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From: "chandni cherukuri" <chandni.cherukuri@arm.com>
To: devel@edk2.groups.io, sahil@arm.com
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>,
	quic_llindhol@quicinc.com,  Sami Mujawar <Sami.Mujawar@arm.com>
Subject: Re: [edk2-devel] [edk2-platforms][PATCH V3 1/1] Platform/ARM/N1sdp: Add support to parse NT_FW_CONFIG
Date: Wed, 11 Oct 2023 10:55:34 +0530	[thread overview]
Message-ID: <CABG6B_6yFzhrceEiSORJtrPe6NBM6tC+8JzJCN4YnSks4ABN=Q@mail.gmail.com> (raw)
In-Reply-To: <20230823110318.826467-1-sahil@arm.com>

Hi Sahil,

These changes look good to me.

Reviewed-by: Chandni Cherukuri <chandni.cherukuri@arm.com>

Regards,
Chandni Cherukuri

On Wed, Aug 23, 2023 at 4:33 PM sahil <sahil@arm.com> wrote:
>
> NT_FW_CONFIG DTB contains platform information passed by
> Tf-A boot stage.
> This information is used for Virtual memory map generation
> during PEI phase and passed on to DXE phase as a HOB, where
> it is used in ConfigurationManagerDxe.
>
> This patch adds a PEI to parse NT_FW_CONFIG and pass it to
> other PEI modules(as PPI) and DXE modules(as HOB).
>
> Signed-off-by: sahil <sahil@arm.com>
> ---
>
> Notes:
>     v3:
>      - Fixed code review comments
>      - Added a PEI to parse nt_fw_config
>
>  Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec                                                 |   8 +-
>  Platform/ARM/N1Sdp/N1SdpPlatform.dsc                                                        |   5 +-
>  Platform/ARM/N1Sdp/N1SdpPlatform.fdf                                                        |   3 +-
>  Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf |   6 +-
>  Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.inf                             |  41 ++++++
>  Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf                               |   8 +-
>  Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h                                           |  14 +--
>  Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c      |  24 ++--
>  Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.c                               | 133 ++++++++++++++++++++
>  Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c                                 |  12 +-
>  Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c                              |  33 +++--
>  Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S                              |   4 +-
>  12 files changed, 255 insertions(+), 36 deletions(-)
>
> diff --git a/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec b/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
> index d59f25a5b915..7118da25dce0 100644
> --- a/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
> +++ b/Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
> @@ -1,7 +1,7 @@
>  ## @file
>  #  Describes the entire platform configuration.
>  #
> -#  Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.<BR>
> +#  Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.<BR>
>  #
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
>  #
> @@ -22,6 +22,8 @@
>    Include                        # Root include for the package
>
>  [Guids.common]
> +  # ARM NeoverseN1Soc Platform Info descriptor
> +  gArmNeoverseN1SocPlatformInfoDescriptorGuid = { 0x9fa16eb5, 0xce13, 0x4d37, { 0x96, 0xf0, 0x0a, 0xb5, 0xf1, 0xab, 0xff, 0x01 } }
>    gArmNeoverseN1SocTokenSpaceGuid = { 0xab93eb78, 0x60d7, 0x4099, { 0xac, 0xeb, 0x6d, 0xb5, 0x02, 0x58, 0x7c, 0x24 } }
>
>  [PcdsFixedAtBuild]
> @@ -83,3 +85,7 @@
>    gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieMmio32Translation|0x40000000000|UINT64|0x0000004F
>    gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieMmio64Translation|0x40000000000|UINT64|0x00000050
>    gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieSegmentNumber|2|UINT32|0x00000051
> +
> +[Ppis]
> +  gArmNeoverseN1SocPlatformInfoDescriptorPpiGuid = { 0x21D04AD4, 0x4D23, 0x426D, { 0x8D, 0x3E, 0x92, 0x23, 0x3E, 0xF4, 0xB9, 0x5E } }
> +  gArmNeoverseN1SocParameterPpiGuid = { 0x4DDD5A72, 0x31AD, 0x4B20, { 0x8F, 0x5F, 0xB3, 0xE8, 0x24, 0x6F, 0x80, 0x2B } }
> diff --git a/Platform/ARM/N1Sdp/N1SdpPlatform.dsc b/Platform/ARM/N1Sdp/N1SdpPlatform.dsc
> index d04b22d3ef51..691d1af3c25c 100644
> --- a/Platform/ARM/N1Sdp/N1SdpPlatform.dsc
> +++ b/Platform/ARM/N1Sdp/N1SdpPlatform.dsc
> @@ -4,7 +4,7 @@
>  # This provides platform specific component descriptions and libraries that
>  # conform to EFI/Framework standards.
