kernel/linux.git/include/uapi/drm/v3d_drm.h, branch v6.19.11

drm/v3d: Add parameter to retrieve the number of GPU resets per-fd

2025-07-17T14:17:32+00:00

The GL extension KHR_robustness uses the number of global and per-context GPU resets to learn about graphics resets that affect a GL context. This commit introduces a new V3D parameter to retrieve the number of GPU resets triggered by jobs submitted through a file descriptor. To retrieve this information, user-space must use DRM_V3D_PARAM_CONTEXT_RESET_COUNTER. Reviewed-by: Iago Toral Quiroga Link: https://lore.kernel.org/r/20250711-v3d-reset-counter-v1-2-1ac73e9fca2d@igalia.com Signed-off-by: Maíra Canal

drm/v3d: Add parameter to retrieve the global number of GPU resets

2025-07-17T14:17:27+00:00

The GL extension KHR_robustness uses the number of global and per-context GPU resets to learn about graphics resets that affect a GL context. This commit introduces a new V3D parameter to retrieve the global number of GPU resets that have happened since the driver was probed. To retrieve this information, user-space must use DRM_V3D_PARAM_GLOBAL_RESET_COUNTER. Reviewed-by: Iago Toral Quiroga Link: https://lore.kernel.org/r/20250711-v3d-reset-counter-v1-1-1ac73e9fca2d@igalia.com Signed-off-by: Maíra Canal

drm/v3d: Add DRM_IOCTL_V3D_PERFMON_SET_GLOBAL

2024-12-04T11:44:27+00:00

Add a new ioctl, DRM_IOCTL_V3D_PERFMON_SET_GLOBAL, to allow configuration of a global performance monitor (perfmon). Use the global perfmon for all jobs to ensure consistent performance tracking across submissions. This feature is needed to implement a Perfetto datasources in user-space. Signed-off-by: Christian Gmeiner Reviewed-by: Maíra Canal Signed-off-by: Maíra Canal Link: https://patchwork.freedesktop.org/patch/msgid/20241202140615.74802-1-christian.gmeiner@gmail.com

drm/v3d: Expose Super Pages capability

2024-09-25T11:40:26+00:00

Add a new V3D parameter to expose the support of Super Pages to userspace. The userspace might want to know this information to apply optimizations that are specific to kernels with Super Pages enabled. Signed-off-by: Maíra Canal Reviewed-by: Iago Toral Quiroga Link: https://patchwork.freedesktop.org/patch/msgid/20240923141348.2422499-12-mcanal@igalia.com

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