diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-11-22 12:24:00 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-24 20:44:20 +0100 |
| commit | 17669006adf64d35a74cb21e3c8dfb6fb8be689f (patch) | |
| tree | c7dbd479e6558c47c95a128b78864f9e0a9b10b0 /drivers/cpufreq/Kconfig.x86 | |
| parent | 8b533a0eeefc5861cea57163dd3cec2798a77f6c (diff) | |
| download | linux-17669006adf64d35a74cb21e3c8dfb6fb8be689f.tar.gz linux-17669006adf64d35a74cb21e3c8dfb6fb8be689f.tar.bz2 linux-17669006adf64d35a74cb21e3c8dfb6fb8be689f.zip | |
cpufreq/intel_pstate: Use CPPC to get max performance
Use the acpi cppc_lib interface to get CPPC performance limits and update
the per cpu priority for the ITMT scheduler. If the highest performance of
CPUs differs the ITMT feature is enabled.
Co-developed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Cc: linux-pm@vger.kernel.org
Cc: peterz@infradead.org
Cc: jolsa@redhat.com
Cc: rjw@rjwysocki.net
Cc: linux-acpi@vger.kernel.org
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: bp@suse.de
Link: http://lkml.kernel.org/r/0998b98943bcdec7d1ddd4ff27358da555ea8e92.1479844244.git.tim.c.chen@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'drivers/cpufreq/Kconfig.x86')
| -rw-r--r-- | drivers/cpufreq/Kconfig.x86 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86 index adbd1de1cea5..c6d273b43ff9 100644 --- a/drivers/cpufreq/Kconfig.x86 +++ b/drivers/cpufreq/Kconfig.x86 @@ -6,6 +6,7 @@ config X86_INTEL_PSTATE bool "Intel P state control" depends on X86 select ACPI_PROCESSOR if ACPI + select ACPI_CPPC_LIB if X86_64 && ACPI && SCHED_ITMT help This driver provides a P state for Intel core processors. The driver implements an internal governor and will become |