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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-09-04 18:31:25 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-09-04 18:31:25 +0200
commitf7ce2c3afc938b7d743ee8e5563560c04e17d7be (patch)
tree2aeff14ebe5d45576d937dfc7e56dafaa4db1f32 /Documentation
parent763700f5e0fc8e66f4279848b150c5d12eb4d421 (diff)
parenteacc9c5a927e474c173a5d53dd7fb8e306511768 (diff)
downloadlinux-f7ce2c3afc938b7d743ee8e5563560c04e17d7be.tar.bz2
Merge branch 'pm-cpufreq'
* pm-cpufreq: cpufreq: intel_pstate: Fix intel_pstate_get_hwp_max() for turbo disabled cpufreq: intel_pstate: Free memory only when turning off cpufreq: intel_pstate: Add ->offline and ->online callbacks cpufreq: intel_pstate: Tweak the EPP sysfs interface cpufreq: intel_pstate: Update cached EPP in the active mode cpufreq: intel_pstate: Refuse to turn off with HWP enabled
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/pm/intel_pstate.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
index cdd1a9a7f9a2..5072e7064d13 100644
--- a/Documentation/admin-guide/pm/intel_pstate.rst
+++ b/Documentation/admin-guide/pm/intel_pstate.rst
@@ -123,7 +123,9 @@ Energy-Performance Bias (EPB) knob (otherwise), which means that the processor's
internal P-state selection logic is expected to focus entirely on performance.
This will override the EPP/EPB setting coming from the ``sysfs`` interface
-(see `Energy vs Performance Hints`_ below).
+(see `Energy vs Performance Hints`_ below). Moreover, any attempts to change
+the EPP/EPB to a value different from 0 ("performance") via ``sysfs`` in this
+configuration will be rejected.
Also, in this configuration the range of P-states available to the processor's
internal P-state selection logic is always restricted to the upper boundary