From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-x244.google.com (mail-pf0-x244.google.com [IPv6:2607:f8b0:400e:c00::244]) (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 3yS7Tb3M98zDqlM for ; Thu, 2 Nov 2017 12:55:46 +1100 (AEDT) Received: by mail-pf0-x244.google.com with SMTP id x7so3389392pfa.1 for ; Wed, 01 Nov 2017 18:55:46 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Cc: Nicholas Piggin Subject: [PATCH v2 0/2] Add POWER9 DD2.0 feature, remove idle workarounds in DD2.1 Date: Thu, 2 Nov 2017 12:55:33 +1100 Message-Id: <20171102015535.30843-1-npiggin@gmail.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Chnages since v1: - Change unnecessarily 'inverted else' conditions for the DD2.0 feature workarounds, noted by mpe. - One of the cases was incorrect, removing the code in for DD2.0 and leaving it in for 2.1. Performance is further slightly improved with this case fixed. Nicholas Piggin (2): powerpc: add POWER9_DD20 feature powerpc/64s: idle skip POWER9 DD1 and DD2.0 specific workarounds on DD2.1 arch/powerpc/include/asm/cputable.h | 5 ++++- arch/powerpc/kernel/cputable.c | 20 ++++++++++++++++++++ arch/powerpc/kernel/dt_cpu_ftrs.c | 2 ++ arch/powerpc/kernel/idle_book3s.S | 31 ++++++++++++++++++++----------- 4 files changed, 46 insertions(+), 12 deletions(-) -- 2.15.0