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system76-edk2/MdeModulePkg/Bus/Sd/SdBlockIoPei/SdBlockIoPei.c
Hao Wu 77af86688c MdeModulePkg/SdBlockIoPei: Support IoMmu 
Update the SdBlockIoPei driver to consume IOMMU_PPI to allocate DMA
buffer.

If no IOMMU_PPI exists, this driver still calls PEI service
to allocate DMA buffer, with assumption that DRAM==DMA.

This is a compatible change.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
2017-11-17 11:38:46 +08:00

660 lines
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/** @file
Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR>
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 "SdBlockIoPei.h"
//
// Template for SD HC Slot Data.
//
SD_PEIM_HC_SLOT gSdHcSlotTemplate = {
SD_PEIM_SLOT_SIG, // Signature
{ // Media
MSG_SD_DP,
FALSE,
TRUE,
FALSE,
0x200,
0
},
0, // SdHcBase
{ // Capability
0,
},
{ // Csd
0,
},
TRUE, // SectorAddressing
NULL // Private
};
//
// Template for SD HC Private Data.
//
SD_PEIM_HC_PRIVATE_DATA gSdHcPrivateTemplate = {
SD_PEIM_SIG, // Signature
NULL, // Pool
{ // BlkIoPpi
SdBlockIoPeimGetDeviceNo,
SdBlockIoPeimGetMediaInfo,
SdBlockIoPeimReadBlocks
},
{ // BlkIo2Ppi
EFI_PEI_RECOVERY_BLOCK_IO2_PPI_REVISION,
SdBlockIoPeimGetDeviceNo2,
SdBlockIoPeimGetMediaInfo2,
SdBlockIoPeimReadBlocks2
},
{ // BlkIoPpiList
EFI_PEI_PPI_DESCRIPTOR_PPI,
&gEfiPeiVirtualBlockIoPpiGuid,
NULL
},
{ // BlkIo2PpiList
EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
&gEfiPeiVirtualBlockIo2PpiGuid,
NULL
},
{
(EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
&gEfiEndOfPeiSignalPpiGuid,
SdBlockIoPeimEndOfPei
},
{ // Slot
{
0,
},
{
0,
},
{
0,
},
{
0,
},
{
0,
},
{
0,
}
},
0, // SlotNum
0 // TotalBlkIoDevices
};
/**
Gets the count of block I/O devices that one specific block driver detects.
This function is used for getting the count of block I/O devices that one
specific block driver detects. To the PEI ATAPI driver, it returns the number
of all the detected ATAPI devices it detects during the enumeration process.
To the PEI legacy floppy driver, it returns the number of all the legacy
devices it finds during its enumeration process. If no device is detected,
then the function will return zero.
@param[in] PeiServices General-purpose services that are available
to every PEIM.
@param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI
instance.
@param[out] NumberBlockDevices The number of block I/O devices discovered.
@retval EFI_SUCCESS The operation performed successfully.
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimGetDeviceNo (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
OUT UINTN *NumberBlockDevices
)
{
SD_PEIM_HC_PRIVATE_DATA *Private;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS (This);
*NumberBlockDevices = Private->TotalBlkIoDevices;
return EFI_SUCCESS;
}
/**
Gets a block device's media information.
This function will provide the caller with the specified block device's media
information. If the media changes, calling this function will update the media
information accordingly.
@param[in] PeiServices General-purpose services that are available to every
PEIM
@param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
@param[in] DeviceIndex Specifies the block device to which the function wants
to talk. Because the driver that implements Block I/O
PPIs will manage multiple block devices, the PPIs that
want to talk to a single device must specify the
device index that was assigned during the enumeration
process. This index is a number from one to
NumberBlockDevices.
@param[out] MediaInfo The media information of the specified block media.
The caller is responsible for the ownership of this
data structure.
