From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751938AbeBBMzZ (ORCPT ); Fri, 2 Feb 2018 07:55:25 -0500 Received: from bombadil.infradead.org ([65.50.211.133]:54935 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751651AbeBBMzR (ORCPT ); Fri, 2 Feb 2018 07:55:17 -0500 Date: Fri, 2 Feb 2018 13:55:09 +0100 From: Peter Zijlstra To: "Rafael J. Wysocki" Cc: Mel Gorman , Mike Galbraith , Matt Fleming , LKML , srinivas.pandruvada@linux.intel.com Subject: Re: [PATCH 4/4] sched/fair: Use a recently used CPU as an idle candidate and the basis for SIS Message-ID: <20180202125509.GO2295@hirez.programming.kicks-ass.net> References: <20180130104555.4125-1-mgorman@techsingularity.net> <3838689.GpfBVtfPr0@aspire.rjw.lan> <20180201091104.GW2269@hirez.programming.kicks-ass.net> <8930678.7E2iWGoJnn@aspire.rjw.lan> <20180202124647.GK2269@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180202124647.GK2269@hirez.programming.kicks-ass.net> User-Agent: Mutt/1.9.2 (2017-12-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 02, 2018 at 01:46:47PM +0100, Peter Zijlstra wrote: > +static void __intel_pstate_hwp_set_desired(int val) > +{ > + u64 value; > + > + value = rdmsrl(MSR_HWP_REQUEST); > + value &= ~GENMASK_ULL(23, 16); > + value |= (val & 0xff) << 16; > + wrmsrl(MSR_HWP_REQUEST, val); D'0h: s/val/value/ > +}