diff options
Diffstat (limited to 'EdkModulePkg/Bus/Pci/PciBus/Dxe/PciResourceSupport.c')
| -rw-r--r-- | EdkModulePkg/Bus/Pci/PciBus/Dxe/PciResourceSupport.c | 2314 |
1 files changed, 0 insertions, 2314 deletions
diff --git a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciResourceSupport.c b/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciResourceSupport.c deleted file mode 100644 index a6ae80f4c5..0000000000 --- a/EdkModulePkg/Bus/Pci/PciBus/Dxe/PciResourceSupport.c +++ /dev/null @@ -1,2314 +0,0 @@ -/*++
-
-Copyright (c) 2006 - 2007, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-Module Name:
-
- PciResourceSupport.c
-
-Abstract:
-
- PCI Bus Driver
-
-Revision History
-
---*/
-
-#include "pcibus.h"
-#include "PciResourceSupport.h"
-#include "PciCommand.h"
-
-EFI_STATUS
-SkipVGAAperture (
- OUT UINT64 *Start,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- The function is used to skip VGA range
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Start - add argument and description to function comment
-// TODO: Length - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- UINT64 Original;
- UINT64 Mask;
- UINT64 StartOffset;
- UINT64 LimitOffset;
-
- //
- // For legacy VGA, bit 10 to bit 15 is not decoded
- //
- Mask = 0x3FF;
-
- Original = *Start;
- StartOffset = Original & Mask;
- LimitOffset = ((*Start) + Length - 1) & Mask;
- if (LimitOffset >= VGABASE1) {
- *Start = *Start - StartOffset + VGALIMIT2 + 1;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-SkipIsaAliasAperture (
- OUT UINT64 *Start,
- IN UINT64 Length
- )
-/*++
-
-Routine Description:
-
- This function is used to skip ISA aliasing aperture
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Start - add argument and description to function comment
-// TODO: Length - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- UINT64 Original;
- UINT64 Mask;
- UINT64 StartOffset;
- UINT64 LimitOffset;
-
- //
- // For legacy ISA, bit 10 to bit 15 is not decoded
- //
- Mask = 0x3FF;
-
- Original = *Start;
- StartOffset = Original & Mask;
- LimitOffset = ((*Start) + Length - 1) & Mask;
-
- if (LimitOffset >= ISABASE) {
- *Start = *Start - StartOffset + ISALIMIT + 1;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-InsertResourceNode (
- PCI_RESOURCE_NODE *Bridge,
- PCI_RESOURCE_NODE *ResNode
- )
-/*++
-
-Routine Description:
-
- This function inserts a resource node into the resource list.
- The resource list is sorted in descend order.
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: ResNode - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- LIST_ENTRY *CurrentLink;
- PCI_RESOURCE_NODE *Temp;
- UINT64 ResNodeAlignRest;
- UINT64 TempAlignRest;
-
- InsertHeadList (&Bridge->ChildList, &ResNode->Link);
-
- CurrentLink = Bridge->ChildList.ForwardLink->ForwardLink;
- while (CurrentLink != &Bridge->ChildList) {
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (ResNode->Alignment > Temp->Alignment) {
- break;
- } else if (ResNode->Alignment == Temp->Alignment) {
- ResNodeAlignRest = ResNode->Length & ResNode->Alignment;
- TempAlignRest = Temp->Length & Temp->Alignment;
- if ((ResNodeAlignRest == 0) || (ResNodeAlignRest >= TempAlignRest)) {
- break;
- }
- }
-
- SwapListEntries (&ResNode->Link, CurrentLink);
-
- CurrentLink = ResNode->Link.ForwardLink;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-MergeResourceTree (
- PCI_RESOURCE_NODE *Dst,
- PCI_RESOURCE_NODE *Res,
- BOOLEAN TypeMerge
- )
-/*++
-
-Routine Description:
-
- This routine is used to merge two different resource tree in need of
- resoure degradation. For example, if a upstream PPB doesn't support,
- prefetchable memory decoding, the PCI bus driver will choose to call this function
- to merge prefectchable memory resource list into normal memory list.
-
- If the TypeMerge is TRUE, Res resource type is changed to the type of destination resource
- type.
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Dst - add argument and description to function comment
-// TODO: Res - add argument and description to function comment
-// TODO: TypeMerge - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- LIST_ENTRY *CurrentLink;
- PCI_RESOURCE_NODE *Temp;
-
- while (!IsListEmpty (&Res->ChildList)) {
- CurrentLink = Res->ChildList.ForwardLink;
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (TypeMerge) {
- Temp->ResType = Dst->ResType;
- }
-
- RemoveEntryList (CurrentLink);
- InsertResourceNode (Dst, Temp);
-
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-CalculateApertureIo16 (
- IN PCI_RESOURCE_NODE *Bridge
- )
-/*++
-
-Routine Description:
-
- This function is used to calculate the IO16 aperture
- for a bridge.
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- UINT64 Aperture;
- LIST_ENTRY *CurrentLink;
- PCI_RESOURCE_NODE *Node;
- UINT64 offset;
- BOOLEAN IsaEnable;
- BOOLEAN VGAEnable;
-
- //
- // Always assume there is ISA device and VGA device on the platform
- // will be customized later
- //
- IsaEnable = FALSE;
- VGAEnable = FALSE;
-
- if (FeaturePcdGet (PcdPciIsaEnable)){
- IsaEnable = TRUE;
- }
-
- if (FeaturePcdGet (PcdPciVgaEnable)){
- VGAEnable = TRUE;
- }
-
- Aperture = 0;
-
- if (!Bridge) {
- return EFI_SUCCESS;
- }
-
- CurrentLink = Bridge->ChildList.ForwardLink;
-
- //
- // Assume the bridge is aligned
- //
- while (CurrentLink != &Bridge->ChildList) {
-
- Node = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- //
- // Consider the aperture alignment
- //
- offset = Aperture & (Node->Alignment);
-
- if (offset) {
-
- Aperture = Aperture + (Node->Alignment + 1) - offset;
-
- }
-
- //
- // IsaEnable and VGAEnable can not be implemented now.
