[edk2-devel] [PATCH 2/3] Platform/SiFive: align the library and driver to MdePkg
Chai, Evan
evan.chai at intel.com
Sat Mar 11 08:53:48 UTC 2023
There are almost same implementation in MdePkg, the part in
platform package can be deprecated.
Cc: Daniel Schaefer <git at danielschaefer.me>
Signed-off-by: Evan Chai <evan.chai at intel.com>
Reviewed-by: Andrei Warkentin <andrei.warkentin at intel.com>
Reviewed-by: Sunil V L <sunilvl at ventanamicro.com>
---
.../RiscVTimerLib/BaseRiscVTimerLib.inf | 35 --
.../Library/RiscVTimerLib/RiscVTimerLib.c | 201 ------------
.../RISC-V/ProcessorPkg/RiscVProcessorPkg.dsc | 13 +-
.../ProcessorPkg/Universal/CpuDxe/CpuDxe.c | 310 ------------------
.../ProcessorPkg/Universal/CpuDxe/CpuDxe.h | 198 -----------
.../ProcessorPkg/Universal/CpuDxe/CpuDxe.inf | 49 ---
.../ProcessorPkg/Universal/CpuDxe/CpuDxe.uni | 13 -
.../Universal/CpuDxe/CpuDxeExtra.uni | 14 -
8 files changed, 6 insertions(+), 827 deletions(-)
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/RiscVTimerLib.c
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.c
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.h
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.inf
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.uni
delete mode 100644 Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxeExtra.uni
diff --git a/Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf b/Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
deleted file mode 100644
index 3c61149d..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
+++ /dev/null
@@ -1,35 +0,0 @@
-## @file
-# RISC-V Timer Library Instance.
-#
-# Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-#
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-##
-
-[Defines]
- INF_VERSION = 0x0001001b
- BASE_NAME = BaseRiscVTimerLib
- FILE_GUID = F0450728-3221-488E-8C63-BD3A8DF500E2
- MODULE_TYPE = BASE
- VERSION_STRING = 1.0
- LIBRARY_CLASS = TimerLib
-
-[Sources]
- RiscVTimerLib.c
-
-[Packages]
- MdePkg/MdePkg.dec
- Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dec
-
-[Pcd]
- gUefiRiscVPkgTokenSpaceGuid.PcdRiscVMachineTimerTickInNanoSecond
- gUefiRiscVPkgTokenSpaceGuid.PcdRiscVMachineTimerFrequencyInHerz
-
-[LibraryClasses]
- BaseLib
- PcdLib
- RiscVCpuLib
- MachineModeTimerLib
-
-
diff --git a/Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/RiscVTimerLib.c b/Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/RiscVTimerLib.c
deleted file mode 100644
index 40a04d60..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/RiscVTimerLib.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/** @file
- RISC-V instance of Timer Library.
-
- Copyright (c) 2016 - 2022, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
- Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include <Uefi.h>
-#include <Library/BaseLib.h>
-#include <Library/DebugLib.h>
-#include <Library/PcdLib.h>
-#include <Library/RiscVCpuLib.h>
-#include <Register/RiscV64/RiscVImpl.h>
-
-/**
- Stalls the CPU for at least the given number of ticks.
-
- Stalls the CPU for at least the given number of ticks. It's invoked by
- MicroSecondDelay() and NanoSecondDelay().
-
- @param Delay A period of time to delay in ticks.
-
-**/
-VOID
-InternalRiscVTimerDelay (
- IN UINT32 Delay
- )
-{
- UINT32 Ticks;
- UINT32 Times;
-
- Times = Delay >> (RISCV_TIMER_COMPARE_BITS - 2);
- Delay &= ((1 << (RISCV_TIMER_COMPARE_BITS - 2)) - 1);
- do {
- //
- // The target timer count is calculated here
- //
- Ticks = RiscVReadMachineTimerInterface () + Delay;
- Delay = 1 << (RISCV_TIMER_COMPARE_BITS - 2);
- while (((Ticks - RiscVReadMachineTimerInterface ()) & (1 << (RISCV_TIMER_COMPARE_BITS - 1))) == 0) {
- CpuPause ();
- }
- } while (Times-- > 0);
-}
-
-/**
- Stalls the CPU for at least the given number of microseconds.
