From: jqdeng <Emily.Deng@amd.com>
Date: Fri, 7 Aug 2020 09:31:19 +0000 (+0800)
Subject: drm/amdgpu: Fix repeatly flr issue
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=9a1cddd6374fb1eb166f40f10d5411e3699066d4;p=linux.git

drm/amdgpu: Fix repeatly flr issue

Only for no job running test case need to do recover in
flr notification.
For having job in mirror list, then let guest driver to
hit job timeout, and then do recover.

Signed-off-by: jqdeng <Emily.Deng@amd.com>
Acked-by: Nirmoy Das <nirmoy.das@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 08f80ca3b296c..54666eea18639 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1133,6 +1133,7 @@ int emu_soc_asic_init(struct amdgpu_device *adev);
 #define amdgpu_inc_vram_lost(adev) atomic_inc(&((adev)->vram_lost_counter));
 
 /* Common functions */
+bool amdgpu_device_has_job_running(struct amdgpu_device *adev);
 bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev);
 int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
 			      struct amdgpu_job* job);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 415e1a32b98c2..6573e11124624 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3922,6 +3922,34 @@ error:
 	return r;
 }
 
+/**
+ * amdgpu_device_has_job_running - check if there is any job in mirror list
+ *
+ * @adev: amdgpu device pointer
+ *
+ * check if there is any job in mirror list
+ */
+bool amdgpu_device_has_job_running(struct amdgpu_device *adev)
+{
+	int i;
+	struct drm_sched_job *job;
+
+	for (i = 0; i < AMDGPU_MAX_RINGS; ++i) {
+		struct amdgpu_ring *ring = adev->rings[i];
+
+		if (!ring || !ring->sched.thread)
+			continue;
+
+		spin_lock(&ring->sched.job_list_lock);
+		job = list_first_entry_or_null(&ring->sched.ring_mirror_list,
+				struct drm_sched_job, node);
+		spin_unlock(&ring->sched.job_list_lock);
+		if (job)
+			return true;
+	}
+	return false;
+}
+
 /**
  * amdgpu_device_should_recover_gpu - check if we should try GPU recovery
  *
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
index 5fd67e1cc2a04..475ff5df8c873 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
@@ -268,7 +268,7 @@ flr_done:
 
 	/* Trigger recovery for world switch failure if no TDR */
 	if (amdgpu_device_should_recover_gpu(adev)
-		&& adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT)
+		&& (amdgpu_device_has_job_running(adev) || adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT))
 		amdgpu_device_gpu_recover(adev, NULL);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
index ce2bf1fb79ed1..9cf695c05db39 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
@@ -289,7 +289,8 @@ flr_done:
 
 	/* Trigger recovery for world switch failure if no TDR */
 	if (amdgpu_device_should_recover_gpu(adev)
-		&& (adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT ||
+		&& (amdgpu_device_has_job_running(adev) ||
+		adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT ||
 		adev->gfx_timeout == MAX_SCHEDULE_TIMEOUT ||
 		adev->compute_timeout == MAX_SCHEDULE_TIMEOUT ||
 		adev->video_timeout == MAX_SCHEDULE_TIMEOUT))