xref: /openbmc/qemu/hw/display/virtio-gpu-virgl.c (revision 243975c0)
1 /*
2  * Virtio GPU Device
3  *
4  * Copyright Red Hat, Inc. 2013-2014
5  *
6  * Authors:
7  *     Dave Airlie <airlied@redhat.com>
8  *     Gerd Hoffmann <kraxel@redhat.com>
9  *
10  * This work is licensed under the terms of the GNU GPL, version 2 or later.
11  * See the COPYING file in the top-level directory.
12  */
13 
14 #include "qemu/osdep.h"
15 #include "qemu/error-report.h"
16 #include "qemu/iov.h"
17 #include "trace.h"
18 #include "hw/virtio/virtio.h"
19 #include "hw/virtio/virtio-gpu.h"
20 
21 #include "ui/egl-helpers.h"
22 
23 #include <virglrenderer.h>
24 
25 #if VIRGL_RENDERER_CALLBACKS_VERSION >= 4
26 static void *
27 virgl_get_egl_display(G_GNUC_UNUSED void *cookie)
28 {
29     return qemu_egl_display;
30 }
31 #endif
32 
33 static void virgl_cmd_create_resource_2d(VirtIOGPU *g,
34                                          struct virtio_gpu_ctrl_command *cmd)
35 {
36     struct virtio_gpu_resource_create_2d c2d;
37     struct virgl_renderer_resource_create_args args;
38 
39     VIRTIO_GPU_FILL_CMD(c2d);
40     trace_virtio_gpu_cmd_res_create_2d(c2d.resource_id, c2d.format,
41                                        c2d.width, c2d.height);
42 
43     args.handle = c2d.resource_id;
44     args.target = 2;
45     args.format = c2d.format;
46     args.bind = (1 << 1);
47     args.width = c2d.width;
48     args.height = c2d.height;
49     args.depth = 1;
50     args.array_size = 1;
51     args.last_level = 0;
52     args.nr_samples = 0;
53     args.flags = VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP;
54     virgl_renderer_resource_create(&args, NULL, 0);
55 }
56 
57 static void virgl_cmd_create_resource_3d(VirtIOGPU *g,
58                                          struct virtio_gpu_ctrl_command *cmd)
59 {
60     struct virtio_gpu_resource_create_3d c3d;
61     struct virgl_renderer_resource_create_args args;
62 
63     VIRTIO_GPU_FILL_CMD(c3d);
64     trace_virtio_gpu_cmd_res_create_3d(c3d.resource_id, c3d.format,
65                                        c3d.width, c3d.height, c3d.depth);
66 
67     args.handle = c3d.resource_id;
68     args.target = c3d.target;
69     args.format = c3d.format;
70     args.bind = c3d.bind;
71     args.width = c3d.width;
72     args.height = c3d.height;
73     args.depth = c3d.depth;
74     args.array_size = c3d.array_size;
75     args.last_level = c3d.last_level;
76     args.nr_samples = c3d.nr_samples;
77     args.flags = c3d.flags;
78     virgl_renderer_resource_create(&args, NULL, 0);
79 }
80 
81 static void virgl_cmd_resource_unref(VirtIOGPU *g,
82                                      struct virtio_gpu_ctrl_command *cmd)
83 {
84     struct virtio_gpu_resource_unref unref;
85     struct iovec *res_iovs = NULL;
86     int num_iovs = 0;
87 
88     VIRTIO_GPU_FILL_CMD(unref);
89     trace_virtio_gpu_cmd_res_unref(unref.resource_id);
90 
91     virgl_renderer_resource_detach_iov(unref.resource_id,
92                                        &res_iovs,
93                                        &num_iovs);
94     if (res_iovs != NULL && num_iovs != 0) {
95         virtio_gpu_cleanup_mapping_iov(g, res_iovs, num_iovs);
96     }
97     virgl_renderer_resource_unref(unref.resource_id);
98 }
99 
100 static void virgl_cmd_context_create(VirtIOGPU *g,
101                                      struct virtio_gpu_ctrl_command *cmd)
102 {
103     struct virtio_gpu_ctx_create cc;
