/* $NetBSD: bus.h,v 1.2 2016/09/15 21:45:37 jdolecek Exp $ */ /*- * Copyright (c) 1996, 1997, 1998, 2001 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. */ #ifndef _IA64_BUS_H_ #define _IA64_BUS_H_ #include #include #include #ifdef BUS_SPACE_DEBUG /* * Macros for sanity-checking the aligned-ness of pointers passed to * bus space ops. These are not strictly necessary on the x86, but * could lead to performance improvements, and help catch problems * with drivers that would creep up on other architectures. */ #define __BUS_SPACE_ALIGNED_ADDRESS(p, t) \ ((((u_long)(p)) & (sizeof(t)-1)) == 0) #define __BUS_SPACE_ADDRESS_SANITY(p, t, d) \ ({ \ if (__BUS_SPACE_ALIGNED_ADDRESS((p), t) == 0) { \ printf("%s 0x%lx not aligned to %d bytes %s:%d\n", \ d, (u_long)(p), sizeof(t), __FILE__, __LINE__); \ } \ (void) 0; \ }) #define BUS_SPACE_ALIGNED_POINTER(p, t) __BUS_SPACE_ALIGNED_ADDRESS(p, t) #else #define __BUS_SPACE_ADDRESS_SANITY(p,t,d) (void) 0 #define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t) #endif /* BUS_SPACE_DEBUG */ /* * bus_space_map flags */ #define BUS_SPACE_MAP_CACHEABLE 0x01 #define BUS_SPACE_MAP_LINEAR 0x02 #define BUS_SPACE_MAP_PREFETCHABLE 0x04 /* * Derived from x86 implementation, ia64 has both i/o and mem spaces * These values are for bus space tag. */ #define IA64_BUS_SPACE_IO 0 /* space is i/o space */ #define IA64_BUS_SPACE_MEM 1 /* space is mem space */ #define __BUS_SPACE_HAS_STREAM_METHODS 1 /* * Bus address and size types */ typedef u_long bus_addr_t; typedef u_long bus_size_t; /* * Access methods for bus resources and address space. */ typedef int bus_space_tag_t; typedef u_long bus_space_handle_t; /* map/unmap */ int ia64_bus_space_map(bus_space_tag_t, bus_addr_t, bus_size_t, int, bus_space_handle_t *); void ia64_bus_space_unmap(bus_space_tag_t, bus_space_handle_t, bus_size_t); int ia64_bus_space_subregion(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_size_t, bus_space_handle_t *); #define bus_space_map(t, a, s, f, hp) \ ia64_bus_space_map((t), (a), (s), (f), (hp)) #define bus_space_unmap(t, h, s) \ ia64_bus_space_unmap((t), (h), (s)) #define bus_space_subregion(t, h, o, s, nhp) \ ia64_bus_space_subregion((t), (h), (o), (s), (nhp)) /* vaddr */ #define bus_space_vaddr(t, h) \ ((t) == IA64_BUS_SPACE_MEM ? (void *)(h) : (void *)0) /* map to user space */ paddr_t ia64_bus_space_mmap(bus_space_tag_t, bus_addr_t, off_t, int, int); #define bus_space_mmap(t, b, o, p, f) \ ia64_bus_space_mmap((t), (b), (o), (p), (f)) /* alloc/free */ int ia64_bus_space_alloc(bus_space_tag_t, bus_addr_t, bus_addr_t, bus_size_t, bus_size_t, bus_size_t, int, bus_addr_t *, bus_space_handle_t *); void ia64_bus_space_free(bus_space_tag_t, bus_space_handle_t, bus_size_t); #define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \ ia64_bus_space__alloc((t), (rs), (re), (s), (a), (b), (f), (ap), (hp)) #define bus_space_free(t, h, s) \ ia64_bus_space_free((t), (h), (s)) /* * uintN_t bus_space_read_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset); * * Read a 1, 2, 4, or 8 byte quantity from bus space * described by tag/handle/offset. */ #define bus_space_read_1(t, h, o) \ ((t) == IA64_BUS_SPACE_IO ? (inb((h) + (o))) :\ (*(volatile uint8_t *)((h) + (o)))) #define bus_space_read_2(t, h, o) \ (__BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"), \ ((t) == IA64_BUS_SPACE_IO ? (inw((h) + (o))) : \ (*(volatile uint16_t *)((h) + (o))))) #define bus_space_read_4(t, h, o) \ (__BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"), \ ((t) == IA64_BUS_SPACE_IO ? (inl((h) + (o))) : \ (*(volatile uint32_t *)((h) + (o))))) #define bus_space_read_8(t, h, o) \ (__BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"), \ ((t) == IA64_BUS_SPACE_IO ? \ ({ printf("%s: can't read 8bytes from I/O space\n", __FUNCTION__); 0;}) : \ (*(volatile uint64_t *)((h) + (o))))) #define bus_space_read_stream_1 bus_space_read_1 #define bus_space_read_stream_2 bus_space_read_2 #define bus_space_read_stream_4 bus_space_read_4 #define