9; uint64_t idle, busy, prev; unsigned int slept; int fd, fw; + gem_quiescent_gpu(gem_fd); + fd = open_pmu(I915_PMU_RC6_RESIDENCY); - gem_quiescent_gpu(gem_fd); + if (flags & TEST_RUNTIME_PM) { + drmModeRes *res; + + res = drmModeGetResources(gem_fd); + igt_assert(res); + + /* force all connectors off */ + kmstest_set_vt_graphics_mode(); + kmstest_unset_all_crtcs(gem_fd, res); + drmModeFreeResources(res); + + igt_require(igt_setup_runtime_pm()); + igt_require(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED)); + + /* + * Sleep for a bit to see if once woken up estimated RC6 hasn't + * drifted to far in advance of real RC6. + */ + if (flags & FLAG_LONG) { + pmu_read_single(fd); + sleep(5); + pmu_read_single(fd); + } + } + igt_require(wait_for_rc6(fd)); - /* Go idle and check full RC6. */ + /* While idle check full RC6. */ prev = pmu_read_single(fd); slept = measured_usleep(duration_ns / 1000); idle = pmu_read_single(fd); @@ -1525,7 +1554,13 @@ igt_main * Test RC6 residency reporting. */ igt_subtest("rc6") - test_rc6(fd); + test_rc6(fd, 0); + + igt_subtest("rc6-runtime-pm") + test_rc6(fd, TEST_RUNTIME_PM); + + igt_subtest("rc6-runtime-pm-long") + test_rc6(fd, TEST_RUNTIME_PM | FLAG_LONG); /** * Check render nodes are counted. |