GetProcessorLocation2ByApicId() extracts the
package/die/tile/module/core/thread ID from the initial APIC ID.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ray Ni <ray...@intel.com>
Cc: Eric Dong <eric.d...@intel.com>
---
UefiCpuPkg/Include/Library/LocalApicLib.h | 29 +++-
.../Library/BaseXApicLib/BaseXApicLib.c | 125 +++++++++++++++++-
.../BaseXApicX2ApicLib/BaseXApicX2ApicLib.c | 125 +++++++++++++++++-
3 files changed, 276 insertions(+), 3 deletions(-)
diff --git a/UefiCpuPkg/Include/Library/LocalApicLib.h
b/UefiCpuPkg/Include/Library/LocalApicLib.h
index ad1c26df60..ffe60c56fc 100644
--- a/UefiCpuPkg/Include/Library/LocalApicLib.h
+++ b/UefiCpuPkg/Include/Library/LocalApicLib.h
@@ -4,7 +4,7 @@
Local APIC library assumes local APIC is enabled. It does not
handles cases where local APIC is disabled.
- Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2010 - 2019, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -432,5 +432,32 @@ GetProcessorLocationByApicId (
OUT UINT32 *Thread OPTIONAL
);
+/**
+ Get Package ID/Module ID/Tile ID/Die ID/Core ID/Thread ID of a processor.
+
+ The algorithm assumes the target system has symmetry across physical
+ package boundaries with respect to the number of threads per core, number of
+ cores per module, number of modules per tile, number of tiles per die, number
+ of dies per package.
+
+ @param[in] InitialApicId Initial APIC ID of the target logical processor.
+ @param[out] Package Returns the processor package ID.
+ @param[out] Die Returns the processor die ID.
+ @param[out] Tile Returns the processor tile ID.
+ @param[out] Module Returns the processor module ID.
+ @param[out] Core Returns the processor core ID.
+ @param[out] Thread Returns the processor thread ID.
+**/
+VOID
+EFIAPI
+GetProcessorLocation2ByApicId (
+ IN UINT32 InitialApicId,
+ OUT UINT32 *Package OPTIONAL,
+ OUT UINT32 *Die OPTIONAL,
+ OUT UINT32 *Tile OPTIONAL,
+ OUT UINT32 *Module OPTIONAL,
+ OUT UINT32 *Core OPTIONAL,
+ OUT UINT32 *Thread OPTIONAL
+ );
#endif
diff --git a/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
b/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
index 7d66d89dfd..1f994c81cf 100644
--- a/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
+++ b/UefiCpuPkg/Library/BaseXApicLib/BaseXApicLib.c
@@ -3,7 +3,7 @@
This local APIC library instance supports xAPIC mode only.
- Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2010 - 2019, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017, AMD Inc. All rights reserved.<BR>
This program and the accompanying materials
@@ -1156,3 +1156,126 @@ GetProcessorLocationByApicId (
*Package = (InitialApicId >> (ThreadBits + CoreBits));
}
}
+
+/**
+ Get Package ID/Die ID/Tile ID/Module ID/Core ID/Thread ID of a processor.
+
+ The algorithm assumes the target system has symmetry across physical
+ package boundaries with respect to the number of threads per core, number of
+ cores per module, number of modules per tile, number of tiles per die, number
+ of dies per package.
+
+ @param[in] InitialApicId Initial APIC ID of the target logical processor.
+ @param[out] Package Returns the processor package ID.
+ @param[out] Die Returns the processor die ID.
+ @param[out] Tile Returns the processor tile ID.
+ @param[out] Module Returns the processor module ID.
+ @param[out] Core Returns the processor core ID.
+ @param[out] Thread Returns the processor thread ID.