- // If both of them are enabled, then the IO resource would
- // become too limited to meet the requirement of most of devices.
- //
-
- if (IsaEnable || VGAEnable) {
- if (!IS_PCI_BRIDGE (&(Node->PciDev->Pci)) && !IS_CARDBUS_BRIDGE (&(Node->PciDev->Pci))) {
- //
- // Check if there is need to support ISA/VGA decoding
- // If so, we need to avoid isa/vga aliasing range
- //
- if (IsaEnable) {
- SkipIsaAliasAperture (
- &Aperture,
- Node->Length
- );
- offset = Aperture & (Node->Alignment);
- if (offset) {
- Aperture = Aperture + (Node->Alignment + 1) - offset;
- }
- } else if (VGAEnable) {
- SkipVGAAperture (
- &Aperture,
- Node->Length
- );
- offset = Aperture & (Node->Alignment);
- if (offset) {
- Aperture = Aperture + (Node->Alignment + 1) - offset;
- }
- }
- }
- }
-
- Node->Offset = Aperture;
-
- //
- // Increment aperture by the length of node
- //
- Aperture += Node->Length;
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // At last, adjust the aperture with the bridge's
- // alignment
- //
- offset = Aperture & (Bridge->Alignment);
-
- if (offset) {
- Aperture = Aperture + (Bridge->Alignment + 1) - offset;
- }
-
- Bridge->Length = Aperture;
- //
- // At last, adjust the bridge's alignment to the first child's alignment
- // if the bridge has at least one child
- //
- CurrentLink = Bridge->ChildList.ForwardLink;
- if (CurrentLink != &Bridge->ChildList) {
- Node = RESOURCE_NODE_FROM_LINK (CurrentLink);
- if (Node->Alignment > Bridge->Alignment) {
- Bridge->Alignment = Node->Alignment;
- }
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-CalculateResourceAperture (
- IN PCI_RESOURCE_NODE *Bridge
- )
-/*++
-
-Routine Description:
-
- This function is used to calculate the resource aperture
- for a given bridge device
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- UINT64 Aperture;
- LIST_ENTRY *CurrentLink;
- PCI_RESOURCE_NODE *Node;
-
- UINT64 offset;
-
- Aperture = 0;
-
- if (!Bridge) {
- return EFI_SUCCESS;
- }
-
- if (Bridge->ResType == PciBarTypeIo16) {
- return CalculateApertureIo16 (Bridge);
- }
-
- CurrentLink = Bridge->ChildList.ForwardLink;
-
- //
- // Assume the bridge is aligned
- //
- while (CurrentLink != &Bridge->ChildList) {
-
- Node = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- //
- // Apply padding resource if available
- //
-
- offset = Aperture & (Node->Alignment);
-
- if (offset) {
-
- Aperture = Aperture + (Node->Alignment + 1) - offset;
-
- }
-
- //
- // Recode current aperture as a offset
- // this offset will be used in future real allocation
- //
- Node->Offset = Aperture;
-
- //
- // Increment aperture by the length of node
- //
- Aperture += Node->Length;
-
- //
- // Consider the aperture alignment
- //
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // At last, adjust the aperture with the bridge's
- // alignment
- //
- offset = Aperture & (Bridge->Alignment);
- if (offset) {
- Aperture = Aperture + (Bridge->Alignment + 1) - offset;
- }
-
- //
- // If the bridge has already padded the resource and the
- // amount of padded resource is larger, then keep the
- // padded resource
- //
- if (Bridge->Length < Aperture) {
- Bridge->Length = Aperture;
- }
-
- //
- // At last, adjust the bridge's alignment to the first child's alignment
- // if the bridge has at least one child
- //
- CurrentLink = Bridge->ChildList.ForwardLink;
- if (CurrentLink != &Bridge->ChildList) {
- Node = RESOURCE_NODE_FROM_LINK (CurrentLink);
- if (Node->Alignment > Bridge->Alignment) {
- Bridge->Alignment = Node->Alignment;
- }
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-GetResourceFromDevice (
- PCI_IO_DEVICE *PciDev,
- PCI_RESOURCE_NODE *IoNode,
- PCI_RESOURCE_NODE *Mem32Node,
- PCI_RESOURCE_NODE *PMem32Node,
- PCI_RESOURCE_NODE *Mem64Node,
- PCI_RESOURCE_NODE *PMem64Node
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciDev - add argument and description to function comment
-// TODO: IoNode - add argument and description to function comment
-// TODO: Mem32Node - add argument and description to function comment
-// TODO: PMem32Node - add argument and description to function comment
-// TODO: Mem64Node - add argument and description to function comment
-// TODO: PMem64Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- UINT8 Index;
- PCI_RESOURCE_NODE *Node;
- BOOLEAN ResourceRequested;
-
- Node = NULL;
- ResourceRequested = FALSE;
-
- for (Index = 0; Index < PCI_MAX_BAR; Index++) {
-
- switch ((PciDev->PciBar)[Index].BarType) {
-
- case PciBarTypeMem32:
-
- Node = CreateResourceNode (
- PciDev,
- (PciDev->PciBar)[Index].Length,
- (PciDev->PciBar)[Index].Alignment,
- Index,
- PciBarTypeMem32,
- PciResUsageTypical
- );
-
- InsertResourceNode (
- Mem32Node,
- Node
- );
-
- ResourceRequested = TRUE;
- break;
-
- case PciBarTypeMem64:
-
- Node = CreateResourceNode (
- PciDev,
- (PciDev->PciBar)[Index].Length,
- (PciDev->PciBar)[Index].Alignment,
- Index,
- PciBarTypeMem64,
- PciResUsageTypical
- );
-
- InsertResourceNode (
- Mem64Node,
- Node
- );
-
- ResourceRequested = TRUE;
- break;
-
- case PciBarTypePMem64:
-
- Node = CreateResourceNode (
- PciDev,
- (PciDev->PciBar)[Index].Length,
- (PciDev->PciBar)[Index].Alignment,
- Index,
- PciBarTypePMem64,
- PciResUsageTypical
- );
-
- InsertResourceNode (
- PMem64Node,
- Node
- );
-
- ResourceRequested = TRUE;
- break;
-
- case PciBarTypePMem32:
-
- Node = CreateResourceNode (
- PciDev,
- (PciDev->PciBar)[Index].Length,
- (PciDev->PciBar)[Index].Alignment,
- Index,
- PciBarTypePMem32,
- PciResUsageTypical
- );
-
- InsertResourceNode (
- PMem32Node,
- Node
- );
- ResourceRequested = TRUE;
- break;
-
- case PciBarTypeIo16:
- case PciBarTypeIo32:
-
- Node = CreateResourceNode (
- PciDev,
- (PciDev->PciBar)[Index].Length,
- (PciDev->PciBar)[Index].Alignment,
- Index,
- PciBarTypeIo16,
- PciResUsageTypical
- );
-
- InsertResourceNode (
- IoNode,
- Node
- );
- ResourceRequested = TRUE;
- break;
-
- case PciBarTypeUnknown:
- break;
-
- default:
- break;
- }
- }
-
- //
- // If there is no resource requested from this device,
- // then we indicate this device has been allocated naturally.
