linux-kernel - [RFC PATCH 0/4] x86, mwaitt: introduce AMD mwaitt support

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Message-ID: <1432022472-2224-1-git-send-email-ray.huang@amd.com>
Date:	Tue, 19 May 2015 16:01:08 +0800
From:	Huang Rui <ray.huang@....com>
To:	Borislav Petkov <bp@...e.de>, Len Brown <lenb@...nel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Thomas Gleixner <tglx@...utronix.de>
CC:	<x86@...nel.org>, <linux-kernel@...r.kernel.org>,
	Fengguang Wu <fengguang.wu@...el.com>,
	Aaron Lu <aaron.lu@...el.com>, Tony Li <tony.li@....com>,
	Huang Rui <ray.huang@....com>
Subject: [RFC PATCH 0/4] x86, mwaitt: introduce AMD mwaitt support

Hi,

This patch set introduces a new instruction support on AMD Carrizo (Family
15h, Model 60h-6fh). It adds mwaitx idle function with a configurable
timer. The user can configure the idle method and timer value via the idle
kernel parameter.

Some discussions of the background, please see:
http://marc.info/?l=linux-kernel&m=143202042530498&w=2
http://marc.info/?l=linux-kernel&m=143161327003541&w=2

They are rebased on tip/sched/core.

Thanks,
Rui

Huang Rui (4):
  x86, mwaitt: add monitorx and mwaitx instruction
  x86, mwaitt: introduce mwaitx idle with a configurable timer
  x86, mwaitt: add document to describe mwaitx
  x86, mwait: fix redundant comment

 Documentation/kernel-parameters.txt | 10 ++++-
 arch/x86/include/asm/cpufeature.h   |  1 +
 arch/x86/include/asm/mwait.h        | 27 +++++++++++++
 arch/x86/include/asm/processor.h    |  2 +-
 arch/x86/kernel/process.c           | 81 ++++++++++++++++++++++++++++++++++++-
 5 files changed, 118 insertions(+), 3 deletions(-)

-- 
2.1.0

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