--- /dev/null
+.libs
+libcpufreq.so
+libcpufreq.so.0
+libcpufreq.so.0.0.0
+build/ccdv
+cpufreq-info
+cpufreq-set
+cpufreq-aperf
+lib/.libs
+lib/cpufreq.lo
+lib/cpufreq.o
+lib/proc.lo
+lib/proc.o
+lib/sysfs.lo
+lib/sysfs.o
+libcpufreq.la
+po/cpufrequtils.pot
+po/*.gmo
+utils/cpufreq-info.o
+utils/cpufreq-set.o
+utils/cpufreq-aperf.o
\ No newline at end of file
--- /dev/null
+Dominik Brodowski
+Karlstr. 11a
+72072 Tübingen
+Germany
+<linux@brodo.de>
+
+Mattia Dongili
+via Latisana, 8
+00177 Rome
+Italy
+<malattia@gmail.com>
+
+Goran Koruga
+Slovenia
+<korugag@siol.net>
--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
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+
+ Finally, any free program is threatened constantly by software
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+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+\f
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
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+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
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+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
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+
+You may charge a fee for the physical act of transferring a copy, and
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+
+ 2. You may modify your copy or copies of the Program or any portion
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+above, provided that you also meet all of these conditions:
+
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+
+ b) You must cause any work that you distribute or publish, that in
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+ part thereof, to be licensed as a whole at no charge to all third
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+
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+\f
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
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+distribute the same sections as part of a whole which is a work based
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+entire whole, and thus to each and every part regardless of who wrote it.
+
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+exercise the right to control the distribution of derivative or
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+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
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+\f
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
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+
+ 5. You are not required to accept this License, since you have not
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+
+ 6. Each time you redistribute the Program (or any work based on the
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+
+If any portion of this section is held invalid or unenforceable under
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+
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+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+\f
+ 8. If the distribution and/or use of the Program is restricted in
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+
+ 9. The Free Software Foundation may publish revised and/or new versions
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+
+ 10. If you wish to incorporate parts of the Program into other free
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+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
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+
+ END OF TERMS AND CONDITIONS
+\f
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
--- /dev/null
+# Makefile for cpufrequtils
+#
+# Copyright (C) 2005,2006 Dominik Brodowski <linux@dominikbrodowski.net>
+#
+# Based largely on the Makefile for udev by:
+#
+# Copyright (C) 2003,2004 Greg Kroah-Hartman <greg@kroah.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; version 2 of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+#
+
+# --- CONFIGURATION BEGIN ---
+
+# Set the following to `true' to make a unstripped, unoptimized
+# binary. Leave this set to `false' for production use.
+DEBUG ?= false
+
+# make the build silent. Set this to something else to make it noisy again.
+V ?= false
+
+# Internationalization support (output in different languages).
+# Requires gettext.
+NLS ?= true
+
+# Set the following to 'true' to build/install the
+# cpufreq-bench benchmarking tool
+CPUFRQ_BENCH ?= false
+
+# Use the sysfs-based interface which is included in all 2.6 kernels
+# built with cpufreq support
+SYSFS ?= true
+
+# Use the proc-based interface which is used in the 2.4 patch for cpufreq
+PROC ?= true
+
+# Prefix to the directories we're installing to
+DESTDIR ?=
+
+# --- CONFIGURATION END ---
+
+
+
+# Package-related definitions. Distributions can modify the version
+# and _should_ modify the PACKAGE_BUGREPORT definition
+
+VERSION = 008
+LIB_MAJ= 0.0.0
+LIB_MIN= 0
+
+PACKAGE = cpufrequtils
+PACKAGE_BUGREPORT = cpufreq@vger.kernel.org
+LANGUAGES = de fr it cs pt
+
+
+# Directory definitions. These are default and most probably
+# do not need to be changed. Please note that DESTDIR is
+# added in front of any of them
+
+bindir ?= /usr/bin
+sbindir ?= /usr/sbin
+mandir ?= /usr/man
+includedir ?= /usr/include
+libdir ?= /usr/lib
+localedir ?= /usr/share/locale
+docdir ?= /usr/share/doc/packages/cpufrequtils
+confdir ?= /etc/
+
+# Toolchain: what tools do we use, and what options do they need:
+
+CP = cp -fpR
+INSTALL = /usr/bin/install -c
+INSTALL_PROGRAM = ${INSTALL}
+INSTALL_DATA = ${INSTALL} -m 644
+INSTALL_SCRIPT = ${INSTALL_PROGRAM}
+
+# If you are running a cross compiler, you may want to set this
+# to something more interesting, like "arm-linux-". If you want
+# to compile vs uClibc, that can be done here as well.
+CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
+CC = $(CROSS)gcc
+LD = $(CROSS)gcc
+AR = $(CROSS)ar
+STRIP = $(CROSS)strip
+RANLIB = $(CROSS)ranlib
+HOSTCC = gcc
+
+
+# Now we set up the build system
+#
+
+# set up PWD so that older versions of make will work with our build.
+PWD = $(shell pwd)
+
+export CROSS CC AR STRIP RANLIB CFLAGS LDFLAGS LIB_OBJS
+
+# check if compiler option is supported
+cc-supports = ${shell if $(CC) ${1} -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo "$(1)"; fi;}
+
+# use '-Os' optimization if available, else use -O2
+OPTIMIZATION := $(call cc-supports,-Os,-O2)
+
+WARNINGS := -Wall -Wchar-subscripts -Wpointer-arith -Wsign-compare
+WARNINGS += $(call cc-supports,-Wno-pointer-sign)
+WARNINGS += $(call cc-supports,-Wdeclaration-after-statement)
+WARNINGS += -Wshadow
+
+CPPFLAGS += -DVERSION=\"$(VERSION)\" -DPACKAGE=\"$(PACKAGE)\" \
+ -DPACKAGE_BUGREPORT=\"$(PACKAGE_BUGREPORT)\" -D_GNU_SOURCE
+
+UTIL_SRC = utils/info.c utils/set.c utils/aperf.c utils/cpuid.h
+LIB_HEADERS = lib/cpufreq.h lib/interfaces.h
+LIB_SRC = lib/cpufreq.c
+LIB_OBJS = lib/cpufreq.o
+
+CFLAGS += -pipe
+
+ifeq ($(strip $(PROC)),true)
+ LIB_OBJS += lib/proc.o
+ LIB_SRC += lib/proc.c
+ CPPFLAGS += -DINTERFACE_PROC
+endif
+
+ifeq ($(strip $(SYSFS)),true)
+ LIB_OBJS += lib/sysfs.o
+ LIB_SRC += lib/sysfs.c
+ CPPFLAGS += -DINTERFACE_SYSFS
+endif
+
+ifeq ($(strip $(NLS)),true)
+ INSTALL_NLS += install-gmo
+ COMPILE_NLS += update-gmo
+endif
+
+ifeq ($(strip $(CPUFRQ_BENCH)),true)
+ INSTALL_BENCH += install-bench
+ COMPILE_BENCH += compile-bench
+endif
+
+CFLAGS += $(WARNINGS)
+
+ifeq ($(strip $(V)),false)
+ QUIET=@$(PWD)/build/ccdv
+ HOST_PROGS=build/ccdv
+else
+ QUIET=
+ HOST_PROGS=
+endif
+
+# if DEBUG is enabled, then we do not strip or optimize
+ifeq ($(strip $(DEBUG)),true)
+ CFLAGS += -O1 -g
+ CPPFLAGS += -DDEBUG
+ STRIPCMD = /bin/true -Since_we_are_debugging
+else
+ CFLAGS += $(OPTIMIZATION) -fomit-frame-pointer
+ STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment
+endif
+
+
+
+
+# the actual make rules
+
+all: ccdv libcpufreq utils $(COMPILE_NLS) $(COMPILE_BENCH)
+
+ccdv: build/ccdv
+build/ccdv: build/ccdv.c
+ @echo "Building ccdv"
+ @$(HOSTCC) -O1 $< -o $@
+
+lib/%.o: $(LIB_SRC) $(LIB_HEADERS) build/ccdv
+ $(QUIET) $(CC) $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ -c lib/$*.c
+
+libcpufreq.so.$(LIB_MAJ): $(LIB_OBJS)
+ @if [ $(strip $(SYSFS)) != true -a $(strip $(PROC)) != true ]; then \
+ echo '*** At least one of /sys support or /proc support MUST be enabled ***'; \
+ exit -1; \
+ fi;
+ $(QUIET) $(CC) -shared $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -o $@ \
+ -Wl,-soname,libcpufreq.so.$(LIB_MIN) $(LIB_OBJS)
+ @ln -sf $@ libcpufreq.so
+ @ln -sf $@ libcpufreq.so.$(LIB_MIN)
+
+libcpufreq: libcpufreq.so.$(LIB_MAJ)
+
+cpufreq-%: libcpufreq.so.$(LIB_MAJ) $(UTIL_SRC)
+ $(QUIET) $(CC) $(CPPFLAGS) $(CFLAGS) -I. -I./lib/ -c -o utils/$@.o utils/$*.c
+ $(QUIET) $(CC) $(CFLAGS) $(LDFLAGS) -L. -o $@ utils/$@.o -lcpufreq
+ $(QUIET) $(STRIPCMD) $@
+
+utils: cpufreq-info cpufreq-set cpufreq-aperf
+
+po/$(PACKAGE).pot: $(UTIL_SRC)
+ @xgettext --default-domain=$(PACKAGE) --add-comments \
+ --keyword=_ --keyword=N_ $(UTIL_SRC) && \
+ test -f $(PACKAGE).po && \
+ mv -f $(PACKAGE).po po/$(PACKAGE).pot
+
+update-gmo: po/$(PACKAGE).pot
+ @for HLANG in $(LANGUAGES); do \
+ echo -n "Translating $$HLANG "; \
+ if msgmerge po/$$HLANG.po po/$(PACKAGE).pot -o \
+ po/$$HLANG.new.po; then \
+ mv -f po/$$HLANG.new.po po/$$HLANG.po; \
+ else \
+ echo "msgmerge for $$HLANG failed!"; \
+ rm -f po/$$HLANG.new.po; \
+ fi; \
+ msgfmt --statistics -o po/$$HLANG.gmo po/$$HLANG.po; \
+ done;
+
+compile-bench: libcpufreq
+ @V=$(V) confdir=$(confdir) $(MAKE) -C bench
+
+clean:
+ -find . \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \
+ | xargs rm -f
+ -rm -f cpufreq-info cpufreq-set cpufreq-aperf
+ -rm -f libcpufreq.so*
+ -rm -f build/ccdv
+ -rm -rf po/*.gmo po/*.pot
+ $(MAKE) -C bench clean
+
+
+install-lib:
+ $(INSTALL) -d $(DESTDIR)${libdir}
+ $(CP) libcpufreq.so* $(DESTDIR)${libdir}/
+ $(INSTALL) -d $(DESTDIR)${includedir}
+ $(INSTALL_DATA) lib/cpufreq.h $(DESTDIR)${includedir}/cpufreq.h
+
+install-tools:
+ $(INSTALL) -d $(DESTDIR)${bindir}
+ $(INSTALL_PROGRAM) cpufreq-set $(DESTDIR)${bindir}/cpufreq-set
+ $(INSTALL_PROGRAM) cpufreq-info $(DESTDIR)${bindir}/cpufreq-info
+ $(INSTALL_PROGRAM) cpufreq-aperf $(DESTDIR)${bindir}/cpufreq-aperf
+
+install-man:
+ $(INSTALL_DATA) -D man/cpufreq-set.1 $(DESTDIR)${mandir}/man1/cpufreq-set.1
+ $(INSTALL_DATA) -D man/cpufreq-info.1 $(DESTDIR)${mandir}/man1/cpufreq-info.1
+
+install-gmo:
+ $(INSTALL) -d $(DESTDIR)${localedir}
+ for HLANG in $(LANGUAGES); do \
+ echo '$(INSTALL_DATA) -D po/$$HLANG.gmo $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpufrequtils.mo'; \
+ $(INSTALL_DATA) -D po/$$HLANG.gmo $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpufrequtils.mo; \
+ done;
+
+install-bench:
+ @#DESTDIR must be set from outside to survive
+ @sbindir=$(sbindir) bindir=$(bindir) docdir=$(docdir) confdir=$(confdir) $(MAKE) -C bench install
+
+install: all install-lib install-tools install-man $(INSTALL_NLS) $(INSTALL_BENCH)
+
+uninstall:
+ - rm -f $(DESTDIR)${libdir}/libcpufreq.*
+ - rm -f $(DESTDIR)${includedir}/cpufreq.h
+ - rm -f $(DESTDIR)${bindir}/cpufreq-set
+ - rm -f $(DESTDIR)${bindir}/cpufreq-info
+ - rm -f $(DESTDIR)${bindir}/cpufreq-aperf
+ - rm -f $(DESTDIR)${mandir}/man1/cpufreq-set.1
+ - rm -f $(DESTDIR)${mandir}/man1/cpufreq-info.1
+ - for HLANG in $(LANGUAGES); do \
+ rm -f $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpufrequtils.mo; \
+ done;
+
+.PHONY: all utils libcpufreq ccdv update-po update-gmo install-lib install-tools install-man install-gmo install uninstall \
+ clean
--- /dev/null
+The cpufrequtils package (homepage:
+http://www.kernel.org/pub/linux/utils/kernel/cpufreq/cpufrequtils.html )
+consists of the following elements:
+
+
+libcpufreq
+----------
+
+"libcpufreq" is a library which offers a unified access method for userspace
+tools and programs to the cpufreq core and drivers in the Linux kernel. This
+allows for code reduction in userspace tools, a clean implementation of
+the interaction to the cpufreq core, and support for both the sysfs and proc
+interfaces [depending on configuration, see below].