>  #
> -# Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.<BR>
> +# Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.<BR>
>  #
>  # SPDX-License-Identifier: BSD-2-Clause-Patent
>  #
> @@ -228,6 +228,9 @@
>    # Platform driver
>    Platform/ARM/N1Sdp/Drivers/PlatformDxe/PlatformDxe.inf
>
> +  # PEI Phase modules
> +  Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.inf
> +
>    # Human Interface Support
>    MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf
>
> diff --git a/Platform/ARM/N1Sdp/N1SdpPlatform.fdf b/Platform/ARM/N1Sdp/N1SdpPlatform.fdf
> index e5e24ea50294..baac8a3ef727 100644
> --- a/Platform/ARM/N1Sdp/N1SdpPlatform.fdf
> +++ b/Platform/ARM/N1Sdp/N1SdpPlatform.fdf
> @@ -1,7 +1,7 @@
>  ## @file
>  #  FDF file of N1Sdp
>  #
> -#  Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.<BR>
> +#  Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.<BR>
>  #
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
>  ##
> @@ -195,6 +195,7 @@ READ_LOCK_STATUS   = TRUE
>    INF MdeModulePkg/Core/Pei/PeiMain.inf
>    INF MdeModulePkg/Universal/PCD/Pei/Pcd.inf
>    INF MdeModulePkg/Universal/Variable/Pei/VariablePei.inf
> +  INF Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.inf
>
>    FILE FV_IMAGE = 9E21FD93-9C72-4c15-8C4B-E77F1DB2D792 {
>      SECTION GUIDED EE4E5898-3914-4259-9D6E-DC7BD79403CF PROCESSING_REQUIRED = TRUE {
> diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
> index 4f8e7f13021a..242490caf860 100644
> --- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
> +++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
> @@ -1,7 +1,7 @@
>  ## @file
>  #  Configuration Manager Dxe
>  #
> -#  Copyright (c) 2021, ARM Limited. All rights reserved.<BR>
> +#  Copyright (c) 2021 - 2023, ARM Limited. All rights reserved.<BR>
>  #
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
>  #
> @@ -42,6 +42,7 @@
>
>  [LibraryClasses]
>    ArmPlatformLib
> +  HobLib
>    PrintLib
>    UefiBootServicesTableLib
>    UefiDriverEntryPoint
> @@ -170,5 +171,8 @@
>    gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieMmio64Translation
>    gArmNeoverseN1SocTokenSpaceGuid.PcdRemotePcieSegmentNumber
>
> +[Guids]
> +  gArmNeoverseN1SocPlatformInfoDescriptorGuid
> +
>  [Depex]
>    TRUE
> diff --git a/Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.inf b/Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.inf
> new file mode 100644
> index 000000000000..2eec8c327205
> --- /dev/null
> +++ b/Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.inf
> @@ -0,0 +1,41 @@
> +## @file
> +#  This PEI module parse the NtFwConfig for N1Sdp platform and produce
> +#  the PPI and HOB.