- //
- if (!ResourceRequested) {
- PciDev->Allocated = TRUE;
- }
-
- return EFI_SUCCESS;
-}
-
-PCI_RESOURCE_NODE *
-CreateResourceNode (
- IN PCI_IO_DEVICE *PciDev,
- IN UINT64 Length,
- IN UINT64 Alignment,
- IN UINT8 Bar,
- IN PCI_BAR_TYPE ResType,
- IN PCI_RESOURCE_USAGE ResUsage
- )
-/*++
-
-Routine Description:
-
- This function is used to create a resource node
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciDev - add argument and description to function comment
-// TODO: Length - add argument and description to function comment
-// TODO: Alignment - add argument and description to function comment
-// TODO: Bar - add argument and description to function comment
-// TODO: ResType - add argument and description to function comment
-// TODO: ResUsage - add argument and description to function comment
-{
- PCI_RESOURCE_NODE *Node;
-
- Node = NULL;
-
- Node = AllocatePool (sizeof (PCI_RESOURCE_NODE));
- if (Node == NULL) {
- return NULL;
- }
-
- ZeroMem (Node, sizeof (PCI_RESOURCE_NODE));
-
- Node->Signature = PCI_RESOURCE_SIGNATURE;
- Node->PciDev = PciDev;
- Node->Length = Length;
- Node->Alignment = Alignment;
- Node->Bar = Bar;
- Node->ResType = ResType;
- Node->Reserved = FALSE;
- Node->ResourceUsage = ResUsage;
- InitializeListHead (&Node->ChildList);
- return Node;
-}
-
-EFI_STATUS
-CreateResourceMap (
- IN PCI_IO_DEVICE *Bridge,
- IN PCI_RESOURCE_NODE *IoNode,
- IN PCI_RESOURCE_NODE *Mem32Node,
- IN PCI_RESOURCE_NODE *PMem32Node,
- IN PCI_RESOURCE_NODE *Mem64Node,
- IN PCI_RESOURCE_NODE *PMem64Node
- )
-/*++
-
-Routine Description:
-
- This routine is used to extract resource request from
- device node list.
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: IoNode - add argument and description to function comment
-// TODO: Mem32Node - add argument and description to function comment
-// TODO: PMem32Node - add argument and description to function comment
-// TODO: Mem64Node - add argument and description to function comment
-// TODO: PMem64Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_IO_DEVICE *Temp;
- PCI_RESOURCE_NODE *IoBridge;
- PCI_RESOURCE_NODE *Mem32Bridge;
- PCI_RESOURCE_NODE *PMem32Bridge;
- PCI_RESOURCE_NODE *Mem64Bridge;
- PCI_RESOURCE_NODE *PMem64Bridge;
- LIST_ENTRY *CurrentLink;
-
- CurrentLink = Bridge->ChildList.ForwardLink;
-
- while (CurrentLink && CurrentLink != &Bridge->ChildList) {
-
- Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink);
-
- //
- // Create resource nodes for this device by scanning the
- // Bar array in the device private data
- // If the upstream bridge doesn't support this device,
- // no any resource node will be created for this device
- //
- GetResourceFromDevice (
- Temp,
- IoNode,
- Mem32Node,
- PMem32Node,
- Mem64Node,
- PMem64Node
- );
-
- if (IS_PCI_BRIDGE (&Temp->Pci)) {
-
- //
- // If the device has children, create a bridge resource node for this PPB
- // Note: For PPB, memory aperture is aligned with 1MB and IO aperture
- // is aligned with 4KB
- // This device is typically a bridge device like PPB and P2C
- //
- IoBridge = CreateResourceNode (
- Temp,
- 0,
- 0xFFF,
- PPB_IO_RANGE,
- PciBarTypeIo16,
- PciResUsageTypical
- ); //0x1000 aligned
-
- Mem32Bridge = CreateResourceNode (
- Temp,
- 0,
- 0xFFFFF,
- PPB_MEM32_RANGE,
- PciBarTypeMem32,
- PciResUsageTypical
- );
-
- PMem32Bridge = CreateResourceNode (
- Temp,
- 0,
- 0xFFFFF,
- PPB_PMEM32_RANGE,
- PciBarTypePMem32,
- PciResUsageTypical
- );
-
- Mem64Bridge = CreateResourceNode (
- Temp,
- 0,
- 0xFFFFF,
- PPB_MEM64_RANGE,
- PciBarTypeMem64,
- PciResUsageTypical
- );
-
- PMem64Bridge = CreateResourceNode (
- Temp,
- 0,
- 0xFFFFF,
- PPB_PMEM64_RANGE,
- PciBarTypePMem64,
- PciResUsageTypical
- );
-
- //
- // Recursively create resouce map on this bridge
- //
- CreateResourceMap (
- Temp,
- IoBridge,
- Mem32Bridge,
- PMem32Bridge,
- Mem64Bridge,
- PMem64Bridge
- );
-
- if (ResourceRequestExisted (IoBridge)) {
- InsertResourceNode (
- IoNode,
- IoBridge
- );
- } else {
- gBS->FreePool (IoBridge);
- IoBridge = NULL;
- }
-
- //
- // If there is node under this resource bridge,
- // then calculate bridge's aperture of this type
- // and insert it into the respective resource tree.