+
+
+utils
+-----
+
+"cpufreq-info" determines current cpufreq settings, and provides useful
+debug information to users and bug-hunters.
+"cpufreq-set" allows to set a specific frequency and/or new cpufreq policies
+without having to type "/sys/devices/system/cpu/cpu0/cpufreq" all the time.
+
+
+debug
+-----
+
+A few debug tools helpful for cpufreq have been merged into this package,
+but as they are highly architecture specific they are not built by default.
+
+
+compilation and installation
+----------------------------
+
+make
+su
+make install
+
+should suffice on most systems. It builds default libcpufreq,
+cpufreq-set and cpufreq-info files and installs them in /usr/lib and
+/usr/bin, respectively. If you want to set up the paths differently and/or
+want to configure the package to your specific needs, you need to open
+"Makefile" with an editor of your choice and edit the block marked
+CONFIGURATION.
+
+
+THANKS
+------
+Many thanks to Mattia Dongili who wrote the autotoolization and
+libtoolization, the manpages and the italian language file for cpufrequtils;
+to Dave Jones for his feedback and his dump_psb tool; to Bruno Ducrot for his
+powernow-k8-decode and intel_gsic tools as well as the french language file;
+and to various others commenting on the previous (pre-)releases of
+cpufrequtils.
+
+
+ Dominik Brodowski
--- /dev/null
+LIBS = -L../ -lm -lcpufreq
+
+OBJS = main.o parse.o system.o benchmark.o
+CFLAGS += -D_GNU_SOURCE -I../lib -DDEFAULT_CONFIG_FILE=\"$(confdir)/cpufreq-bench.conf\"
+
+ifeq ($(strip $(V)),false)
+ CC=@../build/ccdv gcc
+else
+ CC=gcc
+endif
+
+cpufreq-bench: $(OBJS)
+ $(CC) -o $@ $(CFLAGS) $(OBJS) $(LIBS)
+
+all: cpufreq-bench
+
+install:
+ mkdir -p $(DESTDIR)/$(sbindir)
+ mkdir -p $(DESTDIR)/$(bindir)
+ mkdir -p $(DESTDIR)/$(docdir)
+ mkdir -p $(DESTDIR)/$(confdir)
+ install -m 755 cpufreq-bench $(DESTDIR)/$(sbindir)/cpufreq-bench
+ install -m 755 cpufreq-bench_plot.sh $(DESTDIR)/$(bindir)/cpufreq-bench_plot.sh
+ install -m 644 README-BENCH $(DESTDIR)/$(docdir)/README-BENCH
+ install -m 755 cpufreq-bench_script.sh $(DESTDIR)/$(docdir)/cpufreq-bench_script.sh
+ install -m 644 example.cfg $(DESTDIR)/$(confdir)/cpufreq-bench.conf
+
+clean:
+ rm -f *.o
+ rm -f cpufreq-bench
--- /dev/null
+This is cpufreq-bench, a microbenchmark for the cpufreq framework.
+
+Purpose
+=======
+
+What is this benchmark for:
+ - Identify worst case performance loss when doing dynamic frequency
+ scaling using Linux kernel governors
+ - Identify average reaction time of a governor to CPU load changes
+ - (Stress) Testing whether a cpufreq low level driver or governor works
+ as expected
+ - Identify cpufreq related performance regressions between kernels
+ - Possibly Real time priority testing? -> what happens if there are
+ processes with a higher prio than the governor's kernel thread
+ - ...
+
+What this benchmark does *not* cover:
+ - Power saving related regressions (In fact as better the performance
+ throughput is, the worse the power savings will be, but the first should
+ mostly count more...)
+ - Real world (workloads)
+
+
+Description
+===========
+
+cpufreq-bench helps to test the condition of a given cpufreq governor.
+For that purpose, it compares the performance governor to a configured
+powersave module.
+
+
+How it works
+============
+You can specify load (100% CPU load) and sleep (0% CPU load) times in us which
+will be run X time in a row (cycles):
+
+ sleep=25000
+ load=25000
+ cycles=20
+
+This part of the configuration file will create 25ms load/sleep turns,
+repeated 20 times.
+
+Adding this:
+ sleep_step=25000
+ load_step=25000
+ rounds=5
+Will increase load and sleep time by 25ms 5 times.
+Together you get following test:
+25ms load/sleep time repeated 20 times (cycles).
+50ms load/sleep time repeated 20 times (cycles).
+..
+100ms load/sleep time repeated 20 times (cycles).
+
+First it is calibrated how long a specific CPU intensive calculation
+takes on this machine and needs to be run in a loop using the performance
+governor.
+Then the above test runs are processed using the performance governor
+and the governor to test. The time the calculation really needed
+with the dynamic freq scaling governor is compared with the time needed
+on full performance and you get the overall performance loss.
+
+
+Example of expected results with ondemand governor:
+
+This shows expected results of the first two test run rounds from
+above config, you there have:
+
+100% CPU load (load) | 0 % CPU load (sleep) | round
+ 25 ms | 25 ms | 1
+ 50 ms | 50 ms | 2
+
+For example if ondemand governor is configured to have a 50ms
+sampling rate you get:
+
+In round 1, ondemand should have rather static 50% load and probably
+won't ever switch up (as long as up_threshold is above).
+
+In round 2, if the ondemand sampling times exactly match the load/sleep
+trigger of the cpufreq-bench, you will see no performance loss (compare with
+below possible ondemand sample kick ins (1)):
+
+But if ondemand always kicks in in the middle of the load sleep cycles, it
+will always see 50% loads and you get worst performance impact never
+switching up (compare with below possible ondemand sample kick ins (2))::
+
+ 50 50 50 50ms ->time
+load -----| |-----| |-----| |-----|
+ | | | | | | |
+sleep |-----| |-----| |-----| |----
+ |-----|-----|-----|-----|-----|-----|-----|---- ondemand sampling (1)
+ 100 0 100 0 100 0 100 load seen by ondemand(%)
+ |-----|-----|-----|-----|-----|-----|-----|-- ondemand sampling (2)
+ 50 50 50 50 50 50 50 load seen by ondemand(%)
+
+You can easily test all kind of load/sleep times and check whether your
+governor in average behaves as expected.
+
+
+ToDo
+====
+
+Provide a gnuplot utility script for easy generation of plots to present
+the outcome nicely.
+
+
+cpufreq-bench Command Usage
+===========================
+-l, --load=<long int> initial load time in us
+-s, --sleep=<long int> initial sleep time in us
+-x, --load-step=<long int> time to be added to load time, in us
+-y, --sleep-step=<long int> time to be added to sleep time, in us
+-c, --cpu=<unsigned int> CPU Number to use, starting at 0
+-p, --prio=<priority> scheduler priority, HIGH, LOW or DEFAULT
+-g, --governor=<governor> cpufreq governor to test
+-n, --cycles=<int> load/sleep cycles to get an avarage value to compare
+-r, --rounds<int> load/sleep rounds
+-f, --file=<configfile> config file to use
+-o, --output=<dir> output dir, must exist
+-v, --verbose verbose output on/off
+
+Due to the high priority, the application may not be responsible for some time.
