[edk2-devel] [PATCH v3 3/3] Silicon/ARM/NeoverseN1Soc: Add CCIX root complex support

Khasim Mohammed khasim.mohammed at arm.com
Mon Dec 6 10:22:01 UTC 2021


This patch enables CCIX root complex support by updating
the root complex node info in PciHostBridge library
and enabling PciSegment library for N1Sdp.

Change-Id: I0510b1023aec16365b614d4eaf81858851d9fa28
Signed-off-by: Khasim Syed Mohammed <khasim.mohammed at arm.com>
---
 .../ConfigurationManager.c                    |  6 +-
 .../ConfigurationManagerDxe.inf               |  4 +-
 Platform/ARM/N1Sdp/N1SdpPlatform.dec          | 10 ++-
 Platform/ARM/N1Sdp/N1SdpPlatform.dsc          |  3 +-
 .../PciHostBridgeLib/PciHostBridgeLib.c       | 71 +++++++++++++++++--
 .../PciHostBridgeLib/PciHostBridgeLib.inf     | 11 ++-
 .../Library/PlatformLib/PlatformLib.inf       |  1 +
 .../Library/PlatformLib/PlatformLibMem.c      |  4 +-
 8 files changed, 89 insertions(+), 21 deletions(-)

diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
index 9c91372c11..1998c44e63 100644
--- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
+++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManager.c
@@ -1047,21 +1047,21 @@ EDKII_PLATFORM_REPOSITORY_INFO N1sdpRepositoryInfo = {
   {
     // PCIe ECAM
     {
-      0x70000000,      // Base Address
+      FixedPcdGet64 (PcdPcieExpressBaseAddress),      // Base Address
       0x0,             // Segment Group Number
       0x0,             // Start Bus Number
       17               // End Bus Number
     },
     // CCIX ECAM
     {
-      0x68000000,      // Base Address
+      FixedPcdGet32 (PcdCcixExpressBaseAddress),      // Base Address
       0x1,             // Segment Group Number
       0x0,               // Start Bus Number
       17               // End Bus Number
     },
     //Remote Chip PCIe ECAM
     {
-      0x40070000000,   // Base Address
+      FixedPcdGet64 (PcdRemotePcieBaseAddress),   // Base Address
       0x2,             // Segment Group Number
       0x0,             // Start Bus Number
       17               // End Bus Number
diff --git a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
index 027a4202ff..84543e2f95 100644
--- a/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
+++ b/Platform/ARM/N1Sdp/ConfigurationManager/ConfigurationManagerDxe/ConfigurationManagerDxe.inf
@@ -76,8 +76,6 @@
   gEfiMdeModulePkgTokenSpaceGuid.PcdSerialRegisterBase
   gEfiMdePkgTokenSpaceGuid.PcdUartDefaultBaudRate
 
-  gArmN1SdpTokenSpaceGuid.PcdPcieExpressBaseAddress
-
   gArmNeoverseN1SocTokenSpaceGuid.PcdExtMemorySpace
   gArmNeoverseN1SocTokenSpaceGuid.PcdDramBlock2Base
 
@@ -91,6 +89,7 @@
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieBusCount
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieBusMax
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieBusMin
+  gArmNeoverseN1SocTokenSpaceGuid.PcdPcieExpressBaseAddress
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieIoBase
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieIoMaxBase
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieIoSize
@@ -158,6 +157,7 @@
   gArmN1SdpTokenSpaceGuid.PcdCsTpiuMaxBase
 
   # Remote PCIe
+  gArmN1SdpTokenSpaceGuid.PcdRemotePcieBaseAddress
   gArmN1SdpTokenSpaceGuid.PcdRemotePcieIoTranslation
   gArmN1SdpTokenSpaceGuid.PcdRemotePcieMmio32Translation
   gArmN1SdpTokenSpaceGuid.PcdRemotePcieMmio64Translation
diff --git a/Platform/ARM/N1Sdp/N1SdpPlatform.dec b/Platform/ARM/N1Sdp/N1SdpPlatform.dec
index 2ab6c20dcc..ed7ea44d0d 100644
--- a/Platform/ARM/N1Sdp/N1SdpPlatform.dec
+++ b/Platform/ARM/N1Sdp/N1SdpPlatform.dec
@@ -34,9 +34,6 @@
   gArmN1SdpTokenSpaceGuid.PcdRamDiskBase|0x88000000|UINT32|0x00000001
   gArmN1SdpTokenSpaceGuid.PcdRamDiskSize|0x18000000|UINT32|0x00000002
 
-  # PCIe
-  gArmN1SdpTokenSpaceGuid.PcdPcieExpressBaseAddress|0x70000000|UINT32|0x00000007
-
   # External memory
   gArmNeoverseN1SocTokenSpaceGuid.PcdExtMemorySpace|0|UINT64|0x00000029
 
