drivers/acpi/acpica/rsmemory.c

   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
  49 ACPI_MODULE_NAME("rsmemory")
  50
  51 /*******************************************************************************
  52  *
  53  * acpi_rs_convert_memory24
  54  *
  55  ******************************************************************************/
  56 struct 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
  88 struct 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
 120 struct 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
 150 struct 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
 174 struct 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
 198 struct 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 };