+After the benchmark, the logfile is saved in OUTPUTDIR/benchmark_TIMESTAMP.log
+
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <math.h>
+
+#include "config.h"
+#include "system.h"
+#include "benchmark.h"
+
+/* Print out progress if we log into a file */
+#define show_progress(total_time, progress_time) \
+if (config->output != stdout) { \
+ fprintf(stdout, "Progress: %02lu %%\r", \
+ (progress_time * 100) / total_time); \
+ fflush(stdout); \
+}
+
+/**
+ * compute how many rounds of calculation we should do
+ * to get the given load time
+ *
+ * @param load aimed load time in µs
+ *
+ * @retval rounds of calculation
+ **/
+
+unsigned int calculate_timespace(long load, struct config *config)
+{
+ int i;
+ long long now, then;
+ unsigned int estimated = GAUGECOUNT;
+ unsigned int rounds = 0;
+ unsigned int timed = 0;
+
+ if (config->verbose)
+ printf("calibrating load of %lius, please wait...\n", load);
+
+ /* get the initial calculation time for a specific number of rounds */
+ now = get_time();
+ ROUNDS(estimated);
+ then = get_time();
+
+ timed = (unsigned int)(then - now);
+
+ /* approximation of the wanted load time by comparing with the
+ * initial calculation time */
+ for (i= 0; i < 4; i++)
+ {
+ rounds = (unsigned int)(load * estimated / timed);
+ dprintf("calibrating with %u rounds\n", rounds);
+ now = get_time();
+ ROUNDS(rounds);
+ then = get_time();
+
+ timed = (unsigned int)(then - now);
+ estimated = rounds;
+ }
+ if (config->verbose)
+ printf("calibration done\n");
+
+ return estimated;
+}
+
+/**
+ * benchmark
+ * generates a specific sleep an load time with the performance
+ * governor and compares the used time for same calculations done
+ * with the configured powersave governor
+ *
+ * @param config config values for the benchmark
+ *
+ **/
+
+void start_benchmark(struct config *config)
+{
+ unsigned int _round, cycle;
+ long long now, then;
+ long sleep_time = 0, load_time = 0;
+ long performance_time = 0, powersave_time = 0;
+ unsigned int calculations;
+ unsigned long total_time = 0, progress_time = 0;
+
+ sleep_time = config->sleep;
+ load_time = config->load;
+
+ /* For the progress bar */
+ for (_round=1; _round <= config->rounds; _round++)
+ total_time += _round * (config->sleep + config->load);
+ total_time *= 2; /* powersave and performance cycles */
+
+ for (_round=0; _round < config->rounds; _round++) {
+ performance_time = 0LL;
+ powersave_time = 0LL;
+
+ show_progress(total_time, progress_time);
+
+ /* set the cpufreq governor to "performance" which disables
+ * P-State switching. */
+ if (set_cpufreq_governor("performance", config->cpu) != 0)
+ return;
+
+ /* calibrate the calculation time. the resulting calculation
+ * _rounds should produce a load which matches the configured
+ * load time */
+ calculations = calculate_timespace(load_time, config);
+
+ if (config->verbose)
+ printf("_round %i: doing %u cycles with %u calculations"
+ " for %lius\n", _round + 1, config->cycles,
+ calculations, load_time);
+
+ fprintf(config->output, "%u %li %li ",
+ _round, load_time, sleep_time);
+
+ if (config->verbose) {
+ printf("avarage: %lius, rps:%li\n", load_time / calculations, 1000000 * calculations / load_time);
+ }
+
+ /* do some sleep/load cycles with the performance governor */
+ for (cycle = 0; cycle < config->cycles; cycle++) {
+ now = get_time();
+ usleep(sleep_time);
+ ROUNDS(calculations);
+ then = get_time();
+ performance_time += then - now - sleep_time;
+ if (config->verbose)
+ printf("performance cycle took %lius, sleep: %lius, load: %lius, rounds: %u\n",
+ (long)(then - now), sleep_time, load_time, calculations);
+ }
+ fprintf(config->output, "%li ", performance_time / config->cycles);
+
+ progress_time += sleep_time + load_time;
+ show_progress(total_time, progress_time);
+
+ /* set the powersave governor which activates P-State switching
+ * again */
+ if (set_cpufreq_governor(config->governor, config->cpu) != 0)
+ return;
+
+ /* again, do some sleep/load cycles with the powersave governor */
+ for (cycle = 0; cycle < config->cycles; cycle++) {
+ now = get_time();
+ usleep(sleep_time);
+ ROUNDS(calculations);
+ then = get_time();
+ powersave_time += then - now - sleep_time;
+ if (config->verbose)
+ printf("powersave cycle took %lius, sleep: %lius, load: %lius, rounds: %u\n",
+ (long)(then - now), sleep_time, load_time, calculations);
+ }
+
+ progress_time += sleep_time + load_time;
+
+ /* compare the avarage sleep/load cycles */
+ fprintf(config->output, "%li ", powersave_time / config->cycles);
+ fprintf(config->output, "%.3f\n", performance_time * 100.0 / powersave_time);
+ fflush(config->output);
+
+ if (config->verbose)
+ printf("performance is at %.2f%%\n", performance_time * 100.0 / powersave_time);
+
+ sleep_time += config->sleep_step;
+ load_time += config->load_step;
+ }
+}
+
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/* load loop, this schould take about 1 to 2ms to complete */
+#define ROUNDS(x) {unsigned int rcnt; \
+ for (rcnt = 0; rcnt< x*1000; rcnt++) { \
+ (void)(((int)(pow(rcnt, rcnt) * sqrt(rcnt*7230970)) ^ 7230716) ^ (int)atan2(rcnt, rcnt)); \
+ }} \
+
+
+void start_benchmark(struct config *config);
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/* initial loop count for the load calibration */
+#define GAUGECOUNT 1500
+
+/* default scheduling policy SCHED_OTHER */
+#define SCHEDULER SCHED_OTHER
+
+#define PRIORITY_DEFAULT 0
+#define PRIORITY_HIGH sched_get_priority_max(SCHEDULER)
+#define PRIORITY_LOW sched_get_priority_min(SCHEDULER)
+
+/* enable further debug messages */
+#ifdef DEBUG
+#define dprintf printf
+#else
+#define dprintf( ... ) while(0) { }
+#endif
+
--- /dev/null
+#!/bin/bash
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# Author/Copyright(c): 2009, Thomas Renninger <trenn@suse.de>, Novell Inc.
+
+# Helper script to easily create nice plots of your cpufreq-bench results
+
+dir=`mktemp -d`
+output_file="cpufreq-bench.png"
+global_title="cpufreq-bench plot"
+picture_type="jpeg"
+file[0]=""
+
+function usage()
+{
+ echo "cpufreq-bench_plot.sh [OPTIONS] logfile [measure_title] [logfile [measure_title]] ...]"
+ echo
+ echo "Options"
+ echo " -o output_file"
+ echo " -t global_title"
+ echo " -p picture_type [jpeg|gif|png|postscript|...]"
+ exit 1
+}
+
+if [ $# -eq 0 ];then
+ echo "No benchmark results file provided"
+ echo
+ usage
+fi
+
+while getopts o:t:p: name ; do
+ case $name in
+ o)
+ output_file="$OPTARG".$picture_type
+ ;;
+ t)
+ global_title="$OPTARG"
+ ;;
+ p)
+ picture_type="$OPTARG"
+ ;;
+ ?)
+ usage
+ ;;
+ esac
+done
+shift $(($OPTIND -1))
+
+plots=0
+while [ "$1" ];do
+ if [ ! -f "$1" ];then
+ echo "File $1 does not exist"
+ usage
+ fi
+ file[$plots]="$1"
+ title[$plots]="$2"
+ # echo "File: ${file[$plots]} - ${title[plots]}"
+ shift;shift
+ plots=$((plots + 1))
+done
+
+echo "set terminal $picture_type" >> $dir/plot_script.gpl
+echo "set output \"$output_file\"" >> $dir/plot_script.gpl
+echo "set title \"$global_title\"" >> $dir/plot_script.gpl
+echo "set xlabel \"sleep/load time\"" >> $dir/plot_script.gpl
+echo "set ylabel \"Performance (%)\"" >> $dir/plot_script.gpl
+
+for((plot=0;plot<$plots;plot++));do
+
+ # Sanity check
+ ###### I am to dump to get this redirected to stderr/stdout in one awk call... #####
+ cat ${file[$plot]} |grep -v "^#" |awk '{if ($2 != $3) printf("Error in measure %d:Load time %s does not equal sleep time %s, plot will not be correct\n", $1, $2, $3); ERR=1}'
+ ###### I am to dump to get this redirected in one awk call... #####
+
+ # Parse out load time (which must be equal to sleep time for a plot), divide it by 1000
+ # to get ms and parse out the performance in percentage and write it to a temp file for plotting
+ cat ${file[$plot]} |grep -v "^#" |awk '{printf "%lu %.1f\n",$2/1000, $6}' >$dir/data_$plot
+
+ if [ $plot -eq 0 ];then
+ echo -n "plot " >> $dir/plot_script.gpl
+ fi
+ echo -n "\"$dir/data_$plot\" title \"${title[$plot]}\" with lines" >> $dir/plot_script.gpl
+ if [ $(($plot + 1)) -ne $plots ];then
+ echo -n ", " >> $dir/plot_script.gpl
+ fi
+done
+echo >> $dir/plot_script.gpl
+
+gnuplot $dir/plot_script.gpl
+rm -r $dir
\ No newline at end of file
--- /dev/null
+#!/bin/bash
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+# Author/Copyright(c): 2009, Thomas Renninger <trenn@suse.de>, Novell Inc.
+
+# Ondemand up_threshold and sampling rate test script for cpufreq-bench
+# mircobenchmark.
+# Modify the general variables at the top or extend or copy out parts
+# if you want to test other things
+#
+
+# Default with latest kernels is 95, before micro account patches
+# it was 80, cmp. with git commit 808009131046b62ac434dbc796
