2 PCI resouces support functions implemntation for PCI Bus module.
4 Copyright (c) 2006 - 2009, Intel Corporation
5 All rights reserved. This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
18 The function is used to skip VGA range.
20 @param Start Returned start address including VGA range.
21 @param Length The length of VGA range.
35 ASSERT (Start
!= NULL
);
37 // For legacy VGA, bit 10 to bit 15 is not decoded
42 StartOffset
= Original
& Mask
;
43 LimitOffset
= ((*Start
) + Length
- 1) & Mask
;
44 if (LimitOffset
>= VGABASE1
) {
45 *Start
= *Start
- StartOffset
+ VGALIMIT2
+ 1;
50 This function is used to skip ISA aliasing aperture.
52 @param Start Returned start address including ISA aliasing aperture.
53 @param Length The length of ISA aliasing aperture.
57 SkipIsaAliasAperture (
68 ASSERT (Start
!= NULL
);
71 // For legacy ISA, bit 10 to bit 15 is not decoded
76 StartOffset
= Original
& Mask
;
77 LimitOffset
= ((*Start
) + Length
- 1) & Mask
;
79 if (LimitOffset
>= ISABASE
) {
80 *Start
= *Start
- StartOffset
+ ISALIMIT
+ 1;
85 This function inserts a resource node into the resource list.
86 The resource list is sorted in descend order.
88 @param Bridge PCI resource node for bridge.
89 @param ResNode Resource node want to be inserted.
94 IN OUT PCI_RESOURCE_NODE
*Bridge
,
95 IN PCI_RESOURCE_NODE
*ResNode
98 LIST_ENTRY
*CurrentLink
;
99 PCI_RESOURCE_NODE
*Temp
;
100 UINT64 ResNodeAlignRest
;
101 UINT64 TempAlignRest
;
103 ASSERT (Bridge
!= NULL
);
104 ASSERT (ResNode
!= NULL
);
106 InsertHeadList (&Bridge
->ChildList
, &ResNode
->Link
);
108 CurrentLink
= Bridge
->ChildList
.ForwardLink
->ForwardLink
;
109 while (CurrentLink
!= &Bridge
->ChildList
) {
110 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
112 if (ResNode
->Alignment
> Temp
->Alignment
) {
114 } else if (ResNode
->Alignment
== Temp
->Alignment
) {
115 ResNodeAlignRest
= ResNode
->Length
& ResNode
->Alignment
;
116 TempAlignRest
= Temp
->Length
& Temp
->Alignment
;
117 if ((ResNodeAlignRest
== 0) || (ResNodeAlignRest
>= TempAlignRest
)) {
122 SwapListEntries (&ResNode
->Link
, CurrentLink
);
124 CurrentLink
= ResNode
->Link
.ForwardLink
;
129 This routine is used to merge two different resource trees in need of
132 For example, if an upstream PPB doesn't support,
133 prefetchable memory decoding, the PCI bus driver will choose to call this function
134 to merge prefectchable memory resource list into normal memory list.
136 If the TypeMerge is TRUE, Res resource type is changed to the type of destination resource
138 If Dst is NULL or Res is NULL, ASSERT ().
140 @param Dst Point to destination resource tree.
141 @param Res Point to source resource tree.
142 @param TypeMerge If the TypeMerge is TRUE, Res resource type is changed to the type of
143 destination resource type.
148 IN PCI_RESOURCE_NODE
*Dst
,
149 IN PCI_RESOURCE_NODE
*Res
,
154 LIST_ENTRY
*CurrentLink
;
155 PCI_RESOURCE_NODE
*Temp
;
157 ASSERT (Dst
!= NULL
);
158 ASSERT (Res
!= NULL
);
160 while (!IsListEmpty (&Res
->ChildList
)) {
161 CurrentLink
= Res
->ChildList
.ForwardLink
;
163 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
166 Temp
->ResType
= Dst
->ResType
;
169 RemoveEntryList (CurrentLink
);
170 InsertResourceNode (Dst
, Temp
);
175 This function is used to calculate the IO16 aperture
178 @param Bridge PCI resource node for bridge.
182 CalculateApertureIo16 (
183 IN PCI_RESOURCE_NODE
*Bridge
188 LIST_ENTRY
*CurrentLink
;
189 PCI_RESOURCE_NODE
*Node
;
193 EFI_PCI_PLATFORM_POLICY PciPolicy
;
196 // Always assume there is ISA device and VGA device on the platform
197 // will be customized later
203 // Check PciPlatform policy
205 if (gPciPlatformProtocol
!= NULL
) {
206 Status
= gPciPlatformProtocol
->GetPlatformPolicy (
207 gPciPlatformProtocol
,
210 if (!EFI_ERROR (Status
)) {
211 if ((PciPolicy
& EFI_RESERVE_ISA_IO_ALIAS
) != 0) {
214 if ((PciPolicy
& EFI_RESERVE_VGA_IO_ALIAS
) != 0) {
218 } else if (gPciOverrideProtocol
!= NULL
) {
219 Status
= gPciOverrideProtocol
->GetPlatformPolicy (
220 gPciOverrideProtocol
,
223 if (!EFI_ERROR (Status
)) {
224 if ((PciPolicy
& EFI_RESERVE_ISA_IO_ALIAS
) != 0) {
227 if ((PciPolicy
& EFI_RESERVE_VGA_IO_ALIAS
) != 0) {
235 if (Bridge
== NULL
) {
239 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
242 // Assume the bridge is aligned
244 while (CurrentLink
!= &Bridge
->ChildList
) {
246 Node
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
249 // Consider the aperture alignment
251 Offset
= Aperture
& (Node
->Alignment
);
255 Aperture
= Aperture
+ (Node
->Alignment
+ 1) - Offset
;
260 // IsaEnable and VGAEnable can not be implemented now.
261 // If both of them are enabled, then the IO resource would
262 // become too limited to meet the requirement of most of devices.
