OsdMemory.c revision 150003
175111Sfenner/*- 275111Sfenner * Copyright (c) 2000 Mitsaru Iwasaki 375111Sfenner * Copyright (c) 2000 Michael Smith 4146772Ssam * Copyright (c) 2000 BSDi 5146772Ssam * All rights reserved. 698529Sfenner * 798529Sfenner * Redistribution and use in source and binary forms, with or without 898529Sfenner * modification, are permitted provided that the following conditions 998529Sfenner * are met: 1098529Sfenner * 1. Redistributions of source code must retain the above copyright 1198529Sfenner * notice, this list of conditions and the following disclaimer. 1298529Sfenner * 2. Redistributions in binary form must reproduce the above copyright 1398529Sfenner * notice, this list of conditions and the following disclaimer in the 14146772Ssam * documentation and/or other materials provided with the distribution. 15146772Ssam * 16146772Ssam * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17172681Smlaier * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18181690Sed * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19172681Smlaier * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20146772Ssam * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21146772Ssam * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22146772Ssam * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23172681Smlaier * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24172681Smlaier * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25172681Smlaier * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26172681Smlaier * SUCH DAMAGE. 27172681Smlaier */ 28172681Smlaier 29146772Ssam/* 30146772Ssam * 6.2 : Memory Management 31146772Ssam */ 32146772Ssam 33146772Ssam#include <sys/cdefs.h> 34146772Ssam__FBSDID("$FreeBSD: head/sys/dev/acpica/Osd/OsdMemory.c 150003 2005-09-11 18:39:03Z obrien $"); 35146772Ssam 36146772Ssam#include <contrib/dev/acpica/acpi.h> 3775111Sfenner 3875111Sfenner#include <sys/kernel.h> 39172681Smlaier#include <sys/malloc.h> 40172681Smlaier#include <vm/vm.h> 4175111Sfenner#include <vm/pmap.h> 42146772Ssam 43146772SsamMALLOC_DEFINE(M_ACPICA, "acpica", "ACPI CA memory pool"); 4475111Sfenner 45146772Ssamvoid * 46146772SsamAcpiOsAllocate(ACPI_SIZE Size) 4775111Sfenner{ 48146772Ssam return (malloc(Size, M_ACPICA, M_NOWAIT)); 49146772Ssam} 50146772Ssam 51146772Ssamvoid 5298529SfennerAcpiOsFree(void *Memory) 5398529Sfenner{ 54146772Ssam free(Memory, M_ACPICA); 55146772Ssam} 56146772Ssam 57146772SsamACPI_STATUS 58146772SsamAcpiOsMapMemory(ACPI_PHYSICAL_ADDRESS PhysicalAddress, ACPI_SIZE Length, 59146772Ssam void **LogicalAddress) 60146772Ssam{ 6175111Sfenner *LogicalAddress = pmap_mapdev((vm_offset_t)PhysicalAddress, Length); 6275111Sfenner if (*LogicalAddress == NULL) 63172681Smlaier return (AE_BAD_ADDRESS); 64172681Smlaier return (AE_OK); 65172681Smlaier} 66172681Smlaier 67146772Ssamvoid 68146772SsamAcpiOsUnmapMemory(void *LogicalAddress, ACPI_SIZE Length) 69146772Ssam{ 70172681Smlaier pmap_unmapdev((vm_offset_t)LogicalAddress, Length); 71172681Smlaier} 72172681Smlaier 73146772SsamACPI_STATUS 74146772SsamAcpiOsGetPhysicalAddress(void *LogicalAddress, 75146772Ssam ACPI_PHYSICAL_ADDRESS *PhysicalAddress) 76172681Smlaier{ 77172681Smlaier /* We can't necessarily do this, so cop out. */ 78172681Smlaier return (AE_BAD_ADDRESS); 79146772Ssam} 80146772Ssam 81146772Ssam/* 82146772Ssam * There is no clean way to do this. We make the charitable assumption 83146772Ssam * that callers will not pass garbage to us. 84146772Ssam */ 85146772SsamBOOLEAN 86146772SsamAcpiOsReadable (void *Pointer, ACPI_SIZE Length) 87146772Ssam{ 88146772Ssam return (TRUE); 89146772Ssam} 90146772Ssam 91146772SsamBOOLEAN 92146772SsamAcpiOsWritable (void *Pointer, ACPI_SIZE Length) 93146772Ssam{ 94146772Ssam return (TRUE); 95146772Ssam} 96146772Ssam 97146772SsamACPI_STATUS 98146772SsamAcpiOsReadMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 *Value, UINT32 Width) 99146772Ssam{ 100146772Ssam void *LogicalAddress; 101146772Ssam 102146772Ssam if (AcpiOsMapMemory(Address, Width / 8, &LogicalAddress) != AE_OK) 103146772Ssam return (AE_NOT_EXIST); 104146772Ssam 105146772Ssam switch (Width) { 106146772Ssam case 8: 107146772Ssam *(u_int8_t *)Value = (*(volatile u_int8_t *)LogicalAddress); 108146772Ssam break; 109172681Smlaier case 16: 110172681Smlaier *(u_int16_t *)Value = (*(volatile u_int16_t *)LogicalAddress); 111172681Smlaier break; 112146772Ssam case 32: 11375111Sfenner *(u_int32_t *)Value = (*(volatile u_int32_t *)LogicalAddress); 11475111Sfenner break; 115146772Ssam case 64: 11675111Sfenner *(u_int64_t *)Value = (*(volatile u_int64_t *)LogicalAddress); 11775111Sfenner break; 118146772Ssam default: 11975111Sfenner /* debug trap goes here */ 12075111Sfenner break; 121146772Ssam } 12275111Sfenner 12375111Sfenner AcpiOsUnmapMemory(LogicalAddress, Width / 8); 124146772Ssam 125146772Ssam return (AE_OK); 12675111Sfenner} 127146772Ssam 128146772SsamACPI_STATUS 129146772SsamAcpiOsWriteMemory(ACPI_PHYSICAL_ADDRESS Address, UINT32 Value, UINT32 Width) 130146772Ssam{ 131146772Ssam void *LogicalAddress; 132146772Ssam 133146772Ssam if (AcpiOsMapMemory(Address, Width / 8, &LogicalAddress) != AE_OK) 134146772Ssam return (AE_NOT_EXIST); 135146772Ssam 136146772Ssam switch (Width) { 137146772Ssam case 8: 138146772Ssam (*(volatile u_int8_t *)LogicalAddress) = Value & 0xff; 139146772Ssam break; 140146772Ssam case 16: 141146772Ssam (*(volatile u_int16_t *)LogicalAddress) = Value & 0xffff; 14275111Sfenner break; 14375111Sfenner case 32: 14475111Sfenner (*(volatile u_int32_t *)LogicalAddress) = Value & 0xffffffff; 145146772Ssam break; 146146772Ssam case 64: 14775111Sfenner (*(volatile u_int64_t *)LogicalAddress) = Value; 148146772Ssam break; 149146772Ssam default: 15075111Sfenner /* debug trap goes here */ 151146772Ssam break; 152146772Ssam } 15375111Sfenner 154146772Ssam AcpiOsUnmapMemory(LogicalAddress, Width / 8); 155146772Ssam 156146772Ssam return (AE_OK); 15775111Sfenner} 15875111Sfenner