diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-01-09 16:23:37 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-01-20 12:05:13 -0500 |
| commit | ca113f6baeb314a66463c35565b4f7955c484000 (patch) | |
| tree | 90567fdfdf24481fd499aaba6ba630a9f5caac0c /drivers/gpu | |
| parent | 780f5dddaeb8e5950d8ecf2e7565a35bf5d5be36 (diff) | |
drm/radeon: consolidate sdma hdp flushing code for CIK
It's used in several places so move to a common shared
function.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/cik_sdma.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c index af520d4d362b..d7e51c06d597 100644 --- a/drivers/gpu/drm/radeon/cik_sdma.c +++ b/drivers/gpu/drm/radeon/cik_sdma.c @@ -157,6 +157,27 @@ void cik_sdma_ring_ib_execute(struct radeon_device *rdev, } /** + * cik_sdma_hdp_flush_ring_emit - emit an hdp flush on the DMA ring + * + * @rdev: radeon_device pointer + * @ridx: radeon ring index + * + * Emit an hdp flush packet on the requested DMA ring. + */ +static void cik_sdma_hdp_flush_ring_emit(struct radeon_device *rdev, + int ridx) +{ + struct radeon_ring *ring = &rdev->ring[ridx]; + + /* We should be using the new POLL_REG_MEM special op packet here + * but it causes sDMA to hang sometimes + */ + radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); + radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2); + radeon_ring_write(ring, 0); +} + +/** * cik_sdma_fence_ring_emit - emit a fence on the DMA ring * * @rdev: radeon_device pointer @@ -180,12 +201,7 @@ void cik_sdma_fence_ring_emit(struct radeon_device *rdev, /* generate an interrupt */ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0)); /* flush HDP */ - /* We should be using the new POLL_REG_MEM special op packet here - * but it causes sDMA to hang sometimes - */ - radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); - radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2); - radeon_ring_write(ring, 0); + cik_sdma_hdp_flush_ring_emit(rdev, fence->ring); } /** @@ -816,12 +832,7 @@ void cik_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm radeon_ring_write(ring, VMID(0)); /* flush HDP */ - /* We should be using the new POLL_REG_MEM special op packet here - * but it causes sDMA to hang sometimes - */ - radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); - radeon_ring_write(ring, HDP_MEM_COHERENCY_FLUSH_CNTL >> 2); - radeon_ring_write(ring, 0); + cik_sdma_hdp_flush_ring_emit(rdev, ridx); /* flush TLB */ radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000)); |