> +#
> +#  Copyright (c) 2023, ARM Limited. All rights reserved.<BR>
> +#
> +#  SPDX-License-Identifier: BSD-2-Clause-Patent
> +#
> +##
> +
> +[Defines]
> +  INF_VERSION                    = 0x0001001B
> +  BASE_NAME                      = N1SdpNtFwConfigPei
> +  FILE_GUID                      = CE76D56C-D3A5-4763-9138-DF09E1D1B614
> +  MODULE_TYPE                    = PEIM
> +  VERSION_STRING                 = 1.0
> +  ENTRY_POINT                    = Load
> +
> +[Sources]
> +  NtFwConfigPei.c
> +
> +[Packages]
> +  EmbeddedPkg/EmbeddedPkg.dec
> +  MdePkg/MdePkg.dec
> +  Silicon/ARM/NeoverseN1Soc/NeoverseN1Soc.dec
> +
> +[LibraryClasses]
> +  DebugLib
> +  FdtLib
> +  HobLib
> +  PeimEntryPoint
> +
> +[Ppis]
> +  gArmNeoverseN1SocPlatformInfoDescriptorPpiGuid
> +  gArmNeoverseN1SocParameterPpiGuid
> +
> +[Guids]
> +  gArmNeoverseN1SocPlatformInfoDescriptorGuid
> +
> +[Depex]
> +  gArmNeoverseN1SocParameterPpiGuid
> diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
> index 96e590cdd810..6e7e16b86838 100644
> --- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
> +++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
> @@ -1,7 +1,7 @@
>  ## @file
>  #  Platform Library for N1Sdp.
>  #
> -#  Copyright (c) 2018-2021, ARM Limited. All rights reserved.<BR>
> +#  Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.<BR>
>  #
>  #  SPDX-License-Identifier: BSD-2-Clause-Patent
>  #
> @@ -58,8 +58,8 @@
>
>    gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
>
> -[Guids]
> -  gEfiHobListGuid          ## CONSUMES  ## SystemTable
> -
>  [Ppis]
>    gArmMpCoreInfoPpiGuid
> +  gArmNeoverseN1SocParameterPpiGuid
> +  gArmNeoverseN1SocPlatformInfoDescriptorPpiGuid
> +
> diff --git a/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h b/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h
> index 097160c7e2d1..2f83d582ccf3 100644
> --- a/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h
> +++ b/Silicon/ARM/NeoverseN1Soc/Include/NeoverseN1Soc.h
> @@ -1,6 +1,6 @@
>  /** @file
>  *
> -* Copyright (c) 2018 - 2020, ARM Limited. All rights reserved.
> +* Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.
>  *
>  * SPDX-License-Identifier: BSD-2-Clause-Patent
>  *
> @@ -41,11 +41,6 @@
>  #define NEOVERSEN1SOC_EXP_PERIPH_BASE0               0x1C000000
>  #define NEOVERSEN1SOC_EXP_PERIPH_BASE0_SZ            0x1300000
>
> -// Base address to a structure of type NEOVERSEN1SOC_PLAT_INFO which is
> -// pre-populated by a earlier boot stage
> -#define NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE          (NEOVERSEN1SOC_NON_SECURE_SRAM_BASE + \
> -                                                      0x00008000)
> -
>  /*
>   * Platform information structure stored in Non-secure SRAM. Platform
>   * information are passed from the trusted firmware with the below structure
> @@ -55,12 +50,15 @@
>  typedef struct {
>    /*! 0 - Single Chip, 1 - Chip to Chip (C2C) */
>    UINT8   MultichipMode;
> -  /*! Slave count in C2C mode */
> -  UINT8   SlaveCount;
> +  /*! Secondary chip count in C2C mode */
> +  UINT8   SecondaryChipCount;
>    /*! Local DDR memory size in GigaBytes */
>    UINT8   LocalDdrSize;
>    /*! Remote DDR memory size in GigaBytes */
>    UINT8   RemoteDdrSize;
>  } NEOVERSEN1SOC_PLAT_INFO;
>
> +typedef struct {
> +  CONST VOID    *NtFwConfig;
> +} NEOVERSEN1SOC_EL3_FW_HANDOFF_PARAM_PPI;
>  #endif
> diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> index fa6408a7dd1e..e248826ec925 100644
> --- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> +++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
> @@ -1,7 +1,7 @@
>  /** @file
>    Configuration Manager Dxe
>
> -  Copyright (c) 2021, ARM Limited. All rights reserved.<BR>
> +  Copyright (c) 2021 - 2023, ARM Limited. All rights reserved.<BR>
>
>    SPDX-License-Identifier: BSD-2-Clause-Patent
>
> @@ -16,6 +16,7 @@
>  #include <IndustryStandard/SerialPortConsoleRedirectionTable.h>
>  #include <Library/ArmLib.h>
>  #include <Library/DebugLib.h>
> +#include <Library/HobLib.h>
>  #include <Library/IoLib.h>
>  #include <Library/PcdLib.h>
>  #include <Library/UefiBootServicesTableLib.h>
> @@ -28,6 +29,7 @@
>  #include "Platform.h"
>
>  extern struct EFI_ACPI_HETEROGENEOUS_MEMORY_ATTRIBUTE_TABLE Hmat;
> +static NEOVERSEN1SOC_PLAT_INFO *PlatInfo;
>
>  /** The platform configuration repository information.