264 if (IsaEnable
|| VGAEnable
) {
265 if (!IS_PCI_BRIDGE (&(Node
->PciDev
->Pci
)) && !IS_CARDBUS_BRIDGE (&(Node
->PciDev
->Pci
))) {
267 // Check if there is need to support ISA/VGA decoding
268 // If so, we need to avoid isa/vga aliasing range
271 SkipIsaAliasAperture (
275 Offset
= Aperture
& (Node
->Alignment
);
277 Aperture
= Aperture
+ (Node
->Alignment
+ 1) - Offset
;
279 } else if (VGAEnable
) {
284 Offset
= Aperture
& (Node
->Alignment
);
286 Aperture
= Aperture
+ (Node
->Alignment
+ 1) - Offset
;
292 Node
->Offset
= Aperture
;
295 // Increment aperture by the length of node
297 Aperture
+= Node
->Length
;
299 CurrentLink
= CurrentLink
->ForwardLink
;
303 // At last, adjust the aperture with the bridge's
306 Offset
= Aperture
& (Bridge
->Alignment
);
309 Aperture
= Aperture
+ (Bridge
->Alignment
+ 1) - Offset
;
312 Bridge
->Length
= Aperture
;
314 // At last, adjust the bridge's alignment to the first child's alignment
315 // if the bridge has at least one child
317 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
318 if (CurrentLink
!= &Bridge
->ChildList
) {
319 Node
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
320 if (Node
->Alignment
> Bridge
->Alignment
) {
321 Bridge
->Alignment
= Node
->Alignment
;
327 This function is used to calculate the resource aperture
328 for a given bridge device.
330 @param Bridge PCI resouce node for given bridge device.
334 CalculateResourceAperture (
335 IN PCI_RESOURCE_NODE
*Bridge
339 LIST_ENTRY
*CurrentLink
;
340 PCI_RESOURCE_NODE
*Node
;
346 if (Bridge
== NULL
) {
350 if (Bridge
->ResType
== PciBarTypeIo16
) {
352 CalculateApertureIo16 (Bridge
);
356 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
359 // Assume the bridge is aligned
361 while (CurrentLink
!= &Bridge
->ChildList
) {
363 Node
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
366 // Apply padding resource if available
368 Offset
= Aperture
& (Node
->Alignment
);
372 Aperture
= Aperture
+ (Node
->Alignment
+ 1) - Offset
;
377 // Recode current aperture as a offset
378 // this offset will be used in future real allocation
380 Node
->Offset
= Aperture
;
383 // Increment aperture by the length of node
385 Aperture
+= Node
->Length
;
388 // Consider the aperture alignment
390 CurrentLink
= CurrentLink
->ForwardLink
;
394 // At last, adjust the aperture with the bridge's
397 Offset
= Aperture
& (Bridge
->Alignment
);
399 Aperture
= Aperture
+ (Bridge
->Alignment
+ 1) - Offset
;
403 // If the bridge has already padded the resource and the
404 // amount of padded resource is larger, then keep the
407 if (Bridge
->Length
< Aperture
) {
408 Bridge
->Length
= Aperture
;
412 // At last, adjust the bridge's alignment to the first child's alignment
413 // if the bridge has at least one child
415 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
416 if (CurrentLink
!= &Bridge
->ChildList
) {
417 Node
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
418 if (Node
->Alignment
> Bridge
->Alignment
) {
419 Bridge
->Alignment
= Node
->Alignment
;
425 Get IO/Memory resource infor for given PCI device.
427 @param PciDev Pci device instance.
428 @param IoNode Resource info node for IO .
429 @param Mem32Node Resource info node for 32-bit memory.
430 @param PMem32Node Resource info node for 32-bit Prefetchable Memory.
431 @param Mem64Node Resource info node for 64-bit memory.
432 @param PMem64Node Resource info node for 64-bit Prefetchable Memory.
436 GetResourceFromDevice (
437 IN PCI_IO_DEVICE
*PciDev
,
438 IN OUT PCI_RESOURCE_NODE
*IoNode
,
439 IN OUT PCI_RESOURCE_NODE
*Mem32Node
,
440 IN OUT PCI_RESOURCE_NODE
*PMem32Node
,
441 IN OUT PCI_RESOURCE_NODE
*Mem64Node
,
442 IN OUT PCI_RESOURCE_NODE
*PMem64Node
447 PCI_RESOURCE_NODE
*Node
;
448 BOOLEAN ResourceRequested
;
451 ResourceRequested
= FALSE
;
453 for (Index
= 0; Index
< PCI_MAX_BAR
; Index
++) {
455 switch ((PciDev
->PciBar
)[Index
].BarType
) {
457 case PciBarTypeMem32
:
459 Node
= CreateResourceNode (
461 (PciDev
->PciBar
)[Index
].Length
,
462 (PciDev
->PciBar
)[Index
].Alignment
,
473 ResourceRequested
= TRUE
;
476 case PciBarTypeMem64
:
478 Node
= CreateResourceNode (
480 (PciDev
->PciBar
)[Index
].Length
,
481 (PciDev
->PciBar
)[Index
].Alignment
,
492 ResourceRequested
= TRUE
;
495 case PciBarTypePMem64
:
497 Node
= CreateResourceNode (
499 (PciDev
->PciBar
)[Index
].Length
,
500 (PciDev
->PciBar
)[Index
].Alignment
,
511 ResourceRequested
= TRUE
;
514 case PciBarTypePMem32
:
516 Node
= CreateResourceNode (
518 (PciDev
->PciBar
)[Index
].Length
,
519 (PciDev
->PciBar
)[Index
].Alignment
,
529 ResourceRequested
= TRUE
;
535 Node
= CreateResourceNode (
537 (PciDev
->PciBar
)[Index
].Length
,
538 (PciDev
->PciBar
)[Index
].Alignment
,
548 ResourceRequested
= TRUE
;
551 case PciBarTypeUnknown
:
562 for (Index
= 0; Index
< PCI_MAX_BAR
; Index
++) {
564 switch ((PciDev
->VfPciBar
)[Index
].BarType
) {
566 case PciBarTypeMem32
:
568 Node
= CreateVfResourceNode (
570 (PciDev
->VfPciBar
)[Index
].Length
,
571 (PciDev
->VfPciBar
)[Index
].Alignment
,
584 case PciBarTypeMem64
:
586 Node
= CreateVfResourceNode (
588 (PciDev
->VfPciBar
)[Index
].Length
,
589 (PciDev
->VfPciBar
)[Index
].Alignment
,
602 case PciBarTypePMem64
:
604 Node
= CreateVfResourceNode (
606 (PciDev
->VfPciBar
)[Index
].Length
,
607 (PciDev
->VfPciBar
)[Index
].Alignment
,
620 case PciBarTypePMem32
:
622 Node
= CreateVfResourceNode (
624 (PciDev
->VfPciBar
)[Index
].Length
,
625 (PciDev
->VfPciBar
)[Index
].Alignment
,
641 case PciBarTypeUnknown
:
648 // If there is no resource requested from this device,
649 // then we indicate this device has been allocated naturally.
