1 /*- 2 * Copyright (c) 2000 Michael Smith 3 * Copyright (c) 2000 BSDi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 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 AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 30 /* 31 * 6.2 : Memory Management 32 */ 33 34 #include "acpi.h" 35 36 #include <sys/kernel.h> 37 #include <sys/malloc.h> 38 #include <vm/vm.h> 39 #include <vm/pmap.h> 40 41 MALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool"); 42 43 void * 44 AcpiOsAllocate(UINT32 Size) 45 { 46 return(malloc(Size, M_ACPICA, M_NOWAIT)); 47 } 48 49 void * 50 AcpiOsCallocate (UINT32 Size) 51 { 52 void *alloc; 53 54 alloc = malloc(Size, M_ACPICA, M_NOWAIT); 55 if (alloc != NULL) 56 bzero(alloc, Size); 57 return(alloc); 58 } 59 60 void 61 AcpiOsFree (void *Memory) 62 { 63 free(Memory, M_ACPICA); 64 } 65 66 ACPI_STATUS 67 AcpiOsMapMemory (void *PhysicalAddress, UINT32 Length, void **LogicalAddress) 68 { 69 *LogicalAddress = pmap_mapdev((vm_offset_t)PhysicalAddress, Length); 70 if (*LogicalAddress == NULL) 71 return(AE_BAD_ADDRESS); 72 return(AE_OK); 73 } 74 75 void 76 AcpiOsUnmapMemory (void *LogicalAddress, UINT32 Length) 77 { 78 pmap_unmapdev((vm_offset_t)LogicalAddress, Length); 79 } 80 81 /* 82 * There is no clean way to do this. We make the charitable assumption 83 * that callers will not pass garbage to us. 84 */ 85 BOOLEAN 86 AcpiOsReadable (void *Pointer, UINT32 Length) 87 { 88 return(TRUE); 89 } 90 91 BOOLEAN 92 AcpiOsWritable (void *Pointer, UINT32 Length) 93 { 94 return(TRUE); 95 } 96 97