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[23.128.96.18]) by mx.google.com with ESMTP id p21si1546014ejn.49.2021.06.08.22.54.11; Tue, 08 Jun 2021 22:54:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231258AbhFHQNe (ORCPT + 99 others); Tue, 8 Jun 2021 12:13:34 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]:37271 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232131AbhFHQNL (ORCPT ); Tue, 8 Jun 2021 12:13:11 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-234-62pR9OyRO-SSSIbw5JosqQ-1; Tue, 08 Jun 2021 17:11:16 +0100 X-MC-Unique: 62pR9OyRO-SSSIbw5JosqQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Tue, 8 Jun 2021 17:11:15 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.018; Tue, 8 Jun 2021 17:11:15 +0100 From: David Laight To: 'Christoph Hellwig' CC: Guo Ren , Nick Kossifidis , "Drew Fustini" , Anup Patel , "Palmer Dabbelt" , "wefu@redhat.com" , =?utf-8?B?V2VpIFd1ICjlkLTkvJ8p?= , linux-riscv , Linux Kernel Mailing List , linux-arch , "linux-sunxi@lists.linux.dev" , Guo Ren , Paul Walmsley , Benjamin Koch , Matteo Croce , Wei Fu Subject: RE: [PATCH RFC 0/3] riscv: Add DMA_COHERENT support Thread-Topic: [PATCH RFC 0/3] riscv: Add DMA_COHERENT support Thread-Index: AQHXW2Yf+E+HbgFRkkm3Xv2DTkp7y6sKNaKQ///5qoCAABnpEA== Date: Tue, 8 Jun 2021 16:11:15 +0000 Message-ID: <7a11939f4c7f4494a7d86b8d5f1bb702@AcuMS.aculab.com> References: <20210519064435.GA3076809@x1> <20210519065352.GA31590@lst.de> <29733b0931d9dd6a2f0b6919067c7efe@mailhost.ics.forth.gr> <20210607062701.GB24060@lst.de> <2db975b5f24149b19191120b9f0f506b@AcuMS.aculab.com> <20210608153203.GA6802@lst.de> In-Reply-To: <20210608153203.GA6802@lst.de> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogJ0NocmlzdG9waCBIZWxsd2lnJw0KPiBTZW50OiAwOCBKdW5lIDIwMjEgMTY6MzINCj4g DQo+IE9uIFR1ZSwgSnVuIDA4LCAyMDIxIGF0IDAzOjAwOjE3UE0gKzAwMDAsIERhdmlkIExhaWdo dCB3cm90ZToNCj4gPiBJdCBpcyBhbG1vc3QgaW1wb3NzaWJsZSB0byBpbnRlcmZhY2UgdG8gbWFu eSBldGhlcm5ldCBjaGlwcyB3aXRob3V0DQo+ID4gZWl0aGVyIGNvaGVyZW50IG9yIHVuY2FjaGVk IG1lbW9yeSBmb3IgdGhlIGRlc2NyaXB0b3IgcmluZ3MuDQo+ID4gVGhlIHN0YXR1cyBiaXRzIG9u IHRoZSB0cmFuc21pdCByaW5nIGFyZSBwYXJ0aWN1bGFybHkgcHJvYmxlbWF0aWMuDQo+ID4NCj4g PiBUaGUgcmVjZWl2ZSByaW5nIGNhbiBiZSBkb25lIHdpdGggd3JpdGViYWNrK2ludmFsaWRhdGUg cHJvdmlkZWQgeW91DQo+ID4gZmlsbCBhIGNhY2hlIGxpbmUgYXQgYSB0aW1lLg0KPiANCj4gSXQg aXMgaG9ycmlibGUsIGJ1dCBpdCBoYXMgYmVlbiBkb25lLiAgVGFrZSBhIGxvb2sgYXQ6DQo+IA0K PiBkcml2ZXJzL25ldC9ldGhlcm5ldC9pODI1eHgvbGFzaV84MjU5Ni5jIGFuZA0KPiBkcml2ZXJz L25ldC9ldGhlcm5ldC9zZWVxL3NnaXNlZXEuYw0KDQpJIGd1ZXNzIHRoYXQgZWFjaCB0cmFuc21p dCBoYXMgdG8gYmUgc3BsaXQgaW50byBlbm91Z2gNCmZyYWdtZW50cyB0aGF0IHRoZXkgZmlsbCBh IGNhY2hlIGxpbmUuDQpUaGF0IHdvbid0IHdvcmsgd2l0aCBzb21lIChwcm9iYWJseSBvbGQgbm93 KSBkZXZpY2VzIHRoYXQNCnJlcXVpcmUgdGhlIGZpcnN0IGZyYWdtZW50IHRvIGJlIDY0IGJ5dGVz IGJlY2F1c2UgaXQgd29uJ3QNCmJhY2stdXAgdGhlIGRlc2NyaXB0b3JzIGFmdGVyIGEgY29sbGlz aW9uLg0KDQpJdCdzIGFsbCBhcyBob3JyaWQgYXMgYSBEU1Agd2UgaGF2ZSB0aGF0IGNhbid0IHJl Y2VpdmUgZXRoZXJuZXQNCmZyYW1lcyBvbnRvIGEgNG4rMiBib3VuZGFyeSBhbmQgZG9lc24ndCBz dXBwb3J0IG1pc2FsaWduZWQgYWNjZXNzZXMuDQoNCk1pbmQgeW91LCBTdW4ncyBvcmlnaW5hbCBT YnVzIGV0aGVybmV0IGJvYXJkIGhhZCB0byBiZSBnaXZlbg0KYSA0biBhbGlnbmVkIHJ4IGJ1ZmZl ciBhbmQgdGhlbiBhIG1pc2FsaWduZWQgY29weSBkb25lIGluIGtlcm5lbA0KaW4gb3JkZXIgdG8g bm90IGRyb3AgcGFja2V0cyENCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtl c2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBV Sw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==