| Message ID | 1459298497-29481-2-git-send-email-srikars@nvidia.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Delegated to: | Eduardo Valentin |
| Headers | show |
Looks good to me. The only platforms I've ever seen with substantial numbers of cooling devices whose states change relatively frequently are NVIDIA's. So I don't think this will be a performance concern. -Matt Longnecker On 03/29/2016 05:41 PM, Srikar Srimath Tirumala wrote: > Send notifications using sysfs_notify to indicate that a cooling > device cur state has changed. This can alert the listeners that > hardware clocks are about to be throttled. > > A listening user space application can use this notification to > perform workload throttling. > > Change-Id: I71cd6d11bff87f181fa3b7db36bf6c953d1d77eb > Signed-off-by: Srikar Srimath Tirumala <srikars@nvidia.com> > --- > drivers/thermal/thermal_core.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c > index d4b5465..b09fff1 100644 > --- a/drivers/thermal/thermal_core.c > +++ b/drivers/thermal/thermal_core.c > @@ -1642,6 +1642,7 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) > cdev->updated = true; > trace_cdev_update(cdev, target); > dev_dbg(&cdev->device, "set to state %lu\n", target); > + sysfs_notify(&cdev->device.kobj, NULL, "cur_state"); > } > EXPORT_SYMBOL(thermal_cdev_update); > -- To unsubscribe from this list: send the line "unsubscribe linux-pm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index d4b5465..b09fff1 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1642,6 +1642,7 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev) cdev->updated = true; trace_cdev_update(cdev, target); dev_dbg(&cdev->device, "set to state %lu\n", target); + sysfs_notify(&cdev->device.kobj, NULL, "cur_state"); } EXPORT_SYMBOL(thermal_cdev_update);
Send notifications using sysfs_notify to indicate that a cooling device cur state has changed. This can alert the listeners that hardware clocks are about to be throttled. A listening user space application can use this notification to perform workload throttling. Change-Id: I71cd6d11bff87f181fa3b7db36bf6c953d1d77eb Signed-off-by: Srikar Srimath Tirumala <srikars@nvidia.com> --- drivers/thermal/thermal_core.c | 1 + 1 file changed, 1 insertion(+)