On Mon, 10 Dec 2018 at 13:39, Pete Batard <[email protected]> wrote:
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Pete Batard <[email protected]>
> ---
> Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.c |
> 183 ++++++++++++++++++++
> Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.inf |
> 51 ++++++
> Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.c |
> 104 +++++++++++
> Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.inf |
> 46 +++++
> 4 files changed, 384 insertions(+)
>
> diff --git
> a/Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.c
> b/Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.c
> new file mode 100644
> index 000000000000..81d810b5d428
> --- /dev/null
> +++ b/Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.c
> @@ -0,0 +1,183 @@
> +/** @file
> + *
> + * Copyright (c) 2017-2018, Andrey Warkentin <[email protected]>
> + * Copyright (c) 2011-2015, ARM Limited. All rights reserved.
> + *
> + * This program and the accompanying materials
> + * are licensed and made available under the terms and conditions of the
> BSD License
> + * which accompanies this distribution. The full text of the license may
> be found at
> + * http://opensource.org/licenses/bsd-license.php
> + *
> + * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
> IMPLIED.
> + *
> + **/
> +
> +#include <PiPei.h>
> +
> +#include <Library/ArmMmuLib.h>
> +#include <Library/ArmPlatformLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/HobLib.h>
> +#include <Library/MemoryAllocationLib.h>
> +#include <Library/PcdLib.h>
> +
> +extern UINT64 mSystemMemoryEnd;
> +
> +VOID
> +BuildMemoryTypeInformationHob (
> + VOID
> + );
> +
> +STATIC
> +VOID
> +InitMmu (
> + IN ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable
> + )
> +{
> +
> + VOID *TranslationTableBase;
> + UINTN TranslationTableSize;
You can drop these
> + RETURN_STATUS Status;
> +
> + //Note: Because we called PeiServicesInstallPeiMemory() before to call
> InitMmu() the MMU Page Table resides in
> + // DRAM (even at the top of DRAM as it is the first permanent memory
> allocation)
> + Status = ArmConfigureMmu (MemoryTable, &TranslationTableBase,
> &TranslationTableSize);
... given that they are only passed here, and are actually OPTIONAL
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_ERROR, "Error: Failed to enable MMU\n"));
> + }
> +}
> +
> +STATIC
> +VOID
> +AddAndRTSData(ARM_MEMORY_REGION_DESCRIPTOR *Desc)
What does AddAnd mean? Can we improve the naming in the file?
Also, please use a space before (
> +{
> + BuildResourceDescriptorHob (
> + EFI_RESOURCE_SYSTEM_MEMORY,
> + EFI_RESOURCE_ATTRIBUTE_PRESENT |
> + EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE
> |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
> + EFI_RESOURCE_ATTRIBUTE_TESTED,
> + Desc->PhysicalBase,
> + Desc->Length
> + );
> +
> + BuildMemoryAllocationHob (
> + Desc->PhysicalBase,
> + Desc->Length,
> + EfiRuntimeServicesData
> + );
> +}
> +
> +STATIC
> +VOID
> +AddAndReserved(ARM_MEMORY_REGION_DESCRIPTOR *Desc)
> +{
> + BuildResourceDescriptorHob (
> + EFI_RESOURCE_SYSTEM_MEMORY,
> + EFI_RESOURCE_ATTRIBUTE_PRESENT |
> + EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE
> |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
> + EFI_RESOURCE_ATTRIBUTE_TESTED,
> + Desc->PhysicalBase,
> + Desc->Length
> + );
> +
> + BuildMemoryAllocationHob (
> + Desc->PhysicalBase,
> + Desc->Length,
> + EfiReservedMemoryType
> + );
> +}
> +
> +STATIC
> +VOID
> +AddAndMmio(ARM_MEMORY_REGION_DESCRIPTOR *Desc)
> +{
> + BuildResourceDescriptorHob (
> + EFI_RESOURCE_SYSTEM_MEMORY,
> + (EFI_RESOURCE_ATTRIBUTE_PRESENT |
> + EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
> + EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
> + EFI_RESOURCE_ATTRIBUTE_TESTED),
> + Desc->PhysicalBase,
> + Desc->Length
> + );
> +
> + BuildMemoryAllocationHob (
> + Desc->PhysicalBase,
> + Desc->Length,
> + EfiMemoryMappedIO
> + );
> +}
> +
> +/*++
> +
> +Routine Description:
> +
> +
> +
> +Arguments:
> +
> + FileHandle - Handle of the file being invoked.
> + PeiServices - Describes the list of possible PEI Services.
> +
> +Returns:
> +
> + Status - EFI_SUCCESS if the boot mode could be set
> +
> +--*/
> +EFI_STATUS
> +EFIAPI
> +MemoryPeim (
> + IN EFI_PHYSICAL_ADDRESS UefiMemoryBase,
> + IN UINT64 UefiMemorySize
> + )
> +{
> + ARM_MEMORY_REGION_DESCRIPTOR *MemoryTable;
> +
> + // Get Virtual Memory Map from the Platform Library
> + ArmPlatformGetVirtualMemoryMap (&MemoryTable);
> +
> + // Ensure PcdSystemMemorySize has been set
> + ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);
> +
This function refers to array entries by index, which is a bit nasty.
