1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 2 /****************************************************************************** 3 * 4 * Name: acconfig.h - Global configuration constants 5 * 6 * Copyright (C) 2000 - 2022, Intel Corp. 7 * 8 *****************************************************************************/ 9 10 #ifndef _ACCONFIG_H 11 #define _ACCONFIG_H 12 13 /****************************************************************************** 14 * 15 * Configuration options 16 * 17 *****************************************************************************/ 18 19 /* 20 * ACPI_DEBUG_OUTPUT - This switch enables all the debug facilities of the 21 * ACPI subsystem. This includes the DEBUG_PRINT output 22 * statements. When disabled, all DEBUG_PRINT 23 * statements are compiled out. 24 * 25 * ACPI_APPLICATION - Use this switch if the subsystem is going to be run 26 * at the application level. 27 * 28 */ 29 30 /* 31 * OS name, used for the _OS object. The _OS object is essentially obsolete, 32 * but there is a large base of ASL/AML code in existing machines that check 33 * for the string below. The use of this string usually guarantees that 34 * the ASL will execute down the most tested code path. Also, there is some 35 * code that will not execute the _OSI method unless _OS matches the string 36 * below. Therefore, change this string at your own risk. 37 */ 38 #define ACPI_OS_NAME "Microsoft Windows NT" 39 40 /* Maximum objects in the various object caches */ 41 42 #define ACPI_MAX_STATE_CACHE_DEPTH 96 /* State objects */ 43 #define ACPI_MAX_PARSE_CACHE_DEPTH 96 /* Parse tree objects */ 44 #define ACPI_MAX_EXTPARSE_CACHE_DEPTH 96 /* Parse tree objects */ 45 #define ACPI_MAX_OBJECT_CACHE_DEPTH 96 /* Interpreter operand objects */ 46 #define ACPI_MAX_NAMESPACE_CACHE_DEPTH 96 /* Namespace objects */ 47 #define ACPI_MAX_COMMENT_CACHE_DEPTH 96 /* Comments for the -ca option */ 48 49 /* 50 * Should the subsystem abort the loading of an ACPI table if the 51 * table checksum is incorrect? 52 */ 53 #ifndef ACPI_CHECKSUM_ABORT 54 #define ACPI_CHECKSUM_ABORT FALSE 55 #endif 56 57 /* 58 * Generate a version of ACPICA that only supports "reduced hardware" 59 * platforms (as defined in ACPI 5.0). Set to TRUE to generate a specialized 60 * version of ACPICA that ONLY supports the ACPI 5.0 "reduced hardware" 61 * model. In other words, no ACPI hardware is supported. 62 * 63 * If TRUE, this means no support for the following: 64 * PM Event and Control registers 65 * SCI interrupt (and handler) 66 * Fixed Events 67 * General Purpose Events (GPEs) 68 * Global Lock 69 * ACPI PM timer 70 * FACS table (Waking vectors and Global Lock) 71 */ 72 #ifndef ACPI_REDUCED_HARDWARE 73 #define ACPI_REDUCED_HARDWARE FALSE 74 #endif 75 76 /****************************************************************************** 77 * 78 * Subsystem Constants 79 * 80 *****************************************************************************/ 81 82 /* Version of ACPI supported */ 83 84 #define ACPI_CA_SUPPORT_LEVEL 5 85 86 /* Maximum count for a semaphore object */ 87 88 #define ACPI_MAX_SEMAPHORE_COUNT 256 89 90 /* Maximum object reference count (detects object deletion issues) */ 91 92 #define ACPI_MAX_REFERENCE_COUNT 0x4000 93 94 /* Default page size for use in mapping memory for operation regions */ 95 96 #define ACPI_DEFAULT_PAGE_SIZE 4096 /* Must be power of 2 */ 97 98 /* owner_id tracking. 