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
Signed-off-by: Rodrigo Vivi <[email protected]> --- tests/Makefile.am | 1 + tests/debugfs_psr_status.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 80 insertions(+) create mode 100644 tests/debugfs_psr_status.c diff --git a/tests/Makefile.am b/tests/Makefile.am index 99d98d6..82bc936 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -116,6 +116,7 @@ TESTS_progs = \ prime_udl \ sysfs_rc6_residency \ sysfs_rps \ + debugfs_psr_status \ $(NULL) # IMPORTANT: The ZZ_ tests need to be run last! diff --git a/tests/debugfs_psr_status.c b/tests/debugfs_psr_status.c new file mode 100644 index 0000000..44b621f --- /dev/null +++ b/tests/debugfs_psr_status.c @@ -0,0 +1,79 @@ +/* + * 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 <[email protected]> + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include "drmtest.h" + +int main(int argc, char *argv[]) +{ + FILE *file; + int ret, perf; + int device = drm_get_card(); + char *str; + bool sink, source, enabled; + + igt_skip_on_simulation(); + + ret = asprintf(&str, "/sys/kernel/debug/dri/%d/i915_edp_psr_status", device); + igt_assert(ret != -1); + + file = fopen(str, "r"); + igt_require(file); + + 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); + } + + igt_success(); +} -- 1.7.11.7 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