+**/
+VOID
+EFIAPI
+GetProcessorLocation2ByApicId (
+ IN UINT32 InitialApicId,
+ OUT UINT32 *Package OPTIONAL,
+ OUT UINT32 *Die OPTIONAL,
+ OUT UINT32 *Tile OPTIONAL,
+ OUT UINT32 *Module OPTIONAL,
+ OUT UINT32 *Core OPTIONAL,
+ OUT UINT32 *Thread OPTIONAL
+ )
+{
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX V2ExtendedTopologyEax;
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX V2ExtendedTopologyEcx;
+ UINT32 MaxStandardCpuIdIndex;
+ UINT32 Index;
+ UINTN LevelType;
+ UINT32
Bits[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 2];
+ UINT32
*Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 2];
+
+ for (LevelType = 0; LevelType < ARRAY_SIZE (Bits); LevelType++) {
+ Bits[LevelType] = 0;
+ }
+
+ //
+ // Get max index of CPUID
+ //
+ AsmCpuid (CPUID_SIGNATURE, &MaxStandardCpuIdIndex, NULL, NULL, NULL);
+ if (MaxStandardCpuIdIndex < CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION) {
+ if (Die != NULL) {
+ *Die = 0;
+ }
+ if (Tile != NULL) {
+ *Tile = 0;
+ }
+ if (Module != NULL) {
+ *Module = 0;
+ }
+ GetProcessorLocationByApicId (InitialApicId, Package, Core, Thread);
+ return;
+ }
+
+ //
+ // If the V2 extended topology enumeration leaf is available, it
+ // is the preferred mechanism for enumerating topology.
+ //
+ for (Index = 0; ; Index++) {
+ AsmCpuidEx(
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
+ Index,
+ &V2ExtendedTopologyEax.Uint32,
+ NULL,
+ &V2ExtendedTopologyEcx.Uint32,
+ NULL
+ );
+
+ LevelType = V2ExtendedTopologyEcx.Bits.LevelType;
+
+ //
+ // first level reported should be SMT.
+ //
+ ASSERT ((Index != 0) || (LevelType ==
CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_SMT));
+ if (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID) {
+ break;
+ }
+ ASSERT (LevelType < ARRAY_SIZE (Bits));
+ Bits[LevelType] = V2ExtendedTopologyEax.Bits.BitsNum;
+ }
+
+ for (LevelType = CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_CORE;
LevelType < ARRAY_SIZE (Bits); LevelType++) {
+ //
+ // If there are more levels between level-1 (low-level) and level-2
(high-level), the unknown levels will be ignored
+ // and treated as an extension of the last known level (i.e., level-1 in
this case).
+ //
+ if (Bits[LevelType] == 0) {
+ Bits[LevelType] = Bits[LevelType - 1];
+ }
+ }
+
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 1] =
Package;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE ] = Die;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_TILE ] = Tile;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_MODULE ] = Module;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_CORE ] = Core;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_SMT ] = Thread;
+
+ Bits[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 1] = 32;
+
+ for ( LevelType = CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_SMT
+ ; LevelType <= CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 1
+ ; LevelType ++
+ ) {
+ if (Location[LevelType] != NULL) {
+ //
+ // Bits[i] holds the number of bits to shift right on x2APIC ID to get a
unique
+ // topology ID of the next level type.
+ //
+ *Location[LevelType] = InitialApicId >> Bits[LevelType - 1];
+
+ //
+ // Bits[i] - Bits[i-1] holds the number of bits for the next ONE level
type.
+ //
+ *Location[LevelType] &= (1 << (Bits[LevelType] - Bits[LevelType - 1])) -
1;
+ }
+ }
+}
diff --git a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
index 6b89faf3df..7450b194b6 100644
--- a/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
+++ b/UefiCpuPkg/Library/BaseXApicX2ApicLib/BaseXApicX2ApicLib.c
@@ -4,7 +4,7 @@
This local APIC library instance supports x2APIC capable processors
which have xAPIC and x2APIC modes.
- Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2010 - 2019, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2017, AMD Inc. All rights reserved.<BR>
This program and the accompanying materials
@@ -1251,3 +1251,126 @@ GetProcessorLocationByApicId (
*Package = (InitialApicId >> (ThreadBits + CoreBits));
}
}
+
+/**
+ Get Package ID/Die ID/Tile ID/Module ID/Core ID/Thread ID of a processor.
+
+ The algorithm assumes the target system has symmetry across physical
+ package boundaries with respect to the number of threads per core, number of
+ cores per module, number of modules per tile, number of tiles per die, number
+ of dies per package.
+
+ @param[in] InitialApicId Initial APIC ID of the target logical processor.
+ @param[out] Package Returns the processor package ID.
