VirtualBox

source: vbox/trunk/src/VBox/Additions/linux/drm/vbox_drv.h@ 69922

Last change on this file since 69922 was 69748, checked in by vboxsync, 7 years ago

Additions/linux/drm: set up fbdev fix information correctly.
bugref:4567: Linux kernel driver maintenance

For historical reasons we were setting up the fbdev fix information
completely wrongly, and too late to boot. I discovered this when we started
having occasional oopses at boot, and hope that I fixed both problems in this
change.
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 10.5 KB
Line 
1/* $Id: vbox_drv.h 69748 2017-11-18 20:56:56Z 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 <airlied@redhat.com>
32 * Michael Thayer <michael.thayer@oracle.com,
33 * Hans de Goede <hdegoede@redhat.com>
34 */
35#ifndef __VBOX_DRV_H__
36#define __VBOX_DRV_H__
37
38#define LOG_GROUP LOG_GROUP_DEV_VGA
39
40#include <linux/version.h>
41
42#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)
43# include <linux/types.h>
44# include <linux/spinlock_types.h>
45#endif
46
47#include <linux/genalloc.h>
48#include <linux/io.h>
49#include <linux/string.h>
50
51#if defined(RHEL_MAJOR) && defined(RHEL_MINOR)
52# if RHEL_MAJOR == 7 && RHEL_MINOR >= 4
53# define RHEL_73
54# define RHEL_74
55# elif RHEL_MAJOR == 7 && RHEL_MINOR >= 3
56# define RHEL_73
57# endif
58#endif
59
60#include <drm/drmP.h>
61#if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 0) || defined(RHEL_73)
62#include <drm/drm_gem.h>
63#endif
64#include <drm/drm_fb_helper.h>
65#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
66#include <drm/drm_encoder.h>
67#endif
68
69#include <drm/ttm/ttm_bo_api.h>
70#include <drm/ttm/ttm_bo_driver.h>
71#include <drm/ttm/ttm_placement.h>
72#include <drm/ttm/ttm_memory.h>
73#include <drm/ttm/ttm_module.h>
74
75#include "vboxvideo_guest.h"
76#include "vboxvideo_vbe.h"
77#include "hgsmi_ch_setup.h"
78
79#include "product-generated.h"
80
81#define DRIVER_AUTHOR VBOX_VENDOR
82
83#define DRIVER_NAME "vboxvideo"
84#define DRIVER_DESC VBOX_PRODUCT " Graphics Card"
85#define DRIVER_DATE "20130823"
86
87#define DRIVER_MAJOR 1
88#define DRIVER_MINOR 0
89#define DRIVER_PATCHLEVEL 0
90
91#define VBOX_MAX_CURSOR_WIDTH 64
92#define VBOX_MAX_CURSOR_HEIGHT 64
93#define CURSOR_PIXEL_COUNT (VBOX_MAX_CURSOR_WIDTH * VBOX_MAX_CURSOR_HEIGHT)
94#define CURSOR_DATA_SIZE (CURSOR_PIXEL_COUNT * 4 + CURSOR_PIXEL_COUNT / 8)
95
96#define VBOX_MAX_SCREENS 32
97
98#define GUEST_HEAP_OFFSET(vbox) ((vbox)->full_vram_size - \
99 VBVA_ADAPTER_INFORMATION_SIZE)
100#define GUEST_HEAP_SIZE VBVA_ADAPTER_INFORMATION_SIZE
101#define GUEST_HEAP_USABLE_SIZE (VBVA_ADAPTER_INFORMATION_SIZE - \
102 sizeof(HGSMIHOSTFLAGS))
103#define HOST_FLAGS_OFFSET GUEST_HEAP_USABLE_SIZE
104
105struct vbox_fbdev;
106
107struct vbox_private {
108 struct drm_device *dev;
109
110 u8 __iomem *guest_heap;
111 u8 __iomem *vbva_buffers;
112 struct gen_pool *guest_pool;
113 struct VBVABUFFERCONTEXT *vbva_info;
114 bool any_pitch;
115 unsigned int num_crtcs;
116 /** Amount of available VRAM, including space used for buffers. */
117 u32 full_vram_size;
118 /** Amount of available VRAM, not including space used for buffers. */
119 u32 available_vram_size;
120 /** Array of structures for receiving mode hints. */
121 VBVAMODEHINT *last_mode_hints;
122
123 struct vbox_fbdev *fbdev;
124
125 int fb_mtrr;
126
127 struct {
128 struct drm_global_reference mem_global_ref;
129 struct ttm_bo_global_ref bo_global_ref;
130 struct ttm_bo_device bdev;
131 bool mm_initialised;
132 } ttm;
133
134 struct mutex hw_mutex; /* protects modeset and accel/vbva accesses */
135 bool isr_installed;
136 /**
137 * We decide whether or not user-space supports display hot-plug
138 * depending on whether they react to a hot-plug event after the initial
139 * mode query.