- // If no, delete this resource bridge
- //
- if (ResourceRequestExisted (Mem32Bridge)) {
- InsertResourceNode (
- Mem32Node,
- Mem32Bridge
- );
- } else {
- gBS->FreePool (Mem32Bridge);
- Mem32Bridge = NULL;
- }
-
- //
- // If there is node under this resource bridge,
- // then calculate bridge's aperture of this type
- // and insert it into the respective resource tree.
- // If no, delete this resource bridge
- //
- if (ResourceRequestExisted (PMem32Bridge)) {
- InsertResourceNode (
- PMem32Node,
- PMem32Bridge
- );
- } else {
- gBS->FreePool (PMem32Bridge);
- PMem32Bridge = NULL;
- }
-
- //
- // If there is node under this resource bridge,
- // then calculate bridge's aperture of this type
- // and insert it into the respective resource tree.
- // If no, delete this resource bridge
- //
- if (ResourceRequestExisted (Mem64Bridge)) {
- InsertResourceNode (
- Mem64Node,
- Mem64Bridge
- );
- } else {
- gBS->FreePool (Mem64Bridge);
- Mem64Bridge = NULL;
- }
-
- //
- // If there is node under this resource bridge,
- // then calculate bridge's aperture of this type
- // and insert it into the respective resource tree.
- // If no, delete this resource bridge
- //
- if (ResourceRequestExisted (PMem64Bridge)) {
- InsertResourceNode (
- PMem64Node,
- PMem64Bridge
- );
- } else {
- gBS->FreePool (PMem64Bridge);
- PMem64Bridge = NULL;
- }
-
- }
-
- //
- // If it is P2C, apply hard coded resource padding
- //
- //
- if (IS_CARDBUS_BRIDGE (&Temp->Pci)) {
- ResourcePaddingForCardBusBridge (
- Temp,
- IoNode,
- Mem32Node,
- PMem32Node,
- Mem64Node,
- PMem64Node
- );
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
- //
- //
- // To do some platform specific resource padding ...
- //
- ResourcePaddingPolicy (
- Bridge,
- IoNode,
- Mem32Node,
- PMem32Node,
- Mem64Node,
- PMem64Node
- );
-
- //
- // Degrade resource if necessary
- //
- DegradeResource (
- Bridge,
- Mem32Node,
- PMem32Node,
- Mem64Node,
- PMem64Node
- );
-
- //
- // Calculate resource aperture for this bridge device
- //
- CalculateResourceAperture (Mem32Node);
- CalculateResourceAperture (PMem32Node);
- CalculateResourceAperture (Mem64Node);
- CalculateResourceAperture (PMem64Node);
- CalculateResourceAperture (IoNode);
-
- return EFI_SUCCESS;
-
-}
-
-EFI_STATUS
-ResourcePaddingPolicy (
- PCI_IO_DEVICE *PciDev,
- PCI_RESOURCE_NODE *IoNode,
- PCI_RESOURCE_NODE *Mem32Node,
- PCI_RESOURCE_NODE *PMem32Node,
- PCI_RESOURCE_NODE *Mem64Node,
- PCI_RESOURCE_NODE *PMem64Node
- )
-/*++
-
-Routine Description:
-
- This function is used to do the resource padding for a specific platform
-
-Arguments:
-
- PciDev - A pointer to the PCI_IO_DEVICE structrue.
- IoNode - A pointer to the PCI_RESOURCE_NODE structrue.
- Mem32Node - A pointer to the PCI_RESOURCE_NODE structrue.
- PMem32Node - A pointer to the PCI_RESOURCE_NODE structrue.
- Mem64Node - A pointer to the PCI_RESOURCE_NODE structrue.
- PMem64Node - A pointer to the PCI_RESOURCE_NODE structrue.
