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1/*
2 * Copyright (C) 2015 Red Hat, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26#ifndef VIRTIO_DRV_H
27#define VIRTIO_DRV_H
28
29#include <linux/virtio.h>
30#include <linux/virtio_ids.h>
31#include <linux/virtio_config.h>
32#include <linux/virtio_gpu.h>
33
34#include <drm/drmP.h>
35#include <drm/drm_gem.h>
36#include <drm/drm_crtc_helper.h>
37#include <ttm/ttm_bo_api.h>
38#include <ttm/ttm_bo_driver.h>
39#include <ttm/ttm_placement.h>
40#include <ttm/ttm_module.h>
41
42#define DRIVER_NAME "virtio_gpu"
43#define DRIVER_DESC "virtio GPU"
44#define DRIVER_DATE "0"
45
46#define DRIVER_MAJOR 0
47#define DRIVER_MINOR 0
48#define DRIVER_PATCHLEVEL 1
49
50/* virtgpu_drm_bus.c */
51int drm_virtio_set_busid(struct drm_device *dev, struct drm_master *master);
52int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
53
54struct virtio_gpu_object {
55 struct drm_gem_object gem_base;
56 uint32_t hw_res_handle;
57
58 struct sg_table *pages;
59 void *vmap;
60 bool dumb;
61 struct ttm_place placement_code;
62 struct ttm_placement placement;
63 struct ttm_buffer_object tbo;
64 struct ttm_bo_kmap_obj kmap;
65};
66#define gem_to_virtio_gpu_obj(gobj) \
67 container_of((gobj), struct virtio_gpu_object, gem_base)
68
69struct virtio_gpu_vbuffer;
70struct virtio_gpu_device;
71
72typedef void (*virtio_gpu_resp_cb)(struct virtio_gpu_device *vgdev,
73 struct virtio_gpu_vbuffer *vbuf);
74
75struct virtio_gpu_fence_driver {
76 atomic64_t last_seq;
77 uint64_t sync_seq;
78 struct list_head fences;
79 spinlock_t lock;
80};
81
82struct virtio_gpu_fence {
83 struct fence f;
84 struct virtio_gpu_fence_driver *drv;
85 struct list_head node;
86 uint64_t seq;
87};
88#define to_virtio_fence(x) \
89 container_of(x, struct virtio_gpu_fence, f)
90
91struct virtio_gpu_vbuffer {
92 char *buf;
93 int size;
94
95 void *data_buf;
96 uint32_t data_size;
97
98 char *resp_buf;
99 int resp_size;
100
101 virtio_gpu_resp_cb resp_cb;
102
103 struct list_head list;
104};
105
106struct virtio_gpu_output {
107 int index;
108 struct drm_crtc crtc;
109 struct drm_connector conn;
110 struct drm_encoder enc;
111 struct virtio_gpu_display_one info;
112 struct virtio_gpu_update_cursor cursor;
113 int cur_x;
114 int cur_y;
115};
116#define drm_crtc_to_virtio_gpu_output(x) \
117 container_of(x, struct virtio_gpu_output, crtc)
118#define drm_connector_to_virtio_gpu_output(x) \
119 container_of(x, struct virtio_gpu_output, conn)
120#define drm_encoder_to_virtio_gpu_output(x) \
121 container_of(x, struct virtio_gpu_output, enc)
122
123struct virtio_gpu_framebuffer {
124 struct drm_framebuffer base;
125 struct drm_gem_object *obj;
126 int x1, y1, x2, y2; /* dirty rect */
127 spinlock_t dirty_lock;
128 uint32_t hw_res_handle;
129};
130#define to_virtio_gpu_framebuffer(x) \
131 container_of(x, struct virtio_gpu_framebuffer, base)
132
133struct virtio_gpu_mman {
134 struct ttm_bo_global_ref bo_global_ref;
135 struct drm_global_reference mem_global_ref;
136 bool mem_global_referenced;
137 struct ttm_bo_device bdev;
138};
139
140struct virtio_gpu_fbdev;
141
142struct virtio_gpu_queue {
143 struct virtqueue *vq;
144 spinlock_t qlock;
145 wait_queue_head_t ack_queue;
146 struct work_struct dequeue_work;
147};
148
149struct virtio_gpu_drv_capset {
150 uint32_t id;
151 uint32_t max_version;
152 uint32_t max_size;
153};
154
155struct virtio_gpu_drv_cap_cache {
156 struct list_head head;
157 void *caps_cache;
158 uint32_t id;
159 uint32_t version;
160 uint32_t size;
161 atomic_t is_valid;
162};
163
164struct virtio_gpu_device {
165 struct device *dev;
166 struct drm_device *ddev;
167
168 struct virtio_device *vdev;
169
170 struct virtio_gpu_mman mman;
171
172 /* pointer to fbdev info structure */
173 struct virtio_gpu_fbdev *vgfbdev;
174 struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS];
175 uint32_t num_scanouts;
176
177 struct virtio_gpu_queue ctrlq;
178 struct virtio_gpu_queue cursorq;
