Skip to content

Commit 3e6e078

Browse files
wkarnyrafaeljw
authored andcommitted
Documentation: cpufreq: amd-pstate: Move amd_pstate param to alphabetical order
Move amd_pstate command line param description to correct alphabetical order. Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Tested-by: Oleksandr Natalenko <oleksandr@natalenko.name> Signed-off-by: Wyes Karny <wyes.karny@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
1 parent c984f5d commit 3e6e078

1 file changed

Lines changed: 18 additions & 17 deletions

File tree

Documentation/admin-guide/kernel-parameters.txt

Lines changed: 18 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -339,6 +339,24 @@
339339
This mode requires kvm-amd.avic=1.
340340
(Default when IOMMU HW support is present.)
341341

342+
amd_pstate= [X86]
343+
disable
344+
Do not enable amd_pstate as the default
345+
scaling driver for the supported processors
346+
passive
347+
Use amd_pstate as a scaling driver, driver requests a
348+
desired performance on this abstract scale and the power
349+
management firmware translates the requests into actual
350+
hardware states (core frequency, data fabric and memory
351+
clocks etc.)
352+
active
353+
Use amd_pstate_epp driver instance as the scaling driver,
354+
driver provides a hint to the hardware if software wants
355+
to bias toward performance (0x0) or energy efficiency (0xff)
356+
to the CPPC firmware. then CPPC power algorithm will
357+
calculate the runtime workload and adjust the realtime cores
358+
frequency.
359+
342360
amijoy.map= [HW,JOY] Amiga joystick support
343361
Map of devices attached to JOY0DAT and JOY1DAT
344362
Format: <a>,<b>
@@ -7059,20 +7077,3 @@
70597077
xmon commands.
70607078
off xmon is disabled.
70617079

7062-
amd_pstate= [X86]
7063-
disable
7064-
Do not enable amd_pstate as the default
7065-
scaling driver for the supported processors
7066-
passive
7067-
Use amd_pstate as a scaling driver, driver requests a
7068-
desired performance on this abstract scale and the power
7069-
management firmware translates the requests into actual
7070-
hardware states (core frequency, data fabric and memory
7071-
clocks etc.)
7072-
active
7073-
Use amd_pstate_epp driver instance as the scaling driver,
7074-
driver provides a hint to the hardware if software wants
7075-
to bias toward performance (0x0) or energy efficiency (0xff)
7076-
to the CPPC firmware. then CPPC power algorithm will
7077-
calculate the runtime workload and adjust the realtime cores
7078-
frequency.

0 commit comments

Comments
 (0)