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d52c454a MAL |
1 | /* |
2 | * Virtio vhost-user GPU Device | |
3 | * | |
4 | * Copyright Red Hat, Inc. 2013-2018 | |
5 | * | |
6 | * Authors: | |
7 | * Dave Airlie <airlied@redhat.com> | |
8 | * Gerd Hoffmann <kraxel@redhat.com> | |
9 | * Marc-André Lureau <marcandre.lureau@redhat.com> | |
10 | * | |
11 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
12 | * See the COPYING file in the top-level directory. | |
13 | */ | |
14 | #include "qemu/osdep.h" | |
15 | #include "qemu/drm.h" | |
16 | #include "qapi/error.h" | |
17 | #include "qemu/sockets.h" | |
18 | ||
19 | #include <pixman.h> | |
20 | #include <glib-unix.h> | |
21 | ||
22 | #include "vugpu.h" | |
23 | #include "hw/virtio/virtio-gpu-bswap.h" | |
24 | #include "hw/virtio/virtio-gpu-pixman.h" | |
25 | #include "virgl.h" | |
26 | #include "vugbm.h" | |
27 | ||
6f5fd837 SH |
28 | enum { |
29 | VHOST_USER_GPU_MAX_QUEUES = 2, | |
30 | }; | |
31 | ||
d52c454a MAL |
32 | struct virtio_gpu_simple_resource { |
33 | uint32_t resource_id; | |
34 | uint32_t width; | |
35 | uint32_t height; | |
36 | uint32_t format; | |
37 | struct iovec *iov; | |
38 | unsigned int iov_cnt; | |
39 | uint32_t scanout_bitmask; | |
40 | pixman_image_t *image; | |
41 | struct vugbm_buffer buffer; | |
42 | QTAILQ_ENTRY(virtio_gpu_simple_resource) next; | |
43 | }; | |
44 | ||
45 | static gboolean opt_print_caps; | |
46 | static int opt_fdnum = -1; | |
47 | static char *opt_socket_path; | |
48 | static char *opt_render_node; | |
49 | static gboolean opt_virgl; | |
50 | ||
51 | static void vg_handle_ctrl(VuDev *dev, int qidx); | |
52 | ||
53 | static const char * | |
54 | vg_cmd_to_string(int cmd) | |
55 | { | |
56 | #define CMD(cmd) [cmd] = #cmd | |
57 | static const char *vg_cmd_str[] = { | |
58 | CMD(VIRTIO_GPU_UNDEFINED), | |
59 | ||
60 | /* 2d commands */ | |
61 | CMD(VIRTIO_GPU_CMD_GET_DISPLAY_INFO), | |
62 | CMD(VIRTIO_GPU_CMD_RESOURCE_CREATE_2D), | |
63 | CMD(VIRTIO_GPU_CMD_RESOURCE_UNREF), | |
64 | CMD(VIRTIO_GPU_CMD_SET_SCANOUT), | |
65 | CMD(VIRTIO_GPU_CMD_RESOURCE_FLUSH), | |
66 | CMD(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D), | |
67 | CMD(VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING), | |
68 | CMD(VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING), | |
69 | CMD(VIRTIO_GPU_CMD_GET_CAPSET_INFO), | |
70 | CMD(VIRTIO_GPU_CMD_GET_CAPSET), | |
71 | ||
72 | /* 3d commands */ | |
73 | CMD(VIRTIO_GPU_CMD_CTX_CREATE), | |
74 | CMD(VIRTIO_GPU_CMD_CTX_DESTROY), | |
75 | CMD(VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE), | |
76 | CMD(VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE), | |
77 | CMD(VIRTIO_GPU_CMD_RESOURCE_CREATE_3D), | |
78 | CMD(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D), | |
79 | CMD(VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D), | |
80 | CMD(VIRTIO_GPU_CMD_SUBMIT_3D), | |
81 | ||
82 | /* cursor commands */ | |
83 | CMD(VIRTIO_GPU_CMD_UPDATE_CURSOR), | |
84 | CMD(VIRTIO_GPU_CMD_MOVE_CURSOR), | |
85 | }; | |
86 | #undef REQ | |
87 | ||
88 | if (cmd >= 0 && cmd < G_N_ELEMENTS(vg_cmd_str)) { | |
89 | return vg_cmd_str[cmd]; | |
90 | } else { | |
91 | return "unknown"; | |
92 | } | |
93 | } | |
94 | ||
95 | static int | |
96 | vg_sock_fd_read(int sock, void *buf, ssize_t buflen) | |
97 | { | |
98 | int ret; | |
99 | ||
100 | do { | |
101 | ret = read(sock, buf, buflen); | |
102 | } while (ret < 0 && (errno == EINTR || errno == EAGAIN)); | |
103 | ||
104 | g_warn_if_fail(ret == buflen); | |
105 | return ret; | |
106 | } | |
107 | ||
108 | static void | |
109 | vg_sock_fd_close(VuGpu *g) | |
110 | { | |
111 | if (g->sock_fd >= 0) { | |
112 | close(g->sock_fd); | |
113 | g->sock_fd = -1; | |
114 | } | |
115 | } | |
116 | ||
117 | static gboolean | |
118 | source_wait_cb(gint fd, GIOCondition condition, gpointer user_data) | |
119 | { | |
120 | VuGpu *g = user_data; | |
121 | ||
122 | if (!vg_recv_msg(g, VHOST_USER_GPU_DMABUF_UPDATE, 0, NULL)) { | |
123 | return G_SOURCE_CONTINUE; | |
124 | } | |
125 | ||
126 | /* resume */ | |
127 | g->wait_ok = 0; | |
128 | vg_handle_ctrl(&g->dev.parent, 0); | |
129 | ||
130 | return G_SOURCE_REMOVE; | |
131 | } | |
132 | ||
133 | void | |
134 | vg_wait_ok(VuGpu *g) | |
135 | { | |
136 | assert(g->wait_ok == 0); | |
137 | g->wait_ok = g_unix_fd_add(g->sock_fd, G_IO_IN | G_IO_HUP, | |
138 | source_wait_cb, g); | |
139 | } | |
140 | ||
141 | static int | |
142 | vg_sock_fd_write(int sock, const void *buf, ssize_t buflen, int fd) | |
143 | { | |
144 | ssize_t ret; | |
c715130a MAL |
145 | struct iovec iov = { |
146 | .iov_base = (void *)buf, | |
147 | .iov_len = buflen, | |
148 | }; | |
149 | struct msghdr msg = { | |
150 | .msg_iov = &iov, | |
151 | .msg_iovlen = 1, | |
152 | }; | |
d52c454a MAL |
153 | union { |
154 | struct cmsghdr cmsghdr; | |
155 | char control[CMSG_SPACE(sizeof(int))]; | |
156 | } cmsgu; | |
