 @@ -1,14 +1,14 @@
-/*	$NetBSD: int_bus_dma.c,v 1.17 2010/11/04 12:16:15 uebayasi Exp $	*/
+/*	$NetBSD: int_bus_dma.c,v 1.18 2012/09/18 14:42:19 matt Exp $	*/
 /*
  * Copyright (c) 2002 Wasabi Systems, Inc.
  * All rights reserved.
+ *
  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
 @@ -32,636 +32,76 @@
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 /*
  * PCI DMA support for the ARM Integrator.
  */
 #define	_ARM32_BUS_DMA_PRIVATE
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: int_bus_dma.c,v 1.17 2010/11/04 12:16:15 uebayasi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: int_bus_dma.c,v 1.18 2012/09/18 14:42:19 matt Exp $");
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/device.h>
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
 #include <uvm/uvm_extern.h>
 #include <machine/bootconfig.h>
 #include <evbarm/integrator/int_bus_dma.h>
 struct integrator_dma_cookie {
 	int	id_flags;	/* flags; see below */
 	/*
 	 * Information about the original buffer used during
 	 * DMA map syncs.  Note that origbuflen is only used
 	 * for ID_BUFTYPE_LINEAR.
 	 */
 	void	*id_origbuf;		/* pointer to orig buffer if
 					   bouncing */
 	bus_size_t id_origbuflen;	/* ...and size */
 	int	id_buftype;		/* type of buffer */
 	void	*id_bouncebuf;		/* pointer to the bounce buffer */
 	bus_size_t id_bouncebuflen;	/* ...and size */
 	int	id_nbouncesegs;		/* number of valid bounce segs */
 	bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
 					       physical memory segments */
 };
 /* id_flags */
 #define ID_MIGHT_NEED_BOUNCE	0x01	/* map could need bounce buffers */
 #define ID_HAS_BOUNCE		0x02	/* map currently has bounce buffers */
 #define ID_IS_BOUNCING		0x04	/* map is bouncing current xfer */
 /* id_buftype */
 #define ID_BUFTYPE_INVALID	0
 #define ID_BUFTYPE_LINEAR	1
 #define ID_BUFTYPE_MBUF		2
 #define ID_BUFTYPE_UIO		3
 #define ID_BUFTYPE_RAW		4
 #undef	DEBUG
 #define DEBUG(x)
 static struct arm32_dma_range integrator_dma_ranges[DRAM_BLOCKS];
 extern BootConfig bootconfig;
 static int integrator_bus_dmamap_create(bus_dma_tag_t, bus_size_t, int,
     bus_size_t, bus_size_t, int, bus_dmamap_t *);
 static void integrator_bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
 static int  integrator_bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *,
     bus_size_t, struct proc *, int);
 static int  integrator_bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t,
     struct mbuf *, int);
 static int  integrator_bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t,
     struct uio *, int);
 static int  integrator_bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t,
     bus_dma_segment_t *, int, bus_size_t, int);
 static void integrator_bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
 static void integrator_bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t,
     bus_addr_t, bus_size_t, int);
 static int  integrator_bus_dmamem_alloc(bus_dma_tag_t, bus_size_t,
     bus_size_t, bus_size_t, bus_dma_segment_t *, int, int *, int);
 static int  integrator_dma_alloc_bouncebuf(bus_dma_tag_t, bus_dmamap_t,
     bus_size_t, int);
 static void integrator_dma_free_bouncebuf(bus_dma_tag_t, bus_dmamap_t);
 /*
  * Create an Integrator DMA map.
