From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933424AbaHYSCs (ORCPT ); Mon, 25 Aug 2014 14:02:48 -0400 Received: from e8.ny.us.ibm.com ([32.97.182.138]:36458 "EHLO e8.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932253AbaHYSCp (ORCPT ); Mon, 25 Aug 2014 14:02:45 -0400 From: "Shreyas B. Prabhu" To: linux-kernel@vger.kernel.org Cc: "Shreyas B. Prabhu" , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linuxppc-dev@lists.ozlabs.org Subject: [PATCH 9/9] powerpc/powernv: Enter deepest supported idle state in offline Date: Mon, 25 Aug 2014 23:31:13 +0530 Message-Id: <1408989673-14137-10-git-send-email-shreyas@linux.vnet.ibm.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1408989673-14137-1-git-send-email-shreyas@linux.vnet.ibm.com> References: <1408989673-14137-1-git-send-email-shreyas@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 14082518-0320-0000-0000-0000004F6AD1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Enter winkle during offline if supported, else revert to sleep or nap. Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Shreyas B. Prabhu --- arch/powerpc/platforms/powernv/smp.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 3ad31d2..e3fc2c9 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -169,8 +169,10 @@ static void pnv_smp_cpu_kill_self(void) while (!generic_check_cpu_restart(cpu)) { ppc64_runlatch_off(); - /* If sleep is supported, go to sleep, instead of nap */ - if (idle_states & IDLE_USE_SLEEP) + /* Go to deepest supported idle state */ + if (idle_states & IDLE_USE_WINKLE) + power7_winkle(); + else if (idle_states & IDLE_USE_SLEEP) power7_sleep(); else power7_nap(1); -- 1.9.0