From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e37.co.us.ibm.com (e37.co.us.ibm.com [32.97.110.158]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "e37.co.us.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id A7592B7CC2 for ; Thu, 21 Jan 2010 07:01:10 +1100 (EST) Received: from d03relay04.boulder.ibm.com (d03relay04.boulder.ibm.com [9.17.195.106]) by e37.co.us.ibm.com (8.14.3/8.13.1) with ESMTP id o0KJxdIg011511 for ; Wed, 20 Jan 2010 12:59:39 -0700 Received: from d03av01.boulder.ibm.com (d03av01.boulder.ibm.com [9.17.195.167]) by d03relay04.boulder.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id o0KK0jlJ159592 for ; Wed, 20 Jan 2010 13:00:47 -0700 Received: from d03av01.boulder.ibm.com (loopback [127.0.0.1]) by d03av01.boulder.ibm.com (8.14.3/8.13.1/NCO v10.0 AVout) with ESMTP id o0KK0e3W023944 for ; Wed, 20 Jan 2010 13:00:42 -0700 Subject: [PATCH 0/2] sched: arch_scale_smt_powers From: Joel Schopp To: Peter Zijlstra Content-Type: text/plain; charset="UTF-8" Date: Wed, 20 Jan 2010 14:00:38 -0600 Message-ID: <1264017638.5717.121.camel@jschopp-laptop> Mime-Version: 1.0 Cc: ego@in.ibm.com, linux-kernel@vger.kernel.org, Ingo Molnar , linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , The new Power7 processor has 4 way SMT. This 4 way SMT benefits from dynamic power updates that arch_scale_smt_power was designed to provide. The first patch fixes a generic scheduler bug necessary for arch_scale_smt to properly function. The second patch implements arch_scale_smt_power for powerpc, and in particular for Power7 processors. --- Gautham R Shenoy (1): sched: Fix the place where group powers are updated. Joel Schopp (1): powerpc: implement arch_scale_smt_power for Power7 arch/powerpc/kernel/smp.c | 41 +++++++++++++++++++++++++++++++++++++++++ kernel/sched.c | 7 +++---- kernel/sched_features.h | 2 +- 3 files changed, 45 insertions(+), 5 deletions(-)