Re: [edk2-devel] [PATCH v2 10/11] DynamicTablesPkg: Add ArmScmiInfoLib

["PierreGondois" <pierre.gondois@arm.com>]

Hello Leif,

On 11/2/23 11:20, Pierre Gondois wrote:
> 
> 
> On 10/26/23 13:03, Leif Lindholm wrote:
>> On Wed, Oct 25, 2023 at 13:25:39 +0200, PierreGondois wrote:
>>> From: Pierre Gondois <pierre.gondois@arm.com>
>>>
>>> The SCP holds some power information that could be advertised
>>> through the _CPC object. The communication with the SCP is done
>>> through SCMI protocols (c.f. ArmScmiDxe).
>>>
>>> Use the SCMI protocols to query information and feed it to
>>> the DynamicTablesPkg.
>>
>> Couple of questions:
>> With a generic name like ArmScmiInfoLib, does is belong in ArmPkg or
>> MdeModulePkg?
>>
>> Or if it's more tightly integrated with DynamicTablesPkg (not
>> blatantly obvious from a quick skim below), should that be reflected
>> by the library name?
> 
> The library is tight to the DynamicTablesPkg as it produces DynamicTablesPkg
> specific objects. It uses the SCMI interface to fetch information from the SCP.
> The ScmiProtocol resides in the ArmPkg, thus the name.
> Does the name 'ScmiInfoLib' sound better ?

Should I keep ArmScmiInfoLib / ScmiInfoLib ?

Also I'm not sure if there is a change required to:
   [PATCH v2 01/11] ArmPkg/ArmScmiDxe: Rename PERFORMANCE_PROTOCOL_VERSION
regarding the spec. reference, cf. https://edk2.groups.io/g/devel/message/110515

Regards
Pierre

> 
>>
>> /
>>       Leif
>>
>>> Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
>>> ---
>>>    DynamicTablesPkg/DynamicTables.dsc.inc        |   1 +
>>>    DynamicTablesPkg/DynamicTablesPkg.dec         |   3 +
>>>    DynamicTablesPkg/DynamicTablesPkg.dsc         |   1 +
>>>    .../Include/Library/ArmScmiInfoLib.h          |  33 ++
>>>    .../Library/ArmScmiInfoLib/ArmScmiInfoLib.c   | 294 ++++++++++++++++++
>>>    .../Library/ArmScmiInfoLib/ArmScmiInfoLib.inf |  31 ++
>>>    6 files changed, 363 insertions(+)
>>>    create mode 100644 DynamicTablesPkg/Include/Library/ArmScmiInfoLib.h
>>>    create mode 100644 DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.c
>>>    create mode 100644 DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.inf
>>>
>>> diff --git a/DynamicTablesPkg/DynamicTables.dsc.inc b/DynamicTablesPkg/DynamicTables.dsc.inc
>>> index 9d4312c4e87d..be40ebc4b472 100644
>>> --- a/DynamicTablesPkg/DynamicTables.dsc.inc
>>> +++ b/DynamicTablesPkg/DynamicTables.dsc.inc
>>> @@ -15,6 +15,7 @@ [BuildOptions]
>>>    [LibraryClasses.common]
>>>      AcpiHelperLib|DynamicTablesPkg/Library/Common/AcpiHelperLib/AcpiHelperLib.inf
>>>      AmlLib|DynamicTablesPkg/Library/Common/AmlLib/AmlLib.inf
>>> +  ArmScmiInfoLib|DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.inf
>>>      SsdtPcieSupportLib|DynamicTablesPkg/Library/Common/SsdtPcieSupportLib/SsdtPcieSupportLib.inf
>>>      SsdtSerialPortFixupLib|DynamicTablesPkg/Library/Common/SsdtSerialPortFixupLib/SsdtSerialPortFixupLib.inf
>>>      TableHelperLib|DynamicTablesPkg/Library/Common/TableHelperLib/TableHelperLib.inf
>>> diff --git a/DynamicTablesPkg/DynamicTablesPkg.dec b/DynamicTablesPkg/DynamicTablesPkg.dec
>>> index cfbcbb9569f1..26498e5fec53 100644
>>> --- a/DynamicTablesPkg/DynamicTablesPkg.dec
>>> +++ b/DynamicTablesPkg/DynamicTablesPkg.dec
>>> @@ -42,6 +42,9 @@ [LibraryClasses]
>>>      ##  @libraryclass  Defines a set of SMBIOS string helper methods.
