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Groups > linux.kernel > #1289978
| From | Jacob Pan <jacob.jun.pan@linux.intel.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 0/2] combine remote cpu msr access |
| Date | 2015-12-11 23:50 +0100 |
| Message-ID | <qEEFI-29G-15@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
IPI calls to access MSRs on remote CPUs are expensive. So add a lib call for read/modify/write access and use it in Intel RAPL driver. Jacob Pan (2): x86/msr: add on cpu read/modify/write function powercap/rapl: reduce ipi calls arch/x86/include/asm/msr.h | 24 +++++++++++++++ arch/x86/lib/msr-smp.c | 47 ++++++++++++++++++++++++++++ drivers/powercap/intel_rapl.c | 71 ++++++++++++++++++++++--------------------- 3 files changed, 108 insertions(+), 34 deletions(-) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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[PATCH 0/2] combine remote cpu msr access Jacob Pan <jacob.jun.pan@linux.intel.com> - 2015-12-11 23:50 +0100
[PATCH 2/2] powercap/rapl: reduce ipi calls Jacob Pan <jacob.jun.pan@linux.intel.com> - 2015-12-11 23:50 +0100
[PATCH 1/2] x86/msr: add on cpu read/modify/write function Jacob Pan <jacob.jun.pan@linux.intel.com> - 2015-12-11 23:50 +0100
Re: [PATCH 1/2] x86/msr: add on cpu read/modify/write function Thomas Gleixner <tglx@linutronix.de> - 2015-12-20 14:40 +0100
Re: [PATCH 1/2] x86/msr: add on cpu read/modify/write function Borislav Petkov <bp@alien8.de> - 2015-12-20 16:30 +0100
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