DynamicTablesPkg: Adds X64 support for CPU SSDT generator

Introduce support for generating ACPI CPU SSDT table for the X64 architecture. Cc: Sami Mujawar <[email protected]> Cc: Pierre Gondois <[email protected]> Signed-off-by: Abdul Lateef Attar <[email protected]>
tianocore · Nov 20, 2024 · e41e493 · e41e493
1 parent 1d8ca11
commit e41e493
Show file tree

Hide file tree

Showing 3 changed files with 111 additions and 0 deletions.
diff --git a/DynamicTablesPkg/DynamicTables.dsc.inc b/DynamicTablesPkg/DynamicTables.dsc.inc
@@ -76,6 +76,9 @@
       NULL|DynamicTablesPkg/Library/Acpi/X64/AcpiMadtLib/AcpiMadtLib.inf
       NULL|DynamicTablesPkg/Library/Acpi/X64/AcpiSsdtHpetLib/AcpiSsdtHpetLib.inf
       NULL|DynamicTablesPkg/Library/Acpi/X64/AcpiWsmtLib/AcpiWsmtLib.inf
+      # AML Codegen
+      #  Common
+      NULL|DynamicTablesPkg/Library/Acpi/Common/AcpiSsdtCpuTopologyLib/SsdtCpuTopologyLib.inf
   }
 
 [Components.ARM, Components.AARCH64]

diff --git a/DynamicTablesPkg/Library/Acpi/Common/AcpiSsdtCpuTopologyLib/SsdtCpuTopologyLib.inf b/DynamicTablesPkg/Library/Acpi/Common/AcpiSsdtCpuTopologyLib/SsdtCpuTopologyLib.inf
@@ -23,6 +23,9 @@
 [Sources.ARM, Sources.AARCH64]
   Arm/ArmSsdtCpuTopologyGenerator.c
 
+[Sources.IA32, Sources.X64]
+  X64/X64SsdtCpuTopologyGenerator.c
+
 [Packages.ARM, Packages.AARCH64]
   ArmPlatformPkg/ArmPlatformPkg.dec
 

diff --git a/...micTablesPkg/Library/Acpi/Common/AcpiSsdtCpuTopologyLib/X64/X64SsdtCpuTopologyGenerator.c b/...micTablesPkg/Library/Acpi/Common/AcpiSsdtCpuTopologyLib/X64/X64SsdtCpuTopologyGenerator.c
@@ -0,0 +1,105 @@
+/** @file
+  X64 SSDT Cpu Topology Table Generator Helpers.
+
+  Copyright (C) 2024 Advanced Micro Devices, Inc. All rights reserved.
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+  @par Reference(s):
+    - ACPI 6.3 Specification - January 2019 - s8.4 Declaring Processors
+**/
+
+/** Create the processor hierarchy AML tree from arch specific CM objects.
+
+  @param [in] Generator        The SSDT Cpu Topology generator.
+  @param [in] CfgMgrProtocol   Pointer to the Configuration Manager
+                               Protocol Interface.
+  @param [in] ScopeNode        Scope node handle ('\_SB' scope).
+
+  @retval EFI_UNSUPPORTED      Not supported
+**/
+
+// Module specific include files.
+#include <ConfigurationManagerObject.h>
+#include <Library/AmlLib/AmlLib.h>
+
+#include "SsdtCpuTopologyGenerator.h"
+
+/**
+  Create the processor hierarchy AML tree from arch specific CM objects.
+
+  @param [in] Generator        The SSDT Cpu Topology generator.
+  @param [in] CfgMgrProtocol   Pointer to the Configuration Manager
+                               Protocol Interface.
+  @param [in] ScopeNode        Scope node handle ('\_SB' scope).
+
+  @retval EFI_UNSUPPORTED      Not supported
+**/
+EFI_STATUS
+EFIAPI
+CreateTopologyFromIntC (
+  IN        ACPI_CPU_TOPOLOGY_GENERATOR                   *Generator,
+  IN  CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL  *CONST  CfgMgrProtocol,
+  IN        AML_OBJECT_NODE_HANDLE                        ScopeNode
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+/** Add arch specific information to a CPU node in the asl description.
+
+  @param [in]  Generator          The SSDT Cpu Topology generator.
+  @param [in]  CfgMgrProtocol     Pointer to the Configuration Manager
+                                  Protocol Interface.
+  @param [in]  AcpiIdObjectToken  AcpiIdObjectToken identifying the CPU to fetch the
+                                  other fields from.
+  @param [in]  CpuName            Value used to generate the CPU node name.
+  @param [out] CpuNode            CPU Node to which the ET device node is
+                                  attached.
+
+  @retval EFI_UNSUPPORTED         Not supported
+**/
+EFI_STATUS
+EFIAPI
+AddArchAmlCpuInfo (
+  IN  ACPI_CPU_TOPOLOGY_GENERATOR                         *Generator,
+  IN  CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL  *CONST  CfgMgrProtocol,
+  IN  CM_OBJECT_TOKEN                                     AcpiIdObjectToken,
+  IN  UINT32                                              CpuName,
+  OUT  AML_OBJECT_NODE_HANDLE                             *CpuNode
+  )
+{
+  return EFI_UNSUPPORTED;
+}
+
+/** Get generic interrupt information from arch specific CM objects.
+
+  The AcpiProcessorUid, CpcToken, etc. are held in arch specific CM objects,
+  in the CM_ARM_GICC_INFO CM object for Arm for instance.
+  This wrapper allows to get this information from each arch object.
+
+  @param [in]  CfgMgrProtocol     Pointer to the Configuration Manager
+                                  Protocol Interface.
+  @param [in]  AcpiIdObjectToken  AcpiIdObjectToken identifying the CPU to fetch the
+                                  other fields from.
+  @param [out] AcpiProcessorUid   AcpiProcessorUid of the CPU identified by
+                                  the AcpiIdObjectToken.
+  @param [out] CpcToken           CpcToken of the CPU identified by
+                                  the AcpiIdObjectToken.
+  @param [out] PsdToken           PsdToken of the CPU identified by
+                                  the AcpiIdObjectToken.
+
+  @retval EFI_UNSUPPORTED         Not supported
+**/
+EFI_STATUS
+EFIAPI
+GetIntCInfo (
+  IN  CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL  *CONST  CfgMgrProtocol,
+  IN  CM_OBJECT_TOKEN                                     AcpiIdObjectToken,
+  OUT UINT32                                              *AcpiProcessorUid,
+  OUT CM_OBJECT_TOKEN                                     *CpcToken,
+  OUT CM_OBJECT_TOKEN                                     *PsdToken
+  )
+{
+  return EFI_UNSUPPORTED;
+}