From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) (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 9062942A97 for ; Fri, 23 Feb 2024 11:05:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.58.85.151 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708686337; cv=none; b=XaUyHCHLuLZB1Dwsn/fv5xkNDAXHh1FhrT+dfR/stzyYd3GqLUcO5XberQH+olQaBhYYqnmcarNVhwf/xk0rphWR/uatazMZfi33hY/nvLBon0GEJ3SDL9ubOj/0woevhZYuTv0FJDS8o7nLu2mF9mKwfy4TbUVNsG9+WI0+yjA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708686337; c=relaxed/simple; bh=f8K7B4fWzAJ9S0HMWxpxdex4kiotuVYmwyxdYOKndxs=; h=From:To:CC:Subject:Date:Message-ID:References:In-Reply-To: MIME-Version:Content-Type; b=ey2X3I+SmexozsgPsSC1AHhv2tN5pJ0Yplnf9NBKDgy8akYwPBrvg8Ya1VzrNOCzE7Oq4MgOKXnS9QFL3DErZpOfiaCEHozdBA6+AIqqFaSqHoODk00SpPPSUQOiwztPFG2byfjPg6Mpc0/gJXtxDf1DoWp3XyYZ+MF+Qsix80E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM; spf=pass smtp.mailfrom=aculab.com; arc=none smtp.client-ip=185.58.85.151 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=ACULAB.COM Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=aculab.com Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-130-H-3Osv-SP7aTaorVWrPjmg-1; Fri, 23 Feb 2024 11:05:31 +0000 X-MC-Unique: H-3Osv-SP7aTaorVWrPjmg-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Fri, 23 Feb 2024 11:05:29 +0000 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Fri, 23 Feb 2024 11:05:29 +0000 From: David Laight To: 'Niklas Schnelle' , 'Jason Gunthorpe' CC: Alexander Gordeev , Andrew Morton , Christian Borntraeger , Borislav Petkov , Dave Hansen , "David S. Miller" , "Eric Dumazet" , Gerald Schaefer , Vasily Gorbik , "Heiko Carstens" , "H. Peter Anvin" , Justin Stitt , Jakub Kicinski , Leon Romanovsky , "linux-rdma@vger.kernel.org" , "linux-s390@vger.kernel.org" , "llvm@lists.linux.dev" , Ingo Molnar , Bill Wendling , Nathan Chancellor , Nick Desaulniers , "netdev@vger.kernel.org" , Paolo Abeni , Salil Mehta , Jijie Shao , Sven Schnelle , Thomas Gleixner , "x86@kernel.org" , Yisen Zhuang , Arnd Bergmann , Catalin Marinas , Leon Romanovsky , "linux-arch@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , Mark Rutland , Michael Guralnik , "patches@lists.linux.dev" , Will Deacon Subject: RE: [PATCH 4/6] arm64/io: Provide a WC friendly __iowriteXX_copy() Thread-Topic: [PATCH 4/6] arm64/io: Provide a WC friendly __iowriteXX_copy() Thread-Index: AQHaZGPOOI9/P4jwQk+N+/Phnt6M8bEW6XcggAAM2oCAAKwjYIAAJAwAgAABBTA= Date: Fri, 23 Feb 2024 11:05:29 +0000 Message-ID: <3227d5224a9745e388738d016fdae87a@AcuMS.aculab.com> References: <0-v1-38290193eace+5-mlx5_arm_wc_jgg@nvidia.com> <4-v1-38290193eace+5-mlx5_arm_wc_jgg@nvidia.com> <6d335e8701334a15b220b75d49b98d77@AcuMS.aculab.com> <20240222223617.GC13330@nvidia.com> <61931c626d9bc54369d73fda8f8ee59bbb5e95bc.camel@linux.ibm.com> In-Reply-To: <61931c626d9bc54369d73fda8f8ee59bbb5e95bc.camel@linux.ibm.com> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 Li4uDQo+ID4gPiA+ID4gKwkJaWYgKChfY291bnQgJSA4KSA+PSA0KSB7DQo+ID4gPiA+DQo+ID4g PiA+IElmIChfY291bnQgJiA0KSB7DQo+ID4gPg0KPiA+ID4gVGhhdCB3b3VsZCBiZSBvYmZ1c2Nh dGluZywgSU1ITy4gVGhlIGNvbXBpbGVyIGRvZXNuJ3QgbmVlZCBzdWNoIHRoaW5ncw0KPiA+ID4g dG8gZ2VuZXJhdGUgb3B0aW1hbCBjb2RlLg0KPiA+DQo+ID4gVHJ5IGl0OiBodHRwczovL2dvZGJv bHQub3JnL3ovRXZ2R3JUeHYzDQo+ID4gQW5kIGl0IGlzbid0IHRoYXQgb2JmdXNjYXRlZCAtIG5v IG1vcmUgc28gdGhhbiB5b3VyIHZlcnNpb24uDQo+IA0KPiBUaGUgZ29kYm9sdCBsaW5rIGRvZXMg Im4gJSA4ID4gNCIgaW5zdGVhZCBvZiAiLi4uID49IDQiIGFzIGluIEphc29uJ3MNCj4gb3JpZ2lu YWwgY29kZS4gV2l0aCAiPj0iIHRoZSBjb21waWxlZCBjb2RlIG1hdGNoZXMgdGhhdCBmb3IgIm4g JiA0Ii4NCg0KQnVnZ2VyIDotKQ0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExh a2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQs IFVLDQpSZWdpc3RyYXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K