@par Note:
The MediaInfo structure describes an enumeration of possible block device
types. This enumeration exists because no device paths are actually passed
across interfaces that describe the type or class of hardware that is publishing
the block I/O interface. This enumeration will allow for policy decisions
in the Recovery PEIM, such as "Try to recover from legacy floppy first,
LS-120 second, CD-ROM third." If there are multiple partitions abstracted
by a given device type, they should be reported in ascending order; this
order also applies to nested partitions, such as legacy MBR, where the
outermost partitions would have precedence in the reporting order. The
same logic applies to systems such as IDE that have precedence relationships
like "Master/Slave" or "Primary/Secondary". The master device should be
reported first, the slave second.
@retval EFI_SUCCESS Media information about the specified block device
was obtained successfully.
@retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
error.
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimGetMediaInfo (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
IN UINTN DeviceIndex,
OUT EFI_PEI_BLOCK_IO_MEDIA *MediaInfo
)
{
SD_PEIM_HC_PRIVATE_DATA *Private;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS (This);
if ((DeviceIndex == 0) || (DeviceIndex > Private->TotalBlkIoDevices)) {
return EFI_INVALID_PARAMETER;
}
MediaInfo->DeviceType = SD;
MediaInfo->MediaPresent = TRUE;
MediaInfo->LastBlock = (UINTN)Private->Slot[DeviceIndex - 1].Media.LastBlock;
MediaInfo->BlockSize = Private->Slot[DeviceIndex - 1].Media.BlockSize;
return EFI_SUCCESS;
}
/**
Reads the requested number of blocks from the specified block device.
The function reads the requested number of blocks from the device. All the
blocks are read, or an error is returned. If there is no media in the device,
the function returns EFI_NO_MEDIA.
@param[in] PeiServices General-purpose services that are available to
every PEIM.
@param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO_PPI instance.
@param[in] DeviceIndex Specifies the block device to which the function wants
to talk. Because the driver that implements Block I/O
PPIs will manage multiple block devices, PPIs that
want to talk to a single device must specify the device
index that was assigned during the enumeration process.
This index is a number from one to NumberBlockDevices.
@param[in] StartLBA The starting logical block address (LBA) to read from
on the device
@param[in] BufferSize The size of the Buffer in bytes. This number must be
a multiple of the intrinsic block size of the device.
@param[out] Buffer A pointer to the destination buffer for the data.
The caller is responsible for the ownership of the
buffer.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting
to perform the read operation.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
valid, or the buffer is not properly aligned.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
the intrinsic block size of the device.
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimReadBlocks (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_RECOVERY_BLOCK_IO_PPI *This,
IN UINTN DeviceIndex,
IN EFI_PEI_LBA StartLBA,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
UINT32 BlockSize;
UINTN NumberOfBlocks;
SD_PEIM_HC_PRIVATE_DATA *Private;
UINTN Remaining;
UINT32 MaxBlock;
Status = EFI_SUCCESS;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS (This);
//
// Check parameters
//
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
if (BufferSize == 0) {
return EFI_SUCCESS;
}
if ((DeviceIndex == 0) || (DeviceIndex > Private->TotalBlkIoDevices)) {
return EFI_INVALID_PARAMETER;
}
BlockSize = Private->Slot[DeviceIndex - 1].Media.BlockSize;
if (BufferSize % BlockSize != 0) {
return EFI_BAD_BUFFER_SIZE;
}
if (StartLBA > Private->Slot[DeviceIndex - 1].Media.LastBlock) {
return EFI_INVALID_PARAMETER;
}
NumberOfBlocks = BufferSize / BlockSize;
//
// Start to execute data transfer. The max block number in single cmd is 65535 blocks.
