diff options
| -rw-r--r-- | include/uapi/drm/xe_drm.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h index be62b3a06db9..fef5e26aad2a 100644 --- a/include/uapi/drm/xe_drm.h +++ b/include/uapi/drm/xe_drm.h @@ -212,6 +212,9 @@ struct drm_xe_query_gts { /** * struct drm_xe_query_topology_mask - describe the topology mask of a GT * + * This is the hardware topology which reflects the internal physical + * structure of the GPU. + * * If a query is made with a struct drm_xe_device_query where .query * is equal to DRM_XE_DEVICE_QUERY_GT_TOPOLOGY, then the reply uses * struct drm_xe_query_topology_mask in .data. @@ -220,8 +223,29 @@ struct drm_xe_query_topology_mask { /** @gt_id: GT ID the mask is associated with */ __u16 gt_id; + /* + * To query the mask of Dual Sub Slices (DSS) available for geometry + * operations. For example a query response containing the following + * in mask: + * DSS_GEOMETRY ff ff ff ff 00 00 00 00 + * means 32 DSS are available for geometry. + */ #define XE_TOPO_DSS_GEOMETRY (1 << 0) + /* + * To query the mask of Dual Sub Slices (DSS) available for compute + * operations. For example a query response containing the following + * in mask: + * DSS_COMPUTE ff ff ff ff 00 00 00 00 + * means 32 DSS are available for compute. + */ #define XE_TOPO_DSS_COMPUTE (1 << 1) + /* + * To query the mask of Execution Units (EU) available per Dual Sub + * Slices (DSS). For example a query response containing the following + * in mask: + * EU_PER_DSS ff ff 00 00 00 00 00 00 + * means each DSS has 16 EU. + */ #define XE_TOPO_EU_PER_DSS (1 << 2) /** @type: type of mask */ __u16 type; |