  */
 static int
 integrator_bus_dmamap_create(bus_dma_tag_t t, bus_size_t size, int nsegments,
     bus_size_t maxsegsz, bus_size_t boundary, int flags, bus_dmamap_t *dmamp)
 	struct integrator_dma_cookie *cookie;
 	bus_dmamap_t map;
 	int error, cookieflags;
 	void *cookiestore;
 	size_t cookiesize;
 	DEBUG(printf("I_bus_dmamap_create(tag %x, size %x, nseg %d, max %x,"
 	    " boundary %x, flags %x, dmamap %p)\n", (unsigned) t,
 	    (unsigned) size, nsegments, (unsigned) maxsegsz,
 	    (unsigned)boundary, flags, dmamp));
 	/* Call common function to create the basic map. */
 	error = _bus_dmamap_create(t, size, nsegments, maxsegsz, boundary,
 	    flags, dmamp);
 	if (error)
 		return (error);
 	map = *dmamp;
 	map->_dm_cookie = NULL;
 	cookiesize = sizeof(struct integrator_dma_cookie);
 	/*
 	 * Some CM boards have private memory which is significantly
 	 * faster than the normal memory stick.  To support this
 	 * memory we have to bounce any DMA transfers.
 	 * In order to DMA to arbitrary buffers, we use "bounce
 	 * buffers" - pages in in the main PCI visible memory.  On DMA
 	 * reads, DMA happens to the bounce buffers, and is copied
 	 * into the caller's buffer.  On writes, data is copied into
 	 * but bounce buffer, and the DMA happens from those pages.
 	 * To software using the DMA mapping interface, this looks
 	 * simply like a data cache.
 	 * If we have private RAM in the system, we may need bounce
 	 * buffers.  We check and remember that here.
 	 */
 #if 0
 	cookieflags = ID_MIGHT_NEED_BOUNCE;
 #else
 	cookieflags = 0;
 #endif
 	cookiesize += (sizeof(bus_dma_segment_t) * map->_dm_segcnt);
 	/*
 	 * Allocate our cookie.
 	 */
 	if ((cookiestore = malloc(cookiesize, M_DMAMAP,
 	    (flags & BUS_DMA_NOWAIT) ? M_NOWAIT : M_WAITOK)) == NULL) {
 		error = ENOMEM;
 		goto out;
 	memset(cookiestore, 0, cookiesize);
 	cookie = (struct integrator_dma_cookie *)cookiestore;
 	cookie->id_flags = cookieflags;
 	map->_dm_cookie = cookie;
 	if (cookieflags & ID_MIGHT_NEED_BOUNCE) {
 		/*
 		 * Allocate the bounce pages now if the caller
 		 * wishes us to do so.
 		 */
 		if ((flags & BUS_DMA_ALLOCNOW) == 0)
 			goto out;
 		DEBUG(printf("I_bus_dmamap_create bouncebuf alloc\n"));
 		error = integrator_dma_alloc_bouncebuf(t, map, size, flags);
  out:
 	if (error) {
 		if (map->_dm_cookie != NULL)
 			free(map->_dm_cookie, M_DMAMAP);
 		_bus_dmamap_destroy(t, map);
 		printf("I_bus_dmamap_create failed (%d)\n", error);
 	return (error);
 /*
  * Destroy an ISA DMA map.
  */
 static void
 integrator_bus_dmamap_destroy(bus_dma_tag_t t, bus_dmamap_t map)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	DEBUG(printf("I_bus_dmamap_destroy (tag %x, map %x)\n", (unsigned) t,
 	    (unsigned) map));
 	/*
 	 * Free any bounce pages this map might hold.
 	 */
 	if (cookie->id_flags & ID_HAS_BOUNCE) {
 		DEBUG(printf("I_bus_dmamap_destroy bouncebuf\n"));
 		integrator_dma_free_bouncebuf(t, map);
 	free(cookie, M_DMAMAP);
 	_bus_dmamap_destroy(t, map);
 /*
  * Load an Integrator DMA map with a linear buffer.
  */
 static int
 integrator_bus_dmamap_load(bus_dma_tag_t t, bus_dmamap_t map, void *buf,
     bus_size_t buflen, struct proc *p, int flags)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	int error;
 	DEBUG(printf("I_bus_dmamap_load (tag %x, map %x, buf %p, len %u,"
 	    " proc %p, flags %d)\n", (unsigned) t, (unsigned) map, buf,
 	    (unsigned) buflen, p, flags));
 	/*
 	 * Make sure that on error condition we return "no valid mappings."
