[PATCH 2/2] drm/amdgpu: use GFP_ATOMIC instead of NOWAIT in the critical path

["Christian König" <ckoenig.leichtzumerken@gmail.com>]

Otherwise job submissions can fail with ENOMEM.

We probably need to re-design the per VMID tracking at some point.

Signed-off-by: Christian König <christian.koenig@amd.com>
Fixes: https://gitlab.freedesktop.org/drm/amd/-/issues/4258#note_3179934
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
index 5f94a66511af..ecf2b1f13ca7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c
@@ -286,7 +286,7 @@ static int amdgpu_vmid_grab_reserved(struct amdgpu_vm *vm,
 	* user of the VMID.
 	*/
 	r = amdgpu_sync_fence(&(*id)->active, &job->base.s_fence->finished,
-			      GFP_NOWAIT);
+			      GFP_ATOMIC);
 	if (r)
 		return r;
 
@@ -346,7 +346,7 @@ static int amdgpu_vmid_grab_used(struct amdgpu_vm *vm,
 		 */
 		r = amdgpu_sync_fence(&(*id)->active,
 				      &job->base.s_fence->finished,
-				      GFP_NOWAIT);
+				      GFP_ATOMIC);
 		if (r)
 			return r;
 
@@ -399,7 +399,7 @@ int amdgpu_vmid_grab(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
 			/* Remember this submission as user of the VMID */
 			r = amdgpu_sync_fence(&id->active,
 					      &job->base.s_fence->finished,
-					      GFP_NOWAIT);
+					      GFP_ATOMIC);
 			if (r)
 				goto error;
 
-- 
2.43.0