157 | struct cmsghdr *cmsg; | |
158 | ||
d52c454a MAL |
159 | if (fd != -1) { |
160 | msg.msg_control = cmsgu.control; | |
161 | msg.msg_controllen = sizeof(cmsgu.control); | |
162 | ||
163 | cmsg = CMSG_FIRSTHDR(&msg); | |
164 | cmsg->cmsg_len = CMSG_LEN(sizeof(int)); | |
165 | cmsg->cmsg_level = SOL_SOCKET; | |
166 | cmsg->cmsg_type = SCM_RIGHTS; | |
167 | ||
168 | *((int *)CMSG_DATA(cmsg)) = fd; | |
d52c454a MAL |
169 | } |
170 | ||
171 | do { | |
172 | ret = sendmsg(sock, &msg, 0); | |
173 | } while (ret == -1 && (errno == EINTR || errno == EAGAIN)); | |
174 | ||
175 | g_warn_if_fail(ret == buflen); | |
176 | return ret; | |
177 | } | |
178 | ||
179 | void | |
180 | vg_send_msg(VuGpu *vg, const VhostUserGpuMsg *msg, int fd) | |
181 | { | |
182 | if (vg_sock_fd_write(vg->sock_fd, msg, | |
183 | VHOST_USER_GPU_HDR_SIZE + msg->size, fd) < 0) { | |
184 | vg_sock_fd_close(vg); | |
185 | } | |
186 | } | |
187 | ||
188 | bool | |
189 | vg_recv_msg(VuGpu *g, uint32_t expect_req, uint32_t expect_size, | |
190 | gpointer payload) | |
191 | { | |
192 | uint32_t req, flags, size; | |
193 | ||
194 | if (vg_sock_fd_read(g->sock_fd, &req, sizeof(req)) < 0 || | |
195 | vg_sock_fd_read(g->sock_fd, &flags, sizeof(flags)) < 0 || | |
196 | vg_sock_fd_read(g->sock_fd, &size, sizeof(size)) < 0) { | |
197 | goto err; | |
198 | } | |
199 | ||
200 | g_return_val_if_fail(req == expect_req, false); | |
201 | g_return_val_if_fail(flags & VHOST_USER_GPU_MSG_FLAG_REPLY, false); | |
202 | g_return_val_if_fail(size == expect_size, false); | |
203 | ||
204 | if (size && vg_sock_fd_read(g->sock_fd, payload, size) != size) { | |
205 | goto err; | |
206 | } | |
207 | ||
208 | return true; | |
209 | ||
210 | err: | |
211 | vg_sock_fd_close(g); | |
212 | return false; | |
213 | } | |
214 | ||
215 | static struct virtio_gpu_simple_resource * | |
216 | virtio_gpu_find_resource(VuGpu *g, uint32_t resource_id) | |
217 | { | |
218 | struct virtio_gpu_simple_resource *res; | |
219 | ||
220 | QTAILQ_FOREACH(res, &g->reslist, next) { | |
221 | if (res->resource_id == resource_id) { | |
222 | return res; | |
223 | } | |
224 | } | |
225 | return NULL; | |
226 | } | |
227 | ||
228 | void | |
229 | vg_ctrl_response(VuGpu *g, | |
230 | struct virtio_gpu_ctrl_command *cmd, | |
231 | struct virtio_gpu_ctrl_hdr *resp, | |
232 | size_t resp_len) | |
233 | { | |
234 | size_t s; | |
235 | ||
236 | if (cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE) { | |
237 | resp->flags |= VIRTIO_GPU_FLAG_FENCE; | |
238 | resp->fence_id = cmd->cmd_hdr.fence_id; | |
239 | resp->ctx_id = cmd->cmd_hdr.ctx_id; | |
240 | } | |
241 | virtio_gpu_ctrl_hdr_bswap(resp); | |
242 | s = iov_from_buf(cmd->elem.in_sg, cmd->elem.in_num, 0, resp, resp_len); | |
243 | if (s != resp_len) { | |
244 | g_critical("%s: response size incorrect %zu vs %zu", | |
245 | __func__, s, resp_len); | |
246 | } | |
247 | vu_queue_push(&g->dev.parent, cmd->vq, &cmd->elem, s); | |
248 | vu_queue_notify(&g->dev.parent, cmd->vq); | |
249 | cmd->finished = true; | |
250 | } | |
251 | ||
252 | void | |
253 | vg_ctrl_response_nodata(VuGpu *g, | |
254 | struct virtio_gpu_ctrl_command *cmd, | |
255 | enum virtio_gpu_ctrl_type type) | |
256 | { | |
257 | struct virtio_gpu_ctrl_hdr resp = { | |
258 | .type = type, | |
259 | }; | |
260 | ||
261 | vg_ctrl_response(g, cmd, &resp, sizeof(resp)); | |
262 | } | |
263 | ||
264 | void | |
265 | vg_get_display_info(VuGpu *vg, struct virtio_gpu_ctrl_command *cmd) | |
266 | { | |
267 | struct virtio_gpu_resp_display_info dpy_info = { {} }; | |
268 | VhostUserGpuMsg msg = { | |
269 | .request = VHOST_USER_GPU_GET_DISPLAY_INFO, | |
270 | .size = 0, | |
271 | }; | |
272 | ||
273 | assert(vg->wait_ok == 0); | |
274 | ||
275 | vg_send_msg(vg, &msg, -1); | |
276 | if (!vg_recv_msg(vg, msg.request, sizeof(dpy_info), &dpy_info)) { | |
277 | return; | |
278 | } | |
279 | ||
280 | vg_ctrl_response(vg, cmd, &dpy_info.hdr, sizeof(dpy_info)); | |
281 | } | |
282 | ||
283 | static void | |
284 | vg_resource_create_2d(VuGpu *g, | |
285 | struct virtio_gpu_ctrl_command *cmd) | |
286 | { | |
287 | pixman_format_code_t pformat; | |
288 | struct virtio_gpu_simple_resource *res; | |
289 | struct virtio_gpu_resource_create_2d c2d; | |
290 | ||
291 | VUGPU_FILL_CMD(c2d); | |
292 | virtio_gpu_bswap_32(&c2d, sizeof(c2d)); | |
293 | ||
294 | if (c2d.resource_id == 0) { | |
295 | g_critical("%s: resource id 0 is not allowed", __func__); | |
296 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
297 | return; | |
298 | } | |
299 | ||
300 | res = virtio_gpu_find_resource(g, c2d.resource_id); | |
301 | if (res) { | |
302 | g_critical("%s: resource already exists %d", __func__, c2d.resource_id); | |
303 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
304 | return; | |
305 | } | |
306 | ||
307 | res = g_new0(struct virtio_gpu_simple_resource, 1); | |
308 | res->width = c2d.width; | |
