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/*-
* Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* 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
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* 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.
*/
/*-
* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
*
* 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
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS 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.
*
* $NetBSD: bus.h,v 1.9.4.1 2000/06/30 16:27:30 simonb Exp $
* $FreeBSD$
*/
#ifndef _MACPPC_BUS_H_
#define _MACPPC_BUS_H_
#include <machine/_bus.h>
#include <machine/pio.h>
#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
#define BUS_SPACE_MAXADDR 0xFFFFFFFF
#define BUS_SPACE_UNRESTRICTED (~0)
/*
* Values for the macppc bus space tag, not to be used directly by MI code.
*/
#define __BUS_SPACE_HAS_STREAM_METHODS 1
/*
* Define the PPC tag values
*/
#define PPC_BUS_SPACE_MEM 1 /* space is mem space */
#define PPC_BUS_SPACE_IO 2 /* space is io space */
static __inline void *
__ppc_ba(bus_space_tag_t tag __unused, bus_space_handle_t handle,
bus_size_t offset)
{
return ((void *)(handle + offset));
}
/*
* int bus_space_map(bus_space_tag_t t, bus_addr_t addr,
* bus_size_t size, int flags, bus_space_handle_t *bshp));
*
* Map a region of bus space.
*/
#if 0
bus_space_map(t, addr, size, flags, bshp) ! not implemented !
#endif
/*
* int bus_space_unmap(bus_space_tag_t t,
* bus_space_handle_t bsh, bus_size_t size));
*
* Unmap a region of bus space.
*/
static __inline void
bus_space_unmap(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
bus_size_t size __unused)
{
}
/*
* int bus_space_subregion(bus_space_tag_t t,
* bus_space_handle_t bsh, bus_size_t offset, bus_size_t size,
* bus_space_handle_t *nbshp));
*
* Get a new handle for a subregion of an already-mapped area of bus space.
*/
static __inline int
bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size __unused, bus_space_handle_t *nbshp)
{
*nbshp = bsh + offset;
return (0);
}
/*
* int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
* bus_addr_t rend, bus_size_t size, bus_size_t align,
* bus_size_t boundary, int flags, bus_addr_t *addrp,
* bus_space_handle_t *bshp));
*
* Allocate a region of bus space.
*/
#if 0
#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) !!! unimplemented !!!
#endif
/*
* int bus_space_free(bus_space_tag_t t,
* bus_space_handle_t bsh, bus_size_t size));
*
* Free a region of bus space.
*/
#if 0
#define bus_space_free(t, h, s) !!! unimplemented !!!
#endif
/*
* u_intN_t bus_space_read_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset));
*
* Read a 1, 2, 4, or 8 byte quantity from bus space
* described by tag/handle/offset.
*/
static __inline u_int8_t
bus_space_read_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
{
return (in8(__ppc_ba(t, h, o)));
}
static __inline u_int16_t
bus_space_read_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
{
return (in16rb(__ppc_ba(t, h, o)));
}
static __inline u_int32_t
bus_space_read_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
{
return (in32rb(__ppc_ba(t, h, o)));
}
#if 0 /* Cause a link error for bus_space_read_8 */
#define bus_space_read_8(t, h, o) !!! unimplemented !!!
#endif
static __inline u_int8_t
bus_space_read_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
{
return (in8(__ppc_ba(t, h, o)));
}
static __inline u_int16_t
bus_space_read_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
{
return (in16(__ppc_ba(t, h, o)));
}
static __inline u_int32_t
bus_space_read_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o)
{
return (in32(__ppc_ba(t, h, o)));
}
#if 0 /* Cause a link error for bus_space_read_stream_8 */
#define bus_space_read_stream_8(t, h, o) !!! unimplemented !!!
#endif
/*
* void bus_space_read_multi_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* u_intN_t *addr, size_t count));
*
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
* described by tag/handle/offset and copy into buffer provided.
*/
static __inline void
bus_space_read_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
u_int8_t *a, size_t c)
{
ins8(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_read_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
u_int16_t *a, size_t c)
{
ins16rb(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_read_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
u_int32_t *a, size_t c)
{
ins32rb(__ppc_ba(t, h, o), a, c);
}
#if 0 /* Cause a link error for bus_space_read_multi_8 */
#define bus_space_read_multi_8 !!! unimplemented !!!