-
- Stalls the CPU for the number of microseconds specified by MicroSeconds.
-
- @param MicroSeconds The minimum number of microseconds to delay.
-
- @return MicroSeconds
-
-**/
-UINTN
-EFIAPI
-MicroSecondDelay (
- IN UINTN MicroSeconds
- )
-{
- InternalRiscVTimerDelay (
- (UINT32)DivU64x32 (
- MultU64x32 (
- MicroSeconds,
- PcdGet64 (PcdRiscVMachineTimerFrequencyInHerz)
- ),
- 1000000u
- )
- );
- return MicroSeconds;
-}
-
-/**
- Stalls the CPU for at least the given number of nanoseconds.
-
- Stalls the CPU for the number of nanoseconds specified by NanoSeconds.
-
- @param NanoSeconds The minimum number of nanoseconds to delay.
-
- @return NanoSeconds
-
-**/
-UINTN
-EFIAPI
-NanoSecondDelay (
- IN UINTN NanoSeconds
- )
-{
- InternalRiscVTimerDelay (
- (UINT32)DivU64x32 (
- MultU64x32 (
- NanoSeconds,
- PcdGet64 (PcdRiscVMachineTimerFrequencyInHerz)
- ),
- 1000000000u
- )
- );
- return NanoSeconds;
-}
-
-/**
- Retrieves the current value of a 64-bit free running performance counter.
-
- Retrieves the current value of a 64-bit free running performance counter. The
- counter can either count up by 1 or count down by 1. If the physical
- performance counter counts by a larger increment, then the counter values
- must be translated. The properties of the counter can be retrieved from
- GetPerformanceCounterProperties().
-
- @return The current value of the free running performance counter.
-
-**/
-UINT64
-EFIAPI
-GetPerformanceCounter (
- VOID
- )
-{
- return (UINT64)RiscVReadMachineTimerInterface ();
-}
-
-/**return
- Retrieves the 64-bit frequency in Hz and the range of performance counter
- values.
-
- If StartValue is not NULL, then the value that the performance counter starts
- with immediately after is it rolls over is returned in StartValue. If
- EndValue is not NULL, then the value that the performance counter end with
- immediately before it rolls over is returned in EndValue. The 64-bit
- frequency of the performance counter in Hz is always returned. If StartValue
- is less than EndValue, then the performance counter counts up. If StartValue
- is greater than EndValue, then the performance counter counts down. For
- example, a 64-bit free running counter that counts up would have a StartValue
- of 0 and an EndValue of 0xFFFFFFFFFFFFFFFF. A 24-bit free running counter
- that counts down would have a StartValue of 0xFFFFFF and an EndValue of 0.
-
- @param StartValue The value the performance counter starts with when it
- rolls over.
- @param EndValue The value that the performance counter ends with before
- it rolls over.
-
- @return The frequency in Hz.
-
-**/
-UINT64
-EFIAPI
-GetPerformanceCounterProperties (
- OUT UINT64 *StartValue, OPTIONAL
- OUT UINT64 *EndValue OPTIONAL
- )
-{
- if (StartValue != NULL) {
- *StartValue = 0;
- }
-
- if (EndValue != NULL) {
- *EndValue = 32 - 1;
- }
-
- return PcdGet64 (PcdRiscVMachineTimerFrequencyInHerz);
-}
-
-/**
- Converts elapsed ticks of performance counter to time in nanoseconds.
-
- This function converts the elapsed ticks of running performance counter to
- time value in unit of nanoseconds.
-
- @param Ticks The number of elapsed ticks of running performance counter.
-
- @return The elapsed time in nanoseconds.
-
-**/
-UINT64
-EFIAPI
-GetTimeInNanoSecond (
- IN UINT64 Ticks
- )
-{
- UINT64 NanoSeconds;
- UINT32 Remainder;
-
- //
- // Ticks
- // Time = --------- x 1,000,000,000
- // Frequency
- //
- NanoSeconds = MultU64x32 (DivU64x32Remainder (Ticks, PcdGet64 (PcdRiscVMachineTimerFrequencyInHerz), &Remainder), 1000000000u);
-
- //
- // Frequency < 0x100000000, so Remainder < 0x100000000, then (Remainder * 1,000,000,000)
- // will not overflow 64-bit.
