diff options
Diffstat (limited to 'usr/src/boot/sys/contrib/dev/acpica/compiler/asloffset.c')
| -rw-r--r-- | usr/src/boot/sys/contrib/dev/acpica/compiler/asloffset.c | 472 |
1 files changed, 472 insertions, 0 deletions
diff --git a/usr/src/boot/sys/contrib/dev/acpica/compiler/asloffset.c b/usr/src/boot/sys/contrib/dev/acpica/compiler/asloffset.c new file mode 100644 index 0000000000..afc62585e4 --- /dev/null +++ b/usr/src/boot/sys/contrib/dev/acpica/compiler/asloffset.c @@ -0,0 +1,472 @@ +/****************************************************************************** + * + * Module Name: asloffset - Generate a C "offset table" for BIOS use. + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2015, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <contrib/dev/acpica/compiler/aslcompiler.h> +#include "aslcompiler.y.h" +#include <contrib/dev/acpica/include/amlcode.h> +#include <contrib/dev/acpica/include/acnamesp.h> + + +#define _COMPONENT ACPI_COMPILER + ACPI_MODULE_NAME ("asloffset") + + +/* Local prototypes */ + +static void +LsEmitOffsetTableEntry ( + UINT32 FileId, + ACPI_NAMESPACE_NODE *Node, + UINT32 NamepathOffset, + UINT32 Offset, + char *OpName, + UINT64 Value, + UINT8 AmlOpcode, + UINT16 ParentOpcode); + + +/******************************************************************************* + * + * FUNCTION: LsAmlOffsetWalk + * + * PARAMETERS: ASL_WALK_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Process one node during a offset table file generation. + * + * Three types of objects are currently emitted to the offset table: + * 1) Tagged (named) resource descriptors + * 2) Named integer objects with constant integer values + * 3) Named package objects + * 4) Operation Regions that have constant Offset (address) parameters + * 5) Control methods + * + * The offset table allows the BIOS to dynamically update the values of these + * objects at boot time. + * + ******************************************************************************/ + +ACPI_STATUS +LsAmlOffsetWalk ( + ACPI_PARSE_OBJECT *Op, + UINT32 Level, + void *Context) +{ + UINT32 FileId = (UINT32) ACPI_TO_INTEGER (Context); + ACPI_NAMESPACE_NODE *Node; + UINT32 Length; + UINT32 NamepathOffset; + UINT32 DataOffset; + ACPI_PARSE_OBJECT *NextOp; + + + /* Ignore actual data blocks for resource descriptors */ + + if (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DATA) + { + return (AE_OK); /* Do NOT update the global AML offset */ + } + + /* We are only interested in named objects (have a namespace node) */ + + Node = Op->Asl.Node; + if (!Node) + { + Gbl_CurrentAmlOffset += Op->Asl.FinalAmlLength; + return (AE_OK); + } + + /* Named resource descriptor (has a descriptor tag) */ + + if ((Node->Type == ACPI_TYPE_LOCAL_RESOURCE) && + (Op->Asl.CompileFlags & NODE_IS_RESOURCE_DESC)) + { + LsEmitOffsetTableEntry (FileId, Node, 0, Gbl_CurrentAmlOffset, + Op->Asl.ParseOpName, 0, Op->Asl.Extra, AML_BUFFER_OP); + + Gbl_CurrentAmlOffset += Op->Asl.FinalAmlLength; + return (AE_OK); + } + + switch (Op->Asl.AmlOpcode) + { + case AML_NAME_OP: + + /* Named object -- Name (NameString, DataRefObject) */ + + if (!Op->Asl.Child) + { + FlPrintFile (FileId, "%s NO CHILD!\n", MsgBuffer); + return (AE_OK); + } + + Length = Op->Asl.FinalAmlLength; + NamepathOffset = Gbl_CurrentAmlOffset + Length; + + /* Get to the NameSeg/NamePath Op (and length of the name) */ + + Op = Op->Asl.Child; + + /* Get offset of last nameseg and the actual data */ + + NamepathOffset = Gbl_CurrentAmlOffset + Length + + (Op->Asl.FinalAmlLength - ACPI_NAME_SIZE); + + DataOffset = Gbl_CurrentAmlOffset + Length + + Op->Asl.FinalAmlLength; + + /* Get actual value associated with the name */ + + Op = Op->Asl.Next; + switch (Op->Asl.AmlOpcode) + { + case AML_BYTE_OP: + case AML_WORD_OP: + case AML_DWORD_OP: + case AML_QWORD_OP: + + /* The +1 is to handle the integer size prefix (opcode) */ + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, (DataOffset + 