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7ef5e8bc80
frame buffers and memory mapped UARTs.
1. Delay calling cninit() until after pmap_bootstrap(). This makes
sure we have PMAP initialized enough to add translations. Keep
kdb_init() after cninit() so that we have console when we need
to break into the debugger on boot.
2. Unfortunately, the ATPIC code had be moved as well so as to
avoid a spurious trap #30. The reason for which is not known
at this time.
3. In pmap_mapdev_attr(), when we need to map a device prior to the
VM system being initialized, use virtual_avail as the KVA to map
the device at. In particular, avoid using the direct map on amd64
because we can't demote by virtue of not being able to allocate
yet. Keep track of the translation.
Re-use the translation after the VM has been initialized to not
waste KVA and to satisfy the assumption in uart(4) that the handle
returned for the low-level console is the same as later returned
when the device is probed and attached.
4. In pmap_unmapdev() remove the mapping from the table when called
pre-init. Otherwise keep the mapping. During bus probe and attach
device resources are mapped and unmapped multiple times, which
would have us destroy the mapping used by the low-level console.
5. In pmap_init(), set pmap_initialized to signal that we're not
pre-init anymore. On amd64, bring the direct map in sync with the
translations created at that time.
6. Implement bus_space_map() and bus_space_unmap() for real: when
the tag corresponds to memory space, call the corresponding
pmap_mapdev() and pmap_unmapdev() functions to construct and
actual handle.
7. In efifb.c and vt_vga.c, remove the crutches and hacks and simply
call pmap_mapdev_attr() or bus_space_map() as desired.
Notes:
1. uart(4) already used bus_space_map() during low-level console
setup but since serial ports have traditionally been I/O port
based, the lack of a proper implementation for said function
was not a problem. It has always supported memory mapped UARTs
for low-level consoles by setting hw.uart.console accordingly.
2. The use of the direct map on amd64 without setting caching
attributes has been a bigger problem than previously thought.
This change has the fortunate (and unexpected) side-effect of
fixing various EFI frame buffer problems (though not all).
PR: 191564, 194952
Special thanks to:
1. XipLink, Inc -- generously donated an Intel Bay Trail E3800
based eval board (ADLE3800PC).
2. The FreeBSD Foundation, in particular emaste@ -- for UEFI
support in general and testing.
3. Everyone who tested the proposed for PR 191564.
4. jhb@ and kib@ for being a soundboard and applying a clue bat
if so needed.
1105 lines
32 KiB
C
1105 lines
32 KiB
C
/*-
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* Copyright (c) KATO Takenori, 1999.
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*
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* All rights reserved. Unpublished rights reserved under the copyright
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* laws of Japan.
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*
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* 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 as
|
|
* the first lines of this file unmodified.
|
|
* 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. 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.
|
|
*
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* $FreeBSD$
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*/
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|
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/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */
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/*-
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* Copyright (c) 1996, 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
|
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* NASA Ames Research Center.
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*
|
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* 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.
|
|
*
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|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
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* ``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
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1996 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* modification, are permitted provided that the following conditions
|
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* are met:
|
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* 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.
|
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* 3. All advertising materials mentioning features or use of this software
|
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* must display the following acknowledgement:
|
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* This product includes software developed by Christopher G. Demetriou
|
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* for the NetBSD Project.
|
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* 4. The name of the author may not be used to endorse or promote products
|
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* derived from this software without specific prior written permission
|
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*
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* 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
|
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _X86_BUS_H_
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#define _X86_BUS_H_
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#include <machine/_bus.h>
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#include <machine/cpufunc.h>
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#ifndef __GNUCLIKE_ASM
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# ifndef lint
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# error "no assembler code for your compiler"
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# endif
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#endif
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/*
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* Values for the x86 bus space tag, not to be used directly by MI code.
