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X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?2wKtCKDtVexDsiIbKn+FuNmPsOgS/VWMc7nExyLAuNnJpD3SY7ed/9JncehJ?= =?us-ascii?Q?6IdZKDAdUrpX5RYeoDxcH44yYhMIdXsiZsfmxyhgZ11iAPX7+xhOsID0fRHW?= =?us-ascii?Q?hJyqKRHEvmGrHuacbZSDD6kPJV8vSDstb5R/E+TpelwgR5KfiDJflDiln8aC?= =?us-ascii?Q?vqFtEMxKjsQNX+bd6DaeMySzF8SMQQ/mcHJCeKcgDxx0aUH/5GNUWA+cOzw8?= =?us-ascii?Q?hBD5uZ3sWgPI1+xfXp5/US5etcK8wmltdyCo3lO/VyhK87kDdjhQbsLXHSzW?= =?us-ascii?Q?Q45utifk9uwOZijqvhPX7WIUqjERhzRif9sUKveJCdYi8SHHz+hFtjfVSyn8?= =?us-ascii?Q?FZATHaOzMrOggUqP2cu0QIxQD3WHlDu97C3+G1cR6wKHrjaxNXebycCF+BM9?= =?us-ascii?Q?WLv8WjqU5R6C6efWVntpdZ4xg9VwVMdXmR3XA8Rcm7bF8Hwij1Be2k8rrN7W?= =?us-ascii?Q?l58ZUjsZZLcBIuc+JO3TxEWvozHQFRn7BuEhLHjyViAqcqcdfIaq3VcVifS3?= =?us-ascii?Q?udlMf3ddm/jedtiQE8GlqPzL9d5A1rpphCCe/0KqaJF6u8RUGuwbBwT7B7Q9?= =?us-ascii?Q?bG6LjM6tPZCIyc4ySjyrRLvtFN1fgB5bln+0xo2eXjKheNlRPgvijXYO2QIm?= =?us-ascii?Q?EqALGPzaGXJ1HwkuDVobUDAOiVhP+HfeNX7C2TSPPNYasyke4PeSH4YPziRr?= =?us-ascii?Q?8qud9WGAH3znX9fna8cgh7kv0oS88jTLVhDxMhGN2bRTZbqkM8LoRM2vgXNd?= =?us-ascii?Q?XSaNPsg9fgMN7szZKLvCWS7+EMzAofbz6IRxgnAz+btmRldbEM9AnkCVbrWa?= =?us-ascii?Q?96pb+BrqDkL4uArbTtyunSHZS8tg/XAaasIi/W0wzpfuHVlO1+7SvEr2e8c3?= =?us-ascii?Q?ZmgNqslEmEYHVR6zxDJU1mgef2fk09dxj3iKKkLVWlq7ZGFYZ8tK9z6Xcexr?= =?us-ascii?Q?1I8v9VPBEGBtKBbPDsdOp/z7L6Zd3G0mKbJqRXtB9Qxc/URS3l3p3w3MlPY2?= =?us-ascii?Q?bdLWA8XfrEIqe3OZk2giSz4QReRDYCr+wPU8d8fZoDFrJ2xSg+0G/AqWxRpj?= =?us-ascii?Q?krPIlJSWhsnjCcd3mXcDOnvcD7B5jg4OmGFjemxk7gV9I5DYQ/yZivTlTb+M?= =?us-ascii?Q?JP+yIGEWc1KM5R3dBN+Qz6o4cRJKfWoai9oFov5JkMzWlpuaxjkH6Bmkas6O?= =?us-ascii?Q?uJdoVV9oAVDvsl/4Gg2X7Xk3f8gysiLhHO0+xzyIbMdfGPRow8Y/J+bfGzAN?= =?us-ascii?Q?+/3f4+y8eKBqx8/YiAOhZQD9ncEf5gab0SVypE8wdn2fQYebptIu3li5xaXF?= =?us-ascii?Q?lVNQI6ImNixFGnwoBYhc0P4QPCPBSYtKqiyms6kaamKIxZUcuAwYxe+ap1bP?= =?us-ascii?Q?+5tF5C3lZsCcWnQKkHUIGhdW2V8qFh6zJ5Rg7gy9WrQLAFAW6hc17QrVXe1Z?= =?us-ascii?Q?jQYEyBNF6aJiyaPrhy3TesM1ApUIpwKfaf6htWdFE4hAcItYfuKM5Q=3D=3D?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(7416014)(376014)(82310400026)(36860700013)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Dec 2024 10:53:44.9127 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 4d46a6a5-b8b5-453d-7fe6-08dd16ad6bca 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: CH2PEPF0000013C.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB7572 X-ZohoMail-DKIM: pass (identity @amd.com) X-ZM-MESSAGEID: 1733568850608116600 Content-Type: text/plain; charset="utf-8" As vram objects may be imported by other gpu drivers, peer2peer flag should be checked in dma_buf_ops->attach(). This reimplement virtio gpu dma_buf_ops->attach by adding a device_attach() function for virtio gpu. This function will get pci_p2pdma_distance and check attach->peer2peer before calling drm_gem_map_attach(). Signed-off-by: Julia Zhang Acked-by: Christian K=C3=B6nig --- drivers/gpu/drm/virtio/virtgpu_prime.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virti= o/virtgpu_prime.c index 4960620eba02..4f6bce79e10e 100644 --- a/drivers/gpu/drm/virtio/virtgpu_prime.c +++ b/drivers/gpu/drm/virtio/virtgpu_prime.c @@ -116,6 +116,18 @@ static int virtgpu_get_p2pdma_distance(struct dma_buf = *dma_buf, return 0; } =20 +static int virtgpu_gem_device_attach(struct dma_buf *dma_buf, + struct dma_buf_attachment *attach) +{ + int ret =3D virtgpu_get_p2pdma_distance(dma_buf, attach); + if (ret) + return ret; + if (!attach->peer2peer) + return -EBUSY; + + return drm_gem_map_attach(dma_buf, attach); +} + static const struct virtio_dma_buf_ops virtgpu_dmabuf_ops =3D { .ops =3D { .cache_sgt_mapping =3D true, @@ -128,7 +140,7 @@ static const struct virtio_dma_buf_ops virtgpu_dmabuf_o= ps =3D { .vmap =3D drm_gem_dmabuf_vmap, .vunmap =3D drm_gem_dmabuf_vunmap, }, - .device_attach =3D drm_gem_map_attach, + .device_attach =3D virtgpu_gem_device_attach, .get_uuid =3D virtgpu_virtio_get_uuid, }; =20 --=20 2.34.1