- //
- NanoSeconds += DivU64x32 (MultU64x32 ((UINT64)Remainder, 1000000000u), PcdGet64 (PcdRiscVMachineTimerFrequencyInHerz));
-
- return NanoSeconds;
-}
diff --git a/Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dsc b/Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dsc
index 0591cd6a..b8363c56 100644
--- a/Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dsc
+++ b/Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dsc
@@ -2,6 +2,7 @@
# RISC-V processor package.
#
# Copyright (c) 2021, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
+# Copyright (c) 2023, Intel Corporation. All rights reserved.<BR>
#
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@@ -39,11 +40,11 @@
!include MdePkg/MdeLibs.dsc.inc
[LibraryClasses.common]
- CpuExceptionHandlerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerDxeLib.inf
+ CpuExceptionHandlerLib|UefiCpuPkg/Library/BaseRiscV64CpuExceptionHandlerLib/BaseRiscV64CpuExceptionHandlerLib.inf
RiscVCpuLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVCpuLib/RiscVCpuLib.inf
RiscVEdk2SbiLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVEdk2SbiLib/RiscVEdk2SbiLib.inf
RiscVOpensbiLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVOpensbiLib/RiscVOpensbiLib.inf
- TimerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
+ TimerLib|UefiCpuPkg/Library/BaseRiscV64CpuTimerLib/BaseRiscV64CpuTimerLib.inf
MachineModeTimerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVReadMachineModeTimer/MachineModeTimerLib/MachineModeTimerLib.inf
#MachineModeTimerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVReadMachineModeTimer/EmulatedMachineModeTimerLib/EmulatedMachineModeTimerLib.inf
BaseLib|MdePkg/Library/BaseLib/BaseLib.inf
@@ -81,20 +82,19 @@
PeimEntryPoint|MdePkg/Library/PeimEntryPoint/PeimEntryPoint.inf
[LibraryClasses.common.DXE_CORE]
- TimerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
+ TimerLib|UefiCpuPkg/Library/BaseRiscV64CpuTimerLib/BaseRiscV64CpuTimerLib.inf
[LibraryClasses.common.DXE_DRIVER]
PcdLib|MdePkg/Library/DxePcdLib/DxePcdLib.inf
PlatformBootManagerLib|Platform/RISC-V/PlatformPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
[LibraryClasses.common.DXE_RUNTIME_DRIVER]
- TimerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
+ TimerLib|UefiCpuPkg/Library/BaseRiscV64CpuTimerLib/BaseRiscV64CpuTimerLib.inf
[LibraryClasses.common.UEFI_DRIVER]
- TimerLib|Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
+ TimerLib|UefiCpuPkg/Library/BaseRiscV64CpuTimerLib/BaseRiscV64CpuTimerLib.inf
[Components]
- Silicon/RISC-V/ProcessorPkg/Library/RiscVTimerLib/BaseRiscVTimerLib.inf
Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerDxeLib.inf
Silicon/RISC-V/ProcessorPkg/Library/RiscVFirmwareContextSbiLib/RiscVFirmwareContextSbiLib.inf
Silicon/RISC-V/ProcessorPkg/Library/PeiServicesTablePointerLibOpenSbi/PeiServicesTablePointerLibOpenSbi.inf
@@ -103,7 +103,6 @@
Silicon/RISC-V/ProcessorPkg/Library/RiscVCpuLib/RiscVCpuLib.inf
Silicon/RISC-V/ProcessorPkg/Library/RiscVEdk2SbiLib/RiscVEdk2SbiLib.inf
- Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.inf
Silicon/RISC-V/ProcessorPkg/Universal/SmbiosDxe/RiscVSmbiosDxe.inf
Silicon/RISC-V/ProcessorPkg/Universal/FdtDxe/FdtDxe.inf
Silicon/RISC-V/ProcessorPkg/Universal/PciCpuIo2Dxe/PciCpuIo2Dxe.inf
diff --git a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.c b/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.c
deleted file mode 100644
index 8d4d406e..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/** @file
- RISC-V CPU DXE driver.