bus_space_read_stream_8 bus_space_read_8 /* * void bus_space_read_multi_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * uintN_t *addr, size_t count); * * Read `count' 1, 2, 4, or 8 byte quantities from bus space * described by tag/handle/offset and copy into buffer provided. */ #define bus_space_read_multi_1(t, h, o, ptr, cnt) \ do { \ if ((t) == IA64_BUS_SPACE_IO) { \ insb((h) + (o), (ptr), (cnt)); \ } else { \ int __i; \ volatile uint8_t *__p = (uint8_t *)((h) + (o)); \ uint8_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_multi_2(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint16_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ insw((h) + (o), (ptr), (cnt)); \ } else { \ int __i; \ volatile uint16_t *__p = (uint16_t *)((h) + (o)); \ uint16_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_multi_4(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint32_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ insl((h) + (o), (ptr), (cnt)); \ } else { \ int __i; \ volatile uint32_t *__p = (uint32_t *)((h) + (o)); \ uint32_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_multi_8(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint64_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ printf("%s: can't read 8bytes from I/O space\n", \ __FUNCTION__); \ } else { \ int __i; \ volatile uint64_t *__p = (uint64_t *)((h) + (o)); \ uint64_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_multi_stream_1 bus_space_read_multi_1 #define bus_space_read_multi_stream_2 bus_space_read_multi_2 #define bus_space_read_multi_stream_4 bus_space_read_multi_4 #define bus_space_read_multi_stream_8 bus_space_read_multi_8 /* * void bus_space_read_region_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * uintN_t *addr, size_t count); * * 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. */ #define bus_space_read_region_1(t, h, o, ptr, cnt) \ do { \ if ((t) == IA64_BUS_SPACE_IO) { \ int __i; \ volatile bus_addr_t __port = (h) + (o); \ uint8_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) { \ *__dst++ = inb(__port); \ __port++; \ } \ } else { \ int __i; \ volatile uint8_t *__p = (uint8_t *)((h) + (o)); \ uint8_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_region_2(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint16_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ int __i; \ volatile bus_addr_t __port = (h) + (o); \ uint8_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) { \ *__dst++ = inb(__port); \ __port += 2; \ } \ } else { \ int __i; \ volatile uint16_t *__p = (uint16_t *)((h) + (o)); \ uint16_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_region_4(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint32_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ int __i; \ volatile bus_addr_t __port = (h) + (o); \ uint8_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) { \ *__dst++ = inb(__port); \ __port += 4; \ } \ } else { \ volatile uint32_t *__p = (uint32_t *)((h) + (o)); \ uint32_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_region_8(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint64_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ printf("%s: can't read 8bytes from I/O space\n", \ __FUNCTION__); \ } else { \ volatile uint64_t *__p = (uint64_t *)((h) + (o)); \ uint64_t *__dst = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__dst++ = *__p++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_read_region_stream_1 bus_space_read_region_1 #define bus_space_read_region_stream_2 bus_space_read_region_2 #define bus_space_read_region_stream_4 bus_space_read_region_4 #define bus_space_read_region_stream_8 bus_space_read_region_8 /* * void bus_space_write_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * uintN_t value); * * Write the 1, 2, 4, or 8 byte value `value' to bus space * described by tag/handle/offset. */ #define bus_space_write_1(t, h, o, v) \ do { \ if ((t) == IA64_BUS_SPACE_IO) \ outb((h) + (o), (v)); \ else \ ((void)(*(volatile