From: "Sami Mujawar" <sami.mujawar@arm.com>
To: Jeff Brasen <jbrasen@nvidia.com>, devel@edk2.groups.io
Cc: ardb+tianocore@kernel.org, Alexei.Fedorov@arm.com,
"nd@arm.com" <nd@arm.com>
Subject: Re: [PATCH v2] DynamicTablesPkg: Fix nested processor containers
Date: Thu, 18 Aug 2022 18:17:49 +0100 [thread overview]
Message-ID: <42217cc3-d2c3-a36e-ba2b-fe6890c2fb01@arm.com> (raw)
In-Reply-To: <b585176a4bdf11ad28fc8fc68f3ca6d0e515b6d0.1660841195.git.jbrasen@nvidia.com>
Hi Jeff,
Thank you for the updated patch.
These changes look good to me.
I will queue this patch to be merged once the merge window opens.
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Regards,
Sami Mujawar
On 18/08/2022 05:47 pm, Jeff Brasen wrote:
> Current code will generate duplicate UID if there are nested processor
>
> containers in the topology. For example if there is a
>
> socket/cluster/core layout.
>
>
>
> Change references to processor container from cluster to be more
>
> accurate on what is being created.
>
>
>
> Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
>
> ---
>
> .../SsdtCpuTopologyGenerator.c | 94 ++++++++++---------
>
> 1 file changed, 50 insertions(+), 44 deletions(-)
>
>
>
> diff --git a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c
>
> index 3266d8dd98..8561f48e1f 100644
>
> --- a/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c
>
> +++ b/DynamicTablesPkg/Library/Acpi/Arm/AcpiSsdtCpuTopologyLibArm/SsdtCpuTopologyGenerator.c
>
> @@ -587,10 +587,10 @@ CreateAmlCpuFromProcHierarchy (
>
> return Status;
>
> }
>
>
>
> -/** Create a Cluster in the AML namespace.
>
> +/** Create a Processor Container in the AML namespace.
>
>
>
> Any CM_ARM_PROC_HIERARCHY_INFO object with the following flags is
>
> - assumed to be a cluster:
>
> + assumed to be a processor container:
>
> - EFI_ACPI_6_3_PPTT_PACKAGE_NOT_PHYSICAL
>
> - EFI_ACPI_6_3_PPTT_PROCESSOR_ID_INVALID
>
> - EFI_ACPI_6_3_PPTT_NODE_IS_NOT_LEAF
>
> @@ -605,13 +605,13 @@ CreateAmlCpuFromProcHierarchy (
>
> @param [in] Generator The SSDT Cpu Topology generator.
>
> @param [in] CfgMgrProtocol Pointer to the Configuration Manager
>
> Protocol Interface.
>
> - @param [in] ParentNode Parent node to attach the Cluster
>
> - node to.
>
> + @param [in] ParentNode Parent node to attach the processor
>
> + container node to.
>
> @param [in] ProcHierarchyNodeInfo CM_ARM_PROC_HIERARCHY_INFO object used
>
> to create the node.
>
> - @param [in] ClusterIndex Index used to generate the node name.
>
> - @param [out] ClusterNodePtr If success, contains the created Cluster
>
> - node.
>
> + @param [in] ProcContainerIndex Index used to generate the node name.
>
> + @param [out] ProcContainerNodePtr If success, contains the created processor
>
> + container node.
>
>
>
> @retval EFI_SUCCESS Success.
>
> @retval EFI_INVALID_PARAMETER Invalid parameter.
>
> @@ -620,43 +620,43 @@ CreateAmlCpuFromProcHierarchy (
>
> STATIC
>
> EFI_STATUS
>
> EFIAPI
>
> -CreateAmlCluster (
>
> +CreateAmlProcessorContainer (
>
> IN ACPI_CPU_TOPOLOGY_GENERATOR *Generator,
>
> IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
>
> IN AML_NODE_HANDLE ParentNode,
>
> IN CM_ARM_PROC_HIERARCHY_INFO *ProcHierarchyNodeInfo,
>
> - IN UINT32 ClusterIndex,
>
> - OUT AML_OBJECT_NODE_HANDLE *ClusterNodePtr
>
> + IN UINT32 ProcContainerIndex,
>
> + OUT AML_OBJECT_NODE_HANDLE *ProcContainerNodePtr
>
> )
>
> {
>
> EFI_STATUS Status;
>
> - AML_OBJECT_NODE_HANDLE ClusterNode;
>
> - CHAR8 AslNameCluster[AML_NAME_SEG_SIZE + 1];
>
> + AML_OBJECT_NODE_HANDLE ProcContainerNode;
>
> + CHAR8 AslNameProcContainer[AML_NAME_SEG_SIZE + 1];
>
>
>
> ASSERT (Generator != NULL);
>
> ASSERT (CfgMgrProtocol != NULL);
>
> ASSERT (ParentNode != NULL);
>
> ASSERT (ProcHierarchyNodeInfo != NULL);
>
> - ASSERT (ClusterNodePtr != NULL);
>
> + ASSERT (ProcContainerNodePtr != NULL);
>
>
>
> - Status = WriteAslName ('C', ClusterIndex, AslNameCluster);
>
> + Status = WriteAslName ('C', ProcContainerIndex, AslNameProcContainer);
>
> if (EFI_ERROR (Status)) {
>
> ASSERT (0);
>
> return Status;
>
> }
>
>
>
> - Status = AmlCodeGenDevice (AslNameCluster, ParentNode, &ClusterNode);
>
> + Status = AmlCodeGenDevice (AslNameProcContainer, ParentNode, &ProcContainerNode);
>
> if (EFI_ERROR (Status)) {
>
> ASSERT (0);
>
> return Status;
>
> }
>
>
>
> - // Use the ClusterIndex for the _UID value as there is no AcpiProcessorUid
>
> + // Use the ProcContainerIndex for the _UID value as there is no AcpiProcessorUid
>
> // and EFI_ACPI_6_3_PPTT_PROCESSOR_ID_INVALID is set for non-Cpus.
