[lkml]   [2017]   [Sep]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subject[PATCH 0/3] x86/smpboot: Cleanup logical package ID
Andi posted two patches to clean up the logical package ID, and I posted a
bug fix for systems which boot with less than than the maximum core count.
If I take his changes into account the code base ends up with a significant
cleanup. I am reposting his patches here.

I boot tested this using max_cpus and nr_cpus, as well as booting on
systems which would panic without the fix in 3/3.


Cleanup the logical package ID code by storing the logical package ID in
the cpuinfo_x86 struct and calculating the maximum logical package ID
after all the CPUs have been enumerated.

Signed-off-by: Prarit Bhargava <>

Andi Kleen (2):
perf/x86/intel/uncore: Cache logical pkg id in uncore driver
x86/topology: Avoid wasting 128k for package id array

Prarit Bhargava (1):
x86/smpboot: Fix __max_logical_packages estimate

arch/x86/events/intel/uncore.c | 1 +
arch/x86/events/intel/uncore.h | 1 +
arch/x86/events/intel/uncore_snbep.c | 2 +-
arch/x86/include/asm/processor.h | 6 ++-
arch/x86/kernel/smpboot.c | 100 +++++++++--------------------------
5 files changed, 33 insertions(+), 77 deletions(-)


 \ /
  Last update: 2017-09-08 21:58    [W:0.017 / U:3.628 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site