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path: root/drivers/gpu/drm/radeon/radeon_gart.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_gart.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_gart.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index b3720054614d..9912182682ec 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -814,7 +814,7 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
return -EINVAL;
}
- if (bo_va->valid)
+ if (bo_va->valid && mem)
return 0;
ngpu_pages = radeon_bo_ngpu_pages(bo);
@@ -859,11 +859,27 @@ int radeon_vm_bo_rmv(struct radeon_device *rdev,
struct radeon_bo *bo)
{
struct radeon_bo_va *bo_va;
+ int r;
bo_va = radeon_bo_va(bo, vm);
if (bo_va == NULL)
return 0;
+ /* wait for va use to end */
+ while (bo_va->fence) {
+ r = radeon_fence_wait(bo_va->fence, false);
+ if (r) {
+ DRM_ERROR("error while waiting for fence: %d\n", r);
+ }
+ if (r == -EDEADLK) {
+ r = radeon_gpu_reset(rdev);
+ if (!r)
+ continue;
+ }
+ break;
+ }
+ radeon_fence_unref(&bo_va->fence);
+
mutex_lock(&rdev->vm_manager.lock);
mutex_lock(&vm->mutex);
radeon_vm_bo_update_pte(rdev, vm, bo, NULL);
@@ -952,12 +968,15 @@ void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm)
radeon_vm_unbind_locked(rdev, vm);
mutex_unlock(&rdev->vm_manager.lock);
- /* remove all bo */
+ /* remove all bo at this point non are busy any more because unbind
+ * waited for the last vm fence to signal
+ */
r = radeon_bo_reserve(rdev->ring_tmp_bo.bo, false);
if (!r) {
bo_va = radeon_bo_va(rdev->ring_tmp_bo.bo, vm);
list_del_init(&bo_va->bo_list);
list_del_init(&bo_va->vm_list);
+ radeon_fence_unref(&bo_va->fence);
radeon_bo_unreserve(rdev->ring_tmp_bo.bo);
kfree(bo_va);
}
@@ -969,6 +988,7 @@ void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm)
r = radeon_bo_reserve(bo_va->bo, false);
if (!r) {
list_del_init(&bo_va->bo_list);
+ radeon_fence_unref(&bo_va->fence);
radeon_bo_unreserve(bo_va->bo);
kfree(bo_va);
}