[PATCH 1/2] drm/ttm: drop special pipeline accel cleanup function.
Dave Airlie
airlied at gmail.com
Thu Sep 17 06:41:31 UTC 2020
From: Dave Airlie <airlied at redhat.com>
The two accel cleanup paths were mostly the same once refactored.
Just pass a bool to say if the evictions are to be pipelined.
Signed-off-by: Dave Airlie <airlied at redhat.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 5 +-
drivers/gpu/drm/nouveau/nouveau_bo.c | 2 +-
drivers/gpu/drm/radeon/radeon_ttm.c | 2 +-
drivers/gpu/drm/ttm/ttm_bo_util.c | 89 +++++++++----------------
include/drm/ttm/ttm_bo_driver.h | 17 +----
5 files changed, 37 insertions(+), 78 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index a57aaf666340..1ea58ce7c559 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -499,10 +499,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
}
/* Always block for VM page tables before committing the new location */
- if (bo->type == ttm_bo_type_kernel)
- r = ttm_bo_move_accel_cleanup(bo, fence, true, new_mem);
- else
- r = ttm_bo_pipeline_move(bo, fence, evict, new_mem);
+ r = ttm_bo_move_accel_cleanup(bo, fence, true, bo->type != ttm_bo_type_kernel, new_mem);
dma_fence_put(fence);
return r;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 56f974c28eb5..2ee75646ad6f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -824,7 +824,7 @@ nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
if (ret == 0) {
ret = ttm_bo_move_accel_cleanup(bo,
&fence->base,
- evict,
+ evict, false,
new_reg);
nouveau_fence_unref(&fence);
}
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 99d9ca1087b7..36150b7f31a9 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -200,7 +200,7 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
if (IS_ERR(fence))
return PTR_ERR(fence);
- r = ttm_bo_move_accel_cleanup(bo, &fence->base, evict, new_mem);
+ r = ttm_bo_move_accel_cleanup(bo, &fence->base, evict, false, new_mem);
radeon_fence_unref(&fence);
return r;
}
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 502d334786d2..777f843cdb98 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -581,81 +581,56 @@ static int ttm_bo_move_to_ghost(struct ttm_buffer_object *bo,
return 0;
}
-int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
- struct dma_fence *fence,
- bool evict,
- struct ttm_resource *new_mem)
+static void ttm_bo_move_pipeline_evict(struct ttm_buffer_object *bo,
+ struct dma_fence *fence)
{
struct ttm_bo_device *bdev = bo->bdev;
- struct ttm_resource_manager *man = ttm_manager_type(bdev, new_mem->mem_type);
- int ret;
+ struct ttm_resource_manager *from = ttm_manager_type(bdev, bo->mem.mem_type);
- dma_resv_add_excl_fence(bo->base.resv, fence);
- if (evict)
- ret = ttm_bo_wait_free_node(bo, man->use_tt);
- else
- ret = ttm_bo_move_to_ghost(bo, fence, man->use_tt);
- if (ret)
- return ret;
+ /**
+ * BO doesn't have a TTM we need to bind/unbind. Just remember
+ * this eviction and free up the allocation
+ */
+ spin_lock(&from->move_lock);
+ if (!from->move || dma_fence_is_later(fence, from->move)) {
+ dma_fence_put(from->move);
+ from->move = dma_fence_get(fence);
+ }
+ spin_unlock(&from->move_lock);
- ttm_bo_assign_mem(bo, new_mem);
+ ttm_bo_free_old_node(bo);
- return 0;
+ dma_fence_put(bo->moving);
+ bo->moving = dma_fence_get(fence);
}
-EXPORT_SYMBOL(ttm_bo_move_accel_cleanup);
-int ttm_bo_pipeline_move(struct ttm_buffer_object *bo,
- struct dma_fence *fence, bool evict,
- struct ttm_resource *new_mem)
+int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
+ struct dma_fence *fence,
+ bool evict,
+ bool pipeline,
+ struct ttm_resource *new_mem)
{
struct ttm_bo_device *bdev = bo->bdev;
-
struct ttm_resource_manager *from = ttm_manager_type(bdev, bo->mem.mem_type);
- struct ttm_resource_manager *to = ttm_manager_type(bdev, new_mem->mem_type);
-
- int ret;
+ struct ttm_resource_manager *man = ttm_manager_type(bdev, new_mem->mem_type);
+ int ret = 0;
dma_resv_add_excl_fence(bo->base.resv, fence);
+ if (!evict)
+ ret = ttm_bo_move_to_ghost(bo, fence, man->use_tt);
+ else if (!from->use_tt && pipeline)
+ ttm_bo_move_pipeline_evict(bo, fence);
+ else
+ ret = ttm_bo_wait_free_node(bo, man->use_tt);
- if (!evict) {
- ret = ttm_bo_move_to_ghost(bo, fence, to->use_tt);
- if (ret)
- return ret;
- } else if (!from->use_tt) {
-
- /**
- * BO doesn't have a TTM we need to bind/unbind. Just remember
- * this eviction and free up the allocation
- */
-
- spin_lock(&from->move_lock);
- if (!from->move || dma_fence_is_later(fence, from->move)) {
- dma_fence_put(from->move);
- from->move = dma_fence_get(fence);
- }
- spin_unlock(&from->move_lock);
-
- ttm_bo_free_old_node(bo);
-
- dma_fence_put(bo->moving);
- bo->moving = dma_fence_get(fence);
-
- } else {
- /**
- * Last resort, wait for the move to be completed.
- *
- * Should never happen in pratice.
- */
- ret = ttm_bo_wait_free_node(bo, to->use_tt);
- if (ret)
- return ret;
- }
+ if (ret)
+ return ret;
ttm_bo_assign_mem(bo, new_mem);
return 0;
}
-EXPORT_SYMBOL(ttm_bo_pipeline_move);
+EXPORT_SYMBOL(ttm_bo_move_accel_cleanup);
int ttm_bo_pipeline_gutting(struct ttm_buffer_object *bo)
{
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 25cc932d63f1..864afa8f6f18 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -642,6 +642,7 @@ void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
* @bo: A pointer to a struct ttm_buffer_object.
* @fence: A fence object that signals when moving is complete.
* @evict: This is an evict move. Don't return until the buffer is idle.
+ * @pipeline: evictions are to be pipelined.
* @new_mem: struct ttm_resource indicating where to move.
*
* Accelerated move function to be called when an accelerated move
@@ -653,23 +654,9 @@ void ttm_bo_free_old_node(struct ttm_buffer_object *bo);
*/
int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
struct dma_fence *fence, bool evict,
+ bool pipeline,
struct ttm_resource *new_mem);
-/**
- * ttm_bo_pipeline_move.
- *
- * @bo: A pointer to a struct ttm_buffer_object.
- * @fence: A fence object that signals when moving is complete.
- * @evict: This is an evict move. Don't return until the buffer is idle.
- * @new_mem: struct ttm_resource indicating where to move.
- *
- * Function for pipelining accelerated moves. Either free the memory
- * immediately or hang it on a temporary buffer object.
- */
-int ttm_bo_pipeline_move(struct ttm_buffer_object *bo,
- struct dma_fence *fence, bool evict,
- struct ttm_resource *new_mem);
-
/**
* ttm_bo_pipeline_gutting.
*
--
2.27.0
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