drm/amdgpu: fix IB test MCBP bug

1)for gfx IB test we shouldn't insert DE meta data

2)we should make sure IB test finished before we
send event 3 to hypervisor otherwise the IDLE from
event 3 will preempt IB test, which is not designed
as a compatible structure for MCBP
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -3193,6 +3193,12 @@ void amdgpu_device_fini(struct amdgpu_device *adev)
 	flush_delayed_work(&adev->delayed_init_work);
 	adev->shutdown = true;
 
+	/* make sure IB test finished before entering exclusive mode
+	 * to avoid preemption on IB test
+	 * */
+	if (amdgpu_sriov_vf(adev))
+		amdgpu_virt_request_full_gpu(adev, false);
+
 	/* disable all interrupts */
 	amdgpu_irq_disable_all(adev);
 	if (adev->mode_info.mode_config_initialized){

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

@@ -88,9 +88,6 @@ void amdgpu_driver_unload_kms(struct drm_device *dev)
 	if (adev->rmmio == NULL)
 		goto done_free;
 
-	if (amdgpu_sriov_vf(adev))
-		amdgpu_virt_request_full_gpu(adev, false);
-
 	if (adev->runpm) {
 		pm_runtime_get_sync(dev->dev);
 		pm_runtime_forbid(dev->dev);

drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c

@@ -4437,7 +4437,7 @@ static void gfx_v10_0_ring_emit_ib_gfx(struct amdgpu_ring *ring,
 		if (flags & AMDGPU_IB_PREEMPTED)
 			control |= INDIRECT_BUFFER_PRE_RESUME(1);
 
-		if (!(ib->flags & AMDGPU_IB_FLAG_CE))
+		if (!(ib->flags & AMDGPU_IB_FLAG_CE) && vmid)
 			gfx_v10_0_ring_emit_de_meta(ring,
 				    (!amdgpu_sriov_vf(ring->adev) && flags & AMDGPU_IB_PREEMPTED) ? true : false);
 	}

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

@@ -6116,7 +6116,7 @@ static void gfx_v8_0_ring_emit_ib_gfx(struct amdgpu_ring *ring,
 	if (amdgpu_sriov_vf(ring->adev) && (ib->flags & AMDGPU_IB_FLAG_PREEMPT)) {
 		control |= INDIRECT_BUFFER_PRE_ENB(1);
 
-		if (!(ib->flags & AMDGPU_IB_FLAG_CE))
+		if (!(ib->flags & AMDGPU_IB_FLAG_CE) && vmid)
 			gfx_v8_0_ring_emit_de_meta(ring);
 	}
 

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -4985,7 +4985,7 @@ static void gfx_v9_0_ring_emit_ib_gfx(struct amdgpu_ring *ring,
 	if (amdgpu_sriov_vf(ring->adev) && (ib->flags & AMDGPU_IB_FLAG_PREEMPT)) {
 		control |= INDIRECT_BUFFER_PRE_ENB(1);
 
-		if (!(ib->flags & AMDGPU_IB_FLAG_CE))
+		if (!(ib->flags & AMDGPU_IB_FLAG_CE) && vmid)
 			gfx_v9_0_ring_emit_de_meta(ring);
 	}