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path: root/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
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Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 8fecdc5cef43..32b70049fd91 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -760,6 +760,13 @@ static int vcn_v1_0_start(struct amdgpu_device *adev)
WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR, 0);
WREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_CNTL, 0x00000002L);
+ /* initialize wptr */
+ ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
+
+ /* copy patch commands to the jpeg ring */
+ vcn_v1_0_jpeg_ring_set_patch_ring(ring,
+ (ring->wptr + ring->max_dw * amdgpu_sched_hw_submission));
+
return 0;
}