mirror of https://github.com/acidanthera/audk.git
DynamicTablesPkg: AML code generation to add an _LPI state
Add AmlAddLpiState() to generates AML code to add an _LPI state
to an _LPI object created using AmlCreateLpiNode().
AmlAddLpiState increments the count of LPI states in the LPI
node by one, and adds the following package:
Package() {
MinResidency,
WorstCaseWakeLatency,
Flags,
ArchFlags,
ResCntFreq,
EnableParentState,
(GenericRegisterDescriptor != NULL) ? // Entry method. If a
ResourceTemplate(GenericRegisterDescriptor) : // Register is given,
Integer, // use it. Use the
// Integer otherwise
ResourceTemplate() { // NULL Residency
Register (SystemMemory, 0, 0, 0, 0) // Counter
},
ResourceTemplate() { // NULL Usage Counter
Register (SystemMemory, 0, 0, 0, 0)
},
"" // NULL State Name
},
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Signed-off-by: Pierre Gondois <Pierre.Gondois@arm.com>
This commit is contained in:
Pierre Gondois
mergify[bot]
parent
018a962d92
commit
a5e36ad9bc
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@ -716,6 +716,77 @@ AmlCreateLpiNode (
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OUT AML_OBJECT_NODE_HANDLE * NewLpiNode OPTIONAL
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);
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/** Add an _LPI state to a LPI node created using AmlCreateLpiNode ().
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AmlAddLpiState () increments the Count of LPI states in the LPI node by one,
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and adds the following package:
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Package() {
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MinResidency,
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WorstCaseWakeLatency,
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Flags,
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ArchFlags,
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ResCntFreq,
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EnableParentState,
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(GenericRegisterDescriptor != NULL) ? // Entry method. If a
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ResourceTemplate(GenericRegisterDescriptor) : // Register is given,
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Integer, // use it. Use the
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// Integer otherwise.
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ResourceTemplate() { // NULL Residency Counter
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Register (SystemMemory, 0, 0, 0, 0)
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},
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ResourceTemplate() { // NULL Usage Counter
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Register (SystemMemory, 0, 0, 0, 0)
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},
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"" // NULL State Name
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},
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Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".
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@ingroup CodeGenApis
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@param [in] MinResidency Minimum Residency.
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@param [in] WorstCaseWakeLatency Worst case wake-up latency.
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@param [in] Flags Flags.
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@param [in] ArchFlags Architectural flags.
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@param [in] ResCntFreq Residency Counter Frequency.
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@param [in] EnableParentState Enabled Parent State.
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@param [in] GenericRegisterDescriptor Entry Method.
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If not NULL, use this Register to
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describe the entry method address.
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@param [in] Integer Entry Method.
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If GenericRegisterDescriptor is NULL,
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take this value.
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@param [in] ResidencyCounterRegister If not NULL, use it to populate the
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residency counter register.
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@param [in] UsageCounterRegister If not NULL, use it to populate the
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usage counter register.
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@param [in] StateName If not NULL, use it to populate the
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state name.
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@param [in] LpiNode Lpi node created with the function
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AmlCreateLpiNode to which the new LPI
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state is appended.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
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**/
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EFI_STATUS
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EFIAPI
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AmlAddLpiState (
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IN UINT32 MinResidency,
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IN UINT32 WorstCaseWakeLatency,
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IN UINT32 Flags,
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IN UINT32 ArchFlags,
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IN UINT32 ResCntFreq,
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IN UINT32 EnableParentState,
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IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * GenericRegisterDescriptor, OPTIONAL
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IN UINT64 Integer, OPTIONAL
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IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * ResidencyCounterRegister, OPTIONAL
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IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * UsageCounterRegister, OPTIONAL
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IN CHAR8 * StateName, OPTIONAL
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IN AML_OBJECT_NODE_HANDLE LpiNode
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);
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// DEPRECATED APIS
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#ifndef DISABLE_NEW_DEPRECATED_INTERFACES
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@ -12,6 +12,7 @@
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#include <AmlCoreInterface.h>
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#include <AmlEncoding/Aml.h>
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#include <Api/AmlApiHelper.h>
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#include <CodeGen/AmlResourceDataCodeGen.h>
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#include <Tree/AmlNode.h>
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#include <Tree/AmlTree.h>
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@ -1574,3 +1575,461 @@ error_handler:
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}
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return Status;
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}
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/** Add an _LPI state to a LPI node created using AmlCreateLpiNode.
