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 X-Spam-Level: X-Spam-Status: No, score=-5.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9229AC433E0 for ; Tue, 30 Jun 2020 12:44:32 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 5BC8420780 for ; Tue, 30 Jun 2020 12:44:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="P9qIW2Ud"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="puWqgxQA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5BC8420780 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=/jdQU98I0ETq/1wVIfLUTMta1oMp+qcDhA9SWOdCXYc=; b=P9qIW2UdG8fZwTHASInGUVEhg r8Sf7MWYtkAra/3DRwv3IYZnj87iQp7ojh/0qWuqGYxOKARnsR6j6Ss9G+Rbcsp5OAUduIT99Yf2W Yl6wFG4xx0VpGHihu0eIdB5VjMrDVl7NAARAeSRhJpoyND0ZB5oe+FFAB5gBZCcFQL4FreA4Ik3EP IWbXVV+6IXPUFl4vgQcZTjm/ollS4c/nozSlK7efC6LMhgq+a27pgzfVmVNl4E7X0zoyzb4EUto9d I/mdMo+y9foE9FjIUAgt647I1g0MtUtEySN2fWLI5Nuss5I7+1V4aeefTwRSQdwI8FzFs8ARQ8QIH ZYfnFV0rQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jqFbQ-0007FY-7W; Tue, 30 Jun 2020 12:43:08 +0000 Received: from hqnvemgate25.nvidia.com ([216.228.121.64]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jqFbN-0007Ea-Jv for linux-arm-kernel@lists.infradead.org; Tue, 30 Jun 2020 12:43:06 +0000 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate25.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Tue, 30 Jun 2020 05:42:12 -0700 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Tue, 30 Jun 2020 05:43:01 -0700 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Tue, 30 Jun 2020 05:43:01 -0700 Received: from [10.26.75.203] (10.124.1.5) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 30 Jun 2020 12:42:54 +0000 Subject: Re: [PATCH v8 3/3] iommu/arm-smmu: Add global/context fault implementation hooks To: Robin Murphy , Krishna Reddy References: <20200630001051.12350-1-vdumpa@nvidia.com> <20200630001051.12350-4-vdumpa@nvidia.com> <4b4b20af-7baa-0987-e40d-af74235153f6@nvidia.com> <6c2ce909-c71b-351f-79f5-b1a4b4c0e4ac@arm.com> From: Jon Hunter Message-ID: Date: Tue, 30 Jun 2020 13:42:52 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 MIME-Version: 1.0 In-Reply-To: <6c2ce909-c71b-351f-79f5-b1a4b4c0e4ac@arm.com> X-Originating-IP: [10.124.1.5] X-ClientProxiedBy: HQMAIL105.nvidia.com (172.20.187.12) To HQMAIL107.nvidia.com (172.20.187.13) Content-Language: en-US DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1593520932; bh=hK3xWsoaF4cxDik6Mhq5qaTx82gKOLvVl8GbV1br+EM=; h=X-PGP-Universal:Subject:To:CC:References:From:Message-ID:Date: User-Agent:MIME-Version:In-Reply-To:X-Originating-IP: X-ClientProxiedBy:Content-Type:Content-Language: Content-Transfer-Encoding; b=puWqgxQA8yIruffJjHDVkJAi+UFOYN1pn9OAiXwGvywkKRxjWFtBhUaip1YoThldr i6NHZ/dtKAjI+ln4Q1pE/KqNNlnUyluMJWqRyzuo/t91r1WMqbicqPfWCCQfx+fvuQ 9NXOzVNUNZWMkxYN5++mPnQCMwjlfc9ZOiifR0/dSrwRbbHDHUpyGt6S6pI2K1RXDB xuE3VAKgS4D2NXdlBAtGsx9f6aNRLRdRZV1Cq3f/maRdn2uW4ti2PRd18RZPpqrg4e LqvR5JhOSxqw0tbBOpNj9MgYkrYITBUBAcsKIlpbugPsPSgP09fFVixBvKQSSvPNMp STDwB7x62E+0g== X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: talho@nvidia.com, treding@nvidia.com, bhuntsman@nvidia.