140 */
141 bool initial_mode_queried;
142 struct work_struct hotplug_work;
143 u32 input_mapping_width;
144 u32 input_mapping_height;
145 /**
146 * Is user-space using an X.Org-style layout of one large frame-buffer
147 * encompassing all screen ones or is the fbdev console active?
148 */
149 bool single_framebuffer;
150 u32 cursor_width;
151 u32 cursor_height;
152 u32 cursor_hot_x;
153 u32 cursor_hot_y;
154 size_t cursor_data_size;
155 u8 cursor_data[CURSOR_DATA_SIZE];
156};
157
158#undef CURSOR_PIXEL_COUNT
159#undef CURSOR_DATA_SIZE
160
161int vbox_driver_load(struct drm_device *dev, unsigned long flags);
162#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
163void vbox_driver_unload(struct drm_device *dev);
164#else
165int vbox_driver_unload(struct drm_device *dev);
166#endif
167void vbox_driver_lastclose(struct drm_device *dev);
168
169struct vbox_gem_object;
170
171#ifndef VGA_PORT_HGSMI_HOST
172#define VGA_PORT_HGSMI_HOST 0x3b0
173#define VGA_PORT_HGSMI_GUEST 0x3d0
174#endif
175
176struct vbox_connector {
177 struct drm_connector base;
178 char name[32];
179 struct vbox_crtc *vbox_crtc;
180 struct {
181 u32 width;
182 u32 height;
183 bool disconnected;
184 } mode_hint;
185};
186
187struct vbox_crtc {
188 struct drm_crtc base;
189 bool blanked;
190 bool disconnected;
191 unsigned int crtc_id;
192 u32 fb_offset;
193 bool cursor_enabled;
194 u32 x_hint;
195 u32 y_hint;
196};
197
198struct vbox_encoder {
199 struct drm_encoder base;
200};
201
202struct vbox_framebuffer {
203 struct drm_framebuffer base;
204 struct drm_gem_object *obj;
205};
206
207struct vbox_fbdev {
208 struct drm_fb_helper helper;
209 struct vbox_framebuffer afb;
210 int size;
211 struct ttm_bo_kmap_obj mapping;
212 int x1, y1, x2, y2; /* dirty rect */
213 spinlock_t dirty_lock;
214};
215
216#define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
217#define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
218#define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
219#define to_vbox_framebuffer(x) container_of(x, struct vbox_framebuffer, base)
220
221int vbox_mode_init(struct drm_device *dev);
222void vbox_mode_fini(struct drm_device *dev);
223
224#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
225#define DRM_MODE_FB_CMD drm_mode_fb_cmd
226#else
227#define DRM_MODE_FB_CMD drm_mode_fb_cmd2
228#endif
229
230#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 15, 0) && !defined(RHEL_73)
231#define CRTC_FB(crtc) ((crtc)->fb)
232#else
233#define CRTC_FB(crtc) ((crtc)->primary->fb)
234#endif
235
236void vbox_enable_accel(struct vbox_private *vbox);
237void vbox_disable_accel(struct vbox_private *vbox);
238void vbox_report_caps(struct vbox_private *vbox);
239
240void vbox_framebuffer_dirty_rectangles(struct drm_framebuffer *fb,
241 struct drm_clip_rect *rects,
242 unsigned int num_rects);
243
244int vbox_framebuffer_init(struct drm_device *dev,
245 struct vbox_framebuffer *vbox_fb,
246#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 5, 0) || defined(RHEL_73)
247 const
248#endif
249 struct DRM_MODE_FB_CMD *mode_cmd,
250 struct drm_gem_object *obj);
251
252int vbox_fbdev_init(struct drm_device *dev);
253void vbox_fbdev_fini(struct drm_device *dev);
254void vbox_fbdev_set_suspend(struct drm_device *dev, int state);
255
256struct vbox_bo {
257 struct ttm_buffer_object bo;
258 struct ttm_placement placement;
259 struct ttm_bo_kmap_obj kmap;
260 struct drm_gem_object gem;
261#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(RHEL_73)
262 u32 placements[3];
