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Tue, 30 Jul 2019 18:04:56 +0000 Received: from VI1PR05MB4141.eurprd05.prod.outlook.com ([fe80::5c6f:6120:45cd:2880]) by VI1PR05MB4141.eurprd05.prod.outlook.com ([fe80::5c6f:6120:45cd:2880%4]) with mapi id 15.20.2115.005; Tue, 30 Jul 2019 18:04:56 +0000 From: Jason Gunthorpe To: Christoph Hellwig CC: =?iso-8859-1?Q?J=E9r=F4me_Glisse?= , Ben Skeggs , Felix Kuehling , Ralph Campbell , "linux-mm@kvack.org" , "nouveau@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "amd-gfx@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH 13/13] mm: allow HMM_MIRROR on all architectures with MMU Thread-Topic: [PATCH 13/13] mm: allow HMM_MIRROR on all architectures with MMU Thread-Index: AQHVRpsJa23GemswhU+gJVFr5hDTJqbjdQwAgAAATwA= Date: Tue, 30 Jul 2019 18:04:56 +0000 Message-ID: <20190730180452.GS24038@mellanox.com> References: <20190730055203.28467-1-hch@lst.de> <20190730055203.28467-14-hch@lst.de> <20190730180346.GR24038@mellanox.com> In-Reply-To: <20190730180346.GR24038@mellanox.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: YTBPR01CA0033.CANPRD01.PROD.OUTLOOK.COM (2603:10b6:b01:14::46) To VI1PR05MB4141.eurprd05.prod.outlook.com (2603:10a6:803:4d::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=jgg@mellanox.com; x-ms-exchange-messagesentrepresentingtype: 1 x-originating-ip: [156.34.55.100] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 03d84397-3d3b-4c11-fad7-08d715186dca x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600148)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020);SRVR:VI1PR05MB5728; x-ms-traffictypediagnostic: VI1PR05MB5728: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8273; x-forefront-prvs: 0114FF88F6 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(4636009)(136003)(366004)(39860400002)(376002)(346002)(396003)(199004)(189003)(6116002)(3846002)(68736007)(2616005)(71200400001)(71190400001)(2906002)(11346002)(14454004)(386003)(102836004)(26005)(446003)(486006)(256004)(305945005)(6506007)(5660300002)(476003)(52116002)(186003)(76176011)(7736002)(66066001)(86362001)(81156014)(6916009)(6486002)(6512007)(6436002)(25786009)(4326008)(36756003)(7416002)(4744005)(99286004)(66946007)(478600001)(1076003)(8676002)(81166006)(8936002)(316002)(54906003)(66476007)(33656002)(66446008)(66556008)(64756008)(6246003)(53936002)(229853002);DIR:OUT;SFP:1101;SCL:1;SRVR:VI1PR05MB5728;H:VI1PR05MB4141.eurprd05.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; received-spf: None (protection.outlook.com: mellanox.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: hhc/Ht635k2j1rY/C8iYECS199dZkk48XaLnfkr4e3iLTnuw3zMrgJIoGyUsrbAViDerk4hGbpOnk/fGxl70D8Q35oX+VOQGAH2LkMXkwXQEVIH+JmWpSZP3bHZdPrXyPPrs/suZKIrRf6lB/AYSwCIrkCZWfQcimH7EFFM38Nui+aDVGPEXDnsoetdMF3i5OpYCjqLY4N7tHebqpt1cRIFWv74LM7t1eWyapOkHKXt0FRAdsRrUrgv7NeGE+oipfbN5VmlC/hXJW9eovyT6+uPld/0x2v8sAmA5vH7Q2nAV6pcVnBn/mMpYNFjn93C7lWcQfngFe3X4BG5ltqVKQuFn21bhqh2C5I2EuG8SaHbkUTgGR0LC2Jg97yWjCWQEOMyOYhQkwWU5NuuRMqrpGDJNkvtkQOmfokyLkGyV1nA= Content-Type: text/plain; charset="iso-8859-1" Content-ID: <19A5F90EDC581B4E9B7EA8DB5AE872E2@eurprd05.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-Network-Message-Id: 03d84397-3d3b-4c11-fad7-08d715186dca X-MS-Exchange-CrossTenant-originalarrivaltime: 30 Jul 2019 18:04:56.3410 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: jgg@mellanox.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR05MB5728 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Jul 30, 2019 at 03:03:46PM -0300, Jason Gunthorpe wrote: > On Tue, Jul 30, 2019 at 08:52:03AM +0300, Christoph Hellwig wrote: > > There isn't really any architecture specific code in this page table > > walk implementation, so drop the dependencies. > >=20 > > Signed-off-by: Christoph Hellwig > > mm/Kconfig | 3 +-- > > 1 file changed, 1 insertion(+), 2 deletions(-) >=20 > Happy to see it, lets try to get this patch + the required parts of > this series into linux-next to be really sure >=20 > Reviewed-by: Jason Gunthorpe Oh, can we make this into a non-user selectable option now?=20 ie have the drivers that use the API select it? Thanks, Jason