>>>      SmbiosStringTableLib|Include/Library/SmbiosStringTableLib.h
>>>    
>>> +  ##  @libraryclass  Defines a set of APIs to populate CmObj using SCMI.
>>> +  ArmScmiInfoLib|Include/Library/ArmScmiInfoLib.h
>>> +
>>>    [Protocols]
>>>      # Configuration Manager Protocol GUID
>>>      gEdkiiConfigurationManagerProtocolGuid = { 0xd85a4835, 0x5a82, 0x4894, { 0xac, 0x2, 0x70, 0x6f, 0x43, 0xd5, 0x97, 0x8e } }
>>> diff --git a/DynamicTablesPkg/DynamicTablesPkg.dsc b/DynamicTablesPkg/DynamicTablesPkg.dsc
>>> index bd5084a9008f..6ea86c9efdb0 100644
>>> --- a/DynamicTablesPkg/DynamicTablesPkg.dsc
>>> +++ b/DynamicTablesPkg/DynamicTablesPkg.dsc
>>> @@ -39,6 +39,7 @@ [LibraryClasses.ARM, LibraryClasses.AARCH64]
>>>      PL011UartLib|ArmPlatformPkg/Library/PL011UartLib/PL011UartLib.inf
>>>    
>>>    [Components.common]
>>> +  DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.inf
>>>      DynamicTablesPkg/Library/Common/AcpiHelperLib/AcpiHelperLib.inf
>>>      DynamicTablesPkg/Library/Common/AmlLib/AmlLib.inf
>>>      DynamicTablesPkg/Library/Common/SsdtPcieSupportLib/SsdtPcieSupportLib.inf
>>> diff --git a/DynamicTablesPkg/Include/Library/ArmScmiInfoLib.h b/DynamicTablesPkg/Include/Library/ArmScmiInfoLib.h
>>> new file mode 100644
>>> index 000000000000..8d3fb31df13c
>>> --- /dev/null
>>> +++ b/DynamicTablesPkg/Include/Library/ArmScmiInfoLib.h
>>> @@ -0,0 +1,33 @@
>>> +/** @file
>>> +  Arm SCMI Info Library.
>>> +
>>> +  Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.<BR>
>>> +
>>> +  SPDX-License-Identifier: BSD-2-Clause-Patent
>>> +**/
>>> +
>>> +#ifndef ARM_SCMI_INFO_LIB_H_
>>> +#define ARM_SCMI_INFO_LIB_H_
>>> +
>>> +#include <ConfigurationManagerObject.h>
>>> +
>>> +/** Populate a AML_CPC_INFO object based on SCMI information.
>>> +
>>> +  @param[in]  DomainId    Identifier for the performance domain.
>>> +  @param[out] CpcInfo     If success, this structure was populated from
>>> +                          information queried to the SCP.
>>> +
>>> +  @retval EFI_SUCCESS             Success.
>>> +  @retval EFI_DEVICE_ERROR        Device error.
>>> +  @retval EFI_INVALID_PARAMETER   Invalid parameter.
>>> +  @retval EFI_TIMEOUT             Time out.
>>> +  @retval EFI_UNSUPPORTED         Unsupported.
>>> +**/
>>> +EFI_STATUS
>>> +EFIAPI
>>> +ArmScmiInfoGetFastChannel (
>>> +  IN  UINT32        DomainId,
>>> +  OUT AML_CPC_INFO  *CpcInfo
>>> +  );
>>> +
>>> +#endif // ARM_SCMI_INFO_LIB_H_
>>> diff --git a/DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.c b/DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.c
>>> new file mode 100644
>>> index 000000000000..c23bff63bb6f
>>> --- /dev/null
>>> +++ b/DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.c
>>> @@ -0,0 +1,294 @@
>>> +/** @file
>>> +  Arm SCMI Info Library.