651 if (!ResourceRequested
) {
652 PciDev
->Allocated
= TRUE
;
657 This function is used to create a resource node.
659 @param PciDev Pci device instance.
660 @param Length Length of Io/Memory resource.
661 @param Alignment Alignment of resource.
662 @param Bar Bar index.
663 @param ResType Type of resource: IO/Memory.
664 @param ResUsage Resource usage.
666 @return PCI resource node created for given PCI device.
667 NULL means PCI resource node is not created.
672 IN PCI_IO_DEVICE
*PciDev
,
676 IN PCI_BAR_TYPE ResType
,
677 IN PCI_RESOURCE_USAGE ResUsage
680 PCI_RESOURCE_NODE
*Node
;
684 Node
= AllocateZeroPool (sizeof (PCI_RESOURCE_NODE
));
685 ASSERT (Node
!= NULL
);
690 Node
->Signature
= PCI_RESOURCE_SIGNATURE
;
691 Node
->PciDev
= PciDev
;
692 Node
->Length
= Length
;
693 Node
->Alignment
= Alignment
;
695 Node
->ResType
= ResType
;
696 Node
->Reserved
= FALSE
;
697 Node
->ResourceUsage
= ResUsage
;
698 InitializeListHead (&Node
->ChildList
);
704 This function is used to create a IOV VF resource node.
706 @param PciDev Pci device instance.
707 @param Length Length of Io/Memory resource.
708 @param Alignment Alignment of resource.
709 @param Bar Bar index.
710 @param ResType Type of resource: IO/Memory.
711 @param ResUsage Resource usage.
713 @return PCI resource node created for given VF PCI device.
714 NULL means PCI resource node is not created.
718 CreateVfResourceNode (
719 IN PCI_IO_DEVICE
*PciDev
,
723 IN PCI_BAR_TYPE ResType
,
724 IN PCI_RESOURCE_USAGE ResUsage
727 PCI_RESOURCE_NODE
*Node
;
731 "PCI-IOV B%x.D%x.F%x - VfResource (Bar - 0x%x) (Type - 0x%x) (Length - 0x%x)\n",
732 (UINTN
)PciDev
->BusNumber
,
733 (UINTN
)PciDev
->DeviceNumber
,
734 (UINTN
)PciDev
->FunctionNumber
,
740 Node
= CreateResourceNode (PciDev
, Length
, Alignment
, Bar
, ResType
, ResUsage
);
745 Node
->Virtual
= TRUE
;
751 This function is used to extract resource request from
754 @param Bridge Pci device instance.
755 @param IoNode Resource info node for IO.
756 @param Mem32Node Resource info node for 32-bit memory.
757 @param PMem32Node Resource info node for 32-bit Prefetchable Memory.
758 @param Mem64Node Resource info node for 64-bit memory.
759 @param PMem64Node Resource info node for 64-bit Prefetchable Memory.
764 IN PCI_IO_DEVICE
*Bridge
,
765 IN OUT PCI_RESOURCE_NODE
*IoNode
,
766 IN OUT PCI_RESOURCE_NODE
*Mem32Node
,
767 IN OUT PCI_RESOURCE_NODE
*PMem32Node
,
768 IN OUT PCI_RESOURCE_NODE
*Mem64Node
,
769 IN OUT PCI_RESOURCE_NODE
*PMem64Node
773 PCI_RESOURCE_NODE
*IoBridge
;
774 PCI_RESOURCE_NODE
*Mem32Bridge
;
775 PCI_RESOURCE_NODE
*PMem32Bridge
;
776 PCI_RESOURCE_NODE
*Mem64Bridge
;
777 PCI_RESOURCE_NODE
*PMem64Bridge
;
778 LIST_ENTRY
*CurrentLink
;
780 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
782 while (CurrentLink
!= NULL
&& CurrentLink
!= &Bridge
->ChildList
) {
784 Temp
= PCI_IO_DEVICE_FROM_LINK (CurrentLink
);
787 // Create resource nodes for this device by scanning the
788 // Bar array in the device private data
789 // If the upstream bridge doesn't support this device,
790 // no any resource node will be created for this device
792 GetResourceFromDevice (
801 if (IS_PCI_BRIDGE (&Temp
->Pci
)) {
804 // If the device has children, create a bridge resource node for this PPB
805 // Note: For PPB, memory aperture is aligned with 1MB and IO aperture
806 // is aligned with 4KB (smaller alignments may be supported).
808 IoBridge
= CreateResourceNode (
811 Temp
->BridgeIoAlignment
,
817 Mem32Bridge
= CreateResourceNode (
826 PMem32Bridge
= CreateResourceNode (
835 Mem64Bridge
= CreateResourceNode (
844 PMem64Bridge
= CreateResourceNode (
854 // Recursively create resouce map on this bridge
865 if (ResourceRequestExisted (IoBridge
)) {
876 // If there is node under this resource bridge,
877 // then calculate bridge's aperture of this type
878 // and insert it into the respective resource tree.
879 // If no, delete this resource bridge
881 if (ResourceRequestExisted (Mem32Bridge
)) {
887 FreePool (Mem32Bridge
);
892 // If there is node under this resource bridge,
893 // then calculate bridge's aperture of this type
894 // and insert it into the respective resource tree.