 	 */
 	map->dm_mapsize = 0;
 	map->dm_nsegs = 0;
 	/*
 	 * Try to load the map the normal way.  If this errors out,
 	 * and we can bounce, we will.
 	 */
 	error = _bus_dmamap_load(t, map, buf, buflen, p, flags);
 	if (error == 0 ||
 	    (error != 0 && (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0))
 		return (error);
 	/*
 	 * First attempt failed; bounce it.
 	 */
 	/*
 	 * Allocate bounce pages, if necessary.
 	 */
 	if ((cookie->id_flags & ID_HAS_BOUNCE) == 0) {
 		DEBUG(printf("I_bus_dmamap_load alloc bouncebuf\n"));
 		error = integrator_dma_alloc_bouncebuf(t, map, buflen, flags);
 		if (error)
 			return (error);
 	/*
 	 * Cache a pointer to the caller's buffer and load the DMA map
 	 * with the bounce buffer.
 	 */
 	cookie->id_origbuf = buf;
 	cookie->id_origbuflen = buflen;
 	cookie->id_buftype = ID_BUFTYPE_LINEAR;
 	error = _bus_dmamap_load(t, map, cookie->id_bouncebuf, buflen,
 	    NULL, flags);
 	if (error) {
 		/*
 		 * Free the bounce pages, unless our resources
 		 * are reserved for our exclusive use.
 		 */
 		if ((map->_dm_flags & BUS_DMA_ALLOCNOW) == 0)
 			integrator_dma_free_bouncebuf(t, map);
 		return (error);
 	/* ...so integrator_bus_dmamap_sync() knows we're bouncing */
 	cookie->id_flags |= ID_IS_BOUNCING;
 	return (0);
 /*
  * Like integrator_bus_dmamap_load(), but for mbufs.
  */
 static int
 integrator_bus_dmamap_load_mbuf(bus_dma_tag_t t, bus_dmamap_t map,
     struct mbuf *m0, int flags)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	int error;
 	/*
 	 * Make sure that on error condition we return "no valid mappings."
 	 */
 	map->dm_mapsize = 0;
 	map->dm_nsegs = 0;
 #ifdef DIAGNOSTIC
 	if ((m0->m_flags & M_PKTHDR) == 0)
 		panic("integrator_bus_dmamap_load_mbuf: no packet header");
 #endif
 	if (m0->m_pkthdr.len > map->_dm_size)
 		return (EINVAL);
 	/*
 	 * Try to load the map the normal way.  If this errors out,
 	 * and we can bounce, we will.
 	 */
 	error = _bus_dmamap_load_mbuf(t, map, m0, flags);
 	if (error == 0 ||
 	    (error != 0 && (cookie->id_flags & ID_MIGHT_NEED_BOUNCE) == 0))
 		return (error);
 	/*
 	 * First attempt failed; bounce it.
 	 * Allocate bounce pages, if necessary.
 	 */
 	if ((cookie->id_flags & ID_HAS_BOUNCE) == 0) {
 		error = integrator_dma_alloc_bouncebuf(t, map,
 		    m0->m_pkthdr.len, flags);
 		if (error)
 			return (error);
 	/*
 	 * Cache a pointer to the caller's buffer and load the DMA map
 	 * with the bounce buffer.
 	 */
 	cookie->id_origbuf = m0;
 	cookie->id_origbuflen = m0->m_pkthdr.len;	/* not really used */
 	cookie->id_buftype = ID_BUFTYPE_MBUF;
 	error = _bus_dmamap_load(t, map, cookie->id_bouncebuf,
 	    m0->m_pkthdr.len, NULL, flags);
 	if (error) {
 		/*
 		 * Free the bounce pages, unless our resources
 		 * are reserved for our exclusive use.
 		 */
 		if ((map->_dm_flags & BUS_DMA_ALLOCNOW) == 0)
 			integrator_dma_free_bouncebuf(t, map);
 		return (error);
 	/* ...so integrator_bus_dmamap_sync() knows we're bouncing */
 	cookie->id_flags |= ID_IS_BOUNCING;
 	return (0);
 /*
  * Like integrator_bus_dmamap_load(), but for uios.
