1 | /* SPDX-License-Identifier: MIT */ |
2 | /* |
3 | * Copyright (C) 2013-2017 Oracle Corporation |
4 | * This file is based on ast_drv.h |
5 | * Copyright 2012 Red Hat Inc. |
6 | * Authors: Dave Airlie <airlied@redhat.com> |
7 | * Michael Thayer <michael.thayer@oracle.com, |
8 | * Hans de Goede <hdegoede@redhat.com> |
9 | */ |
10 | #ifndef __VBOX_DRV_H__ |
11 | #define __VBOX_DRV_H__ |
12 | |
13 | #include <linux/genalloc.h> |
14 | #include <linux/io.h> |
15 | #include <linux/irqreturn.h> |
16 | #include <linux/string.h> |
17 | |
18 | #include <drm/drm_encoder.h> |
19 | #include <drm/drm_gem.h> |
20 | #include <drm/drm_gem_vram_helper.h> |
21 | |
22 | #include "vboxvideo_guest.h" |
23 | #include "vboxvideo_vbe.h" |
24 | #include "hgsmi_ch_setup.h" |
25 | |
26 | #define DRIVER_NAME "vboxvideo" |
27 | #define DRIVER_DESC "Oracle VM VirtualBox Graphics Card" |
28 | #define DRIVER_DATE "20130823" |
29 | |
30 | #define DRIVER_MAJOR 1 |
31 | #define DRIVER_MINOR 0 |
32 | #define DRIVER_PATCHLEVEL 0 |
33 | |
34 | #define VBOX_MAX_CURSOR_WIDTH 64 |
35 | #define VBOX_MAX_CURSOR_HEIGHT 64 |
36 | #define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT) |
37 | #define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8) |
38 | |
39 | #define VBOX_MAX_SCREENS 32 |
40 | |
41 | #define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \ |
42 | VBVA_ADAPTER_INFORMATION_SIZE) |
43 | #define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE |
44 | #define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \ |
45 | sizeof(struct hgsmi_host_flags)) |
46 | #define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE |
47 | |
48 | struct vbox_private { |
49 | /* Must be first; or we must define our own release callback */ |
50 | struct drm_device ddev; |
51 | |
52 | u8 __iomem *guest_heap; |
53 | u8 __iomem *vbva_buffers; |
54 | struct gen_pool *guest_pool; |
55 | struct vbva_buf_ctx *vbva_info; |
56 | bool any_pitch; |
57 | u32 num_crtcs; |
58 | /* Amount of available VRAM, including space used for buffers. */ |
59 | u32 full_vram_size; |
60 | /* Amount of available VRAM, not including space used for buffers. */ |
61 | u32 available_vram_size; |
62 | /* Array of structures for receiving mode hints. */ |
63 | struct vbva_modehint *last_mode_hints; |
64 | |
65 | int fb_mtrr; |
66 | |
67 | struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */ |
68 | struct work_struct hotplug_work; |
69 | u32 input_mapping_width; |
70 | u32 input_mapping_height; |
71 | /* |
72 | * Is user-space using an X.Org-style layout of one large frame-buffer |
73 | * encompassing all screen ones or is the fbdev console active? |
74 | */ |
75 | bool single_framebuffer; |
76 | u8 cursor_data[CURSOR_DATA_SIZE]; |
77 | }; |
78 | |
79 | #undef CURSOR_PIXEL_COUNT |
80 | #undef CURSOR_DATA_SIZE |
81 | |
82 | struct vbox_connector { |
83 | struct drm_connector base; |
84 | char name[32]; |
85 | struct vbox_crtc *vbox_crtc; |
86 | struct { |
87 | u32 width; |
88 | u32 height; |
89 | bool disconnected; |
90 | } mode_hint; |
91 | }; |
92 | |
93 | struct vbox_crtc { |
94 | struct drm_crtc base; |
95 | bool disconnected; |
96 | unsigned int crtc_id; |
97 | u32 fb_offset; |
98 | bool cursor_enabled; |
99 | u32 x_hint; |
100 | u32 y_hint; |
101 | /* |
102 | * When setting a mode we not only pass the mode to the hypervisor, |
103 | * but also information on how to map / translate input coordinates |
104 | * for the emulated USB tablet. This input-mapping may change when |
105 | * the mode on *another* crtc changes. |
106 | * |
107 | * This means that sometimes we must do a modeset on other crtc-s then |
108 | * the one being changed to update the input-mapping. Including crtc-s |
109 | * which may be disabled inside the guest (shown as a black window |
110 | * on the host unless closed by the user). |
111 | * |
112 | * With atomic modesetting the mode-info of disabled crtcs gets zeroed |
113 | * yet we need it when updating the input-map to avoid resizing the |
114 | * window as a side effect of a mode_set on another crtc. Therefor we |
115 | * cache the info of the last mode below. |
116 | */ |
117 | u32 width; |
118 | u32 height; |
119 | u32 x; |
120 | u32 y; |
121 | }; |
122 | |
123 | struct vbox_encoder { |
124 | struct drm_encoder base; |
125 | }; |
126 | |
127 | #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base) |
128 | #define to_vbox_connector(x) container_of(x, struct vbox_connector, base) |
129 | #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base) |
130 | #define to_vbox_dev(x) container_of(x, struct vbox_private, ddev) |
131 | |
132 | bool vbox_check_supported(u16 id); |
133 | int vbox_hw_init(struct vbox_private *vbox); |
134 | void vbox_hw_fini(struct vbox_private *vbox); |
135 | |
136 | int vbox_mode_init(struct vbox_private *vbox); |
137 | void vbox_mode_fini(struct vbox_private *vbox); |
138 | |
139 | void vbox_report_caps(struct vbox_private *vbox); |
140 | |
141 | int vbox_mm_init(struct vbox_private *vbox); |
142 | |
143 | /* vbox_irq.c */ |
144 | int vbox_irq_init(struct vbox_private *vbox); |
145 | void vbox_irq_fini(struct vbox_private *vbox); |
146 | void vbox_report_hotplug(struct vbox_private *vbox); |
147 | |
148 | /* vbox_hgsmi.c */ |
149 | void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size, |
150 | u8 channel, u16 channel_info); |
151 | void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf); |
152 | int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf); |
153 | |
154 | static inline void vbox_write_ioport(u16 index, u16 data) |
155 | { |
156 | outw(value: index, VBE_DISPI_IOPORT_INDEX); |
157 | outw(value: data, VBE_DISPI_IOPORT_DATA); |
158 | } |
159 | |
160 | #endif |
161 | |