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 - 2019, 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. 8 entries allows for 255 owner_ids */ 99 100#define ACPI_NUM_OWNERID_MASKS 8 101 102/* 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 argumetns */ 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/* _sx_d and _sx_w control methods */ 192 193#define ACPI_NUM_sx_d_METHODS 4 194#define ACPI_NUM_sx_w_METHODS 5 195 196/****************************************************************************** 197 * 198 * Miscellaneous constants 199 * 200 *****************************************************************************/ 201 202/* UUID constants */ 203 204#define UUID_BUFFER_LENGTH 16 /* Length of UUID in memory */ 205#define UUID_STRING_LENGTH 36 /* Total length of a UUID string */ 206 207/* Positions for required hyphens (dashes) in UUID strings */ 208 209#define UUID_HYPHEN1_OFFSET 8 210#define UUID_HYPHEN2_OFFSET 13 211#define UUID_HYPHEN3_OFFSET 18 212#define UUID_HYPHEN4_OFFSET 23 213 214/****************************************************************************** 215 * 216 * ACPI AML Debugger 217 * 218 *****************************************************************************/ 219 220#define ACPI_DEBUGGER_MAX_ARGS ACPI_METHOD_NUM_ARGS + 4 /* Max command line arguments */ 221#define ACPI_DB_LINE_BUFFER_SIZE 512 222 223#define ACPI_DEBUGGER_COMMAND_PROMPT '-' 224#define ACPI_DEBUGGER_EXECUTE_PROMPT '%' 225 226#endif /* _ACCONFIG_H */ 227