>
> Status = AmlCodeGenNameInteger (
>
> "_UID",
>
> - ClusterIndex,
>
> - ClusterNode,
>
> + ProcContainerIndex,
>
> + ProcContainerNode,
>
> NULL
>
> );
>
> if (EFI_ERROR (Status)) {
>
> @@ -667,7 +667,7 @@ CreateAmlCluster (
>
> Status = AmlCodeGenNameString (
>
> "_HID",
>
> ACPI_HID_PROCESSOR_CONTAINER_DEVICE,
>
> - ClusterNode,
>
> + ProcContainerNode,
>
> NULL
>
> );
>
> if (EFI_ERROR (Status)) {
>
> @@ -681,7 +681,7 @@ CreateAmlCluster (
>
> Status = CreateAmlLpiMethod (
>
> Generator,
>
> ProcHierarchyNodeInfo,
>
> - ClusterNode
>
> + ProcContainerNode
>
> );
>
> if (EFI_ERROR (Status)) {
>
> ASSERT (0);
>
> @@ -689,23 +689,25 @@ CreateAmlCluster (
>
> }
>
> }
>
>
>
> - *ClusterNodePtr = ClusterNode;
>
> + *ProcContainerNodePtr = ProcContainerNode;
>
>
>
> return Status;
>
> }
>
>
>
> /** Create an AML representation of the Cpu topology.
>
>
>
> - A cluster is by extension any non-leave device in the cpu topology.
>
> + A processor container is by extension any non-leave device in the cpu topology.
>
>
>
> - @param [in] Generator The SSDT Cpu Topology generator.
>
> - @param [in] CfgMgrProtocol Pointer to the Configuration Manager
>
> - Protocol Interface.
>
> - @param [in] NodeToken Token of the CM_ARM_PROC_HIERARCHY_INFO
>
> - currently handled.
>
> - Cannot be CM_NULL_TOKEN.
>
> - @param [in] ParentNode Parent node to attach the created
>
> - node to.
>
> + @param [in] Generator The SSDT Cpu Topology generator.
>
> + @param [in] CfgMgrProtocol Pointer to the Configuration Manager
>
> + Protocol Interface.
>
> + @param [in] NodeToken Token of the CM_ARM_PROC_HIERARCHY_INFO
>
> + currently handled.
>
> + Cannot be CM_NULL_TOKEN.
>
> + @param [in] ParentNode Parent node to attach the created
>
> + node to.
>
> + @param [in,out] ProcContainerIndex Pointer to the current processor container
>
> + index to be used as UID.
>
>
>
> @retval EFI_SUCCESS Success.
>
> @retval EFI_INVALID_PARAMETER Invalid parameter.
>
> @@ -718,14 +720,14 @@ CreateAmlCpuTopologyTree (
>
> IN ACPI_CPU_TOPOLOGY_GENERATOR *Generator,
>
> IN CONST EDKII_CONFIGURATION_MANAGER_PROTOCOL *CONST CfgMgrProtocol,
>
> IN CM_OBJECT_TOKEN NodeToken,
>
> - IN AML_NODE_HANDLE ParentNode
>
> + IN AML_NODE_HANDLE ParentNode,
>
> + IN OUT UINT32 *ProcContainerIndex
>
> )
>
> {
>
> EFI_STATUS Status;
>
> UINT32 Index;
>
> UINT32 CpuIndex;
>
> - UINT32 ClusterIndex;
>
> - AML_OBJECT_NODE_HANDLE ClusterNode;
>
> + AML_OBJECT_NODE_HANDLE ProcContainerNode;
>
>
>
> ASSERT (Generator != NULL);
>
> ASSERT (Generator->ProcNodeList != NULL);
>
> @@ -733,9 +735,9 @@ CreateAmlCpuTopologyTree (
>
> ASSERT (CfgMgrProtocol != NULL);
>
> ASSERT (NodeToken != CM_NULL_TOKEN);
>
> ASSERT (ParentNode != NULL);
>
> + ASSERT (ProcContainerIndex != NULL);
>
>
>
> - CpuIndex = 0;
>
> - ClusterIndex = 0;
>
> + CpuIndex = 0;
>
>
>
> for (Index = 0; Index < Generator->ProcNodeCount; Index++) {
>
> // Find the children of the CM_ARM_PROC_HIERARCHY_INFO
>
> @@ -770,7 +772,7 @@ CreateAmlCpuTopologyTree (
>
>
>
> CpuIndex++;
>
> } else {
>
> - // If this is not a Cpu, then this is a cluster.
>
> + // If this is not a Cpu, then this is a processor container.
>
>
>
> // Acpi processor Id for clusters is not handled.
>
> if ((Generator->ProcNodeList[Index].Flags & PPTT_PROCESSOR_MASK) !=
>
> @@ -785,13 +787,13 @@ CreateAmlCpuTopologyTree (
>
> return EFI_INVALID_PARAMETER;
>
> }
>
>
>
> - Status = CreateAmlCluster (
>
> + Status = CreateAmlProcessorContainer (
>
> Generator,
>
> CfgMgrProtocol,
>
> ParentNode,
>
> &Generator->ProcNodeList[Index],
>
> - ClusterIndex,
>
> - &ClusterNode
>
> + *ProcContainerIndex,
>
> + &ProcContainerNode
>
> );
>
> if (EFI_ERROR (Status)) {
>
> ASSERT (0);
>
> @@ -799,8 +801,8 @@ CreateAmlCpuTopologyTree (
>
> }
>
>
>
> // Nodes must have a unique name in the ASL namespace.
>
> - // Reset the Cpu index whenever we create a new Cluster.
>
> - ClusterIndex++;
>
> + // Reset the Cpu index whenever we create a new processor container.
>
> + (*ProcContainerIndex)++;
>
> CpuIndex = 0;
>
>
>
> // Recursively continue creating an AML tree.
>
> @@ -808,7 +810,8 @@ CreateAmlCpuTopologyTree (
>
> Generator,
>
> CfgMgrProtocol,
>
> Generator->ProcNodeList[Index].Token,
>
> - ClusterNode
>
> + ProcContainerNode,
>
> + ProcContainerIndex
>
> );
>
> if (EFI_ERROR (Status)) {
>
> ASSERT (0);
>
> @@ -845,6 +848,7 @@ CreateTopologyFromProcHierarchy (
>
> EFI_STATUS Status;
>
> UINT32 Index;
>
> UINT32 TopLevelProcNodeIndex;
>
> + UINT32 ProcContainerIndex;
>
>
>
> ASSERT (Generator != NULL);
>
> ASSERT (Generator->ProcNodeCount != 0);
>
> @@ -853,6 +857,7 @@ CreateTopologyFromProcHierarchy (
>
> ASSERT (ScopeNode != NULL);
>
>
>
> TopLevelProcNodeIndex = MAX_UINT32;
>
> + ProcContainerIndex = 0;
>
>
>
> Status = TokenTableInitialize (Generator, Generator->ProcNodeCount);
>
> if (EFI_ERROR (Status)) {
>
> @@ -887,7 +892,8 @@ CreateTopologyFromProcHierarchy (
>
> Generator,
>
> CfgMgrProtocol,
>
> Generator->ProcNodeList[TopLevelProcNodeIndex].Token,
>
> - ScopeNode
>
> + ScopeNode,
>
> + &ProcContainerIndex
>
> );
>
> if (EFI_ERROR (Status)) {
>
> ASSERT (0);
>
> @@ -908,7 +914,7 @@ exit_handler:
>
> /** Create the processor hierarchy AML tree from CM_ARM_GICC_INFO
>
> CM objects.
>
>
>
> - A cluster is by extension any non-leave device in the cpu topology.
>
> + A processor container is by extension any non-leave device in the cpu topology.
>
>
>
> @param [in] Generator The SSDT Cpu Topology generator.
>
> @param [in] CfgMgrProtocol Pointer to the Configuration Manager
>
next prev parent reply other threads:[~2022-08-18 17:18 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-18 16:47 [PATCH v2] DynamicTablesPkg: Fix nested processor containers Jeff Brasen
2022-08-18 17:17 ` Sami Mujawar [this message]
2022-09-01 14:22 ` [edk2-devel] " Sami Mujawar
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