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MdePkg/MdeModulePkg: Move AML_NAME_SEG_SIZE definition 

A NameSeg is made 4 chars.
Cf. ACPI 6.4 s20.2.2 "Name Objects Encoding":
NameSeg := <leadnamechar namechar namechar namechar>
Notice that NameSegs shorter than 4 characters are filled
with trailing underscores (‘_’s).

AML_NAME_SEG_SIZE is currently defined in:
- DynamicTablesPkg/Library/Common/AmlLib/AmlDefines.h
- MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h
Since the value can be inferred from the ACPI specification
and to avoid multiple definitions, move it to
MdePkg/Include/IndustryStandard/

Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
This commit is contained in:
Pierre Gondois 2021-06-01 23:04:49 +01:00 committed by mergify[bot]
parent b5379899b3
commit 039e07f626
2 changed files with 6 additions and 2 deletions
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1
MdeModulePkg/Universal/Acpi/AcpiTableDxe/AcpiSdt.h
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@ -56,7 +56,6 @@ typedef struct _EFI_AML_NODE_LIST EFI_AML_NODE_LIST;
// Size is the total size of this ACPI node buffer. // Size is the total size of this ACPI node buffer.
// Children is the children linked list of this node. // Children is the children linked list of this node.
// //
#define AML_NAME_SEG_SIZE 4
struct _EFI_AML_NODE_LIST { struct _EFI_AML_NODE_LIST {
UINT32 Signature; UINT32 Signature;

7
MdePkg/Include/IndustryStandard/AcpiAml.h
View File

@ -2,7 +2,7 @@
This file contains AML code definition in the latest ACPI spec. This file contains AML code definition in the latest ACPI spec.
Copyright (c) 2011, Intel Corporation. All rights reserved.<BR> Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2019, ARM Limited. All rights reserved.<BR> Copyright (c) 2019 - 2021, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent SPDX-License-Identifier: BSD-2-Clause-Patent
**/ **/
@ -176,4 +176,9 @@
#define AML_FIELD_CONNECTION_OP 0x02 #define AML_FIELD_CONNECTION_OP 0x02
#define AML_FIELD_EXT_ACCESS_OP 0x03 #define AML_FIELD_EXT_ACCESS_OP 0x03
//
// AML Name segment definitions
//
#define AML_NAME_SEG_SIZE 4
#endif #endif