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*/
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#define X86_BUS_SPACE_IO 0 /* space is i/o space */
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#define X86_BUS_SPACE_MEM 1 /* space is mem space */
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#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
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#define BUS_SPACE_MAXSIZE 0xFFFFFFFF
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#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF
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#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
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#if defined(__amd64__) || defined(PAE)
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#define BUS_SPACE_MAXADDR 0xFFFFFFFFFFFFFFFFULL
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#else
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#define BUS_SPACE_MAXADDR 0xFFFFFFFF
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#endif
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#define BUS_SPACE_INVALID_DATA (~0)
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#define BUS_SPACE_UNRESTRICTED (~0)
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/*
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* Map a region of device bus space into CPU virtual address space.
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*/
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int bus_space_map(bus_space_tag_t tag, bus_addr_t addr, bus_size_t size,
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int flags, bus_space_handle_t *bshp);
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/*
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* Unmap a region of device bus space.
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*/
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void bus_space_unmap(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t size);
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/*
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* Get a new handle for a subregion of an already-mapped area of bus space.
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*/
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static __inline int bus_space_subregion(bus_space_tag_t t,
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bus_space_handle_t bsh,
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bus_size_t offset, bus_size_t size,
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bus_space_handle_t *nbshp);
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static __inline int
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bus_space_subregion(bus_space_tag_t t __unused, bus_space_handle_t bsh,
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bus_size_t offset, bus_size_t size __unused,
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bus_space_handle_t *nbshp)
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{
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*nbshp = bsh + offset;
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return (0);
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}
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/*
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* Allocate a region of memory that is accessible to devices in bus space.
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*/
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int bus_space_alloc(bus_space_tag_t t, bus_addr_t rstart,
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bus_addr_t rend, bus_size_t size, bus_size_t align,
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bus_size_t boundary, int flags, bus_addr_t *addrp,
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bus_space_handle_t *bshp);
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/*
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* Free a region of bus space accessible memory.
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*/
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static __inline void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh,
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bus_size_t size);
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static __inline void
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bus_space_free(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused,
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bus_size_t size __unused)
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{
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}
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/*
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* Read a 1, 2, 4, or 8 byte quantity from bus space
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* described by tag/handle/offset.
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*/
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static __inline u_int8_t bus_space_read_1(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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static __inline u_int16_t bus_space_read_2(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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static __inline u_int32_t bus_space_read_4(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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#ifdef __amd64__
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static __inline uint64_t bus_space_read_8(bus_space_tag_t tag,
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bus_space_handle_t handle,
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bus_size_t offset);
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#endif
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static __inline u_int8_t
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bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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if (tag == X86_BUS_SPACE_IO)
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return (inb(handle + offset));
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return (*(volatile u_int8_t *)(handle + offset));
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}
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static __inline u_int16_t
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bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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if (tag == X86_BUS_SPACE_IO)
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return (inw(handle + offset));
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return (*(volatile u_int16_t *)(handle + offset));
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}
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static __inline u_int32_t
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bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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if (tag == X86_BUS_SPACE_IO)
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return (inl(handle + offset));
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return (*(volatile u_int32_t *)(handle + offset));
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}
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#ifdef __amd64__
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static __inline uint64_t
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bus_space_read_8(bus_space_tag_t tag, bus_space_handle_t handle,
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bus_size_t offset)
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{
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if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */
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return (BUS_SPACE_INVALID_DATA);
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return (*(volatile uint64_t *)(handle + offset));
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}
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#endif
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/*
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* Read `count' 1, 2, 4, or 8 byte quantities from bus space
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* described by tag/handle/offset and copy into buffer provided.
