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Date: Thu, 31 Jan 2013 14:51:38 -0800 From: Andi Kleen <andi@...stfloor.org> To: mingo@...nel.org Cc: linux-kernel@...r.kernel.org, a.p.zijlstra@...llo.nl, akpm@...ux-foundation.org, acme@...hat.com, eranian@...gle.com, jolsa@...hat.com, namhyung@...nel.org Subject: Basic perf PMU support for Haswell v2 This is based on v7 of the full Haswell PMU support, but ported to the latest perf/core and stripped down to the "basic support" as requested. I consider all of this basic support for Haswell usage. although it's a bit more than what you need if you never use -e cpu// or -b options. I decided to include LBRs in the basic support. Contains support for: - Basic Haswell PMU and PEBS support - Late unmasking of the PMI - Support for wide counters - New TSX counter flags, exported as sysfs attributes - Support for checkpointed counters. - New LBR flags, exported as new flags with tools support Available from git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc hsw/pmu5-basics For more details on the Haswell PMU please see the SDM (Vol 3A, Chapter 19.2) http://www.intel.com/content/www/us/en/processors/architectures-software-developer-manuals.html For more details on TSX please see http://halobates.de/adding-lock-elision-to-linux.pdf or next week's LWN. v2: Addressed Stephane's feedback. See individual patches for details. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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