[Intel-gfx] [PATCH] drm/i915/selftests: Show the pstate limits on any failure to reset min

Chris Wilson chris at chris-wilson.co.uk
Mon Apr 20 20:30:40 UTC 2020


We want to see the pstate limits whenever we fail to set the minimum
frequency as that may help for debugging.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/gt/selftest_rps.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/selftest_rps.c b/drivers/gpu/drm/i915/gt/selftest_rps.c
index d7cd673550ef..e0a791eac752 100644
--- a/drivers/gpu/drm/i915/gt/selftest_rps.c
+++ b/drivers/gpu/drm/i915/gt/selftest_rps.c
@@ -238,6 +238,7 @@ int live_rps_control(void *arg)
 			pr_err("%s: could not set minimum frequency [%x], only %x!\n",
 			       engine->name, rps->min_freq, read_cagf(rps));
 			igt_spinner_end(&spin);
+			show_pstate_limits(rps);
 			err = -EINVAL;
 			break;
 		}
@@ -278,6 +279,7 @@ int live_rps_control(void *arg)
 		if (limit == rps->min_freq) {
 			pr_err("%s: GPU throttled to minimum!\n",
 			       engine->name);
+			show_pstate_limits(rps);
 			err = -ENODEV;
 			break;
 		}
-- 
2.20.1



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