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_hide_hw_ptr(struct hv_device *hdev);
50int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
51int hyperv_connect_vsp(struct hv_device *hdev);
52
53#endif
54