NAK, we already tried that and it is really not a good idea because it
massively increases the per submission overhead.
Christian.
Am 27.03.2018 um 12:16 schrieb Chunming Zhou:
Change-Id: Ibad84ed585b0746867a5f4cd1eadc2273e7cf596
Signed-off-by: Chunming Zhou <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 15 +++++++++++++++
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 1 +
3 files changed, 18 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 383bf2d31c92..414e61799236 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -919,6 +919,8 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser
*p)
}
}
+ amdgpu_vm_refresh_lru(adev, vm);
+
return r;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 5e35e23511cf..8ad2bb705765 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1902,6 +1902,21 @@ struct amdgpu_bo_va *amdgpu_vm_bo_add(struct
amdgpu_device *adev,
return bo_va;
}
+void amdgpu_vm_refresh_lru(struct amdgpu_device *adev, struct amdgpu_vm *vm)
+{
+ struct ttm_bo_global *glob = adev->mman.bdev.glob;
+ struct amdgpu_vm_bo_base *bo_base;
+
+ spin_lock(&vm->status_lock);
+ list_for_each_entry(bo_base, &vm->vm_bo_list, vm_bo) {
+ spin_lock(&glob->lru_lock);
+ ttm_bo_move_to_lru_tail(&bo_base->bo->tbo);
+ if (bo_base->bo->shadow)
+ ttm_bo_move_to_lru_tail(&bo_base->bo->shadow->tbo);
+ spin_unlock(&glob->lru_lock);
+ }
+ spin_unlock(&vm->status_lock);
+}
/**
* amdgpu_vm_bo_insert_mapping - insert a new mapping
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 1886a561c84e..e01895581489 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -285,6 +285,7 @@ int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
struct dma_fence **fence);
int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
struct amdgpu_vm *vm);
+void amdgpu_vm_refresh_lru(struct amdgpu_device *adev, struct amdgpu_vm *vm);
int amdgpu_vm_bo_update(struct amdgpu_device *adev,
struct amdgpu_bo_va *bo_va,
bool clear);
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