895 // If no, delete this resource bridge
897 if (ResourceRequestExisted (PMem32Bridge
)) {
903 FreePool (PMem32Bridge
);
908 // If there is node under this resource bridge,
909 // then calculate bridge's aperture of this type
910 // and insert it into the respective resource tree.
911 // If no, delete this resource bridge
913 if (ResourceRequestExisted (Mem64Bridge
)) {
919 FreePool (Mem64Bridge
);
924 // If there is node under this resource bridge,
925 // then calculate bridge's aperture of this type
926 // and insert it into the respective resource tree.
927 // If no, delete this resource bridge
929 if (ResourceRequestExisted (PMem64Bridge
)) {
935 FreePool (PMem64Bridge
);
942 // If it is P2C, apply hard coded resource padding
944 if (IS_CARDBUS_BRIDGE (&Temp
->Pci
)) {
945 ResourcePaddingForCardBusBridge (
955 CurrentLink
= CurrentLink
->ForwardLink
;
959 // To do some platform specific resource padding ...
961 ResourcePaddingPolicy (
971 // Degrade resource if necessary
982 // Calculate resource aperture for this bridge device
984 CalculateResourceAperture (Mem32Node
);
985 CalculateResourceAperture (PMem32Node
);
986 CalculateResourceAperture (Mem64Node
);
987 CalculateResourceAperture (PMem64Node
);
988 CalculateResourceAperture (IoNode
);
992 This function is used to do the resource padding for a specific platform.
994 @param PciDev Pci device instance.
995 @param IoNode Resource info node for IO.
996 @param Mem32Node Resource info node for 32-bit memory.
997 @param PMem32Node Resource info node for 32-bit Prefetchable Memory.
998 @param Mem64Node Resource info node for 64-bit memory.
999 @param PMem64Node Resource info node for 64-bit Prefetchable Memory.
1003 ResourcePaddingPolicy (
1004 IN PCI_IO_DEVICE
*PciDev
,
1005 IN PCI_RESOURCE_NODE
*IoNode
,
1006 IN PCI_RESOURCE_NODE
*Mem32Node
,
1007 IN PCI_RESOURCE_NODE
*PMem32Node
,
1008 IN PCI_RESOURCE_NODE
*Mem64Node
,
1009 IN PCI_RESOURCE_NODE
*PMem64Node
1013 // Create padding resource node
1015 if (PciDev
->ResourcePaddingDescriptors
!= NULL
) {
1016 ApplyResourcePadding (
1028 This function is used to degrade resource if the upstream bridge
1029 doesn't support certain resource. Degradation path is
1030 PMEM64 -> MEM64 -> MEM32
1031 PMEM64 -> PMEM32 -> MEM32
1034 @param Bridge Pci device instance.
1035 @param Mem32Node Resource info node for 32-bit memory.
1036 @param PMem32Node Resource info node for 32-bit Prefetchable Memory.
1037 @param Mem64Node Resource info node for 64-bit memory.
1038 @param PMem64Node Resource info node for 64-bit Prefetchable Memory.
1043 IN PCI_IO_DEVICE
*Bridge
,
1044 IN PCI_RESOURCE_NODE
*Mem32Node
,
1045 IN PCI_RESOURCE_NODE
*PMem32Node
,
1046 IN PCI_RESOURCE_NODE
*Mem64Node
,
1047 IN PCI_RESOURCE_NODE
*PMem64Node
1051 PCI_IO_DEVICE
*Temp
;
1052 LIST_ENTRY
*CurrentLink
;
1055 // For RootBridge, PPB , P2C, go recursively to traverse all its children
1056 // to find if this bridge and downstream has OptionRom.
1059 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
1060 while (CurrentLink
!= NULL
&& CurrentLink
!= &Bridge
->ChildList
) {
1062 Temp
= PCI_IO_DEVICE_FROM_LINK (CurrentLink
);
1063 if (Temp
->RomSize
!= 0) {
1067 CurrentLink
= CurrentLink
->ForwardLink
;
1071 // If bridge doesn't support Prefetchable
1072 // memory64, degrade it to Prefetchable memory32
1074 if (!BridgeSupportResourceDecode (Bridge
, EFI_BRIDGE_PMEM64_DECODE_SUPPORTED
)) {
1082 // if no PMem32 request and no OptionRom request, still keep PMem64. Otherwise degrade to PMem32
1084 if ((PMem32Node
!= NULL
&& (PMem32Node
->Length
!= 0 && Bridge
->Parent
!= NULL
)) || HasOprom
) {
1086 // Fixed the issue that there is no resource for 64-bit (above 4G)
1098 // If bridge doesn't support Mem64
1099 // degrade it to mem32
1101 if (!BridgeSupportResourceDecode (Bridge
, EFI_BRIDGE_MEM64_DECODE_SUPPORTED
)) {
1110 // If bridge doesn't support Pmem32
1111 // degrade it to mem32
1113 if (!BridgeSupportResourceDecode (Bridge
, EFI_BRIDGE_PMEM32_DECODE_SUPPORTED
)) {
1122 // if bridge supports combined Pmem Mem decoding
1123 // merge these two type of resource
1125 if (BridgeSupportResourceDecode (Bridge
, EFI_BRIDGE_PMEM_MEM_COMBINE_SUPPORTED
)) {
1141 Test whether bridge device support decode resource.
1143 @param Bridge Bridge device instance.
1144 @param Decode Decode type according to resource type.
1146 @return TRUE The bridge device support decode resource.
1147 @return FALSE The bridge device don't support decode resource.
1151 BridgeSupportResourceDecode (
1152 IN PCI_IO_DEVICE
*Bridge
,
1156 if (((Bridge
->Decodes
) & Decode
) != 0) {
1164 This function is used to program the resource allocated
1165 for each resource node under specified bridge.
1167 @param Base Base address of resource to be progammed.
1168 @param Bridge PCI resource node for the bridge device.
1170 @retval EFI_SUCCESS Successfully to program all resouces
1171 on given PCI bridge device.
1172 @retval EFI_OUT_OF_RESOURCES Base is all one.