179 struct list_head free_vbufs;
180 spinlock_t free_vbufs_lock;
181 void *vbufs;
182 bool vqs_ready;
183
184 struct idr resource_idr;
185 spinlock_t resource_idr_lock;
186
187 wait_queue_head_t resp_wq;
188 /* current display info */
189 spinlock_t display_info_lock;
190 bool display_info_pending;
191
192 struct virtio_gpu_fence_driver fence_drv;
193
194 struct idr ctx_id_idr;
195 spinlock_t ctx_id_idr_lock;
196
197 bool has_virgl_3d;
198
199 struct work_struct config_changed_work;
200
201 struct virtio_gpu_drv_capset *capsets;
202 uint32_t num_capsets;
203 struct list_head cap_cache;
204};
205
206struct virtio_gpu_fpriv {
207 uint32_t ctx_id;
208};
209
210/* virtio_ioctl.c */
211#define DRM_VIRTIO_NUM_IOCTLS 10
212extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
213
214/* virtio_kms.c */
215int virtio_gpu_driver_load(struct drm_device *dev, unsigned long flags);
216int virtio_gpu_driver_unload(struct drm_device *dev);
217int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
218void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
219
220/* virtio_gem.c */
221void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj);
222int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
223void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
224int virtio_gpu_gem_create(struct drm_file *file,
225 struct drm_device *dev,
226 uint64_t size,
227 struct drm_gem_object **obj_p,
228 uint32_t *handle_p);
229int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
230 struct drm_file *file);
231void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
232 struct drm_file *file);
233struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
234 size_t size, bool kernel,
235 bool pinned);
236int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
237 struct drm_device *dev,
238 struct drm_mode_create_dumb *args);
239int virtio_gpu_mode_dumb_destroy(struct drm_file *file_priv,
240 struct drm_device *dev,
241 uint32_t handle);
242int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
243 struct drm_device *dev,
244 uint32_t handle, uint64_t *offset_p);
245
246/* virtio_fb */
247#define VIRTIO_GPUFB_CONN_LIMIT 1
248int virtio_gpu_fbdev_init(struct virtio_gpu_device *vgdev);
249void virtio_gpu_fbdev_fini(struct virtio_gpu_device *vgdev);
250int virtio_gpu_surface_dirty(struct virtio_gpu_framebuffer *qfb,
251 struct drm_clip_rect *clips,
252 unsigned num_clips);
253/* virtio vg */
254int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
255void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
256void virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
257 uint32_t *resid);
258void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id);
259void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
260 uint32_t resource_id,
261 uint32_t format,
262 uint32_t width,
263 uint32_t height);
264void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
265 uint32_t resource_id);
266void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
267 uint32_t resource_id, uint64_t offset,
268 __le32 width, __le32 height,
269 __le32 x, __le32 y,
270 struct virtio_gpu_fence **fence);
271void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
272 uint32_t resource_id,
273 uint32_t x, uint32_t y,
274 uint32_t width, uint32_t height);
275void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
276 uint32_t scanout_id, uint32_t resource_id,
277 uint32_t width, uint32_t height,
278 uint32_t x, uint32_t y);
279int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
280 struct virtio_gpu_object *obj,
281 uint32_t resource_id,
282 struct virtio_gpu_fence **fence);
283int virtio_gpu_attach_status_page(struct virtio_gpu_device *vgdev);
284int virtio_gpu_detach_status_page(struct virtio_gpu_device *vgdev);
285void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
286 struct virtio_gpu_output *output);
287int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev);