+ @param[out] Die Returns the processor die ID.
+ @param[out] Tile Returns the processor tile ID.
+ @param[out] Module Returns the processor module ID.
+ @param[out] Core Returns the processor core ID.
+ @param[out] Thread Returns the processor thread ID.
+**/
+VOID
+EFIAPI
+GetProcessorLocation2ByApicId (
+ IN UINT32 InitialApicId,
+ OUT UINT32 *Package OPTIONAL,
+ OUT UINT32 *Die OPTIONAL,
+ OUT UINT32 *Tile OPTIONAL,
+ OUT UINT32 *Module OPTIONAL,
+ OUT UINT32 *Core OPTIONAL,
+ OUT UINT32 *Thread OPTIONAL
+ )
+{
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_EAX V2ExtendedTopologyEax;
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_ECX V2ExtendedTopologyEcx;
+ UINT32 MaxStandardCpuIdIndex;
+ UINT32 Index;
+ UINTN LevelType;
+ UINT32
Bits[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 2];
+ UINT32
*Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 2];
+
+ for (LevelType = 0; LevelType < ARRAY_SIZE (Bits); LevelType++) {
+ Bits[LevelType] = 0;
+ }
+
+ //
+ // Get max index of CPUID
+ //
+ AsmCpuid (CPUID_SIGNATURE, &MaxStandardCpuIdIndex, NULL, NULL, NULL);
+ if (MaxStandardCpuIdIndex < CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION) {
+ if (Die != NULL) {
+ *Die = 0;
+ }
+ if (Tile != NULL) {
+ *Tile = 0;
+ }
+ if (Module != NULL) {
+ *Module = 0;
+ }
+ GetProcessorLocationByApicId (InitialApicId, Package, Core, Thread);
+ return;
+ }
+
+ //
+ // If the V2 extended topology enumeration leaf is available, it
+ // is the preferred mechanism for enumerating topology.
+ //
+ for (Index = 0; ; Index++) {
+ AsmCpuidEx(
+ CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION,
+ Index,
+ &V2ExtendedTopologyEax.Uint32,
+ NULL,
+ &V2ExtendedTopologyEcx.Uint32,
+ NULL
+ );
+
+ LevelType = V2ExtendedTopologyEcx.Bits.LevelType;
+
+ //
+ // first level reported should be SMT.
+ //
+ ASSERT ((Index != 0) || (LevelType ==
CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_SMT));
+ if (LevelType == CPUID_EXTENDED_TOPOLOGY_LEVEL_TYPE_INVALID) {
+ break;
+ }
+ ASSERT (LevelType < ARRAY_SIZE (Bits));
+ Bits[LevelType] = V2ExtendedTopologyEax.Bits.BitsNum;
+ }
+
+ for (LevelType = CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_CORE;
LevelType < ARRAY_SIZE (Bits); LevelType++) {
+ //
+ // If there are more levels between level-1 (low-level) and level-2
(high-level), the unknown levels will be ignored
+ // and treated as an extension of the last known level (i.e., level-1 in
this case).
+ //
+ if (Bits[LevelType] == 0) {
+ Bits[LevelType] = Bits[LevelType - 1];
+ }
+ }
+
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 1] =
Package;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE ] = Die;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_TILE ] = Tile;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_MODULE ] = Module;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_CORE ] = Core;
+ Location[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_SMT ] = Thread;
+
+ Bits[CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 1] = 32;
+
+ for ( LevelType = CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_SMT
+ ; LevelType <= CPUID_V2_EXTENDED_TOPOLOGY_ENUMERATION_LEVEL_TYPE_DIE + 1
+ ; LevelType ++
+ ) {
+ if (Location[LevelType] != NULL) {
+ //
+ // Bits[i] holds the number of bits to shift right on x2APIC ID to get a
unique
+ // topology ID of the next level type.
+ //
+ *Location[LevelType] = InitialApicId >> Bits[LevelType - 1];
+
+ //
+ // Bits[i] - Bits[i-1] holds the number of bits for the next ONE level
type.
+ //
+ *Location[LevelType] &= (1 << (Bits[LevelType] - Bits[LevelType - 1])) -
1;
+ }
+ }
+}
--
2.21.0.windows.1
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