>  */
> @@ -1242,13 +1244,21 @@ InitializePlatformRepository (
>    IN  EDKII_PLATFORM_REPOSITORY_INFO  * CONST PlatRepoInfo
>    )
>  {
> -  NEOVERSEN1SOC_PLAT_INFO       *PlatInfo;
>    UINT64                        Dram2Size;
>    UINT64                        RemoteDdrSize;
> +  VOID                          *PlatInfoHob;
> +
> +  PlatInfoHob = GetFirstGuidHob (&gArmNeoverseN1SocPlatformInfoDescriptorGuid);
> +
> +  if (PlatInfoHob == NULL) {
> +    DEBUG ((DEBUG_ERROR, "Platform HOB is NULL\n"));
> +    return EFI_NOT_FOUND;
> +  }
> +
> +  PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)GET_GUID_HOB_DATA (PlatInfoHob);
>
>    RemoteDdrSize = 0;
>
> -  PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
>    Dram2Size = ((PlatInfo->LocalDdrSize - 2) * SIZE_1GB);
>
>    PlatRepoInfo->MemAffInfo[LOCAL_DDR_REGION2].Length = Dram2Size;
> @@ -1512,7 +1522,6 @@ GetGicCInfo (
>    )
>  {
>    EDKII_PLATFORM_REPOSITORY_INFO  * PlatformRepo;
> -  NEOVERSEN1SOC_PLAT_INFO           *PlatInfo;
>    UINT32                            TotalObjCount;
>    UINT32                            ObjIndex;
>
> @@ -1523,7 +1532,6 @@ GetGicCInfo (
>    }
>
>    PlatformRepo = This->PlatRepoInfo;
> -  PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
>
>    if (PlatInfo->MultichipMode == 1) {
>      TotalObjCount = PLAT_CPU_COUNT * 2;
> @@ -1623,7 +1631,6 @@ GetStandardNameSpaceObject (
>  {
>    EFI_STATUS                        Status;
>    EDKII_PLATFORM_REPOSITORY_INFO  * PlatformRepo;
> -  NEOVERSEN1SOC_PLAT_INFO           *PlatInfo;
>    UINT32                            AcpiTableCount;
>
>    if ((This == NULL) || (CmObject == NULL)) {
> @@ -1634,7 +1641,7 @@ GetStandardNameSpaceObject (
>
>    Status = EFI_NOT_FOUND;
>    PlatformRepo = This->PlatRepoInfo;
> -  PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
> +
>    AcpiTableCount = ARRAY_SIZE (PlatformRepo->CmAcpiTableList);
>    if (PlatInfo->MultichipMode == 0)
>          AcpiTableCount -= 1;
> @@ -1697,7 +1704,6 @@ GetArmNameSpaceObject (
>  {
>    EFI_STATUS                        Status;
>    EDKII_PLATFORM_REPOSITORY_INFO  * PlatformRepo;
> -  NEOVERSEN1SOC_PLAT_INFO           *PlatInfo;
>    UINT32                            GicRedistCount;
>    UINT32                            GicCpuCount;
>    UINT32                            ProcHierarchyInfoCount;
> @@ -1718,8 +1724,6 @@ GetArmNameSpaceObject (
>    Status = EFI_NOT_FOUND;
>    PlatformRepo = This->PlatRepoInfo;
>
> -  // Probe for multi chip information
> -  PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
>    if (PlatInfo->MultichipMode == 1) {
>      GicRedistCount = 2;
>      GicCpuCount = PLAT_CPU_COUNT * 2;
> diff --git a/Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.c b/Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.c
> new file mode 100644
> index 000000000000..ff6a6a7933c3
> --- /dev/null
> +++ b/Platform/ARM/N1Sdp/Drivers/N1SdpNtFwConfigPei/NtFwConfigPei.c
> @@ -0,0 +1,133 @@
> +/** @file
> +
> +  Copyright (c) 2023, ARM Limited. All rights reserved.<BR>
> +  SPDX-License-Identifier: BSD-2-Clause-Patent