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*/
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static __inline void bus_space_read_multi_1(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t *addr,
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size_t count);
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static __inline void bus_space_read_multi_2(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr,
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size_t count);
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static __inline void bus_space_read_multi_4(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr,
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size_t count);
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static __inline void
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bus_space_read_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t *addr, size_t count)
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{
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if (tag == X86_BUS_SPACE_IO)
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insb(bsh + offset, addr, count);
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else {
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#ifdef __GNUCLIKE_ASM
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__asm __volatile(" \n\
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cld \n\
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1: movb (%2),%%al \n\
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stosb \n\
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loop 1b" :
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"=D" (addr), "=c" (count) :
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"r" (bsh + offset), "0" (addr), "1" (count) :
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"%eax", "memory");
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#endif
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}
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}
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static __inline void
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bus_space_read_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr, size_t count)
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{
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if (tag == X86_BUS_SPACE_IO)
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insw(bsh + offset, addr, count);
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else {
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#ifdef __GNUCLIKE_ASM
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__asm __volatile(" \n\
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cld \n\
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1: movw (%2),%%ax \n\
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stosw \n\
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loop 1b" :
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"=D" (addr), "=c" (count) :
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"r" (bsh + offset), "0" (addr), "1" (count) :
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"%eax", "memory");
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#endif
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}
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}
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static __inline void
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bus_space_read_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr, size_t count)
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{
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if (tag == X86_BUS_SPACE_IO)
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insl(bsh + offset, addr, count);
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else {
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#ifdef __GNUCLIKE_ASM
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__asm __volatile(" \n\
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cld \n\
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1: movl (%2),%%eax \n\
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stosl \n\
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loop 1b" :
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"=D" (addr), "=c" (count) :
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"r" (bsh + offset), "0" (addr), "1" (count) :
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"%eax", "memory");
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#endif
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}
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}
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|
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#if 0 /* Cause a link error for bus_space_read_multi_8 */
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#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!!
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#endif
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|
