drm/radeon: fix irq ring buffer overflow handling

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We must mask out the overflow bit as well, otherwise
the wptr will never match the rptr again and the interrupt
handler will loop forever.

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>

...

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Christian König 2014-07-23 09:47:58 +02:00 • committed by Alex Deucher

parent 5b75327563

commit e8c214d22e

4 changed files with 4 additions and 0 deletions

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1

drivers/gpu/drm/radeon/cik.c

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drivers/gpu/drm/radeon/evergreen.c

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drivers/gpu/drm/radeon/r600.c

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drivers/gpu/drm/radeon/si.c

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