From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AAE2C47096 for ; Sun, 6 Jun 2021 12:12:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2C04161408 for ; Sun, 6 Jun 2021 12:12:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230235AbhFFMOB (ORCPT ); Sun, 6 Jun 2021 08:14:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48798 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230175AbhFFMNz (ORCPT ); Sun, 6 Jun 2021 08:13:55 -0400 Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 30A60C061766 for ; Sun, 6 Jun 2021 05:12:06 -0700 (PDT) Received: by ozlabs.org (Postfix, from userid 1034) id 4Fyb3757PQz9sWD; Sun, 6 Jun 2021 22:12:03 +1000 (AEST) From: Michael Ellerman To: Benjamin Herrenschmidt , Christophe Leroy , Michael Ellerman , Paul Mackerras Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: <848f18d213b8341939add7302dc4ef80cc7a12e3.1620307636.git.christophe.leroy@csgroup.eu> References: <848f18d213b8341939add7302dc4ef80cc7a12e3.1620307636.git.christophe.leroy@csgroup.eu> Subject: Re: [PATCH] powerpc/32s: Speed up likely path of kuap_update_sr() Message-Id: <162298131688.2353459.37331133206133649.b4-ty@ellerman.id.au> Date: Sun, 06 Jun 2021 22:08:36 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 6 May 2021 13:27:31 +0000 (UTC), Christophe Leroy wrote: > In most cases, kuap_update_sr() will update a single segment > register. > > We know that first update will always be done, if there is no > segment register to update at all, kuap_update_sr() is not > called. > > [...] Applied to powerpc/next. [1/1] powerpc/32s: Speed up likely path of kuap_update_sr() https://git.kernel.org/powerpc/c/8af8d72dc58e90dc945ca627b24968400e0f21b6 cheers