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/*
|
|
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
|
|
* described by tag/handle and starting at `offset' and copy into
|
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* buffer provided.
|
|
*/
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static __inline void bus_space_read_region_1(bus_space_tag_t tag,
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bus_space_handle_t bsh,
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bus_size_t offset, u_int8_t *addr,
|
|
size_t count);
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|
|
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static __inline void bus_space_read_region_2(bus_space_tag_t tag,
|
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bus_space_handle_t bsh,
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bus_size_t offset, u_int16_t *addr,
|
|
size_t count);
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|
|
|
static __inline void bus_space_read_region_4(bus_space_tag_t tag,
|
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bus_space_handle_t bsh,
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bus_size_t offset, u_int32_t *addr,
|
|
size_t count);
|
|
|
|
|
|
static __inline void
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|
bus_space_read_region_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
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bus_size_t offset, u_int8_t *addr, size_t count)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
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int _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: inb %w2,%%al \n\
|
|
stosb \n\
|
|
incl %2 \n\
|
|
loop 1b" :
|
|
"=D" (addr), "=c" (count), "=d" (_port_) :
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
} else {
|
|
bus_space_handle_t _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
repne \n\
|
|
movsb" :
|
|
"=D" (addr), "=c" (count), "=S" (_port_) :
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
"memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
int _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: inw %w2,%%ax \n\
|
|
stosw \n\
|
|
addl $2,%2 \n\
|
|
loop 1b" :
|
|
"=D" (addr), "=c" (count), "=d" (_port_) :
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
} else {
|
|
bus_space_handle_t _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
repne \n\
|
|
movsw" :
|
|
"=D" (addr), "=c" (count), "=S" (_port_) :
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
"memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
int _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: inl %w2,%%eax \n\
|
|
stosl \n\
|
|
addl $4,%2 \n\
|
|
loop 1b" :
|
|
"=D" (addr), "=c" (count), "=d" (_port_) :
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
} else {
|
|
bus_space_handle_t _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
repne \n\
|
|
movsl" :
|
|
"=D" (addr), "=c" (count), "=S" (_port_) :
|
|
"0" (addr), "1" (count), "2" (_port_) :
|
|
"memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_read_region_8 */
|
|
#define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* 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 tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int8_t value);
|
|
|
|
static __inline void bus_space_write_2(bus_space_tag_t tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t value);
|
|
|
|
static __inline void bus_space_write_4(bus_space_tag_t tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t value);
|
|
|
|
#ifdef __amd64__
|
|
static __inline void bus_space_write_8(bus_space_tag_t tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset, uint64_t value);
|
|
#endif
|
|
|
|
static __inline void
|
|
bus_space_write_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int8_t value)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
outb(bsh + offset, value);
|
|
else
|
|
*(volatile u_int8_t *)(bsh + offset) = value;
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int16_t value)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
outw(bsh + offset, value);
|
|
else
|
|
*(volatile u_int16_t *)(bsh + offset) = value;
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, u_int32_t value)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
outl(bsh + offset, value);
|
|
else
|
|
*(volatile u_int32_t *)(bsh + offset) = value;
|
|
}
|
|
|
|
#ifdef __amd64__
|
|
static __inline void
|
|
bus_space_write_8(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, uint64_t value)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */
|
|
return;
|
|
else
|
|
*(volatile uint64_t *)(bsh + offset) = value;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* 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 tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset,
|
|
const u_int8_t *addr,
|
|
size_t count);
|
|
static __inline void bus_space_write_multi_2(bus_space_tag_t tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset,
|
|
const u_int16_t *addr,
|
|
size_t count);
|
|
|
|
static __inline void bus_space_write_multi_4(bus_space_tag_t tag,
|
|
bus_space_handle_t bsh,
|
|