> +
> +**/
> +
> +#include <Library/DebugLib.h>
> +#include <Library/HobLib.h>
> +#include <Library/PeiServicesLib.h>
> +
> +#include <NeoverseN1Soc.h>
> +#include <libfdt.h>
> +
> +STATIC EFI_PEI_PPI_DESCRIPTOR  gPpi;
> +
> +/**
> +  The entrypoint of the module, parse NtFwConfig and produce the PPI and HOB.
> +
> +  @param[in]  FileHandle   Handle of the file being invoked.
> +  @param[in]  PeiServices  Describes the list of possible PEI Services.
> +
> +  @retval EFI_SUCCESS      Either no NT_FW_CONFIG was given by EL3 firmware
> +                           OR the N1Sdp FDT HOB was successfully created.
> +  @retval EFI_UNSUPPORTED  FDT header sanity check failed.
> +  @retval *                Other errors are possible.
> +**/
> +
> +EFI_STATUS
> +EFIAPI
> +Load (
> +    IN EFI_PEI_FILE_HANDLE     FileHandle,
> +    IN CONST EFI_PEI_SERVICES  **PeiServices
> +  )
> +{
> +  CONST NEOVERSEN1SOC_EL3_FW_HANDOFF_PARAM_PPI *ParamPpi;
> +  CONST UINT32                                 *Property;
> +  INT32                                        Offset;
> +  NEOVERSEN1SOC_PLAT_INFO                      *PlatInfo;
> +  INT32                                        Status;
> +
> +  PlatInfo = BuildGuidHob (
> +               &gArmNeoverseN1SocPlatformInfoDescriptorGuid,
> +               sizeof (*PlatInfo)
> +               );
> +
> +  if (PlatInfo == NULL) {
> +    DEBUG ((
> +      DEBUG_ERROR,
> +      "[%a]: failed to allocate platform info HOB\n",
> +      gEfiCallerBaseName
> +      ));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  Status = PeiServicesLocatePpi (
> +             &gArmNeoverseN1SocParameterPpiGuid,
> +             0,
> +             NULL,
> +             (VOID **)&ParamPpi
> +             );
> +
> +  if (EFI_ERROR (Status)) {
> +    DEBUG ((
> +      DEBUG_ERROR,
> +      "[%a]: failed to locate gArmNeoverseN1SocParameterPpiGuid - %r\n",
> +      gEfiCallerBaseName,
> +      Status
> +      ));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  if (fdt_check_header (ParamPpi->NtFwConfig) != 0) {
> +    DEBUG ((DEBUG_ERROR, "Invalid DTB file %p passed\n", ParamPpi->NtFwConfig));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  Offset = fdt_subnode_offset (ParamPpi->NtFwConfig, 0, "platform-info");
> +  if (Offset == -FDT_ERR_NOTFOUND) {
> +    DEBUG ((DEBUG_ERROR, "Invalid DTB : platform-info node not found\n"));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  Property = fdt_getprop (ParamPpi->NtFwConfig, Offset, "local-ddr-size", NULL);
> +  if (Property == NULL) {
> +    DEBUG ((DEBUG_ERROR, "local-ddr-size property not found\n"));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  PlatInfo->LocalDdrSize = fdt32_to_cpu (*Property);
> +
> +  Property = fdt_getprop (ParamPpi->NtFwConfig, Offset, "remote-ddr-size", NULL);
> +  if (Property == NULL) {
> +    DEBUG ((DEBUG_ERROR, "remote-ddr-size property not found\n"));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  PlatInfo->RemoteDdrSize = fdt32_to_cpu (*Property);
> +
> +  Property = fdt_getprop (ParamPpi->NtFwConfig, Offset, "secondary-chip-count", NULL);
