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From eb9b5b91a85f2aa32a5315a86933e9647cf25f78 Mon Sep 17 00:00:00 2001
From: Brian Welty <brian.welty@intel.com>
Date: Fri, 16 Aug 2019 14:59:16 -0400
Subject: [PATCH 3959/4256] drm/ttm: Refactor ttm_bo_pipeline_move
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
ttm_bo_pipeline_move needlessly duplicates code. Refactor this to
instead call ttm_bo_move_accel_cleanup.
Signed-off-by: Brian Welty <brian.welty@intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
---
drivers/gpu/drm/ttm/ttm_bo_util.c | 64 +++----------------------------
1 file changed, 5 insertions(+), 59 deletions(-)
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 046a6dda690a..23fa015be34e 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -747,49 +747,10 @@ int ttm_bo_pipeline_move(struct ttm_buffer_object *bo,
{
struct ttm_bo_device *bdev = bo->bdev;
struct ttm_mem_reg *old_mem = &bo->mem;
-
struct ttm_mem_type_manager *from = &bdev->man[old_mem->mem_type];
- struct ttm_mem_type_manager *to = &bdev->man[new_mem->mem_type];
-
- int ret;
-
- reservation_object_add_excl_fence(bo->resv, fence);
-
- if (!evict) {
- struct ttm_buffer_object *ghost_obj;
-
- /**
- * This should help pipeline ordinary buffer moves.
- *
- * Hang old buffer memory on a new buffer object,
- * and leave it to be released when the GPU
- * operation has completed.
- */
-
- dma_fence_put(bo->moving);
- bo->moving = dma_fence_get(fence);
- ret = ttm_buffer_object_transfer(bo, &ghost_obj);
- if (ret)
- return ret;
-
- reservation_object_add_excl_fence(ghost_obj->resv, fence);
-
- /**
- * If we're not moving to fixed memory, the TTM object
- * needs to stay alive. Otherwhise hang it on the ghost
- * bo to be unbound and destroyed.
- */
-
- if (!(to->flags & TTM_MEMTYPE_FLAG_FIXED))
- ghost_obj->ttm = NULL;
- else
- bo->ttm = NULL;
-
- ttm_bo_unreserve(ghost_obj);
- ttm_bo_put(ghost_obj);
-
- } else if (from->flags & TTM_MEMTYPE_FLAG_FIXED) {
+ if (evict && from->flags & TTM_MEMTYPE_FLAG_FIXED) {
+ reservation_object_add_excl_fence(bo->resv, fence);
/**
* BO doesn't have a TTM we need to bind/unbind. Just remember
@@ -808,27 +769,12 @@ int ttm_bo_pipeline_move(struct ttm_buffer_object *bo,
dma_fence_put(bo->moving);
bo->moving = dma_fence_get(fence);
+ *old_mem = *new_mem;
+ new_mem->mm_node = NULL;
} else {
- /**
- * Last resort, wait for the move to be completed.
- *
- * Should never happen in pratice.
- */
-
- ret = ttm_bo_wait(bo, false, false);
- if (ret)
- return ret;
-
- if (to->flags & TTM_MEMTYPE_FLAG_FIXED) {
- ttm_tt_destroy(bo->ttm);
- bo->ttm = NULL;
- }
- ttm_bo_free_old_node(bo);
+ return ttm_bo_move_accel_cleanup(bo, fence, evict, new_mem);
}
- *old_mem = *new_mem;
- new_mem->mm_node = NULL;
-
return 0;
}
EXPORT_SYMBOL(ttm_bo_pipeline_move);
--
2.17.1
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