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Fix bug: The lower 2 bits of Width and stripped, Count will always be multiplied by 1, which will leave Count unchanged. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11043 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff 2010-11-12 02:10:21 +00:00
parent a605dfb387
commit c1450e1670
1 changed files with 7 additions and 7 deletions
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14
MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c
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@ -451,8 +451,8 @@ PciIoMemRead (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((Offset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}
@ -526,8 +526,8 @@ PciIoMemWrite (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((Offset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}
@ -600,8 +600,8 @@ PciIoIoRead (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((Offset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}
@ -674,8 +674,8 @@ PciIoIoWrite (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((Offset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}
@ -739,8 +739,8 @@ PciIoConfigRead (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((Offset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}
@ -804,8 +804,8 @@ PciIoConfigWrite (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((Offset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}
@ -899,8 +899,8 @@ PciIoCopyMem (
//
if (FeaturePcdGet (PcdUnalignedPciIoEnable)) {
if ((SrcOffset & ((1 << (Width & 0x03)) - 1)) != 0 || (DestOffset & ((1 << (Width & 0x03)) - 1)) != 0) {
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
Count *= (UINTN)(1 << (Width & 0x03));
Width = (EFI_PCI_IO_PROTOCOL_WIDTH) (Width & (~0x03));
}
}