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/*-
* Copyright (c) 2015 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 ``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.
*/
#define KCSAN_RUNTIME
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <x86/bus.h>
#include <vm/vm.h>
#include <vm/pmap.h>
/*
* Implementation of bus_space_map(), which effectively is a thin
* wrapper around pmap_mapdev() for memory mapped I/O space. It's
* implemented here and not in <x86/bus.h> to avoid pollution.
*/
int
bus_space_map(bus_space_tag_t tag, bus_addr_t addr, bus_size_t size,
int flags __unused, bus_space_handle_t *bshp)
{
*bshp = (tag == X86_BUS_SPACE_MEM)
? (uintptr_t)pmap_mapdev(addr, size)
: addr;
return (0);
}
void
bus_space_unmap(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t size)
{
if (tag == X86_BUS_SPACE_MEM)
pmap_unmapdev(bsh, size);
}
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