#endif
static __inline void
bus_space_read_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
bus_size_t o, u_int8_t *a, size_t c)
{
ins8(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_read_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
bus_size_t o, u_int16_t *a, size_t c)
{
ins16(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_read_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
bus_size_t o, u_int32_t *a, size_t c)
{
ins32(__ppc_ba(t, h, o), a, c);
}
#if 0 /* Cause a link error for bus_space_read_multi_stream_8 */
#define bus_space_read_multi_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_read_region_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* u_intN_t *addr, size_t count));
*
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
* described by tag/handle and starting at `offset' and copy into
* buffer provided.
*/
static __inline void
bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int8_t *addr, size_t count)
{
volatile u_int8_t *s = __ppc_ba(tag, bsh, offset);
while (count--)
*addr++ = *s++;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_read_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t *addr, size_t count)
{
volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("lhbrx %0, 0, %1" :
"=r"(*addr++) : "r"(s++));
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_read_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t *addr, size_t count)
{
volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("lwbrx %0, 0, %1" :
"=r"(*addr++) : "r"(s++));
__asm __volatile("eieio; sync");
}
#if 0 /* Cause a link error for bus_space_read_region_8 */
#define bus_space_read_region_8 !!! unimplemented !!!
#endif
static __inline void
bus_space_read_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t *addr, size_t count)
{
volatile u_int16_t *s = __ppc_ba(tag, bsh, offset);
while (count--)
*addr++ = *s++;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_read_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t *addr, size_t count)
{
volatile u_int32_t *s = __ppc_ba(tag, bsh, offset);
while (count--)
*addr++ = *s++;
__asm __volatile("eieio; sync");
}
#if 0 /* Cause a link error */
#define bus_space_read_region_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_write_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* u_intN_t value));
*
* Write the 1, 2, 4, or 8 byte value `value' to bus space
* described by tag/handle/offset.
*/
static __inline void
bus_space_write_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint8_t v)
{
out8(__ppc_ba(t, h, o), v);
}
static __inline void
bus_space_write_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint16_t v)
{
out16rb(__ppc_ba(t, h, o), v);
}
static __inline void
bus_space_write_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint32_t v)
{
out32rb(__ppc_ba(t, h, o), v);
}
#if 0 /* Cause a link error for bus_space_write_8 */
#define bus_space_write_8 !!! unimplemented !!!
#endif
static __inline void
bus_space_write_stream_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint8_t v)
{
out8(__ppc_ba(t, h, o), v);
}
static __inline void
bus_space_write_stream_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint16_t v)
{
out16(__ppc_ba(t, h, o), v);
}
static __inline void
bus_space_write_stream_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint32_t v)
{
out32(__ppc_ba(t, h, o), v);
}
#if 0 /* Cause a link error for bus_space_write_stream_8 */
#define bus_space_write_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_write_multi_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* const u_intN_t *addr, size_t count));
*
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer
* provided to bus space described by tag/handle/offset.
*/
static __inline void
bus_space_write_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint8_t *a, size_t c)
{
outsb(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_write_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint16_t *a, size_t c)
{
outsw(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_write_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o,
uint32_t *a, size_t c)
{
outsl(__ppc_ba(t, h, o), a, c);
}
#if 0
#define bus_space_write_multi_8 !!! unimplemented !!!
#endif
static __inline void
bus_space_write_multi_stream_1(bus_space_tag_t t, bus_space_handle_t h,
bus_size_t o, const u_int8_t *a, size_t c)
{
outsb(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_write_multi_stream_2(bus_space_tag_t t, bus_space_handle_t h,
bus_size_t o, const u_int16_t *a, size_t c)
{
outsw(__ppc_ba(t, h, o), a, c);
}
static __inline void
bus_space_write_multi_stream_4(bus_space_tag_t t, bus_space_handle_t h,
bus_size_t o, const u_int32_t *a, size_t c)
{
outsl(__ppc_ba(t, h, o), a, c);
}
#if 0
#define bus_space_write_multi_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_write_region_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* const u_intN_t *addr, size_t count));
*
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided
* to bus space described by tag/handle starting at `offset'.
