From 20d89b417e0bceb79cd80456838b1e91662d445e Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Mon, 18 Sep 2017 09:06:19 +0100 Subject: tests/perf_pmu: Tests for i915 PMU API A bunch of tests for the new i915 PMU feature. Parts of the code were initialy sketched by Dmitry Rogozhkin. v2: (Most suggestions by Chris Wilson) * Add new class/instance based engine list. * Add gem_has_engine/gem_require_engine to work with class/instance. * Use the above two throughout the test. * Shorten tests to 100ms busy batches, seems enough. * Add queued counter sanity checks. * Use igt_nsec_elapsed. * Skip on perf -ENODEV in some tests instead of embedding knowledge locally. * Fix multi ordering for busy accounting. * Use new guranteed_usleep when sleep time is asserted on. * Check for no queued when idle/busy. * Add queued counter init test. * Add queued tests. * Consolidate and increase multiple busy engines tests to most-busy and all-busy tests. * Guarantte interrupts by using fences. * Test RC6 via forcewake. v3: * Tweak assert in interrupts subtest. * Sprinkle of comments. * Fix multi-client test which got broken in v2. v4: * Measured instead of guaranteed sleep. * Missing sync in no_sema. * Log busyness before asserts for debug. * access(2) instead of open(2) to determine if cpu0 is hotpluggable. * Test frequency reporting via min/max setting instead assuming. ^^ All above suggested by Chris Wilson. ^^ * Drop queued subtests to match i915. * Use long batches with fences to ensure interrupts. * Test render node as well. v5: * Add to meson build. (Petri Latvala) * Use 1eN constants. (Chris Wilson) * Add tests for semaphore and event waiting. v6: * Fix interrupts subtest by polling the fence from the "outside". (Chris Wilson) v7: * Assert number of initialized engines matches the expectation. (Chris Wilson) * Warn instead of skipping if we couldn't restore the initial frequency. (Chris Wilson) * Move all asserts to after the test cleanup (just a tidy). * More 1eN notation for timeouts. * Bump the tolerance to 5% since I saw a few noisy runs with sampling counters. * Always start the PMU before submitting batches to lower reliance on i915 doing the delayed engine busy stats disable. v8: * Update for upstream engine class enum. v9: * Add meson build support. Signed-off-by: Tvrtko Ursulin Cc: Chris Wilson Cc: Dmitry Rogozhkin Reviewed-by: Chris Wilson --- lib/igt_gt.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) (limited to 'lib/igt_gt.c') diff --git a/lib/igt_gt.c b/lib/igt_gt.c index 64a2dfd6..4a8f541f 100644 --- a/lib/igt_gt.c +++ b/lib/igt_gt.c @@ -608,3 +608,53 @@ bool gem_can_store_dword(int fd, unsigned int engine) return true; } + +const struct intel_execution_engine2 intel_execution_engines2[] = { + { "rcs0", I915_ENGINE_CLASS_RENDER, 0 }, + { "bcs0", I915_ENGINE_CLASS_COPY, 0 }, + { "vcs0", I915_ENGINE_CLASS_VIDEO, 0 }, + { "vcs1", I915_ENGINE_CLASS_VIDEO, 1 }, + { "vecs0", I915_ENGINE_CLASS_VIDEO_ENHANCE, 0 }, +}; + +unsigned int +gem_class_instance_to_eb_flags(int gem_fd, + enum drm_i915_gem_engine_class class, + unsigned int instance) +{ + if (class != I915_ENGINE_CLASS_VIDEO) + igt_assert(instance == 0); + else + igt_assert(instance >= 0 && instance <= 1); + + switch (class) { + case I915_ENGINE_CLASS_RENDER: + return I915_EXEC_RENDER; + case I915_ENGINE_CLASS_COPY: + return I915_EXEC_BLT; + case I915_ENGINE_CLASS_VIDEO: + if (instance == 0) { + if (gem_has_bsd2(gem_fd)) + return I915_EXEC_BSD | I915_EXEC_BSD_RING1; + else + return I915_EXEC_BSD; + + } else { + return I915_EXEC_BSD | I915_EXEC_BSD_RING2; + } + case I915_ENGINE_CLASS_VIDEO_ENHANCE: + return I915_EXEC_VEBOX; + case I915_ENGINE_CLASS_INVALID: + default: + igt_assert(0); + }; +} + +bool gem_has_engine(int gem_fd, + enum drm_i915_gem_engine_class class, + unsigned int instance) +{ + return gem_has_ring(gem_fd, + gem_class_instance_to_eb_flags(gem_fd, class, + instance)); +} -- cgit v1.2.3