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| author |   Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2016-04-27 15:48:08 -0700 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-04-28 01:01:39 +0200 |
| commit | 2b3ec765058449caa27e2806a939a4bffcbeba64 (patch) | |
| tree | 4c5170e80c1b4f0c8eb4e323bfb821ae7d42b4ba /Documentation/kernel-parameters.txt | |
| parent | cpufreq: intel_pstate: Adjust policy->max (diff) | |
| download | linux-dev-2b3ec765058449caa27e2806a939a4bffcbeba64.tar.xz linux-dev-2b3ec765058449caa27e2806a939a4bffcbeba64.zip | |
cpufreq: intel_pstate: Enable PPC enforcement for servers
For platforms which are controlled via remove node manager, enable _PPC by
default. These platforms are mostly categorized as enterprise server or
performance servers. These platforms needs to go through some
certifications tests, which tests control via _PPC.
The relative risk of enabling by default is low as this is is less likely
that these systems have broken _PSS table.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 31c094fb1141..1cffa3f24732 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -1662,7 +1662,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Only load intel_pstate on systems which support hardware P state control (HWP) if available. support_acpi_ppc - Enforce ACPI _PPC performance limits. + Enforce ACPI _PPC performance limits. If the Fixed ACPI + Description Table, specifies preferred power management + profile as "Enterprise Server" or "Performance Server", + then this feature is turned on by default. intremap= [X86-64, Intel-IOMMU] on enable Interrupt Remapping (default) |