104 
105     VIRTIO_GPU_FILL_CMD(cc);
106     trace_virtio_gpu_cmd_ctx_create(cc.hdr.ctx_id,
107                                     cc.debug_name);
108 
109     virgl_renderer_context_create(cc.hdr.ctx_id, cc.nlen,
110                                   cc.debug_name);
111 }
112 
113 static void virgl_cmd_context_destroy(VirtIOGPU *g,
114                                       struct virtio_gpu_ctrl_command *cmd)
115 {
116     struct virtio_gpu_ctx_destroy cd;
117 
118     VIRTIO_GPU_FILL_CMD(cd);
119     trace_virtio_gpu_cmd_ctx_destroy(cd.hdr.ctx_id);
120 
121     virgl_renderer_context_destroy(cd.hdr.ctx_id);
122 }
123 
124 static void virtio_gpu_rect_update(VirtIOGPU *g, int idx, int x, int y,
125                                 int width, int height)
126 {
127     if (!g->parent_obj.scanout[idx].con) {
128         return;
129     }
130 
131     dpy_gl_update(g->parent_obj.scanout[idx].con, x, y, width, height);
132 }
133 
134 static void virgl_cmd_resource_flush(VirtIOGPU *g,
135                                      struct virtio_gpu_ctrl_command *cmd)
136 {
137     struct virtio_gpu_resource_flush rf;
138     int i;
139 
140     VIRTIO_GPU_FILL_CMD(rf);
141     trace_virtio_gpu_cmd_res_flush(rf.resource_id,
142                                    rf.r.width, rf.r.height, rf.r.x, rf.r.y);
143 
144     for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
145         if (g->parent_obj.scanout[i].resource_id != rf.resource_id) {
146             continue;
147         }
148         virtio_gpu_rect_update(g, i, rf.r.x, rf.r.y, rf.r.width, rf.r.height);
149     }
150 }
151 
152 static void virgl_cmd_set_scanout(VirtIOGPU *g,
153                                   struct virtio_gpu_ctrl_command *cmd)
154 {
155     struct virtio_gpu_set_scanout ss;
156     int ret;
157 
158     VIRTIO_GPU_FILL_CMD(ss);
159     trace_virtio_gpu_cmd_set_scanout(ss.scanout_id, ss.resource_id,
160                                      ss.r.width, ss.r.height, ss.r.x, ss.r.y);
161 
162     if (ss.scanout_id >= g->parent_obj.conf.max_outputs) {
163         qemu_log_mask(LOG_GUEST_ERROR, "%s: illegal scanout id specified %d",
164                       __func__, ss.scanout_id);
165         cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_SCANOUT_ID;
166         return;
167     }
168     g->parent_obj.enable = 1;
169 
170     if (ss.resource_id && ss.r.width && ss.r.height) {
171         struct virgl_renderer_resource_info info;
172         void *d3d_tex2d = NULL;
173 
174 #ifdef HAVE_VIRGL_D3D_INFO_EXT
175         struct virgl_renderer_resource_info_ext ext;
176         memset(&ext, 0, sizeof(ext));
177         ret = virgl_renderer_resource_get_info_ext(ss.resource_id, &ext);
178         info = ext.base;
179         d3d_tex2d = ext.d3d_tex2d;
180 #else
181         memset(&info, 0, sizeof(info));
182         ret = virgl_renderer_resource_get_info(ss.resource_id, &info);
183 #endif
184         if (ret == -1) {
185             qemu_log_mask(LOG_GUEST_ERROR,
186                           "%s: illegal resource specified %d\n",
187                           __func__, ss.resource_id);
188             cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_RESOURCE_ID;
189             return;
190         }
191         qemu_console_resize(g->parent_obj.scanout[ss.scanout_id].con,
192                             ss.r.width, ss.r.height);
193         virgl_renderer_force_ctx_0();
