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Fri, 25 Sep 2020 07:27:48 +0000 From: Sherry Sun To: sudeep.dutt@intel.com, ashutosh.dixit@intel.com, arnd@arndb.de, gregkh@linuxfoundation.org, wang.yi59@zte.com.cn, huang.zijiang@zte.com.cn, rikard.falkeborn@gmail.com, lee.jones@linaro.org, mst@redhat.com Cc: linux-kernel@vger.kernel.org, linux-imx@nxp.com Subject: [PATCH 4/5] misc: vop: set VIRTIO_F_ACCESS_PLATFORM for nocoherent platform Date: Fri, 25 Sep 2020 15:26:29 +0800 Message-Id: <20200925072630.8157-5-sherry.sun@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200925072630.8157-1-sherry.sun@nxp.com> References: <20200925072630.8157-1-sherry.sun@nxp.com> Content-Type: text/plain X-ClientProxiedBy: AM0PR10CA0033.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:20b:150::13) To VI1PR04MB4960.eurprd04.prod.outlook.com (2603:10a6:803:57::21) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from nxp.ap.freescale.net (119.31.174.71) by AM0PR10CA0033.EURPRD10.PROD.OUTLOOK.COM (2603:10a6:20b:150::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3412.23 via Frontend Transport; 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Signed-off-by: Sherry Sun Signed-off-by: Joakim Zhang --- drivers/misc/mic/vop/vop_main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/misc/mic/vop/vop_main.c b/drivers/misc/mic/vop/vop_main.c index d3645122c983..d609f0dc6124 100644 --- a/drivers/misc/mic/vop/vop_main.c +++ b/drivers/misc/mic/vop/vop_main.c @@ -125,6 +125,9 @@ static void vop_transport_features(struct virtio_device *vdev) * creates virtio rings on preallocated memory. */ __virtio_clear_bit(vdev, VIRTIO_F_RING_PACKED); + + if (!dev_is_dma_coherent(vdev->dev.parent)) + __virtio_set_bit(vdev, VIRTIO_F_ACCESS_PLATFORM); } static int vop_finalize_features(struct virtio_device *vdev) -- 2.17.1