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Thu, 8 Apr 2021 15:58:46 +0000 From: Bharat Kumar Gogada To: "lorenzo.pieralisi@arm.com" , "linux-pci@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: "lorenzo.pieralisi@arm.com" , "bhelgaas@google.com" Subject: RE: [PATCH v3 1/2] PCI: xilinx-nwl: Enable coherent PCIe DMA traffic using CCI Thread-Topic: [PATCH v3 1/2] PCI: xilinx-nwl: Enable coherent PCIe DMA traffic using CCI Thread-Index: AQHXCPdf8/XRKTi3FEaC06+ar6fH8aqpfLQAgAGRbUA= Date: Thu, 8 Apr 2021 15:58:46 +0000 Message-ID: References: <20210222084732.21521-1-bharat.kumar.gogada@xilinx.com> <161781127065.668.2308248891622722223.b4-ty@arm.com> In-Reply-To: <161781127065.668.2308248891622722223.b4-ty@arm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-TNEF-Correlator: authentication-results: arm.com; dkim=none (message not signed) header.d=none;arm.com; dmarc=none action=none header.from=xilinx.com; x-originating-ip: [149.199.50.129] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 9b77b6b7-444d-49ca-04a6-08d8faa7315d x-ms-traffictypediagnostic: BYAPR02MB4071: x-ld-processed: 657af505-d5df-48d0-8300-c31994686c5c,ExtAddr x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:7691; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: BYAPR02MB5559.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9b77b6b7-444d-49ca-04a6-08d8faa7315d X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Apr 2021 15:58:46.5478 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: d/eLUDSeqCWeCeYSkzkOx1lV1ujmAnaxZ8F83nf8ftDu7vFvsD7/Uf+Rtr5ysk5Bzh7WbuPVTVg0oXEK5KpBCg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB4071 Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Thanks Lorenzo. > -----Original Message----- > From: Lorenzo Pieralisi > Sent: Wednesday, April 7, 2021 9:32 PM > To: linux-pci@vger.kernel.org; Bharat Kumar Gogada ; > linux-kernel@vger.kernel.org > Cc: lorenzo.pieralisi@arm.com; bhelgaas@google.com > Subject: Re: [PATCH v3 1/2] PCI: xilinx-nwl: Enable coherent PCIe DMA tra= ffic > using CCI >=20 > On Mon, 22 Feb 2021 14:17:31 +0530, Bharat Kumar Gogada wrote: > > Add support for routing PCIe DMA traffic coherently when Cache > > Coherent Interconnect (CCI) is enabled in the system. > > The "dma-coherent" property is used to determine if CCI is enabled or > > not. > > Refer to https://developer.arm.com/documentation/ddi0470/k/preface > > for the CCI specification. >=20 > Applied to pci/xilinx, thanks! >=20 > [1/2] PCI: xilinx-nwl: Enable coherent PCIe DMA traffic using CCI > https://git.kernel.org/lpieralisi/pci/c/213e122052 > [2/2] PCI: xilinx-nwl: Add optional "dma-coherent" property > https://git.kernel.org/lpieralisi/pci/c/1c4422f226 >=20 > Thanks, > Lorenzo