288void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
289 uint32_t resource_id);
290int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx);
291int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
292 int idx, int version,
293 struct virtio_gpu_drv_cap_cache **cache_p);
294void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
295 uint32_t nlen, const char *name);
296void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
297 uint32_t id);
298void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
299 uint32_t ctx_id,
300 uint32_t resource_id);
301void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
302 uint32_t ctx_id,
303 uint32_t resource_id);
304void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
305 void *data, uint32_t data_size,
306 uint32_t ctx_id, struct virtio_gpu_fence **fence);
307void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
308 uint32_t resource_id, uint32_t ctx_id,
309 uint64_t offset, uint32_t level,
310 struct virtio_gpu_box *box,
311 struct virtio_gpu_fence **fence);
312void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
313 uint32_t resource_id, uint32_t ctx_id,
314 uint64_t offset, uint32_t level,
315 struct virtio_gpu_box *box,
316 struct virtio_gpu_fence **fence);
317void
318virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
319 struct virtio_gpu_resource_create_3d *rc_3d,
320 struct virtio_gpu_fence **fence);
321void virtio_gpu_ctrl_ack(struct virtqueue *vq);
322void virtio_gpu_cursor_ack(struct virtqueue *vq);
323void virtio_gpu_fence_ack(struct virtqueue *vq);
324void virtio_gpu_dequeue_ctrl_func(struct work_struct *work);
325void virtio_gpu_dequeue_cursor_func(struct work_struct *work);
326void virtio_gpu_dequeue_fence_func(struct work_struct *work);
327
328/* virtio_gpu_display.c */
329int virtio_gpu_framebuffer_init(struct drm_device *dev,
330 struct virtio_gpu_framebuffer *vgfb,
331 const struct drm_mode_fb_cmd2 *mode_cmd,
332 struct drm_gem_object *obj);
333int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
334void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
335
336/* virtio_gpu_plane.c */
337struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
338 int index);
339
340/* virtio_gpu_ttm.c */
341int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev);
342void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev);
343int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
344
345/* virtio_gpu_fence.c */
346int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
347 struct virtio_gpu_ctrl_hdr *cmd_hdr,
348 struct virtio_gpu_fence **fence);
349void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
350 u64 last_seq);
351
352/* virtio_gpu_object */
353int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
354 unsigned long size, bool kernel, bool pinned,
355 struct virtio_gpu_object **bo_ptr);
356int virtio_gpu_object_kmap(struct virtio_gpu_object *bo, void **ptr);
357int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev,
358 struct virtio_gpu_object *bo);
359void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo);
360int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait);
361
362/* virtgpu_prime.c */
363int virtgpu_gem_prime_pin(struct drm_gem_object *obj);
364void virtgpu_gem_prime_unpin(struct drm_gem_object *obj);
365struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj);
366struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
367 struct drm_device *dev, struct dma_buf_attachment *attach,
368 struct sg_table *sgt);
369void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj);
370void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
371int virtgpu_gem_prime_mmap(struct drm_gem_object *obj,
372 struct vm_area_struct *vma);
373
374static inline struct virtio_gpu_object*
375virtio_gpu_object_ref(struct virtio_gpu_object *bo)
376{
377 ttm_bo_reference(&bo->tbo);
378 return bo;
379}
380
381static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo)
382{
