powerpc/isa/isadma_machdep.c

164 	struct powerpc_isa_dma_cookie *cookie;
187 	cookiesize = sizeof(*cookie);
224 	 * Allocate our cookie.
232 	cookie = (struct powerpc_isa_dma_cookie *)cookiestore;
233 	cookie->id_flags = cookieflags;
234 	map->_dm_cookie = cookie;
262 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
267 	if (cookie->id_flags & ID_HAS_BOUNCE)
270 	size_t cookiesize = sizeof(*cookie);
271 	if (cookie->id_flags & ID_MIGHT_NEED_BOUNCE)
274 	kmem_intr_free(cookie, cookiesize);
285 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
301 	if (error == 0 || (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0)
313 	if ((cookie->id_flags & ID_HAS_BOUNCE) == 0) {
323 	cookie->id_origbuf = buf;
324 	cookie->id_origbuflen = buflen;
325 	cookie->id_buftype = ID_BUFTYPE_LINEAR;
326 	error = _bus_dmamap_load(t, map, cookie->id_bouncebuf, buflen,
339 	cookie->id_flags |= ID_IS_BOUNCING;
350 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
372 	if (error == 0 || (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0)
384 	if ((cookie->id_flags & ID_HAS_BOUNCE) == 0) {
395 	cookie->id_origbuf = m0;
396 	cookie->id_origbuflen = m0->m_pkthdr.len;	/* not really used */
397 	cookie->id_buftype = ID_BUFTYPE_MBUF;
398 	error = _bus_dmamap_load(t, map, cookie->id_bouncebuf,
411 	cookie->id_flags |= ID_IS_BOUNCING;
444 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
450 	if ((cookie->id_flags & ID_HAS_BOUNCE) &&
454 	cookie->id_flags &= ~ID_IS_BOUNCING;
455 	cookie->id_buftype = ID_BUFTYPE_INVALID;
470 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
491 	if ((cookie->id_flags & ID_IS_BOUNCING) == 0)
494 	switch (cookie->id_buftype) {
504 			memcpy((char *)cookie->id_bouncebuf + offset,
505 			    (char *)cookie->id_origbuf + offset, len);
512 			memcpy((char *)cookie->id_origbuf + offset,
513 			    (char *)cookie->id_bouncebuf + offset, len);
523 		struct mbuf *m, *m0 = cookie->id_origbuf;
535 			    (char *)cookie->id_bouncebuf + offset);
559 				    (char *)cookie->id_bouncebuf + offset,
587 		printf("unknown buffer type %d\n", cookie->id_buftype);
626 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
629 	cookie->id_bouncebuflen = round_page(size);
630 	error = _isa_bus_dmamem_alloc(t, cookie->id_bouncebuflen,
631 	    PAGE_SIZE, map->_dm_boundary, cookie->id_bouncesegs,
632 	    map->_dm_segcnt, &cookie->id_nbouncesegs, flags);
635 	error = _bus_dmamem_map(t, cookie->id_bouncesegs,
636 	    cookie->id_nbouncesegs, cookie->id_bouncebuflen,
637 	    (void **)&cookie->id_bouncebuf, flags);
641 		_bus_dmamem_free(t, cookie->id_bouncesegs,
642 		    cookie->id_nbouncesegs);
643 		cookie->id_bouncebuflen = 0;
644 		cookie->id_nbouncesegs = 0;
646 		cookie->id_flags |= ID_HAS_BOUNCE;
656 	struct powerpc_isa_dma_cookie *cookie = map->_dm_cookie;
660 	_bus_dmamem_unmap(t, cookie->id_bouncebuf,
661 	    cookie->id_bouncebuflen);
662 	_bus_dmamem_free(t, cookie->id_bouncesegs,
663 	    cookie->id_nbouncesegs);
664 	cookie->id_bouncebuflen = 0;
665 	cookie->id_nbouncesegs = 0;
666 	cookie->id_flags &= ~ID_HAS_BOUNCE;