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 1ED82C02180 for ; Mon, 13 Jan 2025 16:50:54 +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:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=+aUnWkIHwhQ+SpBem9+leCKrek2lWeaNW/FYtCa6Zac=; b=A4gGAUYuPyyszttI8CBx/zeeZc mfJ/9E103EV9QMJL7Vpe8iHPrk9C02ZyRF0fvoRuMY5WcsbFe0FEU4KrJUdBS9KA3Z4PJOmBS2zcE m+qTmkv2w5Ix99O+HZBsja4dzl4LcAt8A4W+a7x9HtzM5Zx3AaIoVcxcdjHmDeD0zMYqDPnVgaWFv LTALy7dGe/8V5df7zdb92M8/Wgyu7c5yWgqKQL2iQDkVdFxYKMFvirwOBdEzmdCBisU1j+9cy/cFS dBuDI9BpHmJuVnpkUftJ7+EPWq2Z+F2kV+tEowJAlJ5ClT5sci6Ugub8hg9fEIONs+yIf0boZjk6/ TGV+b0jg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tXNeF-00000005wUC-0RfQ; Mon, 13 Jan 2025 16:50:43 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tXNbw-00000005vwt-3rUd; Mon, 13 Jan 2025 16:48:22 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 2554D5C5637; Mon, 13 Jan 2025 16:47:39 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00791C4CED6; Mon, 13 Jan 2025 16:48:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736786899; bh=JKbUdrq2yjCdAS7+vTikTrh0+8U9qazr2XTClE4SOeE=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=vGT3La7eABzQ7OhDTupouwdqXt4MD5RkP+HE//stc61NySgZntcB28m6U2N4jYZMU JET9d/nkuUq4pZJqDbrWoMZzE9F0B7/+KoWOUZ4cZf66NGlgdEl6p6sJFJRw6gQJSy aTTYoEWcEgZvDwfiSGdaQdfzIBQM/9L4W6WX2frJXvClVsPW0Y3TaAxlQ3azMnAaqo 9fysBp7HU2Zhnfjpz5Ibv/CnyLtcXljQYgYj2EGIVX50UrcJYbLTuGgAz2R32sx7Gw LFw61MzuVHihkvPMlUj4wOWObdb861F+84u5fSpgNV9c6iUVIXsAXCob5RsKZB6DsP legD9xTnZPxzA== Date: Mon, 13 Jan 2025 16:48:10 +0000 From: Will Deacon To: Barry Song <21cnbao@gmail.com> Cc: akpm@linux-foundation.org, linux-mm@kvack.org, baolin.wang@linux.alibaba.com, chrisl@kernel.org, david@redhat.com, ioworker0@gmail.com, kasong@tencent.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, ryan.roberts@arm.com, v-songbaohua@oppo.com, x86@kernel.org, linux-riscv@lists.infradead.org, ying.huang@intel.com, zhengtangquan@oppo.com, lorenzo.stoakes@oracle.com, Catalin Marinas , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" , Anshuman Khandual , Shaoqin Huang , Gavin Shan , Kefeng Wang , Mark Rutland , "Kirill A. Shutemov" , Yosry Ahmed , Paul Walmsley , Palmer Dabbelt , Albert Ou , Yicong Yang Subject: Re: [PATCH v2 2/4] mm: Support tlbbatch flush for a range of PTEs Message-ID: <20250113164809.GC14101@willie-the-truck> References: <20250113033901.68951-1-21cnbao@gmail.com> <20250113033901.68951-3-21cnbao@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250113033901.68951-3-21cnbao@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250113_084821_040032_17CBEEEF X-CRM114-Status: GOOD ( 14.73 ) 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, Jan 13, 2025 at 04:38:59PM +1300, Barry Song wrote: > From: Barry Song > > This is a preparatory patch to support batch PTE unmapping in > `try_to_unmap_one`. It first introduces range handling for > `tlbbatch` flush. Currently, the range is always set to the size of > PAGE_SIZE. > > Cc: Catalin Marinas > Cc: Will Deacon > Cc: Thomas Gleixner > Cc: Ingo Molnar > Cc: Borislav Petkov > Cc: Dave Hansen > Cc: "H. Peter Anvin" > Cc: Anshuman Khandual > Cc: Ryan Roberts > Cc: Shaoqin Huang > Cc: Gavin Shan > Cc: Kefeng Wang > Cc: Mark Rutland > Cc: David Hildenbrand > Cc: Lance Yang > Cc: "Kirill A. Shutemov" > Cc: Yosry Ahmed > Cc: Paul Walmsley > Cc: Palmer Dabbelt > Cc: Albert Ou > Cc: Yicong Yang > Signed-off-by: Barry Song > --- > arch/arm64/include/asm/tlbflush.h | 26 ++++++++++++++------------ > arch/arm64/mm/contpte.c | 2 +- > arch/riscv/include/asm/tlbflush.h | 3 ++- > arch/riscv/mm/tlbflush.c | 3 ++- > arch/x86/include/asm/tlbflush.h | 3 ++- > mm/rmap.c | 12 +++++++----- > 6 files changed, 28 insertions(+), 21 deletions(-) The arm64 bits look correct to me: Acked-by: Will Deacon Will