> +  if (Property == NULL) {
> +    DEBUG ((DEBUG_ERROR, "secondary-chip-count property not found\n"));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  PlatInfo->SecondaryChipCount = fdt32_to_cpu (*Property);
> +
> +  Property = fdt_getprop (ParamPpi->NtFwConfig, Offset, "multichip-mode", NULL);
> +  if (Property == NULL) {
> +    DEBUG ((DEBUG_ERROR, "multichip-mode property not found\n"));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  PlatInfo->MultichipMode = fdt32_to_cpu (*Property);
> +
> +  gPpi.Flags = EFI_PEI_PPI_DESCRIPTOR_PPI
> +               | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST;
> +  gPpi.Guid = &gArmNeoverseN1SocPlatformInfoDescriptorPpiGuid;
> +  gPpi.Ppi  = PlatInfo;
> +
> +  Status = PeiServicesInstallPpi (&gPpi);
> +  if (EFI_ERROR (Status)) {
> +    DEBUG ((
> +      DEBUG_ERROR,
> +      "[%a]: failed to install PEI service - %r\n",
> +      gEfiCallerBaseName,
> +      Status
> +      ));
> +    return EFI_INVALID_PARAMETER;
> +  }
> +
> +  return EFI_SUCCESS;
> +}
> diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c
> index c0effd37f333..52ee6299b3fe 100644
> --- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c
> +++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.c
> @@ -1,6 +1,6 @@
>  /** @file
>
> -  Copyright (c) 2018-2021, ARM Limited. All rights reserved.<BR>
> +  Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.<BR>
>
>    SPDX-License-Identifier: BSD-2-Clause-Patent
>
> @@ -8,8 +8,12 @@
>
>  #include <Library/ArmPlatformLib.h>
>  #include <Library/BaseLib.h>
> +#include <NeoverseN1Soc.h>
>  #include <Ppi/ArmMpCoreInfo.h>
>
> +UINT64  gArgNtFwConfigDtPtr;
> +STATIC  NEOVERSEN1SOC_EL3_FW_HANDOFF_PARAM_PPI mNeoverseN1SocParameterPpi;
> +
>  STATIC ARM_CORE_INFO mCoreInfoTable[] = {
>    { 0x0, 0x0 }, // Cluster 0, Core 0
>    { 0x0, 0x1 }, // Cluster 0, Core 1
> @@ -46,6 +50,7 @@ ArmPlatformInitialize (
>    IN     UINTN                  MpId
>    )
>  {
> +  mNeoverseN1SocParameterPpi.NtFwConfig = (VOID *)gArgNtFwConfigDtPtr;
>    return RETURN_SUCCESS;
>  }
>
> @@ -80,6 +85,11 @@ EFI_PEI_PPI_DESCRIPTOR gPlatformPpiTable[] = {
>      EFI_PEI_PPI_DESCRIPTOR_PPI,
>      &gArmMpCoreInfoPpiGuid,
>      &mMpCoreInfoPpi
> +  },
> +  {
> +    EFI_PEI_PPI_DESCRIPTOR_PPI,
> +    &gArmNeoverseN1SocParameterPpiGuid,
> +    &mNeoverseN1SocParameterPpi
>    }
>  };
>
> diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
> index 9e8a1efc557d..d6ef92677231 100644
> --- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
> +++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
> @@ -1,6 +1,6 @@
>  /** @file
>
> -  Copyright (c) 2018 - 2021, ARM Limited. All rights reserved.<BR>
> +  Copyright (c) 2018 - 2023, ARM Limited. All rights reserved.<BR>
>
>    SPDX-License-Identifier: BSD-2-Clause-Patent
>
> @@ -10,6 +10,7 @@
>  #include <Library/DebugLib.h>
>  #include <Library/HobLib.h>
>  #include <Library/MemoryAllocationLib.h>
> +#include <Library/PeiServicesLib.h>
>  #include <NeoverseN1Soc.h>
>
>  // The total number of descriptors, including the final "end-of-table" descriptor.
