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0001 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ 0002 /****************************************************************************** 0003 * 0004 * Name: acconfig.h - Global configuration constants 0005 * 0006 * Copyright (C) 2000 - 2022, Intel Corp. 0007 * 0008 *****************************************************************************/ 0009 0010 #ifndef _ACCONFIG_H 0011 #define _ACCONFIG_H 0012 0013 /****************************************************************************** 0014 * 0015 * Configuration options 0016 * 0017 *****************************************************************************/ 0018 0019 /* 0020 * ACPI_DEBUG_OUTPUT - This switch enables all the debug facilities of the 0021 * ACPI subsystem. This includes the DEBUG_PRINT output 0022 * statements. When disabled, all DEBUG_PRINT 0023 * statements are compiled out. 0024 * 0025 * ACPI_APPLICATION - Use this switch if the subsystem is going to be run 0026 * at the application level. 0027 * 0028 */ 0029 0030 /* 0031 * OS name, used for the _OS object. The _OS object is essentially obsolete, 0032 * but there is a large base of ASL/AML code in existing machines that check 0033 * for the string below. The use of this string usually guarantees that 0034 * the ASL will execute down the most tested code path. Also, there is some 0035 * code that will not execute the _OSI method unless _OS matches the string 0036 * below. Therefore, change this string at your own risk. 0037 */ 0038 #define ACPI_OS_NAME "Microsoft Windows NT" 0039 0040 /* Maximum objects in the various object caches */ 0041 0042 #define ACPI_MAX_STATE_CACHE_DEPTH 96 /* State objects */ 0043 #define ACPI_MAX_PARSE_CACHE_DEPTH 96 /* Parse tree objects */ 0044 #define ACPI_MAX_EXTPARSE_CACHE_DEPTH 96 /* Parse tree objects */ 0045 #define ACPI_MAX_OBJECT_CACHE_DEPTH 96 /* Interpreter operand objects */ 0046 #define ACPI_MAX_NAMESPACE_CACHE_DEPTH 96 /* Namespace objects */ 0047 #define ACPI_MAX_COMMENT_CACHE_DEPTH 96 /* Comments for the -ca option */ 0048 0049 /* 0050 * Should the subsystem abort the loading of an ACPI table if the 0051 * table checksum is incorrect? 0052 */ 0053 #ifndef ACPI_CHECKSUM_ABORT 0054 #define ACPI_CHECKSUM_ABORT FALSE 0055 #endif 0056 0057 /* 0058 * Generate a version of ACPICA that only supports "reduced hardware" 0059 * platforms (as defined in ACPI 5.0). Set to TRUE to generate a specialized 0060 * version of ACPICA that ONLY supports the ACPI 5.0 "reduced hardware" 0061 * model. In other words, no ACPI hardware is supported. 0062 * 0063 * If TRUE, this means no support for the following: 0064 * PM Event and Control registers 0065 * SCI interrupt (and handler) 0066 * Fixed Events 0067 * General Purpose Events (GPEs) 0068 * Global Lock 0069 * ACPI PM timer 0070 * FACS table (Waking vectors and Global Lock) 0071 */ 0072 #ifndef ACPI_REDUCED_HARDWARE 0073 #define ACPI_REDUCED_HARDWARE FALSE 0074 #endif 0075 0076 /****************************************************************************** 0077 * 0078 * Subsystem Constants 0079 * 0080 *****************************************************************************/ 0081 0082 /* Version of ACPI supported */ 0083 0084 #define ACPI_CA_SUPPORT_LEVEL 5 0085 0086 /* Maximum count for a semaphore object */ 0087 0088 #define ACPI_MAX_SEMAPHORE_COUNT 256 0089 0090 /* Maximum object reference count (detects object deletion issues) */ 0091 0092 #define ACPI_MAX_REFERENCE_COUNT 0x4000 0093 0094 /* Default page size for use in mapping memory for operation regions */ 0095 0096 #define ACPI_DEFAULT_PAGE_SIZE 4096 /* Must be power of 2 */ 0097 0098 /* owner_id tracking. 