uint8_t *)((h) + (o)) = (v))); \ } while (/* CONSTCOND */ 0) #define bus_space_write_2(t, h, o, v) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) \ outw((h) + (o), (v)); \ else \ ((void)(*(volatile uint16_t *)((h) + (o)) = (v))); \ } while (/* CONSTCOND */ 0) #define bus_space_write_4(t, h, o, v) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) \ outl((h) + (o), (v)); \ else \ ((void)(*(volatile uint32_t *)((h) + (o)) = (v))); \ } while (/* CONSTCOND */ 0) #define bus_space_write_8(t, h, o, v) \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO ? \ printf("%s: can't write 8bytes to I/O space\n", __FUNCTION__); : \ (*(volatile uint64_t *)((h) + (o)) = (v))) #define bus_space_write_stream_1 bus_space_write_1 #define bus_space_write_stream_2 bus_space_write_2 #define bus_space_write_stream_4 bus_space_write_4 #define bus_space_write_stream_8 bus_space_write_8 /* * void bus_space_write_multi_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * const uintN_t *addr, size_t count); * * Write `count' 1, 2, 4, or 8 byte quantities from the buffer * provided to bus space described by tag/handle/offset. */ #define bus_space_write_multi_1(t, h, o, ptr, cnt) \ do { \ if ((t) == IA64_BUS_SPACE_IO) { \ outsb((h) + (o), (ptr), (cnt)); \ } else { \ int __i; \ volatile uint8_t *__p = (uint8_t *)((h) + (o)); \ uint8_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_multi_2(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint16_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ outsw((h) + (o), (ptr), (cnt)); \ } else { \ int __i; \ volatile uint16_t *__p = (uint16_t *)((h) + (o)); \ uint16_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_multi_4(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint32_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ outsl((h) + (o), (ptr), (cnt)); \ } else { \ int __i; \ volatile uint32_t *__p = (uint32_t *)((h) + (o)); \ uint32_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_multi_8(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint64_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ printf("%s: can't write 8bytes to I/O space\n", __FUNCTION__);\ } else { \ int __i; \ volatile uint64_t *__p = (uint64_t *)((h) + (o)); \ uint64_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_multi_stream_1 bus_space_write_multi_1 #define bus_space_write_multi_stream_2 bus_space_write_multi_2 #define bus_space_write_multi_stream_4 bus_space_write_multi_4 #define bus_space_write_multi_stream_8 bus_space_write_multi_8 /* * void bus_space_write_region_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, * const uintN_t *addr, size_t count); * * Write `count' 1, 2, 4, or 8 byte quantities from the buffer provided * to bus space described by tag/handle starting at `offset'. */ #define bus_space_write_region_1(t, h, o, ptr, cnt) \ do { \ if ((t) == IA64_BUS_SPACE_IO) { \ int __i; \ volatile bus_addr_t __port = (h) + (o); \ uint8_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) { \ outb(__port, *__src); \ __port++; \ __src++; \ } \ } else { \ int __i; \ volatile uint8_t *__p = (uint8_t *)((h) + (o)); \ uint8_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p++ = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_region_2(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint16_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ int __i; \ volatile bus_addr_t __port = (h) + (o); \ uint16_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) { \ outw(__port, *__src); \ __port += 2; \ __src++; \ } \ } else { \ int __i; \ volatile uint16_t *__p = (uint16_t *)((h) + (o)); \ uint16_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p++ = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_region_4(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint32_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ int __i; \ volatile bus_addr_t __port = (h) + (o); \ uint32_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) { \ outl(__port, *__src); \ __port += 