VirtualBox

source: vbox/trunk/src/VBox/Additions/linux/drm/vbox_drv.h@ 68308

Last change on this file since 68308 was 68297, checked in by vboxsync, 7 years ago

Additions/linux/drm: support custom EL7 Linux 3.10 kernel
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File size: 9.8 KB
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1/* $Id: vbox_drv.h 68297 2017-08-04 10:25:39Z vboxsync $ */
2/** @file
3 * VirtualBox Additions Linux kernel video driver
4 */
5
6/*
7 * Copyright (C) 2013-2017 Oracle Corporation
8 * This file is based on ast_drv.h
9 * Copyright 2012 Red Hat Inc.
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the
13 * "Software"), to deal in the Software without restriction, including
14 * without limitation the rights to use, copy, modify, merge, publish,
15 * distribute, sub license, and/or sell copies of the Software, and to
16 * permit persons to whom the Software is furnished to do so, subject to
17 * the following conditions:
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
22 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
23 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
24 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
25 * USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 * The above copyright notice and this permission notice (including the
28 * next paragraph) shall be included in all copies or substantial portions
29 * of the Software.
30 *
31 * Authors: Dave Airlie <[email protected]>
32 * Michael Thayer <[email protected],
33 * Hans de Goede <[email protected]>
34 */
35#ifndef __VBOX_DRV_H__
36#define __VBOX_DRV_H__
37
38#define LOG_GROUP LOG_GROUP_DEV_VGA
39
40#include <VBoxVideoGuest.h>
41
42#include <drm/drmP.h>
43#include <drm/drm_fb_helper.h>
44
45#include <drm/ttm/ttm_bo_api.h>
46#include <drm/ttm/ttm_bo_driver.h>
47#include <drm/ttm/ttm_placement.h>
48#include <drm/ttm/ttm_memory.h>
49#include <drm/ttm/ttm_module.h>
50
51#if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
52# if RHEL_MAJOR == 7 && RHEL_MINOR >= 3
53# define RHEL_7
54# endif
55#endif
56
57#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0) || defined(RHEL_7)
58#include <drm/drm_gem.h>
59#endif
60#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
61#include <drm/drm_encoder.h>
62#endif
63
64#include "product-generated.h"
65
66#define DRIVER_AUTHOR VBOX_VENDOR
67
68#define DRIVER_NAME "vboxvideo"
69#define DRIVER_DESC VBOX_PRODUCT " Graphics Card"
70#define DRIVER_DATE "20130823"
71
72#define DRIVER_MAJOR 1
73#define DRIVER_MINOR 0
74#define DRIVER_PATCHLEVEL 0
75
76#define VBOX_MAX_CURSOR_WIDTH 64
77#define VBOX_MAX_CURSOR_HEIGHT 64
78#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
79#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
80
81#define VBOX_MAX_SCREENS 32
82
83#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
84 VBVA_ADAPTER_INFORMATION_SIZE)
85#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
86#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
87 sizeof(HGSMIHOSTFLAGS))
88#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
89
90struct vbox_fbdev;
91
92struct vbox_private {
93 struct drm_device *dev;
94
95 u8 __iomem *guest_heap;
96 u8 __iomem *vbva_buffers;
97 struct gen_pool *guest_pool;
98 struct VBVABUFFERCONTEXT *vbva_info;
99 bool any_pitch;
100 unsigned int num_crtcs;
101 /** Amount of available VRAM, including space used for buffers. */
102 u32 full_vram_size;
103 /** Amount of available VRAM, not including space used for buffers. */
104 u32 available_vram_size;
105 /** Array of structures for receiving mode hints. */
106 VBVAMODEHINT *last_mode_hints;
107
108 struct vbox_fbdev *fbdev;
109
110 int fb_mtrr;
111
112 struct {
113 struct drm_global_reference mem_global_ref;
114 struct ttm_bo_global_ref bo_global_ref;
115 struct ttm_bo_device bdev;
116 bool mm_initialised;
117 } ttm;
118
119 struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
120 bool isr_installed;
121 /**
122 * We decide whether or not user-space supports display hot-plug
123 * depending on whether they react to a hot-plug event after the initial
124 * mode query.
125 */
126 bool initial_mode_queried;
127 struct work_struct hotplug_work;
128 u32 input_mapping_width;
129 u32 input_mapping_height;
130 /**
131 * Is user-space using an X.Org-style layout of one large frame-buffer
132 * encompassing all screen ones or is the fbdev console active?
133 */
134 bool single_framebuffer;
135 u32 cursor_width;
136 u32 cursor_height;
137 u32 cursor_hot_x;
138 u32 cursor_hot_y;
139 size_t cursor_data_size;
140 u8 cursor_data[CURSOR_DATA_SIZE];
141};
142
143#undef CURSOR_PIXEL_COUNT
144#undef CURSOR_DATA_SIZE
145
146int vbox_driver_load(struct drm_device *dev, unsigned long flags);
147#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
148void vbox_driver_unload(struct drm_device *dev);
149#else
150int vbox_driver_unload(struct drm_device *dev);
151#endif
152void vbox_driver_lastclose(struct drm_device *dev);
153
154struct vbox_gem_object;
155
156#ifndef VGA_PORT_HGSMI_HOST
157#define VGA_PORT_HGSMI_HOST 0x3b0
158#define VGA_PORT_HGSMI_GUEST 0x3d0
159#endif
160
161struct vbox_connector {
162 struct drm_connector base;
163 char name[32];
164 struct vbox_crtc *vbox_crtc;
165 struct {
166 u16 width;
167 u16 height;
168 bool disconnected;
