2 * Copyright 2012 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
40 #include <xf86atomic.h>
41 #include "libdrm_macros.h"
42 #include "libdrm_lists.h"
43 #include "nouveau_drm.h"
49 drm_private uint32_t nouveau_debug = 0;
52 debug_init(char *args)
55 int n = strtol(args, NULL, 0);
63 nouveau_object_mthd(struct nouveau_object *obj,
64 uint32_t mthd, void *data, uint32_t size)
70 nouveau_object_fini(struct nouveau_object *obj)
81 nouveau_object_init(struct nouveau_object *parent, uint32_t handle,
82 int32_t oclass, void *data, uint32_t size,
83 struct nouveau_object *obj)
85 int (*func)(struct nouveau_object *);
94 abi16_object(obj, &func);
96 obj->length = size ? size : sizeof(struct nouveau_object *);
97 if (!(obj->data = malloc(obj->length)))
100 memcpy(obj->data, data, obj->length);
101 *(struct nouveau_object **)obj->data = obj;
107 nouveau_object_fini(obj);
115 nouveau_object_new(struct nouveau_object *parent, uint64_t handle,
116 uint32_t oclass, void *data, uint32_t length,
117 struct nouveau_object **pobj)
119 struct nouveau_object *obj;
122 if (!(obj = malloc(sizeof(*obj))))
125 ret = nouveau_object_init(parent, handle, oclass, data, length, obj);
136 nouveau_object_del(struct nouveau_object **pobj)
138 struct nouveau_object *obj = *pobj;
140 nouveau_object_fini(obj);
147 nouveau_object_find(struct nouveau_object *obj, uint32_t pclass)
149 while (obj && obj->oclass != pclass) {
151 if (pclass == NOUVEAU_PARENT_CLASS)
157 /* this is the old libdrm's version of nouveau_device_wrap(), the symbol
158 * is kept here to prevent AIGLX from crashing if the DDX is linked against
159 * the new libdrm, but the DRI driver against the old
162 nouveau_device_open_existing(struct nouveau_device **pdev, int close, int fd,
169 nouveau_device_wrap(int fd, int close, struct nouveau_device **pdev)
171 struct nouveau_device_priv *nvdev = calloc(1, sizeof(*nvdev));
172 struct nouveau_device *dev = &nvdev->base;
173 uint64_t chipset, vram, gart, bousage;
179 debug_init(getenv("NOUVEAU_LIBDRM_DEBUG"));
184 ret = pthread_mutex_init(&nvdev->lock, NULL);
192 ver = drmGetVersion(fd);
193 if (ver) dev->drm_version = (ver->version_major << 24) |
194 (ver->version_minor << 8) |
195 ver->version_patchlevel;
198 if ( dev->drm_version != 0x00000010 &&
199 (dev->drm_version < 0x01000000 ||
200 dev->drm_version >= 0x02000000)) {
201 nouveau_device_del(&dev);
205 ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_CHIPSET_ID, &chipset);
207 ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_FB_SIZE, &vram);
209 ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_AGP_SIZE, &gart);
211 nouveau_device_del(&dev);
215 ret = nouveau_getparam(dev, NOUVEAU_GETPARAM_HAS_BO_USAGE, &bousage);
217 nvdev->have_bo_usage = (bousage != 0);
219 nvdev->close = close;
221 tmp = getenv("NOUVEAU_LIBDRM_VRAM_LIMIT_PERCENT");
223 nvdev->vram_limit_percent = atoi(tmp);
225 nvdev->vram_limit_percent = 80;
226 tmp = getenv("NOUVEAU_LIBDRM_GART_LIMIT_PERCENT");
228 nvdev->gart_limit_percent = atoi(tmp);
230 nvdev->gart_limit_percent = 80;
231 DRMINITLISTHEAD(&nvdev->bo_list);
232 nvdev->base.object.oclass = NOUVEAU_DEVICE_CLASS;
233 nvdev->base.object.length = ~0;
234 nvdev->base.lib_version = 0x01000000;
235 nvdev->base.chipset = chipset;
236 nvdev->base.vram_size = vram;
237 nvdev->base.gart_size = gart;
238 nvdev->base.vram_limit =
239 (nvdev->base.vram_size * nvdev->vram_limit_percent) / 100;
240 nvdev->base.gart_limit =
241 (nvdev->base.gart_size * nvdev->gart_limit_percent) / 100;
243 *pdev = &nvdev->base;
248 nouveau_device_open(const char *busid, struct nouveau_device **pdev)
250 int ret = -ENODEV, fd = drmOpen("nouveau", busid);
252 ret = nouveau_device_wrap(fd, 1, pdev);
260 nouveau_device_del(struct nouveau_device **pdev)
262 struct nouveau_device_priv *nvdev = nouveau_device(*pdev);
265 drmClose(nvdev->base.fd);
267 pthread_mutex_destroy(&nvdev->lock);
274 nouveau_getparam(struct nouveau_device *dev, uint64_t param, uint64_t *value)
276 struct drm_nouveau_getparam r = { .param = param };
277 int fd = dev->fd, ret =
278 drmCommandWriteRead(fd, DRM_NOUVEAU_GETPARAM, &r, sizeof(r));
284 nouveau_setparam(struct nouveau_device *dev, uint64_t param, uint64_t value)
286 struct drm_nouveau_setparam r = { .param = param, .value = value };
287 return drmCommandWrite(dev->fd, DRM_NOUVEAU_SETPARAM, &r, sizeof(r));
291 nouveau_client_new(struct nouveau_device *dev, struct nouveau_client **pclient)
293 struct nouveau_device_priv *nvdev = nouveau_device(dev);
294 struct nouveau_client_priv *pcli;
295 int id = 0, i, ret = -ENOMEM;
298 pthread_mutex_lock(&nvdev->lock);
300 for (i = 0; i < nvdev->nr_client; i++) {
301 id = ffs(nvdev->client[i]) - 1;
306 clients = realloc(nvdev->client, sizeof(uint32_t) * (i + 1));
309 nvdev->client = clients;
310 nvdev->client[i] = 0;
314 pcli = calloc(1, sizeof(*pcli));
316 nvdev->client[i] |= (1 << id);
317 pcli->base.device = dev;
318 pcli->base.id = (i * 32) + id;
322 *pclient = &pcli->base;
325 pthread_mutex_unlock(&nvdev->lock);
330 nouveau_client_del(struct nouveau_client **pclient)
332 struct nouveau_client_priv *pcli = nouveau_client(*pclient);
333 struct nouveau_device_priv *nvdev;
335 int id = pcli->base.id;
336 nvdev = nouveau_device(pcli->base.device);
337 pthread_mutex_lock(&nvdev->lock);
338 nvdev->client[id / 32] &= ~(1 << (id % 32));
339 pthread_mutex_unlock(&nvdev->lock);
346 nouveau_bo_del(struct nouveau_bo *bo)
348 struct nouveau_device_priv *nvdev = nouveau_device(bo->device);
349 struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
350 struct drm_gem_close req = { .handle = bo->handle };
352 if (nvbo->head.next) {
353 pthread_mutex_lock(&nvdev->lock);
354 if (atomic_read(&nvbo->refcnt) == 0) {
355 DRMLISTDEL(&nvbo->head);
357 * This bo has to be closed with the lock held because
358 * gem handles are not refcounted. If a shared bo is
359 * closed and re-opened in another thread a race
360 * against DRM_IOCTL_GEM_OPEN or drmPrimeFDToHandle
361 * might cause the bo to be closed accidentally while
364 drmIoctl(bo->device->fd, DRM_IOCTL_GEM_CLOSE, &req);
366 pthread_mutex_unlock(&nvdev->lock);
368 drmIoctl(bo->device->fd, DRM_IOCTL_GEM_CLOSE, &req);
371 drm_munmap(bo->map, bo->size);
376 nouveau_bo_new(struct nouveau_device *dev, uint32_t flags, uint32_t align,
377 uint64_t size, union nouveau_bo_config *config,
378 struct nouveau_bo **pbo)
380 struct nouveau_bo_priv *nvbo = calloc(1, sizeof(*nvbo));
381 struct nouveau_bo *bo = &nvbo->base;
386 atomic_set(&nvbo->refcnt, 1);
391 ret = abi16_bo_init(bo, align, config);
402 nouveau_bo_wrap_locked(struct nouveau_device *dev, uint32_t handle,
403 struct nouveau_bo **pbo, int name)
405 struct nouveau_device_priv *nvdev = nouveau_device(dev);
406 struct drm_nouveau_gem_info req = { .handle = handle };
407 struct nouveau_bo_priv *nvbo;
410 DRMLISTFOREACHENTRY(nvbo, &nvdev->bo_list, head) {
411 if (nvbo->base.handle == handle) {
412 if (atomic_inc_return(&nvbo->refcnt) == 1) {
414 * Uh oh, this bo is dead and someone else
415 * will free it, but because refcnt is
416 * now non-zero fortunately they won't
417 * call the ioctl to close the bo.
419 * Remove this bo from the list so other
420 * calls to nouveau_bo_wrap_locked will
421 * see our replacement nvbo.