383 struct ttm_buffer_object *tbo;
384
385 if ((*bo) == NULL)
386 return;
387 tbo = &((*bo)->tbo);
388 ttm_bo_unref(&tbo);
389 if (tbo == NULL)
390 *bo = NULL;
391}
392
393static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo)
394{
395 return drm_vma_node_offset_addr(&bo->tbo.vma_node);
396}
397
398static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo,
399 bool no_wait)
400{
401 int r;
402
403 r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, NULL);
404 if (unlikely(r != 0)) {
405 if (r != -ERESTARTSYS) {
406 struct virtio_gpu_device *qdev =
407 bo->gem_base.dev->dev_private;
408 dev_err(qdev->dev, "%p reserve failed\n", bo);
409 }
410 return r;
411 }
412 return 0;
413}
414
415static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo)
416{
417 ttm_bo_unreserve(&bo->tbo);
418}
419
420/* virgl debufs */
421int virtio_gpu_debugfs_init(struct drm_minor *minor);
422void virtio_gpu_debugfs_takedown(struct drm_minor *minor);
423
424#endif
1/*
2 * Copyright (C) 2015 Red Hat, Inc.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the
14 * next paragraph) shall be included in all copies or substantial
15 * portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26#ifndef VIRTIO_DRV_H
27#define VIRTIO_DRV_H
28
29#include <linux/dma-direction.h>
30#include <linux/virtio.h>
31#include <linux/virtio_ids.h>
32#include <linux/virtio_config.h>
33#include <linux/virtio_gpu.h>
34
35#include <drm/drm_atomic.h>
36#include <drm/drm_drv.h>
37#include <drm/drm_encoder.h>
38#include <drm/drm_fourcc.h>
39#include <drm/drm_framebuffer.h>
40#include <drm/drm_gem.h>
41#include <drm/drm_gem_shmem_helper.h>
42#include <drm/drm_ioctl.h>
43#include <drm/drm_probe_helper.h>
44#include <drm/virtgpu_drm.h>
45
46#define DRIVER_NAME "virtio_gpu"
47#define DRIVER_DESC "virtio GPU"
48#define DRIVER_DATE "0"
49
50#define DRIVER_MAJOR 0
51#define DRIVER_MINOR 1
52#define DRIVER_PATCHLEVEL 0
53
54#define STATE_INITIALIZING 0
55#define STATE_OK 1
56#define STATE_ERR 2
57
58#define MAX_CAPSET_ID 63
59#define MAX_RINGS 64
60
61/* See virtio_gpu_ctx_create. One additional character for NULL terminator. */
62#define DEBUG_NAME_MAX_LEN 65
63
64struct virtio_gpu_object_params {
65 unsigned long size;
66 bool dumb;
67 /* 3d */
68 bool virgl;
69 bool blob;
70
71 /* classic resources only */
72 uint32_t format;
73 uint32_t width;
74 uint32_t height;
75 uint32_t target;
76 uint32_t bind;
77 uint32_t depth;
78 uint32_t array_size;
79 uint32_t last_level;
80 uint32_t nr_samples;
81 uint32_t flags;
82
83 /* blob resources only */
84 uint32_t ctx_id;
85 uint32_t blob_mem;
86 uint32_t blob_flags;
87 uint64_t blob_id;
88};
89
90struct virtio_gpu_object {
91 struct drm_gem_shmem_object base;
92 uint32_t hw_res_handle;
93 bool dumb;
94 bool created;
95 bool host3d_blob, guest_blob;
96 uint32_t blob_mem, blob_flags;
97
98 int uuid_state;
99 uuid_t uuid;
100};
101#define gem_to_virtio_gpu_obj(gobj) \
102 container_of((gobj), struct virtio_gpu_object, base.base)
103
104struct virtio_gpu_object_shmem {
105 struct virtio_gpu_object base;
106};
107
108struct virtio_gpu_object_vram {
109 struct virtio_gpu_object base;
110 uint32_t map_state;
111 uint32_t map_info;
112 struct drm_mm_node vram_node;
113};
114
115#define to_virtio_gpu_shmem(virtio_gpu_object) \
116 container_of((virtio_gpu_object), struct virtio_gpu_object_shmem, base)
117
118#define to_virtio_gpu_vram(virtio_gpu_object) \
119 container_of((virtio_gpu_object), struct virtio_gpu_object_vram, base)
120
121struct virtio_gpu_object_array {
122 struct ww_acquire_ctx ticket;
123 struct list_head next;
124 u32 nents, total;
125 struct drm_gem_object *objs[] __counted_by(total);
126};
127
128struct virtio_gpu_vbuffer;
129struct virtio_gpu_device;
130
131typedef void (*virtio_gpu_resp_cb)(struct virtio_gpu_device *vgdev,
132 struct virtio_gpu_vbuffer *vbuf);
133
134struct virtio_gpu_fence_driver {
135 atomic64_t last_fence_id;
136 uint64_t current_fence_id;