bus_size_t offset,
|
|
const u_int32_t *addr,
|
|
size_t count);
|
|
|
|
static __inline void
|
|
bus_space_write_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int8_t *addr, size_t count)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
outsb(bsh + offset, addr, count);
|
|
else {
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: lodsb \n\
|
|
movb %%al,(%2) \n\
|
|
loop 1b" :
|
|
"=S" (addr), "=c" (count) :
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_2(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int16_t *addr, size_t count)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
outsw(bsh + offset, addr, count);
|
|
else {
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: lodsw \n\
|
|
movw %%ax,(%2) \n\
|
|
loop 1b" :
|
|
"=S" (addr), "=c" (count) :
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_write_multi_4(bus_space_tag_t tag, bus_space_handle_t bsh,
|
|
bus_size_t offset, const u_int32_t *addr, size_t count)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
outsl(bsh + offset, addr, count);
|
|
else {
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: lodsl \n\
|
|
movl %%eax,(%2) \n\
|
|
loop 1b" :
|
|
"=S" (addr), "=c" (count) :
|
|
"r" (bsh + offset), "0" (addr), "1" (count) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_multi_8 */
|
|
#define bus_space_write_multi_8(t, h, o, a, c) \
|
|
!!! bus_space_write_multi_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* 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);
|
|
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);
|
|
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);
|
|
|
|
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)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
int _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: lodsb \n\
|
|
outb %%al,%w0 \n\
|
|
incl %0 \n\
|
|
loop 1b" :
|
|
"=d" (_port_), "=S" (addr), "=c" (count) :
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
} else {
|
|
bus_space_handle_t _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
repne \n\
|
|
movsb" :
|
|
"=D" (_port_), "=S" (addr), "=c" (count) :
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
"memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
int _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: lodsw \n\
|
|
outw %%ax,%w0 \n\
|
|
addl $2,%0 \n\
|
|
loop 1b" :
|
|
"=d" (_port_), "=S" (addr), "=c" (count) :
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
} else {
|
|
bus_space_handle_t _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
repne \n\
|
|
movsw" :
|
|
"=D" (_port_), "=S" (addr), "=c" (count) :
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
"memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
int _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
1: lodsl \n\
|
|
outl %%eax,%w0 \n\
|
|
addl $4,%0 \n\
|
|
loop 1b" :
|
|
"=d" (_port_), "=S" (addr), "=c" (count) :
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
"%eax", "memory", "cc");
|
|
#endif
|
|
} else {
|
|
bus_space_handle_t _port_ = bsh + offset;
|
|
#ifdef __GNUCLIKE_ASM
|
|
__asm __volatile(" \n\
|
|
cld \n\
|
|
repne \n\
|
|
movsl" :
|
|
"=D" (_port_), "=S" (addr), "=c" (count) :
|
|
"0" (_port_), "1" (addr), "2" (count) :
|
|
"memory", "cc");
|
|
#endif
|
|
}
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_write_region_8 */
|
|
#define bus_space_write_region_8 \
|
|
!!! bus_space_write_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* 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 value, size_t count);
|
|
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 value, size_t count);
|
|
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 value, size_t count);
|
|
|
|
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 value, size_t count)
|
|
{
|
|
bus_space_handle_t addr = bsh + offset;
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
while (count--)
|
|
outb(addr, value);
|
|
else
|
|
while (count--)
|
|
*(volatile u_int8_t *)(addr) = value;
|
|
}
|
|
|
|
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 value, size_t count)
|
|
{
|
|
bus_space_handle_t addr = bsh + offset;
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
while (count--)
|
|
outw(addr, value);
|
|
else
|
|
while (count--)
|
|
*(volatile u_int16_t *)(addr) = value;
|
|
}
|
|
|
|
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 value, size_t count)
|
|
{
|
|
bus_space_handle_t addr = bsh + offset;
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
while (count--)
|
|
outl(addr, value);
|
|
else
|
|
while (count--)
|
|
*(volatile u_int32_t *)(addr) = value;
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_set_multi_8 */
|
|
#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* 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 value,
|
|
size_t count);
|
|
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 value,
|
|
size_t count);
|
|
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 value,
|
|
size_t count);
|
|
|
|
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 value, size_t count)
|
|
{
|
|
bus_space_handle_t addr = bsh + offset;
