From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=92.121.34.13; helo=inva020.nxp.com; envelope-from=meenakshi.aggarwal@nxp.com; receiver=edk2-devel@lists.01.org Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 51B332119621B for ; Wed, 28 Nov 2018 01:16:33 -0800 (PST) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 1422A1A030F; Wed, 28 Nov 2018 10:16:32 +0100 (CET) Received: from inv0113.in-blr01.nxp.com (inv0113.in-blr01.nxp.com [165.114.116.118]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 6A9591A02ED; Wed, 28 Nov 2018 10:16:31 +0100 (CET) Received: from uefi-OptiPlex-790.ap.freescale.net (uefi-OptiPlex-790.ap.freescale.net [10.232.132.78]) by inv0113.in-blr01.nxp.com (Postfix) with ESMTP id B9DE4363; Wed, 28 Nov 2018 14:46:30 +0530 (IST) From: Meenakshi Aggarwal To: ard.biesheuvel@linaro.org, leif.lindholm@linaro.org, michael.d.kinney@intel.com, edk2-devel@lists.01.org Date: Wed, 28 Nov 2018 20:31:50 +0530 Message-Id: <1543417315-5763-37-git-send-email-meenakshi.aggarwal@nxp.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1543417315-5763-1-git-send-email-meenakshi.aggarwal@nxp.com> References: <1518771035-6733-1-git-send-email-meenakshi.aggarwal@nxp.com> <1543417315-5763-1-git-send-email-meenakshi.aggarwal@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Subject: [PATCH edk2-platforms 36/41] Silicon/NXP: Implement EFI_CPU_IO2_PROTOCOL X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Nov 2018 09:16:33 -0000 From: Vabhav NXP SOC has mutiple PCIe RCs,Adding respective implementation of EFI_CPU_IO2_PROTOCOL to provide Memory Space Read/Write functions used by generic Host Bridge Driver including correct value for the translation offset during MMIO accesses Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Vabhav Signed-off-by: Meenakshi Aggarwal --- Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c | 633 ++++++++++++++++++++++ Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf | 49 ++ 2 files changed, 682 insertions(+) create mode 100644 Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c create mode 100644 Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf diff --git a/Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c b/Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c new file mode 100644 index 0000000..b5c175b --- /dev/null +++ b/Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.c @@ -0,0 +1,633 @@ +/** @file + Produces the CPU I/O 2 Protocol. + + Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.
+ Copyright (c) 2016, Linaro Ltd. All rights reserved.
+ Copyright 2018 NXP + + 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 +#include +#include +#include +#include +#include +#include + +#define MAX_IO_PORT_ADDRESS PCI_SEG_PORTIO_LIMIT + +// +// Handle for the CPU I/O 2 Protocol +// +STATIC EFI_HANDLE mHandle; + +// +// Lookup table for increment values based on transfer widths +// +STATIC CONST UINT8 mInStride[] = { + 1, // EfiCpuIoWidthUint8 + 2, // EfiCpuIoWidthUint16 + 4, // EfiCpuIoWidthUint32 + 8, // EfiCpuIoWidthUint64 + 0, // EfiCpuIoWidthFifoUint8 + 0, // EfiCpuIoWidthFifoUint16 + 0, // EfiCpuIoWidthFifoUint32 + 0, // EfiCpuIoWidthFifoUint64 + 1, // EfiCpuIoWidthFillUint8 + 2, // EfiCpuIoWidthFillUint16 + 4, // EfiCpuIoWidthFillUint32 + 8 // EfiCpuIoWidthFillUint64 +}; + +// +// Lookup table for increment values based on transfer widths +// +STATIC CONST UINT8 mOutStride[] = { + 1, // EfiCpuIoWidthUint8 + 2, // EfiCpuIoWidthUint16 + 4, // EfiCpuIoWidthUint32 + 8, // EfiCpuIoWidthUint64 + 1, // EfiCpuIoWidthFifoUint8 + 2, // EfiCpuIoWidthFifoUint16 + 4, // EfiCpuIoWidthFifoUint32 + 8, // EfiCpuIoWidthFifoUint64 + 0, // EfiCpuIoWidthFillUint8 + 0, // EfiCpuIoWidthFillUint16 + 0, // EfiCpuIoWidthFillUint32 + 0 // EfiCpuIoWidthFillUint64 +}; + +/** + Check parameters to a CPU I/O 