[PATCH 06/15] drm/amdgpu/cik_sdma: add ring callbacks for ib and dma frame size

Alex Deucher alexdeucher at gmail.com
Fri Sep 16 16:05:43 UTC 2016


Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/cik_sdma.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
index e71cd12..e6d7bf9 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik_sdma.c
@@ -847,6 +847,22 @@ static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
 	amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
 }
 
+static unsigned cik_sdma_ring_get_emit_ib_size(struct amdgpu_ring *ring)
+{
+	return
+		7 + 4; /* cik_sdma_ring_emit_ib */
+}
+
+static unsigned cik_sdma_ring_get_dma_frame_size(struct amdgpu_ring *ring)
+{
+	return
+		6 + /* cik_sdma_ring_emit_hdp_flush */
+		3 + /* cik_sdma_ring_emit_hdp_invalidate */
+		6 + /* cik_sdma_ring_emit_pipeline_sync */
+		12 + /* cik_sdma_ring_emit_vm_flush */
+		9 + 9 + 9; /* cik_sdma_ring_emit_fence x3 for user fence, vm fence */
+}
+
 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
 				 bool enable)
 {
@@ -1220,6 +1236,8 @@ static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
 	.test_ib = cik_sdma_ring_test_ib,
 	.insert_nop = cik_sdma_ring_insert_nop,
 	.pad_ib = cik_sdma_ring_pad_ib,
+	.get_emit_ib_size = cik_sdma_ring_get_emit_ib_size,
+	.get_dma_frame_size = cik_sdma_ring_get_dma_frame_size,
 };
 
 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)
-- 
2.5.5



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