tools/power x86_energy_perf_policy.8: Document SoC Slider Options

x86_energy_perf_policy accesses the SoC Slider via standard
user/kernel APIs to the processor_thermal_soc_slider driver.

Machines that support SoC Slider largely use it instead of EPP,
which may continue to exist in a diminished role, or vanish entirely.

Signed-off-by: Len Brown <len.brown@intel.com>

tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.8

diff --git a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.8 b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.8
index 0aa981c..836553e 100644
--- a/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.8
+++ b/tools/power/x86/x86_energy_perf_policy/x86_energy_perf_policy.8
@@ -15,6 +15,8 @@
 .br
 .RB "other: (\-\-force | \-\-hwp-enable | \-\-turbo-enable)  value)"
 .br
+.RB "soc-slider: --soc-slider-balance # | --soc-slider-offset # | --platform-profile <name>"
+.br
 .RB "value: # | default | performance | balance-performance | balance-power | power"
 .SH DESCRIPTION
 \fBx86_energy_perf_policy\fP
@@ -154,6 +156,26 @@
 in the sliding window that HWP uses to maintain average frequency.
 This parameter is meaningful only when the "desired" field above is non-zero.
 Default is 0, allowing the HW to choose.
+.SH SOC SLIDER OPTIONS
+.PP
+Note that the Platform Profile Name must be "SoC Slider", and the
+Platform Profile must be "balanced" for the --soc-slider-balance
+and --soc-slider-offset options to take effect.
+.PP
+\fB--soc-slider-balance #\fP write numeric value to the SoC Slider.
+Values range from 0 to 6.
+Lower values result in higher performance,
+and higher values improve energy efficiency.
+Actual values are model specific.
+.PP
+\fB--soc-slider-offset #\fP write the numeric value to the Soc Slider Offset.
+The slider offset is the maximum value that software allows the SoC to
+autonomously add to the SoC Slider to improve energy efficiency.
+The value 0 prohibits the SoC from autonomously changing the slider.
+.PP
+\fB--platform-profile <name>"\fP set the platform profile to <name>.
+Available choices are in platform-profile-0/choices.  The Soc Slider
+driver currently supports "low-power", "balanced", and "performance".
 .SH OTHER OPTIONS
 .PP
 \fB-f, --force\fP writes the specified values without bounds checking.
@@ -208,6 +230,10 @@
 EPB: /sys/devices/system/cpu/cpu*/power/energy_perf_bias
 EPP: /sys/devices/system/cpu/cpu*/cpufreq/energy_performance_preference
 MSR: /dev/cpu/*/msr
+Platform Profile Name: /sys/class/platform-profile/platform-profile-0/name
+Platform Profile: /sys/class/platform-profile/platform-profile-0/profile
+SOC Slider Balanced: /sys/module/processor_thermal_soc_slider/parameters/slider_balance
+SOC Slider Balanced Offset: /sys/module/processor_thermal_soc_slider/parameters/slider_offset
 .fi
 .SH "SEE ALSO"
 .nf