1), + Op->Asl.ParseOpName, Op->Asl.Value.Integer, + (UINT8) Op->Asl.AmlOpcode, AML_NAME_OP); + break; + + case AML_ONE_OP: + case AML_ONES_OP: + case AML_ZERO_OP: + + /* For these, offset will point to the opcode */ + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, DataOffset, + Op->Asl.ParseOpName, Op->Asl.Value.Integer, + (UINT8) Op->Asl.AmlOpcode, AML_NAME_OP); + break; + + case AML_PACKAGE_OP: + case AML_VAR_PACKAGE_OP: + + /* Get the package element count */ + + NextOp = Op->Asl.Child; + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, DataOffset, + Op->Asl.ParseOpName, NextOp->Asl.Value.Integer, + (UINT8) Op->Asl.AmlOpcode, AML_NAME_OP); + break; + + default: + break; + } + + Gbl_CurrentAmlOffset += Length; + return (AE_OK); + + case AML_REGION_OP: + + /* OperationRegion (NameString, RegionSpace, RegionOffset, RegionLength) */ + + Length = Op->Asl.FinalAmlLength; + + /* Get the name/namepath node */ + + NextOp = Op->Asl.Child; + + /* Get offset of last nameseg and the actual data */ + + NamepathOffset = Gbl_CurrentAmlOffset + Length + + (NextOp->Asl.FinalAmlLength - ACPI_NAME_SIZE); + + DataOffset = Gbl_CurrentAmlOffset + Length + + (NextOp->Asl.FinalAmlLength + 1); + + /* Get the SpaceId node, then the Offset (address) node */ + + NextOp = NextOp->Asl.Next; + NextOp = NextOp->Asl.Next; + + switch (NextOp->Asl.AmlOpcode) + { + /* + * We are only interested in integer constants that can be changed + * at boot time. Note, the One/Ones/Zero opcodes are considered + * non-changeable, so we ignore them here. + */ + case AML_BYTE_OP: + case AML_WORD_OP: + case AML_DWORD_OP: + case AML_QWORD_OP: + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, (DataOffset + 1), + Op->Asl.ParseOpName, NextOp->Asl.Value.Integer, + (UINT8) NextOp->Asl.AmlOpcode, AML_REGION_OP); + + Gbl_CurrentAmlOffset += Length; + return (AE_OK); + + default: + break; + } + break; + + case AML_METHOD_OP: + + /* Method (Namepath, ...) */ + + Length = Op->Asl.FinalAmlLength; + + /* Get the NameSeg/NamePath Op */ + + NextOp = Op->Asl.Child; + + /* Get offset of last nameseg and the actual data (flags byte) */ + + NamepathOffset = Gbl_CurrentAmlOffset + Length + + (NextOp->Asl.FinalAmlLength - ACPI_NAME_SIZE); + + DataOffset = Gbl_CurrentAmlOffset + Length + + NextOp->Asl.FinalAmlLength; + + /* Get the flags byte Op */ + + NextOp = NextOp->Asl.Next; + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, DataOffset, + Op->Asl.ParseOpName, NextOp->Asl.Value.Integer, + (UINT8) Op->Asl.AmlOpcode, AML_METHOD_OP); + break; + + case AML_PROCESSOR_OP: + + /* Processor (Namepath, ProcessorId, Address, Length) */ + + Length = Op->Asl.FinalAmlLength; + NextOp = Op->Asl.Child; /* Get Namepath */ + + /* Get offset of last nameseg and the actual data (PBlock address) */ + + NamepathOffset = Gbl_CurrentAmlOffset + Length + + (NextOp->Asl.FinalAmlLength - ACPI_NAME_SIZE); + + DataOffset = Gbl_CurrentAmlOffset + Length + + (NextOp->Asl.FinalAmlLength + 1); + + NextOp = NextOp->Asl.Next; /* Get ProcessorID (BYTE) */ + NextOp = NextOp->Asl.Next; /* Get Address (DWORD) */ + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, DataOffset, + Op->Asl.ParseOpName, NextOp->Asl.Value.Integer, + (UINT8) AML_DWORD_OP, AML_PROCESSOR_OP); + break; + + case AML_DEVICE_OP: + case AML_SCOPE_OP: + case AML_THERMAL_ZONE_OP: + + /* Device/Scope/ThermalZone (Namepath) */ + + Length = Op->Asl.FinalAmlLength; + NextOp = Op->Asl.Child; /* Get Namepath */ + + /* Get offset of last nameseg */ + + NamepathOffset = Gbl_CurrentAmlOffset + Length + + (NextOp->Asl.FinalAmlLength - ACPI_NAME_SIZE); + + LsEmitOffsetTableEntry (FileId, Node, NamepathOffset, 0, + Op->Asl.ParseOpName, 0, (UINT8) 0, Op->Asl.AmlOpcode); + break; + + default: + break; + } + + Gbl_CurrentAmlOffset += Op->Asl.FinalAmlLength; + return (AE_OK); +} + + +/******************************************************************************* + * + * FUNCTION: LsEmitOffsetTableEntry + * + * PARAMETERS: FileId - ID of current listing file + * Node - Namespace node