//
Remaining = NumberOfBlocks;
MaxBlock = 0xFFFF;
while (Remaining > 0) {
if (Remaining <= MaxBlock) {
NumberOfBlocks = Remaining;
} else {
NumberOfBlocks = MaxBlock;
}
BufferSize = NumberOfBlocks * BlockSize;
if (NumberOfBlocks != 1) {
Status = SdPeimRwMultiBlocks (&Private->Slot[DeviceIndex - 1], StartLBA, BlockSize, Buffer, BufferSize, TRUE);
} else {
Status = SdPeimRwSingleBlock (&Private->Slot[DeviceIndex - 1], StartLBA, BlockSize, Buffer, BufferSize, TRUE);
}
if (EFI_ERROR (Status)) {
return Status;
}
StartLBA += NumberOfBlocks;
Buffer = (UINT8*)Buffer + BufferSize;
Remaining -= NumberOfBlocks;
}
return Status;
}
/**
Gets the count of block I/O devices that one specific block driver detects.
This function is used for getting the count of block I/O devices that one
specific block driver detects. To the PEI ATAPI driver, it returns the number
of all the detected ATAPI devices it detects during the enumeration process.
To the PEI legacy floppy driver, it returns the number of all the legacy
devices it finds during its enumeration process. If no device is detected,
then the function will return zero.
@param[in] PeiServices General-purpose services that are available
to every PEIM.
@param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI
instance.
@param[out] NumberBlockDevices The number of block I/O devices discovered.
@retval EFI_SUCCESS The operation performed successfully.
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimGetDeviceNo2 (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
OUT UINTN *NumberBlockDevices
)
{
SD_PEIM_HC_PRIVATE_DATA *Private;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS2 (This);
*NumberBlockDevices = Private->TotalBlkIoDevices;
return EFI_SUCCESS;
}
/**
Gets a block device's media information.
This function will provide the caller with the specified block device's media
information. If the media changes, calling this function will update the media
information accordingly.
@param[in] PeiServices General-purpose services that are available to every
PEIM
@param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
@param[in] DeviceIndex Specifies the block device to which the function wants
to talk. Because the driver that implements Block I/O
PPIs will manage multiple block devices, the PPIs that
want to talk to a single device must specify the
device index that was assigned during the enumeration
process. This index is a number from one to
NumberBlockDevices.
@param[out] MediaInfo The media information of the specified block media.
The caller is responsible for the ownership of this
data structure.
@par Note:
The MediaInfo structure describes an enumeration of possible block device
types. This enumeration exists because no device paths are actually passed
across interfaces that describe the type or class of hardware that is publishing
the block I/O interface. This enumeration will allow for policy decisions
in the Recovery PEIM, such as "Try to recover from legacy floppy first,
LS-120 second, CD-ROM third." If there are multiple partitions abstracted
by a given device type, they should be reported in ascending order; this
order also applies to nested partitions, such as legacy MBR, where the
outermost partitions would have precedence in the reporting order. The
same logic applies to systems such as IDE that have precedence relationships
like "Master/Slave" or "Primary/Secondary". The master device should be
reported first, the slave second.
@retval EFI_SUCCESS Media information about the specified block device
was obtained successfully.
@retval EFI_DEVICE_ERROR Cannot get the media information due to a hardware
error.
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimGetMediaInfo2 (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
IN UINTN DeviceIndex,
OUT EFI_PEI_BLOCK_IO2_MEDIA *MediaInfo
)
{
EFI_STATUS Status;
SD_PEIM_HC_PRIVATE_DATA *Private;
EFI_PEI_BLOCK_IO_MEDIA Media;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS2 (This);
Status = SdBlockIoPeimGetMediaInfo (
PeiServices,
&Private->BlkIoPpi,
DeviceIndex,
&Media
);
if (EFI_ERROR (Status)) {
return Status;
}
CopyMem (MediaInfo, &(Private->Slot[DeviceIndex - 1].Media), sizeof (EFI_PEI_BLOCK_IO2_MEDIA));
return EFI_SUCCESS;
}
/**
Reads the requested number of blocks from the specified block device.
The function reads the requested number of blocks from the device. All the
blocks are read, or an error is returned. If there is no media in the device,
the function returns EFI_NO_MEDIA.
@param[in] PeiServices General-purpose services that are available to
every PEIM.
