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 19335CD5BD5 for ; Thu, 28 May 2026 07:35:50 +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=CGlc5+H8uZnXaj+hM0UqmmqdaPGOtWEZtMmJdfupvbM=; b=dTcCodM1+NI2oL4TKf8PSLqF53 b6NfJZXKk3UwpYC8v+xvdNZPsl9LphBplxjBpPQy5bisa21lpWJ1MFBCDX+DLmgaYgr0crpx4H0b6 fumoivUvVVuqNE8glqbthR1IPfbkh91Oj96/VFLh1sis/SBgrCP8ft0Br1MuDB8yPNWEuXs/AOqQv oBruTagMtoLj3igk2z+DT1xukj1/XxNr0Lh7JylcCRgLrNhqLIgi7dDePIU/Y5vBga+J8lY7LZ5AT sIkjH+UXIP6zHiO/Tq0Ox+3qiMHB3Ih3YcPc3Ipn8d1KmdQxiAVClAXdUvdilWmalFRiPymb6Zza4 +CjD/Wag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wSVHM-00000005Ggj-0dfj; Thu, 28 May 2026 07:35:44 +0000 Received: from mail.8bytes.org ([85.214.250.239]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wSVHK-00000005Gfx-0UmH for linux-arm-kernel@lists.infradead.org; Thu, 28 May 2026 07:35:43 +0000 Received: from 8bytes.org (p200300f6af4fc5001a5b4667a2accba1.dip0.t-ipconnect.de [IPv6:2003:f6:af4f:c500:1a5b:4667:a2ac:cba1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.8bytes.org (Postfix) with ESMTPSA id 7F4DD1C5BA7; Thu, 28 May 2026 09:35:40 +0200 (CEST) Date: Thu, 28 May 2026 09:35:39 +0200 From: =?utf-8?B?SsO2cmcgUsO2ZGVs?= To: Nicolin Chen Cc: jgg@nvidia.com, will@kernel.org, robin.murphy@arm.com, bhelgaas@google.com, praan@google.com, baolu.lu@linux.intel.com, kevin.tian@intel.com, miko.lenczewski@arm.com, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, dan.j.williams@intel.com, jonathan.cameron@huawei.com, vsethi@nvidia.com, linux-cxl@vger.kernel.org, nirmoyd@nvidia.com Subject: Re: [PATCH v6 0/3] Allow ATS to be always on for certain ATS-capable devices Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260528_003542_301819_C236167D X-CRM114-Status: UNSURE ( 9.34 ) 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 Thu, May 21, 2026 at 01:34:19PM -0700, Nicolin Chen wrote: > Nicolin Chen (3): > PCI: Add pci_ats_required() for CXL.cache capable devices > PCI: Allow ATS to be always on for pre-CXL devices > iommu/arm-smmu-v3: Allow ATS to be always on > > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 1 + > drivers/pci/pci.h | 9 +++ > include/linux/pci-ats.h | 3 + > include/uapi/linux/pci_regs.h | 1 + > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 81 ++++++++++++++++++--- > drivers/pci/ats.c | 47 ++++++++++++ > drivers/pci/quirks.c | 42 +++++++++++ > 7 files changed, 175 insertions(+), 9 deletions(-) Applied, thanks.