[PATCH 1/6] drm/amdgpu: don't use MM idle_work for SRIOV(v2)

[Monk Liu]

SRIOV doesn't give VF cg/pg feature so the MM's idle_work
is skipped for SR-IOV

v2:
remove superfluous changes
since idle_work is not scheduled for SR-IOV so the condition
check for SR-IOV inside idle_work also can be dropped

Change-Id: I6dd7ea48d23b0fee74ecb9e93b53bfe36b0e8164
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 12 ++++++------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c |  9 ++++-----
 2 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index 9cd5517..85dc7fc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -297,7 +297,8 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
 	if (adev->uvd.vcpu_bo == NULL)
 		return 0;
 
-	cancel_delayed_work_sync(&adev->uvd.idle_work);
+	if (!amdgpu_sriov_vf(adev))
+		cancel_delayed_work_sync(&adev->uvd.idle_work);
 
 	for (i = 0; i < adev->uvd.max_handles; ++i)
 		if (atomic_read(&adev->uvd.handles[i]))
@@ -1116,9 +1117,6 @@ static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
 		container_of(work, struct amdgpu_device, uvd.idle_work.work);
 	unsigned fences = amdgpu_fence_count_emitted(&adev->uvd.ring);
 
-	if (amdgpu_sriov_vf(adev))
-		return;
-
 	if (fences == 0) {
 		if (adev->pm.dpm_enabled) {
 			amdgpu_dpm_enable_uvd(adev, false);
@@ -1138,11 +1136,12 @@ static void amdgpu_uvd_idle_work_handler(struct work_struct *work)
 void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
 {
 	struct amdgpu_device *adev = ring->adev;
-	bool set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
+	bool set_clocks;
 
 	if (amdgpu_sriov_vf(adev))
 		return;
 
+	set_clocks = !cancel_delayed_work_sync(&adev->uvd.idle_work);
 	if (set_clocks) {
 		if (adev->pm.dpm_enabled) {
 			amdgpu_dpm_enable_uvd(adev, true);
@@ -1158,7 +1157,8 @@ void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring)
 
 void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring)
 {
-	schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
+	if (!amdgpu_sriov_vf(ring->adev))
+		schedule_delayed_work(&ring->adev->uvd.idle_work, UVD_IDLE_TIMEOUT);
 }
 
 /**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
index d274ae5..a5239b8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.c
@@ -241,7 +241,8 @@ int amdgpu_vce_suspend(struct amdgpu_device *adev)
 	if (i == AMDGPU_MAX_VCE_HANDLES)
 		return 0;
 
-	cancel_delayed_work_sync(&adev->vce.idle_work);
+	if (!amdgpu_sriov_vf(adev))
+		cancel_delayed_work_sync(&adev->vce.idle_work);
 	/* TODO: suspending running encoding sessions isn't supported */
 	return -EINVAL;
 }
@@ -300,9 +301,6 @@ static void amdgpu_vce_idle_work_handler(struct work_struct *work)
 		container_of(work, struct amdgpu_device, vce.idle_work.work);
 	unsigned i, count = 0;
 
-	if (amdgpu_sriov_vf(adev))
-		return;
-
 	for (i = 0; i < adev->vce.num_rings; i++)
 		count += amdgpu_fence_count_emitted(&adev->vce.ring[i]);
 
@@ -362,7 +360,8 @@ void amdgpu_vce_ring_begin_use(struct amdgpu_ring *ring)
  */
 void amdgpu_vce_ring_end_use(struct amdgpu_ring *ring)
 {
-	schedule_delayed_work(&ring->adev->vce.idle_work, VCE_IDLE_TIMEOUT);
+	if (!amdgpu_sriov_vf(ring->adev))
+		schedule_delayed_work(&ring->adev->vce.idle_work, VCE_IDLE_TIMEOUT);
 }
 
 /**
-- 
2.7.4