It would be better just to take the contents of
ArmPlatformGetVirtualMemoryMap() and move them into this file.
> + // FD without variable store
> + AddAndReserved(&MemoryTable[0]);
> +
> + // Variable store.
> + AddAndRTSData(&MemoryTable[1]);
> +
> + // Trusted Firmware region
> + AddAndReserved(&MemoryTable[2]);
> +
> + // Usable memory.
> + BuildResourceDescriptorHob (
> + EFI_RESOURCE_SYSTEM_MEMORY,
> + EFI_RESOURCE_ATTRIBUTE_PRESENT |
> + EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE
> |
> + EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE |
> + EFI_RESOURCE_ATTRIBUTE_TESTED,
> + MemoryTable[3].PhysicalBase,
> + MemoryTable[3].Length
> + );
> +
> + AddAndReserved(&MemoryTable[4]);
> + AddAndMmio(&MemoryTable[5]);
> +
Drop the last one. MMIO is not system memory, so it does not belong in
the memory map (unless it requires a runtime mapping, but that is up
to the DXE runtime driver)
> + // Build Memory Allocation Hob
> + InitMmu (MemoryTable);
> +
> + if (FeaturePcdGet (PcdPrePiProduceMemoryTypeInformationHob)) {
> + // Optional feature that helps prevent EFI memory map fragmentation.
> + BuildMemoryTypeInformationHob ();
> + }
> +
> + return EFI_SUCCESS;
> +}
> diff --git
> a/Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.inf
> b/Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.inf
> new file mode 100644
> index 000000000000..9f5204a210de
> --- /dev/null
> +++ b/Platform/Broadcom/Bcm283x/Library/MemoryInitPeiLib/MemoryInitPeiLib.inf
> @@ -0,0 +1,51 @@
> +#/** @file
> +#
> +# Copyright (c) 2016, Linaro, Ltd. All rights reserved.
> +# Copyright (c) 2011-2014, ARM Ltd. All rights reserved.
> +#
> +# This program and the accompanying materials
> +# are licensed and made available under the terms and conditions of the BSD
> License
> +# which accompanies this distribution. The full text of the license may be
> found at
> +# http://opensource.org/licenses/bsd-license.php
> +#
> +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
> +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
> IMPLIED.
> +#
> +#**/
> +
> +[Defines]
> + INF_VERSION = 0x00010005
> + BASE_NAME = MemoryInitPeiLib
> + FILE_GUID = 4bbc9c10-a100-43fb-8311-332ba497d1b4
> + MODULE_TYPE = BASE
> + VERSION_STRING = 1.0
> + LIBRARY_CLASS = MemoryInitPeiLib|SEC PEIM
> +
> +[Sources]
> + MemoryInitPeiLib.c
> +
> +[Packages]
> + MdePkg/MdePkg.dec
> + MdeModulePkg/MdeModulePkg.dec
> + EmbeddedPkg/EmbeddedPkg.dec
> + ArmPkg/ArmPkg.dec
> + ArmPlatformPkg/ArmPlatformPkg.dec
> +
> +[LibraryClasses]
> + DebugLib
> + HobLib
> + ArmMmuLib
> + ArmPlatformLib
> +
> +[Guids]
> + gEfiMemoryTypeInformationGuid
> +
> +[FeaturePcd]
> + gEmbeddedTokenSpaceGuid.PcdPrePiProduceMemoryTypeInformationHob
> +
> +[FixedPcd]
> + gArmTokenSpaceGuid.PcdSystemMemoryBase
> + gArmTokenSpaceGuid.PcdSystemMemorySize
> +
> +[Depex]
> + TRUE
> diff --git a/Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.c
> b/Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.c
> new file mode 100644
> index 000000000000..1a3944b71d03
> --- /dev/null
> +++ b/Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.c
> @@ -0,0 +1,104 @@
> +/** @file
> + *
> + * Support ResetSystem Runtime call using PSCI calls.
> + * Signals the gRaspberryPiEventResetGuid event group on reset.
> + *
> + * Copyright (c) 2018, Andrei Warkentin <[email protected]>
> + * Copyright (c) 2014, Linaro Ltd. All rights reserved.
> + * Copyright (c) 2013-2015, ARM Ltd. All rights reserved.
> + * Copyright (c) 2008-2009, Apple Inc. All rights reserved.
> + *
> + * This program and the accompanying materials
> + * are licensed and made available under the terms and conditions of the
> BSD License
> + * which accompanies this distribution. The full text of the license may
> be found at
> + * http://opensource.org/licenses/bsd-license.php
> + *
> + * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
> + * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
> IMPLIED.