@@ -94,6 +91,7 @@
   gArmN1SdpTokenSpaceGuid.PcdCsComponentSize|0x1000|UINT32|0x00000049
 
   # Remote Chip PCIe
-  gArmN1SdpTokenSpaceGuid.PcdRemotePcieIoTranslation|0x40075200000|UINT64|0x0000004A
-  gArmN1SdpTokenSpaceGuid.PcdRemotePcieMmio32Translation|0x40000000000|UINT64|0x0000004B
-  gArmN1SdpTokenSpaceGuid.PcdRemotePcieMmio64Translation|0x40000000000|UINT64|0x0000004C
+  gArmN1SdpTokenSpaceGuid.PcdRemotePcieBaseAddress|0x40070000000|UINT64|0x0000004A
+  gArmN1SdpTokenSpaceGuid.PcdRemotePcieIoTranslation|0x40075200000|UINT64|0x0000004B
+  gArmN1SdpTokenSpaceGuid.PcdRemotePcieMmio32Translation|0x40000000000|UINT64|0x0000004C
+  gArmN1SdpTokenSpaceGuid.PcdRemotePcieMmio64Translation|0x40000000000|UINT64|0x0000004D
diff --git a/Platform/ARM/N1Sdp/N1SdpPlatform.dsc b/Platform/ARM/N1Sdp/N1SdpPlatform.dsc
index 7488bdc036..75d7871452 100644
--- a/Platform/ARM/N1Sdp/N1SdpPlatform.dsc
+++ b/Platform/ARM/N1Sdp/N1SdpPlatform.dsc
@@ -75,7 +75,7 @@
 [LibraryClasses.common.DXE_DRIVER]
   FdtLib|EmbeddedPkg/Library/FdtLib/FdtLib.inf
   PciHostBridgeLib|Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.inf
-  PciSegmentLib|MdePkg/Library/BasePciSegmentLibPci/BasePciSegmentLibPci.inf
+  PciSegmentLib|Silicon/ARM/NeoverseN1Soc/Library/PciSegmentLib/PciSegmentLib.inf
   PciLib|MdePkg/Library/BasePciLibPciExpress/BasePciLibPciExpress.inf
   PciExpressLib|Silicon/ARM/NeoverseN1Soc/Library/NeoverseN1SocPciExpressLib/PciExpressLib.inf
 
@@ -127,7 +127,6 @@
   gArmTokenSpaceGuid.PcdGicRedistributorsBase|0x300C0000
 
   # PCIe
-  gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress|0x70000000
   gEmbeddedTokenSpaceGuid.PcdPrePiCpuIoSize|24
   gEfiMdeModulePkgTokenSpaceGuid.PcdSrIovSupport|FALSE
 
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.c b/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.c
index 9332939f63..c3a14a6c17 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.c
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.c
@@ -1,7 +1,7 @@
 /** @file
 *  PCI Host Bridge Library instance for ARM Neoverse N1 platform
 *
-*  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
+*  Copyright (c) 2019 - 2021, ARM Limited. All rights reserved.<BR>
 *
 *  SPDX-License-Identifier: BSD-2-Clause-Patent
 *
@@ -16,6 +16,8 @@
 #include <Protocol/PciHostBridgeResourceAllocation.h>
 #include <Protocol/PciRootBridgeIo.h>
 
+#define ROOT_COMPLEX_NUM 2
+
 GLOBAL_REMOVE_IF_UNREFERENCED
 STATIC CHAR16 CONST * CONST mPciHostBridgeLibAcpiAddressSpaceTypeStr[] = {
   L"Mem", L"I/O", L"Bus"
@@ -28,7 +30,7 @@ typedef struct {
 } EFI_PCI_ROOT_BRIDGE_DEVICE_PATH;
 #pragma pack ()
 
-STATIC EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath[] = {
+STATIC EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath[ROOT_COMPLEX_NUM] = {
   // PCIe
   {
     {
@@ -51,10 +53,33 @@ STATIC EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mEfiPciRootBridgeDevicePath[] = {
         0
       }
     }
-  }
+  },
+  //CCIX
+  {
+    {
+      {
+        ACPI_DEVICE_PATH,
+        ACPI_DP,
+        {
+          (UINT8)sizeof (ACPI_HID_DEVICE_PATH),
+          (UINT8)(sizeof (ACPI_HID_DEVICE_PATH) >> 8)
+        }
+      },
+      EISA_PNP_ID(0x0A09), // CCIX
+      0
+    },
+    {
+      END_DEVICE_PATH_TYPE,
+      END_ENTIRE_DEVICE_PATH_SUBTYPE,
+      {
+        END_DEVICE_PATH_LENGTH,
+        0
+      }
+    }
+  },
 };
 
