On 05/12/18 02:48, Chris Wilson wrote:
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.
LGTM.
Reviewed-by: Antonio Argenziano <antonio.argenziano@xxxxxxxxx>
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
tests/pm_rpm.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c
index f0d6db525..7427958dc 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_debug("%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);
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