diff options
Diffstat (limited to 'arch/arm/mach-tegra/cpu-tegra.c')
| -rw-r--r-- | arch/arm/mach-tegra/cpu-tegra.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c index 2f3fcc8de945..3711b9f2dc97 100644 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ b/arch/arm/mach-tegra/cpu-tegra.c @@ -180,6 +180,40 @@ int tegra_edp_update_thermal_zone(int temperature) } EXPORT_SYMBOL_GPL(tegra_edp_update_thermal_zone); +bool tegra_cpu_edp_favor_up(unsigned int n, int mp_overhead) +{ + unsigned int current_limit, next_limit; + + if (n == 0) + return true; + + if (n >= ARRAY_SIZE(cpu_edp_limits->freq_limits)) + return false; + + current_limit = cpu_edp_limits[edp_thermal_index].freq_limits[n-1]; + next_limit = cpu_edp_limits[edp_thermal_index].freq_limits[n]; + + return ((next_limit * (n + 1)) > + (current_limit * n * (100 + mp_overhead) / 100)); +} + +bool tegra_cpu_edp_favor_down(unsigned int n, int mp_overhead) +{ + unsigned int current_limit, next_limit; + + if (n <= 1) + return false; + + if (n > ARRAY_SIZE(cpu_edp_limits->freq_limits)) + return true; + + current_limit = cpu_edp_limits[edp_thermal_index].freq_limits[n-1]; + next_limit = cpu_edp_limits[edp_thermal_index].freq_limits[n-2]; + + return ((next_limit * (n - 1) * (100 + mp_overhead) / 100)) > + (current_limit * n); +} + static int tegra_cpu_edp_notify( struct notifier_block *nb, unsigned long event, void *hcpu) { |