-
-Returns:
- Status code
-
- None
-
---*/
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- //
- // Create padding resource node
- //
- if (PciDev->ResourcePaddingDescriptors != NULL) {
- ApplyResourcePadding (
- PciDev,
- IoNode,
- Mem32Node,
- PMem32Node,
- Mem64Node,
- PMem64Node
- );
- }
-
- return EFI_SUCCESS;
-
-}
-
-EFI_STATUS
-DegradeResource (
- IN PCI_IO_DEVICE *Bridge,
- IN PCI_RESOURCE_NODE *Mem32Node,
- IN PCI_RESOURCE_NODE *PMem32Node,
- IN PCI_RESOURCE_NODE *Mem64Node,
- IN PCI_RESOURCE_NODE *PMem64Node
- )
-/*++
-
-Routine Description:
-
- This function is used to degrade resource if the upstream bridge
- doesn't support certain resource. Degradation path is
- PMEM64 -> MEM64 -> MEM32
- PMEM64 -> PMEM32 -> MEM32
- IO32 -> IO16
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: Mem32Node - add argument and description to function comment
-// TODO: PMem32Node - add argument and description to function comment
-// TODO: Mem64Node - add argument and description to function comment
-// TODO: PMem64Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- //
- // If bridge doesn't support Prefetchable
- // memory64, degrade it to Prefetchable memory32
- //
- if (!BridgeSupportResourceDecode (Bridge, EFI_BRIDGE_PMEM64_DECODE_SUPPORTED)) {
- MergeResourceTree (
- PMem32Node,
- PMem64Node,
- TRUE
- );
- } else {
- //
- // if no PMem32 request, still keep PMem64. Otherwise degrade to PMem32
- //
- if (PMem32Node != NULL) {
- MergeResourceTree (
- PMem32Node,
- PMem64Node,
- TRUE
- );
- }
- }
-
-
- //
- // If bridge doesn't support Mem64
- // degrade it to mem32
- //
- if (!BridgeSupportResourceDecode (Bridge, EFI_BRIDGE_MEM64_DECODE_SUPPORTED)) {
- MergeResourceTree (
- Mem32Node,
- Mem64Node,
- TRUE
- );
- }
-
- //
- // If bridge doesn't support Pmem32
- // degrade it to mem32
- //
- if (!BridgeSupportResourceDecode (Bridge, EFI_BRIDGE_PMEM32_DECODE_SUPPORTED)) {
- MergeResourceTree (
- Mem32Node,
- PMem32Node,
- TRUE
- );
- }
-
- //
- // if bridge supports combined Pmem Mem decoding
- // merge these two type of resource
- //
- if (BridgeSupportResourceDecode (Bridge, EFI_BRIDGE_PMEM_MEM_COMBINE_SUPPORTED)) {
- MergeResourceTree (
- Mem32Node,
- PMem32Node,
- FALSE
- );
-
- MergeResourceTree (
- Mem64Node,
- PMem64Node,
- FALSE
- );
- }
-
- return EFI_SUCCESS;
-}
-
-BOOLEAN
-BridgeSupportResourceDecode (
- IN PCI_IO_DEVICE *Bridge,
- IN UINT32 Decode
- )
-/*++
-
-Routine Description:
-
- TODO: Add function description
-
-Arguments:
-
- Bridge - TODO: add argument description
- Decode - TODO: add argument description
-
-Returns:
-
- TODO: add return values
-
---*/
-{
- /*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
- if ((Bridge->Decodes) & Decode) {
- return TRUE;
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-ProgramResource (
- IN UINT64 Base,
- IN PCI_RESOURCE_NODE *Bridge
- )
-/*++
-
-Routine Description:
-
- This function is used to program the resource allocated
- for each resource node
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Base - add argument and description to function comment
-// TODO: Bridge - add argument and description to function comment
-// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- LIST_ENTRY *CurrentLink;
- PCI_RESOURCE_NODE *Node;
- EFI_STATUS Status;
-
- if (Base == gAllOne) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- CurrentLink = Bridge->ChildList.ForwardLink;
-
- while (CurrentLink != &Bridge->ChildList) {
-
- Node = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (!IS_PCI_BRIDGE (&(Node->PciDev->Pci))) {
-
- if (IS_CARDBUS_BRIDGE (&(Node->PciDev->Pci))) {
- ProgramP2C (Base, Node);
- } else {
- ProgramBar (Base, Node);
- }
- } else {
- Status = ProgramResource (Base + Node->Offset, Node);
-
- if (EFI_ERROR (Status)) {
- return Status;
- }
-
- ProgramPpbApperture (Base, Node);
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ProgramBar (
- IN UINT64 Base,
- IN PCI_RESOURCE_NODE *Node
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Base - add argument and description to function comment
-// TODO: Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT64 Address;
- UINT32 Address32;
-
- Address = 0;
- PciIo = &(Node->PciDev->PciIo);
-
- Address = Base + Node->Offset;
-
- //
- // Indicate pci bus driver has allocated
- // resource for this device
- // It might be a temporary solution here since
- // pci device could have multiple bar
- //
- Node->PciDev->Allocated = TRUE;
-
- switch ((Node->PciDev->PciBar[Node->Bar]).BarType) {
-
- case PciBarTypeIo16:
- case PciBarTypeIo32:
- case PciBarTypeMem32:
- case PciBarTypePMem32:
-
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- (Node->PciDev->PciBar[Node->Bar]).Offset,
- 1,
- &Address
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
-
- break;
-
- case PciBarTypeMem64:
- case PciBarTypePMem64:
-
- Address32 = (UINT32) (Address & 0x00000000FFFFFFFF);
-
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- (Node->PciDev->PciBar[Node->Bar]).Offset,
- 1,
- &Address32
- );
-
- Address32 = (UINT32) RShiftU64 (Address, 32);
-
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- (UINT8) ((Node->PciDev->PciBar[Node->Bar]).Offset + 4),
- 1,
- &Address32
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
-
- break;
-
- default:
- break;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ProgramPpbApperture (
- IN UINT64 Base,
- IN PCI_RESOURCE_NODE *Node
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Base - add argument and description to function comment
-// TODO: Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT64 Address;
- UINT32 Address32;
-
- Address = 0;
- //
- // if no device south of this PPB, return anyway
- // Apperture is set default in the initialization code
- //
- if (Node->Length == 0 || Node->ResourceUsage == PciResUsagePadding) {
- //
- // For padding resource node, just ignore when programming
- //
- return EFI_SUCCESS;
- }
-
- PciIo = &(Node->PciDev->PciIo);
- Address = Base + Node->Offset;
-
- //
- // Indicate the PPB resource has been allocated
- //
- Node->PciDev->Allocated = TRUE;
-
- switch (Node->Bar) {
-
- case PPB_BAR_0:
- case PPB_BAR_1:
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- (Node->PciDev->PciBar[Node->Bar]).Offset,
- 1,
- &Address
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
-
- break;
-
- case PPB_IO_RANGE:
-
- Address32 = ((UINT32) (Address)) >> 8;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint8,
- 0x1C,
- 1,
- &Address32
- );
-
- Address32 >>= 8;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x30,
- 1,
- &Address32
- );
-
- Address32 = (UINT32) (Address + Node->Length - 1);
- Address32 = ((UINT32) (Address32)) >> 8;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint8,
- 0x1D,
- 1,
- &Address32
- );
-
- Address32 >>= 8;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x32,
- 1,
- &Address32
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- break;
-
- case PPB_MEM32_RANGE:
-
- Address32 = ((UINT32) (Address)) >> 16;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x20,
- 1,
- &Address32
- );
-
- Address32 = (UINT32) (Address + Node->Length - 1);
- Address32 = ((UINT32) (Address32)) >> 16;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x22,
- 1,
- &Address32
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- break;
-
- case PPB_PMEM32_RANGE:
- case PPB_PMEM64_RANGE:
-
- Address32 = ((UINT32) (Address)) >> 16;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x24,
- 1,
- &Address32
- );
-
- Address32 = (UINT32) (Address + Node->Length - 1);
- Address32 = ((UINT32) (Address32)) >> 16;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x26,
- 1,
- &Address32
- );
-
- Address32 = (UINT32) RShiftU64 (Address, 32);
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x28,
- 1,
- &Address32
- );
-
- Address32 = (UINT32) RShiftU64 ((Address + Node->Length - 1), 32);
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x2C,
- 1,
- &Address32
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- break;
-
- default:
- break;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ProgrameUpstreamBridgeForRom (
- IN PCI_IO_DEVICE *PciDevice,
- IN UINT32 OptionRomBase,
- IN BOOLEAN Enable
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
---*/
-// TODO: PciDevice - add argument and description to function comment
-// TODO: OptionRomBase - add argument and description to function comment
-// TODO: Enable - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_IO_DEVICE *Parent;
- PCI_RESOURCE_NODE Node;
- //
- // For root bridge, just return.
