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path: root/drivers/gpu/drm/ast/ast_drv.h
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Diffstat (limited to 'drivers/gpu/drm/ast/ast_drv.h')
-rw-r--r--drivers/gpu/drm/ast/ast_drv.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 5ccf984f063..528429252f0 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -98,6 +98,8 @@ struct ast_private {
struct drm_gem_object *cursor_cache;
uint64_t cursor_cache_gpu_addr;
+ /* Acces to this cache is protected by the crtc->mutex of the only crtc
+ * we have. */
struct ttm_bo_kmap_obj cache_kmap;
int next_cursor;
};