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
for (; count != 0; count--, addr++)
|
|
outb(addr, value);
|
|
else
|
|
for (; count != 0; count--, addr++)
|
|
*(volatile u_int8_t *)(addr) = value;
|
|
}
|
|
|
|
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 value, size_t count)
|
|
{
|
|
bus_space_handle_t addr = bsh + offset;
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
for (; count != 0; count--, addr += 2)
|
|
outw(addr, value);
|
|
else
|
|
for (; count != 0; count--, addr += 2)
|
|
*(volatile u_int16_t *)(addr) = value;
|
|
}
|
|
|
|
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 value, size_t count)
|
|
{
|
|
bus_space_handle_t addr = bsh + offset;
|
|
|
|
if (tag == X86_BUS_SPACE_IO)
|
|
for (; count != 0; count--, addr += 4)
|
|
outl(addr, value);
|
|
else
|
|
for (; count != 0; count--, addr += 4)
|
|
*(volatile u_int32_t *)(addr) = value;
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_set_region_8 */
|
|
#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
static __inline void bus_space_copy_region_1(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);
|
|
|
|
static __inline void bus_space_copy_region_2(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);
|
|
|
|
static __inline void bus_space_copy_region_4(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);
|
|
|
|
static __inline void
|
|
bus_space_copy_region_1(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)
|
|
{
|
|
bus_space_handle_t addr1 = bsh1 + off1;
|
|
bus_space_handle_t addr2 = bsh2 + off2;
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1++, addr2++)
|
|
outb(addr2, inb(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += (count - 1), addr2 += (count - 1);
|
|
count != 0; count--, addr1--, addr2--)
|
|
outb(addr2, inb(addr1));
|
|
}
|
|
} else {
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1++, addr2++)
|
|
*(volatile u_int8_t *)(addr2) =
|
|
*(volatile u_int8_t *)(addr1);
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += (count - 1), addr2 += (count - 1);
|
|
count != 0; count--, addr1--, addr2--)
|
|
*(volatile u_int8_t *)(addr2) =
|
|
*(volatile u_int8_t *)(addr1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_2(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)
|
|
{
|
|
bus_space_handle_t addr1 = bsh1 + off1;
|
|
bus_space_handle_t addr2 = bsh2 + off2;
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 2, addr2 += 2)
|
|
outw(addr2, inw(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
|
|
count != 0; count--, addr1 -= 2, addr2 -= 2)
|
|
outw(addr2, inw(addr1));
|
|
}
|
|
} else {
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 2, addr2 += 2)
|
|
*(volatile u_int16_t *)(addr2) =
|
|
*(volatile u_int16_t *)(addr1);
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1);
|
|
count != 0; count--, addr1 -= 2, addr2 -= 2)
|
|
*(volatile u_int16_t *)(addr2) =
|
|
*(volatile u_int16_t *)(addr1);
|
|
}
|
|
}
|
|
}
|
|
|
|
static __inline void
|
|
bus_space_copy_region_4(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)
|
|
{
|
|
bus_space_handle_t addr1 = bsh1 + off1;
|
|
bus_space_handle_t addr2 = bsh2 + off2;
|
|
|
|
if (tag == X86_BUS_SPACE_IO) {
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 4, addr2 += 4)
|
|
outl(addr2, inl(addr1));
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
|
|
count != 0; count--, addr1 -= 4, addr2 -= 4)
|
|
outl(addr2, inl(addr1));
|
|
}
|
|
} else {
|
|
if (addr1 >= addr2) {
|
|
/* src after dest: copy forward */
|
|
for (; count != 0; count--, addr1 += 4, addr2 += 4)
|
|
*(volatile u_int32_t *)(addr2) =
|
|
*(volatile u_int32_t *)(addr1);
|
|
} else {
|
|
/* dest after src: copy backwards */
|
|
for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1);
|
|
count != 0; count--, addr1 -= 4, addr2 -= 4)
|
|
*(volatile u_int32_t *)(addr2) =
|
|
*(volatile u_int32_t *)(addr1);
|
|
}
|
|
}
|
|
}
|
|
|
|
#if 0 /* Cause a link error for bus_space_copy_8 */
|
|
#define bus_space_copy_region_8 !!! bus_space_copy_region_8 unimplemented !!!
|
|
#endif
|
|
|
|
/*
|
|
* 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 that BUS_SPACE_BARRIER_WRITE doesn't do anything other than
|
|
* prevent reordering by the compiler; all Intel x86 processors currently
|
|
* retire operations outside the CPU in program order.
|
|
*/
|
|
#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)
|
|
{
|
|
#ifdef __GNUCLIKE_ASM
|
|
if (flags & BUS_SPACE_BARRIER_READ)
|
|
#ifdef __amd64__
|
|
__asm __volatile("lock; addl $0,0(%%rsp)" : : : "memory");
|
|
#else
|
|
__asm __volatile("lock; addl $0,0(%%esp)" : : : "memory");
|
|
#endif
|
|
else
|
|
__compiler_membar();
|
|
#endif
|
|
}
|
|
|
|
#ifdef BUS_SPACE_NO_LEGACY
|
|
#undef inb
|
|
#undef outb
|
|
#define inb(a) compiler_error
|
|
#define inw(a) compiler_error
|
|
#define inl(a) compiler_error
|
|
#define outb(a, b) compiler_error
|
|
#define outw(a, b) compiler_error
|
|
#define outl(a, b) compiler_error
|
|
#endif
|
|
|
|
#include <machine/bus_dma.h>
|
|
|
|
/*
|
|
* Stream accesses are the same as normal accesses on x86; there are no
|
|
* supported bus systems with an endianess different from the host one.