128 entries allows for 4095 owner_ids */ 99 100 #define ACPI_NUM_OWNERID_MASKS 128 101 102 /* Size of the root table array is increased by this increment */ 103 104 #define ACPI_ROOT_TABLE_SIZE_INCREMENT 4 105 106 /* Maximum sleep allowed via Sleep() operator */ 107 108 #define ACPI_MAX_SLEEP 2000 /* 2000 millisec == two seconds */ 109 110 /* Address Range lists are per-space_id (Memory and I/O only) */ 111 112 #define ACPI_ADDRESS_RANGE_MAX 2 113 114 /* Maximum time (default 30s) of While() loops before abort */ 115 116 #define ACPI_MAX_LOOP_TIMEOUT 30 117 118 /****************************************************************************** 119 * 120 * ACPI Specification constants (Do not change unless the specification changes) 121 * 122 *****************************************************************************/ 123 124 /* Method info (in WALK_STATE), containing local variables and arguments */ 125 126 #define ACPI_METHOD_NUM_LOCALS 8 127 #define ACPI_METHOD_MAX_LOCAL 7 128 129 #define ACPI_METHOD_NUM_ARGS 7 130 #define ACPI_METHOD_MAX_ARG 6 131 132 /* 133 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG 134 */ 135 #define ACPI_OBJ_NUM_OPERANDS 8 136 #define ACPI_OBJ_MAX_OPERAND 7 137 138 /* Number of elements in the Result Stack frame, can be an arbitrary value */ 139 140 #define ACPI_RESULTS_FRAME_OBJ_NUM 8 141 142 /* 143 * Maximal number of elements the Result Stack can contain, 144 * it may be an arbitrary value not exceeding the types of 145 * result_size and result_count (now u8). 146 */ 147 #define ACPI_RESULTS_OBJ_NUM_MAX 255 148 149 /* Constants used in searching for the RSDP in low memory */ 150 151 #define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */ 152 #define ACPI_EBDA_PTR_LENGTH 2 153 #define ACPI_EBDA_WINDOW_SIZE 1024 154 #define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */ 155 #define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000 156 #define ACPI_RSDP_SCAN_STEP 16 157 158 /* Operation regions */ 159 160 #define ACPI_USER_REGION_BEGIN 0x80 161 162 /* Maximum space_ids for Operation Regions */ 163 164 #define ACPI_MAX_ADDRESS_SPACE 255 165 #define ACPI_NUM_DEFAULT_SPACES 4 166 167 /* Array sizes. Used for range checking also */ 168 169 #define ACPI_MAX_MATCH_OPCODE 5 170 171 /* RSDP checksums */ 172 173 #define ACPI_RSDP_CHECKSUM_LENGTH 20 174 #define ACPI_RSDP_XCHECKSUM_LENGTH 36 175 176 /* 177 * SMBus, GSBus and IPMI buffer sizes. All have a 2-byte header, 178 * containing both Status and Length. 179 */ 180 #define ACPI_SERIAL_HEADER_SIZE 2 /* Common for below. Status and Length fields */ 181 182 #define ACPI_SMBUS_DATA_SIZE 32 183 #define ACPI_SMBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_SMBUS_DATA_SIZE 184 185 #define ACPI_IPMI_DATA_SIZE 64 186 #define ACPI_IPMI_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_IPMI_DATA_SIZE 187 188 #define ACPI_MAX_GSBUS_DATA_SIZE 255 189 #define ACPI_MAX_GSBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_MAX_GSBUS_DATA_SIZE 190 191 #define ACPI_PRM_INPUT_BUFFER_SIZE 26 192 193 /* _sx_d and _sx_w control methods */ 194 195 #define ACPI_NUM_sx_d_METHODS 4 196 #define ACPI_NUM_sx_w_METHODS 5 197 198 /****************************************************************************** 199 * 200 * Miscellaneous constants 201 * 202 *****************************************************************************/ 203 204 /* UUID constants */ 205 206 #define UUID_BUFFER_LENGTH 16 /* Length of UUID in memory */ 207 #define UUID_STRING_LENGTH 36 /* Total length of a UUID string */ 208 209 /* Positions for required hyphens (dashes) in UUID strings */ 210 211 #define UUID_HYPHEN1_OFFSET 8 212 #define UUID_HYPHEN2_OFFSET 13 213 #define UUID_HYPHEN3_OFFSET 18 214 #define UUID_HYPHEN4_OFFSET 23 215 216 /****************************************************************************** 217 * 218 * ACPI AML Debugger 219 * 220 *****************************************************************************/ 221 222 #define ACPI_DEBUGGER_MAX_ARGS ACPI_METHOD_NUM_ARGS + 4 /* Max command line arguments */ 223 #define ACPI_DB_LINE_BUFFER_SIZE 512 224 225 #define ACPI_DEBUGGER_COMMAND_PROMPT '-' 226 #define ACPI_DEBUGGER_EXECUTE_PROMPT '%' 227 228 #endif /* _ACCONFIG_H */ 229