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Diffstat (limited to 'rtemsbsd/include/x86/bus.h')
| -rw-r--r-- | rtemsbsd/include/x86/bus.h | 1109 |
1 files changed, 0 insertions, 1109 deletions
diff --git a/rtemsbsd/include/x86/bus.h b/rtemsbsd/include/x86/bus.h deleted file mode 100644 index 2427ae51..00000000 --- a/rtemsbsd/include/x86/bus.h +++ /dev/null @@ -1,1109 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-3-Clause AND BSD-2-Clause-NetBSDE - * - * Copyright (c) KATO Takenori, 1999. - * - * All rights reserved. Unpublished rights reserved under the copyright - * laws of Japan. - * - * 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. - * - * $FreeBSD$ - */ - -/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */ - -/*- - * Copyright (c) 1996, 1997 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. - * - * 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. - */ - -#ifndef _X86_BUS_H_ -#define _X86_BUS_H_ - -#include <machine/_bus.h> -#include <machine/cpufunc.h> - -#ifndef __GNUCLIKE_ASM -#error "no assembler code for your compiler" -#endif - -/* - * Values for the x86 bus space tag, not to be used directly by MI code. - */ -#define X86_BUS_SPACE_IO 0 /* space is i/o space */ -#define X86_BUS_SPACE_MEM 1 /* space is mem space */ - -#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF -#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF -#if defined(__amd64__) -#define BUS_SPACE_MAXSIZE 0xFFFFFFFFFFFFFFFFULL -#else -#define BUS_SPACE_MAXSIZE 0xFFFFFFFF -#endif -#define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF -#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF -#if defined(__amd64__) || defined(PAE) -#define BUS_SPACE_MAXADDR_48BIT 0xFFFFFFFFFFFFULL -#define BUS_SPACE_MAXADDR 0xFFFFFFFFFFFFFFFFULL -#else -#define BUS_SPACE_MAXADDR 0xFFFFFFFF -#endif - -#define BUS_SPACE_INVALID_DATA (~0) -#define BUS_SPACE_UNRESTRICTED (~0) - -/* - * Map a region of device bus space into CPU virtual address space. - */ - -int bus_space_map(bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, - int flags, bus_space_handle_t *bshp); - -/* - * Unmap a region of device bus space. - */ - -void bus_space_unmap(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t size); - -/* - * 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, - bus_space_handle_t bsh, - bus_size_t offset, bus_size_t size, - bus_space_handle_t *nbshp); - -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); -} - -/* - * Allocate a region of memory that is accessible to devices in bus space. - */ - -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); - -/* - * Free a region of bus space accessible memory. - */ - -static __inline void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh, - bus_size_t size); - -static __inline void -bus_space_free(bus_space_tag_t t __unused, bus_space_handle_t bsh __unused, - bus_size_t size __unused) -{ -} - - -/* - * 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 tag, - bus_space_handle_t handle, - bus_size_t offset); - -static __inline u_int16_t bus_space_read_2(bus_space_tag_t tag, - bus_space_handle_t handle, - bus_size_t offset); - -static __inline u_int32_t bus_space_read_4(bus_space_tag_t tag, - bus_space_handle_t handle, - bus_size_t offset); - -#ifdef __amd64__ -static __inline uint64_t bus_space_read_8(bus_space_tag_t tag, - bus_space_handle_t handle, - bus_size_t offset); -#endif - -static __inline u_int8_t -bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ - - if (tag == X86_BUS_SPACE_IO) - return (inb(handle + offset)); - return (*(volatile u_int8_t *)(handle + offset)); -} - -static __inline u_int16_t -bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ - - if (tag == X86_BUS_SPACE_IO) - return (inw(handle + offset)); - return (*(volatile u_int16_t *)(handle + offset)); -} - -static __inline u_int32_t -bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ - - if (tag == X86_BUS_SPACE_IO) - return (inl(handle + offset)); - return (*(volatile u_int32_t *)(handle + offset)); -} - -#ifdef __amd64__ -static __inline uint64_t -bus_space_read_8(bus_space_tag_t tag, bus_space_handle_t handle, - bus_size_t offset) -{ - - if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */ - return (BUS_SPACE_INVALID_DATA); - return (*(volatile uint64_t *)(handle + offset)); -} -#endif - -/* - * 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 tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int8_t *addr, - size_t count); - -static __inline void bus_space_read_multi_2(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int16_t *addr, - size_t count); - -static __inline void bus_space_read_multi_4(bus_space_tag_t tag, - bus_space_handle_t bsh, - bus_size_t offset, u_int32_t *addr, - size_t count); - -static __inline void -bus_space_read_multi_1(bus_space_tag_t tag, bus_space_handle_t bsh, - bus_size_t offset, u_int8_t *addr, size_t count) -{ - - if (tag == X86_BUS_SPACE_IO) - insb(bsh + offset, addr, count); - else { -#ifdef __GNUCLIKE_ASM - __asm __volatile(" \n\ - cld \n\ - 1: movb (%2),%%al \n\ - stosb \n\ - loop 1b" : - "=D" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory"); -#endif - } -} - -static __inline void -bus_space_read_multi_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) - insw(bsh + offset, addr, count); - else { -#ifdef __GNUCLIKE_ASM - __asm __volatile(" \n\ - cld \n\ - 1: movw (%2),%%ax \n\ - stosw \n\ - loop 1b" : - "=D" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory"); -#endif - } -} - -static __inline void -bus_space_read_multi_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) - insl(bsh + offset, addr, count); - else { -#ifdef __GNUCLIKE_ASM - __asm __volatile(" \n\ - cld \n\ - 1: movl (%2),%%eax \n\ - stosl \n\ - loop 1b" : - "=D" (addr), "=c" (count) : - "r" (bsh + offset), "0" (addr), "1" (count) : - "%eax", "memory"); -#endif - } -} - -#if 0 /* Cause a link error for bus_space_read_multi_8 */ -#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!! -#endif - -/* - * 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); - -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); - -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); - - -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) -{ - - if (tag == X86_BUS_SPACE_IO) { - 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_ */ |