-
- Copyright (c) 2016 - 2022, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#include "CpuDxe.h"
-
-//
-// Global Variables
-//
-STATIC BOOLEAN mInterruptState = FALSE;
-STATIC EFI_HANDLE mCpuHandle = NULL;
-
-EFI_CPU_ARCH_PROTOCOL gCpu = {
- CpuFlushCpuDataCache,
- CpuEnableInterrupt,
- CpuDisableInterrupt,
- CpuGetInterruptState,
- CpuInit,
- CpuRegisterInterruptHandler,
- CpuGetTimerValue,
- CpuSetMemoryAttributes,
- 1, // NumberOfTimers
- 4 // DmaBufferAlignment
-};
-
-//
-// CPU Arch Protocol Functions
-//
-
-/**
- Flush CPU data cache. If the instruction cache is fully coherent
- with all DMA operations then function can just return EFI_SUCCESS.
-
- @param This Protocol instance structure
- @param Start Physical address to start flushing from.
- @param Length Number of bytes to flush. Round up to chipset
- granularity.
- @param FlushType Specifies the type of flush operation to perform.
-
- @retval EFI_SUCCESS If cache was flushed
- @retval EFI_UNSUPPORTED If flush type is not supported.
- @retval EFI_DEVICE_ERROR If requested range could not be flushed.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuFlushCpuDataCache (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS Start,
- IN UINT64 Length,
- IN EFI_CPU_FLUSH_TYPE FlushType
- )
-{
- return EFI_SUCCESS;
-}
-
-/**
- Enables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were enabled in the CPU
- @retval EFI_DEVICE_ERROR If interrupts could not be enabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuEnableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- )
-{
- EnableInterrupts ();
- mInterruptState = TRUE;
- return EFI_SUCCESS;
-}
-
-/**
- Disables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_DEVICE_ERROR If interrupts could not be disabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuDisableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- )
-{
- DisableInterrupts ();
- mInterruptState = FALSE;
- return EFI_SUCCESS;
-}
-
-/**
- Return the state of interrupts.
-
- @param This Protocol instance structure
- @param State Pointer to the CPU's current interrupt state
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_INVALID_PARAMETER State is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetInterruptState (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- OUT BOOLEAN *State
- )
-{
- if (State == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- *State = mInterruptState;
- return EFI_SUCCESS;
-}
-
-/**
- Generates an INIT to the CPU.
-
- @param This Protocol instance structure
- @param InitType Type of CPU INIT to perform
-
- @retval EFI_SUCCESS If CPU INIT occurred. This value should never be
- seen.
- @retval EFI_DEVICE_ERROR If CPU INIT failed.
- @retval EFI_UNSUPPORTED Requested type of CPU INIT not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuInit (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_CPU_INIT_TYPE InitType
- )
-{
- return EFI_UNSUPPORTED;
-}
-
-/**
- Registers a function to be called from the CPU interrupt handler.
-
- @param This Protocol instance structure
- @param InterruptType Defines which interrupt to hook. IA-32
- valid range is 0x00 through 0xFF
- @param InterruptHandler A pointer to a function of type
- EFI_CPU_INTERRUPT_HANDLER that is called
- when a processor interrupt occurs. A null
- pointer is an error condition.
-
- @retval EFI_SUCCESS If handler installed or uninstalled.
- @retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler
- for InterruptType was previously installed.
- @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for
- InterruptType was not previously installed.
- @retval EFI_UNSUPPORTED The interrupt specified by InterruptType
- is not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuRegisterInterruptHandler (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_EXCEPTION_TYPE InterruptType,
- IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
- )
-{
- return RegisterCpuInterruptHandler (InterruptType, InterruptHandler);
-}
-
-/**
- Returns a timer value from one of the CPU's internal timers. There is no
- inherent time interval between ticks but is a function of the CPU frequency.
-
- @param This - Protocol instance structure.
- @param TimerIndex - Specifies which CPU timer is requested.
- @param TimerValue - Pointer to the returned timer value.
