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spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 559CE40350; Mon, 14 Jun 2021 10:15:25 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 5r2bQGwjefuj; Mon, 14 Jun 2021 10:15:24 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp4.osuosl.org (Postfix) with ESMTPS id 3419C40351; Mon, 14 Jun 2021 10:15:24 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id E1B95C000E; Mon, 14 Jun 2021 10:15:23 +0000 (UTC) Received: from smtp2.osuosl.org (smtp2.osuosl.org [IPv6:2605:bc80:3010::133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 14B33C000B for ; Mon, 14 Jun 2021 10:15:22 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id E8F6040169 for ; Mon, 14 Jun 2021 10:15:21 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id tQOGHfrUr_GZ for ; Mon, 14 Jun 2021 10:15:21 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp2.osuosl.org (Postfix) with ESMTP id 3492C40168 for ; Mon, 14 Jun 2021 10:15:21 +0000 (UTC) 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 8C8EF1FB; Mon, 14 Jun 2021 03:15:20 -0700 (PDT) Received: from [10.57.9.136] (unknown [10.57.9.136]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A89943F694; Mon, 14 Jun 2021 03:15:18 -0700 (PDT) Subject: Re: [PATCH v5 6/8] iommu/arm-smmu-v3: Get associated RMR info and install To: Shameer Kolothum , linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, iommu@lists.linux-foundation.org References: <20210524110222.2212-1-shameerali.kolothum.thodi@huawei.com> <20210524110222.2212-7-shameerali.kolothum.thodi@huawei.com> From: Robin Murphy Message-ID: <02fba77a-6180-e8dc-8d62-d95987d536f9@arm.com> Date: Mon, 14 Jun 2021 11:15:13 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 In-Reply-To: <20210524110222.2212-7-shameerali.kolothum.thodi@huawei.com> Content-Language: en-GB Cc: jon@solid-run.com, linuxarm@huawei.com, steven.price@arm.com, guohanjun@huawei.com, yangyicong@huawei.com, Sami.Mujawar@arm.com, wanghuiqiang@huawei.com X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" T24gMjAyMS0wNS0yNCAxMjowMiwgU2hhbWVlciBLb2xvdGh1bSB3cm90ZToKPiBDaGVjayBpZiB0 aGVyZSBpcyBhbnkgUk1SIGluZm8gYXNzb2NpYXRlZMKgd2l0aCB0aGUgZGV2aWNlcyBiZWhpbmQK PiB0aGUgU01NVXYzIGFuZCBpZiBhbnksIGluc3RhbGwgYnlwYXNzIFNURXMgZm9yIHRoZW0uIFRo aXMgaXMgdG8KPiBrZWVwIGFueSBvbmdvaW5nIHRyYWZmaWMgYXNzb2NpYXRlZCB3aXRoIHRoZXNl IGRldmljZXMgYWxpdmUKPiB3aGVuIHdlIGVuYWJsZS9yZXNldCBTTU1VdjMgZHVyaW5nIHByb2Jl KCkuCj4gCj4gU2lnbmVkLW9mZi1ieTogU2hhbWVlciBLb2xvdGh1bSA8c2hhbWVlcmFsaS5rb2xv dGh1bS50aG9kaUBodWF3ZWkuY29tPgo+IC0tLQo+ICAgZHJpdmVycy9pb21tdS9hcm0vYXJtLXNt bXUtdjMvYXJtLXNtbXUtdjMuYyB8IDM2ICsrKysrKysrKysrKysrKysrKysrKwo+ICAgMSBmaWxl IGNoYW5nZWQsIDM2IGluc2VydGlvbnMoKykKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9pb21t dS9hcm0vYXJtLXNtbXUtdjMvYXJtLXNtbXUtdjMuYyBiL2RyaXZlcnMvaW9tbXUvYXJtL2FybS1z