1 /*- 2 * Copyright (c) 2015 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #if defined(KASAN) || defined(KCSAN) 28 #define SAN_RUNTIME 29 #endif 30 31 #include <sys/cdefs.h> 32 __FBSDID("$FreeBSD$"); 33 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <x86/bus.h> 37 38 #include <vm/vm.h> 39 #include <vm/pmap.h> 40 41 /* 42 * Implementation of bus_space_map(), which effectively is a thin 43 * wrapper around pmap_mapdev() for memory mapped I/O space. It's 44 * implemented here and not in <x86/bus.h> to avoid pollution. 45 */ 46 int 47 bus_space_map(bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, 48 int flags __unused, bus_space_handle_t *bshp) 49 { 50 51 *bshp = (tag == X86_BUS_SPACE_MEM) 52 ? (uintptr_t)pmap_mapdev(addr, size) 53 : addr; 54 return (0); 55 } 56 57 void 58 bus_space_unmap(bus_space_tag_t tag, bus_space_handle_t bsh, bus_size_t size) 59 { 60 61 if (tag == X86_BUS_SPACE_MEM) 62 pmap_unmapdev(bsh, size); 63 } 64