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| author |   Sudeep Holla <Sudeep.Holla@arm.com> | 2016-07-19 18:52:53 +0100 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-07-21 23:24:35 +0200 |
| commit | 35ae713355868aa493edbfbabf615473473215cc (patch) | |
| tree | 3ee0ef3e3d20c76cfb774d9e39d11b55aca1e4cb /include/acpi/processor.h | |
| parent | Linux 4.7-rc7 (diff) | |
| download | wireguard-linux-35ae713355868aa493edbfbabf615473473215cc.tar.xz wireguard-linux-35ae713355868aa493edbfbabf615473473215cc.zip | |
ACPI / processor_idle: introduce ACPI_PROCESSOR_CSTATE
ACPI 6.0 adds a new method to specify the CPU idle states(C-states)
called Low Power Idle(LPI) states. Since new architectures like ARM64
use only LPIs, introduce ACPI_PROCESSOR_CSTATE to encapsulate all the
code supporting the old style C-states(_CST).
This patch will help to extend the processor_idle module to support
LPI.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi/processor.h')
| -rw-r--r-- | include/acpi/processor.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/acpi/processor.h b/include/acpi/processor.h index 6f1805dd5d3c..48779d678122 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -242,7 +242,7 @@ extern int acpi_processor_get_performance_info(struct acpi_processor *pr); DECLARE_PER_CPU(struct acpi_processor *, processors); extern struct acpi_processor_errata errata; -#ifdef ARCH_HAS_POWER_INIT +#if defined(ARCH_HAS_POWER_INIT) && defined(CONFIG_ACPI_PROCESSOR_CSTATE) void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags, unsigned int cpu); int acpi_processor_ffh_cstate_probe(unsigned int cpu, |