/* $NetBSD: bus.h,v 1.12 1997/10/01 08:25:15 fvdl Exp $ */ /*- * $Id: bus.h,v 1.6 2007/08/09 11:23:32 katta 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * 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. * * from: src/sys/alpha/include/bus.h,v 1.5 1999/08/28 00:38:40 peter * $FreeBSD$ */ #ifndef _MACHINE_BUS_H_ #define _MACHINE_BUS_H_ #ifdef TARGET_OCTEON #include #else #include #include /* * Values for the mips bus space tag, not to be used directly by MI code. */ #define MIPS_BUS_SPACE_IO 0 /* space is i/o space */ #define MIPS_BUS_SPACE_MEM 1 /* space is mem space */ #define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF #define BUS_SPACE_MAXSIZE 0xFFFFFFFF /* Maximum supported size */ #define BUS_SPACE_MAXADDR_24BIT 0xFFFFFF #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF #define BUS_SPACE_MAXADDR 0xFFFFFFFF #define BUS_SPACE_UNRESTRICTED (~0) /* * Map a region of device bus space into CPU virtual address space. */ static __inline int bus_space_map(bus_space_tag_t t, bus_addr_t addr, bus_size_t size, int flags, bus_space_handle_t *bshp); static __inline int bus_space_map(bus_space_tag_t t __unused, bus_addr_t addr, bus_size_t size __unused, int flags __unused, bus_space_handle_t *bshp) { *bshp = addr; return (0); } /* * Unmap a region of device bus space. */ void bus_space_unmap(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size); /* * Get a new handle for a subregion of an already-mapped area of bus space. */ 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); /* * 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. */ void bus_space_free(bus_space_tag_t t, bus_space_handle_t bsh, bus_size_t size); /* * 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); 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 == MIPS_BUS_SPACE_IO) return (inb(handle + offset)); return (readb(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 == MIPS_BUS_SPACE_IO) return (inw(handle + offset)); return (readw(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 == MIPS_BUS_SPACE_IO) return (inl(handle + offset)); return (readl(handle + offset)); } #if 0 /* Cause a link error for bus_space_read_8 */ #define bus_space_read_8(t, h, o) !!! bus_space_read_8 unimplemented !!! #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 == MIPS_BUS_SPACE_IO) while (count--) *addr++ = inb(bsh + offset); else while (count--) *addr++ = readb(bsh + offset); } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) *addr++ = inw(baddr); else while (count--) *addr++ = readw(baddr); } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) *addr++ = inl(baddr); else while (count--) *addr++ = readl(baddr); } #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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) { *addr++ = inb(baddr); baddr += 1; } else while (count--) { *addr++ = readb(baddr); baddr += 1; } } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) { *addr++ = inw(baddr); baddr += 2; } else while (count--) { *addr++ = readw(baddr); baddr += 2; } } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) { *addr++ = inl(baddr); baddr += 4; } else while (count--) { *addr++ = readb(baddr); baddr += 4; } } #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); 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 == MIPS_BUS_SPACE_IO) outb(bsh + offset, value); else writeb(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 == MIPS_BUS_SPACE_IO) outw(bsh + offset, value); else writew(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 == MIPS_BUS_SPACE_IO) outl(bsh + offset, value); else writel(bsh + offset, value); } #if 0 /* Cause a link error for bus_space_write_8 */ #define bus_space_write_8 !!! bus_space_write_8 not implemented !!! #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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) outb(baddr, *addr++); else while (count--) writeb(baddr, *addr++); } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) outw(baddr, *addr++); else while (count--) writew(baddr, *addr++); } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) outl(baddr, *addr++); else while (count--) writel(baddr, *addr++); } #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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) { outb(baddr, *addr++); baddr += 1; } else while (count--) { writeb(baddr, *addr++); baddr += 1; } } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) { outw(baddr, *addr++); baddr += 2; } else while (count--) { writew(baddr, *addr++); baddr += 2; } } 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) { bus_addr_t baddr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) { outl(baddr, *addr++); baddr += 4; } else while (count--) { writel(baddr, *addr++); baddr += 4; } } #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_addr_t addr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) outb(addr, value); else while (count--) writeb(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_addr_t addr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) outw(addr, value); else while (count--) writew(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_addr_t addr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) while (count--) outl(addr, value); else while (count--) writel(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_addr_t addr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) for (; count != 0; count--, addr++) outb(addr, value); else for (; count != 0; count--, addr++) writeb(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_addr_t addr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) for (; count != 0; count--, addr += 2) outw(addr, value); else for (; count != 0; count--, addr += 2) writew(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_addr_t addr = bsh + offset; if (tag == MIPS_BUS_SPACE_IO) for (; count != 0; count--, addr += 4) outl(addr, value); else for (; count != 0; count--, addr += 4) writel(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_addr_t addr1 = bsh1 + off1; bus_addr_t addr2 = bsh2 + off2; if (tag == MIPS_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++) writeb(addr2, readb(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += (count - 1), addr2 += (count - 1); count != 0; count--, addr1--, addr2--) writeb(addr2, readb(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_addr_t addr1 = bsh1 + off1; bus_addr_t addr2 = bsh2 + off2; if (tag == MIPS_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) writew(addr2, readw(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += 2 * (count - 1), addr2 += 2 * (count - 1); count != 0; count--, addr1 -= 2, addr2 -= 2) writew(addr2, readw(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_addr_t addr1 = bsh1 + off1; bus_addr_t addr2 = bsh2 + off2; if (tag == MIPS_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) writel(addr2, readl(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += 4 * (count - 1), addr2 += 4 * (count - 1); count != 0; count--, addr1 -= 4, addr2 -= 4) writel(addr2, readl(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) { #if 0 #ifdef __GNUCLIKE_ASM if (flags & BUS_SPACE_BARRIER_READ) __asm __volatile("lock; addl $0,0(%%rsp)" : : : "memory"); else __asm __volatile("" : : : "memory"); #endif #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 /* * Stream accesses are the same as normal accesses on amd64; 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 /* !TARGET_OCTEON */ #endif /* !_MACHINE_BUS_H_ */