| Message ID | 20220713135022.3710682-9-bob.beckett@collabora.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915: ttm for stolen | expand |
diff --git a/drivers/gpu/drm/i915/gt/selftest_reset.c b/drivers/gpu/drm/i915/gt/selftest_reset.c index 37c38bdd5f47..55f3b34e5f6e 100644 --- a/drivers/gpu/drm/i915/gt/selftest_reset.c +++ b/drivers/gpu/drm/i915/gt/selftest_reset.c @@ -194,6 +194,8 @@ static int igt_reset_engines_stolen(void *arg) return 0; for_each_engine(engine, gt, id) { + if (intel_engine_uses_guc(engine)) + continue; err = __igt_reset_stolen(gt, engine->mask, engine->name); if (err) return err;
igt_reset_engines_stolen tries to reset engines without checking if it is possible. Engines using GuC submission are not able to be reset from the host. In this scenario, the reset exits early, then on the next iteration of the each engine loop, the async teardown of the spinner request context's ring occurs while the next engine is under test. This is seen as a stolen memory corruption as the ring buffer was busy initially, but free during the confirmation check and had been poisoned during cleanup. Fix this by not testing GuC submission using engines. Signed-off-by: Robert Beckett <bob.beckett@collabora.com> --- drivers/gpu/drm/i915/gt/selftest_reset.c | 2 ++ 1 file changed, 2 insertions(+)