>>> +
>>> +  Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.<BR>
>>> +
>>> +  Arm Functional Fixed Hardware Specification:
>>> +  - https://developer.arm.com/documentation/den0048/latest/
>>> +
>>> +  SPDX-License-Identifier: BSD-2-Clause-Patent
>>> +**/
>>> +
>>> +#include <Library/AcpiLib.h>
>>> +#include <Library/ArmScmiInfoLib.h>
>>> +#include <Library/DebugLib.h>
>>> +#include <Library/MemoryAllocationLib.h>
>>> +#include <Library/UefiBootServicesTableLib.h>
>>> +#include <Protocol/ArmScmi.h>
>>> +#include <Protocol/ArmScmiPerformanceProtocol.h>
>>> +
>>> +/** Arm FFH registers
>>> +
>>> +  Cf. Arm Functional Fixed Hardware Specification
>>> +  s3.2 Performance management and Collaborative Processor Performance Control
>>> +*/
>>> +#define ARM_FFH_DELIVERED_PERF_COUNTER_REGISTER  0x0
>>> +#define ARM_FFH_REFERENCE_PERF_COUNTER_REGISTER  0x1
>>> +
>>> +/// Arm SCMI performance protocol.
>>> +STATIC SCMI_PERFORMANCE_PROTOCOL  *ScmiPerfProtocol;
>>> +
>>> +/** Arm SCMI Info Library constructor.
>>> +
>>> +  @param  ImageHandle   Image of the loaded driver.
>>> +  @param  SystemTable   Pointer to the System Table.
>>> +
>>> +  @retval EFI_SUCCESS             Success.
>>> +  @retval EFI_DEVICE_ERROR        Device error.
>>> +  @retval EFI_INVALID_PARAMETER   Invalid parameter.
>>> +  @retval EFI_NOT_FOUND           Not Found
>>> +  @retval EFI_TIMEOUT             Timeout.
>>> +  @retval EFI_UNSUPPORTED         Unsupported.
>>> +**/
>>> +EFI_STATUS
>>> +EFIAPI
>>> +ArmScmiInfoLibConstructor (
>>> +  IN  EFI_HANDLE        ImageHandle,
>>> +  IN  EFI_SYSTEM_TABLE  *SystemTable
>>> +  )
>>> +{
>>> +  EFI_STATUS  Status;
>>> +  UINT32      Version;
>>> +
>>> +  Status = gBS->LocateProtocol (
>>> +                  &gArmScmiPerformanceProtocolGuid,
>>> +                  NULL,
>>> +                  (VOID **)&ScmiPerfProtocol
>>> +                  );
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  Status = ScmiPerfProtocol->GetVersion (ScmiPerfProtocol, &Version);
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  // FastChannels were added in SCMI v2.0 spec.
>>> +  if (Version < PERFORMANCE_PROTOCOL_VERSION_V2) {
>>> +    DEBUG ((DEBUG_ERROR, "ArmScmiInfoLib requires SCMI version > 2.0\n"));
>>> +    return EFI_UNSUPPORTED;
>>> +  }
>>> +
>>> +  return Status;
>>> +}
>>> +
>>> +/** Get the OPPs/performance states of a power domain.
>>> +
>>> +  This function is a wrapper around the SCMI PERFORMANCE_DESCRIBE_LEVELS
>>> +  command. The list of discrete performance states is returned in a buffer
>>> +  that must be freed by the caller.
>>> +
>>> +  @param[in]  DomainId        Identifier for the performance domain.
>>> +  @param[out] LevelArray      If success, pointer to the list of list of
>>> +                              performance state. This memory must be freed by
>>> +                              the caller.
>>> +  @param[out] LevelArrayCount If success, contains the number of states in
>>> +                              LevelArray.
>>> +
>>> +  @retval EFI_SUCCESS             Success.
>>> +  @retval EFI_DEVICE_ERROR        Device error.
>>> +  @retval EFI_INVALID_PARAMETER   Invalid parameter.
>>> +  @retval EFI_TIMEOUT             Time out.
>>> +  @retval EFI_UNSUPPORTED         Unsupported.
