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=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 A1778C43457 for ; Fri, 16 Oct 2020 17:25:44 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1B53720789 for ; Fri, 16 Oct 2020 17:25:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Z3QDvapS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1B53720789 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:42424 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kTTU7-0007sv-06 for qemu-devel@archiver.kernel.org; Fri, 16 Oct 2020 13:25:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37490) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kTTNo-0001e8-Tx for qemu-devel@nongnu.org; Fri, 16 Oct 2020 13:19:13 -0400 Received: from mail-pf1-x444.google.com ([2607:f8b0:4864:20::444]:42096) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kTTNh-0008ET-Qw for qemu-devel@nongnu.org; Fri, 16 Oct 2020 13:19:12 -0400 Received: by mail-pf1-x444.google.com with SMTP id x13so1856843pfa.9 for ; Fri, 16 Oct 2020 10:19:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=xElUmhXNnSp7AFdkOLEgmMqLfxiXtNHwYnSUYtENJ9o=; b=Z3QDvapSVrpJqCQ/VO85iZgCaIqVOvPnl7LZy+Ro9EpeH3ckZWcGP9vfyLZRw5LPIT tLDoW7al8aSimy4No89wd2C+c/f0aqu6T+0A0+KCkYqo9sHYQvIQMBkfCTO3S+ynDbS+ a6BQXJmMRddrVcHSycGQW33ADHeKCwCnnyV40vFbs6aq37fnqNBbSzO/tff3WJ38fWnW SWOMy/CISR3m5UD+9cX0GaaO+uwj9o0ole3kHn21S6QqpCIvaenaOEv+LH559FV0Y+rU Rwm3Aiq/yM2bq+hfV+zn/tieqk/T/Iao2ICA9u4i9MViD/JOr2k1x7cG0D+LbKYCJsAK kahw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=xElUmhXNnSp7AFdkOLEgmMqLfxiXtNHwYnSUYtENJ9o=; b=FpDEK7+vtE0baULzl73rm8Leb/hImPj17HkBOXI4KiJFYUDKHpamkEGbW5rutqRI9b Q5KG46Ca3kLx1BATOatF9m+VRhCDJrWxTwiIDWlslxAGc5KS0rFQkUIEkstJ2ZI1i3oo /R+087d/E35mlu9KiuvHlF9cKtgF/lIF5FA3LBRe5QRA9qC4s/ntMszaNTdSbjZc6tgd wKx907aCbvpSkwYggVGazxP58B//u/o7xPYppdAISw0kwRM0EtVT3//ZylZI/4+sB7Nf jK0MIuEdsh3HifLcJ5nDAJwODlLh1IixLtAnWpyRHFZpU6YS1lwx7UAMrnkieNaeLdWp 8Afg== X-Gm-Message-State: AOAM530rYYT/JACs9j5diYKn7p8OONfbUKY//bl665dLnb2ajHkXe3Hf whHUvkVST4vUaAxktaVISpSI6Q== X-Google-Smtp-Source: ABdhPJzyblGiy9591jB3R9O1dJmtCy/hyIKmIf7e6i1k5AJA+j6Bqm8GfAvnr7aDWjjGmw6WD5gGdA== X-Received: by 2002:a62:4e05:0:b029:156:6a80:2686 with SMTP id c5-20020a624e050000b02901566a802686mr4478680pfb.61.1602868743717; Fri, 16 Oct 2020 10:19:03 -0700 (PDT) Received: from [192.168.1.11] ([71.212.141.89]) by smtp.gmail.com with ESMTPSA id ch21sm3559531pjb.24.2020.10.16.10.19.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 16 Oct 2020 10:19:02 -0700 (PDT) Subject: Re: [RFC PATCH 0/3] target/mips: Make the number of TLB entries a CPU property To: "Victor Kamensky (kamensky)" , =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= , Richard Henderson References: <20201013132535.3599453-1-f4bug@amsat.org> <515ec755fd8d7219040283f0c27346d762ee3c29.camel@linuxfoundation.org> From: Richard Henderson Message-ID: <570801b3-ce5a-682a-334d-73404e418f3d@linaro.org> Date: Fri, 16 Oct 2020 10:19:00 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=2607:f8b0:4864:20::444; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x444.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, NICE_REPLY_A=-0.253, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Rikalo , Khem Raj , "qemu-devel@nongnu.org" , Aleksandar Markovic , Richard Purdie , Aurelien Jarno Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 10/15/20 11:56 AM, Victor Kamensky (kamensky) via wrote: > Is possible to come back to 34Kf route, doing > very small localized very well defined change > of bumping TLBs number for model that we know > works well for us? Yes, thanks for testing. I think we should also add a property to enable Config3.PM for any cpu, and see how that gets on. But simply adjusting the number of tlb entries is a good start, and is the only thing that will work for older kernels. r~