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, mperttunen@nvidia.com, nicoleotsuka@gmail.com, snikam@nvidia.com, nicolinc@nvidia.com, linux-tegra@vger.kernel.org, yhsu@nvidia.com, praithatha@nvidia.com, will@kernel.org, linux-arm-kernel@lists.infradead.org, bbiswas@nvidia.com 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 Ck9uIDMwLzA2LzIwMjAgMTM6MTMsIFJvYmluIE11cnBoeSB3cm90ZToKPiBPbiAyMDIwLTA2LTMw IDA5OjM3LCBKb24gSHVudGVyIHdyb3RlOgo+Pgo+PiBPbiAzMC8wNi8yMDIwIDAxOjEwLCBLcmlz aG5hIFJlZGR5IHdyb3RlOgo+Pj4gQWRkIGdsb2JhbC9jb250ZXh0IGZhdWx0IGhvb2tzIHRvIGFs bG93IE5WSURJQSBTTU1VIGltcGxlbWVudGF0aW9uCj4+PiBoYW5kbGUgZmF1bHRzIGFjcm9zcyBt dWx0aXBsZSBTTU1Vcy4KPj4KPj4gTml0IC4uLiB0aGlzIGlzIG5vdCBqdXN0IGZvciBOVklESUEs IGJ1dCB0aGlzIGFsbG93cyBhbnlvbmUgdG8gYWRkCj4+IGN1c3RvbSBnbG9iYWwvY29udGV4dCBh bmQgZmF1bHQgaG9va3MuIFNvIEkgdGhpbmsgdGhhdCB0aGUgY2hhbmdlbG9nCj4+IHNob3VsZCBi ZSBjbGVhciB0aGF0IHRoaXMgY2hhbmdlIHBlcm1pdHMgY3VzdG9tIGZhdWx0IGhvb2tzIGFuZCB0 aGF0Cj4+IGN1c3RvbSBmYXVsdCBob29rcyBhcmUgbmVlZGVkIGZvciB0aGUgVGVncmExOTQgU01N VS4gWW91IG1heSBhbHNvIHdhbnQKPj4gdG8gc2F5IHdoeS4KPj4KPj4+Cj4+PiBTaWduZWQtb2Zm LWJ5OiBLcmlzaG5hIFJlZGR5IDx2ZHVtcGFAbnZpZGlhLmNvbT4KPj4+IC0tLQo+Pj4gwqAgZHJp dmVycy9pb21tdS9hcm0tc21tdS1udmlkaWEuYyB8IDk4ICsrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKwo+Pj4gwqAgZHJpdmVycy9pb21tdS9hcm0tc21tdS5jwqDCoMKgwqDCoMKgwqAg fCAxNyArKysrKy0KPj4+IMKgIGRyaXZlcnMvaW9tbXUvYXJtLXNtbXUuaMKgwqDCoMKgwqDCoMKg IHzCoCAzICsKPj4+IMKgIDMgZmlsZXMgY2hhbmdlZCwgMTE2IGluc2VydGlvbnMoKyksIDIgZGVs ZXRpb25zKC0pCgouLi4KCj4+PiBAQCAtODM1LDcgKzgzNiwxMyBAQCBzdGF0aWMgaW50IGFybV9z bW11X2luaXRfZG9tYWluX2NvbnRleHQoc3RydWN0Cj4+PiBpb21tdV9kb21haW4gKmRvbWFpbiwK Pj4+IMKgwqDCoMKgwqDCoCAqIGhhbmRsZXIgc2VlaW5nIGEgaGFsZi1pbml0aWFsaXNlZCBkb21h aW4gc3RhdGUuCj4+PiDCoMKgwqDCoMKgwqAgKi8KPj4+IMKgwqDCoMKgwqAgaXJxID0gc21tdS0+ aXJxc1tzbW11LT5udW1fZ2xvYmFsX2lycXMgKyBjZmctPmlycHRuZHhdOwo+Pj4gLcKgwqDCoCBy ZXQgPSBkZXZtX3JlcXVlc3RfaXJxKHNtbXUtPmRldiwgaXJxLCBhcm1fc21tdV9jb250ZXh0X2Zh dWx0LAo+Pj4gKwo+Pj4gK8KgwqDCoCBpZiAoc21tdS0+aW1wbCAmJiBzbW11LT5pbXBsLT5jb250 ZXh0X2ZhdWx0KQo+Pj4gK8KgwqDCoMKgwqDCoMKgIGNvbnRleHRfZmF1bHQgPSBzbW11LT5pbXBs LT5jb250ZXh0X2ZhdWx0Owo+Pj4gK8KgwqDCoCBlbHNlCj4+PiArwqDCoMKgwqDCoMKgwqAgY29u dGV4dF9mYXVsdCA9IGFybV9zbW11X2NvbnRleHRfZmF1bHQ7Cj4+Cj4+IFdoeSBub3Qgc2VlIHRo ZSBkZWZhdWx0IHNtbXUtPmltcGwtPmNvbnRleHRfZmF1bHQgdG8KPj4gYXJtX3NtbXVfY29udGV4 dF9mYXVsdCBpbiBhcm1fc21tdV9pbXBsX2luaXQoKSBhbmQgdGhlbiBhbGxvdyB0aGUKPj4gdmFy aW91cyBpbXBsZW1lbnRhdGlvbnMgdG8gb3ZlcnJpZGUgYXMgbmVjZXNzYXJ5PyBUaGVuIHlvdSBj YW4gZ2V0IHJpZAo+PiBvZiB0aGlzIGNvbnRleHRfZmF1bHQgdmFyaWFibGUgaGVyZSBhbmQganVz dCB1c2UKPj4gc21tdS0+aW1wbC0+Y29udGV4dF9mYXVsdCBiZWxvdy4KPiAKPiBCZWNhdXNlIHRo ZSBkZWZhdWx0IHNtbXUtPmltcGwgaXMgTlVMTC4gQW5kIGFzIEkndmUgc2FpZCBiZWZvcmUsIE5B SyB0bwo+IGZvcmNpbmcgdGhlIGNvbW1vbiBjYXNlIHRvIGFsbG9jYXRlIGEgc2V0IG9mICJxdWly a3MiIHB1cmVseSB0byBvdmVycmlkZQo+IHRoZSBkZWZhdWx0IElSUSBoYW5kbGVyIHdpdGggdGhl IGRlZmF1bHQgSVJRIGhhbmRsZXIgOykKCgpBaCBPSywgbWFrZXMgc2Vuc2UuIFNvcnJ5IEkgYW0g YSBiaXQgbGF0ZSB0byB0aGUgcmV2aWV3IDotKQoKSm9uCgotLSAKbnZwdWJsaWMKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwg bWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8v bGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK