kernel/linux.git/include/uapi/drm/v3d_drm.h, branch v6.12.80

drm/v3d: Deprecate the use of the Performance Counters enum

2024-05-20T19:38:04+00:00

The Performance Counters enum used to identify the index of each performance counter and provide the total number of performance counters (V3D_PERFCNT_NUM). But, this enum is only valid for V3D 4.2, not for V3D 7.1. As we implemented a new flexible structure to retrieve performance counters information, we can deprecate this enum. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20240512222655.2792754-7-mcanal@igalia.com

drm/v3d: Create new IOCTL to expose performance counters information

2024-05-20T19:38:02+00:00

Userspace usually needs some information about the performance counters available. Although we could replicate this information in the kernel and user-space, let's use the kernel as the "single source of truth" to avoid issues in the future (e.g. list of performance counters is updated in user-space, but not in the kernel, generating invalid requests). Therefore, create a new IOCTL to expose the performance counters information, that is name, category, and description. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20240512222655.2792754-5-mcanal@igalia.com

drm/v3d: Create a new V3D parameter for the maximum number of perfcnt

2024-05-20T19:38:01+00:00

The maximum number of performance counters can change from version to version and it's important for userspace to know this value, as it needs to use the counters for performance queries. Therefore, expose the maximum number of performance counters to userspace as a parameter. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20240512222655.2792754-4-mcanal@igalia.com

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

2023-12-01T12:47:36+00:00

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 Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-19-mcanal@igalia.com

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

2023-12-01T12:47:35+00:00

A CPU job is a type of job that performs operations that requires CPU intervention. A reset performance query job is a job that resets the performance queries by resetting the values of the perfmons. Moreover, we also reset the syncobjs related to the availability of the query. So, create a user extension for the CPU job that enables the creation of a reset performance job. This user extension will allow the creation of a CPU job that resets the perfmons values and resets the availability syncobj. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-18-mcanal@igalia.com

drm/v3d: Create a CPU job extension to copy timestamp query to a buffer

2023-12-01T12:47:31+00:00

A CPU job is a type of job that performs operations that requires CPU intervention. A copy timestamp query job is a job that copy the complete or partial result of a query to a buffer. As V3D doesn't provide any mechanism to obtain a timestamp from the GPU, it is a job that needs CPU intervention. So, create a user extension for the CPU job that enables the creation of a copy timestamp query job. This user extension will allow the creation of a CPU job that copy the results of a timestamp query to a BO with the possibility to indicate the timestamp availability with a availability bit. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-17-mcanal@igalia.com

drm/v3d: Create a CPU job extension for the reset timestamp job

2023-12-01T12:42:47+00:00

A CPU job is a type of job that performs operations that requires CPU intervention. A reset timestamp job is a job that resets the timestamp queries based on the value offset of the first query. As V3D doesn't provide any mechanism to obtain a timestamp from the GPU, it is a job that needs CPU intervention. So, create a user extension for the CPU job that enables the creation of a reset timestamp job. This user extension will allow the creation of a CPU job that resets the timestamp value in the timestamp BO and resets the availability syncobj. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-16-mcanal@igalia.com

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

2023-12-01T12:41:37+00:00

A CPU job is a type of job that performs operations that requires CPU intervention. A timestamp query job is a job that calculates the query timestamp and updates the query availability by signaling a syncobj. As V3D doesn't provide any mechanism to obtain a timestamp from the GPU, it is a job that needs CPU intervention. So, create a user extension for the CPU job that enables the creation of a timestamp query job. This user extension will allow the creation of a CPU job that performs the timestamp query calculation and updates the timestamp BO with the proper value. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-15-mcanal@igalia.com

drm/v3d: Create a CPU job extension for a indirect CSD job

2023-12-01T12:40:15+00:00

A CPU job is a type of job that performs operations that requires CPU intervention. An indirect CSD job is a job that, when executed in the queue, will map the indirect buffer, read the dispatch parameters, and submit a regular dispatch. Therefore, it is a job that needs CPU intervention. So, create a user extension for the CPU job that enables the creation of an indirect CSD. This user extension will allow the creation of a CSD job linked to a CPU job. The CPU job will wait for the indirect CSD job dependencies and, once they are signaled, it will update the CSD job parameters. Co-developed-by: Melissa Wen Signed-off-by: Melissa Wen Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-14-mcanal@igalia.com

drm/v3d: Add a CPU job submission

2023-12-01T12:34:19+00:00

Create a new type of job, a CPU job. A CPU job is a type of job that performs operations that requires CPU intervention. The overall idea is to use user extensions to enable different types of CPU job, allowing the CPU job to perform different operations according to the type of user extension. The user extension ID identify the type of CPU job that must be dealt. Having a CPU job is interesting for synchronization purposes as a CPU job has a queue like any other V3D job and can be synchoronized by the multisync extension. Signed-off-by: Melissa Wen Co-developed-by: Maíra Canal Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20231130164420.932823-9-mcanal@igalia.com