  */
 static int
 integrator_bus_dmamap_load_uio(bus_dma_tag_t t, bus_dmamap_t map,
     struct uio *uio, int flags)
 	panic("integrator_bus_dmamap_load_uio: not implemented");
 /*
  * Like intgrator_bus_dmamap_load(), but for raw memory allocated with
  * bus_dmamem_alloc().
  */
 static int
 integrator_bus_dmamap_load_raw(bus_dma_tag_t t, bus_dmamap_t map,
     bus_dma_segment_t *segs, int nsegs, bus_size_t size, int flags)
 	panic("integrator_bus_dmamap_load_raw: not implemented");
 /*
  * Unload an Integrator DMA map.
  */
 static void
 integrator_bus_dmamap_unload(bus_dma_tag_t t, bus_dmamap_t map)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	/*
 	 * If we have bounce pages, free them, unless they're
 	 * reserved for our exclusive use.
 	 */
 	if ((cookie->id_flags & ID_HAS_BOUNCE) &&
 	    (map->_dm_flags & BUS_DMA_ALLOCNOW) == 0)
 		integrator_dma_free_bouncebuf(t, map);
 	cookie->id_flags &= ~ID_IS_BOUNCING;
 	cookie->id_buftype = ID_BUFTYPE_INVALID;
 	/*
 	 * Do the generic bits of the unload.
 	 */
 	_bus_dmamap_unload(t, map);
 /*
  * Synchronize an Integrator DMA map.
  */
 static void
 integrator_bus_dmamap_sync(bus_dma_tag_t t, bus_dmamap_t map,
     bus_addr_t offset, bus_size_t len, int ops)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	DEBUG(printf("I_bus_dmamap_sync (tag %x, map %x, offset %x, size %u,"
 	    " ops %d\n", (unsigned)t, (unsigned)map, (unsigned)offset ,
 	    (unsigned)len, ops));
 	/*
 	 * Mixing PRE and POST operations is not allowed.
 	 */
 	if ((ops & (BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE)) != 0 &&
 	    (ops & (BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE)) != 0)
 		panic("integrator_bus_dmamap_sync: mix PRE and POST");
 #ifdef DIAGNOSTIC
 	if ((ops & (BUS_DMASYNC_PREWRITE|BUS_DMASYNC_POSTREAD)) != 0) {
 		if (offset >= map->dm_mapsize)
 			panic("integrator_bus_dmamap_sync: bad offset");
 		if (len == 0 || (offset + len) > map->dm_mapsize)
 			panic("integrator_bus_dmamap_sync: bad length");
 #endif
 	/*
 	 * If we're not bouncing then use the standard code.
 	 */
 	if ((cookie->id_flags & ID_IS_BOUNCING) == 0) {
 		_bus_dmamap_sync(t, map, offset, len, ops);
 		return;
 	DEBUG(printf("dmamap_sync(");
 	if (ops & BUS_DMASYNC_PREREAD)
 		printf("preread ");
 	if (ops & BUS_DMASYNC_PREWRITE)
 		printf("prewrite ");
 	if (ops & BUS_DMASYNC_POSTREAD)
 		printf("postread ");
 	if (ops & BUS_DMASYNC_POSTWRITE)
 		printf("postwrite ");)
 	switch (cookie->id_buftype) {
 	case ID_BUFTYPE_LINEAR:
 		if (ops & BUS_DMASYNC_PREWRITE) {
 			/*
 			 * Copy the caller's buffer to the bounce buffer.
 			 */
 			memcpy((uint8_t *)cookie->id_bouncebuf + offset,
 			    (uint8_t *)cookie->id_origbuf + offset, len);
 			cpu_dcache_wbinv_range((vaddr_t)cookie->id_bouncebuf +
 			    offset, len);
 		if (ops & BUS_DMASYNC_PREREAD) {
 			cpu_dcache_wbinv_range((vaddr_t)cookie->id_bouncebuf +
 			    offset, len);
 		if (ops & BUS_DMASYNC_POSTREAD) {
 			/*
 			 * Copy the bounce buffer to the caller's buffer.