2 Protocol service request. + + 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. + + @param[in] MmioOperation TRUE for an MMIO operation, FALSE for I/O Port operation. + @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 + 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. + + @retval EFI_SUCCESS The parameters for this request pass the checks. + @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, + and Count is not valid for this PI system. + +**/ +STATIC +EFI_STATUS +CpuIoCheckParameter ( + IN BOOLEAN MmioOperation, + IN EFI_CPU_IO_PROTOCOL_WIDTH Width, + IN UINT64 Address, + IN UINTN Count, + IN VOID *Buffer + ) +{ + UINT64 MaxCount; + UINT64 Limit; + + // + // Check to see if Buffer is NULL + // + if (Buffer == NULL) { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // Check to see if Width is in the valid range + // + if ((UINT32)Width >= EfiCpuIoWidthMaximum) { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // For FIFO type, the target address won't increase during the access, + // so treat Count as 1 + // + if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) { + Count = 1; + } + + // + // Check to see if Width is in the valid range for I/O Port operations + // + Width = (EFI_CPU_IO_PROTOCOL_WIDTH)(Width & 0x03); + if (!MmioOperation && (Width == EfiCpuIoWidthUint64)) { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // Check to see if Address is aligned + // + if ((Address & (UINT64)(mInStride[Width] - 1)) != 0) { + ASSERT (FALSE); + return EFI_UNSUPPORTED; + } + + // + // Check to see if any address associated with this transfer exceeds the maximum + // allowed address. The maximum address implied by the parameters passed in is + // Address + Size * Count. If the following condition is met, then the transfer + // is not supported. + // + // Address + Size * Count > (MmioOperation ? MAX_ADDRESS : MAX_IO_PORT_ADDRESS) + 1 + // + // Since MAX_ADDRESS can be the maximum integer value supported by the CPU and Count + // can also be the maximum integer value supported by the CPU, this range + // check must be adjusted to avoid all oveflow conditions. + // + Limit = (MmioOperation ? MAX_ADDRESS : MAX_IO_PORT_ADDRESS); + if (Count == 0) { + if (Address > Limit) { + ASSERT (FALSE); + return EFI_UNSUPPORTED; + } + } else { + MaxCount = RShiftU64 (Limit, Width); + if (MaxCount < (Count - 1)) { + ASSERT (FALSE); + return EFI_UNSUPPORTED; + } + if (Address > LShiftU64 (MaxCount - Count + 1, Width)) { + ASSERT (FALSE); + return EFI_UNSUPPORTED; + } + } + + // + // Check to see if Buffer is aligned + // + if (((UINTN)Buffer & ((MIN (sizeof (UINTN), mInStride[Width]) - 1))) != 0) { + ASSERT (FALSE); + return EFI_UNSUPPORTED; + } + + return EFI_SUCCESS; +} + +/** + 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. + + 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 + 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 + write operation is performed Count times from the first element of Buffer. + + @param[in] This A pointer to the EFI_CPU_IO2_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 + 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. + + @retval EFI_SUCCESS The data was read from or written to the PI system. + @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, + and Count is not valid for this PI system. + +**/ +STATIC +EFI_STATUS +EFIAPI +CpuMemoryServiceRead ( + IN EFI_CPU_IO2_PROTOCOL *This, + IN EFI_CPU_IO_PROTOCOL_WIDTH Width, + IN UINT64 Address, + IN UINTN Count, + OUT VOID *Buffer + ) +{ + EFI_STATUS Status; + UINT8 InStride; + UINT8 OutStride; + EFI_CPU_IO_PROTOCOL_WIDTH OperationWidth; + UINT8 *Uint8Buffer; + + // + // Make sure the parameters are valid + // + Status = CpuIoCheckParameter (TRUE, Width, Address, Count, Buffer); + if (EFI_ERROR (Status)) { + return Status; + } + + if ((Address >= (PCI_SEG0_MMIO32_MIN + PCI_SEG0_MMIO_OFFSET)) && + (Address <= (PCI_SEG0_MMIO32_MAX + PCI_SEG0_MMIO_OFFSET))) { + Address += PCI_SEG0_MMIO_MEMBASE - PCI_SEG0_MMIO_OFFSET; + } else if ((Address >= (PCI_SEG1_MMIO32_MIN + PCI_SEG1_MMIO_OFFSET)) && + (Address <= (PCI_SEG1_MMIO32_MAX + PCI_SEG1_MMIO_OFFSET))) { + Address += PCI_SEG1_MMIO_MEMBASE - PCI_SEG1_MMIO_OFFSET; + } else if ((Address >= (PCI_SEG2_MMIO32_MIN + PCI_SEG2_MMIO_OFFSET)) && + (Address <= (PCI_SEG2_MMIO32_MAX + PCI_SEG2_MMIO_OFFSET))) { + Address += PCI_SEG2_MMIO_MEMBASE - PCI_SEG2_MMIO_OFFSET; + } else if ((Address >= (PCI_SEG3_MMIO32_MIN + PCI_SEG3_MMIO_OFFSET)) && + (Address <= (PCI_SEG3_MMIO32_MAX + PCI_SEG3_MMIO_OFFSET))) { + Address += PCI_SEG3_MMIO_MEMBASE - PCI_SEG3_MMIO_OFFSET; + } else { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // Select loop based on the width of the transfer + // + InStride = mInStride[Width]; + OutStride = mOutStride[Width]; + OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03); + for (Uint8Buffer = Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) { + if (OperationWidth == EfiCpuIoWidthUint8) { + *Uint8Buffer = MmioRead8 ((UINTN)Address); + } else if (OperationWidth == EfiCpuIoWidthUint16) { + *((UINT16 *)Uint8Buffer) = MmioRead16 ((UINTN)Address); + } else if (OperationWidth == EfiCpuIoWidthUint32) { + *((UINT32 *)Uint8Buffer) = MmioRead32 ((UINTN)Address); + } else if (OperationWidth == EfiCpuIoWidthUint64) { + *((UINT64 *)Uint8Buffer) = MmioRead64 ((UINTN)Address); + } + } + return EFI_SUCCESS; +} + +/** + 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. + + 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 + 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 + write operation is performed Count times from the first element of Buffer. + + @param[in] This A pointer to the EFI_CPU_IO2_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 + 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. + + @retval EFI_SUCCESS The data was read from or written to the PI system. + @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, + and Count is not valid for this PI system. + +**/ +STATIC +EFI_STATUS +EFIAPI +CpuMemoryServiceWrite ( + IN EFI_CPU_IO2_PROTOCOL *This, + IN EFI_CPU_IO_PROTOCOL_WIDTH Width, + IN UINT64 Address, + IN UINTN Count, + IN VOID *Buffer + ) +{ + EFI_STATUS Status; + UINT8 InStride; + UINT8 OutStride; + EFI_CPU_IO_PROTOCOL_WIDTH OperationWidth; + UINT8 *Uint8Buffer; + + // + // Make sure the parameters are valid + // + Status = CpuIoCheckParameter (TRUE, Width, Address, Count, Buffer); + if (EFI_ERROR (Status)) { + return Status; + } + + if ((Address >= (PCI_SEG0_MMIO32_MIN + PCI_SEG0_MMIO_OFFSET)) && + (Address <= (PCI_SEG0_MMIO32_MAX + PCI_SEG0_MMIO_OFFSET))) { + Address += PCI_SEG0_MMIO_MEMBASE - PCI_SEG0_MMIO_OFFSET; + } else if ((Address >= (PCI_SEG1_MMIO32_MIN + PCI_SEG1_MMIO_OFFSET)) && + (Address <= (PCI_SEG1_MMIO32_MAX + PCI_SEG1_MMIO_OFFSET))) { + Address += PCI_SEG1_MMIO_MEMBASE - PCI_SEG1_MMIO_OFFSET; + } else if ((Address >= (PCI_SEG2_MMIO32_MIN + PCI_SEG2_MMIO_OFFSET)) && + (Address <= (PCI_SEG2_MMIO32_MAX + PCI_SEG2_MMIO_OFFSET))) { + Address += PCI_SEG2_MMIO_MEMBASE - PCI_SEG2_MMIO_OFFSET; + } else if ((Address >= (PCI_SEG3_MMIO32_MIN + PCI_SEG3_MMIO_OFFSET)) && + (Address <= (PCI_SEG3_MMIO32_MAX + PCI_SEG3_MMIO_OFFSET))) { + Address += PCI_SEG3_MMIO_MEMBASE - PCI_SEG3_MMIO_OFFSET; + } else { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // Select loop based on the width of the transfer + // + InStride = mInStride[Width]; + OutStride = mOutStride[Width]; + OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH) (Width & 0x03); + for (Uint8Buffer = Buffer; Count > 0; Address += InStride, Uint8Buffer += OutStride, Count--) { + if (OperationWidth == EfiCpuIoWidthUint8) { + MmioWrite8 ((UINTN)Address, *Uint8Buffer); + } else if (OperationWidth == EfiCpuIoWidthUint16) { + MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer)); + } else if (OperationWidth == EfiCpuIoWidthUint32) { + MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer)); + } else if (OperationWidth == EfiCpuIoWidthUint64) { + MmioWrite64 ((UINTN)Address, *((UINT64 *)Uint8Buffer)); + } + } + return EFI_SUCCESS; +} + +/** + 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. + + 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 + 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 + write operation is performed Count times from the first element of Buffer. + + @param[in] This A pointer to the EFI_CPU_IO2_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 + 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. + + @retval EFI_SUCCESS The data was read from or written to the PI system. + @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, + and Count is not valid for this PI system. + +**/ +STATIC +EFI_STATUS +EFIAPI +CpuIoServiceRead ( + IN EFI_CPU_IO2_PROTOCOL *This, + IN EFI_CPU_IO_PROTOCOL_WIDTH Width, + IN UINT64 Address, + IN UINTN Count, + OUT VOID *Buffer + ) +{ + EFI_STATUS Status; + UINT8 InStride; + UINT8 OutStride; + EFI_CPU_IO_PROTOCOL_WIDTH OperationWidth; + UINT8 *Uint8Buffer; + + // + // Make sure the parameters are valid + // + Status = CpuIoCheckParameter (FALSE, Width, Address, Count, Buffer); + if (EFI_ERROR (Status)) { + return Status; + } + + if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG0_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG0_PORTIO_OFFSET))) { + Address += PCI_SEG0_PORTIO_MEMBASE - PCI_SEG0_PORTIO_OFFSET; + } else if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG1_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG1_PORTIO_OFFSET))) { + Address += PCI_SEG1_PORTIO_MEMBASE - PCI_SEG1_PORTIO_OFFSET; + } else if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG2_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG2_PORTIO_OFFSET))) { + Address += PCI_SEG2_PORTIO_MEMBASE - PCI_SEG2_PORTIO_OFFSET; + } else if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG3_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG3_PORTIO_OFFSET))) { + Address += PCI_SEG3_PORTIO_MEMBASE - PCI_SEG3_PORTIO_OFFSET; + } else { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // Select loop based on the width of the transfer + // + InStride = mInStride[Width]; + OutStride = mOutStride[Width]; + OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH)(Width & 0x03); + + for (Uint8Buffer = Buffer; Count > 0; + Address += InStride, Uint8Buffer += OutStride, Count--) { + if (OperationWidth == EfiCpuIoWidthUint8) { + *Uint8Buffer = MmioRead8 ((UINTN)Address); + } else if (OperationWidth == EfiCpuIoWidthUint16) { + *((UINT16 *)Uint8Buffer) = MmioRead16 ((UINTN)Address); + } else if (OperationWidth == EfiCpuIoWidthUint32) { + *((UINT32 *)Uint8Buffer) = MmioRead32 ((UINTN)Address); + } + } + + return EFI_SUCCESS; +} + +/** + 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. + + 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 + 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 + write operation is performed Count times from the first element of Buffer. + + @param[in] This A pointer to the EFI_CPU_IO2_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 + 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. + + @retval EFI_SUCCESS The data was read from or written to the PI system. + @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, + and Count is not valid for this PI system. + +**/ +STATIC +EFI_STATUS +EFIAPI +CpuIoServiceWrite ( + IN EFI_CPU_IO2_PROTOCOL *This, + IN EFI_CPU_IO_PROTOCOL_WIDTH Width, + IN UINT64 Address, + IN UINTN Count, + IN VOID *Buffer + ) +{ + EFI_STATUS Status; + UINT8 InStride; + UINT8 