- //
- Parent = PciDevice->Parent;
- ZeroMem (&Node, sizeof (Node));
- while (Parent) {
- if (!IS_PCI_BRIDGE (&Parent->Pci)) {
- break;
- }
-
- Node.PciDev = Parent;
- Node.Length = PciDevice->RomSize;
- Node.Alignment = 0;
- Node.Bar = PPB_MEM32_RANGE;
- Node.ResType = PciBarTypeMem32;
- Node.Offset = 0;
-
- //
- // Program PPB to only open a single <= 16<MB apperture
- //
- if (Enable) {
- ProgramPpbApperture (OptionRomBase, &Node);
- PciEnableCommandRegister (Parent, EFI_PCI_COMMAND_MEMORY_SPACE);
- } else {
- InitializePpb (Parent);
- PciDisableCommandRegister (Parent, EFI_PCI_COMMAND_MEMORY_SPACE);
- }
-
- Parent = Parent->Parent;
- }
-
- return EFI_SUCCESS;
-}
-
-BOOLEAN
-ResourceRequestExisted (
- IN PCI_RESOURCE_NODE *Bridge
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
- Bridge - A pointer to the PCI_RESOURCE_NODE.
-
-Returns:
-
- None
-
---*/
-{
- if (Bridge != NULL) {
- if (!IsListEmpty (&Bridge->ChildList) || Bridge->Length != 0) {
- return TRUE;
- }
- }
-
- return FALSE;
-}
-
-EFI_STATUS
-InitializeResourcePool (
- PCI_RESOURCE_NODE *ResourcePool,
- PCI_BAR_TYPE ResourceType
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: ResourcePool - add argument and description to function comment
-// TODO: ResourceType - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- ZeroMem (ResourcePool, sizeof (PCI_RESOURCE_NODE));
- ResourcePool->ResType = ResourceType;
- ResourcePool->Signature = PCI_RESOURCE_SIGNATURE;
- InitializeListHead (&ResourcePool->ChildList);
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-GetResourceMap (
- PCI_IO_DEVICE *PciDev,
- PCI_RESOURCE_NODE **IoBridge,
- PCI_RESOURCE_NODE **Mem32Bridge,
- PCI_RESOURCE_NODE **PMem32Bridge,
- PCI_RESOURCE_NODE **Mem64Bridge,
- PCI_RESOURCE_NODE **PMem64Bridge,
- PCI_RESOURCE_NODE *IoPool,
- PCI_RESOURCE_NODE *Mem32Pool,
- PCI_RESOURCE_NODE *PMem32Pool,
- PCI_RESOURCE_NODE *Mem64Pool,
- PCI_RESOURCE_NODE *PMem64Pool
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciDev - add argument and description to function comment
-// TODO: IoBridge - add argument and description to function comment
-// TODO: Mem32Bridge - add argument and description to function comment
-// TODO: PMem32Bridge - add argument and description to function comment
-// TODO: Mem64Bridge - add argument and description to function comment
-// TODO: PMem64Bridge - add argument and description to function comment
-// TODO: IoPool - add argument and description to function comment
-// TODO: Mem32Pool - add argument and description to function comment
-// TODO: PMem32Pool - add argument and description to function comment
-// TODO: Mem64Pool - add argument and description to function comment
-// TODO: PMem64Pool - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
-
- PCI_RESOURCE_NODE *Temp;
- LIST_ENTRY *CurrentLink;
-
- CurrentLink = IoPool->ChildList.ForwardLink;
-
- //
- // Get Io resource map
- //
- while (CurrentLink != &IoPool->ChildList) {
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (Temp->PciDev == PciDev) {
- *IoBridge = Temp;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // Get Mem32 resource map
- //
- CurrentLink = Mem32Pool->ChildList.ForwardLink;
-
- while (CurrentLink != &Mem32Pool->ChildList) {
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (Temp->PciDev == PciDev) {
- *Mem32Bridge = Temp;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // Get Pmem32 resource map
- //
- CurrentLink = PMem32Pool->ChildList.ForwardLink;
-
- while (CurrentLink != &PMem32Pool->ChildList) {
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (Temp->PciDev == PciDev) {
- *PMem32Bridge = Temp;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // Get Mem64 resource map
- //
- CurrentLink = Mem64Pool->ChildList.ForwardLink;
-
- while (CurrentLink != &Mem64Pool->ChildList) {
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (Temp->PciDev == PciDev) {
- *Mem64Bridge = Temp;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- //
- // Get Pmem64 resource map
- //
- CurrentLink = PMem64Pool->ChildList.ForwardLink;
-
- while (CurrentLink != &PMem64Pool->ChildList) {
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- if (Temp->PciDev == PciDev) {
- *PMem64Bridge = Temp;
- }
-
- CurrentLink = CurrentLink->ForwardLink;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-DestroyResourceTree (
- IN PCI_RESOURCE_NODE *Bridge
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Bridge - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_RESOURCE_NODE *Temp;
- LIST_ENTRY *CurrentLink;
-
- while (!IsListEmpty (&Bridge->ChildList)) {
-
- CurrentLink = Bridge->ChildList.ForwardLink;
-
- Temp = RESOURCE_NODE_FROM_LINK (CurrentLink);
-
- RemoveEntryList (CurrentLink);
-