+UP_THRESHOLD="60 80 95"
+# Depending on the kernel and the HW sampling rate could be restricted
+# and cannot be set that low...
+# E.g. before git commit cef9615a853ebc4972084f7 one could only set
+# min sampling rate of 80000 if CONFIG_HZ=250
+SAMPLING_RATE="20000 80000"
+
+function measure()
+{
+ local -i up_threshold_set
+ local -i sampling_rate_set
+
+ for up_threshold in $UP_THRESHOLD;do
+ for sampling_rate in $SAMPLING_RATE;do
+ # Set values in sysfs
+ echo $up_threshold >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
+ echo $sampling_rate >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
+ up_threshold_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold)
+ sampling_rate_set=$(cat /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate)
+
+ # Verify set values in sysfs
+ if [ ${up_threshold_set} -eq ${up_threshold} ];then
+ echo "up_threshold: $up_threshold, set in sysfs: ${up_threshold_set}"
+ else
+ echo "WARNING: Tried to set up_threshold: $up_threshold, set in sysfs: ${up_threshold_set}"
+ fi
+ if [ ${sampling_rate_set} -eq ${sampling_rate} ];then
+ echo "sampling_rate: $sampling_rate, set in sysfs: ${sampling_rate_set}"
+ else
+ echo "WARNING: Tried to set sampling_rate: $sampling_rate, set in sysfs: ${sampling_rate_set}"
+ fi
+
+ # Benchmark
+ cpufreq-bench -o /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}
+ done
+ done
+}
+
+function create_plots()
+{
+ local command
+
+ for up_threshold in $UP_THRESHOLD;do
+ command="cpufreq-bench_plot.sh -o \"sampling_rate_${SAMPLING_RATE}_up_threshold_${up_threshold}\" -t \"Ondemand sampling_rate: ${SAMPLING_RATE} comparison - Up_threshold: $up_threshold %\""
+ for sampling_rate in $SAMPLING_RATE;do
+ command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"sampling_rate = $sampling_rate\""
+ done
+ echo $command
+ eval "$command"
+ echo
+ done
+
+ for sampling_rate in $SAMPLING_RATE;do
+ command="cpufreq-bench_plot.sh -o \"up_threshold_${UP_THRESHOLD}_sampling_rate_${sampling_rate}\" -t \"Ondemand up_threshold: ${UP_THRESHOLD} % comparison - sampling_rate: $sampling_rate\""
+ for up_threshold in $UP_THRESHOLD;do
+ command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"up_threshold = $up_threshold\""
+ done
+ echo $command
+ eval "$command"
+ echo
+ done
+
+ command="cpufreq-bench_plot.sh -o \"up_threshold_${UP_THRESHOLD}_sampling_rate_${SAMPLING_RATE}\" -t \"Ondemand up_threshold: ${UP_THRESHOLD} and sampling_rate ${SAMPLING_RATE} comparison\""
+ for sampling_rate in $SAMPLING_RATE;do
+ for up_threshold in $UP_THRESHOLD;do
+ command="${command} /var/log/cpufreq-bench/up_threshold_${up_threshold}_sampling_rate_${sampling_rate}/* \"up_threshold = $up_threshold - sampling_rate = $sampling_rate\""
+ done
+ done
+ echo "$command"
+ eval "$command"
+}
+
+measure
+create_plots
\ No newline at end of file
--- /dev/null
+sleep = 50000
+load = 50000
+cpu = 0
+priority = LOW
+output = /var/log/cpufreq-bench
+sleep_step = 50000
+load_step = 50000
+cycles = 20
+rounds = 40
+verbose = 0
+governor = ondemand
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <errno.h>
+
+#include "config.h"
+#include "system.h"
+#include "benchmark.h"
+
+static struct option long_options[] =
+{
+ {"output", 1, 0, 'o'},
+ {"sleep", 1, 0, 's'},
+ {"load", 1, 0, 'l'},
+ {"verbose", 0, 0, 'v'},
+ {"cpu", 1, 0, 'c'},
+ {"governor", 1, 0, 'g'},
+ {"prio", 1, 0, 'p'},
+ {"file", 1, 0, 'f'},
+ {"cycles", 1, 0, 'n'},
+ {"rounds", 1, 0, 'r'},
+ {"load-step", 1, 0, 'x'},
+ {"sleep-step", 1, 0, 'y'},
+ {"help", 0, 0, 'h'},
+ {0, 0, 0, 0}
+};
+
+/*******************************************************************
+ usage
+*******************************************************************/
+
+void usage()
+{
+ printf("usage: ./bench\n");
+ printf("Options:\n");
+ printf(" -l, --load=<long int>\t\tinitial load time in us\n");
+ printf(" -s, --sleep=<long int>\t\tinitial sleep time in us\n");
+ printf(" -x, --load-step=<long int>\ttime to be added to load time, in us\n");
+ printf(" -y, --sleep-step=<long int>\ttime to be added to sleep time, in us\n");
+ printf(" -c, --cpu=<cpu #>\t\t\tCPU Nr. to use, starting at 0\n");
+ printf(" -p, --prio=<priority>\t\t\tscheduler priority, HIGH, LOW or DEFAULT\n");
+ printf(" -g, --governor=<governor>\t\tcpufreq governor to test\n");
+ printf(" -n, --cycles=<int>\t\t\tload/sleep cycles\n");
+ printf(" -r, --rounds<int>\t\t\tload/sleep rounds\n");
+ printf(" -f, --file=<configfile>\t\tconfig file to use\n");
+ printf(" -o, --output=<dir>\t\t\toutput path. Filename will be OUTPUTPATH/benchmark_TIMESTAMP.log\n");
+ printf(" -v, --verbose\t\t\t\tverbose output on/off\n");
+ printf(" -h, --help\t\t\t\tPrint this help screen\n");
+ exit (1);
+}
+
+/*******************************************************************
+ main
+*******************************************************************/
+
+int main(int argc, char **argv)
+{
+ int c;
+ int option_index = 0;
+ struct config *config = NULL;
+
+ config = prepare_default_config();
+
+ if (config == NULL)
+ return EXIT_FAILURE;
+
+ while (1) {
+ c = getopt_long (argc, argv, "hg:o:s:l:vc:p:f:n:r:x:y:",
+ long_options, &option_index);
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 'o':
+ if (config->output != NULL)
+ fclose(config->output);
+
+ config->output = prepare_output(optarg);
+
+ if (config->output == NULL)
+ return EXIT_FAILURE;
+
+ dprintf("user output path -> %s\n", optarg);
+ break;
+ case 's':
+ sscanf(optarg, "%li", &config->sleep);
+ dprintf("user sleep time -> %s\n", optarg);
+ break;
+ case 'l':
+ sscanf(optarg, "%li", &config->load);
+ dprintf("user load time -> %s\n", optarg);
+ break;
+ case 'c':
+ sscanf(optarg, "%u", &config->cpu);
+ dprintf("user cpu -> %s\n", optarg);
+ break;
+ case 'g':
+ strncpy(config->governor, optarg, 14);
+ dprintf("user governor -> %s\n", optarg);
+ break;
+ case 'p':
+ if (string_to_prio(optarg) != SCHED_ERR) {
+ config->prio = string_to_prio(optarg);
+ dprintf("user prio -> %s\n", optarg);
+ } else {
+ if (config != NULL) {
+ if (config->output != NULL)
+ fclose(config->output);
+ free(config);
+ }
+ usage();
+ }
+ break;
+ case 'n':
+ sscanf(optarg, "%u", &config->cycles);
+ dprintf("user cycles -> %s\n", optarg);
+ break;
+ case 'r':
+ sscanf(optarg, "%u", &config->rounds);
+ dprintf("user rounds -> %s\n", optarg);
+ break;
+ case 'x':
+ sscanf(optarg, "%li", &config->load_step);
+ dprintf("user load_step -> %s\n", optarg);
+ break;
+ case 'y':
+ sscanf(optarg, "%li", &config->sleep_step);
+ dprintf("user sleep_step -> %s\n", optarg);
+ break;
+ case 'f':
+ if (prepare_config(optarg, config))
+ return EXIT_FAILURE;
+ break;
+ case 'v':
+ config->verbose = 1;
+ dprintf("verbose output enabled\n");
+ break;
+ case 'h':
+ case '?':
+ default:
+ if (config != NULL) {
+ if (config->output != NULL)
+ fclose(config->output);
+ free(config);
+ }
+ usage();
+ }
+ }
+
+ if (config->verbose) {
+ printf("starting benchmark with parameters:\n");
+ printf("config:\n\t"
+ "sleep=%li\n\t"
+ "load=%li\n\t"
+ "sleep_step=%li\n\t"
+ "load_step=%li\n\t"
+ "cpu=%u\n\t"
+ "cycles=%u\n\t"
+ "rounds=%u\n\t"
+ "governor=%s\n\n",
+ config->sleep,
+ config->load,
+ config->sleep_step,
+ config->load_step,
+ config->cpu,
+ config->cycles,
+ config->rounds,
+ config->governor);
+ }
+
+ prepare_user(config);
+ prepare_system(config);
+ start_benchmark(config);
+
+ if (config->output != stdout)
+ fclose(config->output);
+
+ free(config);
+
+ return EXIT_SUCCESS;
+}
+
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <time.h>
+#include <dirent.h>
+
+#include <sys/utsname.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "parse.h"
+#include "config.h"
+
+/**
+ * converts priority string to priority
+ *
+ * @param str string that represents a scheduler priority
+ *
+ * @retval priority
+ * @retval SCHED_ERR when the priority doesn't exit
+ **/
+
+enum sched_prio string_to_prio(const char *str)
+{
+ if (strncasecmp("high", str, strlen(str)) == 0)
+ return SCHED_HIGH;
+ else if (strncasecmp("default", str, strlen(str)) == 0)
+ return SCHED_DEFAULT;
+ else if (strncasecmp("low", str, strlen(str)) == 0)
+ return SCHED_LOW;
+ else
+ return SCHED_ERR;
+}
+
+/**
+ * create and open logfile
+ *
+ * @param dir directory in which the logfile should be created
+ *
+ * @retval logfile on success
+ * @retval NULL when the file can't be created
+ **/
+
+FILE *prepare_output(const char *dirname)
+{
+ FILE *output = NULL;
+ int len;
+ char *filename;
+ struct utsname sysdata;
+ DIR *dir;
+
+ dir = opendir(dirname);
+ if (dir == NULL) {
+ if (mkdir(dirname, 0755)) {
+ perror("mkdir");
+ fprintf(stderr, "error: Cannot create dir %s\n",
+ dirname);
+ return NULL;