4; \ __src++; \ } \ } else { \ int __i; \ volatile uint32_t *__p = (uint32_t *)(h) + (o); \ uint32_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p++ = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_region_8(t, h, o, ptr, cnt) \ do { \ __BUS_SPACE_ADDRESS_SANITY((ptr), uint64_t, "buffer"); \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ if ((t) == IA64_BUS_SPACE_IO) { \ printf("%s: can't write 8bytes to I/O space\n", __FUNCTION__);\ } else { \ int __i; \ volatile uint64_t *__p = (uint64_t *)((h) + (o)); \ uint64_t *__src = (ptr); \ for (__i = 0; __i < (cnt); __i++) \ *__p++ = *__src++; \ } \ } while (/* CONSTCOND */ 0) #define bus_space_write_region_stream_1 bus_space_write_region_1 #define bus_space_write_region_stream_2 bus_space_write_region_2 #define bus_space_write_region_stream_4 bus_space_write_region_4 #define bus_space_write_region_stream_8 bus_space_write_region_8 /* * void bus_space_set_multi_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, uintN_t val, * size_t count); * * Write the 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle/offset `count' times. */ static __inline void ia64_bus_space_set_multi_1(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint8_t, size_t); static __inline void ia64_bus_space_set_multi_2(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint16_t, size_t); static __inline void ia64_bus_space_set_multi_4(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint32_t, size_t); static __inline void ia64_bus_space_set_multi_8(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint64_t, size_t); #define bus_space_set_multi_1(t, h, o, v, c) \ ia64_bus_space_set_multi_1((t), (h), (o), (v), (c)) #define bus_space_set_multi_2(t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ ia64_bus_space_set_multi_2((t), (h), (o), (v), (c)); \ } while (/* CONSTCOND */ 0) #define bus_space_set_multi_4(t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ ia64_bus_space_set_multi_4((t), (h), (o), (v), (c)); \ } while (/* CONSTCOND */ 0) #define bus_space_set_multi_8(t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ ia64_bus_space_set_multi_8((t), (h), (o), (v), (c)); \ } while (/* CONSTCOND */ 0) static __inline void ia64_bus_space_set_multi_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) while (c--) outb(addr, v); else while (c--) *(volatile uint8_t *)(addr) = v; } static __inline void ia64_bus_space_set_multi_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) while (c--) outw(addr, v); else while (c--) *(volatile uint16_t *)(addr) = v; } static __inline void ia64_bus_space_set_multi_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) while (c--) outl(addr, v); else while (c--) *(volatile uint32_t *)(addr) = v; } static __inline void ia64_bus_space_set_multi_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) printf("%s: can't write 8bytes to I/O space\n", __FUNCTION__); else while (c--) *(volatile uint64_t *)(addr) = v; } /* * void bus_space_set_region_N(bus_space_tag_t tag, * bus_space_handle_t bsh, bus_size_t offset, uintN_t val, * size_t count); * * Write `count' 1, 2, 4, or 8 byte value `val' to bus space described * by tag/handle starting at `offset'. */ static __inline void ia64_bus_space_set_region_1(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint8_t, size_t); static __inline void ia64_bus_space_set_region_2(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint16_t, size_t); static __inline void ia64_bus_space_set_region_4(bus_space_tag_t, bus_space_handle_t, bus_size_t, uint32_t, size_t); #define bus_space_set_region_1(t, h, o, v, c) \ ia64_bus_space_set_region_1((t), (h), (o), (v), (c)) #define bus_space_set_region_2(t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint16_t, "bus addr"); \ ia64_bus_space_set_region_2((t), (h), (o), (v), (c)); \ } while (/* CONSTCOND */ 0) #define bus_space_set_region_4(t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint32_t, "bus addr"); \ ia64_bus_space_set_region_4((t), (h), (o), (v), (c)); \ } while (/* CONSTCOND */ 0) #define bus_space_set_region_8(t, h, o, v, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h) + (o), uint64_t, "bus addr"); \ ia64_bus_space_set_region_8((t), (h), (o), (v), (c)); \ } while (/* CONSTCOND */ 0) static __inline void ia64_bus_space_set_region_1(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint8_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) for (; c != 0; c--, addr++) outb(addr, v); else for (; c != 0; c--, addr++) *(volatile uint8_t *)(addr) = v; } static __inline void ia64_bus_space_set_region_2(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint16_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) for (; c != 0; c--, addr += 2) outw(addr, v); else for (; c != 0; c--, addr += 2) *(volatile uint16_t *)(addr) = v; } static __inline void ia64_bus_space_set_region_4(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint32_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) for (; c != 0; c--, addr += 4) outl(addr, v); else for (; c != 0; c--, addr += 4) *(volatile uint32_t *)(addr) = v; } static __inline void ia64_bus_space_set_region_8(bus_space_tag_t t, bus_space_handle_t h, bus_size_t o, uint64_t v, size_t c) { bus_addr_t addr = h + o; if (t == IA64_BUS_SPACE_IO) printf("%s: can't write 8bytes to I/O space\n", __FUNCTION__); else for (; c != 0; c--, addr += 8) *(volatile uint32_t *)(addr) = v; } /* * void bus_space_copy_region_N(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); * * 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 ia64_bus_space_copy_region_1(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, size_t); static __inline void ia64_bus_space_copy_region_2(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, size_t); static __inline void ia64_bus_space_copy_region_4(bus_space_tag_t, bus_space_handle_t, bus_size_t, bus_space_handle_t, bus_size_t, size_t); #define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \ ia64_bus_space_copy_region_1((t), (h1), (o1), (h2), (o2), (c)) #define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h1) + (o1), uint16_t, "bus addr 1"); \ __BUS_SPACE_ADDRESS_SANITY((h2) + (o2), uint16_t, "bus addr 2"); \ ia64_bus_space_copy_region_2((t), (h1), (o1), (h2), (o2), (c)); \ } while (/* CONSTCOND */ 0) #define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h1) + (o1), uint32_t, "bus addr 1"); \ __BUS_SPACE_ADDRESS_SANITY((h2) + (o2), uint32_t, "bus addr 2"); \ ia64_bus_space_copy_region_4((t), (h1), (o1), (h2), (o2), (c)); \ } while (/* CONSTCOND */ 0) #define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \ do { \ __BUS_SPACE_ADDRESS_SANITY((h1) + (o1), uint64_t, "bus addr 1"); \ __BUS_SPACE_ADDRESS_SANITY((h2) + (o2), uint64_t, "bus addr 2"); \ ia64_bus_space_copy_region_8((t), (h1), (o1), (h2), (o2), (c)); \ } while (/* CONSTCOND */ 0) static __inline void ia64_bus_space_copy_region_1(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, size_t c) { bus_addr_t addr1 = h1 + o1; bus_addr_t addr2 = h2 + o2; if (t == IA64_BUS_SPACE_IO) { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1++, addr2++) outb(addr2, inb(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += (c - 1), addr2 += (c - 1); c != 0; c--, addr1--, addr2--) outb(addr2, inb(addr1)); } } else { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1++, addr2++) *(volatile uint8_t *)(addr2) = *(volatile uint8_t *)(addr1); } else { /* dest after src: copy backwards */ for (addr1 += (c - 1), addr2 += (c - 1); c != 0; c--, addr1--, addr2--) *(volatile uint8_t *)(addr2) = *(volatile uint8_t *)(addr1); } } } static __inline void ia64_bus_space_copy_region_2(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, size_t c) { bus_addr_t addr1 = h1 + o1; bus_addr_t addr2 = h2 + o2; if (t == IA64_BUS_SPACE_IO) { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1 += 2, addr2 += 2) outw(addr2, inw(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += 2 * (c - 1), addr2 += 2 * (c - 1); c != 0; c--, addr1 -= 2, addr2 -= 