309 | res->height = c2d.height; | |
310 | res->format = c2d.format; | |
311 | res->resource_id = c2d.resource_id; | |
312 | ||
313 | pformat = virtio_gpu_get_pixman_format(c2d.format); | |
314 | if (!pformat) { | |
315 | g_critical("%s: host couldn't handle guest format %d", | |
316 | __func__, c2d.format); | |
317 | g_free(res); | |
318 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; | |
319 | return; | |
320 | } | |
321 | vugbm_buffer_create(&res->buffer, &g->gdev, c2d.width, c2d.height); | |
322 | res->image = pixman_image_create_bits(pformat, | |
323 | c2d.width, | |
324 | c2d.height, | |
325 | (uint32_t *)res->buffer.mmap, | |
326 | res->buffer.stride); | |
327 | if (!res->image) { | |
328 | g_critical("%s: resource creation failed %d %d %d", | |
329 | __func__, c2d.resource_id, c2d.width, c2d.height); | |
330 | g_free(res); | |
331 | cmd->error = VIRTIO_GPU_RESP_ERR_OUT_OF_MEMORY; | |
332 | return; | |
333 | } | |
334 | ||
335 | QTAILQ_INSERT_HEAD(&g->reslist, res, next); | |
336 | } | |
337 | ||
338 | static void | |
339 | vg_disable_scanout(VuGpu *g, int scanout_id) | |
340 | { | |
341 | struct virtio_gpu_scanout *scanout = &g->scanout[scanout_id]; | |
342 | struct virtio_gpu_simple_resource *res; | |
343 | ||
344 | if (scanout->resource_id == 0) { | |
345 | return; | |
346 | } | |
347 | ||
348 | res = virtio_gpu_find_resource(g, scanout->resource_id); | |
349 | if (res) { | |
350 | res->scanout_bitmask &= ~(1 << scanout_id); | |
351 | } | |
352 | ||
353 | scanout->width = 0; | |
354 | scanout->height = 0; | |
355 | ||
1e40d198 | 356 | if (g->sock_fd >= 0) { |
d52c454a MAL |
357 | VhostUserGpuMsg msg = { |
358 | .request = VHOST_USER_GPU_SCANOUT, | |
359 | .size = sizeof(VhostUserGpuScanout), | |
360 | .payload.scanout.scanout_id = scanout_id, | |
361 | }; | |
362 | vg_send_msg(g, &msg, -1); | |
363 | } | |
364 | } | |
365 | ||
366 | static void | |
367 | vg_resource_destroy(VuGpu *g, | |
368 | struct virtio_gpu_simple_resource *res) | |
369 | { | |
370 | int i; | |
371 | ||
372 | if (res->scanout_bitmask) { | |
373 | for (i = 0; i < VIRTIO_GPU_MAX_SCANOUTS; i++) { | |
374 | if (res->scanout_bitmask & (1 << i)) { | |
375 | vg_disable_scanout(g, i); | |
376 | } | |
377 | } | |
378 | } | |
379 | ||
380 | vugbm_buffer_destroy(&res->buffer); | |
381 | pixman_image_unref(res->image); | |
382 | QTAILQ_REMOVE(&g->reslist, res, next); | |
383 | g_free(res); | |
384 | } | |
385 | ||
386 | static void | |
387 | vg_resource_unref(VuGpu *g, | |
388 | struct virtio_gpu_ctrl_command *cmd) | |
389 | { | |
390 | struct virtio_gpu_simple_resource *res; | |
391 | struct virtio_gpu_resource_unref unref; | |
392 | ||
393 | VUGPU_FILL_CMD(unref); | |
394 | virtio_gpu_bswap_32(&unref, sizeof(unref)); | |
395 | ||
396 | res = virtio_gpu_find_resource(g, unref.resource_id); | |
397 | if (!res) { | |
398 | g_critical("%s: illegal resource specified %d", | |
399 | __func__, unref.resource_id); | |
400 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
401 | return; | |
402 | } | |
403 | vg_resource_destroy(g, res); | |
404 | } | |
405 | ||
406 | int | |
407 | vg_create_mapping_iov(VuGpu *g, | |
408 | struct virtio_gpu_resource_attach_backing *ab, | |
409 | struct virtio_gpu_ctrl_command *cmd, | |
410 | struct iovec **iov) | |
411 | { | |
412 | struct virtio_gpu_mem_entry *ents; | |
413 | size_t esize, s; | |
414 | int i; | |
415 | ||
416 | if (ab->nr_entries > 16384) { | |
417 | g_critical("%s: nr_entries is too big (%d > 16384)", | |
418 | __func__, ab->nr_entries); | |
419 | return -1; | |
420 | } | |
421 | ||
422 | esize = sizeof(*ents) * ab->nr_entries; | |
423 | ents = g_malloc(esize); | |
424 | s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, | |
425 | sizeof(*ab), ents, esize); | |
426 | if (s != esize) { | |
427 | g_critical("%s: command data size incorrect %zu vs %zu", | |
428 | __func__, s, esize); | |
429 | g_free(ents); | |
430 | return -1; | |
431 | } | |
432 | ||
433 | *iov = g_malloc0(sizeof(struct iovec) * ab->nr_entries); | |
434 | for (i = 0; i < ab->nr_entries; i++) { | |
435 | uint64_t len = ents[i].length; | |
436 | (*iov)[i].iov_len = ents[i].length; | |
437 | (*iov)[i].iov_base = vu_gpa_to_va(&g->dev.parent, &len, ents[i].addr); | |
438 | if (!(*iov)[i].iov_base || len != ents[i].length) { | |
439 | g_critical("%s: resource %d element %d", | |
440 | __func__, ab->resource_id, i); | |
441 | g_free(*iov); | |
442 | g_free(ents); | |
443 | *iov = NULL; | |
444 | return -1; | |
445 | } | |
446 | } | |
447 | g_free(ents); | |
448 | return 0; | |
449 | } | |
450 | ||
451 | static void | |
452 | vg_resource_attach_backing(VuGpu *g, | |
453 | struct virtio_gpu_ctrl_command *cmd) | |
454 | { | |
455 | struct virtio_gpu_simple_resource *res; | |
456 | struct virtio_gpu_resource_attach_backing ab; | |
457 | int ret; | |
458 | ||
459 | VUGPU_FILL_CMD(ab); | |
460 | virtio_gpu_bswap_32(&ab, sizeof(ab)); | |
