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MdeModulePkg/AtaAtapiPassThru: Revert patch to disable Bus Master

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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 76fd5a660d704538a1b14a58d03a4eef9682b01c.

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
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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;