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client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BN3PEPF0000B075.mail.protection.outlook.com (10.167.243.120) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8489.16 via Frontend Transport; Fri, 28 Feb 2025 05:37:21 +0000 Received: from jenkins-honglei.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 27 Feb 2025 23:37:17 -0600 From: Honglei Huang To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Simona Vetter , Rob Clark , Huang Rui CC: , , , Demi Marie Obenour , Dmitry Osipenko , Honglei Huang Subject: [PATCH v1 1/7] virtio-gpu api: add blob userptr resource Date: Fri, 28 Feb 2025 13:36:44 +0800 Message-ID: <20250228053650.393646-2-honglei1.huang@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250228053650.393646-1-honglei1.huang@amd.com> References: <20250228053650.393646-1-honglei1.huang@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN3PEPF0000B075:EE_|DS0PR12MB7607:EE_ X-MS-Office365-Filtering-Correlation-Id: 86d67615-22b4-4fde-a209-08dd57b9f931 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|82310400026|1800799024|36860700013|7416014|376014|921020; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Feb 2025 05:37:21.7355 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 86d67615-22b4-4fde-a209-08dd57b9f931 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B075.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB7607 Content-Type: text/plain; charset="utf-8" From: Honglei Huang Add a new resource for blob resource, called userptr, used for let host access guest user space memory, to acquire buffer based userptr feature in virtio GPU. - The capset VIRTIO_GPU_CAPSET_HSAKMT used for context init, in this series patches only HSAKMT context can use the userptr feature. HSAKMT is a GPU compute library in HSA stack, like the role libdrm in mesa stack. - New flag VIRTIO_GPU_BLOB_FLAG_USE_USERPTR used in blob create to indicate the blob create ioctl is used for create a userptr blob resource. Signed-off-by: Honglei Huang --- include/uapi/linux/virtio_gpu.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gp= u.h index bf2c9cabd207..4da36a1e62c4 100644 --- a/include/uapi/linux/virtio_gpu.h +++ b/include/uapi/linux/virtio_gpu.h @@ -65,6 +65,11 @@ */ #define VIRTIO_GPU_F_CONTEXT_INIT 4 =20 +/* + * VIRTGPU_BLOB_FLAG_USE_USERPTR + */ +#define VIRTIO_GPU_F_RESOURCE_USERPTR 5 + enum virtio_gpu_ctrl_type { VIRTIO_GPU_UNDEFINED =3D 0, =20 @@ -312,6 +317,7 @@ struct virtio_gpu_cmd_submit { /* 3 is reserved for gfxstream */ #define VIRTIO_GPU_CAPSET_VENUS 4 #define VIRTIO_GPU_CAPSET_DRM 6 +#define VIRTIO_GPU_CAPSET_HSAKMT 8 =20 /* VIRTIO_GPU_CMD_GET_CAPSET_INFO */ struct virtio_gpu_get_capset_info { @@ -404,6 +410,7 @@ struct virtio_gpu_resource_create_blob { #define VIRTIO_GPU_BLOB_FLAG_USE_MAPPABLE 0x0001 #define VIRTIO_GPU_BLOB_FLAG_USE_SHAREABLE 0x0002 #define VIRTIO_GPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004 +#define VIRTIO_GPU_BLOB_FLAG_USE_USERPTR 0x0008 /* zero is invalid blob mem */ __le32 blob_mem; __le32 blob_flags; --=20 2.34.1