Make changes to ACPI 6.4 header according to the latest specification:
- ACPI 6.4 January 2021, Section 14.1.7, Section 14.4
- Mantis ID 2010 (https://mantis.uefi.org/mantis/view.php?id=2010)
Signed-off-by: Chris Jones <christopher.jo...@arm.com>
---
MdePkg/Include/IndustryStandard/Acpi64.h | 29 ++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/MdePkg/Include/IndustryStandard/Acpi64.h
b/MdePkg/Include/IndustryStandard/Acpi64.h
index
ffa819d83a95ba55784a639b309b8bac8263be6a..995426ae817561819e4de09553570c2735a5b268
100644
--- a/MdePkg/Include/IndustryStandard/Acpi64.h
+++ b/MdePkg/Include/IndustryStandard/Acpi64.h
@@ -2329,6 +2329,7 @@ typedef struct {
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_2_HW_REDUCED_COMMUNICATIONS 0x02
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_3_EXTENDED_PCC 0x03
#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_4_EXTENDED_PCC 0x04
+#define EFI_ACPI_6_4_PCCT_SUBSPACE_TYPE_5_HW_REGISTERS_COMMUNICATIONS 0x05
///
/// PCC Subspace Structure Header
@@ -2468,6 +2469,34 @@ typedef struct {
UINT32 Command;
} EFI_ACPI_6_4_PCCT_EXTENDED_PCC_SHARED_MEMORY_REGION_HEADER;
+///
+/// Type 5 HW Registers based Communications Subspace Structure
+///
+typedef struct {
+ UINT8 Type;
+ UINT8 Length;
+ UINT16 Version;
+ UINT64 BaseAddress;
+ UINT64 SharedMemoryRangeLength;
+ EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE DoorbellRegister;
+ UINT64 DoorbellPreserve;
+ UINT64 DoorbellWrite;
+ EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE CommandCompleteCheckRegister;
+ UINT64 CommandCompleteCheckMask;
+ EFI_ACPI_6_4_GENERIC_ADDRESS_STRUCTURE ErrorStatusRegister;
+ UINT64 ErrorStatusMask;
+ UINT32 NominalLatency;
+ UINT32 MinimumRequestTurnaroundTime;
+} EFI_ACPI_6_4_PCCT_SUBSPACE_5_HW_REGISTERS_COMMUNICATIONS;
+
+///
+/// Reduced PCC Subspace Shared Memory Region
+///
+typedef struct {
+ UINT32 Signature;
+//UINT8 CommunicationSubspace[];
+} EFI_6_4_PCCT_REDUCED_PCC_SUBSPACE_SHARED_MEMORY_REGION;
+
///
/// Platform Debug Trigger Table (PDTT)
///
--
Guid("CE165669-3EF3-493F-B85D-6190EE5B9759")
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