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 77548EE4996 for ; Mon, 21 Aug 2023 10:43:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: 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=hwCmxPDEAIGph5SFIOqfWCMJWBU83sXrmhakVF2TVVg=; b=RD5CeZNC/zrhKg Vz+hNGWkS+aX33Iqnsl0azhuKLHgq1/Og/0CcRdtwsVOhIoBl2JX2veVsVNw35NxQtQ41i7jqR0Yh bdo+v9IPQejtO06VCgheVApga1B5fods/qaipJjJ5xEn4S4ZjO2/UD/M8yDX6G5UbHgn8ONeAtMaJ mGfkZqm+KTSXy0MvpoeS8BIjZLyWGrSuvb928pE0KR90oBCmuOTAJftTRceGotPt17O15qnxEBTum m0spvAS9cGlgCf6cRhHJtfm3miNBZ0dCuKTXcP0vDA/LNKI3oCTgaweCPgDGl61qwATCumdZPcRT2 wiBaBJHzdEE7nmJJ69VQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qY2N6-00Dnjd-0o; Mon, 21 Aug 2023 10:42:56 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qY2N4-00Dnj2-1X for linux-arm-kernel@lists.infradead.org; Mon, 21 Aug 2023 10:42:55 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4C62F623FE; Mon, 21 Aug 2023 10:42:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1A863C433C8; Mon, 21 Aug 2023 10:42:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692614572; bh=XnwUB514PPCDbHd6aAR29S9FdVfiRdORES8i2CcbAFA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=a5QpjJIWaWBVQFquS5BaAK1jjl/dAdClZj/ZErMCv8PiBda1NJF2FCHOz4u1Tz7qm lBteEy+WFVjjQHs2OsVdWPMhJB2XhqyJyVJqCXiTpMQV4cO4MJYKwGkrnd053nlkfH 0TNzt9SWggDfAlMt2sW7/1Cat4SRWzGW1MC3jReg/gDKqgnp274GDjanq5LEQuYwKK o8blznHtlaLByL3ZzrLNBNpqTZUlN/pPryWWywztYgVF98KrkLbkaqnr2XzL3z2oCi 5cceIc8VhkyhGIhtkF7KK0JX8dBZL5+GsL8hb44pxzMwIDnmz+xlKOwwuqSuLAtm4W /WgoCS8wD9CFQ== Date: Mon, 21 Aug 2023 11:42:47 +0100 From: Will Deacon To: Michael Shavit Cc: iommu@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, robin.murphy@arm.com, jean-philippe@linaro.org, jgg@nvidia.com, nicolinc@nvidia.com Subject: Re: [PATCH v6 09/10] iommu/arm-smmu-v3: Skip cd sync if CD table isn't active Message-ID: <20230821104247.GA19469@willie-the-truck> References: <20230816131925.2521220-1-mshavit@google.com> <20230816211849.v6.9.Idedc0f496231e2faab3df057219c5e2d937bbfe4@changeid> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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-20230821_034254_691013_9528A8FC X-CRM114-Status: GOOD ( 18.21 ) 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: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCBBdWcgMjEsIDIwMjMgYXQgMDY6MTY6MDhQTSArMDgwMCwgTWljaGFlbCBTaGF2aXQg d3JvdGU6Cj4gT24gV2VkLCBBdWcgMTYsIDIwMjMgYXQgOToyMOKAr1BNIE1pY2hhZWwgU2hhdml0 IDxtc2hhdml0QGdvb2dsZS5jb20+IHdyb3RlOgo+ID4KPiA+IFRoaXMgY29tbWl0IGV4cGxpY2l0 bHkga2VlcHMgdHJhY2sgb2Ygd2hldGhlciBhIENEIHRhYmxlIGlzIGluc3RhbGxlZCBpbgo+ID4g YW4gU1RFIHNvIHRoYXQgYXJtX3NtbXVfc3luY19jZCBjYW4gc2tpcCB0aGUgc3luYyB3aGVuIHVu bmVjZXNzYXJ5LiBUaGlzCj4gPiB3YXMgcHJldmlvdXNseSBhY2hpZXZlZCB0aHJvdWdoIHRoZSBk b21haW4tPmRldmljZXMgbGlzdCwgYnV0IHdlIGFyZQo+ID4gbW92aW5nIHRvIGEgbW9kZWwgd2hl cmUgYXJtX3NtbXVfc3luY19jZCBkaXJlY3RseSBvcGVyYXRlcyBvbiBhIG1hc3Rlcgo+ID4gYW5k IHRoZSBtYXN0ZXIncyBDRCB0YWJsZSBpbnN0ZWFkIG9mIGEgZG9tYWluLgo+ID4KPiA+IFJldmll d2VkLWJ5OiBKYXNvbiBHdW50aG9ycGUgPGpnZ0BudmlkaWEuY29tPgo+ID4gUmV2aWV3ZWQtYnk6 IE5pY29saW4gQ2hlbiA8bmljb2xpbmNAbnZpZGlhLmNvbT4KPiA+IFNpZ25lZC1vZmYtYnk6IE1p Y2hhZWwgU2hhdml0IDxtc2hhdml0QGdvb2dsZS5jb20+Cj4gPiAtLS0KPiA+IEhhcHB5IHRvIGRy b3AgdGhpcyBjb21taXQgaWYgd2UgZG9uJ3QgdGhpbmsgaXQncyB1c2VmdWwuCj4gCj4gSGkgV2ls bCwKPiBEbyB5b3UgaGF2ZSBhbnkgcmVjb21tZW5kYXRpb25zIGZvciBrZWVwaW5nIG9yIGRyb3Bw aW5nIHRoaXMgY29tbWl0IGluCj4gdGhlIGVuZD8gSXQncyBvbmx5IHB1cnBvc2UgaXMgdG8gbWlu aW1pemUgYW55IHBvdGVudGlhbCBwZXJmb3JtYW5jZQo+IGltcGFjdCBmcm9tIHRoZSByZWZhY3Rv ciBidXQgY2FuIGNlcnRhaW5seSBiZSBkcm9wcGVkIGlmIHlvdSBkb24ndAo+IHRoaW5rIGl0J3Mg d29ydGggdGhlIGNvbXBsaWNhdGlvbi4KCkknZCBwcmVmZXIgdG8gZHJvcCBpdCB1bmxlc3Mgc29t ZWJvZHkgY2FuIG1lYXN1cmUgdGhlIGJlbmVmaXRzIHRoYXQgaXQKYnJpbmdzLgoKV2lsbAoKX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtl cm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0 dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5l bAo=