Re: [PATCH v2 4/6] drm/ttm: stop allocating dummy resources during BO creation

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On 1/30/2023 1:06 PM, Matthew Auld wrote:
From: Christian König <christian.koenig@xxxxxxx>

That should not be necessary any more when drivers should at least be
able to handle the move without a resource.

Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx>
Acked-by: Nirmoy Das <nirmoy.das@xxxxxxxxx>
---
  drivers/gpu/drm/ttm/ttm_bo.c | 7 -------
  1 file changed, 7 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 773080f48864..169818b32be2 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -952,7 +952,6 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, struct ttm_buffer_object *bo,
  			 struct sg_table *sg, struct dma_resv *resv,
  			 void (*destroy) (struct ttm_buffer_object *))
  {
-	static const struct ttm_place sys_mem = { .mem_type = TTM_PL_SYSTEM };
  	int ret;
kref_init(&bo->kref);
@@ -969,12 +968,6 @@ int ttm_bo_init_reserved(struct ttm_device *bdev, struct ttm_buffer_object *bo,
  		bo->base.resv = &bo->base._resv;
  	atomic_inc(&ttm_glob.bo_count);
- ret = ttm_resource_alloc(bo, &sys_mem, &bo->resource);
-	if (unlikely(ret)) {
-		ttm_bo_put(bo);
-		return ret;
-	}
-
  	/*
  	 * For ttm_bo_type_device buffers, allocate
  	 * address space from the device.



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