From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC1F870 for ; Fri, 4 Jun 2021 09:02:33 +0000 (UTC) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-237-NXl5cs6NMkGVq-pfDNrTRg-1; Fri, 04 Jun 2021 10:02:30 +0100 X-MC-Unique: NXl5cs6NMkGVq-pfDNrTRg-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; Fri, 4 Jun 2021 10:02:29 +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; Fri, 4 Jun 2021 10:02:29 +0100 From: David Laight To: 'Palmer Dabbelt' , Anup Patel CC: "guoren@kernel.org" , "anup@brainfault.org" , "drew@beagleboard.org" , Christoph Hellwig , "wefu@redhat.com" , "lazyparser@gmail.com" , "linux-riscv@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "linux-sunxi@lists.linux.dev" , "guoren@linux.alibaba.com" , Paul Walmsley Subject: RE: [PATCH RFC 0/3] riscv: Add DMA_COHERENT support Thread-Topic: [PATCH RFC 0/3] riscv: Add DMA_COHERENT support Thread-Index: AQHXWI67+E+HbgFRkkm3Xv2DTkp7y6sDjh4w Date: Fri, 4 Jun 2021 09:02:29 +0000 Message-ID: References: In-Reply-To: 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] X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: 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 RnJvbTogUGFsbWVyIERhYmJlbHQNCj4gU2VudDogMDMgSnVuZSAyMDIxIDE2OjM5DQouLi4NCj4g QW4gZXhhbXBsZSBoZXJlIHdvdWxkIGJlIHRoZSBlcnJhdGE6IGV2ZXJ5IHN5c3RlbSBoYXMgZXJy YXRhIG9mIHNvbWUNCj4gc29ydCwgc28gaWYgd2Ugc3RhcnQgZmxpcHBpbmcgb2ZmIHZhcmlvdXMg dmVuZG9yJ3MgZXJyYXRhIEtjb25maWdzDQo+IHlvdSdsbCBlbmQgdXAgd2l0aCBrZXJuZWxzIHRo YXQgb25seSBmdW5jdGlvbiBwcm9wZXJseSBvbiBzb21lIHN5c3RlbXMuDQo+IFRoYXQncyBmaW5l IHdpdGggbWUsIGFzIGxvbmcgYXMgaXQncyBwb3NzaWJsZSB0byB0dXJuIG9uIGFsbCB2ZW5kb3In cw0KPiBlcnJhdGEgS2NvbmZpZ3MgYXQgdGhlIHNhbWUgdGltZSBhbmQgdGhlIHJlc3VsdGluZyBr ZXJuZWwgZnVuY3Rpb25zDQo+IGNvcnJlY3RseSBvbiBhbGwgc3lzdGVtcy4NCg0KSVNUTSB0aGF0 IGlmIHlvdSBjYW4gKGVhc2lseSkgZGV0ZWN0IHRoZSBlcnJhdGEgdGhlbiB0aGUgZGV0ZWN0aW9u DQpzaG91bGQgYmUgbGVmdCBpdCAtIGJ1dCB0aGUga2VybmVsIGZhaWwgdG8gYm9vdCBpZiB0aGUg c3lzdGVtDQpuZWVkcyB0aGUgZXJyYXRhIGZpeGVkLg0KDQpUaGUgc2FtZSB3b3VsZCBiZSBuZWVk ZWQgZm9yIERNQSBpbiBzeXN0ZW1zIHdpdGggbm9uLWNvaGVyZW50IG1lbW9yeS4NCg0KT25seSBh IGhhcmR3YXJlIGVuZ2luZWVyIHdvdWxkIGJ1aWxkIGEgc3lzdGVtIHdpdGggbm9uLWNvaGVyZW50 IG1lbW9yeQ0KYW5kIHdpdGhvdXQgdGhlIGFiaWxpdHkgdG8gZG8gdW5jYWNoZWQgYWNjZXNzZXMg YW5kIGZsdXNoL2ludmFsaWRhdGUNCnNtYWxsIHNlY3Rpb25zIG9mIGNhY2hlLg0KDQpNaW5kIHlv dSB3ZSBkaWQgZ2V0IGEgZHVhbC1jcHUgc3lzdGVtIHRoYXQgZGlkbid0IGhhdmUgY2FjaGUtY29o ZXJlbmN5DQpiZXR3ZWVuIHRoZSBjcHVzISBUaGF0IHdhcyBzaW5ndWxhcmx5IHVzZWxlc3MuDQoN CglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwg TW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywgTUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzog MTM5NzM4NiAoV2FsZXMpDQo=