137 uint64_t context;
138 struct list_head fences;
139 spinlock_t lock;
140};
141
142struct virtio_gpu_fence_event {
143 struct drm_pending_event base;
144 struct drm_event event;
145};
146
147struct virtio_gpu_fence {
148 struct dma_fence f;
149 uint32_t ring_idx;
150 uint64_t fence_id;
151 bool emit_fence_info;
152 struct virtio_gpu_fence_event *e;
153 struct virtio_gpu_fence_driver *drv;
154 struct list_head node;
155};
156
157struct virtio_gpu_vbuffer {
158 char *buf;
159 int size;
160
161 void *data_buf;
162 uint32_t data_size;
163
164 char *resp_buf;
165 int resp_size;
166 virtio_gpu_resp_cb resp_cb;
167 void *resp_cb_data;
168
169 struct virtio_gpu_object_array *objs;
170 struct list_head list;
171
172 uint32_t seqno;
173};
174
175struct virtio_gpu_output {
176 int index;
177 struct drm_crtc crtc;
178 struct drm_connector conn;
179 struct drm_encoder enc;
180 struct virtio_gpu_display_one info;
181 struct virtio_gpu_update_cursor cursor;
182 struct edid *edid;
183 int cur_x;
184 int cur_y;
185 bool needs_modeset;
186};
187#define drm_crtc_to_virtio_gpu_output(x) \
188 container_of(x, struct virtio_gpu_output, crtc)
189
190struct virtio_gpu_framebuffer {
191 struct drm_framebuffer base;
192 struct virtio_gpu_fence *fence;
193};
194#define to_virtio_gpu_framebuffer(x) \
195 container_of(x, struct virtio_gpu_framebuffer, base)
196
197struct virtio_gpu_queue {
198 struct virtqueue *vq;
199 spinlock_t qlock;
200 wait_queue_head_t ack_queue;
201 struct work_struct dequeue_work;
202 uint32_t seqno;
203};
204
205struct virtio_gpu_drv_capset {
206 uint32_t id;
207 uint32_t max_version;
208 uint32_t max_size;
209};
210
211struct virtio_gpu_drv_cap_cache {
212 struct list_head head;
213 void *caps_cache;
214 uint32_t id;
215 uint32_t version;
216 uint32_t size;
217 atomic_t is_valid;
218};
219
220struct virtio_gpu_device {
221 struct drm_device *ddev;
222
223 struct virtio_device *vdev;
224
225 struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS];
226 uint32_t num_scanouts;
227
228 struct virtio_gpu_queue ctrlq;
229 struct virtio_gpu_queue cursorq;
230 struct kmem_cache *vbufs;
231
232 atomic_t pending_commands;
233
234 struct ida resource_ida;
235
236 wait_queue_head_t resp_wq;
237 /* current display info */
238 spinlock_t display_info_lock;
239 bool display_info_pending;
240
241 struct virtio_gpu_fence_driver fence_drv;
242
243 struct ida ctx_id_ida;
244
245 bool has_virgl_3d;
246 bool has_edid;
247 bool has_indirect;
248 bool has_resource_assign_uuid;
249 bool has_resource_blob;
250 bool has_host_visible;
251 bool has_context_init;
252 struct virtio_shm_region host_visible_region;
253 struct drm_mm host_visible_mm;
254
255 struct work_struct config_changed_work;
256
257 struct work_struct obj_free_work;
258 spinlock_t obj_free_lock;
259 struct list_head obj_free_list;
260
261 struct virtio_gpu_drv_capset *capsets;
262 uint32_t num_capsets;
263 uint64_t capset_id_mask;
264 struct list_head cap_cache;
265
266 /* protects uuid state when exporting */
267 spinlock_t resource_export_lock;
268 /* protects map state and host_visible_mm */
269 spinlock_t host_visible_lock;
270};
271
272struct virtio_gpu_fpriv {
273 uint32_t ctx_id;
274 uint32_t context_init;
275 bool context_created;
276 uint32_t num_rings;
277 uint64_t base_fence_ctx;
278 uint64_t ring_idx_mask;
279 struct mutex context_lock;
280 char debug_name[DEBUG_NAME_MAX_LEN];
281 bool explicit_debug_name;
282};
283
284/* virtgpu_ioctl.c */
285#define DRM_VIRTIO_NUM_IOCTLS 12
286extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS];
287void virtio_gpu_create_context(struct drm_device *dev, struct drm_file *file);
288
289/* virtgpu_kms.c */
290int virtio_gpu_init(struct virtio_device *vdev, struct drm_device *dev);
291void virtio_gpu_deinit(struct drm_device *dev);
292void virtio_gpu_release(struct drm_device *dev);
293int virtio_gpu_driver_open(struct drm_device *dev, struct drm_file *file);
