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drm/v3d: Add DRM_IOCTL_V3D_PERFMON_SET_GLOBAL

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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 <cgmeiner@igalia.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241202140615.74802-1-christian.gmeiner@gmail.com
This commit is contained in:
Christian Gmeiner
2024-12-02 15:06:13 +01:00
committed by Maíra Canal
parent f3c03be182
commit c6eabbab35
6 changed files with 85 additions and 3 deletions
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10
drivers/gpu/drm/v3d/v3d_submit.c
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@@ -981,6 +981,11 @@ v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
goto fail;
if (args->perfmon_id) {
if (v3d->global_perfmon) {
ret = -EAGAIN;
goto fail_perfmon;
}
render->base.perfmon = v3d_perfmon_find(v3d_priv,
args->perfmon_id);
@@ -1196,6 +1201,11 @@ v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
goto fail;
if (args->perfmon_id) {
if (v3d->global_perfmon) {
ret = -EAGAIN;
goto fail_perfmon;
}
job->base.perfmon = v3d_perfmon_find(v3d_priv,
args->perfmon_id);
if (!job->base.perfmon) {