461 | ||
462 | res = virtio_gpu_find_resource(g, ab.resource_id); | |
463 | if (!res) { | |
464 | g_critical("%s: illegal resource specified %d", | |
465 | __func__, ab.resource_id); | |
466 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
467 | return; | |
468 | } | |
469 | ||
470 | ret = vg_create_mapping_iov(g, &ab, cmd, &res->iov); | |
471 | if (ret != 0) { | |
472 | cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; | |
473 | return; | |
474 | } | |
475 | ||
476 | res->iov_cnt = ab.nr_entries; | |
477 | } | |
478 | ||
479 | static void | |
480 | vg_resource_detach_backing(VuGpu *g, | |
481 | struct virtio_gpu_ctrl_command *cmd) | |
482 | { | |
483 | struct virtio_gpu_simple_resource *res; | |
484 | struct virtio_gpu_resource_detach_backing detach; | |
485 | ||
486 | VUGPU_FILL_CMD(detach); | |
487 | virtio_gpu_bswap_32(&detach, sizeof(detach)); | |
488 | ||
489 | res = virtio_gpu_find_resource(g, detach.resource_id); | |
490 | if (!res || !res->iov) { | |
491 | g_critical("%s: illegal resource specified %d", | |
492 | __func__, detach.resource_id); | |
493 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
494 | return; | |
495 | } | |
496 | ||
497 | g_free(res->iov); | |
498 | res->iov = NULL; | |
499 | res->iov_cnt = 0; | |
500 | } | |
501 | ||
502 | static void | |
503 | vg_transfer_to_host_2d(VuGpu *g, | |
504 | struct virtio_gpu_ctrl_command *cmd) | |
505 | { | |
506 | struct virtio_gpu_simple_resource *res; | |
507 | int h; | |
508 | uint32_t src_offset, dst_offset, stride; | |
509 | int bpp; | |
510 | pixman_format_code_t format; | |
511 | struct virtio_gpu_transfer_to_host_2d t2d; | |
512 | ||
513 | VUGPU_FILL_CMD(t2d); | |
514 | virtio_gpu_t2d_bswap(&t2d); | |
515 | ||
516 | res = virtio_gpu_find_resource(g, t2d.resource_id); | |
517 | if (!res || !res->iov) { | |
518 | g_critical("%s: illegal resource specified %d", | |
519 | __func__, t2d.resource_id); | |
520 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
521 | return; | |
522 | } | |
523 | ||
524 | if (t2d.r.x > res->width || | |
525 | t2d.r.y > res->height || | |
526 | t2d.r.width > res->width || | |
527 | t2d.r.height > res->height || | |
528 | t2d.r.x + t2d.r.width > res->width || | |
529 | t2d.r.y + t2d.r.height > res->height) { | |
530 | g_critical("%s: transfer bounds outside resource" | |
531 | " bounds for resource %d: %d %d %d %d vs %d %d", | |
532 | __func__, t2d.resource_id, t2d.r.x, t2d.r.y, | |
533 | t2d.r.width, t2d.r.height, res->width, res->height); | |
534 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; | |
535 | return; | |
536 | } | |
537 | ||
538 | format = pixman_image_get_format(res->image); | |
539 | bpp = (PIXMAN_FORMAT_BPP(format) + 7) / 8; | |
540 | stride = pixman_image_get_stride(res->image); | |
541 | ||
542 | if (t2d.offset || t2d.r.x || t2d.r.y || | |
543 | t2d.r.width != pixman_image_get_width(res->image)) { | |
544 | void *img_data = pixman_image_get_data(res->image); | |
545 | for (h = 0; h < t2d.r.height; h++) { | |
546 | src_offset = t2d.offset + stride * h; | |
547 | dst_offset = (t2d.r.y + h) * stride + (t2d.r.x * bpp); | |
548 | ||
549 | iov_to_buf(res->iov, res->iov_cnt, src_offset, | |
550 | img_data | |
551 | + dst_offset, t2d.r.width * bpp); | |
552 | } | |
553 | } else { | |
554 | iov_to_buf(res->iov, res->iov_cnt, 0, | |
555 | pixman_image_get_data(res->image), | |
556 | pixman_image_get_stride(res->image) | |
557 | * pixman_image_get_height(res->image)); | |
558 | } | |
559 | } | |
560 | ||
561 | static void | |
562 | vg_set_scanout(VuGpu *g, | |
563 | struct virtio_gpu_ctrl_command *cmd) | |
564 | { | |
565 | struct virtio_gpu_simple_resource *res, *ores; | |
566 | struct virtio_gpu_scanout *scanout; | |
567 | struct virtio_gpu_set_scanout ss; | |
568 | int fd; | |
569 | ||
570 | VUGPU_FILL_CMD(ss); | |
571 | virtio_gpu_bswap_32(&ss, sizeof(ss)); | |
572 | ||
573 | if (ss.scanout_id >= VIRTIO_GPU_MAX_SCANOUTS) { | |
574 | g_critical("%s: illegal scanout id specified %d", | |
575 | __func__, ss.scanout_id); | |
576 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID; | |
577 | return; | |
578 | } | |
579 | ||
580 | if (ss.resource_id == 0) { | |
581 | vg_disable_scanout(g, ss.scanout_id); | |
582 | return; | |
583 | } | |
584 | ||
585 | /* create a surface for this scanout */ | |
586 | res = virtio_gpu_find_resource(g, ss.resource_id); | |
587 | if (!res) { | |
588 | g_critical("%s: illegal resource specified %d", | |
589 | __func__, ss.resource_id); | |
590 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
591 | return; | |
592 | } | |
593 | ||
594 | if (ss.r.x > res->width || | |
595 | ss.r.y > res->height || | |
596 | ss.r.width > res->width || | |
597 | ss.r.height > res->height || | |
598 | ss.r.x + ss.r.width > res->width || | |
599 | ss.r.y + ss.r.height > res->height) { | |
600 | g_critical("%s: illegal scanout %d bounds for" | |
