linux/drivers/gpu/drm/hyperv/hyperv_drm.h
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   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
  11struct 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 */
  43int hyperv_mode_config_init(struct hyperv_drm_device *hv);
  44
  45/* hyperv_drm_proto */
  46int hyperv_update_vram_location(struct hv_device *hdev, phys_addr_t vram_pp);
  47int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,
  48                            u32 w, u32 h, u32 pitch);
  49int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
  50int hyperv_connect_vsp(struct hv_device *hdev);
  51
  52#endif
  53