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AmlAddLpiState increments the Count of LPI states in the LPI node by one,
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and adds the following package:
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Package() {
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MinResidency,
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WorstCaseWakeLatency,
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Flags,
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ArchFlags,
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ResCntFreq,
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EnableParentState,
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(GenericRegisterDescriptor != NULL) ? // Entry method. If a
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ResourceTemplate(GenericRegisterDescriptor) : // Register is given,
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Integer, // use it. Use the
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// Integer otherwise.
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ResourceTemplate() { // NULL Residency Counter
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Register (SystemMemory, 0, 0, 0, 0)
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},
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ResourceTemplate() { // NULL Usage Counter
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Register (SystemMemory, 0, 0, 0, 0)
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},
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"" // NULL State Name
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},
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Cf ACPI 6.3 specification, s8.4.4 "Lower Power Idle States".
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@param [in] MinResidency Minimum Residency.
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@param [in] WorstCaseWakeLatency Worst case wake-up latency.
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@param [in] Flags Flags.
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@param [in] ArchFlags Architectural flags.
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@param [in] ResCntFreq Residency Counter Frequency.
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@param [in] EnableParentState Enabled Parent State.
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@param [in] GenericRegisterDescriptor Entry Method.
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If not NULL, use this Register to
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describe the entry method address.
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@param [in] Integer Entry Method.
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If GenericRegisterDescriptor is NULL,
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take this value.
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@param [in] ResidencyCounterRegister If not NULL, use it to populate the
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residency counter register.
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@param [in] UsageCounterRegister If not NULL, use it to populate the
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usage counter register.
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@param [in] StateName If not NULL, use it to populate the
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state name.
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@param [in] LpiNode Lpi node created with the function
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AmlCreateLpiNode to which the new LPI
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state is appended.
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@retval EFI_SUCCESS The function completed successfully.
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@retval EFI_INVALID_PARAMETER Invalid parameter.
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@retval EFI_OUT_OF_RESOURCES Failed to allocate memory.
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**/
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EFI_STATUS
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EFIAPI
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AmlAddLpiState (
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IN UINT32 MinResidency,
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IN UINT32 WorstCaseWakeLatency,
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IN UINT32 Flags,
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IN UINT32 ArchFlags,
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IN UINT32 ResCntFreq,
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IN UINT32 EnableParentState,
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IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * GenericRegisterDescriptor, OPTIONAL
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IN UINT64 Integer, OPTIONAL
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IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * ResidencyCounterRegister, OPTIONAL
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IN EFI_ACPI_6_3_GENERIC_ADDRESS_STRUCTURE * UsageCounterRegister, OPTIONAL
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IN CHAR8 * StateName, OPTIONAL
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IN AML_OBJECT_NODE_HANDLE LpiNode
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)
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{
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EFI_STATUS Status;
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AML_DATA_NODE_HANDLE RdNode;
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AML_OBJECT_NODE_HANDLE PackageNode;
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AML_OBJECT_NODE_HANDLE IntegerNode;
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AML_OBJECT_NODE_HANDLE StringNode;
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AML_OBJECT_NODE_HANDLE NewLpiPackageNode;
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AML_OBJECT_NODE_HANDLE ResourceTemplateNode;
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UINT32 Index;
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AML_OBJECT_NODE_HANDLE CountNode;
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UINT64 Count;
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if ((LpiNode == NULL) ||
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(AmlGetNodeType ((AML_NODE_HANDLE)LpiNode) != EAmlNodeObject) ||
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(!AmlNodeHasOpCode (LpiNode, AML_NAME_OP, 0))) {
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ASSERT (0);
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return EFI_INVALID_PARAMETER;
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}
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RdNode = 0;
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StringNode = NULL;
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IntegerNode = NULL;
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ResourceTemplateNode = NULL;
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// AmlCreateLpiNode () created a LPI container such as:
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// Name (_LPI, Package (
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// 0, // Revision
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// 1, // LevelId
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// 0 // Count
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// ))
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// Get the LPI container, a PackageOp object node stored as the 2nd fixed
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// argument (i.e. index 1) of LpiNode.
