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drm/amdgpu: improve vmid assigment V2

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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>
This commit is contained in:
Chunming Zhou 2016-03-17 11:41:37 +08:00 committed by Alex Deucher
parent eca2240fb0
commit 8e9fbeb522
1 changed files with 14 additions and 0 deletions
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14
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
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@ -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);