associated with the name + * Offset - Offset of the value within the AML table + * OpName - Name of the AML opcode + * Value - Current value of the AML field + * AmlOpcode - Opcode associated with the field + * ObjectType - ACPI object type + * + * RETURN: None + * + * DESCRIPTION: Emit a line of the offset table (-so option) + * + ******************************************************************************/ + +static void +LsEmitOffsetTableEntry ( + UINT32 FileId, + ACPI_NAMESPACE_NODE *Node, + UINT32 NamepathOffset, + UINT32 Offset, + char *OpName, + UINT64 Value, + UINT8 AmlOpcode, + UINT16 ParentOpcode) +{ + ACPI_BUFFER TargetPath; + ACPI_STATUS Status; + + + /* Get the full pathname to the namespace node */ + + TargetPath.Length = ACPI_ALLOCATE_LOCAL_BUFFER; + Status = AcpiNsHandleToPathname (Node, &TargetPath, FALSE); + if (ACPI_FAILURE (Status)) + { + return; + } + + /* [1] - Skip the opening backslash for the path */ + + strcpy (MsgBuffer, "\""); + strcat (MsgBuffer, &((char *) TargetPath.Pointer)[1]); + strcat (MsgBuffer, "\","); + ACPI_FREE (TargetPath.Pointer); + + /* + * Max offset is 4G, constrained by 32-bit ACPI table length. + * Max Length for Integers is 8 bytes. + */ + FlPrintFile (FileId, + " {%-29s 0x%4.4X, 0x%8.8X, 0x%2.2X, 0x%8.8X, 0x%8.8X%8.8X}, /* %s */\n", + MsgBuffer, ParentOpcode, NamepathOffset, AmlOpcode, + Offset, ACPI_FORMAT_UINT64 (Value), OpName); +} + + +/******************************************************************************* + * + * FUNCTION: LsDoOffsetTableHeader, LsDoOffsetTableFooter + * + * PARAMETERS: FileId - ID of current listing file + * + * RETURN: None + * + * DESCRIPTION: Header and footer for the offset table file. + * + ******************************************************************************/ + +void +LsDoOffsetTableHeader ( + UINT32 FileId) +{ + + FlPrintFile (FileId, + "#ifndef __AML_OFFSET_TABLE_H\n" + "#define __AML_OFFSET_TABLE_H\n\n"); + + FlPrintFile (FileId, "typedef struct {\n" + " char *Pathname; /* Full pathname (from root) to the object */\n" + " unsigned short ParentOpcode; /* AML opcode for the parent object */\n" + " unsigned long NamesegOffset; /* Offset of last nameseg in the parent namepath */\n" + " unsigned char Opcode; /* AML opcode for the data */\n" + " unsigned long Offset; /* Offset for the data */\n" + " unsigned long long Value; /* Original value of the data (as applicable) */\n" + "} AML_OFFSET_TABLE_ENTRY;\n\n"); + + FlPrintFile (FileId, + "#endif /* __AML_OFFSET_TABLE_H */\n\n"); + + FlPrintFile (FileId, + "/*\n" + " * Information specific to the supported object types:\n" + " *\n" + " * Integers:\n" + " * Opcode is the integer prefix, indicates length of the data\n" + " * (One of: BYTE, WORD, DWORD, QWORD, ZERO, ONE, ONES)\n" + " * Offset points to the actual integer data\n" + " * Value is the existing value in the AML\n" + " *\n" + " * Packages:\n" + " * Opcode is the package or var_package opcode\n" + " * Offset points to the package opcode\n" + " * Value is the package element count\n" + " *\n" + " * Operation Regions:\n" + " * Opcode is the address integer prefix, indicates length of the data\n" + " * Offset points to the region address\n" + " * Value is the existing address value in the AML\n" + " *\n" + " * Control Methods:\n" + " * Offset points to the method flags byte\n" + " * Value is the existing flags value in the AML\n" + " *\n" + " * Processors:\n" + " * Offset points to the first byte of the PBlock Address\n" + " *\n" + " * Resource Descriptors:\n" + " * Opcode is the descriptor type\n" + " * Offset points to the start of the descriptor\n" + " *\n" + " * Scopes/Devices/ThermalZones:\n" + " * Nameseg offset only\n" + " */\n"); + + FlPrintFile (FileId, + "AML_OFFSET_TABLE_ENTRY %s_%s_OffsetTable[] =\n{\n", + Gbl_TableSignature, Gbl_TableId); +} + + +void +LsDoOffsetTableFooter ( + UINT32 FileId) +{ + + FlPrintFile (FileId, + " {NULL,0,0,0,0,0} /* Table terminator */\n};\n\n"); + Gbl_CurrentAmlOffset = 0; +} |