194         dpy_gl_scanout_texture(
195             g->parent_obj.scanout[ss.scanout_id].con, info.tex_id,
196             info.flags & VIRTIO_GPU_RESOURCE_FLAG_Y_0_TOP,
197             info.width, info.height,
198             ss.r.x, ss.r.y, ss.r.width, ss.r.height,
199             d3d_tex2d);
200     } else {
201         dpy_gfx_replace_surface(
202             g->parent_obj.scanout[ss.scanout_id].con, NULL);
203         dpy_gl_scanout_disable(g->parent_obj.scanout[ss.scanout_id].con);
204     }
205     g->parent_obj.scanout[ss.scanout_id].resource_id = ss.resource_id;
206 }
207 
208 static void virgl_cmd_submit_3d(VirtIOGPU *g,
209                                 struct virtio_gpu_ctrl_command *cmd)
210 {
211     struct virtio_gpu_cmd_submit cs;
212     void *buf;
213     size_t s;
214 
215     VIRTIO_GPU_FILL_CMD(cs);
216     trace_virtio_gpu_cmd_ctx_submit(cs.hdr.ctx_id, cs.size);
217 
218     buf = g_malloc(cs.size);
219     s = iov_to_buf(cmd->elem.out_sg, cmd->elem.out_num,
220                    sizeof(cs), buf, cs.size);
221     if (s != cs.size) {
222         qemu_log_mask(LOG_GUEST_ERROR, "%s: size mismatch (%zd/%d)",
223                       __func__, s, cs.size);
224         cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
225         goto out;
226     }
227 
228     if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
229         g->stats.req_3d++;
230         g->stats.bytes_3d += cs.size;
231     }
232 
233     virgl_renderer_submit_cmd(buf, cs.hdr.ctx_id, cs.size / 4);
234 
235 out:
236     g_free(buf);
237 }
238 
239 static void virgl_cmd_transfer_to_host_2d(VirtIOGPU *g,
240                                           struct virtio_gpu_ctrl_command *cmd)
241 {
242     struct virtio_gpu_transfer_to_host_2d t2d;
243     struct virtio_gpu_box box;
244 
245     VIRTIO_GPU_FILL_CMD(t2d);
246     trace_virtio_gpu_cmd_res_xfer_toh_2d(t2d.resource_id);
247 
248     box.x = t2d.r.x;
249     box.y = t2d.r.y;
250     box.z = 0;
251     box.w = t2d.r.width;
252     box.h = t2d.r.height;
253     box.d = 1;
254 
255     virgl_renderer_transfer_write_iov(t2d.resource_id,
256                                       0,
257                                       0,
258                                       0,
259                                       0,
260                                       (struct virgl_box *)&box,
261                                       t2d.offset, NULL, 0);
262 }
263 
264 static void virgl_cmd_transfer_to_host_3d(VirtIOGPU *g,
265                                           struct virtio_gpu_ctrl_command *cmd)
266 {
267     struct virtio_gpu_transfer_host_3d t3d;
268 
269     VIRTIO_GPU_FILL_CMD(t3d);
270     trace_virtio_gpu_cmd_res_xfer_toh_3d(t3d.resource_id);
271 
272     virgl_renderer_transfer_write_iov(t3d.resource_id,
273                                       t3d.hdr.ctx_id,
274                                       t3d.level,
275                                       t3d.stride,
276                                       t3d.layer_stride,
277                                       (struct virgl_box *)&t3d.box,
278                                       t3d.offset, NULL, 0);
279 }
280 
281 static void
282 virgl_cmd_transfer_from_host_3d(VirtIOGPU *g,
283                                 struct virtio_gpu_ctrl_command *cmd)
284 {
285     struct virtio_gpu_transfer_host_3d tf3d;
286 
287     VIRTIO_GPU_FILL_CMD(tf3d);
288     trace_virtio_gpu_cmd_res_xfer_fromh_3d(tf3d.resource_id);
