LXR linux/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/* Hisilicon Hibmc SoC drm driver
   3 *
   4 * Based on the bochs drm driver.
   5 *
   6 * Copyright (c) 2016 Huawei Limited.
   7 *
   8 * Author:
   9 *      Rongrong Zou <zourongrong@huawei.com>
  10 *      Rongrong Zou <zourongrong@gmail.com>
  11 *      Jianhua Li <lijianhua@huawei.com>
  12 */
  13
  14#ifndef HIBMC_DRM_DRV_H
  15#define HIBMC_DRM_DRV_H
  16
  17#include <drm/drmP.h>
  18#include <drm/drm_atomic.h>
  19#include <drm/drm_fb_helper.h>
  20#include <drm/drm_gem.h>
  21#include <drm/drm_gem_vram_helper.h>
  22#include <drm/drm_vram_mm_helper.h>
  23
  24struct hibmc_framebuffer {
  25        struct drm_framebuffer fb;
  26        struct drm_gem_object *obj;
  27};
  28
  29struct hibmc_fbdev {
  30        struct drm_fb_helper helper; /* must be first */
  31        struct hibmc_framebuffer *fb;
  32        int size;
  33};
  34
  35struct hibmc_drm_private {
  36        /* hw */
  37        void __iomem   *mmio;
  38        void __iomem   *fb_map;
  39        unsigned long  fb_base;
  40        unsigned long  fb_size;
  41        bool msi_enabled;
  42
  43        /* drm */
  44        struct drm_device  *dev;
  45        bool mode_config_initialized;
  46
  47        /* fbdev */
  48        struct hibmc_fbdev *fbdev;
  49};
  50
  51#define to_hibmc_framebuffer(x) container_of(x, struct hibmc_framebuffer, fb)
  52
  53void hibmc_set_power_mode(struct hibmc_drm_private *priv,
  54                          unsigned int power_mode);
  55void hibmc_set_current_gate(struct hibmc_drm_private *priv,
  56                            unsigned int gate);
  57
  58int hibmc_de_init(struct hibmc_drm_private *priv);
  59int hibmc_vdac_init(struct hibmc_drm_private *priv);
  60int hibmc_fbdev_init(struct hibmc_drm_private *priv);
  61void hibmc_fbdev_fini(struct hibmc_drm_private *priv);
  62
  63int hibmc_gem_create(struct drm_device *dev, u32 size, bool iskernel,
  64                     struct drm_gem_object **obj);
  65struct hibmc_framebuffer *
  66hibmc_framebuffer_init(struct drm_device *dev,
  67                       const struct drm_mode_fb_cmd2 *mode_cmd,
  68                       struct drm_gem_object *obj);
  69
  70int hibmc_mm_init(struct hibmc_drm_private *hibmc);
  71void hibmc_mm_fini(struct hibmc_drm_private *hibmc);
  72int hibmc_dumb_create(struct drm_file *file, struct drm_device *dev,
  73                      struct drm_mode_create_dumb *args);
  74
  75extern const struct drm_mode_config_funcs hibmc_mode_funcs;
  76
  77#endif
  78