-STATIC PCI_ROOT_BRIDGE mPciRootBridge[] = {
+STATIC PCI_ROOT_BRIDGE mPciRootBridge[ROOT_COMPLEX_NUM] = {
   {
     0,                                              // Segment
     0,                                              // Supports
@@ -90,7 +115,43 @@ STATIC PCI_ROOT_BRIDGE mPciRootBridge[] = {
       0
     },
     (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath[0]
-  }
+  },
+  {
+    1,                                              // Segment
+    0,                                              // Supports
+    0,                                              // Attributes
+    TRUE,                                           // DmaAbove4G
+    FALSE,                                          // NoExtendedConfigSpace
+    FALSE,                                          // ResourceAssigned
+    EFI_PCI_HOST_BRIDGE_COMBINE_MEM_PMEM |          // AllocationAttributes
+    EFI_PCI_HOST_BRIDGE_MEM64_DECODE,
+    {
+      // Bus
+      FixedPcdGet32 (PcdCcixBusMin),
+      FixedPcdGet32 (PcdCcixBusMax)
+    }, {
+      // Io
+      FixedPcdGet64 (PcdCcixIoBase),
+      FixedPcdGet64 (PcdCcixIoBase) + FixedPcdGet64 (PcdCcixIoSize) - 1
+    }, {
+      // Mem
+      FixedPcdGet32 (PcdCcixMmio32Base),
+      FixedPcdGet32 (PcdCcixMmio32Base) + FixedPcdGet32 (PcdCcixMmio32Size) - 1
+    }, {
+      // MemAbove4G
+      FixedPcdGet64 (PcdCcixMmio64Base),
+      FixedPcdGet64 (PcdCcixMmio64Base) + FixedPcdGet64 (PcdCcixMmio64Size) - 1
+    }, {
+      // PMem
+      MAX_UINT64,
+      0
+    }, {
+      // PMemAbove4G
+      MAX_UINT64,
+      0
+    },
+    (EFI_DEVICE_PATH_PROTOCOL *)&mEfiPciRootBridgeDevicePath[1]
+  },
 };
 
 /**
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.inf b/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.inf
index 3ff1c592f2..3356c3ad35 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.inf
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PciHostBridgeLib/PciHostBridgeLib.inf
@@ -1,7 +1,7 @@
 ## @file
 #  PCI Host Bridge Library instance for ARM Neoverse N1 platform.
 #
-#  Copyright (c) 2019 - 2020, ARM Limited. All rights reserved.
+#  Copyright (c) 2019 - 2021, ARM Limited. All rights reserved.<BR>
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
 #
@@ -42,6 +42,15 @@
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieMmio64Base
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieMmio64Size
 
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixBusMin
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixBusMax
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixIoBase
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixIoSize
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixMmio32Base
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixMmio32Size
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixMmio64Base
+  gArmNeoverseN1SocTokenSpaceGuid.PcdCcixMmio64Size
+
 [Protocols]
   gEfiCpuIo2ProtocolGuid
 
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
index 8e2154aadf..96e590cdd8 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLib.inf
@@ -43,6 +43,7 @@
   gArmNeoverseN1SocTokenSpaceGuid.PcdExtMemorySpace
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieBusMax
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieBusMin
+  gArmNeoverseN1SocTokenSpaceGuid.PcdPcieExpressBaseAddress
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieMmio32Base
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieMmio32Size
   gArmNeoverseN1SocTokenSpaceGuid.PcdPcieMmio64Base
diff --git a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
index 1c4a445c5e..339fa07b32 100644
--- a/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
+++ b/Silicon/ARM/NeoverseN1Soc/Library/PlatformLib/PlatformLibMem.c
@@ -115,8 +115,8 @@ ArmPlatformGetVirtualMemoryMap (
   VirtualMemoryTable[Index].Attributes      = ARM_MEMORY_REGION_ATTRIBUTE_DEVICE;
 
   // PCIe ECAM Configuration Space
-  VirtualMemoryTable[++Index].PhysicalBase  = PcdGet64 (PcdPciExpressBaseAddress);
-  VirtualMemoryTable[Index].VirtualBase     = PcdGet64 (PcdPciExpressBaseAddress);
+  VirtualMemoryTable[++Index].PhysicalBase  = PcdGet64 (PcdPcieExpressBaseAddress);
+  VirtualMemoryTable[Index].VirtualBase     = PcdGet64 (PcdPcieExpressBaseAddress);
   VirtualMemoryTable[Index].Length          = (FixedPcdGet32 (PcdPcieBusMax) -
                                                FixedPcdGet32 (PcdPcieBusMin) + 1) *
                                               SIZE_1MB;
-- 
2.17.1



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