128 entries allows for 4095 owner_ids */ 0099 0100 #define ACPI_NUM_OWNERID_MASKS 128 0101 0102 /* Size of the root table array is increased by this increment */ 0103 0104 #define ACPI_ROOT_TABLE_SIZE_INCREMENT 4 0105 0106 /* Maximum sleep allowed via Sleep() operator */ 0107 0108 #define ACPI_MAX_SLEEP 2000 /* 2000 millisec == two seconds */ 0109 0110 /* Address Range lists are per-space_id (Memory and I/O only) */ 0111 0112 #define ACPI_ADDRESS_RANGE_MAX 2 0113 0114 /* Maximum time (default 30s) of While() loops before abort */ 0115 0116 #define ACPI_MAX_LOOP_TIMEOUT 30 0117 0118 /****************************************************************************** 0119 * 0120 * ACPI Specification constants (Do not change unless the specification changes) 0121 * 0122 *****************************************************************************/ 0123 0124 /* Method info (in WALK_STATE), containing local variables and arguments */ 0125 0126 #define ACPI_METHOD_NUM_LOCALS 8 0127 #define ACPI_METHOD_MAX_LOCAL 7 0128 0129 #define ACPI_METHOD_NUM_ARGS 7 0130 #define ACPI_METHOD_MAX_ARG 6 0131 0132 /* 0133 * Operand Stack (in WALK_STATE), Must be large enough to contain METHOD_MAX_ARG 0134 */ 0135 #define ACPI_OBJ_NUM_OPERANDS 8 0136 #define ACPI_OBJ_MAX_OPERAND 7 0137 0138 /* Number of elements in the Result Stack frame, can be an arbitrary value */ 0139 0140 #define ACPI_RESULTS_FRAME_OBJ_NUM 8 0141 0142 /* 0143 * Maximal number of elements the Result Stack can contain, 0144 * it may be an arbitrary value not exceeding the types of 0145 * result_size and result_count (now u8). 0146 */ 0147 #define ACPI_RESULTS_OBJ_NUM_MAX 255 0148 0149 /* Constants used in searching for the RSDP in low memory */ 0150 0151 #define ACPI_EBDA_PTR_LOCATION 0x0000040E /* Physical Address */ 0152 #define ACPI_EBDA_PTR_LENGTH 2 0153 #define ACPI_EBDA_WINDOW_SIZE 1024 0154 #define ACPI_HI_RSDP_WINDOW_BASE 0x000E0000 /* Physical Address */ 0155 #define ACPI_HI_RSDP_WINDOW_SIZE 0x00020000 0156 #define ACPI_RSDP_SCAN_STEP 16 0157 0158 /* Operation regions */ 0159 0160 #define ACPI_USER_REGION_BEGIN 0x80 0161 0162 /* Maximum space_ids for Operation Regions */ 0163 0164 #define ACPI_MAX_ADDRESS_SPACE 255 0165 #define ACPI_NUM_DEFAULT_SPACES 4 0166 0167 /* Array sizes. Used for range checking also */ 0168 0169 #define ACPI_MAX_MATCH_OPCODE 5 0170 0171 /* RSDP checksums */ 0172 0173 #define ACPI_RSDP_CHECKSUM_LENGTH 20 0174 #define ACPI_RSDP_XCHECKSUM_LENGTH 36 0175 0176 /* 0177 * SMBus, GSBus and IPMI buffer sizes. All have a 2-byte header, 0178 * containing both Status and Length. 0179 */ 0180 #define ACPI_SERIAL_HEADER_SIZE 2 /* Common for below. Status and Length fields */ 0181 0182 #define ACPI_SMBUS_DATA_SIZE 32 0183 #define ACPI_SMBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_SMBUS_DATA_SIZE 0184 0185 #define ACPI_IPMI_DATA_SIZE 64 0186 #define ACPI_IPMI_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_IPMI_DATA_SIZE 0187 0188 #define ACPI_MAX_GSBUS_DATA_SIZE 255 0189 #define ACPI_MAX_GSBUS_BUFFER_SIZE ACPI_SERIAL_HEADER_SIZE + ACPI_MAX_GSBUS_DATA_SIZE 0190 0191 #define ACPI_PRM_INPUT_BUFFER_SIZE 26 0192 0193 /* _sx_d and _sx_w control methods */ 0194 0195 #define ACPI_NUM_sx_d_METHODS 4 0196 #define ACPI_NUM_sx_w_METHODS 5 0197 0198 /****************************************************************************** 0199 * 0200 * Miscellaneous constants 0201 * 0202 *****************************************************************************/ 0203 0204 /* UUID constants */ 0205 0206 #define UUID_BUFFER_LENGTH 16 /* Length of UUID in memory */ 0207 #define UUID_STRING_LENGTH 36 /* Total length of a UUID string */ 0208 0209 /* Positions for required hyphens (dashes) in UUID strings */ 0210 0211 #define UUID_HYPHEN1_OFFSET 8 0212 #define UUID_HYPHEN2_OFFSET 13 0213 #define UUID_HYPHEN3_OFFSET 18 0214 #define UUID_HYPHEN4_OFFSET 23 0215 0216 /****************************************************************************** 0217 * 0218 * ACPI AML Debugger 0219 * 0220 *****************************************************************************/ 0221 0222 #define ACPI_DEBUGGER_MAX_ARGS ACPI_METHOD_NUM_ARGS + 4 /* Max command line arguments */ 0223 #define ACPI_DB_LINE_BUFFER_SIZE 512 0224 0225 #define ACPI_DEBUGGER_COMMAND_PROMPT '-' 0226 #define ACPI_DEBUGGER_EXECUTE_PROMPT '%' 0227 0228 #endif /* _ACCONFIG_H */
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