OutStride; + EFI_CPU_IO_PROTOCOL_WIDTH OperationWidth; + UINT8 *Uint8Buffer; + + // + // Make sure the parameters are valid + // + Status = CpuIoCheckParameter (FALSE, Width, Address, Count, Buffer); + if (EFI_ERROR (Status)) { + return Status; + } + + if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG0_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG0_PORTIO_OFFSET))) { + Address += PCI_SEG0_PORTIO_MEMBASE - PCI_SEG0_PORTIO_OFFSET; + } else if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG1_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG1_PORTIO_OFFSET))) { + Address += PCI_SEG1_PORTIO_MEMBASE - PCI_SEG1_PORTIO_OFFSET; + } else if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG2_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG2_PORTIO_OFFSET))) { + Address += PCI_SEG2_PORTIO_MEMBASE - PCI_SEG2_PORTIO_OFFSET; + } else if ((Address >= (PCI_SEG_PORTIO_MIN + PCI_SEG3_PORTIO_OFFSET)) && + (Address <= (PCI_SEG_PORTIO_MAX + PCI_SEG3_PORTIO_OFFSET))) { + Address += PCI_SEG3_PORTIO_MEMBASE - PCI_SEG3_PORTIO_OFFSET; + } else { + ASSERT (FALSE); + return EFI_INVALID_PARAMETER; + } + + // + // Select loop based on the width of the transfer + // + InStride = mInStride[Width]; + OutStride = mOutStride[Width]; + OperationWidth = (EFI_CPU_IO_PROTOCOL_WIDTH)(Width & 0x03); + + for (Uint8Buffer = (UINT8 *)Buffer; Count > 0; + Address += InStride, Uint8Buffer += OutStride, Count--) { + if (OperationWidth == EfiCpuIoWidthUint8) { + MmioWrite8 ((UINTN)Address, *Uint8Buffer); + } else if (OperationWidth == EfiCpuIoWidthUint16) { + MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer)); + } else if (OperationWidth == EfiCpuIoWidthUint32) { + MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer)); + } + } + + return EFI_SUCCESS; +} + +// +// CPU I/O 2 Protocol instance +// +STATIC EFI_CPU_IO2_PROTOCOL mCpuIo2 = { + { + CpuMemoryServiceRead, + CpuMemoryServiceWrite + }, + { + CpuIoServiceRead, + CpuIoServiceWrite + } +}; + + +/** + The user Entry Point for module CpuIo2Dxe. The user code starts with this function. + + @param[in] ImageHandle The firmware allocated handle for the EFI image. + @param[in] SystemTable A pointer to the EFI System Table. + + @retval EFI_SUCCESS The entry point is executed successfully. + @retval other Some error occurs when executing this entry point. + +**/ +EFI_STATUS +EFIAPI +PciCpuIo2Initialize ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + EFI_STATUS Status; + + ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiCpuIo2ProtocolGuid); + Status = gBS->InstallMultipleProtocolInterfaces ( + &mHandle, + &gEfiCpuIo2ProtocolGuid, &mCpuIo2, + NULL + ); + ASSERT_EFI_ERROR (Status); + + return Status; +} diff --git a/Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf b/Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf new file mode 100644 index 0000000..7e958b1 --- /dev/null +++ b/Silicon/NXP/Drivers/PciCpuIo2Dxe/PciCpuIo2Dxe.inf @@ -0,0 +1,49 @@ +## @file +# Produces the CPU I/O 2 Protocol by using the services of the I/O Library. +# +# Copyright 2018 NXP +# +# 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 = 0x0001001A + BASE_NAME = PciCpuIo2Dxe + FILE_GUID = 7bff18d7-9aae-434b-9c06-f10a7e157eac + MODULE_TYPE = DXE_DRIVER + VERSION_STRING = 1.0 + ENTRY_POINT = PciCpuIo2Initialize + +[Sources] + PciCpuIo2Dxe.c + +[Packages] + MdePkg/MdePkg.dec + Silicon/NXP/NxpQoriqLs.dec + +[LibraryClasses] + BaseLib + DebugLib + IoLib + UefiBootServicesTableLib + UefiDriverEntryPoint + +[Pcd] + gNxpQoriqLsTokenSpaceGuid.PcdPciExp1BaseAddr + gNxpQoriqLsTokenSpaceGuid.PcdPciExp2BaseAddr + gNxpQoriqLsTokenSpaceGuid.PcdPciExp3BaseAddr + gNxpQoriqLsTokenSpaceGuid.PcdPciExp4BaseAddr + gNxpQoriqLsTokenSpaceGuid.PcdNumPciController + +[Protocols] + gEfiCpuIo2ProtocolGuid ## PRODUCES + +[Depex] + TRUE -- 1.9.1