+ }
+ }
+
+ len = strlen(dirname) + 30;
+ filename = malloc(sizeof(char) * len);
+
+ if (uname(&sysdata) == 0) {
+ len += strlen(sysdata.nodename) + strlen(sysdata.release);
+ filename = realloc(filename, sizeof(char) * len);
+
+ if(filename == NULL) {
+ perror("realloc");
+ return NULL;
+ }
+
+ snprintf(filename, len - 1, "%s/benchmark_%s_%s_%li.log",
+ dirname, sysdata.nodename, sysdata.release, time(NULL));
+ } else {
+ snprintf(filename, len -1, "%s/benchmark_%li.log", dirname, time(NULL));
+ }
+
+ dprintf("logilename: %s\n", filename);
+
+ if ((output = fopen(filename, "w+")) == NULL) {
+ perror("fopen");
+ fprintf(stderr, "error: unable to open logfile\n");
+ }
+
+ fprintf(stdout, "Logfile: %s\n", filename);
+
+ free(filename);
+ fprintf(output, "#round load sleep performance powersave percentage\n");
+ return output;
+}
+
+/**
+ * returns the default config
+ *
+ * @retval default config on success
+ * @retval NULL when the output file can't be created
+ **/
+
+struct config *prepare_default_config()
+{
+ struct config *config = malloc(sizeof(struct config));
+
+ dprintf("loading defaults\n");
+
+ config->sleep = 500000;
+ config->load = 500000;
+ config->sleep_step = 500000;
+ config->load_step = 500000;
+ config->cycles = 5;
+ config->rounds = 50;
+ config->cpu = 0;
+ config->prio = SCHED_HIGH;
+ config->verbose = 0;
+ strncpy(config->governor, "ondemand", 8);
+
+ config->output = stdout;
+
+#ifdef DEFAULT_CONFIG_FILE
+ if (prepare_config(DEFAULT_CONFIG_FILE, config))
+ return NULL;
+#endif
+ return config;
+}
+
+/**
+ * parses config file and returns the config to the caller
+ *
+ * @param path config file name
+ *
+ * @retval 1 on error
+ * @retval 0 on success
+ **/
+
+int prepare_config(const char *path, struct config *config)
+{
+ size_t len = 0;
+ char *opt, *val, *line = NULL;
+ FILE *configfile = fopen(path, "r");
+
+ if (config == NULL) {
+ fprintf(stderr, "error: config is NULL\n");
+ return 1;
+ }
+
+ if (configfile == NULL) {
+ perror("fopen");
+ fprintf(stderr, "error: unable to read configfile\n");
+ free(config);
+ return 1;
+ }
+
+ while (getline(&line, &len, configfile) != -1)
+ {
+ if (line[0] == '#' || line[0] == ' ')
+ continue;
+
+ sscanf(line, "%as = %as", &opt, &val);
+
+ dprintf("parsing: %s -> %s\n", opt, val);
+
+ if (strncmp("sleep", opt, strlen(opt)) == 0)
+ sscanf(val, "%li", &config->sleep);
+
+ else if (strncmp("load", opt, strlen(opt)) == 0)
+ sscanf(val, "%li", &config->load);
+
+ else if (strncmp("load_step", opt, strlen(opt)) == 0)
+ sscanf(val, "%li", &config->load_step);
+
+ else if (strncmp("sleep_step", opt, strlen(opt)) == 0)
+ sscanf(val, "%li", &config->sleep_step);
+
+ else if (strncmp("cycles", opt, strlen(opt)) == 0)
+ sscanf(val, "%u", &config->cycles);
+
+ else if (strncmp("rounds", opt, strlen(opt)) == 0)
+ sscanf(val, "%u", &config->rounds);
+
+ else if (strncmp("verbose", opt, strlen(opt)) == 0)
+ sscanf(val, "%u", &config->verbose);
+
+ else if (strncmp("output", opt, strlen(opt)) == 0)
+ config->output = prepare_output(val);
+
+ else if (strncmp("cpu", opt, strlen(opt)) == 0)
+ sscanf(val, "%u", &config->cpu);
+
+ else if (strncmp("governor", opt, 14) == 0)
+ strncpy(config->governor, val, 14);
+
+ else if (strncmp("priority", opt, strlen(opt)) == 0) {
+ if (string_to_prio(val) != SCHED_ERR)
+ config->prio = string_to_prio(val);
+ }
+ }
+
+ free(line);
+ free(opt);
+ free(val);
+
+ return 0;
+}
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/* struct that holds the required config parameters */
+struct config
+{
+ long sleep; /* sleep time in µs */
+ long load; /* load time in µs */
+ long sleep_step; /* time value which changes the
+ * sleep time after every round in µs */
+ long load_step; /* time value which changes the
+ * load time after every round in µs */
+ unsigned int cycles; /* calculation cycles with the same sleep/load time */
+ unsigned int rounds; /* calculation rounds with iterated sleep/load time */
+ unsigned int cpu; /* cpu for which the affinity is set */
+ char governor[15]; /* cpufreq governor */
+ enum sched_prio /* possible scheduler priorities */
+ {
+ SCHED_ERR=-1,SCHED_HIGH, SCHED_DEFAULT, SCHED_LOW
+ } prio;
+
+ unsigned int verbose; /* verbose output */
+ FILE *output; /* logfile */
+ char *output_filename; /* logfile name, must be freed at the end
+ if output != NULL and output != stdout*/
+};
+
+enum sched_prio string_to_prio(const char *str);
+
+FILE *prepare_output(const char *dir);
+
+int prepare_config(const char *path, struct config *config);
+struct config *prepare_default_config();
+
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <sched.h>
+
+#include <cpufreq.h>
+
+#include "config.h"
+#include "system.h"
+
+/**
+ * returns time since epoch in µs
+ *
+ * @retval time
+ **/
+
+long long int get_time()
+{
+ struct timeval now;
+
+ gettimeofday(&now, NULL);
+
+ return (long long int)(now.tv_sec * 1000000LL + now.tv_usec);
+}
+
+/**
+ * sets the cpufreq governor
+ *
+ * @param governor cpufreq governor name
+ * @param cpu cpu for which the governor should be set
+ *
+ * @retval 0 on success
+ * @retval -1 when failed
+ **/
+
+int set_cpufreq_governor(char *governor, unsigned int cpu)
+{
+
+ dprintf("set %s as cpufreq governor\n", governor);
+
+ if (cpufreq_cpu_exists(cpu) != 0) {
+ perror("cpufreq_cpu_exists");
+ fprintf(stderr, "error: cpu %u does not exist\n", cpu);
+ return -1;
+ }
+
+ if (cpufreq_modify_policy_governor(cpu, governor) != 0) {
+ perror("cpufreq_modify_policy_governor");
+ fprintf(stderr, "error: unable to set %s governor\n", governor);
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * sets cpu affinity for the process
+ *
+ * @param cpu cpu# to which the affinity should be set
+ *
+ * @retval 0 on success
+ * @retval -1 when setting the affinity failed
+ **/
+
+int set_cpu_affinity(unsigned int cpu)
+{
+ cpu_set_t cpuset;
+
+ CPU_ZERO(&cpuset);
+ CPU_SET(cpu, &cpuset);
+
+ dprintf("set affinity to cpu #%u\n", cpu);
+
+ if (sched_setaffinity(getpid(), sizeof(cpu_set_t), &cpuset) < 0) {
+ perror("sched_setaffinity");
+ fprintf(stderr, "warning: unable to set cpu affinity\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * sets the process priority parameter
+ *
+ * @param priority priority value
+ *
+ * @retval 0 on success
+ * @retval -1 when setting the priority failed
+ **/
+
+int set_process_priority(int priority)
+{
+ struct sched_param param;
+
+ dprintf("set scheduler priority to %i\n", priority);
+
+ param.sched_priority = priority;
+
+ if (sched_setscheduler(0, SCHEDULER, ¶m) < 0) {
+ perror("sched_setscheduler");
+ fprintf(stderr, "warning: unable to set scheduler priority\n");
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * notifys the user that the benchmark may run some time
+ *
+ * @param config benchmark config values
+ *
+ **/
+
+void prepare_user(const struct config *config)
+{
+ unsigned long sleep_time = 0;
+ unsigned long load_time = 0;
+ unsigned int round;
+
+ for (round = 0; round < config->rounds; round++) {
+ sleep_time += 2 * config->cycles * (config->sleep + config->sleep_step * round);
+ load_time += 2 * config->cycles * (config->load + config->load_step * round) + (config->load + config->load_step * round * 4);
+ }
+
+ if (config->verbose || config->output != stdout)
+ printf("approx. test duration: %im\n",
+ (int)((sleep_time + load_time) / 60000000));
+}
+
+/**
+ * sets up the cpu affinity and scheduler priority
+ *
+ * @param config benchmark config values
+ *
+ **/
+
+void prepare_system(const struct config *config)
+{
+ if (config->verbose)
+ printf("set cpu affinity to cpu #%u\n", config->cpu);
+
+ set_cpu_affinity(config->cpu);
+
+ switch (config->prio) {
+ case SCHED_HIGH:
+ if (config->verbose)
+ printf("high priority condition requested\n");
+
+ set_process_priority(PRIORITY_HIGH);
+ break;
+ case SCHED_LOW:
+ if (config->verbose)
+ printf("low priority condition requested\n");
+
+ set_process_priority(PRIORITY_LOW);
+ break;
+ default:
+ if (config->verbose)
+ printf("default priority condition requested\n");
+
+ set_process_priority(PRIORITY_DEFAULT);
+ }
+}
+
--- /dev/null
+/* cpufreq-bench CPUFreq microbenchmark
+ *
+ * Copyright (C) 2008 Christian Kornacker <ckornacker@suse.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include "parse.h"
+
+long long get_time();
+
+int set_cpufreq_governor(char *governor, unsigned int cpu);
+int set_cpu_affinity(unsigned int cpu);
+int set_process_priority(int priority);
+
+void prepare_user(const struct config *config);
+void prepare_system(const struct config *config);
--- /dev/null
+/* ccdv.c
+ *
+ * Copyright (C) 2002-2003, by Mike Gleason, NcFTP Software.