- @param TimerPeriod - A pointer to the amount of time that passes
- in femtoseconds (10-15) for each increment
- of TimerValue. If TimerValue does not
- increment at a predictable rate, then 0 is
- returned. The amount of time that has
- passed between two calls to GetTimerValue()
- can be calculated with the formula
- (TimerValue2 - TimerValue1) * TimerPeriod.
- This parameter is optional and may be NULL.
-
- @retval EFI_SUCCESS - If the CPU timer count was returned.
- @retval EFI_UNSUPPORTED - If the CPU does not have any readable timers.
- @retval EFI_DEVICE_ERROR - If an error occurred while reading the timer.
- @retval EFI_INVALID_PARAMETER - TimerIndex is not valid or TimerValue is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetTimerValue (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN UINT32 TimerIndex,
- OUT UINT64 *TimerValue,
- OUT UINT64 *TimerPeriod OPTIONAL
- )
-{
- if (TimerValue == NULL) {
- return EFI_INVALID_PARAMETER;
- }
-
- if (TimerIndex != 0) {
- return EFI_INVALID_PARAMETER;
- }
-
- *TimerValue = (UINT64)RiscVReadMachineTimerInterface ();
- if (TimerPeriod != NULL) {
- *TimerPeriod = DivU64x32 (
- 1000000000000000u,
- PcdGet64 (PcdRiscVMachineTimerFrequencyInHerz)
- );
- }
-
- return EFI_SUCCESS;
-}
-
-/**
- Implementation of SetMemoryAttributes() service of CPU Architecture Protocol.
-
- This function modifies the attributes for the memory region specified by BaseAddress and
- Length from their current attributes to the attributes specified by Attributes.
-
- @param This The EFI_CPU_ARCH_PROTOCOL instance.
- @param BaseAddress The physical address that is the start address of a memory region.
- @param Length The size in bytes of the memory region.
- @param Attributes The bit mask of attributes to set for the memory region.
-
- @retval EFI_SUCCESS The attributes were set for the memory region.
- @retval EFI_ACCESS_DENIED The attributes for the memory resource range specified by
- BaseAddress and Length cannot be modified.
- @retval EFI_INVALID_PARAMETER Length is zero.
- Attributes specified an illegal combination of attributes that
- cannot be set together.
- @retval EFI_OUT_OF_RESOURCES There are not enough system resources to modify the attributes of
- the memory resource range.
- @retval EFI_UNSUPPORTED The processor does not support one or more bytes of the memory
- resource range specified by BaseAddress and Length.
- The bit mask of attributes is not support for the memory resource
- range specified by BaseAddress and Length.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuSetMemoryAttributes (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Attributes
- )
-{
- DEBUG ((DEBUG_INFO, "%a: Set memory attributes not supported yet\n", __FUNCTION__));
- return EFI_SUCCESS;
-}
-
-/**
- Initialize the state information for the CPU Architectural Protocol.
-
- @param ImageHandle Image handle this driver.
- @param SystemTable Pointer to the System Table.
-
- @retval EFI_SUCCESS Thread can be successfully created
- @retval EFI_OUT_OF_RESOURCES Cannot allocate protocol data structure
- @retval EFI_DEVICE_ERROR Cannot create the thread
-
-**/
-EFI_STATUS
-EFIAPI
-InitializeCpu (
- IN EFI_HANDLE ImageHandle,
- IN EFI_SYSTEM_TABLE *SystemTable
- )
-{
- EFI_STATUS Status;
-
- //
- // Machine mode handler is initiated in CpuExceptionHandlerLibConstructor in
- // CpuExecptionHandlerLib.
- //
-
- //
- // Make sure interrupts are disabled
- //
- DisableInterrupts ();
-
- //
- // Install CPU Architectural Protocol
- //
- Status = gBS->InstallMultipleProtocolInterfaces (
- &mCpuHandle,
- &gEfiCpuArchProtocolGuid,
- &gCpu,
- NULL
- );
- ASSERT_EFI_ERROR (Status);
- return Status;
-}
diff --git a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.h b/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.h
deleted file mode 100644
index 9d70d7b6..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.h
+++ /dev/null
@@ -1,198 +0,0 @@
-/** @file
- RISC-V CPU DXE module header file.