- if (IS_PCI_BRIDGE (&(Temp->PciDev->Pci))) {
- DestroyResourceTree (Temp);
- }
-
- gBS->FreePool (Temp);
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-RecordReservedResource (
- IN UINT64 Base,
- IN UINT64 Length,
- IN PCI_BAR_TYPE ResType,
- IN PCI_IO_DEVICE *Bridge
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Base - add argument and description to function comment
-// TODO: Length - add argument and description to function comment
-// TODO: ResType - add argument and description to function comment
-// TODO: Bridge - add argument and description to function comment
-// TODO: EFI_OUT_OF_RESOURCES - add return value to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_RESERVED_RESOURCE_LIST *ReservedNode;
-
- ReservedNode = AllocatePool (sizeof (PCI_RESERVED_RESOURCE_LIST));
- if (ReservedNode == NULL) {
- return EFI_OUT_OF_RESOURCES;
- }
-
- ReservedNode->Signature = RESERVED_RESOURCE_SIGNATURE;
- ReservedNode->Node.Base = Base;
- ReservedNode->Node.Length = Length;
- ReservedNode->Node.ResType = ResType;
-
- InsertTailList (&Bridge->ReservedResourceList, &(ReservedNode->Link));
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ResourcePaddingForCardBusBridge (
- PCI_IO_DEVICE *PciDev,
- PCI_RESOURCE_NODE *IoNode,
- PCI_RESOURCE_NODE *Mem32Node,
- PCI_RESOURCE_NODE *PMem32Node,
- PCI_RESOURCE_NODE *Mem64Node,
- PCI_RESOURCE_NODE *PMem64Node
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciDev - add argument and description to function comment
-// TODO: IoNode - add argument and description to function comment
-// TODO: Mem32Node - add argument and description to function comment
-// TODO: PMem32Node - add argument and description to function comment
-// TODO: Mem64Node - add argument and description to function comment
-// TODO: PMem64Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- PCI_RESOURCE_NODE *Node;
-
- Node = NULL;
-
- //
- // Memory Base/Limit Register 0
- // Bar 1 denodes memory range 0
- //
- Node = CreateResourceNode (
- PciDev,
- 0x2000000,
- 0x1ffffff,
- 1,
- PciBarTypeMem32,
- PciResUsagePadding
- );
-
- InsertResourceNode (
- Mem32Node,
- Node
- );
-
- //
- // Memory Base/Limit Register 1
- // Bar 2 denodes memory range1
- //
- Node = CreateResourceNode (
- PciDev,
- 0x2000000,
- 0x1ffffff,
- 2,
- PciBarTypePMem32,
- PciResUsagePadding
- );
-
- InsertResourceNode (
- PMem32Node,
- Node
- );
-
- //
- // Io Base/Limit
- // Bar 3 denodes io range 0
- //
- Node = CreateResourceNode (
- PciDev,
- 0x100,
- 0xff,
- 3,
- PciBarTypeIo16,
- PciResUsagePadding
- );
-
- InsertResourceNode (
- IoNode,
- Node
- );
-
- //
- // Io Base/Limit
- // Bar 4 denodes io range 0
- //
- Node = CreateResourceNode (
- PciDev,
- 0x100,
- 0xff,
- 4,
- PciBarTypeIo16,
- PciResUsagePadding
- );
-
- InsertResourceNode (
- IoNode,
- Node
- );
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ProgramP2C (
- IN UINT64 Base,
- IN PCI_RESOURCE_NODE *Node
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: Base - add argument and description to function comment
-// TODO: Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT64 Address;
- UINT64 TempAddress;
- UINT16 BridgeControl;
-
- Address = 0;
- PciIo = &(Node->PciDev->PciIo);
-
- Address = Base + Node->Offset;
-
- //
- // Indicate pci bus driver has allocated
- // resource for this device
- // It might be a temporary solution here since
- // pci device could have multiple bar
- //
- Node->PciDev->Allocated = TRUE;
-
- switch (Node->Bar) {
-
- case P2C_BAR_0:
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- (Node->PciDev->PciBar[Node->Bar]).Offset,
- 1,
- &Address
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- break;
-
- case P2C_MEM_1:
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x1c,
- 1,
- &Address
- );
-
- TempAddress = Address + Node->Length - 1;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x20,
- 1,
- &TempAddress
- );
-
- if (Node->ResType == PciBarTypeMem32) {
-
- //
- // Set non-prefetchable bit
- //
- PciIoRead (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
-
- BridgeControl &= 0xfeff;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
-
- } else {
-
- //
- // Set pre-fetchable bit
- //
- PciIoRead (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
-
- BridgeControl |= 0x0100;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
- }
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- Node->PciDev->PciBar[Node->Bar].BarType = Node->ResType;
-
- break;
-
- case P2C_MEM_2:
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x24,
- 1,
- &Address
- );
-
- TempAddress = Address + Node->Length - 1;
-
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x28,
- 1,
- &TempAddress
- );
-
- if (Node->ResType == PciBarTypeMem32) {
-
- //
- // Set non-prefetchable bit
