linux-kernel - [PATCH v4 0/2] powercap/rapl: reduce ipi calls and misc clean up

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Message-Id: <1455914253-18138-1-git-send-email-jacob.jun.pan@linux.intel.com>
Date:	Fri, 19 Feb 2016 12:37:31 -0800
From:	Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:	LKML <linux-kernel@...r.kernel.org>,
	Rafael Wysocki <rafael.j.wysocki@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linux PM <linux-pm@...r.kernel.org>
Cc:	Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
	Peter Zijlstra <peterz@...radead.org>,
	"David S. Miller" <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: [PATCH v4 0/2] powercap/rapl: reduce ipi calls and misc clean up

Changes since V3:
	- Avoid for_each_online_cpu() search for per package MSR access. This
	  is achieved by tracking a per package lead cpu via cpumask_xx() calls.
	  (suggested by Thomas Gleixner <tglx@...utronix.de>)
	- Add direct reference of RAPL package for each RAPL domain.

This patch optimize remote IPI calls for MSR access.

Jacob Pan (2):
  cpumask: export cpumask_any_but
  powercap/rapl: reduce ipi calls

 drivers/powercap/intel_rapl.c | 224 ++++++++++++++++++++++--------------------
 lib/cpumask.c                 |   1 +
 2 files changed, 119 insertions(+), 106 deletions(-)

-- 
1.9.1