linux/drivers/acpi/acpica/rsmemory.c
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   1/*******************************************************************************
   2 *
   3 * Module Name: rsmem24 - Memory resource descriptors
   4 *
   5 ******************************************************************************/
   6
   7/*
   8 * Copyright (C) 2000 - 2017, Intel Corp.
   9 * All rights reserved.
  10 *
  11 * Redistribution and use in source and binary forms, with or without
  12 * modification, are permitted provided that the following conditions
  13 * are met:
  14 * 1. Redistributions of source code must retain the above copyright
  15 *    notice, this list of conditions, and the following disclaimer,
  16 *    without modification.
  17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18 *    substantially similar to the "NO WARRANTY" disclaimer below
  19 *    ("Disclaimer") and any redistribution must be conditioned upon
  20 *    including a substantially similar Disclaimer requirement for further
  21 *    binary redistribution.
  22 * 3. Neither the names of the above-listed copyright holders nor the names
  23 *    of any contributors may be used to endorse or promote products derived
  24 *    from this software without specific prior written permission.
  25 *
  26 * Alternatively, this software may be distributed under the terms of the
  27 * GNU General Public License ("GPL") version 2 as published by the Free
  28 * Software Foundation.
  29 *
  30 * NO WARRANTY
  31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41 * POSSIBILITY OF SUCH DAMAGES.
  42 */
  43
  44#include <acpi/acpi.h>
  45#include "accommon.h"
  46#include "acresrc.h"
  47
  48#define _COMPONENT          ACPI_RESOURCES
  49ACPI_MODULE_NAME("rsmemory")
  50
  51/*******************************************************************************
  52 *
  53 * acpi_rs_convert_memory24
  54 *
  55 ******************************************************************************/
  56struct acpi_rsconvert_info acpi_rs_convert_memory24[4] = {
  57        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY24,
  58         ACPI_RS_SIZE(struct acpi_resource_memory24),
  59         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory24)},
  60
  61        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY24,
  62         sizeof(struct aml_resource_memory24),
  63         0},
  64
  65        /* Read/Write bit */
  66
  67        {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory24.write_protect),
  68         AML_OFFSET(memory24.flags),
  69         0},
  70        /*
  71         * These fields are contiguous in both the source and destination:
  72         * Minimum Base Address
  73         * Maximum Base Address
  74         * Address Base Alignment
  75         * Range Length
  76         */
  77        {ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.memory24.minimum),
  78         AML_OFFSET(memory24.minimum),
  79         4}
  80};
  81
  82/*******************************************************************************
  83 *
  84 * acpi_rs_convert_memory32
  85 *
  86 ******************************************************************************/
  87
  88struct acpi_rsconvert_info acpi_rs_convert_memory32[4] = {
  89        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_MEMORY32,
  90         ACPI_RS_SIZE(struct acpi_resource_memory32),
  91         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_memory32)},
  92
  93        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_MEMORY32,
  94         sizeof(struct aml_resource_memory32),
  95         0},
  96
  97        /* Read/Write bit */
  98
  99        {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.memory32.write_protect),
 100         AML_OFFSET(memory32.flags),
 101         0},
 102        /*
 103         * These fields are contiguous in both the source and destination:
 104         * Minimum Base Address
 105         * Maximum Base Address
 106         * Address Base Alignment
 107         * Range Length
 108         */
 109        {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.memory32.minimum),
 110         AML_OFFSET(memory32.minimum),
 111         4}
 112};
 113
 114/*******************************************************************************
 115 *
 116 * acpi_rs_convert_fixed_memory32
 117 *
 118 ******************************************************************************/
 119
 120struct acpi_rsconvert_info acpi_rs_convert_fixed_memory32[4] = {
 121        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_FIXED_MEMORY32,
 122         ACPI_RS_SIZE(struct acpi_resource_fixed_memory32),
 123         ACPI_RSC_TABLE_SIZE(acpi_rs_convert_fixed_memory32)},
 124
 125        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_FIXED_MEMORY32,
 126         sizeof(struct aml_resource_fixed_memory32),
 127         0},
 128
 129        /* Read/Write bit */
 130
 131        {ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.fixed_memory32.write_protect),
 132         AML_OFFSET(fixed_memory32.flags),
 133         0},
 134        /*
 135         * These fields are contiguous in both the source and destination:
 136         * Base Address
 137         * Range Length
 138         */
 139        {ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.fixed_memory32.address),
 140         AML_OFFSET(fixed_memory32.address),
 141         2}
 142};
 143
 144/*******************************************************************************
 145 *
 146 * acpi_rs_get_vendor_small
 147 *
 148 ******************************************************************************/
 149
 150struct acpi_rsconvert_info acpi_rs_get_vendor_small[3] = {
 151        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
 152         ACPI_RS_SIZE(struct acpi_resource_vendor),
 153         ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_small)},
 154
 155        /* Length of the vendor data (byte count) */
 156
 157        {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 158         0,
 159         sizeof(u8)},
 160
 161        /* Vendor data */
 162
 163        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 164         sizeof(struct aml_resource_small_header),
 165         0}
 166};
 167
 168/*******************************************************************************
 169 *
 170 * acpi_rs_get_vendor_large
 171 *
 172 ******************************************************************************/
 173
 174struct acpi_rsconvert_info acpi_rs_get_vendor_large[3] = {
 175        {ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_VENDOR,
 176         ACPI_RS_SIZE(struct acpi_resource_vendor),
 177         ACPI_RSC_TABLE_SIZE(acpi_rs_get_vendor_large)},
 178
 179        /* Length of the vendor data (byte count) */
 180
 181        {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 182         0,
 183         sizeof(u8)},
 184
 185        /* Vendor data */
 186
 187        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 188         sizeof(struct aml_resource_large_header),
 189         0}
 190};
 191
 192/*******************************************************************************
 193 *
 194 * acpi_rs_set_vendor
 195 *
 196 ******************************************************************************/
 197
 198struct acpi_rsconvert_info acpi_rs_set_vendor[7] = {
 199        /* Default is a small vendor descriptor */
 200
 201        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_SMALL,
 202         sizeof(struct aml_resource_small_header),
 203         ACPI_RSC_TABLE_SIZE(acpi_rs_set_vendor)},
 204
 205        /* Get the length and copy the data */
 206
 207        {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 208         0,
 209         0},
 210
 211        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 212         sizeof(struct aml_resource_small_header),
 213         0},
 214
 215        /*
 216         * All done if the Vendor byte length is 7 or less, meaning that it will
 217         * fit within a small descriptor
 218         */
 219        {ACPI_RSC_EXIT_LE, 0, 0, 7},
 220
 221        /* Must create a large vendor descriptor */
 222
 223        {ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_VENDOR_LARGE,
 224         sizeof(struct aml_resource_large_header),
 225         0},
 226
 227        {ACPI_RSC_COUNT16, ACPI_RS_OFFSET(data.vendor.byte_length),
 228         0,
 229         0},
 230
 231        {ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.vendor.byte_data[0]),
 232         sizeof(struct aml_resource_large_header),
 233         0}
 234};
 235