>>> +**/
>>> +STATIC
>>> +EFI_STATUS
>>> +EFIAPI
>>> +ArmScmiInfoDescribeLevels (
>>> +  IN  UINT32                  DomainId,
>>> +  OUT SCMI_PERFORMANCE_LEVEL  **LevelArray,
>>> +  OUT UINT32                  *LevelArrayCount
>>> +  )
>>> +{
>>> +  EFI_STATUS              Status;
>>> +  SCMI_PERFORMANCE_LEVEL  *Array;
>>> +  UINT32                  Count;
>>> +  UINT32                  Size;
>>> +
>>> +  if ((ScmiPerfProtocol == NULL)  ||
>>> +      (LevelArray == NULL)  ||
>>> +      (LevelArrayCount == NULL))
>>> +  {
>>> +    return EFI_INVALID_PARAMETER;
>>> +  }
>>> +
>>> +  // First call to get the number of levels.
>>> +  Size   = 0;
>>> +  Status = ScmiPerfProtocol->DescribeLevels (
>>> +                               ScmiPerfProtocol,
>>> +                               DomainId,
>>> +                               &Count,
>>> +                               &Size,
>>> +                               NULL
>>> +                               );
>>> +  if (Status != EFI_BUFFER_TOO_SMALL) {
>>> +    // EFI_SUCCESS is not a valid option.
>>> +    if (Status == EFI_SUCCESS) {
>>> +      return EFI_INVALID_PARAMETER;
>>> +    } else {
>>> +      return Status;
>>> +    }
>>> +  }
>>> +
>>> +  Array = AllocateZeroPool (Size);
>>> +  if (Array == NULL) {
>>> +    return EFI_OUT_OF_RESOURCES;
>>> +  }
>>> +
>>> +  // Second call to get the descriptions of the levels.
>>> +  Status = ScmiPerfProtocol->DescribeLevels (
>>> +                               ScmiPerfProtocol,
>>> +                               DomainId,
>>> +                               &Count,
>>> +                               &Size,
>>> +                               Array
>>> +                               );
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  *LevelArray      = Array;
>>> +  *LevelArrayCount = Count;
>>> +
>>> +  return Status;
>>> +}
>>> +
>>> +/** Populate a AML_CPC_INFO object based on SCMI information.
>>> +
>>> +  @param[in]  DomainId    Identifier for the performance domain.
>>> +  @param[out] CpcInfo     If success, this structure was populated from
>>> +                          information queried to the SCP.
>>> +
>>> +  @retval EFI_SUCCESS             Success.
>>> +  @retval EFI_DEVICE_ERROR        Device error.
>>> +  @retval EFI_INVALID_PARAMETER   Invalid parameter.
>>> +  @retval EFI_TIMEOUT             Time out.
>>> +  @retval EFI_UNSUPPORTED         Unsupported.
>>> +**/
>>> +EFI_STATUS
>>> +EFIAPI
>>> +ArmScmiInfoGetFastChannel (
>>> +  IN  UINT32        DomainId,
>>> +  OUT AML_CPC_INFO  *CpcInfo
>>> +  )
>>> +{
>>> +  EFI_STATUS                          Status;
>>> +  SCMI_PERFORMANCE_FASTCHANNEL        FcLevelGet;
>>> +  SCMI_PERFORMANCE_FASTCHANNEL        FcLimitsSet;
>>> +  SCMI_PERFORMANCE_DOMAIN_ATTRIBUTES  DomainAttributes;
>>> +
>>> +  SCMI_PERFORMANCE_LEVEL  *LevelArray;
>>> +  UINT32                  LevelCount;
>>> +
>>> +  UINT64  FcLevelGetAddr;
>>> +  UINT64  FcLimitsMaxSetAddr;
>>> +  UINT64  FcLimitsMinSetAddr;
>>> +
>>> +  if ((ScmiPerfProtocol == NULL)  ||
>>> +      (CpcInfo == NULL))
>>> +  {
>>> +    return EFI_INVALID_PARAMETER;
>>> +  }
>>> +
>>> +  Status = ScmiPerfProtocol->DescribeFastchannel (
>>> +                               ScmiPerfProtocol,
>>> +                               DomainId,
>>> +                               ScmiMessageIdPerformanceLevelSet,
>>> +                               &FcLevelGet
>>> +                               );
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  Status = ScmiPerfProtocol->DescribeFastchannel (
>>> +                               ScmiPerfProtocol,
>>> +                               DomainId,
>>> +                               ScmiMessageIdPerformanceLimitsSet,
>>> +                               &FcLimitsSet
>>> +                               );
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  Status = ScmiPerfProtocol->GetDomainAttributes (
>>> +                               ScmiPerfProtocol,
>>> +                               DomainId,
>>> +                               &DomainAttributes
>>> +                               );
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  Status = ArmScmiInfoDescribeLevels (DomainId, &LevelArray, &LevelCount);
>>> +  if (EFI_ERROR (Status)) {
>>> +    return Status;
>>> +  }
>>> +
>>> +  /* Do some safety checks.
