From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jacob Pan Subject: [PATCH v5 0/3] PM: Intel PowerClamp driver Date: Thu, 3 Jan 2013 07:10:01 -0800 Message-ID: <1357225804-27191-1-git-send-email-jacob.jun.pan@linux.intel.com> Return-path: Received: from mga02.intel.com ([134.134.136.20]:41404 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753986Ab3ACXKS (ORCPT ); Thu, 3 Jan 2013 18:10:18 -0500 Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: Linux PM , LKML , Rafael Wysocki Cc: Len Brown , Thomas Gleixner , "H. Peter Anvin" , Ingo Molnar , Zhang Rui , Rob Landley , Arjan van de Ven , Paul McKenney , Joe Perches , Jacob Pan v5 changes: - use bool for clamping flag. - removed duplicated #define MSR_PKG_Cx_RESIDENCY - adjust window_size range test to match comments, which is between 2 and 10. We have done some experiment with idle injection on Intel platforms. The idea is to use the increasingly power efficient package level C-states for power capping and passive thermal control. Documentation is included in the patch to explain the theory of operation, performance implication, calibration, scalability, and user interface. Please refer to the following file for more details. Documentation/thermal/intel_powerclamp.txt Arjan van de Ven created the original idea and driver, I have been refining driver in hope that they can be to be useful beyond a proof of concept. Jacob Pan (3): tick: export nohz tick idle symbols for module use x86/nmi: export local_touch_nmi() symbol for modules PM: Introduce Intel PowerClamp Driver Documentation/thermal/intel_powerclamp.txt | 307 +++++++++++ arch/x86/kernel/nmi.c | 1 + drivers/thermal/Kconfig | 10 + drivers/thermal/Makefile | 2 + drivers/thermal/intel_powerclamp.c | 758 ++++++++++++++++++++++++++++ kernel/time/tick-sched.c | 2 + 6 files changed, 1080 insertions(+) create mode 100644 Documentation/thermal/intel_powerclamp.txt create mode 100644 drivers/thermal/intel_powerclamp.c -- 1.7.9.5