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 1DA78C74A5B for ; Sat, 18 Mar 2023 01:00:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229588AbjCRBA0 (ORCPT ); Fri, 17 Mar 2023 21:00:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60616 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229533AbjCRBAZ (ORCPT ); Fri, 17 Mar 2023 21:00:25 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E9CB22DD9 for ; Fri, 17 Mar 2023 18:00:24 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id D9794B82749 for ; Sat, 18 Mar 2023 01:00:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 742CDC433EF; Sat, 18 Mar 2023 01:00:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679101221; bh=n7fbK9Gt9s++eDvMkVmtPnuxDMaNPYXF5f2+1cxv+bY=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=YzdrVz+2gsN9ZxBz1fYUqr1E7Mjpg6tdnkV+tT1SZ0HKGBC81YxgLciOQz4J1JicM Lqnc+3eCKc+l2MHaVKXfEYVbmAUcYnHm+Mf3g0YZV5LnQAle6vhqp3mi8GS56iXeZP fXsB+9ZR/U5+CXHK8N9GvmCzKwkyHTWWqltMSVY4eHs1PON5LaJlCEgxzinNa0dvNM PClHub6eU2wSjtIkn3Bn2NrJIL+rT0JM+YKxfUkKtZxedLBDW8ontjAxNPA6i9tye2 bpyEOdQj4pfFY6J2PNugV0W3GojzMhv9+KsdDYOWjUZTzdSsFdf88NVMZ5I2FkUuut rkF64ZMTjDeAQ== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id 48858E21EE9; Sat, 18 Mar 2023 01:00:21 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v6 0/8] RISC-V: Apply Zicboz to clear_page From: patchwork-bot+linux-riscv@kernel.org Message-Id: <167910122129.24496.10588514847374462522.git-patchwork-notify@kernel.org> Date: Sat, 18 Mar 2023 01:00:21 +0000 References: <20230224162631.405473-1-ajones@ventanamicro.com> In-Reply-To: <20230224162631.405473-1-ajones@ventanamicro.com> To: Andrew Jones Cc: linux-riscv@lists.infradead.org, kvm-riscv@lists.infradead.org, devicetree@vger.kernel.org, conor.dooley@microchip.com, paul.walmsley@sifive.com, palmer@dabbelt.com, sudip.mukherjee@codethink.co.uk, ben.dooks@codethink.co.uk, atishp@rivosinc.com, aou@eecs.berkeley.edu, apatel@ventanamicro.com, krzysztof.kozlowski+dt@linaro.org, robh@kernel.org, jszhang@kernel.org, heiko@sntech.de Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hello: This series was applied to riscv/linux.git (for-next) by Palmer Dabbelt : On Fri, 24 Feb 2023 17:26:23 +0100 you wrote: > When the Zicboz extension is available we can more rapidly zero naturally > aligned Zicboz block sized chunks of memory. As pages are always page > aligned and are larger than any Zicboz block size will be, then > clear_page() appears to be a good candidate for the extension. While cycle > count and energy consumption should also be considered, we can be pretty > certain that implementing clear_page() with the Zicboz extension is a win > by comparing the new dynamic instruction count with its current count[1]. > Doing so we see that the new count is just over a quarter of the old count > (see patch6's commit message for more details). > > [...] Here is the summary with links: - [v6,1/8] RISC-V: alternatives: Support patching multiple insns in assembly https://git.kernel.org/riscv/c/0b2f658f5370 - [v6,2/8] RISC-V: Factor out body of riscv_init_cbom_blocksize loop https://git.kernel.org/riscv/c/8b05e7d0408a - [v6,3/8] dt-bindings: riscv: Document cboz-block-size https://git.kernel.org/riscv/c/ea20f117ab99 - [v6,4/8] RISC-V: Add Zicboz detection and block size parsing https://git.kernel.org/riscv/c/7ea5a73617e9 - [v6,5/8] RISC-V: cpufeatures: Put the upper 16 bits of patch ID to work https://git.kernel.org/riscv/c/d25f256332cc - [v6,6/8] RISC-V: Use Zicboz in clear_page when available https://git.kernel.org/riscv/c/ab0f77465e3e - [v6,7/8] RISC-V: KVM: Provide UAPI for Zicboz block size https://git.kernel.org/riscv/c/665fd8862413 - [v6,8/8] RISC-V: KVM: Expose Zicboz to the guest https://git.kernel.org/riscv/c/b20f67994f35 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html