kernel/cpu/intel_epb.c

1 // SPDX-License-Identifier: GPL-2.0
26  * preference with respect to the power-performance tradeoffs present in the
32  * system-wide transitions from sleep states back into the working state
35  * system-wide transitions to sleep states and restore them on the way back to
37  * when they are taken offline during transitions into system sleep states and
41  * a system-wide PM transition is started are not taken offline again, but their
50  * the system battery to drain too fast, for example, so it is better to adjust
51  * it on CPU bring-up and if the initial EPB value for a given CPU is 0, the
107 	"balance-performance",
109 	"balance-power",
124 	unsigned int cpu = dev->id;  in energy_perf_bias_show()
139 	unsigned int cpu = dev->id;  in energy_perf_bias_store()
148 		return -EINVAL;  in energy_perf_bias_store()
180 		sysfs_merge_group(&cpu_dev->kobj, &intel_epb_attr_group);  in intel_epb_online()
190 		sysfs_unmerge_group(&cpu_dev->kobj, &intel_epb_attr_group);  in intel_epb_offline()
201 		return -ENODEV;  in intel_epb_init()