From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-x243.google.com (mail-pf0-x243.google.com [IPv6:2607:f8b0:400e:c00::243]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3ydg2Z3yLzzDrSK for ; Sat, 18 Nov 2017 01:08:54 +1100 (AEDT) Received: by mail-pf0-x243.google.com with SMTP id i15so2035299pfa.3 for ; Fri, 17 Nov 2017 06:08:54 -0800 (PST) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Cc: Nicholas Piggin , Vaidyanathan Srinivasan , "Gautham R . Shenoy" , Paul Mackerras Subject: [PATCH 0/3] one more try at idle improvements Date: Sat, 18 Nov 2017 00:08:04 +1000 Message-Id: <20171117140807.22105-1-npiggin@gmail.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , The recent KVM work clashed with a couple of my patches, so they were reverted/dropped for this merge window. I've made another attempt at them, hopefully done in a way that is more compatible with KVM requirements and in a bit nicer way (POWER8 contex switching should speed up a bit too). I'm not completely sure I got patch 2 right. It works on POWER8, but haven't been able to get POWER9 running with hash on radix. Thanks, Nick Nicholas Piggin (3): powerpc/64s/idle: POWER9 implement a separate idle stop function for hotplug powerpc/64s/idle: avoid sync for KVM state when waking from idle powerpc/64s/idle: POWER9 ESL=0 stop avoid save/restore overhead arch/powerpc/include/asm/processor.h | 1 + arch/powerpc/kernel/idle_book3s.S | 62 +++++++++++++++++------------------ arch/powerpc/platforms/powernv/idle.c | 9 +++-- 3 files changed, 38 insertions(+), 34 deletions(-) -- 2.15.0