2) outw(addr2, inw(addr1)); } } else { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1 += 2, addr2 += 2) *(volatile uint16_t *)(addr2) = *(volatile uint16_t *)(addr1); } else { /* dest after src: copy backwards */ for (addr1 += 2 * (c - 1), addr2 += 2 * (c - 1); c != 0; c--, addr1 -= 2, addr2 -= 2) *(volatile uint16_t *)(addr2) = *(volatile uint16_t *)(addr1); } } } static __inline void ia64_bus_space_copy_region_4(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, size_t c) { bus_addr_t addr1 = h1 + o1; bus_addr_t addr2 = h2 + o2; if (t == IA64_BUS_SPACE_IO) { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1 += 4, addr2 += 4) outl(addr2, inl(addr1)); } else { /* dest after src: copy backwards */ for (addr1 += 4 * (c - 1), addr2 += 4 * (c - 1); c != 0; c--, addr1 -= 4, addr2 -= 4) outl(addr2, inl(addr1)); } } else { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1 += 4, addr2 += 4) *(volatile uint32_t *)(addr2) = *(volatile uint32_t *)(addr1); } else { /* dest after src: copy backwards */ for (addr1 += 4 * (c - 1), addr2 += 4 * (c - 1); c != 0; c--, addr1 -= 4, addr2 -= 4) *(volatile uint32_t *)(addr2) = *(volatile uint32_t *)(addr1); } } } static __inline void ia64_bus_space_copy_region_8(bus_space_tag_t t, bus_space_handle_t h1, bus_size_t o1, bus_space_handle_t h2, bus_size_t o2, size_t c) { bus_addr_t addr1 = h1 + o1; bus_addr_t addr2 = h2 + o2; if (t == IA64_BUS_SPACE_IO) { printf("%s: can't write 8bytes to I/O space\n", __FUNCTION__); } else { if (addr1 >= addr2) { /* src after dest: copy forward */ for (; c != 0; c--, addr1 += 8, addr2 += 8) *(volatile uint64_t *)(addr2) = *(volatile uint64_t *)(addr1); } else { /* dest after src: copy backwards */ for (addr1 += 8 * (c - 1), addr2 += 8 * (c - 1); c != 0; c--, addr1 -= 8, addr2 -= 8) *(volatile uint64_t *)(addr2) = *(volatile uint64_t *)(addr1); } } } /* * 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: the x86 does not currently require barriers, but we must * provide the flags to MI code. */ #define bus_space_barrier(t, h, o, l, f) \ ia64_bus_space_barrier((t), (h), (o), (l), (f)) #define BUS_SPACE_BARRIER_READ 0x01 #define BUS_SPACE_BARRIER_WRITE 0x02 static __inline void ia64_bus_space_barrier(bus_space_tag_t t, bus_space_handle_t handle, bus_size_t offset, bus_size_t length, int flags) { if (t == IA64_BUS_SPACE_IO) return; switch (flags) { case BUS_SPACE_BARRIER_READ: __asm volatile("mf" ::: "memory"); break; case BUS_SPACE_BARRIER_WRITE: __asm volatile("mf" ::: "memory"); break; case BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE: __asm volatile("mf" ::: "memory"); break; default: printf("%s: Unknown barrier %d\n", __FUNCTION__, flags); break; } } /* * Flags used in various bus DMA methods. */ #define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */ #define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */ #define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */ #define BUS_DMA_COHERENT 0x004 /* hint: map memory DMA coherent */ #define BUS_DMA_STREAMING 0x008 /* hint: sequential, unidirectional */ #define BUS_DMA_BUS1 0x010 /* placeholders for bus functions... */ #define BUS_DMA_BUS2 0x020 #define BUS_DMA_BUS3 0x040 #define BUS_DMA_BUS4 0x080 #define BUS_DMA_READ 0x100 /* mapping is device -> memory only */ #define BUS_DMA_WRITE 0x200 /* mapping is memory -> device only */ #define BUS_DMA_NOCACHE 0x400 /* hint: map non-cached memory */ /* Forwards needed by prototypes below. */ struct mbuf; struct uio; /* * Operations performed by bus_dmamap_sync(). */ #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ typedef struct ia64_bus_dma_tag *bus_dma_tag_t; typedef struct ia64_bus_dmamap *bus_dmamap_t; #define BUS_DMA_TAG_VALID(t) ((t) != (bus_dma_tag_t)0) /* * bus_dma_segment_t * * Describes a single contiguous DMA transaction. Values * are suitable for programming into DMA registers. */ struct ia64_bus_dma_segment { bus_addr_t ds_addr; /* DMA address */ bus_size_t ds_len; /* length of transfer */ }; typedef struct