tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

MdeModulePkg/AtaAtapiPassThru: Revert patch to disable Bus Master 

This patch caused Windows 10 S4 resume failure.
Considering the similar changes are reverted from PciBus driver,
revert the patch from AtaAtapiPassThru as well.

Revert "MdeModulePkg/AtaAtapiPassThru: disable only BM-DMA at
ExitBootServices()"
This reverts commit 76fd5a660d.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>
This commit is contained in:
Ruiyu Ni 2017-11-27 09:13:51 +08:00
parent dc32e820f0
commit 0641808ece
2 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.c
View File

@ -480,7 +480,8 @@ InitializeAtaAtapiPassThru (
}
/**
Disable Bus Master DMA on the device when exiting the boot services.
Disable the device (especially Bus Master DMA) when exiting the boot
services.
@param[in] Event Event for which this notification function is being
called.
@ -505,7 +506,7 @@ AtaPassThruExitBootServices (
PciIo->Attributes (
PciIo,
EfiPciIoAttributeOperationDisable,
Instance->EnabledPciAttributes & EFI_PCI_IO_ATTRIBUTE_BUS_MASTER,
Instance->EnabledPciAttributes,
NULL
);
}

3
MdeModulePkg/Bus/Ata/AtaAtapiPassThru/AtaAtapiPassThru.h
View File

@ -123,7 +123,8 @@ typedef struct {
LIST_ENTRY NonBlockingTaskList;
//
// For disabling Bus Master DMA on the device at ExitBootServices().
// For disabling the device (especially Bus Master DMA) at
// ExitBootServices().
//
EFI_EVENT ExitBootEvent;
} ATA_ATAPI_PASS_THRU_INSTANCE;