289 
290     virgl_renderer_transfer_read_iov(tf3d.resource_id,
291                                      tf3d.hdr.ctx_id,
292                                      tf3d.level,
293                                      tf3d.stride,
294                                      tf3d.layer_stride,
295                                      (struct virgl_box *)&tf3d.box,
296                                      tf3d.offset, NULL, 0);
297 }
298 
299 
300 static void virgl_resource_attach_backing(VirtIOGPU *g,
301                                           struct virtio_gpu_ctrl_command *cmd)
302 {
303     struct virtio_gpu_resource_attach_backing att_rb;
304     struct iovec *res_iovs;
305     uint32_t res_niov;
306     int ret;
307 
308     VIRTIO_GPU_FILL_CMD(att_rb);
309     trace_virtio_gpu_cmd_res_back_attach(att_rb.resource_id);
310 
311     ret = virtio_gpu_create_mapping_iov(g, att_rb.nr_entries, sizeof(att_rb),
312                                         cmd, NULL, &res_iovs, &res_niov);
313     if (ret != 0) {
314         cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
315         return;
316     }
317 
318     ret = virgl_renderer_resource_attach_iov(att_rb.resource_id,
319                                              res_iovs, res_niov);
320 
321     if (ret != 0)
322         virtio_gpu_cleanup_mapping_iov(g, res_iovs, res_niov);
323 }
324 
325 static void virgl_resource_detach_backing(VirtIOGPU *g,
326                                           struct virtio_gpu_ctrl_command *cmd)
327 {
328     struct virtio_gpu_resource_detach_backing detach_rb;
329     struct iovec *res_iovs = NULL;
330     int num_iovs = 0;
331 
332     VIRTIO_GPU_FILL_CMD(detach_rb);
333     trace_virtio_gpu_cmd_res_back_detach(detach_rb.resource_id);
334 
335     virgl_renderer_resource_detach_iov(detach_rb.resource_id,
336                                        &res_iovs,
337                                        &num_iovs);
338     if (res_iovs == NULL || num_iovs == 0) {
339         return;
340     }
341     virtio_gpu_cleanup_mapping_iov(g, res_iovs, num_iovs);
342 }
343 
344 
345 static void virgl_cmd_ctx_attach_resource(VirtIOGPU *g,
346                                           struct virtio_gpu_ctrl_command *cmd)
347 {
348     struct virtio_gpu_ctx_resource att_res;
349 
350     VIRTIO_GPU_FILL_CMD(att_res);
351     trace_virtio_gpu_cmd_ctx_res_attach(att_res.hdr.ctx_id,
352                                         att_res.resource_id);
353 
354     virgl_renderer_ctx_attach_resource(att_res.hdr.ctx_id, att_res.resource_id);
355 }
356 
357 static void virgl_cmd_ctx_detach_resource(VirtIOGPU *g,
358                                           struct virtio_gpu_ctrl_command *cmd)
359 {
360     struct virtio_gpu_ctx_resource det_res;
361 
362     VIRTIO_GPU_FILL_CMD(det_res);
363     trace_virtio_gpu_cmd_ctx_res_detach(det_res.hdr.ctx_id,
364                                         det_res.resource_id);
365 
366     virgl_renderer_ctx_detach_resource(det_res.hdr.ctx_id, det_res.resource_id);
367 }
368 
369 static void virgl_cmd_get_capset_info(VirtIOGPU *g,
370                                       struct virtio_gpu_ctrl_command *cmd)
371 {
372     struct virtio_gpu_get_capset_info info;
373     struct virtio_gpu_resp_capset_info resp;
374 
375     VIRTIO_GPU_FILL_CMD(info);
376 
377     memset(&resp, 0, sizeof(resp));
378     if (info.capset_index == 0) {