294void virtio_gpu_driver_postclose(struct drm_device *dev, struct drm_file *file);
295
296/* virtgpu_gem.c */
297int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
298 struct drm_file *file);
299void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
300 struct drm_file *file);
301int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
302 struct drm_device *dev,
303 struct drm_mode_create_dumb *args);
304int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv,
305 struct drm_device *dev,
306 uint32_t handle, uint64_t *offset_p);
307
308struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents);
309struct virtio_gpu_object_array*
310virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents);
311void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs,
312 struct drm_gem_object *obj);
313int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs);
314void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs);
315void virtio_gpu_array_add_fence(struct virtio_gpu_object_array *objs,
316 struct dma_fence *fence);
317void virtio_gpu_array_put_free(struct virtio_gpu_object_array *objs);
318void virtio_gpu_array_put_free_delayed(struct virtio_gpu_device *vgdev,
319 struct virtio_gpu_object_array *objs);
320void virtio_gpu_array_put_free_work(struct work_struct *work);
321
322/* virtgpu_vq.c */
323int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
324void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
325void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
326 struct virtio_gpu_object *bo,
327 struct virtio_gpu_object_params *params,
328 struct virtio_gpu_object_array *objs,
329 struct virtio_gpu_fence *fence);
330void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
331 struct virtio_gpu_object *bo);
332void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
333 uint64_t offset,
334 uint32_t width, uint32_t height,
335 uint32_t x, uint32_t y,
336 struct virtio_gpu_object_array *objs,
337 struct virtio_gpu_fence *fence);
338void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
339 uint32_t resource_id,
340 uint32_t x, uint32_t y,
341 uint32_t width, uint32_t height,
342 struct virtio_gpu_object_array *objs,
343 struct virtio_gpu_fence *fence);
344void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
345 uint32_t scanout_id, uint32_t resource_id,
346 uint32_t width, uint32_t height,
347 uint32_t x, uint32_t y);
348void virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
349 struct virtio_gpu_object *obj,
350 struct virtio_gpu_mem_entry *ents,
351 unsigned int nents);
352void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
353 struct virtio_gpu_output *output);
354int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev);
355int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx);
356int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
357 int idx, int version,
358 struct virtio_gpu_drv_cap_cache **cache_p);
359int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev);
360void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
361 uint32_t context_init, uint32_t nlen,
362 const char *name);
363void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
364 uint32_t id);
365void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
366 uint32_t ctx_id,
367 struct virtio_gpu_object_array *objs);
368void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
369 uint32_t ctx_id,
370 struct virtio_gpu_object_array *objs);
371void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
372 void *data, uint32_t data_size,
373 uint32_t ctx_id,
374 struct virtio_gpu_object_array *objs,
375 struct virtio_gpu_fence *fence);
376void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
377 uint32_t ctx_id,
378 uint64_t offset, uint32_t level,
379 uint32_t stride,
380 uint32_t layer_stride,
381 struct drm_virtgpu_3d_box *box,
382 struct virtio_gpu_object_array *objs,
383 struct virtio_gpu_fence *fence);
384void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