*/
static __inline void
bus_space_write_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, const u_int8_t *addr, size_t count)
{
volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d++ = *addr++;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_write_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, const u_int16_t *addr, size_t count)
{
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("sthbrx %0, 0, %1" ::
"r"(*addr++), "r"(d++));
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_write_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, const u_int32_t *addr, size_t count)
{
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("stwbrx %0, 0, %1" ::
"r"(*addr++), "r"(d++));
__asm __volatile("eieio; sync");
}
#if 0
#define bus_space_write_region_8 !!! bus_space_write_region_8 unimplemented !!!
#endif
static __inline void
bus_space_write_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, const u_int16_t *addr, size_t count)
{
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d++ = *addr++;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_write_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, const u_int32_t *addr, size_t count)
{
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d++ = *addr++;
__asm __volatile("eieio; sync");
}
#if 0
#define bus_space_write_region_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_set_multi_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
* size_t count));
*
* Write the 1, 2, 4, or 8 byte value `val' to bus space described
* by tag/handle/offset `count' times.
*/
static __inline void
bus_space_set_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int8_t val, size_t count)
{
volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d = val;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_set_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t val, size_t count)
{
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("sthbrx %0, 0, %1" ::
"r"(val), "r"(d));
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_set_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t val, size_t count)
{
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("stwbrx %0, 0, %1" ::
"r"(val), "r"(d));
__asm __volatile("eieio; sync");
}
#if 0
#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
#endif
static __inline void
bus_space_set_multi_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t val, size_t count)
{
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d = val;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_set_multi_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t val, size_t count)
{
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d = val;
__asm __volatile("eieio; sync");
}
#if 0
#define bus_space_set_multi_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_set_region_N(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset, u_intN_t val,
* size_t count));
*
* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
* by tag/handle starting at `offset'.
*/
static __inline void
bus_space_set_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int8_t val, size_t count)
{
volatile u_int8_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d++ = val;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_set_region_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t val, size_t count)
{
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("sthbrx %0, 0, %1" ::
"r"(val), "r"(d++));
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_set_region_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t val, size_t count)
{
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
__asm __volatile("stwbrx %0, 0, %1" ::
"r"(val), "r"(d++));
__asm __volatile("eieio; sync");
}
#if 0
#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
#endif
static __inline void
bus_space_set_region_stream_2(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t val, size_t count)
{
volatile u_int16_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d++ = val;
__asm __volatile("eieio; sync");
}
static __inline void
bus_space_set_region_stream_4(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t val, size_t count)
{
volatile u_int32_t *d = __ppc_ba(tag, bsh, offset);
while (count--)
*d++ = val;
__asm __volatile("eieio; sync");
}
#if 0
#define bus_space_set_region_stream_8 !!! unimplemented !!!
#endif
/*
* void bus_space_copy_region_N(bus_space_tag_t tag,
* bus_space_handle_t bsh1, bus_size_t off1,
* bus_space_handle_t bsh2, bus_size_t off2,
* size_t count));
*
* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
*/
/* XXX IMPLEMENT bus_space_copy_N() XXX */
/*
* Bus read/write barrier methods.
*
* void bus_space_barrier(bus_space_tag_t tag,
* bus_space_handle_t bsh, bus_size_t offset,
* bus_size_t len, int flags));
*
* Note: the macppc does not currently require barriers, but we must
* provide the flags to MI code.
*/
#define BUS_SPACE_BARRIER_READ 0x01 /* force read barrier */
#define BUS_SPACE_BARRIER_WRITE 0x02 /* force write barrier */
static __inline void
bus_space_barrier(bus_space_tag_t tag __unused,
bus_space_handle_t bsh __unused, bus_size_t offset __unused,
bus_size_t len __unused, int flags __unused)
{
__asm __volatile("" : : : "memory");
}
#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
#include <machine/bus_dma.h>
#endif /* _MACPPC_BUS_H_ */
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