601 | " resource %d, (%d,%d)+%d,%d vs %d %d", | |
602 | __func__, ss.scanout_id, ss.resource_id, ss.r.x, ss.r.y, | |
603 | ss.r.width, ss.r.height, res->width, res->height); | |
604 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; | |
605 | return; | |
606 | } | |
607 | ||
608 | scanout = &g->scanout[ss.scanout_id]; | |
609 | ||
610 | ores = virtio_gpu_find_resource(g, scanout->resource_id); | |
611 | if (ores) { | |
612 | ores->scanout_bitmask &= ~(1 << ss.scanout_id); | |
613 | } | |
614 | ||
615 | res->scanout_bitmask |= (1 << ss.scanout_id); | |
616 | scanout->resource_id = ss.resource_id; | |
617 | scanout->x = ss.r.x; | |
618 | scanout->y = ss.r.y; | |
619 | scanout->width = ss.r.width; | |
620 | scanout->height = ss.r.height; | |
621 | ||
622 | struct vugbm_buffer *buffer = &res->buffer; | |
623 | ||
624 | if (vugbm_buffer_can_get_dmabuf_fd(buffer)) { | |
625 | VhostUserGpuMsg msg = { | |
626 | .request = VHOST_USER_GPU_DMABUF_SCANOUT, | |
627 | .size = sizeof(VhostUserGpuDMABUFScanout), | |
628 | .payload.dmabuf_scanout = (VhostUserGpuDMABUFScanout) { | |
629 | .scanout_id = ss.scanout_id, | |
630 | .x = ss.r.x, | |
631 | .y = ss.r.y, | |
632 | .width = ss.r.width, | |
633 | .height = ss.r.height, | |
634 | .fd_width = buffer->width, | |
635 | .fd_height = buffer->height, | |
636 | .fd_stride = buffer->stride, | |
637 | .fd_drm_fourcc = buffer->format | |
638 | } | |
639 | }; | |
640 | ||
641 | if (vugbm_buffer_get_dmabuf_fd(buffer, &fd)) { | |
642 | vg_send_msg(g, &msg, fd); | |
643 | close(fd); | |
644 | } | |
645 | } else { | |
646 | VhostUserGpuMsg msg = { | |
647 | .request = VHOST_USER_GPU_SCANOUT, | |
648 | .size = sizeof(VhostUserGpuScanout), | |
649 | .payload.scanout = (VhostUserGpuScanout) { | |
650 | .scanout_id = ss.scanout_id, | |
651 | .width = scanout->width, | |
652 | .height = scanout->height | |
653 | } | |
654 | }; | |
655 | vg_send_msg(g, &msg, -1); | |
656 | } | |
657 | } | |
658 | ||
659 | static void | |
660 | vg_resource_flush(VuGpu *g, | |
661 | struct virtio_gpu_ctrl_command *cmd) | |
662 | { | |
663 | struct virtio_gpu_simple_resource *res; | |
664 | struct virtio_gpu_resource_flush rf; | |
665 | pixman_region16_t flush_region; | |
666 | int i; | |
667 | ||
668 | VUGPU_FILL_CMD(rf); | |
669 | virtio_gpu_bswap_32(&rf, sizeof(rf)); | |
670 | ||
671 | res = virtio_gpu_find_resource(g, rf.resource_id); | |
672 | if (!res) { | |
673 | g_critical("%s: illegal resource specified %d\n", | |
674 | __func__, rf.resource_id); | |
675 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID; | |
676 | return; | |
677 | } | |
678 | ||
679 | if (rf.r.x > res->width || | |
680 | rf.r.y > res->height || | |
681 | rf.r.width > res->width || | |
682 | rf.r.height > res->height || | |
683 | rf.r.x + rf.r.width > res->width || | |
684 | rf.r.y + rf.r.height > res->height) { | |
685 | g_critical("%s: flush bounds outside resource" | |
686 | " bounds for resource %d: %d %d %d %d vs %d %d\n", | |
687 | __func__, rf.resource_id, rf.r.x, rf.r.y, | |
688 | rf.r.width, rf.r.height, res->width, res->height); | |
689 | cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER; | |
690 | return; | |
691 | } | |
692 | ||
693 | pixman_region_init_rect(&flush_region, | |
694 | rf.r.x, rf.r.y, rf.r.width, rf.r.height); | |
695 | for (i = 0; i < VIRTIO_GPU_MAX_SCANOUTS; i++) { | |
696 | struct virtio_gpu_scanout *scanout; | |
697 | pixman_region16_t region, finalregion; | |
698 | pixman_box16_t *extents; | |
699 | ||
700 | if (!(res->scanout_bitmask & (1 << i))) { | |
701 | continue; | |
702 | } | |
703 | scanout = &g->scanout[i]; | |
704 | ||
705 | pixman_region_init(&finalregion); | |
706 | pixman_region_init_rect(®ion, scanout->x, scanout->y, | |
707 | scanout->width, scanout->height); | |
708 | ||
709 | pixman_region_intersect(&finalregion, &flush_region, ®ion); | |
710 | ||
711 | extents = pixman_region_extents(&finalregion); | |
712 | size_t width = extents->x2 - extents->x1; | |
713 | size_t height = extents->y2 - extents->y1; | |
714 | ||
715 | if (vugbm_buffer_can_get_dmabuf_fd(&res->buffer)) { | |
716 | VhostUserGpuMsg vmsg = { | |
717 | .request = VHOST_USER_GPU_DMABUF_UPDATE, | |
718 | .size = sizeof(VhostUserGpuUpdate), | |
719 | .payload.update = (VhostUserGpuUpdate) { | |
720 | .scanout_id = i, | |
721 | .x = extents->x1, | |
722 | .y = extents->y1, | |
723 | .width = width, | |
724 | .height = height, | |
725 | } | |
726 | }; | |
727 | vg_send_msg(g, &vmsg, -1); | |
728 | vg_wait_ok(g); | |
729 | } else { | |
730 | size_t bpp = | |
731 | PIXMAN_FORMAT_BPP(pixman_image_get_format(res->image)) / 8; | |
732 | size_t size = width * height * bpp; | |
733 | ||
734 | void *p = g_malloc(VHOST_USER_GPU_HDR_SIZE + | |
735 | sizeof(VhostUserGpuUpdate) + size); | |
736 | VhostUserGpuMsg *msg = p; | |
737 | msg->request = VHOST_USER_GPU_UPDATE; | |
738 | msg->size = sizeof(VhostUserGpuUpdate) + size; | |