1178 IN PCI_RESOURCE_NODE
*Bridge
1181 LIST_ENTRY
*CurrentLink
;
1182 PCI_RESOURCE_NODE
*Node
;
1185 if (Base
== gAllOne
) {
1186 return EFI_OUT_OF_RESOURCES
;
1189 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
1191 while (CurrentLink
!= &Bridge
->ChildList
) {
1193 Node
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1195 if (!IS_PCI_BRIDGE (&(Node
->PciDev
->Pci
))) {
1197 if (IS_CARDBUS_BRIDGE (&(Node
->PciDev
->Pci
))) {
1199 // Program the PCI Card Bus device
1201 ProgramP2C (Base
, Node
);
1204 // Program the PCI device BAR
1206 ProgramBar (Base
, Node
);
1210 // Program the PCI devices under this bridge
1212 Status
= ProgramResource (Base
+ Node
->Offset
, Node
);
1213 if (EFI_ERROR (Status
)) {
1217 ProgramPpbApperture (Base
, Node
);
1220 CurrentLink
= CurrentLink
->ForwardLink
;
1227 Program Bar register for PCI device.
1229 @param Base Base address for PCI device resource to be progammed.
1230 @param Node Point to resoure node structure.
1236 IN PCI_RESOURCE_NODE
*Node
1239 EFI_PCI_IO_PROTOCOL
*PciIo
;
1243 ASSERT (Node
->Bar
< PCI_MAX_BAR
);
1248 if (Node
->Virtual
) {
1249 ProgramVfBar (Base
, Node
);
1253 PciIo
= &(Node
->PciDev
->PciIo
);
1255 Address
= Base
+ Node
->Offset
;
1258 // Indicate pci bus driver has allocated
1259 // resource for this device
1260 // It might be a temporary solution here since
1261 // pci device could have multiple bar
1263 Node
->PciDev
->Allocated
= TRUE
;
1265 switch ((Node
->PciDev
->PciBar
[Node
->Bar
]).BarType
) {
1267 case PciBarTypeIo16
:
1268 case PciBarTypeIo32
:
1269 case PciBarTypeMem32
:
1270 case PciBarTypePMem32
:
1274 EfiPciIoWidthUint32
,
1275 (Node
->PciDev
->PciBar
[Node
->Bar
]).Offset
,
1280 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1284 case PciBarTypeMem64
:
1285 case PciBarTypePMem64
:
1287 Address32
= (UINT32
) (Address
& 0x00000000FFFFFFFF);
1291 EfiPciIoWidthUint32
,
1292 (Node
->PciDev
->PciBar
[Node
->Bar
]).Offset
,
1297 Address32
= (UINT32
) RShiftU64 (Address
, 32);
1301 EfiPciIoWidthUint32
,
1302 (UINT8
) ((Node
->PciDev
->PciBar
[Node
->Bar
]).Offset
+ 4),
1307 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1317 Program IOV VF Bar register for PCI device.
1319 @param Base Base address for PCI device resource to be progammed.
1320 @param Node Point to resoure node structure.
1326 IN PCI_RESOURCE_NODE
*Node
1329 EFI_PCI_IO_PROTOCOL
*PciIo
;
1333 ASSERT (Node
->Bar
< PCI_MAX_BAR
);
1334 ASSERT (Node
->Virtual
);
1337 PciIo
= &(Node
->PciDev
->PciIo
);
1339 Address
= Base
+ Node
->Offset
;
1342 // Indicate pci bus driver has allocated
1343 // resource for this device
1344 // It might be a temporary solution here since
1345 // pci device could have multiple bar
1347 Node
->PciDev
->Allocated
= TRUE
;
1349 switch ((Node
->PciDev
->VfPciBar
[Node
->Bar
]).BarType
) {
1351 case PciBarTypeMem32
:
1352 case PciBarTypePMem32
:
1356 EfiPciIoWidthUint32
,
1357 (Node
->PciDev
->VfPciBar
[Node
->Bar
]).Offset
,
1362 Node
->PciDev
->VfPciBar
[Node
->Bar
].BaseAddress
= Address
;
1366 "PCI-IOV B%x.D%x.F%x - VF Bar (Offset - 0x%x) 32Mem (Address - 0x%x)\n",
1367 (UINTN
)Node
->PciDev
->BusNumber
,
1368 (UINTN
)Node
->PciDev
->DeviceNumber
,
1369 (UINTN
)Node
->PciDev
->FunctionNumber
,
1370 (UINTN
)(Node
->PciDev
->VfPciBar
[Node
->Bar
]).Offset
,
1376 case PciBarTypeMem64
:
1377 case PciBarTypePMem64
:
1379 Address32
= (UINT32
) (Address
& 0x00000000FFFFFFFF);
1383 EfiPciIoWidthUint32
,
1384 (Node
->PciDev
->VfPciBar
[Node
->Bar
]).Offset
,
1389 Address32
= (UINT32
) RShiftU64 (Address
, 32);
1393 EfiPciIoWidthUint32
,
1394 ((Node
->PciDev
->VfPciBar
[Node
->Bar
]).Offset
+ 4),
1399 Node
->PciDev
->VfPciBar
[Node
->Bar
].BaseAddress
= Address
;
1403 "PCI-IOV B%x.D%x.F%x - VF Bar (Offset - 0x%x) 64Mem (Address - 0x%lx)\n",
1404 (UINTN
)Node
->PciDev
->BusNumber
,
1405 (UINTN
)Node
->PciDev
->DeviceNumber
,
1406 (UINTN
)Node
->PciDev
->FunctionNumber
,
1407 (UINTN
)(Node
->PciDev
->VfPciBar
[Node
->Bar
]).Offset
,
1413 case PciBarTypeIo16
:
1414 case PciBarTypeIo32
:
1425 Program PCI-PCI bridge apperture.
1427 @param Base Base address for resource.
1428 @param Node Point to resoure node structure.