bW11LXYzL2FybS1zbW11LXYzLmMKPiBpbmRleCBmOTE5NWI3NDBmNDguLmJlMTU2M2UwNjczMiAx MDA2NDQKPiAtLS0gYS9kcml2ZXJzL2lvbW11L2FybS9hcm0tc21tdS12My9hcm0tc21tdS12My5j Cj4gKysrIGIvZHJpdmVycy9pb21tdS9hcm0vYXJtLXNtbXUtdjMvYXJtLXNtbXUtdjMuYwo+IEBA IC0zNTc0LDYgKzM1NzQsMzkgQEAgc3RhdGljIHZvaWQgX19pb21lbSAqYXJtX3NtbXVfaW9yZW1h cChzdHJ1Y3QgZGV2aWNlICpkZXYsIHJlc291cmNlX3NpemVfdCBzdGFydCwKPiAgIAlyZXR1cm4g ZGV2bV9pb3JlbWFwX3Jlc291cmNlKGRldiwgJnJlcyk7Cj4gICB9Cj4gICAKPiArc3RhdGljIHZv aWQgYXJtX3NtbXVfcm1yX2luc3RhbGxfYnlwYXNzX3N0ZShzdHJ1Y3QgYXJtX3NtbXVfZGV2aWNl ICpzbW11KQo+ICt7Cj4gKwlzdHJ1Y3QgbGlzdF9oZWFkIHJtcl9saXN0Owo+ICsJc3RydWN0IGlv bW11X3Jlc3ZfcmVnaW9uICplOwo+ICsJaW50IHJldDsKPiArCj4gKwlJTklUX0xJU1RfSEVBRCgm cm1yX2xpc3QpOwo+ICsJaWYgKGlvbW11X2RtYV9nZXRfcm1ycyhkZXZfZndub2RlKHNtbXUtPmRl diksICZybXJfbGlzdCkpCj4gKwkJcmV0dXJuOwo+ICsKPiArCS8qCj4gKwkgKiBTaW5jZSwgd2Ug ZG9uJ3QgaGF2ZSBhIG1lY2hhbmlzbSB0byBkaWZmZXJlbnRpYXRlIHRoZSBSTVIKPiArCSAqIFNJ RHMgdGhhdCBoYXMgYW4gb25nb2luZyBsaXZlIHN0cmVhbSwgaW5zdGFsbCBieXBhc3MgU1RFcwo+ ICsJICogZm9yIGFsbCB0aGUgcmVwb3J0ZWQgb25lcy4KPiArCSAqLwoKSSBkb24ndCByZWFsbHkg Zm9sbG93IHRoYXQgY29tbWVudC4gVGhlIHBvaW50IG9mIGJlaW5nIHJlc2VydmVkIGlzIHRoYXQg CndlIGRvbid0IGtub3cgaG93IGFuZCB3aHkgdGhlIGRldmljZSBpcyB1c2luZyB0aGVtLCBhbmQg d2UgaGF2ZSBsaXR0bGUgCm5lZWQgdG8gY2FyZSAtIHdlIGFyZSBzaW1wbHkgcmVxdWlyZWQgdG8g cHJlc2VydmUgYW4gZWZmZWN0aXZlIHVuaXR5IAptYXBwaW5nIGF0IGFsbCB0aW1lcy4gSSBkb24n dCBzZWUgYW55IHZhbHVlIGluIHRyeWluZyB0byBzZWNvbmQtZ3Vlc3MgCnRoaW5ncyBiZXlvbmQg dGhhdCwgYXMgdGhpcyBhcHBlYXJzIHRvIHN1Z2dlc3QuCgpSb2Jpbi4KCj4gKwlsaXN0X2Zvcl9l YWNoX2VudHJ5KGUsICZybXJfbGlzdCwgbGlzdCkgewo+ICsJCV9fbGU2NCAqc3RlcDsKPiArCQl1 MzIgc2lkID0gZS0+ZndfZGF0YS5ybXIuc2lkOwo+ICsKPiArCQlyZXQgPSBhcm1fc21tdV9pbml0 X3NpZF9zdHJ0YWIoc21tdSwgc2lkKTsKPiArCQlpZiAocmV0KSB7Cj4gKwkJCWRldl9lcnIoc21t dS0+ZGV2LCAiUk1SIGJ5cGFzcygweCV4KSBmYWlsZWRcbiIsCj4gKwkJCQlzaWQpOwo+ICsJCQlj b250aW51ZTsKPiArCQl9Cj4gKwo+ICsJCXN0ZXAgPSBhcm1fc21tdV9nZXRfc3RlcF9mb3Jfc2lk KHNtbXUsIHNpZCk7Cj4gKwkJYXJtX3NtbXVfd3JpdGVfc3RydGFiX2VudChOVUxMLCBzaWQsIHN0 ZXAsIHRydWUpOwo+ICsJfQo+ICsKPiArCWlvbW11X2RtYV9wdXRfcm1ycyhkZXZfZndub2RlKHNt bXUtPmRldiksICZybXJfbGlzdCk7Cj4gK30KPiArCj4gICBzdGF0aWMgaW50IGFybV9zbW11X2Rl dmljZV9wcm9iZShzdHJ1Y3QgcGxhdGZvcm1fZGV2aWNlICpwZGV2KQo+ICAgewo+ICAgCWludCBp cnEsIHJldDsKPiBAQCAtMzY1Nyw2ICszNjkwLDkgQEAgc3RhdGljIGludCBhcm1fc21tdV9kZXZp Y2VfcHJvYmUoc3RydWN0IHBsYXRmb3JtX2RldmljZSAqcGRldikKPiAgIAkvKiBSZWNvcmQgb3Vy IHByaXZhdGUgZGV2aWNlIHN0cnVjdHVyZSAqLwo+ICAgCXBsYXRmb3JtX3NldF9kcnZkYXRhKHBk ZXYsIHNtbXUpOwo+ICAgCj4gKwkvKiBDaGVjayBmb3IgUk1ScyBhbmQgaW5zdGFsbCBieXBhc3Mg U1RFcyBpZiBhbnkgKi8KPiArCWFybV9zbW11X3Jtcl9pbnN0YWxsX2J5cGFzc19zdGUoc21tdSk7 Cj4gKwo+ICAgCS8qIFJlc2V0IHRoZSBkZXZpY2UgKi8KPiAgIAlyZXQgPSBhcm1fc21tdV9kZXZp Y2VfcmVzZXQoc21tdSwgYnlwYXNzKTsKPiAgIAlpZiAocmV0KQo+IApfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVA bGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24u b3JnL21haWxtYW4vbGlzdGluZm8vaW9tbXU=