diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2014-01-09 16:23:37 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-22 13:34:48 -0800 |
| commit | d3a61f2188bc4de450cf3dfd540b7de9acf88024 (patch) | |
| tree | 55025935ea0485afb8e5c78d61664959e50f137e | |
| parent | 402b464ec96dc73b0910b2176e6532575a47bc98 (diff) | |
drm/radeon: consolidate sdma hdp flushing code for CIK
commit ca113f6baeb314a66463c35565b4f7955c484000 upstream.
It's used in several places so move to a common shared
function.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Tom Stellard <thomas.stellard@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -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 d08b83c6267b..8edd2ec521de 100644 --- a/drivers/gpu/drm/radeon/cik_sdma.c +++ b/drivers/gpu/drm/radeon/cik_sdma.c @@ -88,6 +88,27 @@ 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 @@ -111,12 +132,7 @@ 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); } /** @@ -747,12 +763,7 @@ 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)); |