+ * All Rights Reserved.
+ *
+ * Licensed under the GNU Public License.
+ */
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/time.h>
+#include <sys/wait.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#define SETCOLOR_SUCCESS (gANSIEscapes ? "\033\1331;32m" : "")
+#define SETCOLOR_FAILURE (gANSIEscapes ? "\033\1331;31m" : "")
+#define SETCOLOR_WARNING (gANSIEscapes ? "\033\1331;33m" : "")
+#define SETCOLOR_NORMAL (gANSIEscapes ? "\033\1330;39m" : "")
+
+#define TEXT_BLOCK_SIZE 8192
+#define INDENT 2
+
+#define TERMS "vt100:vt102:vt220:vt320:xterm:xterm-color:ansi:linux:scoterm:scoansi:dtterm:cons25:cygwin"
+
+size_t gNBufUsed = 0, gNBufAllocated = 0;
+char *gBuf = NULL;
+int gCCPID;
+char gAction[200] = "";
+char gTarget[200] = "";
+char gAr[32] = "";
+char gArLibraryTarget[64] = "";
+int gDumpCmdArgs = 0;
+char gArgsStr[1000];
+int gColumns = 80;
+int gANSIEscapes = 0;
+int gExitStatus = 95;
+
+static void DumpFormattedOutput(void)
+{
+ char *cp;
+ char spaces[8 + 1] = " ";
+ char *saved;
+ int curcol;
+ int i;
+
+ curcol = 0;
+ saved = NULL;
+ for (cp = gBuf + ((gDumpCmdArgs == 0) ? strlen(gArgsStr) : 0); ; cp++) {
+ if (*cp == '\0') {
+ if (saved != NULL) {
+ cp = saved;
+ saved = NULL;
+ } else break;
+ }
+ if (*cp == '\r')
+ continue;
+ if (*cp == '\t') {
+ saved = cp + 1;
+ cp = spaces + 8 - (8 - ((curcol - INDENT - 1) % 8));
+ }
+ if (curcol == 0) {
+ for (i = INDENT; --i >= 0; )
+ putchar(' ');
+ curcol = INDENT;
+ }
+ putchar(*cp);
+ if (++curcol == (gColumns - 1)) {
+ putchar('\n');
+ curcol = 0;
+ } else if (*cp == '\n')
+ curcol = 0;
+ }
+ free(gBuf);
+} /* DumpFormattedOutput */
+
+
+
+/* Difftime(), only for timeval structures. */
+static void TimeValSubtract(struct timeval *tdiff, struct timeval *t1, struct timeval *t0)
+{
+ tdiff->tv_sec = t1->tv_sec - t0->tv_sec;
+ tdiff->tv_usec = t1->tv_usec - t0->tv_usec;
+ if (tdiff->tv_usec < 0) {
+ tdiff->tv_sec--;
+ tdiff->tv_usec += 1000000;
+ }
+} /* TimeValSubtract */
+
+
+
+static void Wait(void)
+{
+ int pid2, status;
+
+ do {
+ status = 0;
+ pid2 = (int) waitpid(gCCPID, &status, 0);
+ } while (((pid2 >= 0) && (! WIFEXITED(status))) || ((pid2 < 0) && (errno == EINTR)));
+ if (WIFEXITED(status))
+ gExitStatus = WEXITSTATUS(status);
+} /* Wait */
+
+
+
+static int SlurpProgress(int fd)
+{
+ char s1[71];
+ char *newbuf;
+ int nready;
+ size_t ntoread;
+ ssize_t nread;
+ struct timeval now, tnext, tleft;
+ fd_set ss;
+ fd_set ss2;
+ const char *trail = "/-\\|", *trailcp;
+
+ trailcp = trail;
+ snprintf(s1, sizeof(s1), "%s%s%s... ", gAction, gTarget[0] ? " " : "", gTarget);
+ printf("\r%-70s%-9s", s1, "");
+ fflush(stdout);
+
+ gettimeofday(&now, NULL);
+ tnext = now;
+ tnext.tv_sec++;
+ tleft.tv_sec = 1;
+ tleft.tv_usec = 0;
+ FD_ZERO(&ss2);
+ FD_SET(fd, &ss2);
+ for(;;) {
+ if (gNBufUsed == (gNBufAllocated - 1)) {
+ if ((newbuf = (char *) realloc(gBuf, gNBufAllocated + TEXT_BLOCK_SIZE)) == NULL) {
+ perror("ccdv: realloc");
+ return (-1);
+ }
+ gNBufAllocated += TEXT_BLOCK_SIZE;
+ gBuf = newbuf;
+ }
+ for (;;) {
+ ss = ss2;
+ nready = select(fd + 1, &ss, NULL, NULL, &tleft);
+ if (nready == 1)
+ break;
+ if (nready < 0) {
+ if (errno != EINTR) {
+ perror("ccdv: select");
+ return (-1);
+ }
+ continue;
+ }
+ gettimeofday(&now, NULL);
+ if ((now.tv_sec > tnext.tv_sec) || ((now.tv_sec == tnext.tv_sec) && (now.tv_usec >= tnext.tv_usec))) {
+ tnext = now;
+ tnext.tv_sec++;
+ tleft.tv_sec = 1;
+ tleft.tv_usec = 0;
+ printf("\r%-71s%c%-7s", s1, *trailcp, "");
+ fflush(stdout);
+ if (*++trailcp == '\0')
+ trailcp = trail;
+ } else {
+ TimeValSubtract(&tleft, &tnext, &now);
+ }
+ }
+ ntoread = (gNBufAllocated - gNBufUsed - 1);
+ nread = read(fd, gBuf + gNBufUsed, ntoread);
+ if (nread < 0) {
+ if (errno == EINTR)
+ continue;
+ perror("ccdv: read");
+ return (-1);
+ } else if (nread == 0) {
+ break;
+ }
+ gNBufUsed += nread;
+ gBuf[gNBufUsed] = '\0';
+ }
+ snprintf(s1, sizeof(s1), "%s%s%s: ", gAction, gTarget[0] ? " " : "", gTarget);
+ Wait();
+ if (gExitStatus == 0) {
+ printf("\r%-70s", s1);
+ printf("[%s%s%s]", ((gNBufUsed - strlen(gArgsStr)) < 4) ? SETCOLOR_SUCCESS : SETCOLOR_WARNING, "OK", SETCOLOR_NORMAL);
+ printf("%-5s\n", " ");
+ } else {
+ printf("\r%-70s", s1);
+ printf("[%s%s%s]", SETCOLOR_FAILURE, "ERROR", SETCOLOR_NORMAL);
+ printf("%-2s\n", " ");
+ gDumpCmdArgs = 1; /* print cmd when there are errors */
+ }
+ fflush(stdout);
+ return (0);
+} /* SlurpProgress */
+
+
+
+static int SlurpAll(int fd)
+{
+ char *newbuf;
+ size_t ntoread;
+ ssize_t nread;
+
+ printf("%s%s%s.\n", gAction, gTarget[0] ? " " : "", gTarget);
+ fflush(stdout);
+
+ for(;;) {
+ if (gNBufUsed == (gNBufAllocated - 1)) {
+ if ((newbuf = (char *) realloc(gBuf, gNBufAllocated + TEXT_BLOCK_SIZE)) == NULL) {
+ perror("ccdv: realloc");
+ return (-1);
+ }
+ gNBufAllocated += TEXT_BLOCK_SIZE;
+ gBuf = newbuf;
+ }
+ ntoread = (gNBufAllocated - gNBufUsed - 1);
+ nread = read(fd, gBuf + gNBufUsed, ntoread);
+ if (nread < 0) {
+ if (errno == EINTR)
+ continue;
+ perror("ccdv: read");
+ return (-1);
+ } else if (nread == 0) {
+ break;
+ }
+ gNBufUsed += nread;
+ gBuf[gNBufUsed] = '\0';
+ }
+ Wait();
+ gDumpCmdArgs = (gExitStatus != 0); /* print cmd when there are errors */
+ return (0);
+} /* SlurpAll */
+
+
+
+static const char *Basename(const char *path)
+{
+ const char *cp;
+ cp = strrchr(path, '/');
+ if (cp == NULL)
+ return (path);
+ return (cp + 1);
+} /* Basename */
+
+
+
+static const char * Extension(const char *path)
+{
+ const char *cp = path;
+ cp = strrchr(path, '.');
+ if (cp == NULL)
+ return ("");
+ // printf("Extension='%s'\n", cp);
+ return (cp);
+} /* Extension */
+
+
+
+static void Usage(void)
+{
+ fprintf(stderr, "Usage: ccdv /path/to/cc CFLAGS...\n\n");
+ fprintf(stderr, "I wrote this to reduce the deluge Make output to make finding actual problems\n");
+ fprintf(stderr, "easier. It is intended to be invoked from Makefiles, like this. Instead of:\n\n");
+ fprintf(stderr, "\t.c.o:\n");
+ fprintf(stderr, "\t\t$(CC) $(CFLAGS) $(DEFS) $(CPPFLAGS) $< -c\n");
+ fprintf(stderr, "\nRewrite your rule so it looks like:\n\n");
+ fprintf(stderr, "\t.c.o:\n");
+ fprintf(stderr, "\t\t@ccdv $(CC) $(CFLAGS) $(DEFS) $(CPPFLAGS) $< -c\n\n");
+ fprintf(stderr, "ccdv 1.1.0 is Free under the GNU Public License. Enjoy!\n");
+ fprintf(stderr, " -- Mike Gleason, NcFTP Software <http://www.ncftp.com>\n");
+ exit(96);
+} /* Usage */
+
+
+
+int main(int argc, char **argv)
+{
+ int pipe1[2];
+ int devnull;
+ char emerg[256];
+ int fd;
+ int nread;
+ int i;
+ int cc = 0, pch = 0;
+ const char *quote;
+
+ if (argc < 2)
+ Usage();
+
+ snprintf(gAction, sizeof(gAction), "Running %s", Basename(argv[1]));
+ memset(gArgsStr, 0, sizeof(gArgsStr));
+ for (i = 1; i < argc; i++) {
+ // printf("argv[%d]='%s'\n", i, argv[i]);
+ quote = (strchr(argv[i], ' ') != NULL) ? "\"" : "";
+ snprintf(gArgsStr + strlen(gArgsStr), sizeof(gArgsStr) - strlen(gArgsStr), "%s%s%s%s%s", (i == 1) ? "" : " ", quote, argv[i], quote, (i == (argc - 1)) ? "\n" : "");
+ if ((strcmp(argv[i], "-o") == 0) && ((i + 1) < argc)) {
+ if (strcasecmp(Extension(argv[i + 1]), ".o") != 0) {
+ strcpy(gAction, "Linking");
+ snprintf(gTarget, sizeof(gTarget), "%s", Basename(argv[i + 1]));
+ }
+ } else if (strchr("-+", (int) argv[i][0]) != NULL) {
+ continue;
+ } else if (strncasecmp(Extension(argv[i]), ".c", 2) == 0) {
+ cc++;
+ snprintf(gTarget, sizeof(gTarget), "%s", Basename(argv[i]));
+ // printf("gTarget='%s'\n", gTarget);
+ } else if ((strncasecmp(Extension(argv[i]), ".h", 2) == 0) && (cc == 0)) {
+ pch++;
+ snprintf(gTarget, sizeof(gTarget), "%s", Basename(argv[i]));
+ } else if ((i == 1) && (strcmp(Basename(argv[i]), "ar") == 0)) {
+ snprintf(gAr, sizeof(gAr), "%s", Basename(argv[i]));
+ } else if ((gArLibraryTarget[0] == '\0') && (strcasecmp(Extension(argv[i]), ".a") == 0)) {
+ snprintf(gArLibraryTarget, sizeof(gArLibraryTarget), "%s", Basename(argv[i]));
+ }
+ }
+ if ((gAr[0] != '\0') && (gArLibraryTarget[0] != '\0')) {
+ strcpy(gAction, "Creating library");
+ snprintf(gTarget, sizeof(gTarget), "%s", gArLibraryTarget);
+ } else if (pch > 0) {
+ strcpy(gAction, "Precompiling");
+ } else if (cc > 0) {
+ strcpy(gAction, "Compiling");
+ }
+
+ if (pipe(pipe1) < 0) {
+ perror("ccdv: pipe");
+ exit(97);
+ }
+
+ (void) close(0);
+ devnull = open("/dev/null", O_RDWR, 00666);
+ if ((devnull != 0) && (dup2(devnull, 0) == 0))
+ close(devnull);
+
+ gCCPID = (int) fork();
+ if (gCCPID < 0) {
+ (void) close(pipe1[0]);
+ (void) close(pipe1[1]);
+ perror("ccdv: fork");
+ exit(98);
+ } else if (gCCPID == 0) {
+ /* Child */
+ (void) close(pipe1[0]); /* close read end */
+ if (pipe1[1] != 1) { /* use write end on stdout */
+ (void) dup2(pipe1[1], 1);
+ (void) close(pipe1[1]);
+ }
+ (void) dup2(1, 2); /* use write end on stderr */
+ execvp(argv[1], argv + 1);
+ perror(argv[1]);
+ exit(99);
+ }
+
+ /* parent */
+ (void) close(pipe1[1]); /* close write end */
+ fd = pipe1[0]; /* use read end */
+
+ gColumns = (getenv("COLUMNS") != NULL) ? atoi(getenv("COLUMNS")) : 80;
+ gANSIEscapes = (getenv("TERM") != NULL) && (strstr(TERMS, getenv("TERM")) != NULL);
+ gBuf = (char *) malloc(TEXT_BLOCK_SIZE);
+ if (gBuf == NULL)
+ goto panic;
+ gNBufUsed = 0;
+ gNBufAllocated = TEXT_BLOCK_SIZE;
+ if (strlen(gArgsStr) < (gNBufAllocated - 1)) {
+ strcpy(gBuf, gArgsStr);
+ gNBufUsed = strlen(gArgsStr);
+ }
+
+ if (isatty(1)) {
+ if (SlurpProgress(fd) < 0)
+ goto panic;
+ } else {
+ if (SlurpAll(fd) < 0)
+ goto panic;
+ }
+ DumpFormattedOutput();
+ exit(gExitStatus);
+
+panic:
+ gDumpCmdArgs = 1; /* print cmd when there are errors */
+ DumpFormattedOutput();
+ while ((nread = read(fd, emerg, (size_t) sizeof(emerg))) > 0)
+ (void) write(2, emerg, (size_t) nread);
+ Wait();
+ exit(gExitStatus);
+} /* main */
--- /dev/null
+default: all
+
+centrino-decode: centrino-decode.c
+ $(CC) $(CFLAGS) -o centrino-decode centrino-decode.c
+
+dump_psb: dump_psb.c
+ $(CC) $(CFLAGS) -o dump_psb dump_psb.c
+
+intel_gsic: intel_gsic.c
+ $(CC) $(CFLAGS) -o intel_gsic -llrmi intel_gsic.c
+
+powernow-k8-decode: powernow-k8-decode.c
+ $(CC) $(CFLAGS) -o powernow-k8-decode powernow-k8-decode.c
+
+all: centrino-decode dump_psb intel_gsic powernow-k8-decode
+
+clean:
+ rm -rf centrino-decode dump_psb intel_gsic powernow-k8-decode
+
+.PHONY: all default clean
--- /dev/null
+/*
+ * (C) 2003 - 2004 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ *
+ * Based on code found in
+ * linux/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+ * and originally developed by Jeremy Fitzhardinge.
+ *
+ * USAGE: simply run it to decode the current settings on CPU 0,
+ * or pass the CPU number as argument, or pass the MSR content
+ * as argument.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define MCPU 32
+
+#define MSR_IA32_PERF_STATUS 0x198
+
+static int rdmsr(unsigned int cpu, unsigned int msr,
+ unsigned int *lo, unsigned int *hi)
+{
+ int fd;
+ char file[20];
+ unsigned long long val;
+ int retval = -1;
+
+ *lo = *hi = 0;
+
+ if (cpu > MCPU)
+ goto err1;
+
+ sprintf(file, "/dev/cpu/%d/msr", cpu);
+ fd = open(file, O_RDONLY);
+
+ if (fd < 0)
+ goto err1;
+
+ if (lseek(fd, msr, SEEK_CUR) == -1)
+ goto err2;
+
+ if (read(fd, &val, 8) != 8)
+ goto err2;
+
+ *lo = (uint32_t )(val & 0xffffffffull);
+ *hi = (uint32_t )(val>>32 & 0xffffffffull);
+
+ retval = 0;
+err2:
+ close(fd);
+err1:
+ return retval;
+}
+
+static void decode (unsigned int msr)
+{
+ unsigned int multiplier;
+ unsigned int mv;
+
+ multiplier = ((msr >> 8) & 0xFF);
+
+ mv = (((msr & 0xFF) * 16) + 700);
+
+ printf("0x%x means multiplier %d @ %d mV\n", msr, multiplier, mv);
+}
+
+static int decode_live(unsigned int cpu)
+{
+ unsigned int lo, hi;
+ int err;
+
+ err = rdmsr(cpu, MSR_IA32_PERF_STATUS, &lo, &hi);
+
+ if (err) {
+ printf("can't get MSR_IA32_PERF_STATUS for cpu %d\n", cpu);
+ printf("Possible trouble: you don't run an Enhanced SpeedStep capable cpu\n");
+ printf("or you are not root, or the msr driver is not present\n");
+ return 1;
+ }
+
+ decode(lo);
+
+ return 0;
+}
+
+int main (int argc, char **argv)
+{
+ unsigned int cpu, mode = 0;
+
+ if (argc < 2)
+ cpu = 0;
+ else {
+ cpu = strtoul(argv[1], NULL, 0);
+ if (cpu >= MCPU)
+ mode = 1;
+ }
+
+ if (mode)
+ decode(cpu);
+ else
+ decode_live(cpu);
+
+ return 0;
+}
--- /dev/null
+/*
+ * dump_psb. (c) 2004, Dave Jones, Red Hat Inc.
+ * Licensed under the GPL v2.
