VirtualBox

source: vbox/trunk/src/VBox/Additions/linux/drm/vbox_drv.h@ 76553

最後變更 在這個檔案從76553是 76553,由 vboxsync 提交於 6 年 前

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1/* $Id: vbox_drv.h 76553 2019-01-01 01:45:53Z vboxsync $ */
2/** @file
3 * VirtualBox Additions Linux kernel video driver
4 */
5
6/*
7 * Copyright (C) 2013-2019 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
36#ifndef __VBOX_DRV_H__
37#define __VBOX_DRV_H__
38#ifndef RT_WITHOUT_PRAGMA_ONCE
39# pragma once
40#endif
41
42#include <linux/version.h>
43#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
44# include <linux/types.h>
45# include <linux/spinlock_types.h>
46#endif
47
48#include <linux/genalloc.h>
49#include <linux/io.h>
50#include <linux/string.h>
51
52#if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
53# if RHEL_MAJOR == 7 && RHEL_MINOR >= 6
54# define RHEL_76
55# endif
56# if RHEL_MAJOR == 7 && RHEL_MINOR >= 5
57# define RHEL_75
58# endif
59# if RHEL_MAJOR == 7 && RHEL_MINOR >= 4
60# define RHEL_74
61# endif
62# if RHEL_MAJOR == 7 && RHEL_MINOR >= 3
63# define RHEL_73
64# endif
65# if RHEL_MAJOR == 7 && RHEL_MINOR >= 2
66# define RHEL_72
67# endif
68# if RHEL_MAJOR == 7 && RHEL_MINOR >= 1
69# define RHEL_71
70# endif
71# if RHEL_MAJOR == 7 && RHEL_MINOR >= 0
72# define RHEL_70
73# endif
74#endif
75
76#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 14, 0) || defined(RHEL_71)
77#define U8_MAX ((u8)~0U)
78#define S8_MAX ((s8)(U8_MAX>>1))
79#define S8_MIN ((s8)(-S8_MAX - 1))
80#define U16_MAX ((u16)~0U)
81#define S16_MAX ((s16)(U16_MAX>>1))
82#define S16_MIN ((s16)(-S16_MAX - 1))
83#define U32_MAX ((u32)~0U)
84#define S32_MAX ((s32)(U32_MAX>>1))
85#define S32_MIN ((s32)(-S32_MAX - 1))
86#define U64_MAX ((u64)~0ULL)
87#define S64_MAX ((s64)(U64_MAX>>1))
88#define S64_MIN ((s64)(-S64_MAX - 1))
89#endif
90
91#include <drm/drmP.h>
92#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0) || defined(RHEL_75)
93#include <drm/drm_encoder.h>
94#endif
95#include <drm/drm_fb_helper.h>
96#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0) || defined(RHEL_72)
97#include <drm/drm_gem.h>
98#endif
99
100#include <drm/ttm/ttm_bo_api.h>
101#include <drm/ttm/ttm_bo_driver.h>
102#include <drm/ttm/ttm_placement.h>
103#include <drm/ttm/ttm_memory.h>
104#include <drm/ttm/ttm_module.h>
105
106#include "vboxvideo_guest.h"
107#include "vboxvideo_vbe.h"
108#include "hgsmi_ch_setup.h"
109
110#include "product-generated.h"
111
112#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 12, 0) && !defined(RHEL_75)
113static inline void drm_gem_object_put_unlocked(struct drm_gem_object *obj)
114{
115 drm_gem_object_unreference_unlocked(obj);
116}
117#endif
118
119#define DRIVER_AUTHOR VBOX_VENDOR
120
121#define DRIVER_NAME "vboxvideo"
122#define DRIVER_DESC VBOX_PRODUCT " Graphics Card"
123#define DRIVER_DATE "20130823"
124
125#define DRIVER_MAJOR 1
126#define DRIVER_MINOR 0
127#define DRIVER_PATCHLEVEL 0
128
129#define VBOX_MAX_CURSOR_WIDTH 64
130#define VBOX_MAX_CURSOR_HEIGHT 64
131#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
132#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
133
134#define VBOX_MAX_SCREENS 32
135
136#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
137 VBVA_ADAPTER_INFORMATION_SIZE)
138#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
139#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
140 sizeof(HGSMIHOSTFLAGS))
141#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
142
143/** How frequently we refresh if the guest is not providing dirty rectangles. */
144#define VBOX_REFRESH_PERIOD (HZ / 2)
145
146#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 13, 0) && !defined(RHEL_72)
147static inline void *devm_kcalloc(struct device *dev, size_t n, size_t size,
148 gfp_t flags)
149{
150 return devm_kzalloc(dev, n * size, flags);
151}
152#endif
153
154struct vbox_fbdev;
155
156struct vbox_private {
157 struct drm_device *dev;
158
159 u8 __iomem *guest_heap;
160 u8 __iomem *vbva_buffers;
161 struct gen_pool *guest_pool;
162 struct VBVABUFFERCONTEXT *vbva_info;
163 bool any_pitch;
