No need to reset the wptr and clear the rings. The UNMAP_QUEUES
packet writes the current MQD state back the MQD on suspend,
so there is no need to reset it as well.
v2: fix from gfx8 (Rex)
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 28 +++++++++++++++-------------
1 file changed, 15 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 5a8c63e..b3936f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2130,18 +2130,7 @@ static int gfx_v9_0_kiq_init_queue(struct amdgpu_ring *ring)
gfx_v9_0_kiq_setting(ring);
- if (!adev->gfx.in_reset) {
- memset((void *)mqd, 0, sizeof(*mqd));
- mutex_lock(&adev->srbm_mutex);
- soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
- gfx_v9_0_mqd_init(ring);
- gfx_v9_0_kiq_init_register(ring);
- soc15_grbm_select(adev, 0, 0, 0, 0);
- mutex_unlock(&adev->srbm_mutex);
-
- if (adev->gfx.mec.mqd_backup[mqd_idx])
- memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
- } else { /* for GPU_RESET case */
+ if (adev->gfx.in_reset) { /* for GPU_RESET case */
/* reset MQD to a clean status */
if (adev->gfx.mec.mqd_backup[mqd_idx])
memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
@@ -2155,6 +2144,17 @@ static int gfx_v9_0_kiq_init_queue(struct amdgpu_ring *ring)
gfx_v9_0_kiq_init_register(ring);
soc15_grbm_select(adev, 0, 0, 0, 0);
mutex_unlock(&adev->srbm_mutex);
+ } else {
+ memset((void *)mqd, 0, sizeof(*mqd));
+ mutex_lock(&adev->srbm_mutex);
+ soc15_grbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
+ gfx_v9_0_mqd_init(ring);
+ gfx_v9_0_kiq_init_register(ring);
+ soc15_grbm_select(adev, 0, 0, 0, 0);
+ mutex_unlock(&adev->srbm_mutex);
+
+ if (adev->gfx.mec.mqd_backup[mqd_idx])
+ memcpy(adev->gfx.mec.mqd_backup[mqd_idx], mqd, sizeof(*mqd));
}
return 0;
@@ -2176,7 +2176,7 @@ 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(*mqd));
- } else { /* for GPU_RESET case */
+ } else if (adev->gfx.in_reset) { /* for GPU_RESET case */
/* reset MQD to a clean status */
if (adev->gfx.mec.mqd_backup[mqd_idx])
memcpy(mqd, adev->gfx.mec.mqd_backup[mqd_idx], sizeof(*mqd));
@@ -2184,6 +2184,8 @@ static int gfx_v9_0_kcq_init_queue(struct amdgpu_ring *ring)
/* reset ring buffer */
ring->wptr = 0;
amdgpu_ring_clear_ring(ring);
+ } else {
+ amdgpu_ring_clear_ring(ring);
}
return 0;
--
2.5.5
