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nouveau: flip buffer into gart.

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This commit is contained in:
Jeremy Kolb 2007-11-15 20:46:49 -05:00
parent baf5d20297
commit a3e627f8d6
1 changed files with 41 additions and 0 deletions
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41
linux-core/nouveau_buffer.c
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@ -143,6 +143,7 @@ nouveau_bo_evict_mask(struct drm_buffer_object *bo)
return 0;
}
/* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
* DRM_BO_MEM_{VRAM,PRIV0,TT} directly.
*/
@ -195,6 +196,46 @@ nouveau_bo_move_m2mf(struct drm_buffer_object *bo, int evict, int no_wait,
DRM_FENCE_TYPE_EXE, 0, new_mem);
}
/* Flip pages into the GART and move if we can. */
static int
nouveau_bo_flip(struct drm_buffer_object *bo, int evict, int no_wait,
struct drm_bo_mem_reg *new_mem)
{
struct drm_device *dev = bo->dev;
struct drm_bo_mem_reg tmp_mem;
int ret;
tmp_mem = *new_mem;
tmp_mem.mm_node = NULL;
tmp_mem.mask = DRM_BO_FLAG_MEM_TT |
DRM_BO_FLAG_CACHED | DRM_BO_FLAG_FORCE_CACHING;
ret = drm_bo_mem_space(bo, &tmp_mem, no_wait);
if (ret)
return ret;
ret = drm_bind_ttm(bo->ttm, &tmp_mem);
if (ret)
goto out_cleanup;
ret = nouveau_bo_move_m2mf(bo, 1, no_wait, &tmp_mem);
if (ret)
goto out_cleanup;
ret = drm_bo_move_ttm(bo, evict, no_wait, new_mem);
out_cleanup:
if (tmp_mem.mm_node) {
mutex_lock(&dev->struct_mutex);
if (tmp_mem.mm_node != bo->pinned_node)
drm_mm_put_block(tmp_mem.mm_node);
tmp_mem.mm_node = NULL;
mutex_unlock(&dev->struct_mutex);
}
return ret;
}
static int
nouveau_bo_move(struct drm_buffer_object *bo, int evict, int no_wait,
struct drm_bo_mem_reg *new_mem)