ia64_bus_dma_segment bus_dma_segment_t; /* * bus_dma_tag_t * * A machine-dependent opaque type describing the implementation of * DMA for a given bus. */ struct ia64_bus_dma_tag { /* * The `bounce threshold' is checked while we are loading * the DMA map. If the physical address of the segment * exceeds the threshold, an error will be returned. The * caller can then take whatever action is necessary to * bounce the transfer. If this value is 0, it will be * ignored. */ bus_addr_t _bounce_thresh; bus_addr_t _bounce_alloc_lo; bus_addr_t _bounce_alloc_hi; int (*_may_bounce)(bus_dma_tag_t, bus_dmamap_t, int, int *); /* * DMA mapping methods. */ int (*_dmamap_create)(bus_dma_tag_t, bus_size_t, int, bus_size_t, bus_size_t, int, bus_dmamap_t *); void (*_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t); int (*_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t, struct proc *, int); int (*_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t, struct mbuf *, int); int (*_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t, struct uio *, int); int (*_dmamap_load_raw)(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *, int, bus_size_t, int); void (*_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t); void (*_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, int); /* * DMA memory utility functions. */ int (*_dmamem_alloc)(bus_dma_tag_t, bus_size_t, bus_size_t, bus_size_t, bus_dma_segment_t *, int, int *, int); void (*_dmamem_free)(bus_dma_tag_t, bus_dma_segment_t *, int); int (*_dmamem_map)(bus_dma_tag_t, bus_dma_segment_t *, int, size_t, void **, int); void (*_dmamem_unmap)(bus_dma_tag_t, void *, size_t); paddr_t (*_dmamem_mmap)(bus_dma_tag_t, bus_dma_segment_t *, int, off_t, int, int); }; static __inline void bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t, bus_size_t, int) __attribute__((__unused__)); #define bus_dmamap_create(t, s, n, m, b, f, p) \ (*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p)) #define bus_dmamap_destroy(t, p) \ (*(t)->_dmamap_destroy)((t), (p)) #define bus_dmamap_load(t, m, b, s, p, f) \ (*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f)) #define bus_dmamap_load_mbuf(t, m, b, f) \ (*(t)->_dmamap_load_mbuf)((t), (m), (b), (f)) #define bus_dmamap_load_uio(t, m, u, f) \ (*(t)->_dmamap_load_uio)((t), (m), (u), (f)) #define bus_dmamap_load_raw(t, m, sg, n, s, f) \ (*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f)) #define bus_dmamap_unload(t, p) \ (*(t)->_dmamap_unload)((t), (p)) static __inline void bus_dmamap_sync(bus_dma_tag_t t, bus_dmamap_t p, bus_addr_t o, bus_size_t l, int ops) { /* if (ops & BUS_DMASYNC_POSTREAD) x86_lfence(); */ if (t->_dmamap_sync) (*t->_dmamap_sync)(t, p, o, l, ops); } #define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \ (*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f)) #define bus_dmamem_free(t, sg, n) \ (*(t)->_dmamem_free)((t), (sg), (n)) #define bus_dmamem_map(t, sg, n, s, k, f) \ (*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f)) #define bus_dmamem_unmap(t, k, s) \ (*(t)->_dmamem_unmap)((t), (k), (s)) #define bus_dmamem_mmap(t, sg, n, o, p, f) \ (*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f)) /* * bus_dmamap_t * * Describes a DMA mapping. */ struct ia64_bus_dmamap { /* * PRIVATE MEMBERS: not for use by machine-independent code. */ bus_size_t _dm_size; /* largest DMA transfer mappable */ int _dm_segcnt; /* number of segs this map can map */ bus_size_t _dm_maxmaxsegsz; /* fixed largest possible segment */ bus_size_t _dm_boundary; /* don't cross this */ bus_addr_t _dm_bounce_thresh; /* bounce threshold; see tag */ int _dm_flags; /* misc. flags */ void *_dm_cookie; /* cookie for bus-specific functions */ /* * PUBLIC MEMBERS: these are used by machine-independent code. */ bus_size_t dm_maxsegsz; /* largest possible segment */ bus_size_t dm_mapsize; /* size of the mapping */ int dm_nsegs; /* # valid segments in mapping */ bus_dma_segment_t dm_segs[1]; /* segments; variable length */ }; #endif /* _IA64_BUS_H_ */