- //
- PciIoRead (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
-
- BridgeControl &= 0xfdff;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
- } else {
-
- //
- // Set pre-fetchable bit
- //
- PciIoRead (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
-
- BridgeControl |= 0x0200;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint16,
- 0x3e,
- 1,
- &BridgeControl
- );
- }
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- Node->PciDev->PciBar[Node->Bar].BarType = Node->ResType;
- break;
-
- case P2C_IO_1:
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x2c,
- 1,
- &Address
- );
- TempAddress = Address + Node->Length - 1;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x30,
- 1,
- &TempAddress
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- Node->PciDev->PciBar[Node->Bar].BarType = Node->ResType;
-
- break;
-
- case P2C_IO_2:
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x34,
- 1,
- &Address
- );
-
- TempAddress = Address + Node->Length - 1;
- PciIoWrite (
- PciIo,
- EfiPciIoWidthUint32,
- 0x38,
- 1,
- &TempAddress
- );
-
- Node->PciDev->PciBar[Node->Bar].BaseAddress = Address;
- Node->PciDev->PciBar[Node->Bar].Length = Node->Length;
- Node->PciDev->PciBar[Node->Bar].BarType = Node->ResType;
- break;
-
- default:
- break;
- }
-
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-ApplyResourcePadding (
- PCI_IO_DEVICE *PciDev,
- PCI_RESOURCE_NODE *IoNode,
- PCI_RESOURCE_NODE *Mem32Node,
- PCI_RESOURCE_NODE *PMem32Node,
- PCI_RESOURCE_NODE *Mem64Node,
- PCI_RESOURCE_NODE *PMem64Node
- )
-/*++
-
-Routine Description:
-
-Arguments:
-
-Returns:
-
- None
-
---*/
-// TODO: PciDev - add argument and description to function comment
-// TODO: IoNode - add argument and description to function comment
-// TODO: Mem32Node - add argument and description to function comment
-// TODO: PMem32Node - add argument and description to function comment
-// TODO: Mem64Node - add argument and description to function comment
-// TODO: PMem64Node - add argument and description to function comment
-// TODO: EFI_SUCCESS - add return value to function comment
-{
- EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Ptr;
- PCI_RESOURCE_NODE *Node;
- UINT8 DummyBarIndex;
-
- DummyBarIndex = 0;
- Ptr = PciDev->ResourcePaddingDescriptors;
-
- while (((EFI_ACPI_END_TAG_DESCRIPTOR *) Ptr)->Desc != ACPI_END_TAG_DESCRIPTOR) {
-
- if (Ptr->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR && Ptr->ResType == ACPI_ADDRESS_SPACE_TYPE_IO) {
- if (Ptr->AddrLen != 0) {
-
- Node = CreateResourceNode (
- PciDev,
- Ptr->AddrLen,
- Ptr->AddrRangeMax,
- DummyBarIndex,
- PciBarTypeIo16,
- PciResUsagePadding
- );
- InsertResourceNode (
- IoNode,
- Node
- );
- }
-
- Ptr++;
- continue;
- }
-
- if (Ptr->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR && Ptr->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
-
- if (Ptr->AddrSpaceGranularity == 32) {
-
- //
- // prefechable
- //
- if (Ptr->SpecificFlag == 0x6) {
- if (Ptr->AddrLen) {
- Node = CreateResourceNode (
- PciDev,
- Ptr->AddrLen,
- Ptr->AddrRangeMax,
- DummyBarIndex,
- PciBarTypePMem32,
- PciResUsagePadding
- );
- InsertResourceNode (
- PMem32Node,
- Node
- );
- }
-
- Ptr++;
- continue;
- }
-
- //
- // Non-prefechable
- //
- if (Ptr->SpecificFlag == 0) {
- if (Ptr->AddrLen) {
- Node = CreateResourceNode (
- PciDev,
- Ptr->AddrLen,
- Ptr->AddrRangeMax,
- DummyBarIndex,
- PciBarTypeMem32,
- PciResUsagePadding
- );
- InsertResourceNode (
- Mem32Node,
- Node
- );
- }
-
- Ptr++;
- continue;
- }
- }
-
- if (Ptr->AddrSpaceGranularity == 64) {
-
- //
- // prefechable
- //
- if (Ptr->SpecificFlag == 0x6) {
- if (Ptr->AddrLen) {
- Node = CreateResourceNode (
- PciDev,
- Ptr->AddrLen,
- Ptr->AddrRangeMax,
- DummyBarIndex,
- PciBarTypePMem64,
- PciResUsagePadding
- );
- InsertResourceNode (
- PMem64Node,
- Node
- );
- }
-
- Ptr++;
- continue;
- }
-
- //
- // Non-prefechable
- //
- if (Ptr->SpecificFlag == 0) {
- if (Ptr->AddrLen) {
- Node = CreateResourceNode (
- PciDev,
- Ptr->AddrLen,
- Ptr->AddrRangeMax,
- DummyBarIndex,
- PciBarTypeMem64,
- PciResUsagePadding
- );
- InsertResourceNode (
- Mem64Node,
- Node
- );
- }
-
- Ptr++;
- continue;
- }
- }
- }
-
- Ptr++;
- }
-
- return EFI_SUCCESS;
-}
-
-//
-// Light PCI bus driver woundn't support hotplug root device
-// So no need to pad resource for them
-//
-VOID
-GetResourcePaddingPpb (
- IN PCI_IO_DEVICE *PciIoDevice
- )
-/*++
-
-Routine Description:
-
- Get resource.
-
-Arguments:
-
- PciIoDevice A pointer to a pci device.
-
-Returns:
-
- None
-
---*/
-{
- if (gPciHotPlugInit) {
- if (PciIoDevice->ResourcePaddingDescriptors == NULL) {
- GetResourcePaddingForHpb (PciIoDevice);
- }
- }
-}
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