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(parent: 80705fc) | patch
drm/radeon: fix irq ring buffer overflow handling
authorChristian König <christian.koenig@amd.com>
Wed, 23 Jul 2014 07:47:58 +0000 (09:47 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 31 Jul 2014 19:52:57 +0000 (12:52 -0700)
commit96b9da39c0946eb04481f4f2ca47651015a4de1b
treea9e4fd16da7e85cc9f782dbf70676750a228d76ftree | snapshot
parent80705fca953d4f2983d5197401de4ce7af7699d3commit | diff
drm/radeon: fix irq ring buffer overflow handling

commit e8c214d22e76dd0ead38f97f8d2dc09aac70d651 upstream.

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>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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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