drm/amdgpu: use scheduler fault instead of reset work

Signal a fault to the scheduler on an illegal instruction or register
access violation instead of kicking of the reset handler directly.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 29 insertions, 2 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 617b0c8908a3..ba614f26f553 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -6738,12 +6738,39 @@ static int gfx_v8_0_eop_irq(struct amdgpu_device *adev,
 	return 0;
 }
 
+static void gfx_v8_0_fault(struct amdgpu_device *adev,
+			   struct amdgpu_iv_entry *entry)
+{
+	u8 me_id, pipe_id, queue_id;
+	struct amdgpu_ring *ring;
+	int i;
+
+	me_id = (entry->ring_id & 0x0c) >> 2;
+	pipe_id = (entry->ring_id & 0x03) >> 0;
+	queue_id = (entry->ring_id & 0x70) >> 4;
+
+	switch (me_id) {
+	case 0:
+		drm_sched_fault(&adev->gfx.gfx_ring[0].sched);
+		break;
+	case 1:
+	case 2:
+		for (i = 0; i < adev->gfx.num_compute_rings; i++) {
+			ring = &adev->gfx.compute_ring[i];
+			if (ring->me == me_id && ring->pipe == pipe_id &&
+			    ring->queue == queue_id)
+				drm_sched_fault(&ring->sched);
+		}
+		break;
+	}
+}
+
 static int gfx_v8_0_priv_reg_irq(struct amdgpu_device *adev,
 				 struct amdgpu_irq_src *source,
 				 struct amdgpu_iv_entry *entry)
 {
 	DRM_ERROR("Illegal register access in command stream\n");
-	schedule_work(&adev->reset_work);
+	gfx_v8_0_fault(adev, entry);
 	return 0;
 }
 
@@ -6752,7 +6779,7 @@ static int gfx_v8_0_priv_inst_irq(struct amdgpu_device *adev,
 				  struct amdgpu_iv_entry *entry)
 {
 	DRM_ERROR("Illegal instruction in command stream\n");
-	schedule_work(&adev->reset_work);
+	gfx_v8_0_fault(adev, entry);
 	return 0;
 }