drm/radeon: fix CP semaphores on CIK
authorChristian König <christian.koenig@amd.com>
Tue, 18 Feb 2014 10:37:20 +0000 (11:37 +0100)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 18 Feb 2014 18:41:05 +0000 (13:41 -0500)
commit8f53492f86f9ca66bc762be98f0a9fce9bcb319a
tree9d8e2b801dd56b94ff9c2d8fdc4017d5b82be920
parentebc54ffe1c57067d4700f970ef88f26e18b48690
drm/radeon: fix CP semaphores on CIK

The CP semaphore queue on CIK has a bug that triggers if uncompleted
waits use the same address while a signal is still pending. Work around
this by using different addresses for each sync.

Signed-off-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/radeon/radeon.h
drivers/gpu/drm/radeon/radeon_ring.c
drivers/gpu/drm/radeon/radeon_semaphore.c