1432 ProgramPpbApperture (
1434 IN PCI_RESOURCE_NODE
*Node
1437 EFI_PCI_IO_PROTOCOL
*PciIo
;
1443 // If no device resource of this PPB, return anyway
1444 // Apperture is set default in the initialization code
1446 if (Node
->Length
== 0 || Node
->ResourceUsage
== PciResUsagePadding
) {
1448 // For padding resource node, just ignore when programming
1453 PciIo
= &(Node
->PciDev
->PciIo
);
1454 Address
= Base
+ Node
->Offset
;
1457 // Indicate the PPB resource has been allocated
1459 Node
->PciDev
->Allocated
= TRUE
;
1461 switch (Node
->Bar
) {
1467 EfiPciIoWidthUint32
,
1468 (Node
->PciDev
->PciBar
[Node
->Bar
]).Offset
,
1473 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1474 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
1480 Address32
= ((UINT32
) (Address
)) >> 8;
1492 EfiPciIoWidthUint16
,
1498 Address32
= (UINT32
) (Address
+ Node
->Length
- 1);
1499 Address32
= ((UINT32
) (Address32
)) >> 8;
1511 EfiPciIoWidthUint16
,
1517 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1518 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
1521 case PPB_MEM32_RANGE
:
1523 Address32
= ((UINT32
) (Address
)) >> 16;
1526 EfiPciIoWidthUint16
,
1532 Address32
= (UINT32
) (Address
+ Node
->Length
- 1);
1533 Address32
= ((UINT32
) (Address32
)) >> 16;
1536 EfiPciIoWidthUint16
,
1542 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1543 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
1546 case PPB_PMEM32_RANGE
:
1547 case PPB_PMEM64_RANGE
:
1549 Address32
= ((UINT32
) (Address
)) >> 16;
1552 EfiPciIoWidthUint16
,
1558 Address32
= (UINT32
) (Address
+ Node
->Length
- 1);
1559 Address32
= ((UINT32
) (Address32
)) >> 16;
1562 EfiPciIoWidthUint16
,
1568 Address32
= (UINT32
) RShiftU64 (Address
, 32);
1571 EfiPciIoWidthUint32
,
1577 Address32
= (UINT32
) RShiftU64 ((Address
+ Node
->Length
- 1), 32);
1580 EfiPciIoWidthUint32
,
1586 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1587 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
1596 Program parent bridge for Option Rom.
1598 @param PciDevice Pci deivce instance.
1599 @param OptionRomBase Base address for Optiona Rom.
1600 @param Enable Enable or disable PCI memory.
1604 ProgrameUpstreamBridgeForRom (
1605 IN PCI_IO_DEVICE
*PciDevice
,
1606 IN UINT32 OptionRomBase
,
1610 PCI_IO_DEVICE
*Parent
;
1611 PCI_RESOURCE_NODE Node
;
1613 // For root bridge, just return.
1615 Parent
= PciDevice
->Parent
;
1616 ZeroMem (&Node
, sizeof (Node
));
1617 while (Parent
!= NULL
) {
1618 if (!IS_PCI_BRIDGE (&Parent
->Pci
)) {
1622 Node
.PciDev
= Parent
;
1623 Node
.Length
= PciDevice
->RomSize
;
1625 Node
.Bar
= PPB_MEM32_RANGE
;
1626 Node
.ResType
= PciBarTypeMem32
;
1630 // Program PPB to only open a single <= 16MB apperture
1633 ProgramPpbApperture (OptionRomBase
, &Node
);
1634 PCI_ENABLE_COMMAND_REGISTER (Parent
, EFI_PCI_COMMAND_MEMORY_SPACE
);
1636 InitializePpb (Parent
);
1637 PCI_DISABLE_COMMAND_REGISTER (Parent
, EFI_PCI_COMMAND_MEMORY_SPACE
);
1640 Parent
= Parent
->Parent
;
1645 Test whether resource exists for a bridge.
1647 @param Bridge Point to resource node for a bridge.
1649 @retval TRUE There is resource on the given bridge.
1650 @retval FALSE There isn't resource on the given bridge.
1654 ResourceRequestExisted (
1655 IN PCI_RESOURCE_NODE
*Bridge
1658 if (Bridge
!= NULL
) {
1659 if (!IsListEmpty (&Bridge
->ChildList
) || Bridge
->Length
!= 0) {
1668 Initialize resource pool structure.
1670 @param ResourcePool Point to resource pool structure. This pool
1671 is reset to all zero when returned.
1672 @param ResourceType Type of resource.
1676 InitializeResourcePool (
1677 IN OUT PCI_RESOURCE_NODE
*ResourcePool
,
1678 IN PCI_BAR_TYPE ResourceType
1681 ZeroMem (ResourcePool
, sizeof (PCI_RESOURCE_NODE
));
1682 ResourcePool
->ResType
= ResourceType
;
1683 ResourcePool
->Signature
= PCI_RESOURCE_SIGNATURE
;
1684 InitializeListHead (&ResourcePool
->ChildList
);
1689 Get all resource information for given Pci device.
1691 @param PciDev Pci device instance.
1692 @param IoBridge Io resource node.
1693 @param Mem32Bridge 32-bit memory node.
1694 @param PMem32Bridge 32-bit Pmemory node.
1695 @param Mem64Bridge 64-bit memory node.
1696 @param PMem64Bridge 64-bit PMemory node.
1697 @param IoPool Link list header for Io resource.
1698 @param Mem32Pool Link list header for 32-bit memory.
1699 @param PMem32Pool Link list header for 32-bit Prefetchable memory.
1700 @param Mem64Pool Link list header for 64-bit memory.
1701 @param PMem64Pool Link list header for 64-bit Prefetchable memory.
