[PATCH] drm/amdgpu: avoid over-handle of fence driver fini in s3 test

[Guchun Chen]

In amdgpu_fence_driver_hw_fini, no need to call drm_sched_fini to stop
scheduler in s3 test, otherwise, fence errors will occur after resume.
So introduce a new parameter to distingiush the case in this API.

Fixes: cd87a6dcf6af drm/amdgpu: adjust fence driver enable sequence
Signed-off-by: Guchun Chen <guchun.chen at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c  | 8 +++++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h   | 2 +-
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index b1d2dc39e8be..aaff8ebbb7dc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3844,7 +3844,7 @@ void amdgpu_device_fini_hw(struct amdgpu_device *adev)
 		else
 			drm_atomic_helper_shutdown(adev_to_drm(adev));
 	}
-	amdgpu_fence_driver_hw_fini(adev);
+	amdgpu_fence_driver_hw_fini(adev, false);
 
 	if (adev->pm_sysfs_en)
 		amdgpu_pm_sysfs_fini(adev);
@@ -3941,7 +3941,7 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
 	/* evict vram memory */
 	amdgpu_bo_evict_vram(adev);
 
-	amdgpu_fence_driver_hw_fini(adev);
+	amdgpu_fence_driver_hw_fini(adev, adev->in_suspend);
 
 	amdgpu_device_ip_suspend_phase2(adev);
 	/* evict remaining vram memory
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 49c5c7331c53..7e6a73c2919d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -515,14 +515,15 @@ int amdgpu_fence_driver_init(struct amdgpu_device *adev)
 }
 
 /**
- * amdgpu_fence_driver_fini - tear down the fence driver
+ * amdgpu_fence_driver_hw_fini - tear down the fence driver
  * for all possible rings.
  *
  * @adev: amdgpu device pointer
+ * @in_reset: indicator to distingiush device removal case or s3 case
  *
  * Tear down the fence driver for all possible rings (all asics).
  */
-void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev)
+void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev, bool in_reset)
 {
 	int i, r;
 
@@ -531,8 +532,9 @@ void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev)
 
 		if (!ring || !ring->fence_drv.initialized)
 			continue;
-		if (!ring->no_scheduler)
+		if (!ring->no_scheduler && !in_reset)
 			drm_sched_fini(&ring->sched);
+
 		/* You can't wait for HW to signal if it's gone */
 		if (!drm_dev_is_unplugged(&adev->ddev))
 			r = amdgpu_fence_wait_empty(ring);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
index 27adffa7658d..42cbecfc26a3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h
@@ -115,7 +115,7 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring,
 int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring,
 				   struct amdgpu_irq_src *irq_src,
 				   unsigned irq_type);
-void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev);
+void amdgpu_fence_driver_hw_fini(struct amdgpu_device *adev, bool in_reset);
 void amdgpu_fence_driver_sw_fini(struct amdgpu_device *adev);
 void amdgpu_fence_driver_hw_init(struct amdgpu_device *adev);
 int amdgpu_fence_emit(struct amdgpu_ring *ring, struct dma_fence **fence,
-- 
2.17.1