385 uint32_t ctx_id,
386 uint64_t offset, uint32_t level,
387 uint32_t stride,
388 uint32_t layer_stride,
389 struct drm_virtgpu_3d_box *box,
390 struct virtio_gpu_object_array *objs,
391 struct virtio_gpu_fence *fence);
392void
393virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
394 struct virtio_gpu_object *bo,
395 struct virtio_gpu_object_params *params,
396 struct virtio_gpu_object_array *objs,
397 struct virtio_gpu_fence *fence);
398void virtio_gpu_ctrl_ack(struct virtqueue *vq);
399void virtio_gpu_cursor_ack(struct virtqueue *vq);
400void virtio_gpu_dequeue_ctrl_func(struct work_struct *work);
401void virtio_gpu_dequeue_cursor_func(struct work_struct *work);
402void virtio_gpu_notify(struct virtio_gpu_device *vgdev);
403
404int
405virtio_gpu_cmd_resource_assign_uuid(struct virtio_gpu_device *vgdev,
406 struct virtio_gpu_object_array *objs);
407
408int virtio_gpu_cmd_map(struct virtio_gpu_device *vgdev,
409 struct virtio_gpu_object_array *objs, uint64_t offset);
410
411void virtio_gpu_cmd_unmap(struct virtio_gpu_device *vgdev,
412 struct virtio_gpu_object *bo);
413
414void
415virtio_gpu_cmd_resource_create_blob(struct virtio_gpu_device *vgdev,
416 struct virtio_gpu_object *bo,
417 struct virtio_gpu_object_params *params,
418 struct virtio_gpu_mem_entry *ents,
419 uint32_t nents);
420void
421virtio_gpu_cmd_set_scanout_blob(struct virtio_gpu_device *vgdev,
422 uint32_t scanout_id,
423 struct virtio_gpu_object *bo,
424 struct drm_framebuffer *fb,
425 uint32_t width, uint32_t height,
426 uint32_t x, uint32_t y);
427
428/* virtgpu_display.c */
429int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
430void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
431
432/* virtgpu_plane.c */
433uint32_t virtio_gpu_translate_format(uint32_t drm_fourcc);
434struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
435 enum drm_plane_type type,
436 int index);
437
438/* virtgpu_fence.c */
439struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev,
440 uint64_t base_fence_ctx,
441 uint32_t ring_idx);
442void virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
443 struct virtio_gpu_ctrl_hdr *cmd_hdr,
444 struct virtio_gpu_fence *fence);
445void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
446 u64 fence_id);
447
448/* virtgpu_object.c */
449void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo);
450struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
451 size_t size);
452int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
453 struct virtio_gpu_object_params *params,
454 struct virtio_gpu_object **bo_ptr,
455 struct virtio_gpu_fence *fence);
456
457bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo);
458
459int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev,
460 uint32_t *resid);
461/* virtgpu_prime.c */
462int virtio_gpu_resource_assign_uuid(struct virtio_gpu_device *vgdev,
463 struct virtio_gpu_object *bo);
464struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj,
465 int flags);
466struct drm_gem_object *virtgpu_gem_prime_import(struct drm_device *dev,
467 struct dma_buf *buf);
468struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
469 struct drm_device *dev, struct dma_buf_attachment *attach,
470 struct sg_table *sgt);
471
472/* virtgpu_debugfs.c */
473void virtio_gpu_debugfs_init(struct drm_minor *minor);
474
475/* virtgpu_vram.c */
476bool virtio_gpu_is_vram(struct virtio_gpu_object *bo);
477int virtio_gpu_vram_create(struct virtio_gpu_device *vgdev,
478 struct virtio_gpu_object_params *params,
479 struct virtio_gpu_object **bo_ptr);
480struct sg_table *virtio_gpu_vram_map_dma_buf(struct virtio_gpu_object *bo,
481 struct device *dev,
482 enum dma_data_direction dir);
483void virtio_gpu_vram_unmap_dma_buf(struct device *dev,
484 struct sg_table *sgt,
485 enum dma_data_direction dir);
486
487/* virtgpu_submit.c */
488int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data,
489 struct drm_file *file);
490
491#endif