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PackageNode = (AML_OBJECT_NODE_HANDLE)AmlGetFixedArgument (
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LpiNode,
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EAmlParseIndexTerm1
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);
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if ((PackageNode == NULL) ||
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(AmlGetNodeType ((AML_NODE_HANDLE)PackageNode) != EAmlNodeObject) ||
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(!AmlNodeHasOpCode (PackageNode, AML_PACKAGE_OP, 0))) {
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ASSERT (0);
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return EFI_INVALID_PARAMETER;
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}
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CountNode = NULL;
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// The third variable argument is the LPI Count node.
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for (Index = 0; Index < 3; Index++) {
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CountNode = (AML_OBJECT_NODE_HANDLE)AmlGetNextVariableArgument (
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(AML_NODE_HANDLE)PackageNode,
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(AML_NODE_HANDLE)CountNode
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);
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if (CountNode == NULL) {
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ASSERT (0);
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return EFI_INVALID_PARAMETER;
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}
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}
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Status = AmlNodeGetIntegerValue (CountNode, &Count);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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return Status;
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}
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Status = AmlUpdateInteger (CountNode, Count + 1);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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return Status;
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}
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Status = AmlCodeGenPackage (&NewLpiPackageNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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return Status;
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}
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// MinResidency
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Status = AmlCodeGenInteger (MinResidency, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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// WorstCaseWakeLatency
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Status = AmlCodeGenInteger (WorstCaseWakeLatency, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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// Flags
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Status = AmlCodeGenInteger (Flags, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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// ArchFlags
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Status = AmlCodeGenInteger (ArchFlags, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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// ResCntFreq
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Status = AmlCodeGenInteger (ResCntFreq, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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// EnableParentState
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Status = AmlCodeGenInteger (EnableParentState, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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// Entry Method
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if (GenericRegisterDescriptor != NULL) {
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// Entry Method: As a Register resource data
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Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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ResourceTemplateNode = NULL;
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goto error_handler;
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}
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Status = AmlCodeGenRdRegister (
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GenericRegisterDescriptor->AddressSpaceId,
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GenericRegisterDescriptor->RegisterBitWidth,
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GenericRegisterDescriptor->RegisterBitOffset,
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GenericRegisterDescriptor->Address,
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GenericRegisterDescriptor->AccessSize,
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NULL,
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&RdNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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RdNode = NULL;
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goto error_handler;
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}
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Status = AmlAppendRdNode (ResourceTemplateNode, RdNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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RdNode = NULL;
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)ResourceTemplateNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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ResourceTemplateNode = NULL;
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} else {
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// Entry Method: As an integer
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Status = AmlCodeGenInteger (Integer, &IntegerNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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IntegerNode = NULL;
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goto error_handler;
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}
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)IntegerNode
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);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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goto error_handler;
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}
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IntegerNode = NULL;
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}
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// Residency Counter Register.
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Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
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ResourceTemplateNode = NULL;
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goto error_handler;
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}
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if (ResidencyCounterRegister != NULL) {
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Status = AmlCodeGenRdRegister (
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ResidencyCounterRegister->AddressSpaceId,
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ResidencyCounterRegister->RegisterBitWidth,
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ResidencyCounterRegister->RegisterBitOffset,
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ResidencyCounterRegister->Address,
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ResidencyCounterRegister->AccessSize,
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NULL,
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&RdNode
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);
|
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} else {
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Status = AmlCodeGenRdRegister (
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EFI_ACPI_6_4_SYSTEM_MEMORY,
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0,
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0,
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0,
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0,
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NULL,
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&RdNode
|
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);
|
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}
|
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if (EFI_ERROR (Status)) {
|
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ASSERT (0);
|
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RdNode = NULL;
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goto error_handler;
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}
|
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|
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Status = AmlAppendRdNode (ResourceTemplateNode, RdNode);
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if (EFI_ERROR (Status)) {
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ASSERT (0);
|
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goto error_handler;
|
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}
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RdNode = NULL;
|
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|
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Status = AmlVarListAddTail (
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(AML_NODE_HANDLE)NewLpiPackageNode,
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(AML_NODE_HANDLE)ResourceTemplateNode
|
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);
|
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if (EFI_ERROR (Status)) {
|
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ASSERT (0);
|
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goto error_handler;
|
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}
|
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ResourceTemplateNode = NULL;
|
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|
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// Usage Counter Register.
