From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2020013C8F3 for ; Mon, 13 Jan 2025 16:48:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736786900; cv=none; b=lOlSKxpQC9ndiYDMsErWA4oYTVvbfRnoXn8Up+MSwdhttHI7zyq3n1I0lk73KHwys5pUqflfIz+oMpkZyC64OV22Y7m5SdYfd/E2zPWyVFKH5DEwN7ev5oz0rBqTThwVTvEQ7VgNURagWVtMFtdPSGJ7leHWSAevLQAyzJWMRLg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736786900; c=relaxed/simple; bh=JKbUdrq2yjCdAS7+vTikTrh0+8U9qazr2XTClE4SOeE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=qd7q5VsWu9lpIhtPJ0SSFHhbBX23i5Cn3B7uwyK51Q668BbqluOxMb7a/07zNZk0uZnDu1/ZvwrALHbvxoLmnYjI9Bh4xCXCqV5+opLPkclvd18bD01+v1e4WNukI0viF4vpNNzxBTarTqS6EFeephQ28dB/As10q+6HCDFhd3I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=vGT3La7e; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="vGT3La7e" 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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) 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