diff options
| author | Dietmar Eggemann <[email protected]> | 2017-09-26 17:41:10 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2017-10-03 02:37:53 +0200 |
| commit | 0e27c567d1673137b06aa96bb7aef635fb657dee (patch) | |
| tree | bcbb7041ef1af0a73336595a4e9d72ec5fedb813 /include/linux/fpga/fpga-mgr.h | |
| parent | 400ec74d3b3784a48b09db9518aa2c4b6d4e497f (diff) | |
drivers base/arch_topology: provide frequency-invariant accounting support
Implements the arch-specific (arm and arm64) frequency-invariance setter
function arch_set_freq_scale() which provides the following frequency
scaling factor:
current_freq(cpu) << SCHED_CAPACITY_SHIFT / max_supported_freq(cpu)
One possible consumer of the frequency-invariance getter function
topology_get_freq_scale() is the Per-Entity Load Tracking (PELT)
mechanism of the task scheduler.
Allow inlining of topology_get_freq_scale() into the task scheduler
fast path (e.g. __update_load_avg_se()) by coding it as a static inline
function in the arch topology header file.
Signed-off-by: Dietmar Eggemann <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'include/linux/fpga/fpga-mgr.h')
0 files changed, 0 insertions, 0 deletions