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drm-uapi: extend interface for timestamp query CPU job

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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 <mcanal@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26448>
This commit is contained in:
Maíra Canal
2023-07-25 07:38:48 -03:00
committed by Marge Bot
parent 2e32644e35
commit d48aaa4773
1 changed files with 30 additions and 0 deletions
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30
include/drm-uapi/v3d_drm.h
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@@ -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;