739 | msg->payload.update = (VhostUserGpuUpdate) { | |
740 | .scanout_id = i, | |
741 | .x = extents->x1, | |
742 | .y = extents->y1, | |
743 | .width = width, | |
744 | .height = height, | |
745 | }; | |
746 | pixman_image_t *i = | |
747 | pixman_image_create_bits(pixman_image_get_format(res->image), | |
748 | msg->payload.update.width, | |
749 | msg->payload.update.height, | |
750 | p + offsetof(VhostUserGpuMsg, | |
751 | payload.update.data), | |
752 | width * bpp); | |
753 | pixman_image_composite(PIXMAN_OP_SRC, | |
754 | res->image, NULL, i, | |
755 | extents->x1, extents->y1, | |
756 | 0, 0, 0, 0, | |
757 | width, height); | |
758 | pixman_image_unref(i); | |
759 | vg_send_msg(g, msg, -1); | |
760 | g_free(msg); | |
761 | } | |
762 | pixman_region_fini(®ion); | |
763 | pixman_region_fini(&finalregion); | |
764 | } | |
765 | pixman_region_fini(&flush_region); | |
766 | } | |
767 | ||
768 | static void | |
769 | vg_process_cmd(VuGpu *vg, struct virtio_gpu_ctrl_command *cmd) | |
770 | { | |
771 | switch (cmd->cmd_hdr.type) { | |
772 | case VIRTIO_GPU_CMD_GET_DISPLAY_INFO: | |
773 | vg_get_display_info(vg, cmd); | |
774 | break; | |
775 | case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D: | |
776 | vg_resource_create_2d(vg, cmd); | |
777 | break; | |
778 | case VIRTIO_GPU_CMD_RESOURCE_UNREF: | |
779 | vg_resource_unref(vg, cmd); | |
780 | break; | |
781 | case VIRTIO_GPU_CMD_RESOURCE_FLUSH: | |
782 | vg_resource_flush(vg, cmd); | |
783 | break; | |
784 | case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D: | |
785 | vg_transfer_to_host_2d(vg, cmd); | |
786 | break; | |
787 | case VIRTIO_GPU_CMD_SET_SCANOUT: | |
788 | vg_set_scanout(vg, cmd); | |
789 | break; | |
790 | case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING: | |
791 | vg_resource_attach_backing(vg, cmd); | |
792 | break; | |
793 | case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING: | |
794 | vg_resource_detach_backing(vg, cmd); | |
795 | break; | |
796 | /* case VIRTIO_GPU_CMD_GET_EDID: */ | |
797 | /* break */ | |
798 | default: | |
799 | g_warning("TODO handle ctrl %x\n", cmd->cmd_hdr.type); | |
800 | cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC; | |
801 | break; | |
802 | } | |
803 | if (!cmd->finished) { | |
804 | vg_ctrl_response_nodata(vg, cmd, cmd->error ? cmd->error : | |
805 | VIRTIO_GPU_RESP_OK_NODATA); | |
806 | } | |
807 | } | |
808 | ||
809 | static void | |
810 | vg_handle_ctrl(VuDev *dev, int qidx) | |
811 | { | |
812 | VuGpu *vg = container_of(dev, VuGpu, dev.parent); | |
813 | VuVirtq *vq = vu_get_queue(dev, qidx); | |
814 | struct virtio_gpu_ctrl_command *cmd = NULL; | |
815 | size_t len; | |
816 | ||
817 | for (;;) { | |
818 | if (vg->wait_ok != 0) { | |
819 | return; | |
820 | } | |
821 | ||
822 | cmd = vu_queue_pop(dev, vq, sizeof(struct virtio_gpu_ctrl_command)); | |
823 | if (!cmd) { | |
824 | break; | |
825 | } | |
826 | cmd->vq = vq; | |
827 | cmd->error = 0; | |
828 | cmd->finished = false; | |
829 | ||
830 | len = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num, | |
831 | 0, &cmd->cmd_hdr, sizeof(cmd->cmd_hdr)); | |
832 | if (len != sizeof(cmd->cmd_hdr)) { | |
833 | g_warning("%s: command size incorrect %zu vs %zu\n", | |
834 | __func__, len, sizeof(cmd->cmd_hdr)); | |
835 | } | |
836 | ||
837 | virtio_gpu_ctrl_hdr_bswap(&cmd->cmd_hdr); | |
838 | g_debug("%d %s\n", cmd->cmd_hdr.type, | |
839 | vg_cmd_to_string(cmd->cmd_hdr.type)); | |
840 | ||
841 | if (vg->virgl) { | |
842 | vg_virgl_process_cmd(vg, cmd); | |
843 | } else { | |
844 | vg_process_cmd(vg, cmd); | |
845 | } | |
846 | ||
847 | if (!cmd->finished) { | |
848 | QTAILQ_INSERT_TAIL(&vg->fenceq, cmd, next); | |
849 | vg->inflight++; | |
850 | } else { | |
851 | g_free(cmd); | |
852 | } | |
853 | } | |
854 | } | |
855 | ||
856 | static void | |
857 | update_cursor_data_simple(VuGpu *g, uint32_t resource_id, gpointer data) | |
858 | { | |
859 | struct virtio_gpu_simple_resource *res; | |
860 | ||
861 | res = virtio_gpu_find_resource(g, resource_id); | |
862 | g_return_if_fail(res != NULL); | |
863 | g_return_if_fail(pixman_image_get_width(res->image) == 64); | |
864 | g_return_if_fail(pixman_image_get_height(res->image) == 64); | |
865 | g_return_if_fail( | |
866 | PIXMAN_FORMAT_BPP(pixman_image_get_format(res->image)) == 32); | |
867 | ||
868 | memcpy(data, pixman_image_get_data(res->image), 64 * 64 * sizeof(uint32_t)); | |
869 | } | |
870 | ||
871 | static void | |
872 | vg_process_cursor_cmd(VuGpu *g, struct virtio_gpu_update_cursor *cursor) | |
873 | { | |
874 | bool move = cursor->hdr.type != VIRTIO_GPU_CMD_MOVE_CURSOR; | |
875 | ||
876 | g_debug("%s move:%d\n", G_STRFUNC, move); | |
877 | ||
878 | if (move) { | |
879 | VhostUserGpuMsg msg = { | |
880 | .request = cursor->resource_id ? | |
881 | VHOST_USER_GPU_CURSOR_POS : VHOST_USER_GPU_CURSOR_POS_HIDE, | |
882 | .size = sizeof(VhostUserGpuCursorPos), | |
883 | .payload.cursor_pos = { | |
884 | .scanout_id = cursor->pos.scanout_id, | |
885 | .x = cursor->pos.x, | |
886 | .y = cursor->pos.y, | |
887 | } | |
888 | }; | |
889 | vg_send_msg(g, &msg, -1); | |
890 | } else { | |
891 | VhostUserGpuMsg msg = { | |
892 | .request = VHOST_USER_GPU_CURSOR_UPDATE, | |
893 | .size = sizeof(VhostUserGpuCursorUpdate), | |
894 | .payload.cursor_update = { | |
895 | .pos = { | |
896 | .scanout_id = cursor->pos.scanout_id, | |
897 | .x = cursor->pos.x, | |
898 | .y = cursor->pos.y, | |
899 | }, | |
900 | .hot_x = cursor->hot_x, | |
901 | .hot_y = cursor->hot_y, | |
902 | } | |
903 | }; | |
904 | if (g->virgl) { | |
905 | vg_virgl_update_cursor_data(g, cursor->resource_id, | |
906 | msg.payload.cursor_update.data); | |
907 | } else { | |
908 | update_cursor_data_simple(g, cursor->resource_id, | |
909 | msg.payload.cursor_update.data); | |
910 | } | |
911 | vg_send_msg(g, &msg, -1); | |
912 | } | |
913 | } | |
914 | ||
915 | static void | |
916 | vg_handle_cursor(VuDev *dev, int qidx) | |
917 | { | |
918 | VuGpu *g = container_of(dev, VuGpu, dev.parent); | |
919 | VuVirtq *vq = vu_get_queue(dev, qidx); | |
920 | VuVirtqElement *elem; | |
921 | size_t len; | |
922 | struct virtio_gpu_update_cursor cursor; | |
923 | ||
924 | for (;;) { | |
925 | elem = vu_queue_pop(dev, vq, sizeof(VuVirtqElement)); | |
926 | if (!elem) { | |
927 | break; | |
928 | } | |
929 | g_debug("cursor out:%d in:%d\n", elem->out_num, elem->in_num); | |
930 | ||
931 | len = iov_to_buf(elem->out_sg, elem->out_num, | |
932 | 0, &cursor, sizeof(cursor)); | |
933 | if (len != sizeof(cursor)) { | |
934 | g_warning("%s: cursor size incorrect %zu vs %zu\n", | |
935 | __func__, len, sizeof(cursor)); | |
936 | } else { | |
937 | virtio_gpu_bswap_32(&cursor, sizeof(cursor)); | |
938 | vg_process_cursor_cmd(g, &cursor); | |
939 | } | |
940 | vu_queue_push(dev, vq, elem, 0); | |
941 | vu_queue_notify(dev, vq); | |
942 | g_free(elem); | |
943 | } | |
944 | } | |
945 | ||
946 | static void | |
947 | vg_panic(VuDev *dev, const char *msg) | |
948 | { | |
949 | g_critical("%s\n", msg); | |
950 | exit(1); | |
951 | } | |
952 | ||
953 | static void | |
954 | vg_queue_set_started(VuDev *dev, int qidx, bool started) | |
955 | { | |
956 | VuVirtq *vq = vu_get_queue(dev, qidx); | |
957 | ||
958 | g_debug("queue started %d:%d\n", qidx, started); | |
959 | ||
960 | switch (qidx) { | |
961 | case 0: | |
962 | vu_set_queue_handler(dev, vq, started ? vg_handle_ctrl : NULL); | |
963 | break; | |
964 | case 1: | |
965 | vu_set_queue_handler(dev, vq, started ? vg_handle_cursor : NULL); | |
966 | break; | |
967 | default: | |
968 | break; | |
969 | } | |
970 | } | |
971 | ||
972 | static void | |
973 | set_gpu_protocol_features(VuGpu *g) | |
974 | { | |
975 | uint64_t u64; | |
976 | VhostUserGpuMsg msg = { | |
977 | .request = VHOST_USER_GPU_GET_PROTOCOL_FEATURES | |
978 | }; | |
979 | ||
980 | assert(g->wait_ok == 0); | |
981 | vg_send_msg(g, &msg, -1); | |
982 | if (!vg_recv_msg(g, msg.request, sizeof(u64), &u64)) { | |
983 | return; | |
984 | } | |
985 | ||
986 | msg = (VhostUserGpuMsg) { | |
987 | .request = VHOST_USER_GPU_SET_PROTOCOL_FEATURES, | |
988 | .size = sizeof(uint64_t), | |
989 | .payload.u64 = 0 | |
990 | }; | |
991 | vg_send_msg(g, &msg, -1); | |
992 | } | |
993 | ||
994 | static int | |
995 | vg_process_msg(VuDev *dev, VhostUserMsg *msg, int *do_reply) | |
996 | { | |
997 | VuGpu *g = container_of(dev, VuGpu, dev.parent); | |
998 | ||
999 | switch (msg->request) { | |
1000 | case VHOST_USER_GPU_SET_SOCKET: { | |
1001 | g_return_val_if_fail(msg->fd_num == 1, 1); | |
1002 | g_return_val_if_fail(g->sock_fd == -1, 1); | |
1003 | g->sock_fd = msg->fds[0]; | |
1004 | set_gpu_protocol_features(g); | |
1005 | return 1; | |
1006 | } | |
1007 | default: | |
1008 | return 0; | |
1009 | } | |
1010 | ||
1011 | return 0; | |
1012 | } | |
1013 | ||
1014 | static uint64_t | |
1015 | vg_get_features(VuDev *dev) | |
1016 | { | |
1017 | uint64_t features = 0; | |
1018 | ||
1019 | if (opt_virgl) { | |
1020 | features |= 1 << VIRTIO_GPU_F_VIRGL; | |
1021 | } | |
1022 | ||
1023 | return features; | |
1024 | } | |
1025 | ||
1026 | static void | |
1027 | vg_set_features(VuDev *dev, uint64_t features) | |
1028 | { | |
1029 | VuGpu *g = container_of(dev, VuGpu, dev.parent); | |
1030 | bool virgl = features & (1 << VIRTIO_GPU_F_VIRGL); | |
1031 | ||
1032 | if (virgl && !g->virgl_inited) { | |
1033 | if (!vg_virgl_init(g)) { | |
1034 | vg_panic(dev, "Failed to initialize virgl"); | |
1035 | } | |
1036 | g->virgl_inited = true; | |
1037 | } | |
1038 | ||
1039 | g->virgl = virgl; | |
1040 | } | |
1041 | ||
1042 | static int | |
1043 | vg_get_config(VuDev *dev, uint8_t *config, uint32_t len) | |
1044 | { | |
1045 | VuGpu *g = container_of(dev, VuGpu, dev.parent); | |
1046 | ||
1047 | g_return_val_if_fail(len <= sizeof(struct virtio_gpu_config), -1); | |
1048 | ||
1049 | if (opt_virgl) { | |
1050 | g->virtio_config.num_capsets = vg_virgl_get_num_capsets(); | |
1051 | } | |
1052 | ||
1053 | memcpy(config, &g->virtio_config, len); | |
1054 | ||
1055 | return 0; | |
1056 | } | |
1057 | ||
1058 | static int | |
1059 | vg_set_config(VuDev *dev, const uint8_t *data, | |
1060 | uint32_t offset, uint32_t size, | |
1061 | uint32_t flags) | |
1062 | { | |
1063 | VuGpu *g = container_of(dev, VuGpu, dev.parent); | |
1064 | struct virtio_gpu_config *config = (struct virtio_gpu_config *)data; | |
1065 | ||
1066 | if (config->events_clear) { | |
1067 | g->virtio_config.events_read &= ~config->events_clear; | |
1068 | } | |
1069 | ||
1070 | return 0; | |
1071 | } | |
1072 | ||
1073 | static const VuDevIface vuiface = { | |
1074 | .set_features = vg_set_features, | |
1075 | .get_features = vg_get_features, | |
1076 | .queue_set_started = vg_queue_set_started, | |
1077 | .process_msg = vg_process_msg, | |
1078 | .get_config = vg_get_config, | |
1079 | .set_config = vg_set_config, | |
1080 | }; | |
1081 | ||
1082 | static void | |
1083 | vg_destroy(VuGpu *g) | |
1084 | { | |
1085 | struct virtio_gpu_simple_resource *res, *tmp; | |
1086 | ||
1087 | vug_deinit(&g->dev); | |
1088 | ||
1089 | vg_sock_fd_close(g); | |
1090 | ||
1091 | QTAILQ_FOREACH_SAFE(res, &g->reslist, next, tmp) { | |
1092 | vg_resource_destroy(g, res); | |
1093 | } | |
1094 | ||
1095 | vugbm_device_destroy(&g->gdev); | |
1096 | } | |
1097 | ||
1098 | static GOptionEntry entries[] = { | |
1099 | { "print-capabilities", 'c', 0, G_OPTION_ARG_NONE, &opt_print_caps, | |
1100 | "Print capabilities", NULL }, | |
1101 | { "fd", 'f', 0, G_OPTION_ARG_INT, &opt_fdnum, | |
1102 | "Use inherited fd socket", "FDNUM" }, | |
1103 | { "socket-path", 's', 0, G_OPTION_ARG_FILENAME, &opt_socket_path, | |
1104 | "Use UNIX socket path", "PATH" }, | |
1105 | { "render-node", 'r', 0, G_OPTION_ARG_FILENAME, &opt_render_node, | |
1106 | "Specify DRM render node", "PATH" }, | |
1107 | { "virgl", 'v', 0, G_OPTION_ARG_NONE, &opt_virgl, | |
1108 | "Turn virgl rendering on", NULL }, | |
1109 | { NULL, } | |
1110 | }; | |
1111 | ||
1112 | int | |
1113 | main(int argc, char *argv[]) | |
1114 | { | |
1115 | GOptionContext *context; | |
1116 | GError *error = NULL; | |
1117 | GMainLoop *loop = NULL; | |
1118 | int fd; | |
1119 | VuGpu g = { .sock_fd = -1, .drm_rnode_fd = -1 }; | |
1120 | ||
1121 | QTAILQ_INIT(&g.reslist); | |
1122 | QTAILQ_INIT(&g.fenceq); | |
1123 | ||
1124 | context = g_option_context_new("QEMU vhost-user-gpu"); | |
1125 | g_option_context_add_main_entries(context, entries, NULL); | |
1126 | if (!g_option_context_parse(context, &argc, &argv, &error)) { | |
1127 | g_printerr("Option parsing failed: %s\n", error->message); | |
1128 | exit(EXIT_FAILURE); | |
1129 | } | |
1130 | g_option_context_free(context); | |
1131 | ||
1132 | if (opt_print_caps) { | |
1133 | g_print("{\n"); | |
1134 | g_print(" \"type\": \"gpu\",\n"); | |
1135 | g_print(" \"features\": [\n"); | |
1136 | g_print(" \"render-node\",\n"); | |
1137 | g_print(" \"virgl\"\n"); | |
1138 | g_print(" ]\n"); | |
1139 | g_print("}\n"); | |
1140 | exit(EXIT_SUCCESS); | |
1141 | } | |
1142 | ||
1143 | g.drm_rnode_fd = qemu_drm_rendernode_open(opt_render_node); | |
1144 | if (opt_render_node && g.drm_rnode_fd == -1) { | |
1145 | g_printerr("Failed to open DRM rendernode.\n"); | |
1146 | exit(EXIT_FAILURE); | |
1147 | } | |
1148 | ||
1149 | if (g.drm_rnode_fd >= 0) { | |
1150 | if (!vugbm_device_init(&g.gdev, g.drm_rnode_fd)) { | |
1151 | g_warning("Failed to init DRM device, using fallback path"); | |
1152 | } | |
1153 | } | |
1154 | ||
1155 | if ((!!opt_socket_path + (opt_fdnum != -1)) != 1) { | |
1156 | g_printerr("Please specify either --fd or --socket-path\n"); | |
1157 | exit(EXIT_FAILURE); | |
1158 | } | |
1159 | ||
1160 | if (opt_socket_path) { | |
1161 | int lsock = unix_listen(opt_socket_path, &error_fatal); | |
24af03b9 MAL |
1162 | if (lsock < 0) { |
1163 | g_printerr("Failed to listen on %s.\n", opt_socket_path); | |
1164 | exit(EXIT_FAILURE); | |
1165 | } | |
d52c454a MAL |
1166 | fd = accept(lsock, NULL, NULL); |
1167 | close(lsock); | |
1168 | } else { | |
1169 | fd = opt_fdnum; | |
1170 | } | |
1171 | if (fd == -1) { | |
f55411cf | 1172 | g_printerr("Invalid vhost-user socket.\n"); |
d52c454a MAL |
1173 | exit(EXIT_FAILURE); |
1174 | } | |
1175 | ||
6f5fd837 SH |
1176 | if (!vug_init(&g.dev, VHOST_USER_GPU_MAX_QUEUES, fd, vg_panic, &vuiface)) { |
1177 | g_printerr("Failed to initialize libvhost-user-glib.\n"); | |
1178 | exit(EXIT_FAILURE); | |
1179 | } | |
d52c454a MAL |
1180 | |
1181 | loop = g_main_loop_new(NULL, FALSE); | |
1182 | g_main_loop_run(loop); | |
1183 | g_main_loop_unref(loop); | |
1184 | ||
1185 | vg_destroy(&g); | |
1186 | if (g.drm_rnode_fd >= 0) { | |
1187 | close(g.drm_rnode_fd); | |
1188 | } | |
1189 | ||
1190 | return 0; | |
1191 | } |