From 8e9fbeb522fa3043dc65ef0e383af28843950799 Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Thu, 17 Mar 2016 11:41:37 +0800 Subject: [PATCH] drm/amdgpu: improve vmid assigment V2 V2: the signaled items on the LRU maintain their order Signed-off-by: Chunming Zhou Signed-off-by: Alex Deucher --- 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 b6c011b83641..6630732ea1bd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -216,6 +216,20 @@ 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); -- 2.20.1