drivers/gpu/drm/arm/display/komeda/komeda_framebuffer.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * (C) COPYRIGHT 2018 ARM Limited. All rights reserved.
   4  * Author: James.Qian.Wang <james.qian.wang@arm.com>
   5  *
   6  */
   7 #ifndef _KOMEDA_FRAMEBUFFER_H_
   8 #define _KOMEDA_FRAMEBUFFER_H_
   9
  10 #include <drm/drm_framebuffer.h>
  11 #include "komeda_format_caps.h"
  12
  13 /**
  14  * struct komeda_fb - Entending drm_framebuffer with komeda attribute
  15  */
  16 struct komeda_fb {
  17         /** @base: &drm_framebuffer */
  18         struct drm_framebuffer base;
  19         /**
  20          * @format_caps:
  21          * extends drm_format_info for komeda specific information
  22          */
  23         const struct komeda_format_caps *format_caps;
  24         /** @is_va: if smmu is enabled, it will be true */
  25         bool is_va;
  26         /** @aligned_w: aligned frame buffer width */
  27         u32 aligned_w;
  28         /** @aligned_h: aligned frame buffer height */
  29         u32 aligned_h;
  30         /** @afbc_size: minimum size of afbc */
  31         u32 afbc_size;
  32         /** @offset_payload: start of afbc body buffer */
  33         u32 offset_payload;
  34 };
  35
  36 #define to_kfb(dfb)     container_of(dfb, struct komeda_fb, base)
  37
  38 struct drm_framebuffer *
  39 komeda_fb_create(struct drm_device *dev, struct drm_file *file,
  40                 const struct drm_mode_fb_cmd2 *mode_cmd);
  41 int komeda_fb_check_src_coords(const struct komeda_fb *kfb,
  42                                u32 src_x, u32 src_y, u32 src_w, u32 src_h);
  43 dma_addr_t
  44 komeda_fb_get_pixel_addr(struct komeda_fb *kfb, int x, int y, int plane);
  45 bool komeda_fb_is_layer_supported(struct komeda_fb *kfb, u32 layer_type,
  46                 u32 rot);
  47
  48 #endif