@param[in] This Indicates the EFI_PEI_RECOVERY_BLOCK_IO2_PPI instance.
@param[in] DeviceIndex Specifies the block device to which the function wants
to talk. Because the driver that implements Block I/O
PPIs will manage multiple block devices, PPIs that
want to talk to a single device must specify the device
index that was assigned during the enumeration process.
This index is a number from one to NumberBlockDevices.
@param[in] StartLBA The starting logical block address (LBA) to read from
on the device
@param[in] BufferSize The size of the Buffer in bytes. This number must be
a multiple of the intrinsic block size of the device.
@param[out] Buffer A pointer to the destination buffer for the data.
The caller is responsible for the ownership of the
buffer.
@retval EFI_SUCCESS The data was read correctly from the device.
@retval EFI_DEVICE_ERROR The device reported an error while attempting
to perform the read operation.
@retval EFI_INVALID_PARAMETER The read request contains LBAs that are not
valid, or the buffer is not properly aligned.
@retval EFI_NO_MEDIA There is no media in the device.
@retval EFI_BAD_BUFFER_SIZE The BufferSize parameter is not a multiple of
the intrinsic block size of the device.
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimReadBlocks2 (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_RECOVERY_BLOCK_IO2_PPI *This,
IN UINTN DeviceIndex,
IN EFI_PEI_LBA StartLBA,
IN UINTN BufferSize,
OUT VOID *Buffer
)
{
EFI_STATUS Status;
SD_PEIM_HC_PRIVATE_DATA *Private;
Status = EFI_SUCCESS;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS2 (This);
Status = SdBlockIoPeimReadBlocks (
PeiServices,
&Private->BlkIoPpi,
DeviceIndex,
StartLBA,
BufferSize,
Buffer
);
return Status;
}
/**
One notified function to cleanup the allocated DMA buffers at the end of PEI.
@param[in] PeiServices Pointer to PEI Services Table.
@param[in] NotifyDescriptor Pointer to the descriptor for the Notification
event that caused this function to execute.
@param[in] Ppi Pointer to the PPI data associated with this function.
@retval EFI_SUCCESS The function completes successfully
**/
EFI_STATUS
EFIAPI
SdBlockIoPeimEndOfPei (
IN EFI_PEI_SERVICES **PeiServices,
IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
IN VOID *Ppi
)
{
SD_PEIM_HC_PRIVATE_DATA *Private;
Private = GET_SD_PEIM_HC_PRIVATE_DATA_FROM_THIS_NOTIFY (NotifyDescriptor);
if ((Private->Pool != NULL) && (Private->Pool->Head != NULL)) {
SdPeimFreeMemPool (Private->Pool);
}
return EFI_SUCCESS;
}
/**
The user code starts with this function.
@param FileHandle Handle of the file being invoked.
@param PeiServices Describes the list of possible PEI Services.
@retval EFI_SUCCESS The driver is successfully initialized.
@retval Others Can't initialize the driver.
