Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752474AbbEHFMh (ORCPT ); Fri, 8 May 2015 01:12:37 -0400 Received: from mail-oi0-f51.google.com ([209.85.218.51]:35499 "EHLO mail-oi0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752411AbbEHFMf (ORCPT ); Fri, 8 May 2015 01:12:35 -0400 MIME-Version: 1.0 In-Reply-To: <1430729652-14813-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com> References: <1430729652-14813-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com> Date: Fri, 8 May 2015 10:42:34 +0530 Message-ID: Subject: Re: [PATCH v3 0/6] powernv: cpufreq: Report frequency throttle by OCC From: Viresh Kumar To: Shilpasri G Bhat Cc: "linuxppc-dev@ozlabs.org" , Linux Kernel Mailing List , "Rafael J. Wysocki" , Preeti U Murthy , "linux-pm@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1600 Lines: 32 On 4 May 2015 at 14:24, Shilpasri G Bhat wrote: > This patchset intends to add frequency throttle reporting mechanism > to powernv-cpufreq driver when OCC throttles the frequency. OCC is an > On-Chip-Controller which takes care of the power and thermal safety of > the chip. The CPU frequency can be throttled during an OCC reset or > when OCC tries to limit the max allowed frequency. The patchset will > report such conditions so as to keep the user informed about reason > for the drop in performance of workloads when frequency is throttled. > > Changes from v2: > - Split into multiple patches > - Semantic fixes > > Shilpasri G Bhat (6): > cpufreq: poowernv: Handle throttling due to Pmax capping at chip level > powerpc/powernv: Add definition of OPAL_MSG_OCC message type > cpufreq: powernv: Register for OCC related opal_message notification > cpufreq: powernv: Call throttle_check() on receiving OCC_THROTTLE > cpufreq: powernv: Report Psafe only if PMSR.psafe_mode_active bit is > set > cpufreq: powernv: Restore cpu frequency to policy->cur on unthrottling > > arch/powerpc/include/asm/opal-api.h | 8 ++ > drivers/cpufreq/powernv-cpufreq.c | 199 +++++++++++++++++++++++++++++++++--- > 2 files changed, 192 insertions(+), 15 deletions(-) Acked-by: Viresh Kumar -- 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/