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-rw-r--r--MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c43
-rw-r--r--MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.h10
-rw-r--r--MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c16
3 files changed, 47 insertions, 22 deletions
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c b/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c
index 99fb3521d5..d0ad1582e4 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.c
@@ -132,8 +132,9 @@ UsbHcFreeMemBlock (
/**
Alloc some memory from the block.
- @param Block The memory block to allocate memory from.
- @param Units Number of memory units to allocate.
+ @param Block The memory block to allocate memory from.
+ @param Units Number of memory units to allocate.
+ @param AllocationForRing The allocated memory is for Ring or not.
@return The pointer to the allocated memory. If couldn't allocate the needed memory,
the return value is NULL.
@@ -142,7 +143,8 @@ UsbHcFreeMemBlock (
VOID *
UsbHcAllocMemFromBlock (
IN USBHC_MEM_BLOCK *Block,
- IN UINTN Units
+ IN UINTN Units,
+ IN BOOLEAN AllocationForRing
)
{
UINTN Byte;
@@ -151,12 +153,15 @@ UsbHcAllocMemFromBlock (
UINT8 StartBit;
UINTN Available;
UINTN Count;
+ UINTN MemUnitAddr;
+ UINTN AlignmentMask;
ASSERT ((Block != 0) && (Units != 0));
- StartByte = 0;
- StartBit = 0;
- Available = 0;
+ StartByte = 0;
+ StartBit = 0;
+ Available = 0;
+ AlignmentMask = ~((UINTN)USBHC_MEM_TRB_RINGS_BOUNDARY - 1);
for (Byte = 0, Bit = 0; Byte < Block->BitsLen;) {
//
@@ -165,6 +170,20 @@ UsbHcAllocMemFromBlock (
// Available counts the consective number of zero bit.
//
if (!USB_HC_BIT_IS_SET (Block->Bits[Byte], Bit)) {
+ if (AllocationForRing && (Available != 0)) {
+ MemUnitAddr = (UINTN)Block->BufHost + (Byte * 8 + Bit) * USBHC_MEM_UNIT;
+ if ((MemUnitAddr & AlignmentMask) != ((MemUnitAddr - USBHC_MEM_UNIT) & AlignmentMask)) {
+ //
+ // If the TRB Ring memory cross 64K-byte boundary, then restart the
+ // search starting at current memory unit.
+ // Doing so is to meet the TRB Ring boundary requirement in XHCI spec.
+ //
+ Available = 0;
+ StartByte = Byte;
+ StartBit = Bit;
+ }
+ }
+
Available++;
if (Available >= Units) {
@@ -438,8 +457,9 @@ UsbHcFreeMemPool (
Allocate some memory from the host controller's memory pool
which can be used to communicate with host controller.
- @param Pool The host controller's memory pool.
- @param Size Size of the memory to allocate.
+ @param Pool The host controller's memory pool.
+ @param Size Size of the memory to allocate.
+ @param AllocationForRing The allocated memory is for Ring or not.
@return The allocated memory or NULL.
@@ -447,7 +467,8 @@ UsbHcFreeMemPool (
VOID *
UsbHcAllocateMem (
IN USBHC_MEM_POOL *Pool,
- IN UINTN Size
+ IN UINTN Size,
+ IN BOOLEAN AllocationForRing
)
{
USBHC_MEM_BLOCK *Head;
@@ -466,7 +487,7 @@ UsbHcAllocateMem (
// First check whether current memory blocks can satisfy the allocation.
//
for (Block = Head; Block != NULL; Block = Block->Next) {
- Mem = UsbHcAllocMemFromBlock (Block, AllocSize / USBHC_MEM_UNIT);
+ Mem = UsbHcAllocMemFromBlock (Block, AllocSize / USBHC_MEM_UNIT, AllocationForRing);
if (Mem != NULL) {
ZeroMem (Mem, Size);
@@ -501,7 +522,7 @@ UsbHcAllocateMem (
// Add the new memory block to the pool, then allocate memory from it
//
UsbHcInsertMemBlockToPool (Head, NewBlock);
- Mem = UsbHcAllocMemFromBlock (NewBlock, AllocSize / USBHC_MEM_UNIT);
+ Mem = UsbHcAllocMemFromBlock (NewBlock, AllocSize / USBHC_MEM_UNIT, AllocationForRing);
if (Mem != NULL) {
ZeroMem (Mem, Size);
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.h b/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.h
index 48ae86141c..c85b0b919f 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.h
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/UsbHcMem.h
@@ -48,6 +48,8 @@ typedef struct _USBHC_MEM_POOL {
#define USBHC_MEM_ROUND(Len) (((Len) + USBHC_MEM_UNIT_MASK) & (~USBHC_MEM_UNIT_MASK))
+#define USBHC_MEM_TRB_RINGS_BOUNDARY SIZE_64KB
+
//
// Advance the byte and bit to the next bit, adjust byte accordingly.
//
@@ -92,8 +94,9 @@ UsbHcFreeMemPool (
Allocate some memory from the host controller's memory pool
which can be used to communicate with host controller.