379         resp.capset_id = VIRTIO_GPU_CAPSET_VIRGL;
380         virgl_renderer_get_cap_set(resp.capset_id,
381                                    &resp.capset_max_version,
382                                    &resp.capset_max_size);
383     } else if (info.capset_index == 1) {
384         resp.capset_id = VIRTIO_GPU_CAPSET_VIRGL2;
385         virgl_renderer_get_cap_set(resp.capset_id,
386                                    &resp.capset_max_version,
387                                    &resp.capset_max_size);
388     } else {
389         resp.capset_max_version = 0;
390         resp.capset_max_size = 0;
391     }
392     resp.hdr.type = VIRTIO_GPU_RESP_OK_CAPSET_INFO;
393     virtio_gpu_ctrl_response(g, cmd, &resp.hdr, sizeof(resp));
394 }
395 
396 static void virgl_cmd_get_capset(VirtIOGPU *g,
397                                  struct virtio_gpu_ctrl_command *cmd)
398 {
399     struct virtio_gpu_get_capset gc;
400     struct virtio_gpu_resp_capset *resp;
401     uint32_t max_ver, max_size;
402     VIRTIO_GPU_FILL_CMD(gc);
403 
404     virgl_renderer_get_cap_set(gc.capset_id, &max_ver,
405                                &max_size);
406     if (!max_size) {
407         cmd->error = VIRTIO_GPU_RESP_ERR_INVALID_PARAMETER;
408         return;
409     }
410 
411     resp = g_malloc0(sizeof(*resp) + max_size);
412     resp->hdr.type = VIRTIO_GPU_RESP_OK_CAPSET;
413     virgl_renderer_fill_caps(gc.capset_id,
414                              gc.capset_version,
415                              (void *)resp->capset_data);
416     virtio_gpu_ctrl_response(g, cmd, &resp->hdr, sizeof(*resp) + max_size);
417     g_free(resp);
418 }
419 
420 void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
421                                       struct virtio_gpu_ctrl_command *cmd)
422 {
423     VIRTIO_GPU_FILL_CMD(cmd->cmd_hdr);
424 
425     virgl_renderer_force_ctx_0();
426     switch (cmd->cmd_hdr.type) {
427     case VIRTIO_GPU_CMD_CTX_CREATE:
428         virgl_cmd_context_create(g, cmd);
429         break;
430     case VIRTIO_GPU_CMD_CTX_DESTROY:
431         virgl_cmd_context_destroy(g, cmd);
432         break;
433     case VIRTIO_GPU_CMD_RESOURCE_CREATE_2D:
434         virgl_cmd_create_resource_2d(g, cmd);
435         break;
436     case VIRTIO_GPU_CMD_RESOURCE_CREATE_3D:
437         virgl_cmd_create_resource_3d(g, cmd);
438         break;
439     case VIRTIO_GPU_CMD_SUBMIT_3D:
440         virgl_cmd_submit_3d(g, cmd);
441         break;
442     case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D:
443         virgl_cmd_transfer_to_host_2d(g, cmd);
444         break;
445     case VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D:
446         virgl_cmd_transfer_to_host_3d(g, cmd);
447         break;
448     case VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D:
449         virgl_cmd_transfer_from_host_3d(g, cmd);
450         break;
451     case VIRTIO_GPU_CMD_RESOURCE_ATTACH_BACKING:
452         virgl_resource_attach_backing(g, cmd);
453         break;
454     case VIRTIO_GPU_CMD_RESOURCE_DETACH_BACKING:
455         virgl_resource_detach_backing(g, cmd);
456         break;
457     case VIRTIO_GPU_CMD_SET_SCANOUT:
458         virgl_cmd_set_scanout(g, cmd);
459         break;
460     case VIRTIO_GPU_CMD_RESOURCE_FLUSH:
461         virgl_cmd_resource_flush(g, cmd);
462         break;
463     case VIRTIO_GPU_CMD_RESOURCE_UNREF:
464         virgl_cmd_resource_unref(g, cmd);
