xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon/kms: add support for semaphores v3

Browse Source 
They are used to sync between rings, while fences
sync between a ring and the cpu.

v2 Fix radeon_semaphore_driver_fini when no semaphore were
allocated.

v3 Initialize list early on to avoid issue in case or early
error

Signed-off-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Christian König
2011-09-15 19:02:22 +02:00
committed by Dave Airlie
parent 7465280c07
commit 15d3332f31
13 changed files with 248 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/radeon/r600_cp.c
View File

@@ -1815,7 +1815,7 @@ static void r600_cp_init_ring_buffer(struct drm_device *dev,
dev_priv->ring.size_l2qw);
#endif
RADEON_WRITE(R600_CP_SEM_WAIT_TIMER, 0x4);
RADEON_WRITE(R600_CP_SEM_WAIT_TIMER, 0x0);
/* Set the write pointer delay */
RADEON_WRITE(R600_CP_RB_WPTR_DELAY, 0);