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Status = AmlCodeGenResourceTemplate (&ResourceTemplateNode);
|
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if (EFI_ERROR (Status)) {
|
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ASSERT (0);
|
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ResourceTemplateNode = NULL;
|
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goto error_handler;
|
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}
|
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if (UsageCounterRegister != NULL) {
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Status = AmlCodeGenRdRegister (
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UsageCounterRegister->AddressSpaceId,
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UsageCounterRegister->RegisterBitWidth,
|
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UsageCounterRegister->RegisterBitOffset,
|
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UsageCounterRegister->Address,
|
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UsageCounterRegister->AccessSize,
|
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NULL,
|
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&RdNode
|
||||
);
|
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} else {
|
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Status = AmlCodeGenRdRegister (
|
||||
EFI_ACPI_6_4_SYSTEM_MEMORY,
|
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0,
|
||||
0,
|
||||
0,
|
||||
0,
|
||||
NULL,
|
||||
&RdNode
|
||||
);
|
||||
}
|
||||
if (EFI_ERROR (Status)) {
|
||||
ASSERT (0);
|
||||
RdNode = NULL;
|
||||
goto error_handler;
|
||||
}
|
||||
|
||||
Status = AmlAppendRdNode (ResourceTemplateNode, RdNode);
|
||||
if (EFI_ERROR (Status)) {
|
||||
ASSERT (0);
|
||||
goto error_handler;
|
||||
}
|
||||
RdNode = NULL;
|
||||
|
||||
Status = AmlVarListAddTail (
|
||||
(AML_NODE_HANDLE)NewLpiPackageNode,
|
||||
(AML_NODE_HANDLE)ResourceTemplateNode
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
ASSERT (0);
|
||||
goto error_handler;
|
||||
}
|
||||
ResourceTemplateNode = NULL;
|
||||
|
||||
// State name.
|
||||
if (UsageCounterRegister != NULL) {
|
||||
Status = AmlCodeGenString (StateName, &StringNode);
|
||||
} else {
|
||||
Status = AmlCodeGenString ("", &StringNode);
|
||||
}
|
||||
if (EFI_ERROR (Status)) {
|
||||
ASSERT (0);
|
||||
StringNode = NULL;
|
||||
goto error_handler;
|
||||
}
|
||||
Status = AmlVarListAddTail (
|
||||
(AML_NODE_HANDLE)NewLpiPackageNode,
|
||||
(AML_NODE_HANDLE)StringNode
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
ASSERT (0);
|
||||
goto error_handler;
|
||||
}
|
||||
StringNode = NULL;
|
||||
|
||||
// Add the new LPI state to the LpiNode.
|
||||
Status = AmlVarListAddTail (
|
||||
(AML_NODE_HANDLE)PackageNode,
|
||||
(AML_NODE_HANDLE)NewLpiPackageNode
|
||||
);
|
||||
if (EFI_ERROR (Status)) {
|
||||
ASSERT (0);
|
||||
goto error_handler;
|
||||
}
|
||||
|
||||
return Status;
|
||||
|
||||
error_handler:
|
||||
if (RdNode != NULL) {
|
||||
AmlDeleteTree ((AML_NODE_HANDLE)RdNode);
|
||||
}
|
||||
if (NewLpiPackageNode != NULL) {
|
||||
AmlDeleteTree ((AML_NODE_HANDLE)NewLpiPackageNode);
|
||||
}
|
||||
if (StringNode != NULL) {
|
||||
AmlDeleteTree ((AML_NODE_HANDLE)StringNode);
|
||||
}
|
||||
if (IntegerNode != NULL) {
|
||||
AmlDeleteTree ((AML_NODE_HANDLE)IntegerNode);
|
||||
}
|
||||
if (ResourceTemplateNode != NULL) {
|
||||
AmlDeleteTree ((AML_NODE_HANDLE)ResourceTemplateNode);
|
||||
}
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue