From 17669006adf64d35a74cb21e3c8dfb6fb8be689f Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 22 Nov 2016 12:24:00 -0800 Subject: 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 Signed-off-by: Rafael J. Wysocki Signed-off-by: Tim Chen 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 Cc: bp@suse.de Link: http://lkml.kernel.org/r/0998b98943bcdec7d1ddd4ff27358da555ea8e92.1479844244.git.tim.c.chen@linux.intel.com Signed-off-by: Thomas Gleixner --- drivers/cpufreq/Kconfig.x86 | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/cpufreq/Kconfig.x86') 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 -- cgit v1.2.3