|
|
*/
|
|
#define bus_space_read_stream_1(t, h, o) bus_space_read_1((t), (h), (o))
|
|
#define bus_space_read_stream_2(t, h, o) bus_space_read_2((t), (h), (o))
|
|
#define bus_space_read_stream_4(t, h, o) bus_space_read_4((t), (h), (o))
|
|
|
|
#define bus_space_read_multi_stream_1(t, h, o, a, c) \
|
|
bus_space_read_multi_1((t), (h), (o), (a), (c))
|
|
#define bus_space_read_multi_stream_2(t, h, o, a, c) \
|
|
bus_space_read_multi_2((t), (h), (o), (a), (c))
|
|
#define bus_space_read_multi_stream_4(t, h, o, a, c) \
|
|
bus_space_read_multi_4((t), (h), (o), (a), (c))
|
|
|
|
#define bus_space_write_stream_1(t, h, o, v) \
|
|
bus_space_write_1((t), (h), (o), (v))
|
|
#define bus_space_write_stream_2(t, h, o, v) \
|
|
bus_space_write_2((t), (h), (o), (v))
|
|
#define bus_space_write_stream_4(t, h, o, v) \
|
|
bus_space_write_4((t), (h), (o), (v))
|
|
|
|
#define bus_space_write_multi_stream_1(t, h, o, a, c) \
|
|
bus_space_write_multi_1((t), (h), (o), (a), (c))
|
|
#define bus_space_write_multi_stream_2(t, h, o, a, c) \
|
|
bus_space_write_multi_2((t), (h), (o), (a), (c))
|
|
#define bus_space_write_multi_stream_4(t, h, o, a, c) \
|
|
bus_space_write_multi_4((t), (h), (o), (a), (c))
|
|
|
|
#define bus_space_set_multi_stream_1(t, h, o, v, c) \
|
|
bus_space_set_multi_1((t), (h), (o), (v), (c))
|
|
#define bus_space_set_multi_stream_2(t, h, o, v, c) \
|
|
bus_space_set_multi_2((t), (h), (o), (v), (c))
|
|
#define bus_space_set_multi_stream_4(t, h, o, v, c) \
|
|
bus_space_set_multi_4((t), (h), (o), (v), (c))
|
|
|
|
#define bus_space_read_region_stream_1(t, h, o, a, c) \
|
|
bus_space_read_region_1((t), (h), (o), (a), (c))
|
|
#define bus_space_read_region_stream_2(t, h, o, a, c) \
|
|
bus_space_read_region_2((t), (h), (o), (a), (c))
|
|
#define bus_space_read_region_stream_4(t, h, o, a, c) \
|
|
bus_space_read_region_4((t), (h), (o), (a), (c))
|
|
|
|
#define bus_space_write_region_stream_1(t, h, o, a, c) \
|
|
bus_space_write_region_1((t), (h), (o), (a), (c))
|
|
#define bus_space_write_region_stream_2(t, h, o, a, c) \
|
|
bus_space_write_region_2((t), (h), (o), (a), (c))
|
|
#define bus_space_write_region_stream_4(t, h, o, a, c) \
|
|
bus_space_write_region_4((t), (h), (o), (a), (c))
|
|
|
|
#define bus_space_set_region_stream_1(t, h, o, v, c) \
|
|
bus_space_set_region_1((t), (h), (o), (v), (c))
|
|
#define bus_space_set_region_stream_2(t, h, o, v, c) \
|
|
bus_space_set_region_2((t), (h), (o), (v), (c))
|
|
#define bus_space_set_region_stream_4(t, h, o, v, c) \
|
|
bus_space_set_region_4((t), (h), (o), (v), (c))
|
|
|
|
#define bus_space_copy_region_stream_1(t, h1, o1, h2, o2, c) \
|
|
bus_space_copy_region_1((t), (h1), (o1), (h2), (o2), (c))
|
|
#define bus_space_copy_region_stream_2(t, h1, o1, h2, o2, c) \
|
|
bus_space_copy_region_2((t), (h1), (o1), (h2), (o2), (c))
|
|
#define bus_space_copy_region_stream_4(t, h1, o1, h2, o2, c) \
|
|
bus_space_copy_region_4((t), (h1), (o1), (h2), (o2), (c))
|
|
|
|
#endif /* _X86_BUS_H_ */
|