diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdeModulePkg/Core/Pei/CpuIo | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdeModulePkg/Core/Pei/CpuIo')
| -rw-r--r-- | roms/edk2/MdeModulePkg/Core/Pei/CpuIo/CpuIo.c | 535 |
1 files changed, 535 insertions, 0 deletions
diff --git a/roms/edk2/MdeModulePkg/Core/Pei/CpuIo/CpuIo.c b/roms/edk2/MdeModulePkg/Core/Pei/CpuIo/CpuIo.c new file mode 100644 index 000000000..3c62d7b60 --- /dev/null +++ b/roms/edk2/MdeModulePkg/Core/Pei/CpuIo/CpuIo.c @@ -0,0 +1,535 @@ +/** @file
+ The default version of EFI_PEI_CPU_IO_PPI support published by PeiServices in
+ PeiCore initialization phase.
+
+ EFI_PEI_CPU_IO_PPI is installed by some platform or chipset-specific PEIM that
+ abstracts the processor-visible I/O operations. When PeiCore is started, the
+ default version of EFI_PEI_CPU_IO_PPI will be assigned to PeiServices table.
+
+Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PeiMain.h"
+
+///
+/// This default instance of EFI_PEI_CPU_IO_PPI install assigned to EFI_PEI_SERVICE.CpuIo
+/// when PeiCore's initialization.
+///
+EFI_PEI_CPU_IO_PPI gPeiDefaultCpuIoPpi = {
+ {
+ PeiDefaultMemRead,
+ PeiDefaultMemWrite
+ },
+ {
+ PeiDefaultIoRead,
+ PeiDefaultIoWrite
+ },
+ PeiDefaultIoRead8,
+ PeiDefaultIoRead16,
+ PeiDefaultIoRead32,
+ PeiDefaultIoRead64,
+ PeiDefaultIoWrite8,
+ PeiDefaultIoWrite16,
+ PeiDefaultIoWrite32,
+ PeiDefaultIoWrite64,
+ PeiDefaultMemRead8,
+ PeiDefaultMemRead16,
+ PeiDefaultMemRead32,
+ PeiDefaultMemRead64,
+ PeiDefaultMemWrite8,
+ PeiDefaultMemWrite16,
+ PeiDefaultMemWrite32,
+ PeiDefaultMemWrite64
+};
+
+/**
+ Memory-based read services.
+
+ This function is to perform the Memory Access Read service based on installed
+ instance of the EFI_PEI_CPU_IO_PPI.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes.
+ @param Address The physical address of the access.
+ @param Count The number of accesses to perform.
+ @param Buffer A pointer to the buffer of data.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultMemRead (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN UINTN Count,
+ IN OUT VOID *Buffer
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ Memory-based write services.
+
+ This function is to perform the Memory Access Write service based on installed
+ instance of the EFI_PEI_CPU_IO_PPI.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes.
+ @param Address The physical address of the access.
+ @param Count The number of accesses to perform.
+ @param Buffer A pointer to the buffer of data.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultMemWrite (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN UINTN Count,
+ IN OUT VOID *Buffer
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ IO-based read services.
+
+ This function is to perform the IO-base read service for the EFI_PEI_CPU_IO_PPI.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes.
+ @param Address The physical address of the access.
+ @param Count The number of accesses to perform.
+ @param Buffer A pointer to the buffer of data.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultIoRead (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN UINTN Count,
+ IN OUT VOID *Buffer
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ IO-based write services.
+
+ This function is to perform the IO-base write service for the EFI_PEI_CPU_IO_PPI.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return EFI_NOT_YET_AVAILABLE.
+
+ @param PeiServices An indirect pointer to the PEI Services Table
+ published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Width The width of the access. Enumerated in bytes.
+ @param Address The physical address of the access.
+ @param Count The number of accesses to perform.
+ @param Buffer A pointer to the buffer of data.
+
+ @retval EFI_SUCCESS The function completed successfully.
+ @retval EFI_NOT_YET_AVAILABLE The service has not been installed.
+**/
+EFI_STATUS
+EFIAPI
+PeiDefaultIoWrite (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
+ IN UINT64 Address,
+ IN UINTN Count,
+ IN OUT VOID *Buffer
+ )
+{
+ return EFI_NOT_AVAILABLE_YET;
+}
+
+/**
+ 8-bit I/O read operations.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return An 8-bit value returned from the I/O space.
+**/
+UINT8
+EFIAPI
+PeiDefaultIoRead8 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ Reads an 16-bit I/O port.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return A 16-bit value returned from the I/O space.
+**/
+UINT16
+EFIAPI
+PeiDefaultIoRead16 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ Reads an 32-bit I/O port.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return A 32-bit value returned from the I/O space.
+**/
+UINT32
+EFIAPI
+PeiDefaultIoRead32 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ Reads an 64-bit I/O port.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return A 64-bit value returned from the I/O space.
+**/
+UINT64
+EFIAPI
+PeiDefaultIoRead64 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ 8-bit I/O write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+**/
+VOID
+EFIAPI
+PeiDefaultIoWrite8 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT8 Data
+ )
+{
+}
+
+/**
+ 16-bit I/O write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+**/
+VOID
+EFIAPI
+PeiDefaultIoWrite16 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT16 Data
+ )
+{
+}
+
+/**
+ 32-bit I/O write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+**/
+VOID
+EFIAPI
+PeiDefaultIoWrite32 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT32 Data
+ )
+{
+}
+
+/**
+ 64-bit I/O write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+**/
+VOID
+EFIAPI
+PeiDefaultIoWrite64 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT64 Data
+ )
+{
+}
+
+/**
+ 8-bit memory read operations.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return An 8-bit value returned from the memory space.
+
+**/
+UINT8
+EFIAPI
+PeiDefaultMemRead8 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ 16-bit memory read operations.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return An 16-bit value returned from the memory space.
+
+**/
+UINT16
+EFIAPI
+PeiDefaultMemRead16 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ 32-bit memory read operations.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return An 32-bit value returned from the memory space.
+
+**/
+UINT32
+EFIAPI
+PeiDefaultMemRead32 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ 64-bit memory read operations.
+
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then
+ return 0.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+
+ @return An 64-bit value returned from the memory space.
+
+**/
+UINT64
+EFIAPI
+PeiDefaultMemRead64 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address
+ )
+{
+ return 0;
+}
+
+/**
+ 8-bit memory write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+
+**/
+VOID
+EFIAPI
+PeiDefaultMemWrite8 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT8 Data
+ )
+{
+}
+
+/**
+ 16-bit memory write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+
+**/
+VOID
+EFIAPI
+PeiDefaultMemWrite16 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT16 Data
+ )
+{
+}
+
+/**
+ 32-bit memory write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+
+**/
+VOID
+EFIAPI
+PeiDefaultMemWrite32 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT32 Data
+ )
+{
+}
+
+/**
+ 64-bit memory write operations.
+ If the EFI_PEI_CPU_IO_PPI is not installed by platform/chipset PEIM, then do
+ nothing.
+
+ @param PeiServices An indirect pointer to the PEI Services Table published by the PEI Foundation.
+ @param This Pointer to local data for the interface.
+ @param Address The physical address of the access.
+ @param Data The data to write.
+
+**/
+VOID
+EFIAPI
+PeiDefaultMemWrite64 (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN CONST EFI_PEI_CPU_IO_PPI *This,
+ IN UINT64 Address,
+ IN UINT64 Data
+ )
+{
+}
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