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| author | Peter Zijlstra <[email protected]> | 2016-03-25 14:52:34 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2016-03-29 08:45:04 +0000 |
| commit | ee6825c80e870fff1a370c718ec77022ade0889b (patch) | |
| tree | ea5476978095b97d911d00e5a21c1c769c7f401a /lib/string_helpers.c | |
| parent | Linux 4.6-rc1 (diff) | |
| download | kernel-ee6825c80e870fff1a370c718ec77022ade0889b.tar.gz kernel-ee6825c80e870fff1a370c718ec77022ade0889b.zip | |
x86/topology: Fix AMD core count
It turns out AMD gets x86_max_cores wrong when there are compute
units.
The issue is that Linux assumes:
nr_logical_cpus = nr_cores * nr_siblings
But AMD reports its CU unit as 2 cores, but then sets num_smp_siblings
to 2 as well.
Boris: fixup ras/mce_amd_inj.c too, to compute the Node Base Core
properly, according to the new nomenclature.
Fixes: 1f12e32f4cd5 ("x86/topology: Create logical package id")
Reported-by: Xiong Zhou <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Cc: Andreas Herrmann <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Diffstat (limited to 'lib/string_helpers.c')
0 files changed, 0 insertions, 0 deletions