diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-11-30 10:33:54 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-11-30 10:36:10 +0300 |
| commit | 0a21fc1214a25427e13538665ff2afbe707a0b9f (patch) | |
| tree | 68ab05365b42ee9ef6556d92e6b5efbfcc3ecd55 /arch/x86/Kconfig | |
| parent | de966cf4a4fa8d4e0357b08204bc791f34deb3fb (diff) | |
| download | linux-0a21fc1214a25427e13538665ff2afbe707a0b9f.tar.xz | |
sched/x86: Make CONFIG_SCHED_MC_PRIO=y easier to enable
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>
Diffstat (limited to 'arch/x86/Kconfig')
| -rw-r--r-- | arch/x86/Kconfig | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 715c1f3664c4..b50e5eeefd21 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -941,22 +941,24 @@ config SCHED_MC 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 default y ---help--- - 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. - If unsure say Y here. + If unsure say Y here. source "kernel/Kconfig.preempt" |