| Message ID | f9947988ad2e8787da4bec32b71a59a65ce45074.1436464513.git.ashwin.chaugule@linaro.org (mailing list archive) |
|---|---|
| State | Changes Requested, archived |
| Headers | show |
On 09/07/15 19:04, Ashwin Chaugule wrote: > For each detected ACPI Processor object (ACPI0007), search its > device handle for CPPC specific tables (i.e. _CPC) and extract > CPU specific performance capabilities. > > Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org> > Reviewed-by: Al Stone <al.stone@linaro.org> > --- > arch/arm64/Kconfig | 1 + > drivers/acpi/Kconfig | 2 +- > drivers/acpi/processor_driver.c | 4 ++++ > include/acpi/processor.h | 9 +++++++++ > 4 files changed, 15 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 7796af4..feff114 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -83,6 +83,7 @@ config ARM64 > select SPARSE_IRQ > select SYSCTL_EXCEPTION_TRACE > select HAVE_CONTEXT_TRACKING > + select ACPI_CPPC_LIB if ACPI This could be separate patch. It's doesn't match with $subject and usually better to keep arm64 specific changes separate. > help > ARM 64-bit (AArch64) Linux support. > > diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig > index 54d73bb..097c02a 100644 > --- a/drivers/acpi/Kconfig > +++ b/drivers/acpi/Kconfig > @@ -198,7 +198,7 @@ config ACPI_CPPC_LIB > config ACPI_PROCESSOR > tristate "Processor" > select CPU_IDLE if ACPI_PROCESSOR_IDLE > - depends on X86 || IA64 > + depends on X86 || IA64 || ARM64 Ditto Regards, Sudeep -- 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/arch/arm64/Kconfig b/arch/arm64/Kconfig index 7796af4..feff114 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -83,6 +83,7 @@ config ARM64 select SPARSE_IRQ select SYSCTL_EXCEPTION_TRACE select HAVE_CONTEXT_TRACKING + select ACPI_CPPC_LIB if ACPI help ARM 64-bit (AArch64) Linux support. diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 54d73bb..097c02a 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -198,7 +198,7 @@ config ACPI_CPPC_LIB config ACPI_PROCESSOR tristate "Processor" select CPU_IDLE if ACPI_PROCESSOR_IDLE - depends on X86 || IA64 + depends on X86 || IA64 || ARM64 default y help This driver adds support for the ACPI Processor package. It is required diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 16d44ad..ac3dd51 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -246,6 +246,10 @@ static int __acpi_processor_start(struct acpi_device *device) if (pr->flags.need_hotplug_init) return 0; + result = acpi_cppc_processor_probe(pr); + if (result) + return -ENODEV; + if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver) acpi_processor_power_init(pr); diff --git a/include/acpi/processor.h b/include/acpi/processor.h index c071a92..6e53b5e 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -328,6 +328,15 @@ phys_cpuid_t acpi_get_phys_id(acpi_handle, int type, u32 acpi_id); int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id); int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id); +#ifdef CONFIG_ACPI_CPPC_LIB +extern int acpi_cppc_processor_probe(struct acpi_processor *pr); +#else +static inline int acpi_cppc_processor_probe(struct acpi_processor *pr) +{ + return 0; +} +#endif /* CONFIG_ACPI_CPPC_LIB */ + /* in processor_pdc.c */ void acpi_processor_set_pdc(acpi_handle handle);