From edb2db2cf2b6665d7ba3fa9117263302f6307a4f Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Wed, 5 Dec 2018 10:45:56 +0000 Subject: igt/pm_rpm: Show the contents of i915_runtime_pm_status on setup To try and help debug situations where the driver has leaked a runtime reference before executing the pm_rpm tests, show the contents of i915_runtime_pm_status at startup, which will include all currently held wakerefs. Signed-off-by: Chris Wilson Reviewed-by: Antonio Argenziano --- tests/pm_rpm.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c index f0d6db52..7dcb5586 100644 --- a/tests/pm_rpm.c +++ b/tests/pm_rpm.c @@ -725,6 +725,18 @@ static bool dmc_loaded(void) return strstr(buf, "fw loaded: yes"); } +static void dump_file(int dir, const char *filename) +{ + char *contents; + + contents = igt_sysfs_get(dir, filename); + if (!contents) + return; + + igt_info("%s:\n%s\n", filename, contents); + free(contents); +} + static bool setup_environment(void) { if (has_runtime_pm) @@ -744,6 +756,8 @@ static bool setup_environment(void) has_runtime_pm = igt_setup_runtime_pm(); setup_pc8(); + dump_file(debugfs, "i915_runtime_pm_status"); + igt_info("Runtime PM support: %d\n", has_runtime_pm); igt_info("PC8 residency support: %d\n", has_pc8); igt_require(has_runtime_pm); -- cgit v1.2.3