summaryrefslogtreecommitdiff
path: root/drivers/cpufreq/Kconfig.x86
diff options
context:
space:
mode:
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-11-22 23:24:00 +0300
committerThomas Gleixner <tglx@linutronix.de>2016-11-24 22:44:20 +0300
commit17669006adf64d35a74cb21e3c8dfb6fb8be689f (patch)
treec7dbd479e6558c47c95a128b78864f9e0a9b10b0 /drivers/cpufreq/Kconfig.x86
parent8b533a0eeefc5861cea57163dd3cec2798a77f6c (diff)
downloadlinux-17669006adf64d35a74cb21e3c8dfb6fb8be689f.tar.xz
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.x861
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