From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.10]) (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 DBF2A28C86D for ; Thu, 10 Jul 2025 09:02:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752138165; cv=none; b=pDyvDUUTD1tAGVv9XZG60hAqHvh3l+BxaNdIPpWca88WzxrWmsAqCbm8SYlDboicwS7HGxsA8T14L53T8J1XFfMLBHSq4SCadIPdhHqPC5RjwK1EGbDyONtQq3hLNUF/pNywGzXK8BXAyP1uM5WadoaiwU2IXcsLW+jckODuD1Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752138165; c=relaxed/simple; bh=rnbYzhcyqsM7Cur/yLDLwbaGlPGjk71MN1i+Sn6PF7U=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=cDioIFtwxM561uM4XZGIGIPihpGv7JIrqn7awEAnFXZi6KV4YecqfrGyDz9IAavhd0ERK1n1mkLM/fbxkzrQ973n5IK1gJ3pczlyJbebeCiFqZf3urSyT6kYMBoL1RNvwkiogYy1mk5DLsLA+RC9hzFDH74r20GJl4rsO4InUAQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=EqH2zbZv; arc=none smtp.client-ip=198.175.65.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="EqH2zbZv" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1752138165; x=1783674165; h=message-id:date:mime-version:cc:subject:to:references: from:in-reply-to:content-transfer-encoding; bh=rnbYzhcyqsM7Cur/yLDLwbaGlPGjk71MN1i+Sn6PF7U=; b=EqH2zbZvi/+CHxVzqBIOLYPJI0LN4D1rpKQHcH/MAKn6uusYwFUY6NPd NEChlpti97FUi3i61XLo4n+9GW0g8kr8tmNMT3ZMs7lMseEX0eL3bfYCB lH0CN6wtl+447afZMd1VbrM/Yr3gA2UoxAy84/VVVwkesuzepLrOuj9sN lneEl9IYoErT8QBtEwVeBIRJTkedgtcfe150C+7hc43dmfPZeYLFL/nrd W5zqq1Yz2bvLe+1LG0yR5J+FwkyzdpSawloon3GlYEI0x3ifzJNryuQEG h7G2slHnZPRovCLTL6CogyQ9sNNW+c4GNBl2lACubCnvJ513GJU3xL8rz Q==; X-CSE-ConnectionGUID: yJ1SMTMqRWyz74i8AOvOnw== X-CSE-MsgGUID: MhAYAdtWRFupDJgMrmwhLQ== X-IronPort-AV: E=McAfee;i="6800,10657,11489"; a="71860151" X-IronPort-AV: E=Sophos;i="6.16,300,1744095600"; d="scan'208";a="71860151" Received: from fmviesa002.fm.intel.com ([10.60.135.142]) by orvoesa102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2025 02:02:44 -0700 X-CSE-ConnectionGUID: jrT2+QECRDy8xPWYHiH2Lw== X-CSE-MsgGUID: 9a685G4zTluEDerg8XAcAA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.16,300,1744095600"; d="scan'208";a="179718270" Received: from blu2-mobl.ccr.corp.intel.com (HELO [10.124.243.252]) ([10.124.243.252]) by fmviesa002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Jul 2025 02:02:41 -0700 Message-ID: <5a713081-7a1a-4ff2-8212-cbd4a6c63fc0@linux.intel.com> Date: Thu, 10 Jul 2025 17:02:40 +0800 Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: baolu.lu@linux.intel.com, David Woodhouse , CLEMENT MATHIEU--DRIF Subject: Re: [PATCH 2/2] iommu/vt-d: Deduplicate cache_tag_flush_all by reusing flush_range To: Ethan MILON , "iommu@lists.linux.dev" References: <20250708214821.30967-1-ethan.milon@eviden.com> <20250708214821.30967-2-ethan.milon@eviden.com> Content-Language: en-US From: Baolu Lu In-Reply-To: <20250708214821.30967-2-ethan.milon@eviden.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 7/9/2025 5:48 AM, Ethan MILON wrote: > The logic in cache_tag_flush_all() to iterate over cache tags and issue > TLB invalidations is largely duplicated in cache_tag_flush_range(), with > the only difference being the range parameters. > > Extend cache_tag_flush_range() to handle a full address space flush when > called with start = 0 and end = ULONG_MAX. This allows > cache_tag_flush_all() to simply delegate to cache_tag_flush_range() > > Signed-off-by: Ethan Milon The same issue as the PATCH 1/2. Thanks, baplu