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UefiCpuPkg/LocalApicLib: Add GetProcessorLocation2ByApicId() API

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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.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Zhiqiang Qin <zhiqiang.qin@intel.com>
This commit is contained in:
Ray Ni
2019-03-25 17:31:09 +08:00
parent 079141ebe7
commit 7f33d4f228
3 changed files with 276 additions and 3 deletions
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29
UefiCpuPkg/Include/Library/LocalApicLib.h
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@@ -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