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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06006C433EF for ; Mon, 14 Mar 2022 19:32:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231265AbiCNTda (ORCPT ); Mon, 14 Mar 2022 15:33:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234713AbiCNTda (ORCPT ); Mon, 14 Mar 2022 15:33:30 -0400 Received: from outbound5f.eu.mailhop.org (outbound5f.eu.mailhop.org [3.127.8.113]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 62FEC3B3E6 for ; Mon, 14 Mar 2022 12:32:19 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1647286276; cv=none; d=outbound.mailhop.org; s=arc-outbound20181012; b=c7ZIavyV+JE/zATvCJPYpmPaemyRhiv8LNF902z/ZO62xp4nP6WKiM3PPExTInlzZWWElqqXFu7BU 1aeLpexZuiefok+xRmtlRwMp0SmAFSp36LPT/P8sr2BYIUxi6GaKSW2wO333/ySdxMHRLEverU3ZaX pSUT4Jk2ZyGPmOb9klnWvW2zLarHsXAJiCCefPZIgCbNWDk8ob5tbMrdEP0MY5WZar/AqPYTyZF2C1 ZnRkuaMMNkW103DxwHydD4h2S8QI+uH03hikcJDRKWYQ7RHcEloQO8MMmRO36xiuzMBCElbIH4SVxs 8IFKuLPrilVBoRi87RFS0saGwhgXxFA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=outbound.mailhop.org; s=arc-outbound20181012; h=content-type:mime-version:message-id:in-reply-to:date:references:subject:cc: to:from:dkim-signature:dkim-signature:from; bh=kyp+Owf05CXyILPnGgrKMmzJC3i4g9GqdGayXhcX37Y=; b=G6oxolMPPC6GIRlrOMkOPgh3AtOfxsqyMHncrzX0uob1+/qQ+SZzXv7lKe1Que47vJFnn5ZpD5ejI xGH1mhiTxMttx+E89011KFD4eO0QzgMYrUgjOcCQ859/ClZ5f0ls92oxu5fHG5nRz6G/3MiwpvjHk9 CBXUXJtq0iidBbN7/SPBLpzYJzB0/7XkrjGhw9KgA1U/vm+lw2yJ1hxbcR89qOgEkk/S1J04lfVhH2 zLHP/FiOowMceSzCIxQ+pgK54seDdEW+XBOQWuIuRHVS/d0r5WLlte1lo9Uh7rJyntD/SAqsqc9w0O J19427VVZEjpc5te0A2QeZt09QoldkA== ARC-Authentication-Results: i=1; outbound2.eu.mailhop.org; spf=pass smtp.mailfrom=stackframe.org smtp.remote-ip=130.180.31.158; dmarc=none header.from=stackframe.org; arc=none header.oldest-pass=0; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stackframe.org; s=duo-1634547266507-560c42ae; h=content-type:mime-version:message-id:in-reply-to:date:references:subject:cc: to:from:from; bh=kyp+Owf05CXyILPnGgrKMmzJC3i4g9GqdGayXhcX37Y=; b=FUkxJlDpqp3dHc/gnMxe9Ooe+5SqbsSaCn3ZNCxTpsb7wpqdPbStabADLt0auJSfZoXHEXIZ/i9KM TL1xyttaFw54EYB6sjJzpkTSdGDqMPQvnvOc8z8IHuGk11FmqKUVI/PZHUnzH4PLxkcpMfL5b4MwnB 231RhdPm/0sLtNwE= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=outbound.mailhop.org; s=dkim-high; h=content-type:mime-version:message-id:in-reply-to:date:references:subject:cc: to:from:from; bh=kyp+Owf05CXyILPnGgrKMmzJC3i4g9GqdGayXhcX37Y=; b=gfneBe73mXhdcRLk9PfWLD6kk5uzuEeSnXWq0y+vf2RSxuacg0ESjr2bsLXbGWryVC8MtsEQEg3uY D2pd6Tn9ZW+5xRbq/hSOfX3kHce0iMQMcotAgzPileKbHRcDesPY2GPpOY3zIsAN/ry/LBhlt8gHNl M4lO5Z4Vtuncvhaj86iAfN3cVWt+57uF37V6tVpKm+JI+WpuEJncIu48Odgr4jNXKyd3gdQODWstRE zxlkhb5MCFcwLyEb8Ut7oLqPe1GKm0bKQud+R6hnZ8jC6GvL26gtyzn3VISsinq37UXMxbDauVjJqP uzTp9vKnIzfyx1uZhqTc6FJSZZRPMpA== X-Originating-IP: 130.180.31.158 X-MHO-RoutePath: dG9ta2lzdG5lcm51 X-MHO-User: 4d3b609d-a3cd-11ec-bc05-4b4748ac966b X-Report-Abuse-To: https://support.duocircle.com/support/solutions/articles/5000540958-duocircle-standard-smtp-abuse-information X-Mail-Handler: DuoCircle Outbound SMTP Received: from mail.duncanthrax.net (ip-130-180-031-158.um40.pools.vodafone-ip.de [130.180.31.158]) by outbound2.eu.mailhop.org (Halon) with ESMTPSA id 4d3b609d-a3cd-11ec-bc05-4b4748ac966b; Mon, 14 Mar 2022 19:31:12 +0000 (UTC) Received: from ip-046-005-169-013.um12.pools.vodafone-ip.de ([46.5.169.13] helo=x1.stackframe.org.stackframe.org) by mail.duncanthrax.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1nTqPS-0005K7-DP; Mon, 14 Mar 2022 20:31:14 +0100 From: Sven Schnelle To: Helge Deller Cc: linux-parisc@vger.kernel.org, James Bottomley , John David Anglin Subject: Re: [PATCH] parisc: Avoid calling SMP cache flush functions on cache-less machines References: <20220312200533.74209-1-deller@gmx.de> Date: Mon, 14 Mar 2022 20:31:08 +0100 In-Reply-To: <20220312200533.74209-1-deller@gmx.de> (Helge Deller's message of "Sat, 12 Mar 2022 21:05:33 +0100") Message-ID: <87y21cs54z.fsf@x1.stackframe.org> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org Hi Helge, Helge Deller writes: > At least the qemu virtual machine does not provide D- and I-caches, > so skip triggering SMP irqs to flush caches on such machines. > > Signed-off-by: Helge Deller Not sure about the real performance benefit on hppa, but maybe use static branches?