> + *
> + **/
> +
> +#include <PiDxe.h>
> +
> +#include <Library/BaseLib.h>
> +#include <Library/DebugLib.h>
> +#include <Library/EfiResetSystemLib.h>
> +#include <Library/ArmSmcLib.h>
> +#include <Library/UefiLib.h>
> +#include <Library/UefiRuntimeLib.h>
> +
> +#include <IndustryStandard/ArmStdSmc.h>
> +
> +/**
> + Resets the entire platform.
> +
> + @param ResetType The type of reset to perform.
> + @param ResetStatus The status code for the reset.
> + @param DataSize The size, in bytes, of WatchdogData.
> + @param ResetData For a ResetType of EfiResetCold,
> EfiResetWarm, or
> + EfiResetShutdown the data buffer starts with
> a Null-terminated
> + Unicode string, optionally followed by
> additional binary data.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +LibResetSystem (
> + IN EFI_RESET_TYPE ResetType,
> + IN EFI_STATUS ResetStatus,
> + IN UINTN DataSize,
> + IN CHAR16 *ResetData OPTIONAL
> + )
> +{
> + ARM_SMC_ARGS ArmSmcArgs;
> +
> + if (!EfiAtRuntime ()) {
> + /*
> + * Only if still in UEFI.
> + */
> + EfiEventGroupSignal(&gRaspberryPiEventResetGuid);
> + }
Please drop this module entirely, and use the notification
functionality provided by MdeModulePkg/Universal/ResetSystemRuntimeDxe
(and use the generic PSCI library)
> +
> + switch (ResetType) {
> + case EfiResetPlatformSpecific:
> + // Map the platform specific reset as reboot
> + case EfiResetWarm:
> + // Map a warm reset into a cold reset
> + case EfiResetCold:
> + // Send a PSCI 0.2 SYSTEM_RESET command
> + ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;
> + break;
> + case EfiResetShutdown:
> + // Send a PSCI 0.2 SYSTEM_OFF command
> + ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;
> + break;
> + default:
> + ASSERT (FALSE);
> + return EFI_UNSUPPORTED;
> + }
> +
> + ArmCallSmc (&ArmSmcArgs);
> +
> + // We should never be here
> + DEBUG ((DEBUG_ERROR, "%a: PSCI Reset failed\n", __FUNCTION__));
> + CpuDeadLoop ();
> + return EFI_UNSUPPORTED;
> +}
> +
> +/**
> + Initialize any infrastructure required for LibResetSystem () to function.
> +
> + @param ImageHandle The firmware allocated handle for the EFI image.
> + @param SystemTable A pointer to the EFI System Table.
> +
> + @retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
> +
> +**/
> +EFI_STATUS
> +EFIAPI
> +LibInitializeResetSystem (
> + IN EFI_HANDLE ImageHandle,
> + IN EFI_SYSTEM_TABLE *SystemTable
> + )
> +{
> + return EFI_SUCCESS;
> +}
> diff --git a/Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.inf
> b/Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.inf
> new file mode 100644
> index 000000000000..1c32a4b08162
> --- /dev/null
> +++ b/Platform/Broadcom/Bcm283x/Library/ResetLib/ResetLib.inf
> @@ -0,0 +1,46 @@
> +#/** @file
> +#
> +# Reset System lib using PSCI hypervisor or secure monitor calls.
> +# Signals the gRaspberryPiEventResetGuid event group on reset.
> +#
> +# Copyright (c) 2018, Andrei Warkentin <[email protected]>
> +# Copyright (c) 2014, Linaro Ltd. All rights reserved.
> +# Copyright (c) 2014, ARM Ltd. All rights reserved.
> +# Copyright (c) 2008, Apple Inc. All rights reserved.
> +#
> +# This program and the accompanying materials
> +# are licensed and made available under the terms and conditions of the BSD
> License
> +# which accompanies this distribution. The full text of the license may be
> found at
> +# http://opensource.org/licenses/bsd-license.php
> +#
> +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
> +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR
> IMPLIED.
> +#
> +#**/
> +
> +[Defines]
> + INF_VERSION = 0x00010005
> + BASE_NAME = ResetLib
> + FILE_GUID = B9F59B69-A105-41C7-8F5A-2C60DD7FD7AB
> + MODULE_TYPE = BASE
> + VERSION_STRING = 1.0
> + LIBRARY_CLASS = EfiResetSystemLib
> +
> +[Sources]
> + ResetLib.c
> +
> +[Packages]
> + ArmPkg/ArmPkg.dec
> + MdePkg/MdePkg.dec
> + EmbeddedPkg/EmbeddedPkg.dec
> + Platform/Broadcom/Bcm283x/RaspberryPiPkg.dec
> +
> +[LibraryClasses]
> + DebugLib
> + BaseLib
> + ArmSmcLib
> + UefiLib
> + UefiRuntimeLib
> +
> +[Guids]
> + gRaspberryPiEventResetGuid
> --
> 2.17.0.windows.1
>
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