-
- Copyright (c) 2016 - 2022, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-
- SPDX-License-Identifier: BSD-2-Clause-Patent
-
-**/
-
-#ifndef CPU_DXE_H_
-#define CPU_DXE_H_
-
-#include <PiDxe.h>
-
-#include <Protocol/Cpu.h>
-#include <Library/BaseLib.h>
-#include <Library/CpuExceptionHandlerLib.h>
-#include <Library/DebugLib.h>
-#include <Library/RiscVCpuLib.h>
-#include <Library/UefiBootServicesTableLib.h>
-#include <Library/UefiDriverEntryPoint.h>
-
-/**
- Flush CPU data cache. If the instruction cache is fully coherent
- with all DMA operations then function can just return EFI_SUCCESS.
-
- @param This Protocol instance structure
- @param Start Physical address to start flushing from.
- @param Length Number of bytes to flush. Round up to chipset
- granularity.
- @param FlushType Specifies the type of flush operation to perform.
-
- @retval EFI_SUCCESS If cache was flushed
- @retval EFI_UNSUPPORTED If flush type is not supported.
- @retval EFI_DEVICE_ERROR If requested range could not be flushed.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuFlushCpuDataCache (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS Start,
- IN UINT64 Length,
- IN EFI_CPU_FLUSH_TYPE FlushType
- );
-
-/**
- Enables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were enabled in the CPU
- @retval EFI_DEVICE_ERROR If interrupts could not be enabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuEnableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- );
-
-/**
- Disables CPU interrupts.
-
- @param This Protocol instance structure
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_DEVICE_ERROR If interrupts could not be disabled on the CPU.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuDisableInterrupt (
- IN EFI_CPU_ARCH_PROTOCOL *This
- );
-
-/**
- Return the state of interrupts.
-
- @param This Protocol instance structure
- @param State Pointer to the CPU's current interrupt state
-
- @retval EFI_SUCCESS If interrupts were disabled in the CPU.
- @retval EFI_INVALID_PARAMETER State is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetInterruptState (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- OUT BOOLEAN *State
- );
-
-/**
- Generates an INIT to the CPU.
-
- @param This Protocol instance structure
- @param InitType Type of CPU INIT to perform
-
- @retval EFI_SUCCESS If CPU INIT occurred. This value should never be
- seen.
- @retval EFI_DEVICE_ERROR If CPU INIT failed.
- @retval EFI_UNSUPPORTED Requested type of CPU INIT not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuInit (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_CPU_INIT_TYPE InitType
- );
-
-/**
- Registers a function to be called from the CPU interrupt handler.
-
- @param This Protocol instance structure
- @param InterruptType Defines which interrupt to hook. IA-32
- valid range is 0x00 through 0xFF
- @param InterruptHandler A pointer to a function of type
- EFI_CPU_INTERRUPT_HANDLER that is called
- when a processor interrupt occurs. A null
- pointer is an error condition.
-
- @retval EFI_SUCCESS If handler installed or uninstalled.
- @retval EFI_ALREADY_STARTED InterruptHandler is not NULL, and a handler
- for InterruptType was previously installed.
- @retval EFI_INVALID_PARAMETER InterruptHandler is NULL, and a handler for
- InterruptType was not previously installed.
- @retval EFI_UNSUPPORTED The interrupt specified by InterruptType
- is not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuRegisterInterruptHandler (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_EXCEPTION_TYPE InterruptType,
- IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
- );
-
-/**
- Returns a timer value from one of the CPU's internal timers. There is no
- inherent time interval between ticks but is a function of the CPU frequency.
-
- @param This - Protocol instance structure.
- @param TimerIndex - Specifies which CPU timer is requested.
- @param TimerValue - Pointer to the returned timer value.
- @param TimerPeriod - A pointer to the amount of time that passes
- in femtoseconds (10-15) for each increment
- of TimerValue. If TimerValue does not
- increment at a predictable rate, then 0 is
- returned. The amount of time that has
- passed between two calls to GetTimerValue()
- can be calculated with the formula
- (TimerValue2 - TimerValue1) * TimerPeriod.
- This parameter is optional and may be NULL.
-
- @retval EFI_SUCCESS - If the CPU timer count was returned.
- @retval EFI_UNSUPPORTED - If the CPU does not have any readable timers.
