1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __DRM_FB_DMA_HELPER_H__ 3 #define __DRM_FB_DMA_HELPER_H__ 4 5 #include <linux/types.h> 6 7 struct drm_device; 8 struct drm_framebuffer; 9 struct drm_plane; 10 struct drm_plane_state; 11 struct drm_scanout_buffer; 12 13 struct drm_gem_dma_object *drm_fb_dma_get_gem_obj(struct drm_framebuffer *fb, 14 unsigned int plane); 15 16 dma_addr_t drm_fb_dma_get_gem_addr(struct drm_framebuffer *fb, 17 struct drm_plane_state *state, 18 unsigned int plane); 19 20 void drm_fb_dma_sync_non_coherent(struct drm_device *drm, 21 struct drm_plane_state *old_state, 22 struct drm_plane_state *state); 23 24 int drm_fb_dma_get_scanout_buffer(struct drm_plane *plane, 25 struct drm_scanout_buffer *sb); 26 27 #endif 28 29