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authorAlex Deucher <alexander.deucher@amd.com>2014-01-09 16:23:37 -0500
committerAlex Deucher <alexander.deucher@amd.com>2014-01-16 10:03:57 -0500
commit1324c7af8fb1867779db8231af6f4c08e7abad72 (patch)
treec8fac8e09836e9ea877246c75457e62c4170b7f0
parent468d478885120c5709dfafc090460c1494569b33 (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>
-rw-r--r--drivers/gpu/drm/radeon/cik_sdma.c35
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 f0f9e1089409..2a9be9029ae7 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));