+ */
+
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#define _GNU_SOURCE
+#include <getopt.h>
+
+#include <sys/mman.h>
+
+#define LEN (0x100000 - 0xc0000)
+#define OFFSET (0xc0000)
+
+#ifndef __packed
+#define __packed __attribute((packed))
+#endif
+
+static long relevant;
+
+static const int fid_to_mult[32] = {
+ 110, 115, 120, 125, 50, 55, 60, 65,
+ 70, 75, 80, 85, 90, 95, 100, 105,
+ 30, 190, 40, 200, 130, 135, 140, 210,
+ 150, 225, 160, 165, 170, 180, -1, -1,
+};
+
+static const int vid_to_voltage[32] = {
+ 2000, 1950, 1900, 1850, 1800, 1750, 1700, 1650,
+ 1600, 1550, 1500, 1450, 1400, 1350, 1300, 0,
+ 1275, 1250, 1225, 1200, 1175, 1150, 1125, 1100,
+ 1075, 1050, 1024, 1000, 975, 950, 925, 0,
+};
+
+struct psb_header {
+ char signature[10];
+ u_char version;
+ u_char flags;
+ u_short settlingtime;
+ u_char res1;
+ u_char numpst;
+} __packed;
+
+struct pst_header {
+ u_int32_t cpuid;
+ u_char fsb;
+ u_char maxfid;
+ u_char startvid;
+ u_char numpstates;
+} __packed;
+
+static u_int fsb;
+static u_int sgtc;
+
+static int
+decode_pst(char *p, int npstates)
+{
+ int i;
+ int freq, fid, vid;
+
+ for (i = 0; i < npstates; ++i) {
+ fid = *p++;
+ vid = *p++;
+ freq = 100 * fid_to_mult[fid] * fsb;
+
+ printf(" %2d %8dkHz FID %02x (%2d.%01d) VID %02x (%4dmV)\n",
+ i,
+ freq,
+ fid, fid_to_mult[fid]/10, fid_to_mult[fid]%10,
+ vid, vid_to_voltage[vid]);
+ }
+
+ return 0;
+}
+
+static
+void decode_psb(char *p, int numpst)
+{
+ int i;
+ struct psb_header *psb;
+ struct pst_header *pst;
+
+ psb = (struct psb_header*) p;
+
+ if (psb->version != 0x12)
+ return;
+
+ printf("PSB version: %hhx flags: %hhx settling time %hhuus res1 %hhx num pst %hhu\n",
+ psb->version,
+ psb->flags,
+ psb->settlingtime,
+ psb->res1,
+ psb->numpst);
+ sgtc = psb->settlingtime * 100;
+
+ if (sgtc < 10000)
+ sgtc = 10000;
+
+ p = ((char *) psb) + sizeof(struct psb_header);
+
+ if (numpst < 0)
+ numpst = psb->numpst;
+ else
+ printf("Overriding number of pst :%d\n", numpst);
+
+ for (i = 0; i < numpst; i++) {
+ pst = (struct pst_header*) p;
+
+ if (relevant != 0) {
+ if (relevant!= pst->cpuid)
+ goto next_one;
+ }
+
+ printf(" PST %d cpuid %.3x fsb %hhu mfid %hhx svid %hhx numberstates %hhu\n",
+ i+1,
+ pst->cpuid,
+ pst->fsb,
+ pst->maxfid,
+ pst->startvid,
+ pst->numpstates);
+
+ fsb = pst->fsb;
+ decode_pst(p + sizeof(struct pst_header), pst->numpstates);
+
+next_one:
+ p += sizeof(struct pst_header) + 2*pst->numpstates;
+ }
+
+}
+
+static struct option info_opts[] = {
+ {.name = "numpst", .has_arg=no_argument, .flag=NULL, .val='n'},
+};
+
+void print_help(void)
+{
+ printf ("Usage: dump_psb [options]\n");
+ printf ("Options:\n");
+ printf (" -n, --numpst Set number of PST tables to scan\n");
+ printf (" -r, --relevant Only display PSTs relevant to cpuid N\n");
+}
+
+int
+main(int argc, char *argv[])
+{
+ int fd;
+ int numpst=-1;
+ int ret=0, cont=1;
+ char *mem = NULL;
+ char *p;
+
+ do {
+ ret = getopt_long(argc, argv, "hr:n:", info_opts, NULL);
+ switch (ret){
+ case '?':
+ case 'h':
+ print_help();
+ cont = 0;
+ break;
+ case 'r':
+ relevant = strtol(optarg, NULL, 16);
+ break;
+ case 'n':
+ numpst = strtol(optarg, NULL, 10);
+ break;
+ case -1:
+ cont = 0;
+ break;
+ }
+
+ } while(cont);
+
+ fd = open("/dev/mem", O_RDONLY);
+ if (fd < 0) {
+ printf ("Couldn't open /dev/mem. Are you root?\n");
+ exit(1);
+ }
+
+ mem = mmap(mem, 0x100000 - 0xc0000, PROT_READ, MAP_SHARED, fd, 0xc0000);
+ close(fd);
+
+ for (p = mem; p - mem < LEN; p+=16) {
+ if (memcmp(p, "AMDK7PNOW!", 10) == 0) {
+ decode_psb(p, numpst);
+ break;
+ }
+ }
+
+ munmap(mem, LEN);
+ return 0;
+}
--- /dev/null
+/*
+ * (C) 2003 Bruno Ducrot
+ * (C) 2004 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ *
+ * Based on code found in
+ * linux/include/asm-i386/ist.h and linux/arch/i386/kernel/setup.c
+ * and originally developed by Andy Grover <andrew.grover@intel.com>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <lrmi.h>
+
+int main (void)
+{
+ struct LRMI_regs r;
+ int retval;
+
+ if (!LRMI_init())
+ return 0;
+
+ memset(&r, 0, sizeof(r));
+
+ r.eax = 0x0000E980;
+ r.edx = 0x47534943;
+
+ retval = LRMI_int(0x15, &r);
+
+ if (!retval) {
+ printf("Failed!\n");
+ return 0;
+ }
+ if (r.eax == 0x47534943) {
+ printf("BIOS supports GSIC call:\n");
+ printf("\tsignature: %c%c%c%c\n",
+ (r.eax >> 24) & 0xff,
+ (r.eax >> 16) & 0xff,
+ (r.eax >> 8) & 0xff,
+ (r.eax) & 0xff);
+ printf("\tcommand port = 0x%.4x\n",
+ r.ebx & 0xffff);
+ printf("\tcommand = 0x%.4x\n",
+ (r.ebx >> 16) & 0xffff);
+ printf("\tevent port = 0x%.8x\n", r.ecx);
+ printf("\tflags = 0x%.8x\n", r.edx);
+ if (((r.ebx >> 16) & 0xffff) != 0x82) {
+ printf("non-default command value. If speedstep-smi "
+ "doesn't work out of the box,\nyou may want to "
+ "try out the default value by passing "
+ "smi_cmd=0x82 to the module\n ON YOUR OWN "
+ "RISK.\n");
+ }
+ if ((r.ebx & 0xffff) != 0xb2) {
+ printf("non-default command port. If speedstep-smi "
+ "doesn't work out of the box,\nyou may want to "
+ "try out the default value by passing "
+ "smi_port=0x82 to the module\n ON YOUR OWN "
+ "RISK.\n");
+ }
+ } else {
+ printf("BIOS DOES NOT support GSIC call. Dumping registers anyway:\n");
+ printf("eax = 0x%.8x\n", r.eax);
+ printf("ebx = 0x%.8x\n", r.ebx);
+ printf("ecx = 0x%.8x\n", r.ecx);
+ printf("edx = 0x%.8x\n", r.edx);
+ printf("Note also that some BIOS do not support the initial "
+ "GSIC call, but the newer\nspeeedstep-smi driver may "
+ "work.\nFor this, you need to pass some arguments to "
+ "the speedstep-smi driver:\n");
+ printf("\tsmi_cmd=0x?? smi_port=0x?? smi_sig=1\n");
+ printf("\nUnfortunately, you have to know what exactly are "
+ "smi_cmd and smi_port, and this\nis system "
+ "dependant.\n");
+ }
+ return 1;
+}
--- /dev/null
+/*
+ * (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ *
+ * Based on code found in
+ * linux/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+ * and originally developed by Paul Devriendt
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#define MCPU 32
+
+#define MSR_FIDVID_STATUS 0xc0010042
+
+#define MSR_S_HI_CURRENT_VID 0x0000001f
+#define MSR_S_LO_CURRENT_FID 0x0000003f
+
+static int get_fidvid(uint32_t cpu, uint32_t *fid, uint32_t *vid)
+{
+ int err = 1;
+ uint64_t msr = 0;
+ int fd;
+ char file[20];
+
+ if (cpu > MCPU)
+ goto out;
+
+ sprintf(file, "/dev/cpu/%d/msr", cpu);
+
+ fd = open(file, O_RDONLY);
+ if (fd < 0)
+ goto out;
+ lseek(fd, MSR_FIDVID_STATUS, SEEK_CUR);
+ if (read(fd, &msr, 8) != 8)
+ goto err1;
+
+ *fid = ((uint32_t )(msr & 0xffffffffull)) & MSR_S_LO_CURRENT_FID;
+ *vid = ((uint32_t )(msr>>32 & 0xffffffffull)) & MSR_S_HI_CURRENT_VID;
+ err = 0;
+err1:
+ close(fd);
+out:
+ return err;
+}
+
+
+/* Return a frequency in MHz, given an input fid */
+static uint32_t find_freq_from_fid(uint32_t fid)
+{
+ return 800 + (fid * 100);
+}
+
+/* Return a voltage in miliVolts, given an input vid */
+static uint32_t find_millivolts_from_vid(uint32_t vid)
+{
+ return 1550-vid*25;
+}
+
+int main (int argc, char *argv[])
+{
+ int err;
+ int cpu;
+ uint32_t fid, vid;
+
+ if (argc < 2)
+ cpu = 0;
+ else
+ cpu = strtoul(argv[1], NULL, 0);
+
+ err = get_fidvid(cpu, &fid, &vid);
+
+ if (err) {
+ printf("can't get fid, vid from MSR\n");
+ printf("Possible trouble: you don't run a powernow-k8 capable cpu\n");
+ printf("or you are not root, or the msr driver is not present\n");
+ exit(1);
+ }
+
+
+ printf("cpu %d currently at %d MHz and %d mV\n",
+ cpu,
+ find_freq_from_fid(fid),
+ find_millivolts_from_vid(vid));
+
+ return 0;
+}
--- /dev/null
+obj-m :=
+
+KDIR := /lib/modules/$(shell uname -r)/build
+PWD := $(shell pwd)
+KMISC := /lib/modules/$(shell uname -r)/cpufrequtils/
+
+ifeq ("$(CONFIG_X86_TSC)", "y")
+ obj-m += cpufreq-test_tsc.o
+endif
+
+default:
+ $(MAKE) -C $(KDIR) M=$(PWD)
+
+clean:
+ - rm -rf *.o *.ko .tmp-versions .*.cmd .*.mod.* *.mod.c
+ - rm -rf .tmp_versions* Module.symvers modules.order
+
+install: default
+ install -d $(KMISC)
+ install -m 644 -c *.ko $(KMISC)
+ /sbin/depmod -a
+
+all: default
--- /dev/null
+/*
+ * test module to check whether the TSC-based delay routine continues
+ * to work properly after cpufreq transitions. Needs ACPI to work
+ * properly.
+ *
+ * Based partly on the Power Management Timer (PMTMR) code to be found
+ * in arch/i386/kernel/timers/timer_pm.c on recent 2.6. kernels, especially
+ * code written by John Stultz. The read_pmtmr function was copied verbatim
+ * from that file.
+ *
+ * (C) 2004 Dominik Brodowski
+ *
+ * To use:
+ * 1.) pass clock=tsc to the kernel on your bootloader
+ * 2.) modprobe this module (it'll fail)
+ * 3.) change CPU frequency
+ * 4.) modprobe this module again
+ * 5.) if the third value, "diff_pmtmr", changes between 2. and 4., the
+ * TSC-based delay routine on the Linux kernel does not correctly
+ * handle the cpufreq transition. Please report this to
+ * cpufreq@vger.kernel.org
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+
+#include <asm/io.h>
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+
+static int pm_tmr_ioport = 0;
+
+/*helper function to safely read acpi pm timesource*/
+static u32 read_pmtmr(void)
+{
+ u32 v1=0,v2=0,v3=0;
+ /* It has been reported that because of various broken
+ * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM time
+ * source is not latched, so you must read it multiple
+ * times to insure a safe value is read.
+ */
+ do {
+ v1 = inl(pm_tmr_ioport);
+ v2 = inl(pm_tmr_ioport);
+ v3 = inl(pm_tmr_ioport);
+ } while ((v1 > v2 && v1 < v3) || (v2 > v3 && v2 < v1)
+ || (v3 > v1 && v3 < v2));
+
+ /* mask the output to 24 bits */
+ return (v2 & 0xFFFFFF);
+}
+
+static int __init cpufreq_test_tsc(void)
+{
+ u32 now, then, diff;
+ u64 now_tsc, then_tsc, diff_tsc;
+ int i;
+
+ /* the following code snipped is copied from arch/x86/kernel/acpi/boot.c
+ of Linux v2.6.25. */
+
+ /* detect the location of the ACPI PM Timer */
+ if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) {
+ /* FADT rev. 2 */
+ if (acpi_gbl_FADT.xpm_timer_block.space_id !=
+ ACPI_ADR_SPACE_SYSTEM_IO)
+ return 0;
+
+ pm_tmr_ioport = acpi_gbl_FADT.xpm_timer_block.address;
+ /*
+ * "X" fields are optional extensions to the original V1.0
+ * fields, so we must selectively expand V1.0 fields if the
+ * corresponding X field is zero.