> @@ -30,15 +31,31 @@ ArmPlatformGetVirtualMemoryMap (
>    IN     ARM_MEMORY_REGION_DESCRIPTOR  **VirtualMemoryMap
>    )
>  {
> -  UINTN                         Index;
> -  ARM_MEMORY_REGION_DESCRIPTOR  *VirtualMemoryTable;
> -  EFI_RESOURCE_ATTRIBUTE_TYPE   ResourceAttributes;
> -  NEOVERSEN1SOC_PLAT_INFO       *PlatInfo;
> -  UINT64                        DramBlock2Size;
> -  UINT64                        RemoteDdrSize;
> +  UINTN                          Index;
> +  ARM_MEMORY_REGION_DESCRIPTOR   *VirtualMemoryTable;
> +  EFI_RESOURCE_ATTRIBUTE_TYPE    ResourceAttributes;
> +  CONST NEOVERSEN1SOC_PLAT_INFO  *PlatInfo;
> +  UINT64                         DramBlock2Size;
> +  UINT64                         RemoteDdrSize;
> +  EFI_STATUS                     Status;
>
>    Index = 0;
> -  PlatInfo = (NEOVERSEN1SOC_PLAT_INFO *)NEOVERSEN1SOC_PLAT_INFO_STRUCT_BASE;
> +
> +  Status = PeiServicesLocatePpi (
> +             &gArmNeoverseN1SocPlatformInfoDescriptorPpiGuid,
> +             0,
> +             NULL,
> +             (VOID **)&PlatInfo
> +             );
> +  if (EFI_ERROR (Status)) {
> +    DEBUG ((
> +      DEBUG_ERROR,
> +      "[%a]: failed to locate gArmNeoverseN1SocPlatformInfoDescriptorPpiGuid - %r\n",
> +      gEfiCallerBaseName,
> +      Status
> +      ));
> +  }
> +
>    DramBlock2Size = ((UINT64)(PlatInfo->LocalDdrSize -
>                               NEOVERSEN1SOC_DRAM_BLOCK1_SIZE / SIZE_1GB) *
>                              (UINT64)SIZE_1GB);
> diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
> index 8d2069dea837..cbbe7aae9858 100644
> --- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
> +++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/AArch64/Helper.S
> @@ -1,6 +1,6 @@
>  /** @file
>  *
> -*  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
> +*  Copyright (c) 2019 - 2023, ARM Limited. All rights reserved.
>  *
>  *  SPDX-License-Identifier: BSD-2-Clause-Patent
>  *
> @@ -25,6 +25,8 @@ GCC_ASM_EXPORT(ArmPlatformIsPrimaryCore)
>  // the UEFI firmware through the CPU registers.
>  //
>  ASM_PFX(ArmPlatformPeiBootAction):
> +  adr  x10, gArgNtFwConfigDtPtr
> +  str  x0, [x10]
>    ret
>
>  //
> --
> 2.25.1
>
>
>
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  reply	other threads:[~2023-10-11  5:25 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-23 11:03 [edk2-devel] [edk2-platforms][PATCH V3 1/1] Platform/ARM/N1sdp: Add support to parse NT_FW_CONFIG sahil
2023-10-11  5:25 ` chandni cherukuri [this message]
2023-12-07 10:52 ` Thomas Abraham
2023-12-12 17:10 ` Sami Mujawar

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