drivers/gpu/drm/hyperv/hyperv_drm.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright 2021 Microsoft
   4  */
   5
   6 #ifndef _HYPERV_DRM_H_
   7 #define _HYPERV_DRM_H_
   8
   9 #define VMBUS_MAX_PACKET_SIZE 0x4000
  10
  11 struct hyperv_drm_device {
  12         /* drm */
  13         struct drm_device dev;
  14         struct drm_simple_display_pipe pipe;
  15         struct drm_connector connector;
  16
  17         /* mode */
  18         u32 screen_width_max;
  19         u32 screen_height_max;
  20         u32 preferred_width;
  21         u32 preferred_height;
  22         u32 screen_depth;
  23
  24         /* hw */
  25         struct resource *mem;
  26         void __iomem *vram;
  27         unsigned long fb_base;
  28         unsigned long fb_size;
  29         struct completion wait;
  30         u32 synthvid_version;
  31         u32 mmio_megabytes;
  32         bool dirt_needed;
  33
  34         u8 init_buf[VMBUS_MAX_PACKET_SIZE];
  35         u8 recv_buf[VMBUS_MAX_PACKET_SIZE];
  36
  37         struct hv_device *hdev;
  38 };
  39
  40 #define to_hv(_dev) container_of(_dev, struct hyperv_drm_device, dev)
  41
  42 /* hyperv_drm_modeset */
  43 int hyperv_mode_config_init(struct hyperv_drm_device *hv);
  44
  45 /* hyperv_drm_proto */
  46 int hyperv_update_vram_location(struct hv_device *hdev, phys_addr_t vram_pp);
  47 int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,
  48                             u32 w, u32 h, u32 pitch);
  49 int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
  50 int hyperv_connect_vsp(struct hv_device *hdev);
  51
  52 #endif