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Fix the unaligned issue of PCI read/write buffer.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8333 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
xli24
2009-05-19 07:09:45 +00:00
parent dfbb47dbd5
commit 5dc4fd7856
4 changed files with 24 additions and 24 deletions
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12
MdePkg/Library/UefiPciSegmentLibPciRootBridgeIo/PciSegmentLib.c
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@@ -1338,7 +1338,7 @@ PciSegmentReadBuffer (
//
// Read a word if StartAddress is word aligned
//
*(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);
WriteUnaligned16 (Buffer, PciSegmentRead16 (StartAddress));
StartAddress += sizeof (UINT16);
Size -= sizeof (UINT16);
Buffer = (UINT16*)Buffer + 1;
@@ -1348,7 +1348,7 @@ PciSegmentReadBuffer (
//
// Read as many double words as possible
//
*(volatile UINT32 *)Buffer = PciSegmentRead32 (StartAddress);
WriteUnaligned32 (Buffer, PciSegmentRead32 (StartAddress));
StartAddress += sizeof (UINT32);
Size -= sizeof (UINT32);
Buffer = (UINT32*)Buffer + 1;
@@ -1358,7 +1358,7 @@ PciSegmentReadBuffer (
//
// Read the last remaining word if exist
//
*(volatile UINT16 *)Buffer = PciSegmentRead16 (StartAddress);
WriteUnaligned16 (Buffer, PciSegmentRead16 (StartAddress));
StartAddress += sizeof (UINT16);
Size -= sizeof (UINT16);
Buffer = (UINT16*)Buffer + 1;
@@ -1436,7 +1436,7 @@ PciSegmentWriteBuffer (
//
// Write a word if StartAddress is word aligned
//
PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);
PciSegmentWrite16 (StartAddress, ReadUnaligned16 (Buffer));
StartAddress += sizeof (UINT16);
Size -= sizeof (UINT16);
Buffer = (UINT16*)Buffer + 1;
@@ -1446,7 +1446,7 @@ PciSegmentWriteBuffer (
//
// Write as many double words as possible
//
PciSegmentWrite32 (StartAddress, *(UINT32*)Buffer);
PciSegmentWrite32 (StartAddress, ReadUnaligned32 (Buffer));
StartAddress += sizeof (UINT32);
Size -= sizeof (UINT32);
Buffer = (UINT32*)Buffer + 1;
@@ -1456,7 +1456,7 @@ PciSegmentWriteBuffer (
//
// Write the last remaining word if exist
//
PciSegmentWrite16 (StartAddress, *(UINT16*)Buffer);
PciSegmentWrite16 (StartAddress, ReadUnaligned16 (Buffer));
StartAddress += sizeof (UINT16);
Size -= sizeof (UINT16);
Buffer = (UINT16*)Buffer + 1;