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
11struct hyperv_drm_device {
12	/* drm */
13	struct drm_device dev;
14	struct drm_plane plane;
15	struct drm_crtc crtc;
16	struct drm_encoder encoder;
17	struct drm_connector connector;
18
19	/* mode */
20	u32 screen_width_max;
21	u32 screen_height_max;
22	u32 preferred_width;
23	u32 preferred_height;
24	u32 screen_depth;
25
26	/* hw */
27	struct resource *mem;
28	void __iomem *vram;
29	unsigned long fb_base;
30	unsigned long fb_size;
31	struct completion wait;
32	u32 synthvid_version;
33	u32 mmio_megabytes;
34	bool dirt_needed;
35
36	u8 init_buf[VMBUS_MAX_PACKET_SIZE];
37	u8 recv_buf[VMBUS_MAX_PACKET_SIZE];
38
39	struct hv_device *hdev;
40};
41
42#define to_hv(_dev) container_of(_dev, struct hyperv_drm_device, dev)
43
44/* hyperv_drm_modeset */
45int hyperv_mode_config_init(struct hyperv_drm_device *hv);
46
47/* hyperv_drm_proto */
48int hyperv_update_vram_location(struct hv_device *hdev, phys_addr_t vram_pp);
49int hyperv_update_situation(struct hv_device *hdev, u8 active, u32 bpp,
50			    u32 w, u32 h, u32 pitch);
51int hyperv_hide_hw_ptr(struct hv_device *hdev);
52int hyperv_update_dirt(struct hv_device *hdev, struct drm_rect *rect);
53int hyperv_connect_vsp(struct hv_device *hdev);
54
55#endif