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Date: Tue, 26 Sep 2017 08:53:23 -0400 From: Prarit Bhargava <prarit@...hat.com> To: linux-kernel@...r.kernel.org Cc: Prarit Bhargava <prarit@...hat.com>, Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org, Peter Zijlstra <peterz@...radead.org>, Andi Kleen <ak@...ux.intel.com>, Dave Hansen <dave.hansen@...el.com>, Piotr Luc <piotr.luc@...el.com>, Kan Liang <kan.liang@...el.com>, Borislav Petkov <bp@...e.de>, Stephane Eranian <eranian@...gle.com>, Arvind Yadav <arvind.yadav.cs@...il.com>, Andy Lutomirski <luto@...nel.org>, Christian Borntraeger <borntraeger@...ibm.com>, "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, Tom Lendacky <thomas.lendacky@....com>, He Chen <he.chen@...ux.intel.com>, Mathias Krause <minipli@...glemail.com>, Tim Chen <tim.c.chen@...ux.intel.com>, Vitaly Kuznetsov <vkuznets@...hat.com> Subject: [PATCH 0/3 v2 RESEND] x86/smpboot: Cleanup logical package ID Sending to wider audience. I originally sent this to only the people Andi had cc'd. 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 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> Cc: Thomas Gleixner <tglx@...utronix.de> Cc: Ingo Molnar <mingo@...hat.com> Cc: "H. Peter Anvin" <hpa@...or.com> Cc: x86@...nel.org Cc: Peter Zijlstra <peterz@...radead.org> Cc: Andi Kleen <ak@...ux.intel.com> Cc: Dave Hansen <dave.hansen@...el.com> Cc: Piotr Luc <piotr.luc@...el.com> Cc: Kan Liang <kan.liang@...el.com> Cc: Borislav Petkov <bp@...e.de> Cc: Stephane Eranian <eranian@...gle.com> Cc: Prarit Bhargava <prarit@...hat.com> Cc: Arvind Yadav <arvind.yadav.cs@...il.com> Cc: Andy Lutomirski <luto@...nel.org> Cc: Christian Borntraeger <borntraeger@...ibm.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com> Cc: Tom Lendacky <thomas.lendacky@....com> Cc: He Chen <he.chen@...ux.intel.com> Cc: Mathias Krause <minipli@...glemail.com> Cc: Tim Chen <tim.c.chen@...ux.intel.com> Cc: Vitaly Kuznetsov <vkuznets@...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 | 113 +++++++++++------------------------ 5 files changed, 42 insertions(+), 81 deletions(-) -- 1.8.5.5
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