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 9919FEC0480 for ; Tue, 3 Mar 2026 09:59:41 +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:MIME-Version:References:In-Reply-To:Message-ID:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=7XrMK7viYh/cii+6p8BcVtBGjQGuMnafZa3dwqHYEDg=; b=3rld8fogGNeV9dDgJZrS6whEjt lyWX0EcBLmh3TFyGtxPSGPAdXGdom9LmHNwJpLSwxmc5q/qvdKwfXVBheynwJ0PuAhYbdx7Yt2gJT zKCmUpeqaLJxgdBaZO8c9QL7Sj9gCZ1QNZ+7QN0Qet8fUTpMNksnlPOy1PaDjI2cF7KRoK5mWlRb9 76INvgvef8mQmf+LVbG1JAf8Ztwg4fFFUdLWMqEYBAXEevj3WobeI1vBCGsxNYRRDxgYcBwbUTUH2 TREZV5+5uPsCRKHvWbhG9OQ7qmaIVFOwsYt0aysDZapwymCihKSfnfaolICeoku11Lw0llqTtXaSv HTNzPKYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vxMXP-0000000EvGY-1qYG; Tue, 03 Mar 2026 09:59:35 +0000 Received: from sinmsgout01.his.huawei.com ([119.8.177.36]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vxMXM-0000000EvG8-0SET for linux-arm-kernel@lists.infradead.org; Tue, 03 Mar 2026 09:59:33 +0000 dkim-signature: v=1; a=rsa-sha256; d=huawei.com; s=dkim; c=relaxed/relaxed; q=dns/txt; h=From; bh=7XrMK7viYh/cii+6p8BcVtBGjQGuMnafZa3dwqHYEDg=; b=Y8rzHPYPG+7GcZ6lLbPv++D3p/Cq6GBeb/6TC9zYildLajCIKFmOba1eZbf4QGV7BXlT8yS8P tYXWKquXuR6svMiQJjrExI5+kDxU67i+EqXPDpXJoJ5uXScHSoXNXVmK/DfTbLKzEnopCjAszYL lo4pPVn9sGExgmGjcT/P54s= Received: from frasgout.his.huawei.com (unknown [172.18.146.33]) by sinmsgout01.his.huawei.com (SkyGuard) with ESMTPS id 4fQB4y0dkWz1P7Qt; Tue, 3 Mar 2026 17:55:45 +0800 (CST) Received: from mail.maildlp.com (unknown [172.18.224.150]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4fQB8S4wnnzJ46nT; Tue, 3 Mar 2026 17:58:48 +0800 (CST) Received: from dubpeml500005.china.huawei.com (unknown [7.214.145.207]) by mail.maildlp.com (Postfix) with ESMTPS id 8DDA94056E; Tue, 3 Mar 2026 17:59:21 +0800 (CST) Received: from localhost (10.203.177.15) by dubpeml500005.china.huawei.com (7.214.145.207) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Tue, 3 Mar 2026 09:59:14 +0000 Date: Tue, 3 Mar 2026 09:59:13 +0000 From: Jonathan Cameron To: Ryan Roberts CC: Will Deacon , Ard Biesheuvel , Catalin Marinas , Mark Rutland , Linus Torvalds , Oliver Upton , Marc Zyngier , "Dev Jain" , Linu Cherian , , Subject: Re: [PATCH v3 12/13] arm64: mm: Wrap flush_tlb_page() around __do_flush_tlb_range() Message-ID: <20260303095913.0000684c@huawei.com> In-Reply-To: <20260302135602.3716920-13-ryan.roberts@arm.com> References: <20260302135602.3716920-1-ryan.roberts@arm.com> <20260302135602.3716920-13-ryan.roberts@arm.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.203.177.15] X-ClientProxiedBy: lhrpeml500009.china.huawei.com (7.191.174.84) To dubpeml500005.china.huawei.com (7.214.145.207) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260303_015932_332896_2F590E80 X-CRM114-Status: GOOD ( 11.35 ) 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 Mon, 2 Mar 2026 13:55:59 +0000 Ryan Roberts wrote: > Flushing a page from the tlb is just a special case of flushing a range. > So let's rework flush_tlb_page() so that it simply wraps > __do_flush_tlb_range(). While at it, let's also update the API to take > the same flags that we use when flushing a range. This allows us to > delete all the ugly "_nosync", "_local" and "_nonotify" variants. > > Thanks to constant folding, all of the complex looping and tlbi-by-range > options get eliminated so that the generated code for flush_tlb_page() > looks very similar to the previous version. > > Reviewed-by: Linu Cherian > Signed-off-by: Ryan Roberts Reviewed-by: Jonathan Cameron