465         break;
466     case VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE:
467         /* TODO add security */
468         virgl_cmd_ctx_attach_resource(g, cmd);
469         break;
470     case VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE:
471         /* TODO add security */
472         virgl_cmd_ctx_detach_resource(g, cmd);
473         break;
474     case VIRTIO_GPU_CMD_GET_CAPSET_INFO:
475         virgl_cmd_get_capset_info(g, cmd);
476         break;
477     case VIRTIO_GPU_CMD_GET_CAPSET:
478         virgl_cmd_get_capset(g, cmd);
479         break;
480     case VIRTIO_GPU_CMD_GET_DISPLAY_INFO:
481         virtio_gpu_get_display_info(g, cmd);
482         break;
483     case VIRTIO_GPU_CMD_GET_EDID:
484         virtio_gpu_get_edid(g, cmd);
485         break;
486     default:
487         cmd->error = VIRTIO_GPU_RESP_ERR_UNSPEC;
488         break;
489     }
490 
491     if (cmd->finished) {
492         return;
493     }
494     if (cmd->error) {
495         fprintf(stderr, "%s: ctrl 0x%x, error 0x%x\n", __func__,
496                 cmd->cmd_hdr.type, cmd->error);
497         virtio_gpu_ctrl_response_nodata(g, cmd, cmd->error);
498         return;
499     }
500     if (!(cmd->cmd_hdr.flags & VIRTIO_GPU_FLAG_FENCE)) {
501         virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
502         return;
503     }
504 
505     trace_virtio_gpu_fence_ctrl(cmd->cmd_hdr.fence_id, cmd->cmd_hdr.type);
506     virgl_renderer_create_fence(cmd->cmd_hdr.fence_id, cmd->cmd_hdr.type);
507 }
508 
509 static void virgl_write_fence(void *opaque, uint32_t fence)
510 {
511     VirtIOGPU *g = opaque;
512     struct virtio_gpu_ctrl_command *cmd, *tmp;
513 
514     QTAILQ_FOREACH_SAFE(cmd, &g->fenceq, next, tmp) {
515         /*
516          * the guest can end up emitting fences out of order
517          * so we should check all fenced cmds not just the first one.
518          */
519         if (cmd->cmd_hdr.fence_id > fence) {
520             continue;
521         }
522         trace_virtio_gpu_fence_resp(cmd->cmd_hdr.fence_id);
523         virtio_gpu_ctrl_response_nodata(g, cmd, VIRTIO_GPU_RESP_OK_NODATA);
524         QTAILQ_REMOVE(&g->fenceq, cmd, next);
525         g_free(cmd);
526         g->inflight--;
527         if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
528             fprintf(stderr, "inflight: %3d (-)\r", g->inflight);
529         }
530     }
531 }
532 
533 static virgl_renderer_gl_context
534 virgl_create_context(void *opaque, int scanout_idx,
535                      struct virgl_renderer_gl_ctx_param *params)
536 {
537     VirtIOGPU *g = opaque;
538     QEMUGLContext ctx;
539     QEMUGLParams qparams;
540 
541     qparams.major_ver = params->major_ver;
542     qparams.minor_ver = params->minor_ver;
543 
544     ctx = dpy_gl_ctx_create(g->parent_obj.scanout[scanout_idx].con, &qparams);
545     return (virgl_renderer_gl_context)ctx;
546 }
547 
548 static void virgl_destroy_context(void *opaque, virgl_renderer_gl_context ctx)
549 {
550     VirtIOGPU *g = opaque;
551     QEMUGLContext qctx = (QEMUGLContext)ctx;
552 
553     dpy_gl_ctx_destroy(g->parent_obj.scanout[0].con, qctx);
554 }
555 
556 static int virgl_make_context_current(void *opaque, int scanout_idx,
557                                       virgl_renderer_gl_context ctx)
558 {
559     VirtIOGPU *g = opaque;
560     QEMUGLContext qctx = (QEMUGLContext)ctx;
561 
