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 3F998C433F5 for ; Mon, 16 May 2022 10:46:21 +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-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=uSnctypAxEcOGo4vyex9fLxNZHcix06qWv03p0Ojxw0=; b=YGzZ1D+FxpXTkl rBSaPzzxNhMHkxvvPkMNhplzeoI4A4ZHc88FrVzSIUsi4b65bf/hJ6KPhzIbCYUUOhUk/DjoRZ7h0 tyR0uU5P3vfkP0OBuinaoNVoTpxsZ68SxSi4hHTtUpBAVcXxVJWCitCxSmRiS1Rk4rgl2pNK+npNr KFTrOU+Y2u5o7QSmvTqASIHi6gxRy35spsunZa6Bm6cbYuAtaY3nzrsR1MmJBAzxQ0R9RGGOJRFfA p1NDNEzVJtd7zo4IPMxPAvSgLAhlmUT+VD+gDmqwfM3XZteU51g/jEUVcQze6N4KZ3dseunVwjCfQ 8XmMn5J5S9SPcWWR6LLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nqYDh-007Ag7-VS; Mon, 16 May 2022 10:44:58 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nqYDd-007Act-Rr for linux-arm-kernel@lists.infradead.org; Mon, 16 May 2022 10:44:55 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id DC6CC1063; Mon, 16 May 2022 03:44:48 -0700 (PDT) Received: from [10.57.82.175] (unknown [10.57.82.175]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 849D83F66F; Mon, 16 May 2022 03:44:46 -0700 (PDT) Message-ID: <099cf0f9-5c27-0247-7c5e-6704a9527b11@arm.com> Date: Mon, 16 May 2022 11:44:41 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:91.0) Gecko/20100101 Thunderbird/91.9.0 Subject: Re: [PATCH v5 5/9] iommu/arm-smmu: Attach to host1x context device bus Content-Language: en-GB To: Mikko Perttunen , Will Deacon Cc: thierry.reding@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, robh+dt@kernel.org, krzysztof.kozlowski@canonical.com, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Mikko Perttunen References: <20220516085258.1227691-1-cyndis@kapsi.fi> <20220516085258.1227691-6-cyndis@kapsi.fi> <20220516100721.GA1927@willie-the-truck> <4a170997-c893-1788-dcaa-8ed2193146ae@kapsi.fi> From: Robin Murphy In-Reply-To: <4a170997-c893-1788-dcaa-8ed2193146ae@kapsi.fi> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220516_034453_987743_B935DD86 X-CRM114-Status: GOOD ( 13.76 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMjAyMi0wNS0xNiAxMToxMywgTWlra28gUGVydHR1bmVuIHdyb3RlOgo+IE9uIDUvMTYvMjIg MTM6MDcsIFdpbGwgRGVhY29uIHdyb3RlOgo+PiBPbiBNb24sIE1heSAxNiwgMjAyMiBhdCAxMTo1 Mjo1NEFNICswMzAwLCBjeW5kaXNAa2Fwc2kuZmkgd3JvdGU6Cj4+PiBGcm9tOiBNaWtrbyBQZXJ0 dHVuZW4gPG1wZXJ0dHVuZW5AbnZpZGlhLmNvbT4KPj4+Cj4+PiBTZXQgaXRzZWxmIGFzIHRoZSBJ T01NVSBmb3IgdGhlIGhvc3QxeCBjb250ZXh0IGRldmljZSBidXMsIGNvbnRhaW5pbmcKPj4+ICJk dW1teSIgZGV2aWNlcyB1c2VkIGZvciBIb3N0MXggY29udGV4dCBpc29sYXRpb24uCj4+Pgo+Pj4g U2lnbmVkLW9mZi1ieTogTWlra28gUGVydHR1bmVuIDxtcGVydHR1bmVuQG52aWRpYS5jb20+Cj4+ PiAtLS0KPj4+IMKgIGRyaXZlcnMvaW9tbXUvYXJtL2FybS1zbW11L2FybS1zbW11LmMgfCAxMyAr KysrKysrKysrKysrCj4+PiDCoCAxIGZpbGUgY2hhbmdlZCwgMTMgaW5zZXJ0aW9ucygrKQo+Pj4K Pj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2lvbW11L2FybS9hcm0tc21tdS9hcm0tc21tdS5jIAo+ Pj4gYi9kcml2ZXJzL2lvbW11L2FybS9hcm0tc21tdS9hcm0tc21tdS5jCj4+PiBpbmRleCA1Njhj Y2U1OTBjY2MuLjlmZjU0ZWFlY2Y4MSAxMDA2NDQKPj4+IC0tLSBhL2RyaXZlcnMvaW9tbXUvYXJt L2FybS1zbW11L2FybS1zbW11LmMKPj4+ICsrKyBiL2RyaXZlcnMvaW9tbXUvYXJtL2FybS1zbW11 L2FybS1zbW11LmMKPj4+IEBAIC0zOSw2ICszOSw3IEBACj4+PiDCoCAjaW5jbHVkZSA8bGludXgv YW1iYS9idXMuaD4KPj4+IMKgICNpbmNsdWRlIDxsaW51eC9mc2wvbWMuaD4KPj4+ICsjaW5jbHVk ZSA8bGludXgvaG9zdDF4X2NvbnRleHRfYnVzLmg+Cj4+PiDCoCAjaW5jbHVkZSAiYXJtLXNtbXUu aCIKPj4+IEBAIC0yMDUzLDggKzIwNTQsMjAgQEAgc3RhdGljIGludCBhcm1fc21tdV9idXNfaW5p dChzdHJ1Y3QgaW9tbXVfb3BzIAo+Pj4gKm9wcykKPj4+IMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDC oMKgIGdvdG8gZXJyX3Jlc2V0X3BjaV9vcHM7Cj4+PiDCoMKgwqDCoMKgIH0KPj4+IMKgICNlbmRp Zgo+Pj4gKyNpZmRlZiBDT05GSUdfVEVHUkFfSE9TVDFYX0NPTlRFWFRfQlVTCj4+PiArwqDCoMKg IGlmICghaW9tbXVfcHJlc2VudCgmaG9zdDF4X2NvbnRleHRfZGV2aWNlX2J1c190eXBlKSkgewo+ Pj4gK8KgwqDCoMKgwqDCoMKgIGVyciA9IGJ1c19zZXRfaW9tbXUoJmhvc3QxeF9jb250ZXh0X2Rl dmljZV9idXNfdHlwZSwgb3BzKTsKPj4+ICvCoMKgwqDCoMKgwqDCoCBpZiAoZXJyKQo+Pj4gK8Kg wqDCoMKgwqDCoMKgwqDCoMKgwqAgZ290byBlcnJfcmVzZXRfZnNsX21jX29wczsKPj4+ICvCoMKg wqAgfQo+Pj4gKyNlbmRpZgo+Pj4gKwo+Pj4gwqDCoMKgwqDCoCByZXR1cm4gMDsKPj4+ICtlcnJf cmVzZXRfZnNsX21jX29wczogX19tYXliZV91bnVzZWQ7Cj4+PiArI2lmZGVmIENPTkZJR19GU0xf TUNfQlVTCj4+PiArwqDCoMKgIGJ1c19zZXRfaW9tbXUoJmZzbF9tY19idXNfdHlwZSwgTlVMTCk7 Cj4+PiArI2VuZGlmCj4+Cj4+IGJ1c19zZXRfaW9tbXUoKSBpcyBnb2luZyBhd2F5Ogo+Pgo+PiBo dHRwczovL2xvcmUua2VybmVsLm9yZy9yL2NvdmVyLjE2NTA4OTA2MzguZ2l0LnJvYmluLm11cnBo eUBhcm0uY29tCj4+Cj4+IFdpbGwKPiAKPiBUaGFua3MgZm9yIHRoZSBoZWFkcy11cC4gUm9iaW4g aGFkIHBvaW50ZWQgb3V0IHRoYXQgdGhpcyB3b3JrIHdhcyAKPiBvbmdvaW5nIGJ1dCBJIGhhZG4n dCBzZWVuIHRoZSBwYXRjaGVzIHlldC4gSSdsbCBsb29rIGludG8gaXQuCgpBbHRob3VnaCB0aGF0 ICppcyogY3VycmVudGx5IGJsb2NrZWQgb24gdGhlIG15c3RlcnkgaW50ZWwtaW9tbXUgcHJvYmxl bSAKdGhhdCBJIGNhbid0IHJlcHJvZHVjZS4uLiBJZiB0aGlzIHNlcmllcyBpcyByZWFkeSB0byBs YW5kIHJpZ2h0IG5vdyBmb3IgCjUuMTkgdGhlbiBpbiBwcmluY2lwbGUgdGhhdCBtaWdodCBiZSB0 aGUgZWFzaWVzdCBvcHRpb24gb3ZlcmFsbC4gCkhvcGVmdWxseSBhdCBsZWFzdCBwYXRjaCAjMiBj b3VsZCBzbmVhayBpbiBzbyB0aGF0IHRoZSBjb21waWxlLXRpbWUgCmRlcGVuZGVuY2llcyBhcmUg cmVhZHkgZm9yIG1lIHRvIHJvbGwgdXAgaG9zdDF4IGludG8gdGhlIG5leHQgcmViYXNlIG9mIAoi aW9tbXU6IEFsd2F5cyByZWdpc3RlciBidXMgbm90aWZpZXJzIi4KCkNoZWVycywKUm9iaW4uCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0t a2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcK aHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2Vy bmVsCg==