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Lines Matching defs:dmabuf

55 	.fo_name = "dmabuf",
72 	struct dma_buf *dmabuf;
75 		dmabuf = kmem_zalloc(offsetof(struct dma_buf, db_resv_int[1]),
78 		dmabuf = kmem_zalloc(sizeof(*dmabuf), KM_SLEEP);
81 	dmabuf->priv = info->priv;
82 	dmabuf->ops = info->ops;
83 	dmabuf->size = info->size;
84 	dmabuf->resv = info->resv;
86 	mutex_init(&dmabuf->db_lock, MUTEX_DEFAULT, IPL_NONE);
87 	dmabuf->db_refcnt = 1;
88 	dma_resv_poll_init(&dmabuf->db_resv_poll);
90 	if (dmabuf->resv == NULL) {
91 		dmabuf->resv = &dmabuf->db_resv_int[0];
92 		dma_resv_init(dmabuf->resv);
95 	return dmabuf;
99 dma_buf_fd(struct dma_buf *dmabuf, int flags)
111 	refcnt = atomic_inc_uint_nv(&dmabuf->db_refcnt);
117 	file->f_data = dmabuf;
129 	struct dma_buf *dmabuf;
142 	dmabuf = file->f_data;
143 	refcnt = atomic_inc_uint_nv(&dmabuf->db_refcnt);
146 	return dmabuf;
154 get_dma_buf(struct dma_buf *dmabuf)
158 	refcnt = atomic_inc_uint_nv(&dmabuf->db_refcnt);
163 dma_buf_put(struct dma_buf *dmabuf)
167 	if (atomic_dec_uint_nv(&dmabuf->db_refcnt) != 0)
171 	dma_resv_poll_fini(&dmabuf->db_resv_poll);
172 	mutex_destroy(&dmabuf->db_lock);
173 	if (dmabuf->resv == &dmabuf->db_resv_int[0]) {
174 		dma_resv_fini(dmabuf->resv);
175 		kmem_free(dmabuf, offsetof(struct dma_buf, db_resv_int[1]));
177 		kmem_free(dmabuf, sizeof(*dmabuf));
182 dma_buf_dynamic_attach(struct dma_buf *dmabuf, bus_dma_tag_t dmat,
189 	attach->dmabuf = dmabuf;
193 	mutex_enter(&dmabuf->db_lock);
194 	if (dmabuf->ops->attach)
195 		ret = dmabuf->ops->attach(dmabuf, attach);
196 	mutex_exit(&dmabuf->db_lock);
200 	if (attach->dynamic_mapping != dmabuf->ops->dynamic_mapping)
210 dma_buf_attach(struct dma_buf *dmabuf, bus_dma_tag_t dmat)
213 	return dma_buf_dynamic_attach(dmabuf, dmat, /*dynamic_mapping*/false);
217 dma_buf_detach(struct dma_buf *dmabuf, struct dma_buf_attachment *attach)
220 	mutex_enter(&dmabuf->db_lock);
221 	if (dmabuf->ops->detach)
222 		dmabuf->ops->detach(dmabuf, attach);
223 	mutex_exit(&dmabuf->db_lock);
234 	if (attach->dmabuf->ops->dynamic_mapping)
235 		dma_resv_lock(attach->dmabuf->resv, NULL);
236 	sg = attach->dmabuf->ops->map_dma_buf(attach, dir);
237 	if (attach->dmabuf->ops->dynamic_mapping)
238 		dma_resv_unlock(attach->dmabuf->resv);
248 	if (attach->dmabuf->ops->dynamic_mapping)
249 		dma_resv_lock(attach->dmabuf->resv, NULL);
250 	attach->dmabuf->ops->unmap_dma_buf(attach, sg, dir);
251 	if (attach->dmabuf->ops->dynamic_mapping)
252 		dma_resv_unlock(attach->dmabuf->resv);
258 	struct dma_buf *dmabuf = file->f_data;
260 	dma_buf_put(dmabuf);
267 	struct dma_buf *dmabuf = file->f_data;
268 	struct dma_resv_poll *rpoll = &dmabuf->db_resv_poll;
270 	return dma_resv_do_poll(dmabuf->resv, events, rpoll);
276 	struct dma_buf *dmabuf = file->f_data;
277 	struct dma_resv_poll *rpoll = &dmabuf->db_resv_poll;
279 	return dma_resv_kqfilter(dmabuf->resv, kn, rpoll);
286 	struct dma_buf *dmabuf = file->f_data;
288 	if (size > dmabuf->size || *offp < 0 || *offp > dmabuf->size - size)
291 	return dmabuf->ops->mmap(dmabuf, offp, size, prot, flagsp, advicep,
305 	struct dma_buf *dmabuf = fp->f_data;
316 		base = dmabuf->size;