alpha/isa/isadma_bounce.c

150 	struct isadma_bounce_cookie *cookie;
153 	if ((cookie = kmem_zalloc(isadma_bounce_cookiesize(map, cookieflags),
158 	cookie->id_flags = cookieflags;
159 	map->_dm_cookie = cookie;
167 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
169 	if (cookie != NULL) {
171 		    isadma_bounce_cookiesize(map, cookie->id_flags));
183 	struct isadma_bounce_cookie *cookie;
197 	 * Allocate our cookie.
202 	cookie = map->_dm_cookie;
204 	if (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) {
229 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
234 	if (cookie->id_flags & ID_HAS_BOUNCE)
248 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
262 	if (error == 0 || (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0)
272 	if ((cookie->id_flags & ID_HAS_BOUNCE) == 0) {
282 	cookie->id_origbuf = buf;
283 	cookie->id_origbuflen = buflen;
284 	cookie->id_buftype = ID_BUFTYPE_LINEAR;
285 	error = _bus_dmamap_load_direct(t, map, cookie->id_bouncebuf, buflen,
298 	cookie->id_flags |= ID_IS_BOUNCING;
310 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
332 	if (error == 0 || (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0)
342 	if ((cookie->id_flags & ID_HAS_BOUNCE) == 0) {
353 	cookie->id_origbuf = m0;
354 	cookie->id_origbuflen = m0->m_pkthdr.len;	/* not really used */
355 	cookie->id_buftype = ID_BUFTYPE_MBUF;
356 	error = _bus_dmamap_load_direct(t, map, cookie->id_bouncebuf,
369 	cookie->id_flags |= ID_IS_BOUNCING;
403 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
409 	if ((cookie->id_flags & ID_HAS_BOUNCE) &&
413 	cookie->id_flags &= ~ID_IS_BOUNCING;
414 	cookie->id_buftype = ID_BUFTYPE_INVALID;
429 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
451 	if ((cookie->id_flags & ID_IS_BOUNCING) == 0) {
456 	switch (cookie->id_buftype) {
466 			memcpy((char *)cookie->id_bouncebuf + offset,
467 			    (char *)cookie->id_origbuf + offset, len);
474 			memcpy((char *)cookie->id_origbuf + offset,
475 			    (char *)cookie->id_bouncebuf + offset, len);
485 		struct mbuf *m, *m0 = cookie->id_origbuf;
497 			    (char *)cookie->id_bouncebuf + offset);
521 				    (char *)cookie->id_bouncebuf + offset,
549 		printf("unknown buffer type %d\n", cookie->id_buftype);
584 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
587 	cookie->id_bouncebuflen = round_page(size);
588 	error = isadma_bounce_dmamem_alloc(t, cookie->id_bouncebuflen,
589 	    PAGE_SIZE, map->_dm_boundary, cookie->id_bouncesegs,
590 	    map->_dm_segcnt, &cookie->id_nbouncesegs, flags);
593 	error = _bus_dmamem_map(t, cookie->id_bouncesegs,
594 	    cookie->id_nbouncesegs, cookie->id_bouncebuflen,
595 	    (void **)&cookie->id_bouncebuf, flags);
599 		_bus_dmamem_free(t, cookie->id_bouncesegs,
600 		    cookie->id_nbouncesegs);
601 		cookie->id_bouncebuflen = 0;
602 		cookie->id_nbouncesegs = 0;
604 		cookie->id_flags |= ID_HAS_BOUNCE;
612 	struct isadma_bounce_cookie *cookie = map->_dm_cookie;
614 	_bus_dmamem_unmap(t, cookie->id_bouncebuf,
615 	    cookie->id_bouncebuflen);
616 	_bus_dmamem_free(t, cookie->id_bouncesegs,
617 	    cookie->id_nbouncesegs);
618 	cookie->id_bouncebuflen = 0;
619 	cookie->id_nbouncesegs = 0;
620 	cookie->id_flags &= ~ID_HAS_BOUNCE;