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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2098ACD4F3C for ; Wed, 20 May 2026 08:52:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:CC:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5ILLE5X/zh5Zp5m7SYWsEaC8ZBBvgKc8eCKNCOEyqYg=; b=MbVcV4WsPYPj8fVxco5ZCGBpg8 WhkX7uOrqse6m2mk/MMM1i9Ia3dXkjfLMvf8TOSOARs8W7ay3MCRUbY8uUG+KQ1P/pXmI2KGUAvB2 zUrVmkK0eUL8rQV5oor8pLnaVdXF33euTWKsNU/xlybct8hum8gQ4hrUfRhHdFmhveAs9yIvwmynT Q1TJtMVUjXnXHTrFj2oi9Yi4azn7aXgr2LV5Tete7ia/SYj/k7xIZ8R87nkbG8B69Jl6OVxYM6C0S E/5UkvePKq84H258m2k/flL78Pp2B4iRAWI6bGI7Pnn5nqtDjiP0/++fFuT4rqfGJiv7nUe4q3ai2 T4EPDAEg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPceo-000000041yw-2U0F; Wed, 20 May 2026 08:52:02 +0000 Received: from canpmsgout02.his.huawei.com ([113.46.200.217]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPcek-000000041wJ-4AMb for linux-arm-kernel@lists.infradead.org; Wed, 20 May 2026 08:52:01 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=5ILLE5X/zh5Zp5m7SYWsEaC8ZBBvgKc8eCKNCOEyqYg=; b=ahldOXzRVBCatzSoLh4qIWjZNKkjLW+qbMChK+u+JTSiPCXdTZPYb9zQteodxgzTQLeiOjLFL 1TOQJNZphPCA3XiHB3+YzYEx6XTyKjoXuFgzD869C++zx7TZXKvZ+XrYS/dQlY+k8Os8NGRpKvC x+HpkHsLmUgowgc8bj+OXyA= Received: from mail.maildlp.com (unknown [172.19.162.144]) by canpmsgout02.his.huawei.com (SkyGuard) with ESMTPS id 4gL4pP2yrDzcbR6; Wed, 20 May 2026 16:44:13 +0800 (CST) Received: from kwepemr100010.china.huawei.com (unknown [7.202.195.125]) by mail.maildlp.com (Postfix) with ESMTPS id 6149B4056E; Wed, 20 May 2026 16:51:47 +0800 (CST) Received: from [10.67.120.103] (10.67.120.103) by kwepemr100010.china.huawei.com (7.202.195.125) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.36; Wed, 20 May 2026 16:51:46 +0800 Message-ID: Date: Wed, 20 May 2026 16:51:46 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 0/5] Support the FEAT_HDBSS introduced in Armv9.5 To: Will Deacon , , , , , , Tian Zheng CC: , , , , , , , , , , , , , , Jonathan Cameron References: <20260225040421.2683931-1-zhengtian10@huawei.com> <177918656142.736362.17906576792384645789.b4-ty@kernel.org> From: Tian Zheng In-Reply-To: <177918656142.736362.17906576792384645789.b4-ty@kernel.org> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.120.103] X-ClientProxiedBy: kwepems200001.china.huawei.com (7.221.188.67) To kwepemr100010.china.huawei.com (7.202.195.125) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260520_015159_229867_952803DD X-CRM114-Status: UNSURE ( 8.88 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 5/19/2026 11:23 PM, Will Deacon wrote: > On Wed, 25 Feb 2026 12:04:16 +0800, Tian Zheng wrote: >> This series of patches add support to the Hardware Dirty state tracking >> Structure(HDBSS) feature, which is introduced by the ARM architecture >> in the DDI0601(ID121123) version. >> >> The HDBSS feature is an extension to the architecture that enhances >> tracking translation table descriptors' dirty state, identified as >> FEAT_HDBSS. This feature utilizes hardware assistance to achieve dirty >> page tracking, aiming to significantly reduce the overhead of scanning >> for dirty pages. >> >> [...] > > Applied sysreg definitions to arm64 (for-next/sysregs), thanks! > > [1/5] arm64/sysreg: Add HDBSS related register information > https://git.kernel.org/arm64/c/72f7be0c2e30 > > Cheers, Thanks! Tian