If doorbell is used for wptr update, we also need to use it to initialize wptr to 0. Change-Id: Ieb31a6726a9ac8d45e51f0370ef5f77dc5ec7c06 Signed-off-by: Yintian Tao <yttao at amd.com> --- drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c index cfd968e..a154faf 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c @@ -643,8 +643,9 @@ static int sdma_v3_0_gfx_resume(struct amdgpu_device *adev) WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl); /* Initialize the ring buffer's read and write pointers */ + ring->wptr = 0; WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0); - WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0); + sdma_v3_0_ring_set_wptr(ring); WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0); WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0); -- 1.9.1
