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MdeModulePkg/Bus/Pci/UhciDxe: Fix the UsbHc memory allocate and free issue

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When use the UsbHcAllocMemFromBlock() and UsbHcFreeMem() to allocate
memory and free memory for the UHC, it should use the corresponding host
address but not the pci bus address.

Signed-off-by: jdzhang <jdzhang@zd-tech.com.cn>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
jdzhang
2021-11-25 15:44:48 +08:00
committed by mergify[bot]
parent 7b28310008
commit d25b803e51
1 changed files with 4 additions and 4 deletions
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8
MdeModulePkg/Bus/Pci/UhciDxe/UsbHcMem.c
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@@ -207,7 +207,7 @@ UsbHcAllocMemFromBlock (
NEXT_BIT (Byte, Bit);
}
return Block->Buf + (StartByte * 8 + StartBit) * USBHC_MEM_UNIT;
return Block->BufHost + (StartByte * 8 + StartBit) * USBHC_MEM_UNIT;
}
/**
@@ -508,12 +508,12 @@ UsbHcFreeMem (
// scan the memory block list for the memory block that
// completely contains the memory to free.
//
if ((Block->Buf <= ToFree) && ((ToFree + AllocSize) <= (Block->Buf + Block->BufLen))) {
if ((Block->BufHost <= ToFree) && ((ToFree + AllocSize) <= (Block->BufHost + Block->BufLen))) {
//
// compute the start byte and bit in the bit array
//
Byte = ((ToFree - Block->Buf) / USBHC_MEM_UNIT) / 8;
Bit = ((ToFree - Block->Buf) / USBHC_MEM_UNIT) % 8;
Byte = ((ToFree - Block->BufHost) / USBHC_MEM_UNIT) / 8;
Bit = ((ToFree - Block->BufHost) / USBHC_MEM_UNIT) % 8;
//
// reset associated bits in bit array