From d48aaa47734c3a983e4d52ea053cfdf65424827f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ma=C3=ADra=20Canal?= Date: Tue, 25 Jul 2023 07:38:48 -0300 Subject: [PATCH] drm-uapi: extend interface for timestamp query CPU job MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Extend the UAPI to support the timestamp query user extension for the CPU job. This user extension will allow the creation of a CPU job that calculates the query timestamp by updating a timestamp BO with its value and signaling the availability syncobj. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Part-of: --- include/drm-uapi/v3d_drm.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/include/drm-uapi/v3d_drm.h b/include/drm-uapi/v3d_drm.h index 0c0f4778252..239801b5e11 100644 --- a/include/drm-uapi/v3d_drm.h +++ b/include/drm-uapi/v3d_drm.h @@ -73,6 +73,7 @@ struct drm_v3d_extension { __u32 id; #define DRM_V3D_EXT_ID_MULTI_SYNC 0x01 #define DRM_V3D_EXT_ID_CPU_INDIRECT_CSD 0x02 +#define DRM_V3D_EXT_ID_CPU_TIMESTAMP_QUERY 0x03 __u32 flags; /* mbz */ }; @@ -400,11 +401,40 @@ struct drm_v3d_indirect_csd { __u32 wg_uniform_offsets[3]; }; +/** + * struct drm_v3d_timestamp_query - ioctl extension for the CPU job to calculate + * a timestamp query + * + * When an extension DRM_V3D_EXT_ID_TIMESTAMP_QUERY is defined, it points to + * this extension to define a timestamp query submission. This CPU job will + * calculate the timestamp query and update the query value within the + * timestamp BO. Moreover, it will signal the timestamp syncobj to indicate + * query availability. + */ +struct drm_v3d_timestamp_query { + struct drm_v3d_extension base; + + /* Array of queries' offsets within the timestamp BO for their value */ + __u64 offsets; + + /* Array of timestamp's syncobjs to indicate its availability */ + __u64 syncs; + + /* Number of queries */ + __u32 count; + + /* mbz */ + __u32 pad; +}; + struct drm_v3d_submit_cpu { /* Pointer to a u32 array of the BOs that are referenced by the job. * * For DRM_V3D_EXT_ID_CPU_INDIRECT_CSD, it must contain only one BO, * that contains the workgroup counts. + * + * For DRM_V3D_EXT_ID_TIMESTAMP_QUERY, it must contain only one BO, + * that will contain the timestamp. */ __u64 bo_handles;