- @retval EFI_DEVICE_ERROR - If an error occurred while reading the timer.
- @retval EFI_INVALID_PARAMETER - TimerIndex is not valid or TimerValue is NULL.
-
-**/
-EFI_STATUS
-EFIAPI
-CpuGetTimerValue (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN UINT32 TimerIndex,
- OUT UINT64 *TimerValue,
- OUT UINT64 *TimerPeriod OPTIONAL
- );
-
-/**
- Set memory cacheability attributes for given range of memeory.
-
- @param This Protocol instance structure
- @param BaseAddress Specifies the start address of the
- memory range
- @param Length Specifies the length of the memory range
- @param Attributes The memory cacheability for the memory range
-
- @retval EFI_SUCCESS If the cacheability of that memory range is
- set successfully
- @retval EFI_UNSUPPORTED If the desired operation cannot be done
- @retval EFI_INVALID_PARAMETER The input parameter is not correct,
- such as Length = 0
-
-**/
-EFI_STATUS
-EFIAPI
-CpuSetMemoryAttributes (
- IN EFI_CPU_ARCH_PROTOCOL *This,
- IN EFI_PHYSICAL_ADDRESS BaseAddress,
- IN UINT64 Length,
- IN UINT64 Attributes
- );
-
-#endif
diff --git a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.inf b/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.inf
deleted file mode 100644
index a422c12e..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.inf
+++ /dev/null
@@ -1,49 +0,0 @@
-## @file
-# RISC-V CPU DXE module.
-#
-# Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-# SPDX-License-Identifier: BSD-2-Clause-Patent
-#
-##
-
-[Defines]
- INF_VERSION = 0x0001001b
- BASE_NAME = CpuDxe
- MODULE_UNI_FILE = CpuDxe.uni
- FILE_GUID = 2AEB1f3E-5B6B-441B-92C1-4A9E6FC85E92
- MODULE_TYPE = DXE_DRIVER
- VERSION_STRING = 1.0
-
- ENTRY_POINT = InitializeCpu
-
-[Packages]
- MdeModulePkg/MdeModulePkg.dec
- MdePkg/MdePkg.dec
- Silicon/RISC-V/ProcessorPkg/RiscVProcessorPkg.dec
-
-[LibraryClasses]
- BaseLib
- CpuLib
- CpuExceptionHandlerLib
- DebugLib
- MachineModeTimerLib
- RiscVCpuLib
- TimerLib
- UefiBootServicesTableLib
- UefiDriverEntryPoint
-
-[Sources]
- CpuDxe.c
- CpuDxe.h
-
-[Protocols]
- gEfiCpuArchProtocolGuid ## PRODUCES
-
-[Pcd]
- gUefiRiscVPkgTokenSpaceGuid.PcdRiscVMachineTimerFrequencyInHerz
-
-[Depex]
- TRUE
-
-[UserExtensions.TianoCore."ExtraFiles"]
- CpuDxeExtra.uni
diff --git a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.uni b/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.uni
deleted file mode 100644
index 460141a1..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxe.uni
+++ /dev/null
@@ -1,13 +0,0 @@
-// /** @file
-//
-// Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-//
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-// **/
-
-
-#string STR_MODULE_ABSTRACT #language en-US "Installs RISC-V CPU Architecture Protocol"
-
-#string STR_MODULE_DESCRIPTION #language en-US "RISC-V CPU driver installs CPU Architecture Protocol."
-
diff --git a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxeExtra.uni b/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxeExtra.uni
deleted file mode 100644
index 6f819f06..00000000
--- a/Silicon/RISC-V/ProcessorPkg/Universal/CpuDxe/CpuDxeExtra.uni
+++ /dev/null
@@ -1,14 +0,0 @@
-// /** @file
-// CpuDxe Localized Strings and Content
-//
-// Copyright (c) 2016 - 2019, Hewlett Packard Enterprise Development LP. All rights reserved.<BR>
-//
-// SPDX-License-Identifier: BSD-2-Clause-Patent
-//
-// **/
-
-#string STR_PROPERTIES_MODULE_NAME
-#language en-US
-"RISC-V Architectural DXE Driver"
-
-
--
2.39.0.windows.2
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