vmwgfx: Refactor cursor update

Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 37d4054..bee6716 100644 (file)
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -82,6 +82,43 @@ int vmw_cursor_update_image(struct vmw_private *dev_priv,
        return 0;
 }
 
+int vmw_cursor_update_dmabuf(struct vmw_private *dev_priv,
+                            struct vmw_dma_buffer *dmabuf,
+                            u32 width, u32 height,
+                            u32 hotspotX, u32 hotspotY)
+{
+       struct ttm_bo_kmap_obj map;
+       unsigned long kmap_offset;
+       unsigned long kmap_num;
+       void *virtual;
+       bool dummy;
+       int ret;
+
+       kmap_offset = 0;
+       kmap_num = (width*height*4 + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+       ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
+       if (unlikely(ret != 0)) {
+               DRM_ERROR("reserve failed\n");
+               return -EINVAL;
+       }
+
+       ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
+       if (unlikely(ret != 0))
+               goto err_unreserve;
+
+       virtual = ttm_kmap_obj_virtual(&map, &dummy);
+       ret = vmw_cursor_update_image(dev_priv, virtual, width, height,
+                                     hotspotX, hotspotY);
+
+       ttm_bo_kunmap(&map);
+err_unreserve:
+       ttm_bo_unreserve(&dmabuf->base);
+
+       return ret;
+}
+
+
 void vmw_cursor_update_position(struct vmw_private *dev_priv,
                                bool show, int x, int y)
 {
@@ -146,36 +183,11 @@ int vmw_du_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
                vmw_cursor_update_image(dev_priv, surface->snooper.image,
                                        64, 64, du->hotspot_x, du->hotspot_y);
        } else if (dmabuf) {
-               struct ttm_bo_kmap_obj map;
-               unsigned long kmap_offset;
-               unsigned long kmap_num;
-               void *virtual;
-               bool dummy;
-
                /* vmw_user_surface_lookup takes one reference */
                du->cursor_dmabuf = dmabuf;
 
-               kmap_offset = 0;
-               kmap_num = (64*64*4) >> PAGE_SHIFT;
-
-               ret = ttm_bo_reserve(&dmabuf->base, true, false, false, 0);
-               if (unlikely(ret != 0)) {
-                       DRM_ERROR("reserve failed\n");
-                       return -EINVAL;
-               }
-
-               ret = ttm_bo_kmap(&dmabuf->base, kmap_offset, kmap_num, &map);
-               if (unlikely(ret != 0))
-                       goto err_unreserve;
-
-               virtual = ttm_kmap_obj_virtual(&map, &dummy);
-               vmw_cursor_update_image(dev_priv, virtual, 64, 64,
-                                       du->hotspot_x, du->hotspot_y);
-
-               ttm_bo_kunmap(&map);
-err_unreserve:
-               ttm_bo_unreserve(&dmabuf->base);
-
+               ret = vmw_cursor_update_dmabuf(dev_priv, dmabuf, width, height,
+                                              du->hotspot_x, du->hotspot_y);
        } else {
                vmw_cursor_update_position(dev_priv, false, 0, 0);
                return 0;