- @param Pool The host controller's memory pool.
- @param Size Size of the memory to allocate.
+ @param Pool The host controller's memory pool.
+ @param Size Size of the memory to allocate.
+ @param AllocationForRing The allocated memory is for Ring or not.
@return The allocated memory or NULL.
@@ -101,7 +104,8 @@ UsbHcFreeMemPool (
VOID *
UsbHcAllocateMem (
IN USBHC_MEM_POOL *Pool,
- IN UINTN Size
+ IN UINTN Size,
+ IN BOOLEAN AllocationForRing
);
/**
diff --git a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
index 4ae0297607..13b0400e83 100644
--- a/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
+++ b/MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c
@@ -506,7 +506,7 @@ XhcInitSched (
// Software shall set Device Context Base Address Array entries for unallocated Device Slots to '0'.
//
Entries = (Xhc->MaxSlotsEn + 1) * sizeof (UINT64);
- Dcbaa = UsbHcAllocateMem (Xhc->MemPool, Entries);
+ Dcbaa = UsbHcAllocateMem (Xhc->MemPool, Entries, FALSE);
ASSERT (Dcbaa != NULL);
ZeroMem (Dcbaa, Entries);
@@ -795,7 +795,7 @@ CreateEventRing (
ASSERT (EventRing != NULL);
Size = sizeof (TRB_TEMPLATE) * EVENT_RING_TRB_NUMBER;
- Buf = UsbHcAllocateMem (Xhc->MemPool, Size);
+ Buf = UsbHcAllocateMem (Xhc->MemPool, Size, TRUE);
ASSERT (Buf != NULL);
ASSERT (((UINTN)Buf & 0x3F) == 0);
ZeroMem (Buf, Size);
@@ -814,7 +814,7 @@ CreateEventRing (
EventRing->EventRingCCS = 1;
Size = sizeof (EVENT_RING_SEG_TABLE_ENTRY) * ERST_NUMBER;
- Buf = UsbHcAllocateMem (Xhc->MemPool, Size);
+ Buf = UsbHcAllocateMem (Xhc->MemPool, Size, FALSE);
ASSERT (Buf != NULL);
ASSERT (((UINTN)Buf & 0x3F) == 0);
ZeroMem (Buf, Size);
@@ -892,7 +892,7 @@ CreateTransferRing (
LINK_TRB *EndTrb;
EFI_PHYSICAL_ADDRESS PhyAddr;
- Buf = UsbHcAllocateMem (Xhc->MemPool, sizeof (TRB_TEMPLATE) * TrbNum);
+ Buf = UsbHcAllocateMem (Xhc->MemPool, sizeof (TRB_TEMPLATE) * TrbNum, TRUE);
ASSERT (Buf != NULL);
ASSERT (((UINTN)Buf & 0x3F) == 0);
ZeroMem (Buf, sizeof (TRB_TEMPLATE) * TrbNum);
@@ -2182,7 +2182,7 @@ XhcInitializeDeviceSlot (
// 4.3.3 Device Slot Initialization
// 1) Allocate an Input Context data structure (6.2.5) and initialize all fields to '0'.
//
- InputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (INPUT_CONTEXT));
+ InputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (INPUT_CONTEXT), FALSE);
ASSERT (InputContext != NULL);
ASSERT (((UINTN)InputContext & 0x3F) == 0);
ZeroMem (InputContext, sizeof (INPUT_CONTEXT));
@@ -2284,7 +2284,7 @@ XhcInitializeDeviceSlot (
//
// 6) Allocate the Output Device Context data structure (6.2.1) and initialize it to '0'.
//
- OutputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (DEVICE_CONTEXT));
+ OutputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (DEVICE_CONTEXT), FALSE);
ASSERT (OutputContext != NULL);
ASSERT (((UINTN)OutputContext & 0x3F) == 0);
ZeroMem (OutputContext, sizeof (DEVICE_CONTEXT));
@@ -2398,7 +2398,7 @@ XhcInitializeDeviceSlot64 (
// 4.3.3 Device Slot Initialization
// 1) Allocate an Input Context data structure (6.2.5) and initialize all fields to '0'.
//
- InputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (INPUT_CONTEXT_64));
+ InputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (INPUT_CONTEXT_64), FALSE);
ASSERT (InputContext != NULL);
ASSERT (((UINTN)InputContext & 0x3F) == 0);
ZeroMem (InputContext, sizeof (INPUT_CONTEXT_64));
@@ -2500,7 +2500,7 @@ XhcInitializeDeviceSlot64 (
//
// 6) Allocate the Output Device Context data structure (6.2.1) and initialize it to '0'.
//
- OutputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (DEVICE_CONTEXT_64));
+ OutputContext = UsbHcAllocateMem (Xhc->MemPool, sizeof (DEVICE_CONTEXT_64), FALSE);
ASSERT (OutputContext != NULL);
ASSERT (((UINTN)OutputContext & 0x3F) == 0);
ZeroMem (OutputContext, sizeof (DEVICE_CONTEXT_64));
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 17:09:12 +0000