5 files changed, 84 insertions, 32 deletions
diff --git a/tools/power/cpupower/man/cpupower-frequency-info.1 b/tools/power/cpupower/man/cpupower-frequency-info.1
index 4a1918ea8f9..9c85a382e35 100644
--- a/tools/power/cpupower/man/cpupower-frequency-info.1
+++ b/tools/power/cpupower/man/cpupower-frequency-info.1
@@ -50,6 +50,9 @@ Prints out information like provided by the /proc/cpufreq interface in 2.4. and
 \fB\-m\fR \fB\-\-human\fR
 human\-readable output for the \-f, \-w, \-s and \-y parameters.
 .TP  
+\fB\-n\fR \fB\-\-no-rounding\fR
+Output frequencies and latencies without rounding off values.
+.TP  
 .SH "REMARKS"
 .LP 
 By default only values of core zero are displayed. How to display settings of
diff --git a/tools/power/cpupower/man/cpupower-idle-info.1 b/tools/power/cpupower/man/cpupower-idle-info.1
index 4178effd9e9..7b3646adb92 100644
--- a/tools/power/cpupower/man/cpupower-idle-info.1
+++ b/tools/power/cpupower/man/cpupower-idle-info.1
@@ -87,4 +87,5 @@ Thomas Renninger <trenn@suse.de>
 .fi
 .SH "SEE ALSO"
 .LP
-cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1)
+cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1),
+cpupower\-idle\-set(1)
diff --git a/tools/power/cpupower/man/cpupower-idle-set.1 b/tools/power/cpupower/man/cpupower-idle-set.1
new file mode 100644
index 00000000000..3e6799d7a79
--- /dev/null
+++ b/tools/power/cpupower/man/cpupower-idle-set.1
@@ -0,0 +1,77 @@
+.TH "CPUPOWER-IDLE-SET" "1" "0.1" "" "cpupower Manual"
+.SH "NAME"
+.LP
+cpupower idle\-set \- Utility to set cpu idle state specific kernel options
+.SH "SYNTAX"
+.LP
+cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP]
+.SH "DESCRIPTION"
+.LP
+The cpupower idle\-set subcommand allows to set cpu idle, also called cpu
+sleep state, specific options offered by the kernel. One example is disabling
+sleep states. This can be handy for power vs performance tuning.
+.SH "OPTIONS"
+.LP
+.TP
+\fB\-d\fR \fB\-\-disable\fR <STATE_NO>
+Disable a specific processor sleep state.
+.TP
+\fB\-e\fR \fB\-\-enable\fR <STATE_NO>
+Enable a specific processor sleep state.
+.TP
+\fB\-D\fR \fB\-\-disable-by-latency\fR <LATENCY>
+Disable all idle states with a equal or higher latency than <LATENCY>
+.TP
+\fB\-E\fR \fB\-\-enable-all\fR
+Enable all idle states if not enabled already.
+
+.SH "REMARKS"
+.LP
+Cpuidle Governors Policy on Disabling Sleep States
+
+.RS 4
+Depending on the used  cpuidle governor, implementing the kernel policy
+how to choose sleep states, subsequent sleep states on this core, might get
+disabled as well.
+
+There are two cpuidle governors ladder and menu. While the ladder
+governor is always available, if CONFIG_CPU_IDLE is selected, the
+menu governor additionally requires CONFIG_NO_HZ.
+
+The behavior and the effect of the disable variable depends on the
+implementation of a particular governor. In the ladder governor, for
+example, it is not coherent, i.e. if one is disabling a light state,
+then all deeper states are disabled as well. Likewise, if one enables a
+deep state but a lighter state still is disabled, then this has no effect.
+.RE
+.LP
+Disabling the Lightest Sleep State may not have any Affect
+
+.RS 4
+If criteria are not met to enter deeper sleep states and the lightest sleep
+state is chosen when idle, the kernel may still enter this sleep state,
+irrespective of whether it is disabled or not. This is also reflected in
+the usage count of the disabled sleep state when using the cpupower idle-info
+command.
+.RE
+.LP
+Selecting specific CPU Cores
+
+.RS 4
+By default processor sleep states of all CPU cores are set. Please refer
+to the cpupower(1) manpage in the \-\-cpu option section how to disable
+C-states of specific cores.
+.RE
+.SH "FILES"
+.nf
+\fI/sys/devices/system/cpu/cpu*/cpuidle/state*\fP
+\fI/sys/devices/system/cpu/cpuidle/*\fP
+.fi
+.SH "AUTHORS"
+.nf
+Thomas Renninger <trenn@suse.de>
+.fi
+.SH "SEE ALSO"
+.LP
+cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1),
+cpupower\-idle\-info(1)
diff --git a/tools/power/cpupower/man/cpupower-info.1 b/tools/power/cpupower/man/cpupower-info.1
index 58e21196f17..340bcd0be7d 100644
--- a/tools/power/cpupower/man/cpupower-info.1
+++ b/tools/power/cpupower/man/cpupower-info.1
@@ -3,7 +3,7 @@
 cpupower\-info \- Shows processor power related kernel or hardware configurations
 .SH SYNOPSIS
 .ft B
-.B cpupower info [ \-b ] [ \-s ] [ \-m ]
+.B cpupower info [ \-b ]
 
 .SH DESCRIPTION
 \fBcpupower info \fP shows kernel configurations or processor hardware
diff --git a/tools/power/cpupower/man/cpupower-set.1 b/tools/power/cpupower/man/cpupower-set.1
index 9dbd536518a..2bcc696f449 100644
--- a/tools/power/cpupower/man/cpupower-set.1
+++ b/tools/power/cpupower/man/cpupower-set.1
@@ -3,7 +3,7 @@
 cpupower\-set \- Set processor power related kernel or hardware configurations
 .SH SYNOPSIS
 .ft B
-.B cpupower set [ \-b VAL ] [ \-s VAL ] [ \-m VAL ]
+.B cpupower set [ \-b VAL ]
 
 
 .SH DESCRIPTION
@@ -55,35 +55,6 @@ Use \fBcpupower -c all info -b\fP to verify.
 
 This options needs the msr kernel driver (CONFIG_X86_MSR) loaded.
 .RE
-.PP
-\-\-sched\-mc,  \-m [ VAL ]
-.RE
-\-\-sched\-smt, \-s [ VAL ]
-.RS 4
-\-\-sched\-mc utilizes cores in one processor package/socket first before
-processes are scheduled to other processor packages/sockets.
-
-\-\-sched\-smt utilizes thread siblings of one processor core first before
-processes are scheduled to other cores.
-
-The impact on power consumption and performance (positiv or negativ) heavily
-depends on processor support for deep sleep states, frequency scaling and
-frequency boost modes and their dependencies between other thread siblings
-and processor cores.
-
-Taken over from kernel documentation:
-
-Adjust the kernel's multi-core scheduler support.
-
-Possible values are:
-.RS 2
-0 - No power saving load balance (default value)
-
-1 - Fill one thread/core/package first for long running threads
-
-2 - Also bias task wakeups to semi-idle cpu package for power
-savings
-.RE
 
 .SH "SEE ALSO"
 cpupower-info(1), cpupower-monitor(1), powertop(1)