linux-kernel - [PATCH 0/3] x86/smpboot: Cleanup logical package ID

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Date:   Fri,  8 Sep 2017 15:57:45 -0400
From:   Prarit Bhargava <prarit@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     kan.liang@...el.com, x86@...nel.org, andi@...stfloor.org,
        peterz@...radead.org, Prarit Bhargava <prarit@...hat.com>
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.

---8<---

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 <prarit@...hat.com>

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(-)

-- 
1.8.5.5