263#else
264 struct ttm_place placements[3];
265#endif
266 int pin_count;
267};
268
269#define gem_to_vbox_bo(gobj) container_of((gobj), struct vbox_bo, gem)
270
271static inline struct vbox_bo *vbox_bo(struct ttm_buffer_object *bo)
272{
273 return container_of(bo, struct vbox_bo, bo);
274}
275
276#define to_vbox_obj(x) container_of(x, struct vbox_gem_object, base)
277
278int vbox_dumb_create(struct drm_file *file,
279 struct drm_device *dev,
280 struct drm_mode_create_dumb *args);
281#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 12, 0) && !defined(RHEL_73)
282int vbox_dumb_destroy(struct drm_file *file,
283 struct drm_device *dev, u32 handle);
284#endif
285
286void vbox_gem_free_object(struct drm_gem_object *obj);
287int vbox_dumb_mmap_offset(struct drm_file *file,
288 struct drm_device *dev,
289 u32 handle, u64 *offset);
290
291#define DRM_FILE_PAGE_OFFSET (0x10000000ULL >> PAGE_SHIFT)
292
293int vbox_mm_init(struct vbox_private *vbox);
294void vbox_mm_fini(struct vbox_private *vbox);
295
296int vbox_bo_create(struct drm_device *dev, int size, int align,
297 u32 flags, struct vbox_bo **pvboxbo);
298
299int vbox_gem_create(struct drm_device *dev,
300 u32 size, bool iskernel, struct drm_gem_object **obj);
301
302int vbox_bo_pin(struct vbox_bo *bo, u32 pl_flag, u64 *gpu_addr);
303int vbox_bo_unpin(struct vbox_bo *bo);
304
305static inline int vbox_bo_reserve(struct vbox_bo *bo, bool no_wait)
306{
307 int ret;
308
309#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 7, 0) || defined(RHEL_74)
310 ret = ttm_bo_reserve(&bo->bo, true, no_wait, NULL);
311#else
312 ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0);
313#endif
314 if (ret) {
315 if (ret != -ERESTARTSYS && ret != -EBUSY)
316 DRM_ERROR("reserve failed %p\n", bo);
317 return ret;
318 }
319 return 0;
320}
321
322static inline void vbox_bo_unreserve(struct vbox_bo *bo)
323{
324 ttm_bo_unreserve(&bo->bo);
325}
326
327void vbox_ttm_placement(struct vbox_bo *bo, int domain);
328int vbox_bo_push_sysram(struct vbox_bo *bo);
329int vbox_mmap(struct file *filp, struct vm_area_struct *vma);
330
331/* vbox_prime.c */
332int vbox_gem_prime_pin(struct drm_gem_object *obj);
333void vbox_gem_prime_unpin(struct drm_gem_object *obj);
334struct sg_table *vbox_gem_prime_get_sg_table(struct drm_gem_object *obj);
335struct drm_gem_object *vbox_gem_prime_import_sg_table(struct drm_device *dev,
336#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 18, 0) && !defined(RHEL_73)
337 size_t size,
338#else
339 struct dma_buf_attachment
340 *attach,
341#endif
342 struct sg_table *table);
343void *vbox_gem_prime_vmap(struct drm_gem_object *obj);
344void vbox_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
345int vbox_gem_prime_mmap(struct drm_gem_object *obj,
346 struct vm_area_struct *area);
347
348/* vbox_irq.c */
349int vbox_irq_init(struct vbox_private *vbox);
350void vbox_irq_fini(struct vbox_private *vbox);
351void vbox_report_hotplug(struct vbox_private *vbox);
352irqreturn_t vbox_irq_handler(int irq, void *arg);
353
354/* vbox_hgsmi.c */
355void *hgsmi_buffer_alloc(struct gen_pool *guest_pool, size_t size,
356 u8 channel, u16 channel_info);
357void hgsmi_buffer_free(struct gen_pool *guest_pool, void *buf);
358int hgsmi_buffer_submit(struct gen_pool *guest_pool, void *buf);
359
360static inline void vbox_write_ioport(u16 index, u16 data)
361{
362 outw(index, VBE_DISPI_IOPORT_INDEX);
363 outw(data, VBE_DISPI_IOPORT_DATA);
364}
365
366#endif
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