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(parent: a1da487) | patch
drm/radeon: Clear RB_OVERFLOW bit earlier
authorMichel Dänzer <michel.daenzer@amd.com>
Fri, 19 Sep 2014 03:07:11 +0000 (12:07 +0900)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 22 Sep 2014 21:24:25 +0000 (17:24 -0400)
commit8b507be2c9f4219670396781305cf3d9089e4d41
treee1eb8ea4bb9d378eb7e17c41a563d6b76931c3e7tree | snapshot
parenta1da4874640945eb48ea753e47e03dee391ad5c5commit | diff
drm/radeon: Clear RB_OVERFLOW bit earlier

Otherwise the bit remains set in rdev->ih.rptr, so the wptr can never
match that and we still have an infinite loop.

This fix allows me to successfully recover from an IH ring buffer
overflow.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/cik.c diff | blob | history
drivers/gpu/drm/radeon/evergreen.c diff | blob | history
drivers/gpu/drm/radeon/r600.c diff | blob | history
drivers/gpu/drm/radeon/si.c diff | blob | history
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