>>> +     Only support FastChannels (and not doorbells) as this is
>>> +     the only mechanism supported by SCP.
>>> +     FcLimits[Get|Set] require 2 UINT32 values (max, then min) and
>>> +     FcLimits[Get|Set] require 1 UINT32 value (level).
>>> +  */
>>> +  if ((FcLevelGet.ChanSize != sizeof (UINT32))  ||
>>> +      ((FcLevelGet.Attributes & SCMI_PERF_FC_ATTRIB_HAS_DOORBELL) ==
>>> +       SCMI_PERF_FC_ATTRIB_HAS_DOORBELL) ||
>>> +      (FcLimitsSet.ChanSize != 2 * sizeof (UINT32)) ||
>>> +      ((FcLimitsSet.Attributes & SCMI_PERF_FC_ATTRIB_HAS_DOORBELL) ==
>>> +       SCMI_PERF_FC_ATTRIB_HAS_DOORBELL))
>>> +  {
>>> +    Status = EFI_INVALID_PARAMETER;
>>> +    goto exit_handler;
>>> +  }
>>> +
>>> +  FcLevelGetAddr = ((UINT64)FcLevelGet.ChanAddrHigh << 32) |
>>> +                   FcLevelGet.ChanAddrLow;
>>> +  FcLimitsMaxSetAddr = ((UINT64)FcLimitsSet.ChanAddrHigh << 32) |
>>> +                       FcLimitsSet.ChanAddrLow;
>>> +  FcLimitsMinSetAddr = FcLimitsMaxSetAddr + 0x4;
>>> +
>>> +  CpcInfo->Revision                          = EFI_ACPI_6_4_AML_CPC_REVISION_V3;
>>> +  CpcInfo->HighestPerformanceInteger         = LevelArray[LevelCount - 1].Level;
>>> +  CpcInfo->NominalPerformanceInteger         = DomainAttributes.SustainedPerfLevel;
>>> +  CpcInfo->LowestNonlinearPerformanceInteger = LevelArray[0].Level;
>>> +  CpcInfo->LowestPerformanceInteger          = LevelArray[0].Level;
>>> +
>>> +  CpcInfo->DesiredPerformanceRegister.AddressSpaceId    = EFI_ACPI_6_4_SYSTEM_MEMORY;
>>> +  CpcInfo->DesiredPerformanceRegister.RegisterBitWidth  = 32;
>>> +  CpcInfo->DesiredPerformanceRegister.RegisterBitOffset = 0;
>>> +  CpcInfo->DesiredPerformanceRegister.AccessSize        = EFI_ACPI_6_4_DWORD;
>>> +  CpcInfo->DesiredPerformanceRegister.Address           = FcLevelGetAddr;
>>> +
>>> +  CpcInfo->MinimumPerformanceRegister.AddressSpaceId    = EFI_ACPI_6_4_SYSTEM_MEMORY;
>>> +  CpcInfo->MinimumPerformanceRegister.RegisterBitWidth  = 32;
>>> +  CpcInfo->MinimumPerformanceRegister.RegisterBitOffset = 0;
>>> +  CpcInfo->MinimumPerformanceRegister.AccessSize        = EFI_ACPI_6_4_DWORD;
>>> +  CpcInfo->MinimumPerformanceRegister.Address           = FcLimitsMinSetAddr;
>>> +
>>> +  CpcInfo->MaximumPerformanceRegister.AddressSpaceId    = EFI_ACPI_6_4_SYSTEM_MEMORY;
>>> +  CpcInfo->MaximumPerformanceRegister.RegisterBitWidth  = 32;
>>> +  CpcInfo->MaximumPerformanceRegister.RegisterBitOffset = 0;
>>> +  CpcInfo->MaximumPerformanceRegister.AccessSize        = EFI_ACPI_6_4_DWORD;
>>> +  CpcInfo->MaximumPerformanceRegister.Address           = FcLimitsMaxSetAddr;
>>> +
