drm/amdgpu/gfx9: always restore kcq MQDs

Always restore the MQD not just when we do a reset.
This allows us to move the MQD to VRAM if we want.

v2: always reset ring pointer as well (Christian)

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 8fb027c..4a75560 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -3589,17 +3589,14 @@ static int gfx_v9_0_kcq_init_queue(struct amdgpu_ring *ring)
 
                if (adev->gfx.mec.mqd_backup[mqd_idx])
                        memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(struct v9_mqd_allocation));
-       } else if (amdgpu_in_reset(adev)) { /* for GPU_RESET case */
-               /* reset MQD to a clean status */
+       } else {
+               /* restore MQD to a clean status */
                if (adev->gfx.mec.mqd_backup[mqd_idx])
                        memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(struct v9_mqd_allocation));
-
                /* reset ring buffer */
                ring->wptr = 0;
                atomic64_set((atomic64_t *)ring->wptr_cpu_addr, 0);
                amdgpu_ring_clear_ring(ring);
-       } else {
-               amdgpu_ring_clear_ring(ring);
        }
 
        return 0;

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
index 3124914..b592454 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
@@ -1799,17 +1799,14 @@ static int gfx_v9_4_3_kcq_init_queue(struct amdgpu_ring *ring, int xcc_id)
 
                if (adev->gfx.mec.mqd_backup[mqd_idx])
                        memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(struct v9_mqd_allocation));
-       } else if (amdgpu_in_reset(adev)) { /* for GPU_RESET case */
-               /* reset MQD to a clean status */
+       } else {
+               /* restore MQD to a clean status */
                if (adev->gfx.mec.mqd_backup[mqd_idx])
                        memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(struct v9_mqd_allocation));
-
                /* reset ring buffer */
                ring->wptr = 0;
                atomic64_set((atomic64_t *)&adev->wb.wb[ring->wptr_offs], 0);
                amdgpu_ring_clear_ring(ring);
-       } else {
-               amdgpu_ring_clear_ring(ring);
        }
 
        return 0;