Right now CONFIG_SCHED_MC_PRIO has X86_INTEL_PSTATE as a dependency,
which is not enabled by default and which hides the CONFIG_SCHED_MC_PRIO
hardware-enabling feature.
Select X86_INTEL_PSTATE instead, plus its dependency (CPU_FREQ), if the
user enables CONFIG_SCHED_MC_PRIO=y.
(Also align the CONFIG_SCHED_MC_PRIO Kconfig help text in standard style.)
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: bp@suse.de
Cc: jolsa@redhat.com
Cc: linux-acpi@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: rjw@rjwysocki.net
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
config SCHED_MC_PRIO
bool "CPU core priorities scheduler support"
config SCHED_MC_PRIO
bool "CPU core priorities scheduler support"
- depends on SCHED_MC && CPU_SUP_INTEL && X86_INTEL_PSTATE
+ depends on SCHED_MC && CPU_SUP_INTEL
+ select X86_INTEL_PSTATE
+ select CPU_FREQ
- Intel Turbo Boost Max Technology 3.0 enabled CPUs have a
- core ordering determined at manufacturing time, which allows
- certain cores to reach higher turbo frequencies (when running
- single threaded workloads) than others.
+ Intel Turbo Boost Max Technology 3.0 enabled CPUs have a
+ core ordering determined at manufacturing time, which allows
+ certain cores to reach higher turbo frequencies (when running
+ single threaded workloads) than others.
- Enabling this kernel feature teaches the scheduler about
- the TBM3 (aka ITMT) priority order of the CPU cores and adjusts the
- scheduler's CPU selection logic accordingly, so that higher
- overall system performance can be achieved.
+ Enabling this kernel feature teaches the scheduler about
+ the TBM3 (aka ITMT) priority order of the CPU cores and adjusts the
+ scheduler's CPU selection logic accordingly, so that higher
+ overall system performance can be achieved.
- This feature will have no effect on CPUs without this feature.
+ This feature will have no effect on CPUs without this feature.
source "kernel/Kconfig.preempt"
source "kernel/Kconfig.preempt"