423 DRMLISTDEL(&nvbo->head);
434 ret = drmCommandWriteRead(dev->fd, DRM_NOUVEAU_GEM_INFO,
439 nvbo = calloc(1, sizeof(*nvbo));
441 atomic_set(&nvbo->refcnt, 1);
442 nvbo->base.device = dev;
443 abi16_bo_info(&nvbo->base, &req);
445 DRMLISTADD(&nvbo->head, &nvdev->bo_list);
454 nouveau_bo_make_global(struct nouveau_bo_priv *nvbo)
456 if (!nvbo->head.next) {
457 struct nouveau_device_priv *nvdev = nouveau_device(nvbo->base.device);
458 pthread_mutex_lock(&nvdev->lock);
459 if (!nvbo->head.next)
460 DRMLISTADD(&nvbo->head, &nvdev->bo_list);
461 pthread_mutex_unlock(&nvdev->lock);
466 nouveau_bo_wrap(struct nouveau_device *dev, uint32_t handle,
467 struct nouveau_bo **pbo)
469 struct nouveau_device_priv *nvdev = nouveau_device(dev);
471 pthread_mutex_lock(&nvdev->lock);
472 ret = nouveau_bo_wrap_locked(dev, handle, pbo, 0);
473 pthread_mutex_unlock(&nvdev->lock);
478 nouveau_bo_name_ref(struct nouveau_device *dev, uint32_t name,
479 struct nouveau_bo **pbo)
481 struct nouveau_device_priv *nvdev = nouveau_device(dev);
482 struct nouveau_bo_priv *nvbo;
483 struct drm_gem_open req = { .name = name };
486 pthread_mutex_lock(&nvdev->lock);
487 DRMLISTFOREACHENTRY(nvbo, &nvdev->bo_list, head) {
488 if (nvbo->name == name) {
489 ret = nouveau_bo_wrap_locked(dev, nvbo->base.handle,
491 pthread_mutex_unlock(&nvdev->lock);
496 ret = drmIoctl(dev->fd, DRM_IOCTL_GEM_OPEN, &req);
498 ret = nouveau_bo_wrap_locked(dev, req.handle, pbo, name);
501 pthread_mutex_unlock(&nvdev->lock);
506 nouveau_bo_name_get(struct nouveau_bo *bo, uint32_t *name)
508 struct drm_gem_flink req = { .handle = bo->handle };
509 struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
513 int ret = drmIoctl(bo->device->fd, DRM_IOCTL_GEM_FLINK, &req);
519 nvbo->name = *name = req.name;
521 nouveau_bo_make_global(nvbo);
527 nouveau_bo_ref(struct nouveau_bo *bo, struct nouveau_bo **pref)
529 struct nouveau_bo *ref = *pref;
531 atomic_inc(&nouveau_bo(bo)->refcnt);
534 if (atomic_dec_and_test(&nouveau_bo(ref)->refcnt))
541 nouveau_bo_prime_handle_ref(struct nouveau_device *dev, int prime_fd,
542 struct nouveau_bo **bo)
544 struct nouveau_device_priv *nvdev = nouveau_device(dev);
548 nouveau_bo_ref(NULL, bo);
550 pthread_mutex_lock(&nvdev->lock);
551 ret = drmPrimeFDToHandle(dev->fd, prime_fd, &handle);
553 ret = nouveau_bo_wrap_locked(dev, handle, bo, 0);
555 pthread_mutex_unlock(&nvdev->lock);
560 nouveau_bo_set_prime(struct nouveau_bo *bo, int *prime_fd)
562 struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
565 ret = drmPrimeHandleToFD(bo->device->fd, nvbo->base.handle, DRM_CLOEXEC, prime_fd);
569 nouveau_bo_make_global(nvbo);
574 nouveau_bo_wait(struct nouveau_bo *bo, uint32_t access,
575 struct nouveau_client *client)
577 struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
578 struct drm_nouveau_gem_cpu_prep req;
579 struct nouveau_pushbuf *push;
582 if (!(access & NOUVEAU_BO_RDWR))
585 push = cli_push_get(client, bo);
586 if (push && push->channel)
587 nouveau_pushbuf_kick(push, push->channel);
589 if (!nvbo->head.next && !(nvbo->access & NOUVEAU_BO_WR) &&
590 !(access & NOUVEAU_BO_WR))
593 req.handle = bo->handle;
595 if (access & NOUVEAU_BO_WR)
596 req.flags |= NOUVEAU_GEM_CPU_PREP_WRITE;
597 if (access & NOUVEAU_BO_NOBLOCK)
598 req.flags |= NOUVEAU_GEM_CPU_PREP_NOWAIT;
600 ret = drmCommandWrite(bo->device->fd, DRM_NOUVEAU_GEM_CPU_PREP,
608 nouveau_bo_map(struct nouveau_bo *bo, uint32_t access,
609 struct nouveau_client *client)
611 struct nouveau_bo_priv *nvbo = nouveau_bo(bo);
612 if (bo->map == NULL) {
613 bo->map = drm_mmap(0, bo->size, PROT_READ | PROT_WRITE,
614 MAP_SHARED, bo->device->fd, nvbo->map_handle);
615 if (bo->map == MAP_FAILED) {
620 return nouveau_bo_wait(bo, access, client);