X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=IntelFrameworkModulePkg%2FUniversal%2FCpuIoDxe%2FCpuIo.h;h=4c52ed0008b9ea859a15cd018c818c36d38bcc6c;hp=6eba9c09e72952830e2cd09af290e9ed6104ae44;hb=0a6f48249a601f88af124ae1ff6814b195b699c3;hpb=e38f26a2f7f62b69fec2d84e83bcc4b45ddefdc1 diff --git a/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.h b/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.h index 6eba9c09e7..4c52ed0008 100644 --- a/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.h +++ b/IntelFrameworkModulePkg/Universal/CpuIoDxe/CpuIo.h @@ -1,7 +1,7 @@ /** @file Internal include file of CPU I/O DXE Driver. - Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.
+ Copyright (c) 2004 - 2018, Intel Corporation. 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 @@ -30,30 +30,30 @@ /** Reads memory-mapped registers. - The I/O operations are carried out exactly as requested. The caller is responsible - for satisfying any alignment and I/O width restrictions that a PI System on a - platform might require. For example on some platforms, width requests of - EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will + The I/O operations are carried out exactly as requested. The caller is responsible + for satisfying any alignment and I/O width restrictions that a PI System on a + platform might require. For example on some platforms, width requests of + EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will be handled by the driver. - - If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, - or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for + + If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, + or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for each of the Count operations that is performed. - - If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, - EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, + EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times on the same Address. - - If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, - EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, + EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times from the first element of Buffer. - + @param[in] This A pointer to the EFI_CPU_IO_PROTOCOL instance. @param[in] Width Signifies the width of the I/O or Memory operation. - @param[in] Address The base address of the I/O operation. - @param[in] Count The number of I/O operations to perform. The number of + @param[in] Address The base address of the I/O operation. + @param[in] Count The number of I/O operations to perform. The number of bytes moved is Width size * Count, starting at Address. @param[out] Buffer For read operations, the destination buffer to store the results. For write operations, the source buffer from which to write data. @@ -62,7 +62,7 @@ @retval EFI_INVALID_PARAMETER Width is invalid for this PI system. @retval EFI_INVALID_PARAMETER Buffer is NULL. @retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width. - @retval EFI_UNSUPPORTED The address range specified by Address, Width, + @retval EFI_UNSUPPORTED The address range specified by Address, Width, and Count is not valid for this PI system. **/ @@ -79,30 +79,30 @@ CpuMemoryServiceRead ( /** Writes memory-mapped registers. - The I/O operations are carried out exactly as requested. The caller is responsible - for satisfying any alignment and I/O width restrictions that a PI System on a - platform might require. For example on some platforms, width requests of - EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will + The I/O operations are carried out exactly as requested. The caller is responsible + for satisfying any alignment and I/O width restrictions that a PI System on a + platform might require. For example on some platforms, width requests of + EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will be handled by the driver. - - If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, - or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for + + If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, + or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for each of the Count operations that is performed. - - If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, - EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, + EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times on the same Address. - - If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, - EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, + EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times from the first element of Buffer. - + @param[in] This A pointer to the EFI_CPU_IO_PROTOCOL instance. @param[in] Width Signifies the width of the I/O or Memory operation. - @param[in] Address The base address of the I/O operation. - @param[in] Count The number of I/O operations to perform. The number of + @param[in] Address The base address of the I/O operation. + @param[in] Count The number of I/O operations to perform. The number of bytes moved is Width size * Count, starting at Address. @param[in] Buffer For read operations, the destination buffer to store the results. For write operations, the source buffer from which to write data. @@ -111,7 +111,7 @@ CpuMemoryServiceRead ( @retval EFI_INVALID_PARAMETER Width is invalid for this PI system. @retval EFI_INVALID_PARAMETER Buffer is NULL. @retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width. - @retval EFI_UNSUPPORTED The address range specified by Address, Width, + @retval EFI_UNSUPPORTED The address range specified by Address, Width, and Count is not valid for this PI system. **/ @@ -128,30 +128,30 @@ CpuMemoryServiceWrite ( /** Reads I/O registers. - The I/O operations are carried out exactly as requested. The caller is responsible - for satisfying any alignment and I/O width restrictions that a PI System on a - platform might require. For example on some platforms, width requests of - EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will + The I/O operations are carried out exactly as requested. The caller is responsible + for satisfying any alignment and I/O width restrictions that a PI System on a + platform might require. For example on some platforms, width requests of + EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will be handled by the driver. - - If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, - or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for + + If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, + or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for each of the Count operations that is performed. - - If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, - EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, + EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times on the same Address. - - If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, - EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, + EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times from the first element of Buffer. - + @param[in] This A pointer to the EFI_CPU_IO_PROTOCOL instance. @param[in] Width Signifies the width of the I/O or Memory operation. - @param[in] Address The base address of the I/O operation. - @param[in] Count The number of I/O operations to perform. The number of + @param[in] Address The base address of the I/O operation. + @param[in] Count The number of I/O operations to perform. The number of bytes moved is Width size * Count, starting at Address. @param[out] Buffer For read operations, the destination buffer to store the results. For write operations, the source buffer from which to write data. @@ -160,7 +160,7 @@ CpuMemoryServiceWrite ( @retval EFI_INVALID_PARAMETER Width is invalid for this PI system. @retval EFI_INVALID_PARAMETER Buffer is NULL. @retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width. - @retval EFI_UNSUPPORTED The address range specified by Address, Width, + @retval EFI_UNSUPPORTED The address range specified by Address, Width, and Count is not valid for this PI system. **/ @@ -177,30 +177,30 @@ CpuIoServiceRead ( /** Write I/O registers. - The I/O operations are carried out exactly as requested. The caller is responsible - for satisfying any alignment and I/O width restrictions that a PI System on a - platform might require. For example on some platforms, width requests of - EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will + The I/O operations are carried out exactly as requested. The caller is responsible + for satisfying any alignment and I/O width restrictions that a PI System on a + platform might require. For example on some platforms, width requests of + EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will be handled by the driver. - - If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, - or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for + + If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32, + or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for each of the Count operations that is performed. - - If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, - EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16, + EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times on the same Address. - - If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, - EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is - incremented for each of the Count operations that is performed. The read or + + If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16, + EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is + incremented for each of the Count operations that is performed. The read or write operation is performed Count times from the first element of Buffer. - + @param[in] This A pointer to the EFI_CPU_IO_PROTOCOL instance. @param[in] Width Signifies the width of the I/O or Memory operation. - @param[in] Address The base address of the I/O operation. - @param[in] Count The number of I/O operations to perform. The number of + @param[in] Address The base address of the I/O operation. + @param[in] Count The number of I/O operations to perform. The number of bytes moved is Width size * Count, starting at Address. @param[in] Buffer For read operations, the destination buffer to store the results. For write operations, the source buffer from which to write data. @@ -209,9 +209,9 @@ CpuIoServiceRead ( @retval EFI_INVALID_PARAMETER Width is invalid for this PI system. @retval EFI_INVALID_PARAMETER Buffer is NULL. @retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width. - @retval EFI_UNSUPPORTED The address range specified by Address, Width, + @retval EFI_UNSUPPORTED The address range specified by Address, Width, and Count is not valid for this PI system. - + **/ EFI_STATUS EFIAPI