/*-
* Copyright (c) 2012 Intel Corporation
* Copyright (c) 2009 Marcel Moolenaar
* 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.
*
* $FreeBSD$
*/
#ifndef _MACHINE_BUS_H_
#define _MACHINE_BUS_H_
#include <sys/systm.h>
#include <x86/bus.h>
#define KASSERT_BUS_SPACE_MEM_ONLY(tag) \
KASSERT((tag) == X86_BUS_SPACE_MEM, \
("%s: can only handle mem space", __func__))
static __inline uint64_t
bus_space_read_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs)
{
KASSERT_BUS_SPACE_MEM_ONLY(tag);
return (*(volatile uint64_t *)(bsh + ofs));
}
static __inline void
bus_space_write_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t val)
{
KASSERT_BUS_SPACE_MEM_ONLY(tag);
*(volatile uint64_t *)(bsh + ofs) = val;
}
static __inline void
bus_space_read_region_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t *bufp, size_t count)
{
volatile uint64_t *bsp;
KASSERT_BUS_SPACE_MEM_ONLY(tag);
bsp = (void *)(bsh + ofs);
while (count-- > 0)
*bufp++ = *bsp++;
}
static __inline void
bus_space_write_region_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t const *bufp, size_t count)
{
volatile uint64_t *bsp;
KASSERT_BUS_SPACE_MEM_ONLY(tag);
bsp = (void *)(bsh + ofs);
while (count-- > 0)
*bsp++ = *bufp++;
}
static __inline void
bus_space_set_region_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t val, size_t count)
{
volatile uint64_t *bsp;
KASSERT_BUS_SPACE_MEM_ONLY(tag);
bsp = (void *)(bsh + ofs);
while (count-- > 0)
*bsp++ = val;
}
static __inline void
bus_space_copy_region_8(bus_space_tag_t tag, bus_space_handle_t sbsh,
bus_size_t sofs, bus_space_handle_t dbsh, bus_size_t dofs, size_t count)
{
volatile uint64_t *dst, *src;
KASSERT_BUS_SPACE_MEM_ONLY(tag);
src = (void *)(sbsh + sofs);
dst = (void *)(dbsh + dofs);
if (src < dst) {
src += count - 1;
dst += count - 1;
while (count-- > 0)
*dst-- = *src--;
} else {
while (count-- > 0)
*dst++ = *src++;
}
}
static __inline void
bus_space_read_multi_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t *bufp, size_t count)
{
KASSERT_BUS_SPACE_MEM_ONLY(tag);
while (count-- > 0)
*bufp++ = *(volatile uint64_t *)(bsh + ofs);
}
static __inline void
bus_space_write_multi_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t const *bufp, size_t count)
{
KASSERT_BUS_SPACE_MEM_ONLY(tag);
while (count-- > 0)
*(volatile uint64_t *)(bsh + ofs) = *bufp++;
}
static __inline void
bus_space_set_multi_8(bus_space_tag_t tag, bus_space_handle_t bsh,
bus_size_t ofs, uint64_t val, size_t count)
{
KASSERT_BUS_SPACE_MEM_ONLY(tag);
while (count-- > 0)
*(volatile uint64_t *)(bsh + ofs) = val;
}
#endif /*_MACHINE_BUS_H_*/