164 u32 num_crtcs;
165 /** Amount of available VRAM, including space used for buffers. */
166 u32 full_vram_size;
167 /** Amount of available VRAM, not including space used for buffers. */
168 u32 available_vram_size;
169 /** Array of structures for receiving mode hints. */
170 VBVAMODEHINT *last_mode_hints;
171
172 struct vbox_fbdev *fbdev;
173
174 int fb_mtrr;
175
176 struct {
177 struct drm_global_reference mem_global_ref;
178 struct ttm_bo_global_ref bo_global_ref;
179 struct ttm_bo_device bdev;
180 bool mm_initialised;
181 } ttm;
182
183 struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
184 /**
185 * We decide whether or not user-space supports display hot-plug
186 * depending on whether they react to a hot-plug event after the initial
187 * mode query.
188 */
189 bool initial_mode_queried;
190 /**
191 * Do we know that the current user can send us dirty rectangle information?
192 * If not, do periodic refreshes until we do know.
193 */
194 bool need_refresh_timer;
195 /**
196 * As long as the user is not sending us dirty rectangle information,
197 * refresh the whole screen at regular intervals.
198 */
199 struct delayed_work refresh_work;
200 struct work_struct hotplug_work;
201 u32 input_mapping_width;
202 u32 input_mapping_height;
203 /**
204 * Is user-space using an X.Org-style layout of one large frame-buffer
205 * encompassing all screen ones or is the fbdev console active?
206 */
207 bool single_framebuffer;
208 u32 cursor_width;
209 u32 cursor_height;
210 u32 cursor_hot_x;
211 u32 cursor_hot_y;
212 size_t cursor_data_size;
213 u8 cursor_data[CURSOR_DATA_SIZE];
214};
215
216#undef CURSOR_PIXEL_COUNT
217#undef CURSOR_DATA_SIZE
218
219int vbox_driver_load(struct drm_device *dev, unsigned long flags);
220#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0) || defined(RHEL_75)
221void vbox_driver_unload(struct drm_device *dev);
222#else
223int vbox_driver_unload(struct drm_device *dev);
224#endif
225void vbox_driver_lastclose(struct drm_device *dev);
226
227struct vbox_gem_object;
228
229#ifndef VGA_PORT_HGSMI_HOST
230#define VGA_PORT_HGSMI_HOST 0x3b0
231#define VGA_PORT_HGSMI_GUEST 0x3d0
232#endif
233
234struct vbox_connector {
235 struct drm_connector base;
236 char name[32];
237 struct vbox_crtc *vbox_crtc;
238 struct {
239 u16 width;
240 u16 height;
241 bool disconnected;
242 } mode_hint;
243};
244
245struct vbox_crtc {
246 struct drm_crtc base;
247 bool blanked;
248 bool disconnected;
249 unsigned int crtc_id;
250 u32 fb_offset;
251 bool cursor_enabled;
252 u32 x_hint;
253 u32 y_hint;
254};
255
256struct vbox_encoder {
257 struct drm_encoder base;
258};
259
260struct vbox_framebuffer {
261 struct drm_framebuffer base;
262 struct drm_gem_object *obj;
263};
264
265struct vbox_fbdev {
266 struct drm_fb_helper helper;
267 struct vbox_framebuffer afb;
268 int size;
269 struct ttm_bo_kmap_obj mapping;
270 int x1, y1, x2, y2; /* dirty rect */
271 spinlock_t dirty_lock;
272};
273
274#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
275#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
276#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
277#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
278
279int vbox_mode_init(struct drm_device *dev);
280void vbox_mode_fini(struct drm_device *dev);
281
282#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
283#define DRM_MODE_FB_CMD drm_mode_fb_cmd
284#else
285#define DRM_MODE_FB_CMD drm_mode_fb_cmd2
286#endif
287
288#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0) && !defined(RHEL_71)
289#define CRTC_FB(crtc) ((crtc)->fb)
290#else
291#define CRTC_FB(crtc) ((crtc)->primary->fb)
292#endif
293
294void vbox_enable_accel(struct vbox_private *vbox);
295void vbox_disable_accel(struct vbox_private *vbox);
296void vbox_report_caps(struct vbox_private *vbox);
297
298void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
299 struct drm_clip_rect *rects,
300 unsigned int num_rects);
301
302int vbox_framebuffer_init(struct drm_device *dev,
303 struct vbox_framebuffer *vbox_fb,
304#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0) || defined(RHEL_73)
