1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 7683d7fd6463..7b683fb2173c 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -3144,6 +3144,12 @@ static int gfx_v8_0_cp_compute_resume(struct amdgpu_device *adev)
                 WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL,
                        mqd->cp_hqd_pq_doorbell_control);
 
+                /* reset read and write pointers, similar to CP_RB0_WPTR/_RPTR */
+                ring->wptr = 0;
+                mqd->cp_hqd_pq_wptr = ring->wptr;
+                WREG32(mmCP_HQD_PQ_WPTR, mqd->cp_hqd_pq_wptr);
+                mqd->cp_hqd_pq_rptr = RREG32(mmCP_HQD_PQ_RPTR);
+
                 /* set the vmid for the queue */
                 mqd->cp_hqd_vmid = 0;
                 WREG32(mmCP_HQD_VMID, mqd->cp_hqd_vmid);