169 } mode_hint;
170};
171
172struct vbox_crtc {
173 struct drm_crtc base;
174 bool blanked;
175 bool disconnected;
176 unsigned int crtc_id;
177 u32 fb_offset;
178 bool cursor_enabled;
179 u16 x_hint;
180 u16 y_hint;
181};
182
183struct vbox_encoder {
184 struct drm_encoder base;
185};
186
187struct vbox_framebuffer {
188 struct drm_framebuffer base;
189 struct drm_gem_object *obj;
190};
191
192struct vbox_fbdev {
193 struct drm_fb_helper helper;
194 struct vbox_framebuffer afb;
195 int size;
196 struct ttm_bo_kmap_obj mapping;
197 int x1, y1, x2, y2; /* dirty rect */
198 spinlock_t dirty_lock;
199};
200
201#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
202#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
203#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
204#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
205
206int vbox_mode_init(struct drm_device *dev);
207void vbox_mode_fini(struct drm_device *dev);
208
209#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
210#define DRM_MODE_FB_CMD drm_mode_fb_cmd
211#else
212#define DRM_MODE_FB_CMD drm_mode_fb_cmd2
213#endif
214
215#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0) && !defined(RHEL_7)
216#define CRTC_FB(crtc) ((crtc)->fb)
217#else
218#define CRTC_FB(crtc) ((crtc)->primary->fb)
219#endif
220
221void vbox_enable_accel(struct vbox_private *vbox);
222void vbox_disable_accel(struct vbox_private *vbox);
223void vbox_report_caps(struct vbox_private *vbox);
224
225void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
226 struct drm_clip_rect *rects,
227 unsigned int num_rects);
228
229int vbox_framebuffer_init(struct drm_device *dev,
230 struct vbox_framebuffer *vbox_fb,
231#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0) || defined(RHEL_7)
232 const
233#endif
234 struct DRM_MODE_FB_CMD *mode_cmd,
235 struct drm_gem_object *obj);
236
237int vbox_fbdev_init(struct drm_device *dev);
238void vbox_fbdev_fini(struct drm_device *dev);
239void vbox_fbdev_set_suspend(struct drm_device *dev, int state);
240void vbox_fbdev_set_base(struct vbox_private *vbox, unsigned long gpu_addr);
241
242struct vbox_bo {
243 struct ttm_buffer_object bo;
244 struct ttm_placement placement;
245 struct ttm_bo_kmap_obj kmap;
246 struct drm_gem_object gem;
247#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(RHEL_7)
248 u32 placements[3];
249#else
250 struct ttm_place placements[3];
251#endif
252 int pin_count;
253};
254
255#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
256
257static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
258{
259 return container_of(bo, struct vbox_bo, bo);
260}
261
262#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
263
264int vbox_dumb_create(struct drm_file *file,
265 struct drm_device *dev,
266 struct drm_mode_create_dumb *args);
267#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && !defined(RHEL_7)
268int vbox_dumb_destroy(struct drm_file *file,
269 struct drm_device *dev, u32 handle);
270#endif
271
272void vbox_gem_free_object(struct drm_gem_object *obj);
273int vbox_dumb_mmap_offset(struct drm_file *file,
274 struct drm_device *dev,
275 u32 handle, u64 *offset);
276
277#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT)
278
279int vbox_mm_init(struct vbox_private *vbox);
280void vbox_mm_fini(struct vbox_private *vbox);
281
282int vbox_bo_create(struct drm_device *dev, int size, int align,
283 u32 flags, struct vbox_bo **pvboxbo);
284
285int vbox_gem_create(struct drm_device *dev,
286 u32 size, bool iskernel, struct drm_gem_object **obj);
287
288int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr);
289int vbox_bo_unpin(struct vbox_bo *bo);
290
291static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
292{
293 int ret;
294
295#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0)
296 ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
297#else
298 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
299#endif
300 if (ret) {
301 if (ret != -ERESTARTSYS && ret != -EBUSY)
302 DRM_ERROR("reserve failed %p\n", bo);
303 return ret;
304 }
305 return 0;
306}
307
308static inline void vbox_bo_unreserve(struct vbox_bo *bo)
309{
310 ttm_bo_unreserve(&bo->bo);
311}
312
313void vbox_ttm_placement(struct vbox_bo *bo, int domain);
314int vbox_bo_push_sysram(struct vbox_bo *bo);
315int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
316
317/* vbox_prime.c */
318int vbox_gem_prime_pin(struct drm_gem_object *obj);
319void vbox_gem_prime_unpin(struct drm_gem_object *obj);
320struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
321struct drm_gem_object *vbox_gem_prime_import_sg_table(struct drm_device *dev,
322#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(RHEL_7)
323 size_t size,
324#else
325 struct dma_buf_attachment
326 *attach,
327#endif
328 struct sg_table *table);
329void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
330void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
331int vbox_gem_prime_mmap(struct drm_gem_object *obj,
332 struct vm_area_struct *area);
333
334/* vbox_irq.c */
335int vbox_irq_init(struct vbox_private *vbox);
336void vbox_irq_fini(struct vbox_private *vbox);
337void vbox_report_hotplug(struct vbox_private *vbox);
338irqreturn_t vbox_irq_handler(int irq, void *arg);
339
340#endif
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