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drm/i915/selftests: Show the RC6 residency on parking failure

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Include the current RC6 residency counter in the error message, so that
if we fail to park and manually enter RC6 we can see if the counter has
a particularly suspect value (such as 0).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200123145755.1420622-1-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson
2020-01-23 14:57:55 +00:00
parent 0f8f8a6430
commit 423177140e
1 changed files with 3 additions and 2 deletions
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5
drivers/gpu/drm/i915/gt/selftest_rc6.c
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@@ -56,9 +56,10 @@ int live_rc6_manual(void *arg)
res[1] = intel_rc6_residency_ns(rc6, GEN6_GT_GFX_RC6);
if (res[1] == res[0]) {
pr_err("Did not enter RC6! RC6_STATE=%08x, RC6_CONTROL=%08x\n",
pr_err("Did not enter RC6! RC6_STATE=%08x, RC6_CONTROL=%08x, residency=%lld\n",
intel_uncore_read_fw(gt->uncore, GEN6_RC_STATE),
intel_uncore_read_fw(gt->uncore, GEN6_RC_CONTROL));
intel_uncore_read_fw(gt->uncore, GEN6_RC_CONTROL),
res[0]);
err = -EINVAL;
}