diff options
Diffstat (limited to 'drivers/gpu/drm/v3d/v3d_perfmon.c')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_perfmon.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_perfmon.c b/drivers/gpu/drm/v3d/v3d_perfmon.c index f268d9466c0f..73e2bb8bdb7f 100644 --- a/drivers/gpu/drm/v3d/v3d_perfmon.c +++ b/drivers/gpu/drm/v3d/v3d_perfmon.c @@ -217,3 +217,36 @@ int v3d_perfmon_get_values_ioctl(struct drm_device *dev, void *data, return ret; } + +int v3d_perfmon_get_counter_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_v3d_perfmon_get_counter *req = data; + struct v3d_dev *v3d = to_v3d_dev(dev); + const struct v3d_perf_counter_desc *counter; + + for (int i = 0; i < ARRAY_SIZE(req->reserved); i++) { + if (req->reserved[i] != 0) + return -EINVAL; + } + + /* Make sure that the counter ID is valid */ + if (req->counter >= v3d->max_counters) + return -EINVAL; + + if (v3d->ver >= 71) { + WARN_ON(v3d->max_counters != ARRAY_SIZE(v3d_v71_performance_counters)); + counter = &v3d_v71_performance_counters[req->counter]; + } else if (v3d->ver >= 42) { + WARN_ON(v3d->max_counters != ARRAY_SIZE(v3d_v42_performance_counters)); + counter = &v3d_v42_performance_counters[req->counter]; + } else { + return -EOPNOTSUPP; + } + + strscpy(req->name, counter->name, sizeof(req->name)); + strscpy(req->category, counter->category, sizeof(req->category)); + strscpy(req->description, counter->description, sizeof(req->description)); + + return 0; +} |