305 const struct DRM_MODE_FB_CMD *mode_cmd,
306#else
307 struct DRM_MODE_FB_CMD *mode_cmd,
308#endif
309 struct drm_gem_object *obj);
310
311int vbox_fbdev_init(struct drm_device *dev);
312void vbox_fbdev_fini(struct drm_device *dev);
313void vbox_fbdev_set_base(struct vbox_private *vbox, unsigned long gpu_addr);
314
315struct vbox_bo {
316 struct ttm_buffer_object bo;
317 struct ttm_placement placement;
318 struct ttm_bo_kmap_obj kmap;
319 struct drm_gem_object gem;
320#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(RHEL_72)
321 u32 placements[3];
322#else
323 struct ttm_place placements[3];
324#endif
325 int pin_count;
326};
327
328#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
329
330static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
331{
332 return container_of(bo, struct vbox_bo, bo);
333}
334
335#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
336
337int vbox_dumb_create(struct drm_file *file,
338 struct drm_device *dev,
339 struct drm_mode_create_dumb *args);
340#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && !defined(RHEL_73)
341int vbox_dumb_destroy(struct drm_file *file,
342 struct drm_device *dev, u32 handle);
343#endif
344
345void vbox_gem_free_object(struct drm_gem_object *obj);
346int vbox_dumb_mmap_offset(struct drm_file *file,
347 struct drm_device *dev,
348 u32 handle, u64 *offset);
349
350#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT)
351
352int vbox_mm_init(struct vbox_private *vbox);
353void vbox_mm_fini(struct vbox_private *vbox);
354
355int vbox_bo_create(struct drm_device *dev, int size, int align,
356 u32 flags, struct vbox_bo **pvboxbo);
357
358int vbox_gem_create(struct drm_device *dev,
359 u32 size, bool iskernel, struct drm_gem_object **obj);
360
361int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr);
362int vbox_bo_unpin(struct vbox_bo *bo);
363
364static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
365{
366 int ret;
367
368#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) || defined(RHEL_74)
369 ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
370#else
371 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
372#endif
373 if (ret) {
374 if (ret != -ERESTARTSYS && ret != -EBUSY)
375 DRM_ERROR("reserve failed %p\n", bo);
376 return ret;
377 }
378 return 0;
379}
380
381static inline void vbox_bo_unreserve(struct vbox_bo *bo)
382{
383 ttm_bo_unreserve(&bo->bo);
384}
385
386void vbox_ttm_placement(struct vbox_bo *bo, int domain);
387int vbox_bo_push_sysram(struct vbox_bo *bo);
388int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
389
390/* vbox_prime.c */
391int vbox_gem_prime_pin(struct drm_gem_object *obj);
392void vbox_gem_prime_unpin(struct drm_gem_object *obj);
393struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
394#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(RHEL_72)
395struct drm_gem_object *vbox_gem_prime_import_sg_table(
396 struct drm_device *dev, size_t size, struct sg_table *table);
397#else
398struct drm_gem_object *vbox_gem_prime_import_sg_table(
399 struct drm_device *dev, struct dma_buf_attachment *attach,
400 struct sg_table *table);
401#endif
402void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
403void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
404int vbox_gem_prime_mmap(struct drm_gem_object *obj,
405 struct vm_area_struct *area);
406
407/* vbox_irq.c */
408int vbox_irq_init(struct vbox_private *vbox);
409void vbox_irq_fini(struct vbox_private *vbox);
410void vbox_report_hotplug(struct vbox_private *vbox);
411irqreturn_t vbox_irq_handler(int irq, void *arg);
412
413/* vbox_hgsmi.c */
414void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
415 u8 channel, u16 channel_info);
416void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
417int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
418
419static inline void vbox_write_ioport(u16 index, u16 data)
420{
421 outw(index, VBE_DISPI_IOPORT_INDEX);
422 outw(data, VBE_DISPI_IOPORT_DATA);
423}
424
425#endif
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