From ad648d9debf4c2a751b6d240cfed9da8391913af Mon Sep 17 00:00:00 2001 From: Rodrigo Vivi Date: Tue, 1 Oct 2013 15:12:37 -0300 Subject: tests: pm_psr Check on debugfs if PSR is supported by panel and matching all conditions in hardware. In this case PSR must be enabled and performance counting increasing v2: check if performance counter is really increasing. v3: respect new naming convention Signed-off-by: Rodrigo Vivi --- tests/Makefile.am | 1 + tests/pm_psr.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 103 insertions(+) create mode 100644 tests/pm_psr.c diff --git a/tests/Makefile.am b/tests/Makefile.am index a9bd8b2a3..0426ec06f 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -120,6 +120,7 @@ TESTS_progs = \ gen3_render_tiledx_blits \ gen3_render_tiledy_blits \ prime_udl \ + pm_psr \ pm_rc6_residency \ pm_rps \ $(NULL) diff --git a/tests/pm_psr.c b/tests/pm_psr.c new file mode 100644 index 000000000..6139295d6 --- /dev/null +++ b/tests/pm_psr.c @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2013 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Rodrigo Vivi + */ + +#define _GNU_SOURCE +#include +#include +#include +#include +#include "drmtest.h" + +#define SLEEP_DURATION 5000 // in milliseconds + +static int get_perf(const char *path) +{ + int ret, perf; + bool sink, source, enabled; + FILE *file; + char str[4]; + + file = fopen(path, "r"); + if (file == NULL) { + fprintf(stderr, "Couldn't open %s (%d)\n", path, errno); + abort(); + } + + ret = fscanf(file, "Sink_Support: %s\n", str); + if (ret == 0) + igt_skip("i915_edp_psr_status format not supported by this test case\n"); + sink = strcmp(str, "yes") == 0; + ret = fscanf(file, "Source_OK: %s\n", str); + igt_assert(ret != 0); + source = strcmp(str, "yes") == 0; + ret = fscanf(file, "Enabled: %s\n", str); + igt_assert(ret != 0); + enabled = strcmp(str, "yes") == 0; + ret = fscanf(file, "Performance_Counter: %i", &perf); + + if (!sink) + igt_skip("This panel does not support PSR.\n"); + + if (!source) + igt_skip("This Hardware does not support or isn't ready for PSR\n"); + + if (!enabled) { + fprintf(stderr, "PSR should be enabled\n"); + igt_fail(1); + } + + if (perf == 0) { + fprintf(stderr, "PSR state never achieved\n"); + igt_fail(1); + } + + fclose(file); + return perf; +} + +int main(int argc, char *argv[]) +{ + int ret, perf1, perf2; + int device = drm_get_card(); + char *path; + + igt_skip_on_simulation(); + + ret = asprintf(&path, "/sys/kernel/debug/dri/%d/i915_edp_psr_status", device); + igt_assert(ret != -1); + + perf1 = get_perf(path); + sleep(SLEEP_DURATION / 1000); + perf2 = get_perf(path); + + if (perf1 == perf2) { + fprintf(stderr, "Unable to enter PSR state again\n"); + igt_fail(1); + } + + igt_success(); +} -- cgit v1.2.3