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| author | Srikar Srimath Tirumala <srikars@nvidia.com> | 2023-11-23 15:14:33 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-12-06 22:52:47 +0300 |
| commit | 310293a2b94197f3d75e65ab22672287a7938a00 (patch) | |
| tree | 40ee7a6d74a384c80ca915a71cb8e1f280070f77 /drivers/acpi/internal.h | |
| parent | 4c2ba6a0ed1944c17b957157bd1e686be4ea968a (diff) | |
| download | linux-310293a2b94197f3d75e65ab22672287a7938a00.tar.xz | |
ACPI: processor: reduce CPUFREQ thermal reduction pctg for Tegra241
Current implementation of processor_thermal performs software throttling
in fixed steps of "20%" which can be too coarse for some platforms.
We observed some performance gain after reducing the throttle percentage.
Change the CPUFREQ thermal reduction percentage and maximum thermal steps
to be configurable. Also, update the default values of both for Nvidia
Tegra241 (Grace) SoC. The thermal reduction percentage is reduced to "5%"
and accordingly the maximum number of thermal steps are increased as they
are derived from the reduction percentage.
Signed-off-by: Srikar Srimath Tirumala <srikars@nvidia.com>
Co-developed-by: Sumit Gupta <sumitg@nvidia.com>
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/internal.h')
| -rw-r--r-- | drivers/acpi/internal.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index db666f13c2ef..14b2df0b54b8 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -85,6 +85,15 @@ bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); acpi_status acpi_sysfs_table_handler(u32 event, void *table, void *context); void acpi_scan_table_notify(void); +#ifdef CONFIG_ARM64 +int acpi_arch_thermal_cpufreq_pctg(void); +#else +static inline int acpi_arch_thermal_cpufreq_pctg(void) +{ + return 0; +} +#endif + /* -------------------------------------------------------------------------- Device Node Initialization / Removal -------------------------------------------------------------------------- */ |