**/
EFI_STATUS
EFIAPI
InitializeSdBlockIoPeim (
IN EFI_PEI_FILE_HANDLE FileHandle,
IN CONST EFI_PEI_SERVICES **PeiServices
)
{
EFI_STATUS Status;
SD_PEIM_HC_PRIVATE_DATA *Private;
EDKII_SD_MMC_HOST_CONTROLLER_PPI *SdMmcHcPpi;
UINT32 Index;
UINTN *MmioBase;
UINT8 BarNum;
UINT8 SlotNum;
UINT8 Controller;
UINT64 Capacity;
SD_HC_SLOT_CAP Capability;
SD_PEIM_HC_SLOT *Slot;
SD_CSD *Csd;
SD_CSD2 *Csd2;
UINT32 CSize;
UINT32 CSizeMul;
UINT32 ReadBlLen;
//
// Shadow this PEIM to run from memory
//
if (!EFI_ERROR (PeiServicesRegisterForShadow (FileHandle))) {
return EFI_SUCCESS;
}
//
// locate Sd host controller PPI
//
Status = PeiServicesLocatePpi (
&gEdkiiPeiSdMmcHostControllerPpiGuid,
0,
NULL,
(VOID **) &SdMmcHcPpi
);
if (EFI_ERROR (Status)) {
return EFI_DEVICE_ERROR;
}
IoMmuInit ();
Controller = 0;
MmioBase = NULL;
while (TRUE) {
Status = SdMmcHcPpi->GetSdMmcHcMmioBar (SdMmcHcPpi, Controller, &MmioBase, &BarNum);
//
// When status is error, meant no controller is found
//
if (EFI_ERROR (Status)) {
break;
}
if (BarNum == 0) {
Controller++;
continue;
}
Private = AllocateCopyPool (sizeof (SD_PEIM_HC_PRIVATE_DATA), &gSdHcPrivateTemplate);
if (Private == NULL) {
Status = EFI_OUT_OF_RESOURCES;
break;
}
Private->BlkIoPpiList.Ppi = (VOID*)&Private->BlkIoPpi;
Private->BlkIo2PpiList.Ppi = (VOID*)&Private->BlkIo2Ppi;
//
// Initialize the memory pool which will be used in all transactions.
//
Status = SdPeimInitMemPool (Private);
if (EFI_ERROR (Status)) {
Status = EFI_OUT_OF_RESOURCES;
break;
}
for (Index = 0; Index < BarNum; Index++) {
Status = SdPeimHcGetCapability (MmioBase[Index], &Capability);
if (EFI_ERROR (Status)) {
continue;
}
if (Capability.SlotType != 0x1) {
DEBUG ((EFI_D_INFO, "The slot at 0x%x is not embedded slot type\n", MmioBase[Index]));
Status = EFI_UNSUPPORTED;
continue;
}
Status = SdPeimHcReset (MmioBase[Index]);
if (EFI_ERROR (Status)) {
continue;
}
Status = SdPeimHcCardDetect (MmioBase[Index]);
if (EFI_ERROR (Status)) {
continue;
}
Status = SdPeimHcInitHost (MmioBase[Index]);
if (EFI_ERROR (Status)) {
continue;
}
SlotNum = Private->SlotNum;
Slot = &Private->Slot[SlotNum];
CopyMem (Slot, &gSdHcSlotTemplate, sizeof (SD_PEIM_HC_SLOT));
Slot->Private = Private;
Slot->SdHcBase = MmioBase[Index];
CopyMem (&Slot->Capability, &Capability, sizeof (Capability));
Status = SdPeimIdentification (Slot);
if (EFI_ERROR (Status)) {
continue;
}
Csd = &Slot->Csd;
if (Csd->CsdStructure == 0) {
Slot->SectorAddressing = FALSE;
CSize = (Csd->CSizeHigh << 2 | Csd->CSizeLow) + 1;
CSizeMul = (1 << (Csd->CSizeMul + 2));
ReadBlLen = (1 << (Csd->ReadBlLen));
Capacity = MultU64x32 (MultU64x32 ((UINT64)CSize, CSizeMul), ReadBlLen);
} else {
Slot->SectorAddressing = TRUE;
Csd2 = (SD_CSD2*)(VOID*)Csd;
CSize = (Csd2->CSizeHigh << 16 | Csd2->CSizeLow) + 1;
Capacity = MultU64x32 ((UINT64)CSize, SIZE_512KB);
}
Slot->Media.LastBlock = DivU64x32 (Capacity, Slot->Media.BlockSize) - 1;
Private->TotalBlkIoDevices++;
Private->SlotNum++;
}
Controller++;
if (!EFI_ERROR (Status)) {
PeiServicesInstallPpi (&Private->BlkIoPpiList);
PeiServicesNotifyPpi (&Private->EndOfPeiNotifyList);
} else {
if (Private->Pool->Head != NULL) {
SdPeimFreeMemPool (Private->Pool);
}
}
}
return EFI_SUCCESS;
}
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