 			 */
 			memcpy((uint8_t *)cookie->id_origbuf + offset,
 			    (uint8_t *)cookie->id_bouncebuf + offset, len);
 		/*
 		 * Nothing to do for post-write.
 		 */
 		break;
 	case ID_BUFTYPE_MBUF:
 		struct mbuf *m, *m0 = cookie->id_origbuf;
 		bus_size_t minlen, moff;
 		if (ops & BUS_DMASYNC_PREWRITE) {
 			/*
 			 * Copy the caller's buffer to the bounce buffer.
 			 */
 			m_copydata(m0, offset, len,
 			    (uint8_t *)cookie->id_bouncebuf + offset);
 			cpu_dcache_wb_range((vaddr_t)cookie->id_bouncebuf +
 			    offset, len);
 		if (ops & BUS_DMASYNC_PREREAD) {
 			cpu_dcache_wbinv_range ((vaddr_t)cookie->id_bouncebuf +
 			    offset, len);
 		if (ops & BUS_DMASYNC_POSTREAD) {
 			/*
 			 * Copy the bounce buffer to the caller's buffer.
 			 */
 			for (moff = offset, m = m0; m != NULL && len != 0;
 			    m = m->m_next) {
 				/* Find the beginning mbuf. */
 				if (moff >= m->m_len) {
 					moff -= m->m_len;
 					continue;
 				/*
 				 * Now at the first mbuf to sync; nail
 				 * each one until we have exhausted the
 				 * length.
 				 */
 				minlen = len < m->m_len - moff ?
 				    len : m->m_len - moff;
 				memcpy(mtod(m, uint8_t *) + moff,
 				    (uint8_t *)cookie->id_bouncebuf + offset,
 				    minlen);
 				moff = 0;
 				len -= minlen;
 				offset += minlen;
 		/*
 		 * Nothing to do for post-write.
 		 */
 		break;
 	case ID_BUFTYPE_UIO:
 		panic("integrator_bus_dmamap_sync: ID_BUFTYPE_UIO");
 		break;
 	case ID_BUFTYPE_RAW:
 		panic("integrator_bus_dmamap_sync: ID_BUFTYPE_RAW");
 		break;
 	case ID_BUFTYPE_INVALID:
 		panic("integrator_bus_dmamap_sync: ID_BUFTYPE_INVALID");
 		break;
 	default:
 		printf("unknown buffer type %d\n", cookie->id_buftype);
 		panic("integrator_bus_dmamap_sync");
 /*
  * Allocate memory safe for Integrator DMA.
  */
 static int
 integrator_bus_dmamem_alloc(bus_dma_tag_t t, bus_size_t size,
     bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs,
     int nsegs, int *rsegs, int flags)
 	if (t->_ranges == NULL)
 		return (ENOMEM);
 	/* _bus_dmamem_alloc() does the range checks for us. */
 	return (_bus_dmamem_alloc(t, size, alignment, boundary, segs, nsegs,
 	    rsegs, flags));
 /**********************************************************************
  * Integrator DMA utility functions
  **********************************************************************/
 static int
 integrator_dma_alloc_bouncebuf(bus_dma_tag_t t, bus_dmamap_t map,
     bus_size_t size, int flags)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	int error = 0;
 	DEBUG(printf("Alloc bouncebuf\n"));
 	cookie->id_bouncebuflen = round_page(size);
 	error = integrator_bus_dmamem_alloc(t, cookie->id_bouncebuflen,
 	    NBPG, map->_dm_boundary, cookie->id_bouncesegs,
 	    map->_dm_segcnt, &cookie->id_nbouncesegs, flags);
 	if (error)
 		goto out;
 		int seg;
 		for (seg = 0; seg < cookie->id_nbouncesegs; seg++)
 			DEBUG(printf("Seg %d @ PA 0x%08x+0x%x\n", seg,
 			    (unsigned) cookie->id_bouncesegs[seg].ds_addr,
 			    (unsigned) cookie->id_bouncesegs[seg].ds_len));
 	error = _bus_dmamem_map(t, cookie->id_bouncesegs,
 	    cookie->id_nbouncesegs, cookie->id_bouncebuflen,
 	    (void **)&cookie->id_bouncebuf, flags);
  out:
 	if (error) {
 		_bus_dmamem_free(t, cookie->id_bouncesegs,
 		    cookie->id_nbouncesegs);
 		cookie->id_bouncebuflen = 0;
 		cookie->id_nbouncesegs = 0;
 	} else {
 		DEBUG(printf("Alloc bouncebuf OK\n"));
 		cookie->id_flags |= ID_HAS_BOUNCE;
 	return (error);
 static void
 integrator_dma_free_bouncebuf(bus_dma_tag_t t, bus_dmamap_t map)
 	struct integrator_dma_cookie *cookie = map->_dm_cookie;
 	_bus_dmamem_unmap(t, cookie->id_bouncebuf,
 	    cookie->id_bouncebuflen);
 	_bus_dmamem_free(t, cookie->id_bouncesegs,
 	    cookie->id_nbouncesegs);
 	cookie->id_bouncebuflen = 0;
 	cookie->id_nbouncesegs = 0;
 	cookie->id_flags &= ~ID_HAS_BOUNCE;
 void
 integrator_pci_dma_init(bus_dma_tag_t dmat)
+{
 	struct arm32_dma_range *dr = integrator_dma_ranges;
 	int i;
 	int nranges = 0;
-	for (i = 0; i < bootconfig.dramblocks; i++)
+	for (i = 0; i < bootconfig.dramblocks; i++) {
 		if (bootconfig.dram[i].flags & BOOT_DRAM_CAN_DMA) {
 			dr[nranges].dr_sysbase = bootconfig.dram[i].address;
 			dr[nranges].dr_busbase =
 			    LOCAL_TO_CM_ALIAS(dr[nranges].dr_sysbase);
 			dr[nranges].dr_len = bootconfig.dram[i].pages * NBPG;
 			nranges++;
+		}
+	}
 	if (nranges == 0)
 		panic ("integrator_pci_dma_init: No DMA capable memory");
 	dmat->_ranges = dr;
 	dmat->_nranges = nranges;
-	dmat->_dmamap_create = integrator_bus_dmamap_create;
+	dmat->_dmamap_create = _bus_dmamap_create;
-	dmat->_dmamap_destroy = integrator_bus_dmamap_destroy;
+	dmat->_dmamap_destroy = _bus_dmamap_destroy;
-	dmat->_dmamap_load = integrator_bus_dmamap_load;
+	dmat->_dmamap_load = _bus_dmamap_load;
-	dmat->_dmamap_load_mbuf = integrator_bus_dmamap_load_mbuf;
+	dmat->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
-	dmat->_dmamap_load_uio = integrator_bus_dmamap_load_uio;
+	dmat->_dmamap_load_uio = _bus_dmamap_load_uio;
-	dmat->_dmamap_load_raw = integrator_bus_dmamap_load_raw;
+	dmat->_dmamap_load_raw = _bus_dmamap_load_raw;
-	dmat->_dmamap_unload = integrator_bus_dmamap_unload;
+	dmat->_dmamap_unload = _bus_dmamap_unload;
-	dmat->_dmamap_sync_pre = integrator_bus_dmamap_sync;
+	dmat->_dmamap_sync_pre = _bus_dmamap_sync;
-	dmat->_dmamap_sync_post = integrator_bus_dmamap_sync;
+	dmat->_dmamap_sync_post = _bus_dmamap_sync;
-	dmat->_dmamem_alloc = integrator_bus_dmamem_alloc;
+	dmat->_dmamem_alloc = _bus_dmamem_alloc;
 	dmat->_dmamem_free = _bus_dmamem_free;
 	dmat->_dmamem_map = _bus_dmamem_map;
 	dmat->_dmamem_unmap = _bus_dmamem_unmap;
 	dmat->_dmamem_mmap = _bus_dmamem_mmap;
 	dmat->_dmatag_subregion = _bus_dmatag_subregion;
 	dmat->_dmatag_destroy = _bus_dmatag_destroy;
+}