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drm/v3d: Create a CPU job extension for the copy performance query job

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A CPU job is a type of job that performs operations that requires CPU
intervention. A copy performance query job is a job that copy the complete
or partial result of a query to a buffer. In order to copy the result of
a performance query to a buffer, we need to get the values from the
performance monitors.

So, create a user extension for the CPU job that enables the creation
of a copy performance query job. This user extension will allow the creation
of a CPU job that copy the results of a performance query to a BO with the
possibility to indicate the availability with a availability bit.

Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-19-mcanal@igalia.com
This commit is contained in:
Maíra Canal
2023-11-30 13:40:40 -03:00
parent bae7cb5d68
commit 209e8d2695
4 changed files with 198 additions and 0 deletions
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50
include/uapi/drm/v3d_drm.h
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@@ -77,6 +77,7 @@ struct drm_v3d_extension {
#define DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY 0x04
#define DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY 0x05
#define DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY 0x06
#define DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY 0x07
__u32 flags; /* mbz */
};
@@ -519,6 +520,52 @@ struct drm_v3d_reset_performance_query {
__u64 kperfmon_ids;
};
/**
* struct drm_v3d_copy_performance_query - ioctl extension for the CPU job to copy
* performance query results to a buffer
*
* When an extension DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY is defined, it
* points to this extension to define a copy performance query submission. This
* CPU job will copy the performance queries results to a BO with the offset
* and stride defined in the extension.
*/
struct drm_v3d_copy_performance_query {
struct drm_v3d_extension base;
/* Define if should write to buffer using 64 or 32 bits */
__u8 do_64bit;
/* Define if it can write to buffer even if the query is not available */
__u8 do_partial;
/* Define if it should write availability bit to buffer */
__u8 availability_bit;
/* mbz */
__u8 pad;
/* Offset of the buffer in the BO */
__u32 offset;
/* Stride of the buffer in the BO */
__u32 stride;
/* Number of performance monitors */
__u32 nperfmons;
/* Number of performance counters related to this query pool */
__u32 ncounters;
/* Number of queries */
__u32 count;
/* Array of performance queries's syncobjs to indicate its availability */
__u64 syncs;
/* Array of u64 user-pointers that point to an array of kperfmon_ids */
__u64 kperfmon_ids;
};
struct drm_v3d_submit_cpu {
/* Pointer to a u32 array of the BOs that are referenced by the job.
*
@@ -537,6 +584,9 @@ struct drm_v3d_submit_cpu {
*
* For DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY, it must contain no
* BOs.
*
* For DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY, it must contain one
* BO, where the performance queries will be written.
*/
__u64 bo_handles;