1706 IN PCI_IO_DEVICE
*PciDev
,
1707 IN PCI_RESOURCE_NODE
**IoBridge
,
1708 IN PCI_RESOURCE_NODE
**Mem32Bridge
,
1709 IN PCI_RESOURCE_NODE
**PMem32Bridge
,
1710 IN PCI_RESOURCE_NODE
**Mem64Bridge
,
1711 IN PCI_RESOURCE_NODE
**PMem64Bridge
,
1712 IN PCI_RESOURCE_NODE
*IoPool
,
1713 IN PCI_RESOURCE_NODE
*Mem32Pool
,
1714 IN PCI_RESOURCE_NODE
*PMem32Pool
,
1715 IN PCI_RESOURCE_NODE
*Mem64Pool
,
1716 IN PCI_RESOURCE_NODE
*PMem64Pool
1720 PCI_RESOURCE_NODE
*Temp
;
1721 LIST_ENTRY
*CurrentLink
;
1723 CurrentLink
= IoPool
->ChildList
.ForwardLink
;
1726 // Get Io resource map
1728 while (CurrentLink
!= &IoPool
->ChildList
) {
1730 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1732 if (Temp
->PciDev
== PciDev
) {
1736 CurrentLink
= CurrentLink
->ForwardLink
;
1740 // Get Mem32 resource map
1742 CurrentLink
= Mem32Pool
->ChildList
.ForwardLink
;
1744 while (CurrentLink
!= &Mem32Pool
->ChildList
) {
1746 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1748 if (Temp
->PciDev
== PciDev
) {
1749 *Mem32Bridge
= Temp
;
1752 CurrentLink
= CurrentLink
->ForwardLink
;
1756 // Get Pmem32 resource map
1758 CurrentLink
= PMem32Pool
->ChildList
.ForwardLink
;
1760 while (CurrentLink
!= &PMem32Pool
->ChildList
) {
1762 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1764 if (Temp
->PciDev
== PciDev
) {
1765 *PMem32Bridge
= Temp
;
1768 CurrentLink
= CurrentLink
->ForwardLink
;
1772 // Get Mem64 resource map
1774 CurrentLink
= Mem64Pool
->ChildList
.ForwardLink
;
1776 while (CurrentLink
!= &Mem64Pool
->ChildList
) {
1778 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1780 if (Temp
->PciDev
== PciDev
) {
1781 *Mem64Bridge
= Temp
;
1784 CurrentLink
= CurrentLink
->ForwardLink
;
1788 // Get Pmem64 resource map
1790 CurrentLink
= PMem64Pool
->ChildList
.ForwardLink
;
1792 while (CurrentLink
!= &PMem64Pool
->ChildList
) {
1794 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1796 if (Temp
->PciDev
== PciDev
) {
1797 *PMem64Bridge
= Temp
;
1800 CurrentLink
= CurrentLink
->ForwardLink
;
1805 Destory given resource tree.
1807 @param Bridge PCI resource root node of resource tree.
1811 DestroyResourceTree (
1812 IN PCI_RESOURCE_NODE
*Bridge
1815 PCI_RESOURCE_NODE
*Temp
;
1816 LIST_ENTRY
*CurrentLink
;
1818 while (!IsListEmpty (&Bridge
->ChildList
)) {
1820 CurrentLink
= Bridge
->ChildList
.ForwardLink
;
1822 Temp
= RESOURCE_NODE_FROM_LINK (CurrentLink
);
1825 RemoveEntryList (CurrentLink
);
1827 if (IS_PCI_BRIDGE (&(Temp
->PciDev
->Pci
))) {
1828 DestroyResourceTree (Temp
);
1836 Insert resource padding for P2C.
1838 @param PciDev Pci device instance.
1839 @param IoNode Resource info node for IO.
1840 @param Mem32Node Resource info node for 32-bit memory.
1841 @param PMem32Node Resource info node for 32-bit Prefetchable Memory.
1842 @param Mem64Node Resource info node for 64-bit memory.
1843 @param PMem64Node Resource info node for 64-bit Prefetchable Memory.
1847 ResourcePaddingForCardBusBridge (
1848 IN PCI_IO_DEVICE
*PciDev
,
1849 IN PCI_RESOURCE_NODE
*IoNode
,
1850 IN PCI_RESOURCE_NODE
*Mem32Node
,
1851 IN PCI_RESOURCE_NODE
*PMem32Node
,
1852 IN PCI_RESOURCE_NODE
*Mem64Node
,
1853 IN PCI_RESOURCE_NODE
*PMem64Node
1856 PCI_RESOURCE_NODE
*Node
;
1861 // Memory Base/Limit Register 0
1862 // Bar 1 denodes memory range 0
1864 Node
= CreateResourceNode (
1873 InsertResourceNode (
1879 // Memory Base/Limit Register 1
1880 // Bar 2 denodes memory range1
1882 Node
= CreateResourceNode (
1891 InsertResourceNode (
1898 // Bar 3 denodes io range 0
1900 Node
= CreateResourceNode (
1909 InsertResourceNode (
1916 // Bar 4 denodes io range 0
1918 Node
= CreateResourceNode (
1927 InsertResourceNode (
1934 Program PCI Card device register for given resource node.
1936 @param Base Base address of PCI Card device to be programmed.
1937 @param Node Given resource node.
