vmwgfx: Add dmabuf helper functions for pinning
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index b1888e8..191f1b2 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -592,58 +592,6 @@
return 0;
}
-int vmw_dmabuf_from_vram(struct vmw_private *vmw_priv,
- struct vmw_dma_buffer *vmw_bo)
-{
- struct ttm_buffer_object *bo = &vmw_bo->base;
- int ret = 0;
-
- ret = ttm_bo_reserve(bo, false, false, false, 0);
- if (unlikely(ret != 0))
- return ret;
-
- ret = ttm_bo_validate(bo, &vmw_sys_placement, false, false, false);
- ttm_bo_unreserve(bo);
-
- return ret;
-}
-
-int vmw_dmabuf_to_start_of_vram(struct vmw_private *vmw_priv,
- struct vmw_dma_buffer *vmw_bo)
-{
- struct ttm_buffer_object *bo = &vmw_bo->base;
- struct ttm_placement ne_placement = vmw_vram_ne_placement;
- int ret = 0;
-
- ne_placement.lpfn = bo->num_pages;
-
- /* interuptable? */
- ret = ttm_write_lock(&vmw_priv->active_master->lock, false);
- if (unlikely(ret != 0))
- return ret;
-
- ret = ttm_bo_reserve(bo, false, false, false, 0);
- if (unlikely(ret != 0))
- goto err_unlock;
-
- if (bo->mem.mem_type == TTM_PL_VRAM &&
- bo->mem.start < bo->num_pages &&
- bo->mem.start > 0)
- (void) ttm_bo_validate(bo, &vmw_sys_placement, false,
- false, false);
-
- ret = ttm_bo_validate(bo, &ne_placement, false, false, false);
-
- /* Could probably bug on */
- WARN_ON(bo->offset != 0);
-
- ttm_bo_unreserve(bo);
-err_unlock:
- ttm_write_unlock(&vmw_priv->active_master->lock);
-
- return ret;
-}
-
int vmw_fb_off(struct vmw_private *vmw_priv)
{
struct fb_info *info;
@@ -665,7 +613,8 @@
par->bo_ptr = NULL;
ttm_bo_kunmap(&par->map);
- vmw_dmabuf_from_vram(vmw_priv, par->vmw_bo);
+ /* move this to system instead of just unpinning it */
+ vmw_dmabuf_to_system(vmw_priv, par->vmw_bo, false);
return 0;
}
@@ -691,7 +640,7 @@
/* Make sure that all overlays are stoped when we take over */
vmw_overlay_stop_all(vmw_priv);
- ret = vmw_dmabuf_to_start_of_vram(vmw_priv, par->vmw_bo);
+ ret = vmw_dmabuf_to_start_of_vram(vmw_priv, par->vmw_bo, true, false);
if (unlikely(ret != 0)) {
DRM_ERROR("could not move buffer to start of VRAM\n");
goto err_no_buffer;