Commit a268b5f1 authored by Borislav Petkov's avatar Borislav Petkov Committed by Ingo Molnar
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x86/topology: Document cpu_llc_id 



It means different things on Intel and AMD so write it down so that
there's no confusion.

Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yazen Ghannam <yazen.ghannam@amd.com>
Link: http://lkml.kernel.org/r/20161117094557.jm6hwzdd52h7iwnj@pd.tnic


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 59107e2f

Documentation/x86/topology.txt

+9 −0
Original line number Original line Diff line number Diff line
@@ -63,6 +63,15 @@ The topology of a system is described in the units of: 
    The maximum possible number of packages in the system. Helpful for per

    The maximum possible number of packages in the system. Helpful for per

    package facilities to preallocate per package information.

    package facilities to preallocate per package information.





  - cpu_llc_id:



    A per-CPU variable containing:

    - On Intel, the first APIC ID of the list of CPUs sharing the Last Level

    Cache



    - On AMD, the Node ID or Core Complex ID containing the Last Level

    Cache. In general, it is a number identifying an LLC uniquely on the

    system.





* Cores:

* Cores: