mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
21c3015a24
the drivers. * Remove legacy inx/outx support from chipset and replace with macros which call busspace. * Rework pci config accesses to route through the pcib device instead of calling a MD function directly. With these changes it is possible to cleanly support machines which have more than one independantly numbered PCI busses. As a bonus, the new busspace implementation should be measurably faster than the old one.
155 lines
4.2 KiB
C
155 lines
4.2 KiB
C
/*-
|
|
* Copyright (c) 2000 Doug Rabson
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/kobj.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <machine/swiz.h>
|
|
|
|
static u_int8_t
|
|
swiz_read_1(struct alpha_busspace *space, size_t offset)
|
|
{
|
|
struct swiz_space *swiz = (struct swiz_space *) space;
|
|
alpha_mb();
|
|
if (swiz->sethae)
|
|
offset = swiz->sethae(swiz->arg, offset);
|
|
return SPARSE_READ_BYTE(swiz->base, offset);
|
|
}
|
|
|
|
static u_int16_t
|
|
swiz_read_2(struct alpha_busspace *space, size_t offset)
|
|
{
|
|
struct swiz_space *swiz = (struct swiz_space *) space;
|
|
alpha_mb();
|
|
if (swiz->sethae)
|
|
offset = swiz->sethae(swiz->arg, offset);
|
|
return SPARSE_READ_WORD(swiz->base, offset);
|
|
}
|
|
|
|
static u_int32_t
|
|
swiz_read_4(struct alpha_busspace *space, size_t offset)
|
|
{
|
|
struct swiz_space *swiz = (struct swiz_space *) space;
|
|
alpha_mb();
|
|
if (swiz->sethae)
|
|
offset = swiz->sethae(swiz->arg, offset);
|
|
return SPARSE_READ_LONG(swiz->base, offset);
|
|
}
|
|
|
|
static void
|
|
swiz_write_1(struct alpha_busspace *space, size_t offset, u_int8_t data)
|
|
{
|
|
struct swiz_space *swiz = (struct swiz_space *) space;
|
|
if (swiz->sethae)
|
|
offset = swiz->sethae(swiz->arg, offset);
|
|
SPARSE_WRITE_BYTE(swiz->base, offset, data);
|
|
alpha_mb();
|
|
}
|
|
|
|
static void
|
|
swiz_write_2(struct alpha_busspace *space, size_t offset, u_int16_t data)
|
|
{
|
|
struct swiz_space *swiz = (struct swiz_space *) space;
|
|
if (swiz->sethae)
|
|
offset = swiz->sethae(swiz->arg, offset);
|
|
SPARSE_WRITE_WORD(swiz->base, offset, data);
|
|
alpha_mb();
|
|
}
|
|
|
|
static void
|
|
swiz_write_4(struct alpha_busspace *space, size_t offset, u_int32_t data)
|
|
{
|
|
struct swiz_space *swiz = (struct swiz_space *) space;
|
|
if (swiz->sethae)
|
|
offset = swiz->sethae(swiz->arg, offset);
|
|
SPARSE_WRITE_LONG(swiz->base, offset, data);
|
|
alpha_mb();
|
|
}
|
|
|
|
static struct alpha_busspace_ops swiz_space_ops = {
|
|
swiz_read_1,
|
|
swiz_read_2,
|
|
swiz_read_4,
|
|
|
|
busspace_generic_read_multi_1,
|
|
busspace_generic_read_multi_2,
|
|
busspace_generic_read_multi_4,
|
|
|
|
busspace_generic_read_region_1,
|
|
busspace_generic_read_region_2,
|
|
busspace_generic_read_region_4,
|
|
|
|
swiz_write_1,
|
|
swiz_write_2,
|
|
swiz_write_4,
|
|
|
|
busspace_generic_write_multi_1,
|
|
busspace_generic_write_multi_2,
|
|
busspace_generic_write_multi_4,
|
|
|
|
busspace_generic_write_region_1,
|
|
busspace_generic_write_region_2,
|
|
busspace_generic_write_region_4,
|
|
|
|
busspace_generic_set_multi_1,
|
|
busspace_generic_set_multi_2,
|
|
busspace_generic_set_multi_4,
|
|
|
|
busspace_generic_set_region_1,
|
|
busspace_generic_set_region_2,
|
|
busspace_generic_set_region_4,
|
|
|
|
busspace_generic_copy_region_1,
|
|
busspace_generic_copy_region_2,
|
|
busspace_generic_copy_region_4,
|
|
|
|
busspace_generic_barrier,
|
|
};
|
|
|
|
void
|
|
swiz_init_space(struct swiz_space *swiz, u_int64_t base)
|
|
{
|
|
swiz->ops = &swiz_space_ops;
|
|
swiz->base = base;
|
|
swiz->sethae = 0;
|
|
swiz->arg = 0;
|
|
}
|
|
|
|
void swiz_init_space_hae(struct swiz_space *swiz, u_int64_t base,
|
|
swiz_sethae_fn sethae, void *arg)
|
|
{
|
|
swiz->ops = &swiz_space_ops;
|
|
swiz->base = base;
|
|
swiz->sethae = sethae;
|
|
swiz->arg = arg;
|
|
}
|
|
|