search for: nouveau_dvfs_dev_status

...vfs = container_of(alarm, struct nouveau_dvfs, > + alarm); > + struct nouveau_dvfs_data *data = dvfs->data; > + struct nouveau_object *object = nv_object(dvfs); > + struct nouveau_dvfs_impl *impl = (void *)object->oclass; > + struct nouveau_dvfs_dev_status status; > + u32 utilization = 0; > + int state, ret; > + > + ret = impl->get_dev_status(dvfs, &status); > + if (ret) { > + nv_warn(dvfs, "failed to get device status\n"); > + goto resched; > + } >...

..._dvfs, >>> + alarm); >>> + struct nouveau_dvfs_data *data = dvfs->data; >>> + struct nouveau_object *object = nv_object(dvfs); >>> + struct nouveau_dvfs_impl *impl = (void *)object->oclass; >>> + struct nouveau_dvfs_dev_status status; >>> + u32 utilization = 0; >>> + int state, ret; >>> + >>> + ret = impl->get_dev_status(dvfs, &status); >>> + if (ret) { >>> + nv_warn(dvfs, "failed to get device status\n"); >&gt...

Hi, This is a try to have some simple DVFS (Dynamic Voltage and Frequency Scaling) support for GK20A. Instead of relying on other existing frequency scaling framework, we create a simple subdev in Nouveau for the same purpose. That's because we don't want to make the DVFS implementation for GK20A far more than enough in the beginning and hinder the implementation for dGPU in the future.

...au_dvfs_work(struct nouveau_alarm *alarm) +{ + struct nouveau_dvfs *dvfs = container_of(alarm, struct nouveau_dvfs, + alarm); + struct nouveau_dvfs_data *data = dvfs->data; + struct nouveau_object *object = nv_object(dvfs); + struct nouveau_dvfs_impl *impl = (void *)object->oclass; + struct nouveau_dvfs_dev_status status; + u32 utilization = 0; + int state, ret; + + ret = impl->get_dev_status(dvfs, &status); + if (ret) { + nv_warn(dvfs, "failed to get device status\n"); + goto resched; + } + + if (status.total) + utilization = div_u64((u64)status.busy * 100, status.total); + + data->av...

...larm, struct nouveau_dvfs, >> + alarm); >> + struct nouveau_dvfs_data *data = dvfs->data; >> + struct nouveau_object *object = nv_object(dvfs); >> + struct nouveau_dvfs_impl *impl = (void *)object->oclass; >> + struct nouveau_dvfs_dev_status status; >> + u32 utilization = 0; >> + int state, ret; >> + >> + ret = impl->get_dev_status(dvfs, &status); >> + if (ret) { >> + nv_warn(dvfs, "failed to get device status\n"); >> + goto r...

...gt; + alarm); >>>> + struct nouveau_dvfs_data *data = dvfs->data; >>>> + struct nouveau_object *object = nv_object(dvfs); >>>> + struct nouveau_dvfs_impl *impl = (void *)object->oclass; >>>> + struct nouveau_dvfs_dev_status status; >>>> + u32 utilization = 0; >>>> + int state, ret; >>>> + >>>> + ret = impl->get_dev_status(dvfs, &status); >>>> + if (ret) { >>>> + nv_warn(dvfs, "failed to get device...