562     return dpy_gl_ctx_make_current(g->parent_obj.scanout[scanout_idx].con,
563                                    qctx);
564 }
565 
566 static struct virgl_renderer_callbacks virtio_gpu_3d_cbs = {
567     .version             = 1,
568     .write_fence         = virgl_write_fence,
569     .create_gl_context   = virgl_create_context,
570     .destroy_gl_context  = virgl_destroy_context,
571     .make_current        = virgl_make_context_current,
572 };
573 
574 static void virtio_gpu_print_stats(void *opaque)
575 {
576     VirtIOGPU *g = opaque;
577 
578     if (g->stats.requests) {
579         fprintf(stderr, "stats: vq req %4d, %3d -- 3D %4d (%5d)\n",
580                 g->stats.requests,
581                 g->stats.max_inflight,
582                 g->stats.req_3d,
583                 g->stats.bytes_3d);
584         g->stats.requests     = 0;
585         g->stats.max_inflight = 0;
586         g->stats.req_3d       = 0;
587         g->stats.bytes_3d     = 0;
588     } else {
589         fprintf(stderr, "stats: idle\r");
590     }
591     timer_mod(g->print_stats, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 1000);
592 }
593 
594 static void virtio_gpu_fence_poll(void *opaque)
595 {
596     VirtIOGPU *g = opaque;
597 
598     virgl_renderer_poll();
599     virtio_gpu_process_cmdq(g);
600     if (!QTAILQ_EMPTY(&g->cmdq) || !QTAILQ_EMPTY(&g->fenceq)) {
601         timer_mod(g->fence_poll, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 10);
602     }
603 }
604 
605 void virtio_gpu_virgl_fence_poll(VirtIOGPU *g)
606 {
607     virtio_gpu_fence_poll(g);
608 }
609 
610 void virtio_gpu_virgl_reset_scanout(VirtIOGPU *g)
611 {
612     int i;
613 
614     for (i = 0; i < g->parent_obj.conf.max_outputs; i++) {
615         dpy_gfx_replace_surface(g->parent_obj.scanout[i].con, NULL);
616         dpy_gl_scanout_disable(g->parent_obj.scanout[i].con);
617     }
618 }
619 
620 void virtio_gpu_virgl_reset(VirtIOGPU *g)
621 {
622     virgl_renderer_reset();
623 }
624 
625 int virtio_gpu_virgl_init(VirtIOGPU *g)
626 {
627     int ret;
628     uint32_t flags = 0;
629 
630 #if VIRGL_RENDERER_CALLBACKS_VERSION >= 4
631     if (qemu_egl_display) {
632         virtio_gpu_3d_cbs.version = 4;
633         virtio_gpu_3d_cbs.get_egl_display = virgl_get_egl_display;
634     }
635 #endif
636 #ifdef VIRGL_RENDERER_D3D11_SHARE_TEXTURE
637     if (qemu_egl_angle_d3d) {
638         flags |= VIRGL_RENDERER_D3D11_SHARE_TEXTURE;
639     }
640 #endif
641 
642     ret = virgl_renderer_init(g, flags, &virtio_gpu_3d_cbs);
643     if (ret != 0) {
644         error_report("virgl could not be initialized: %d", ret);
645         return ret;
646     }
647 
648     g->fence_poll = timer_new_ms(QEMU_CLOCK_VIRTUAL,
649                                  virtio_gpu_fence_poll, g);
650 
651     if (virtio_gpu_stats_enabled(g->parent_obj.conf)) {
652         g->print_stats = timer_new_ms(QEMU_CLOCK_VIRTUAL,
653                                       virtio_gpu_print_stats, g);
654         timer_mod(g->print_stats, qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + 1000);
655     }
656     return 0;
657 }
658 
659 int virtio_gpu_virgl_get_num_capsets(VirtIOGPU *g)
660 {
661     uint32_t capset2_max_ver, capset2_max_size;
662     virgl_renderer_get_cap_set(VIRTIO_GPU_CAPSET_VIRGL2,
663                               &capset2_max_ver,
664                               &capset2_max_size);
665 
666     return capset2_max_ver ? 2 : 1;
667 }
668