1943 IN PCI_RESOURCE_NODE
*Node
1946 EFI_PCI_IO_PROTOCOL
*PciIo
;
1949 UINT16 BridgeControl
;
1952 PciIo
= &(Node
->PciDev
->PciIo
);
1954 Address
= Base
+ Node
->Offset
;
1957 // Indicate pci bus driver has allocated
1958 // resource for this device
1959 // It might be a temporary solution here since
1960 // pci device could have multiple bar
1962 Node
->PciDev
->Allocated
= TRUE
;
1964 switch (Node
->Bar
) {
1969 EfiPciIoWidthUint32
,
1970 (Node
->PciDev
->PciBar
[Node
->Bar
]).Offset
,
1975 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
1976 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
1982 EfiPciIoWidthUint32
,
1983 PCI_CARD_MEMORY_BASE_0
,
1988 TempAddress
= Address
+ Node
->Length
- 1;
1991 EfiPciIoWidthUint32
,
1992 PCI_CARD_MEMORY_LIMIT_0
,
1997 if (Node
->ResType
== PciBarTypeMem32
) {
1999 // Set non-prefetchable bit
2003 EfiPciIoWidthUint16
,
2004 PCI_CARD_BRIDGE_CONTROL
,
2009 BridgeControl
&= (UINT16
) ~PCI_CARD_PREFETCHABLE_MEMORY_0_ENABLE
;
2012 EfiPciIoWidthUint16
,
2013 PCI_CARD_BRIDGE_CONTROL
,
2020 // Set pre-fetchable bit
2024 EfiPciIoWidthUint16
,
2025 PCI_CARD_BRIDGE_CONTROL
,
2030 BridgeControl
|= PCI_CARD_PREFETCHABLE_MEMORY_0_ENABLE
;
2033 EfiPciIoWidthUint16
,
2034 PCI_CARD_BRIDGE_CONTROL
,
2040 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
2041 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
2042 Node
->PciDev
->PciBar
[Node
->Bar
].BarType
= Node
->ResType
;
2049 EfiPciIoWidthUint32
,
2050 PCI_CARD_MEMORY_BASE_1
,
2055 TempAddress
= Address
+ Node
->Length
- 1;
2059 EfiPciIoWidthUint32
,
2060 PCI_CARD_MEMORY_LIMIT_1
,
2065 if (Node
->ResType
== PciBarTypeMem32
) {
2068 // Set non-prefetchable bit
2072 EfiPciIoWidthUint16
,
2073 PCI_CARD_BRIDGE_CONTROL
,
2078 BridgeControl
&= (UINT16
) ~(PCI_CARD_PREFETCHABLE_MEMORY_1_ENABLE
);
2081 EfiPciIoWidthUint16
,
2082 PCI_CARD_BRIDGE_CONTROL
,
2090 // Set pre-fetchable bit
2094 EfiPciIoWidthUint16
,
2095 PCI_CARD_BRIDGE_CONTROL
,
2100 BridgeControl
|= PCI_CARD_PREFETCHABLE_MEMORY_1_ENABLE
;
2103 EfiPciIoWidthUint16
,
2104 PCI_CARD_BRIDGE_CONTROL
,
2110 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
2111 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
2112 Node
->PciDev
->PciBar
[Node
->Bar
].BarType
= Node
->ResType
;
2118 EfiPciIoWidthUint32
,
2119 PCI_CARD_IO_BASE_0_LOWER
,
2124 TempAddress
= Address
+ Node
->Length
- 1;
2127 EfiPciIoWidthUint32
,
2128 PCI_CARD_IO_LIMIT_0_LOWER
,
2133 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
2134 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
2135 Node
->PciDev
->PciBar
[Node
->Bar
].BarType
= Node
->ResType
;
2142 EfiPciIoWidthUint32
,
2143 PCI_CARD_IO_BASE_1_LOWER
,
2148 TempAddress
= Address
+ Node
->Length
- 1;
2151 EfiPciIoWidthUint32
,
2152 PCI_CARD_IO_LIMIT_1_LOWER
,
2157 Node
->PciDev
->PciBar
[Node
->Bar
].BaseAddress
= Address
;
2158 Node
->PciDev
->PciBar
[Node
->Bar
].Length
= Node
->Length
;
2159 Node
->PciDev
->PciBar
[Node
->Bar
].BarType
= Node
->ResType
;
2168 Create padding resource node.
2170 @param PciDev Pci device instance.
2171 @param IoNode Resource info node for IO.
2172 @param Mem32Node Resource info node for 32-bit memory.
2173 @param PMem32Node Resource info node for 32-bit Prefetchable Memory.
2174 @param Mem64Node Resource info node for 64-bit memory.
2175 @param PMem64Node Resource info node for 64-bit Prefetchable Memory.
2179 ApplyResourcePadding (
2180 IN PCI_IO_DEVICE
*PciDev
,
2181 IN PCI_RESOURCE_NODE
*IoNode
,
2182 IN PCI_RESOURCE_NODE
*Mem32Node
,
2183 IN PCI_RESOURCE_NODE
*PMem32Node
,
2184 IN PCI_RESOURCE_NODE
*Mem64Node
,
2185 IN PCI_RESOURCE_NODE
*PMem64Node
2188 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*Ptr
;
2189 PCI_RESOURCE_NODE
*Node
;
2190 UINT8 DummyBarIndex
;
2193 Ptr
= PciDev
->ResourcePaddingDescriptors
;
2195 while (((EFI_ACPI_END_TAG_DESCRIPTOR
*) Ptr
)->Desc
!= ACPI_END_TAG_DESCRIPTOR
) {
2197 if (Ptr
->Desc
== ACPI_ADDRESS_SPACE_DESCRIPTOR
&& Ptr
->ResType
== ACPI_ADDRESS_SPACE_TYPE_IO
) {
2198 if (Ptr
->AddrLen
!= 0) {
2200 Node
= CreateResourceNode (
2208 InsertResourceNode (
2218 if (Ptr
->Desc
== ACPI_ADDRESS_SPACE_DESCRIPTOR
&& Ptr
->ResType
== ACPI_ADDRESS_SPACE_TYPE_MEM
) {
2220 if (Ptr
->AddrSpaceGranularity
== 32) {
2225 if (Ptr
->SpecificFlag
== 0x6) {
2226 if (Ptr
->AddrLen
!= 0) {
2227 Node
= CreateResourceNode (
2235 InsertResourceNode (
2248 if (Ptr
->SpecificFlag
== 0) {
2249 if (Ptr
->AddrLen
!= 0) {
2250 Node
= CreateResourceNode (
2258 InsertResourceNode (
2269 if (Ptr
->AddrSpaceGranularity
== 64) {
2274 if (Ptr
->SpecificFlag
== 0x6) {
2275 if (Ptr
->AddrLen
!= 0) {
2276 Node
= CreateResourceNode (
2284 InsertResourceNode (
2297 if (Ptr
->SpecificFlag
== 0) {
2298 if (Ptr
->AddrLen
!= 0) {
2299 Node
= CreateResourceNode (
2307 InsertResourceNode (
2324 Get padding resource for PCI-PCI bridge.
2326 @param PciIoDevice PCI-PCI bridge device instance.
2328 @note Feature flag PcdPciBusHotplugDeviceSupport determines
2329 whether need to pad resource for them.
2332 GetResourcePaddingPpb (
2333 IN PCI_IO_DEVICE
*PciIoDevice
2336 if (gPciHotPlugInit
!= NULL
&& FeaturePcdGet (PcdPciBusHotplugDeviceSupport
)) {
2337 if (PciIoDevice
->ResourcePaddingDescriptors
== NULL
) {
2338 GetResourcePaddingForHpb (PciIoDevice
);