From: Prarit Bhargava <prarit@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: kan.liang@intel.com, x86@kernel.org, andi@firstfloor.org,
peterz@infradead.org, Prarit Bhargava <prarit@redhat.com>
Subject: [PATCH 0/3] x86/smpboot: Cleanup logical package ID
Date: Fri, 8 Sep 2017 15:57:45 -0400 [thread overview]
Message-ID: <1504900668-13270-1-git-send-email-prarit@redhat.com> (raw)
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@redhat.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
next reply other threads:[~2017-09-08 19:58 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-08 19:57 Prarit Bhargava [this message]
2017-09-08 19:57 ` [PATCH 1/3] perf/x86/intel/uncore: Cache logical pkg id in uncore driver Prarit Bhargava
2017-09-08 19:57 ` [PATCH 2/3] x86/topology: Avoid wasting 128k for package id array Prarit Bhargava
2017-09-08 19:57 ` [PATCH 3/3] x86/smpboot: Fix __max_logical_packages estimate Prarit Bhargava
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