drm/radeon/kms: add support for semaphores v3
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>
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 1c7af56..233cbc0 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1448,7 +1448,7 @@
tmp |= BUF_SWAP_32BIT;
#endif
WREG32(CP_RB_CNTL, tmp);
- WREG32(CP_SEM_WAIT_TIMER, 0x4);
+ WREG32(CP_SEM_WAIT_TIMER, 0x0);
/* Set the write pointer delay */
WREG32(CP_RB_WPTR_DELAY, 0);
@@ -3290,6 +3290,7 @@
evergreen_pcie_gart_fini(rdev);
r600_vram_scratch_fini(rdev);
radeon_gem_fini(rdev);
+ radeon_semaphore_driver_fini(rdev);
radeon_fence_driver_fini(rdev);
radeon_agp_fini(rdev);
radeon_bo_fini(rdev);