1 files changed, 41 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0442-drm-amdgpu-improve-vmid-assigment-V2.patch b/common/recipes-kernel/linux/files/0442-drm-amdgpu-improve-vmid-assigment-V2.patch
new file mode 100644
index 00000000..eb82ef05
--- /dev/null
+++ b/common/recipes-kernel/linux/files/0442-drm-amdgpu-improve-vmid-assigment-V2.patch
@@ -0,0 +1,41 @@
+From 6863e41d9fcd67a8b91775a459fb92d54b98089b Mon Sep 17 00:00:00 2001
+From: Chunming Zhou <David1.Zhou@amd.com>
+Date: Thu, 17 Mar 2016 11:41:37 +0800
+Subject: [PATCH 0442/1110] drm/amdgpu: improve vmid assigment V2
+
+V2: the signaled items on the LRU maintain their order
+
+Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
+Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
+---
+ drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+index e2effcf..ac4e092 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+@@ -223,6 +223,20 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
+ 				      struct amdgpu_vm_manager_id,
+ 				      list);
+ 
++	if (id->mgr_id->active && !fence_is_signaled(id->mgr_id->active)) {
++		struct amdgpu_vm_manager_id *mgr_id, *tmp;
++		struct list_head *head = &adev->vm_manager.ids_lru;
++		list_for_each_entry_safe(mgr_id, tmp, &adev->vm_manager.ids_lru, list) {
++			if (mgr_id->active && fence_is_signaled(mgr_id->active)) {
++				list_move(&mgr_id->list, head);
++				head = &mgr_id->list;
++			}
++		}
++		id->mgr_id = list_first_entry(&adev->vm_manager.ids_lru,
++					      struct amdgpu_vm_manager_id,
++					      list);
++	}
++
+ 	r = amdgpu_sync_fence(ring->adev, sync, id->mgr_id->active);
+ 	if (!r) {
+ 		fence_put(id->mgr_id->active);
+-- 
+2.7.4
+