>>> +  CpcInfo->ReferencePerformanceCounterRegister.AddressSpaceId    = EFI_ACPI_6_4_FUNCTIONAL_FIXED_HARDWARE;
>>> +  CpcInfo->ReferencePerformanceCounterRegister.RegisterBitWidth  = 0x40;
>>> +  CpcInfo->ReferencePerformanceCounterRegister.RegisterBitOffset = 0;
>>> +  CpcInfo->ReferencePerformanceCounterRegister.AccessSize        = ARM_FFH_REFERENCE_PERF_COUNTER_REGISTER;
>>> +  CpcInfo->ReferencePerformanceCounterRegister.Address           = 0x4;
>>> +
>>> +  CpcInfo->DeliveredPerformanceCounterRegister.AddressSpaceId    = EFI_ACPI_6_4_FUNCTIONAL_FIXED_HARDWARE;
>>> +  CpcInfo->DeliveredPerformanceCounterRegister.RegisterBitWidth  = 0x40;
>>> +  CpcInfo->DeliveredPerformanceCounterRegister.RegisterBitOffset = 0;
>>> +  CpcInfo->DeliveredPerformanceCounterRegister.AccessSize        = ARM_FFH_DELIVERED_PERF_COUNTER_REGISTER;
>>> +  CpcInfo->DeliveredPerformanceCounterRegister.Address           = 0x4;
>>> +
>>> +  // SCMI should advertise performance values on a unified scale. So frequency
>>> +  // values are not available. LowestFrequencyInteger and
>>> +  // NominalFrequencyInteger are populated in the ConfigurationManager.
>>> +
>>> +exit_handler:
>>> +  FreePool (LevelArray);
>>> +  return Status;
>>> +}
>>> diff --git a/DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.inf b/DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.inf
>>> new file mode 100644
>>> index 000000000000..aad3f0fa7b83
>>> --- /dev/null
>>> +++ b/DynamicTablesPkg/Library/ArmScmiInfoLib/ArmScmiInfoLib.inf
>>> @@ -0,0 +1,31 @@
>>> +## @file
>>> +#  Arm SCMI Info Library.
>>> +#
>>> +#  Copyright (c) 2022 - 2023, Arm Limited. All rights reserved.
>>> +#
>>> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
>>> +##
>>> +
>>> +[Defines]
>>> +  INF_VERSION    = 0x0001001B
>>> +  BASE_NAME      = ArmScmiInfoLib
>>> +  FILE_GUID      = 1A7CDB04-9FFC-40DA-A87C-A5ACADAF8136
>>> +  VERSION_STRING = 1.0
>>> +  MODULE_TYPE    = DXE_DRIVER
>>> +  LIBRARY_CLASS  = ArmScmiInfoLib
>>> +  CONSTRUCTOR    = ArmScmiInfoLibConstructor
>>> +
>>> +[Sources]
>>> +  ArmScmiInfoLib.c
>>> +
>>> +[Packages]
>>> +  ArmPkg/ArmPkg.dec
>>> +  DynamicTablesPkg/DynamicTablesPkg.dec
>>> +  EmbeddedPkg/EmbeddedPkg.dec
>>> +  MdePkg/MdePkg.dec
>>> +
>>> +[Protocols]
>>> +  gArmScmiPerformanceProtocolGuid   ## CONSUMES
>>> +
>>> +[Depex]
>>> +  gArmScmiPerformanceProtocolGuid
>>> -- 
>>> 2.25.1
>>>
>>>
>>>
>>> 
>>>
>>>


-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#110962): https://edk2.groups.io/g/devel/message/110962
Mute This Topic: https://groups.io/mt/102175821/7686176
Group Owner: devel+owner@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io]
-=-=-=-=-=-=-=-=-=-=-=-