+ */
+ if (!pm_tmr_ioport)
+ pm_tmr_ioport = acpi_gbl_FADT.pm_timer_block;
+ } else {
+ /* FADT rev. 1 */
+ pm_tmr_ioport = acpi_gbl_FADT.pm_timer_block;
+ }
+
+ printk(KERN_DEBUG "start--> \n");
+ then = read_pmtmr();
+ rdtscll(then_tsc);
+ for (i=0;i<20;i++) {
+ mdelay(100);
+ now = read_pmtmr();
+ rdtscll(now_tsc);
+ diff = (now - then) & 0xFFFFFF;
+ diff_tsc = now_tsc - then_tsc;
+ printk(KERN_DEBUG "t1: %08u t2: %08u diff_pmtmr: %08u diff_tsc: %016llu\n", then, now, diff, diff_tsc);
+ then = now;
+ then_tsc = now_tsc;
+ }
+ printk(KERN_DEBUG "<-- end \n");
+ return -ENODEV;
+}
+
+static void __exit cpufreq_none(void)
+{
+ return;
+}
+
+module_init(cpufreq_test_tsc)
+module_exit(cpufreq_none)
+
+
+MODULE_AUTHOR("Dominik Brodowski");
+MODULE_DESCRIPTION("Verify the TSC cpufreq notifier working correctly -- needs ACPI-enabled system");
+MODULE_LICENSE ("GPL");
--- /dev/null
+default: all
+
+centrino-decode: centrino-decode.c
+ $(CC) $(CFLAGS) -o centrino-decode centrino-decode.c
+
+powernow-k8-decode: powernow-k8-decode.c
+ $(CC) $(CFLAGS) -o powernow-k8-decode powernow-k8-decode.c
+
+all: centrino-decode powernow-k8-decode
+
+clean:
+ rm -rf centrino-decode powernow-k8-decode
+
+.PHONY: all default clean
--- /dev/null
+../i386/centrino-decode.c
\ No newline at end of file
--- /dev/null
+../i386/powernow-k8-decode.c
\ No newline at end of file
--- /dev/null
+/*
+ * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ */
+
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "cpufreq.h"
+#include "interfaces.h"
+
+int cpufreq_cpu_exists(unsigned int cpu)
+{
+ int ret = sysfs_cpu_exists(cpu);
+ if (ret == -ENOSYS)
+ ret = proc_cpu_exists(cpu);
+ return (ret);
+}
+
+unsigned long cpufreq_get_freq_kernel(unsigned int cpu)
+{
+ unsigned long ret = sysfs_get_freq_kernel(cpu);
+ if (!ret)
+ ret = proc_get_freq_kernel(cpu);
+ return (ret);
+}
+
+unsigned long cpufreq_get_freq_hardware(unsigned int cpu)
+{
+ unsigned long ret = sysfs_get_freq_hardware(cpu);
+ if (!ret)
+ ret = proc_get_freq_hardware(cpu);
+ return (ret);
+}
+
+unsigned long cpufreq_get_transition_latency(unsigned int cpu)
+{
+ unsigned long ret = sysfs_get_transition_latency(cpu);
+ if (!ret)
+ ret = proc_get_transition_latency(cpu);
+ return (ret);
+}
+
+int cpufreq_get_hardware_limits(unsigned int cpu,
+ unsigned long *min,
+ unsigned long *max)
+{
+ int ret;
+ if ((!min) || (!max))
+ return -EINVAL;
+ ret = sysfs_get_hardware_limits(cpu, min, max);
+ if (ret)
+ ret = proc_get_hardware_limits(cpu, min, max);
+ return (ret);
+}
+
+char * cpufreq_get_driver(unsigned int cpu) {
+ char * ret;
+ ret = sysfs_get_driver(cpu);
+ if (!ret) {
+ ret = proc_get_driver(cpu);
+ }
+ return (ret);
+}
+
+void cpufreq_put_driver(char * ptr) {
+ if (!ptr)
+ return;
+ free(ptr);
+}
+
+struct cpufreq_policy * cpufreq_get_policy(unsigned int cpu) {
+ struct cpufreq_policy * ret;
+ ret = sysfs_get_policy(cpu);
+ if (!ret)
+ ret = proc_get_policy(cpu);
+ return (ret);
+}
+
+void cpufreq_put_policy(struct cpufreq_policy *policy) {
+ if ((!policy) || (!policy->governor))
+ return;
+
+ free(policy->governor);
+ policy->governor = NULL;
+ free(policy);
+}
+
+struct cpufreq_available_governors * cpufreq_get_available_governors(unsigned int cpu) {
+ struct cpufreq_available_governors *ret;
+ ret = sysfs_get_available_governors(cpu);
+ if (!ret)
+ ret = proc_get_available_governors(cpu);
+ return (ret);
+}
+
+void cpufreq_put_available_governors(struct cpufreq_available_governors *any) {
+ struct cpufreq_available_governors *tmp, *next;
+
+ if (!any)
+ return;
+
+ tmp = any->first;
+ while (tmp) {
+ next = tmp->next;
+ if (tmp->governor)
+ free(tmp->governor);
+ free(tmp);
+ tmp = next;
+ }
+}
+
+
+struct cpufreq_available_frequencies * cpufreq_get_available_frequencies(unsigned int cpu) {
+ struct cpufreq_available_frequencies * ret;
+ ret = sysfs_get_available_frequencies(cpu);
+ if (!ret)
+ ret = proc_get_available_frequencies(cpu);
+ return (ret);
+}
+
+void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies *any) {
+ struct cpufreq_available_frequencies *tmp, *next;
+
+ if (!any)
+ return;
+
+ tmp = any->first;
+ while (tmp) {
+ next = tmp->next;
+ free(tmp);
+ tmp = next;
+ }
+}
+
+
+struct cpufreq_affected_cpus * cpufreq_get_affected_cpus(unsigned int cpu) {
+ struct cpufreq_affected_cpus * ret;
+ ret = sysfs_get_affected_cpus(cpu);
+ if (!ret)
+ ret = proc_get_affected_cpus(cpu);
+ return (ret);
+}
+
+void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *any) {
+ struct cpufreq_affected_cpus *tmp, *next;
+
+ if (!any)
+ return;
+
+ tmp = any->first;
+ while (tmp) {
+ next = tmp->next;
+ free(tmp);
+ tmp = next;
+ }
+}
+
+
+struct cpufreq_affected_cpus * cpufreq_get_related_cpus(unsigned int cpu) {
+ struct cpufreq_affected_cpus * ret;
+ ret = sysfs_get_related_cpus(cpu);
+ if (!ret)
+ ret = proc_get_related_cpus(cpu);
+ return (ret);
+}
+
+void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *any) {
+ cpufreq_put_affected_cpus(any);
+}
+
+
+int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy) {
+ int ret;
+ if (!policy || !(policy->governor))
+ return -EINVAL;
+
+ ret = sysfs_set_policy(cpu, policy);
+ if (ret)
+ ret = proc_set_policy(cpu, policy);
+ return (ret);
+}
+
+
+int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq) {
+ int ret;
+
+ ret = sysfs_modify_policy_min(cpu, min_freq);
+ if (ret)
+ ret = proc_modify_policy_min(cpu, min_freq);
+ return (ret);
+}
+
+
+int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq) {
+ int ret;
+
+ ret = sysfs_modify_policy_max(cpu, max_freq);
+ if (ret)
+ ret = proc_modify_policy_max(cpu, max_freq);
+ return (ret);
+}
+
+
+int cpufreq_modify_policy_governor(unsigned int cpu, char *governor) {
+ int ret;
+
+ if ((!governor) || (strlen(governor) > 19))
+ return -EINVAL;
+
+ ret = sysfs_modify_policy_governor(cpu, governor);
+ if (ret)
+ ret = proc_modify_policy_governor(cpu, governor);
+ return (ret);
+}
+
+int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency) {
+ int ret;
+
+ ret = sysfs_set_frequency(cpu, target_frequency);
+ if (ret)
+ ret = proc_set_frequency(cpu, target_frequency);
+ return (ret);
+}
+
+struct cpufreq_stats * cpufreq_get_stats(unsigned int cpu, unsigned long long *total_time) {
+ struct cpufreq_stats *ret;
+
+ ret = sysfs_get_stats(cpu, total_time);
+ return (ret);
+}
+
+void cpufreq_put_stats(struct cpufreq_stats *any) {
+ struct cpufreq_stats *tmp, *next;
+
+ if (!any)
+ return;
+
+ tmp = any->first;
+ while (tmp) {
+ next = tmp->next;
+ free(tmp);
+ tmp = next;
+ }
+}
+
+unsigned long cpufreq_get_transitions(unsigned int cpu) {
+ unsigned long ret = sysfs_get_transitions(cpu);
+
+ return (ret);
+}
--- /dev/null
+/*
+ * cpufreq.h - definitions for libcpufreq
+ *
+ * Copyright (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef _CPUFREQ_H
+#define _CPUFREQ_H 1
+
+struct cpufreq_policy {
+ unsigned long min;
+ unsigned long max;
+ char *governor;
+};
+
+struct cpufreq_available_governors {
+ char *governor;
+ struct cpufreq_available_governors *next;
+ struct cpufreq_available_governors *first;
+};
+
+struct cpufreq_available_frequencies {
+ unsigned long frequency;
+ struct cpufreq_available_frequencies *next;
+ struct cpufreq_available_frequencies *first;
+};
+
+
+struct cpufreq_affected_cpus {
+ unsigned int cpu;
+ struct cpufreq_affected_cpus *next;
+ struct cpufreq_affected_cpus *first;
+};
+
+struct cpufreq_stats {
+ unsigned long frequency;
+ unsigned long long time_in_state;
+ struct cpufreq_stats *next;
+ struct cpufreq_stats *first;
+};
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * returns 0 if the specified CPU is present (it doesn't say
+ * whether it is online!), and an error value if not.
+ */
+
+extern int cpufreq_cpu_exists(unsigned int cpu);
+
+/* determine current CPU frequency
+ * - _kernel variant means kernel's opinion of CPU frequency
+ * - _hardware variant means actual hardware CPU frequency,
+ * which is only available to root.
+ *
+ * returns 0 on failure, else frequency in kHz.
+ */
+
+extern unsigned long cpufreq_get_freq_kernel(unsigned int cpu);
+
+extern unsigned long cpufreq_get_freq_hardware(unsigned int cpu);
+
+#define cpufreq_get(cpu) cpufreq_get_freq_kernel(cpu);
+
+
+/* determine CPU transition latency
+ *
+ * returns 0 on failure, else transition latency in 10^(-9) s = nanoseconds
+ */
+extern unsigned long cpufreq_get_transition_latency(unsigned int cpu);
+
+
+/* determine hardware CPU frequency limits
+ *
+ * These may be limited further by thermal, energy or other
+ * considerations by cpufreq policy notifiers in the kernel.
+ */
+
+extern int cpufreq_get_hardware_limits(unsigned int cpu,
+ unsigned long *min,
+ unsigned long *max);
+
+
+/* determine CPUfreq driver used
+ *
+ * Remember to call cpufreq_put_driver when no longer needed
+ * to avoid memory leakage, please.
+ */
+
+extern char * cpufreq_get_driver(unsigned int cpu);
+
+extern void cpufreq_put_driver(char * ptr);
+
+
+/* determine CPUfreq policy currently used
+ *
+ * Remember to call cpufreq_put_policy when no longer needed
+ * to avoid memory leakage, please.
+ */
+
+
+extern struct cpufreq_policy * cpufreq_get_policy(unsigned int cpu);
+
+extern void cpufreq_put_policy(struct cpufreq_policy *policy);
+
+
+/* determine CPUfreq governors currently available
+ *
+ * may be modified by modprobe'ing or rmmod'ing other governors. Please
+ * free allocated memory by calling cpufreq_put_available_governors
+ * after use.
+ */
+
+
+extern struct cpufreq_available_governors * cpufreq_get_available_governors(unsigned int cpu);
+
+extern void cpufreq_put_available_governors(struct cpufreq_available_governors *first);
+
+
+/* determine CPU frequency states available
+ *
+ * only present on _some_ ->target() cpufreq drivers. For information purposes
+ * only. Please free allocated memory by calling cpufreq_put_available_frequencies
+ * after use.
+ */
+
+extern struct cpufreq_available_frequencies * cpufreq_get_available_frequencies(unsigned int cpu);
+
+extern void cpufreq_put_available_frequencies(struct cpufreq_available_frequencies *first);
+
+
+/* determine affected CPUs
+ *
+ * Remember to call cpufreq_put_affected_cpus when no longer needed
+ * to avoid memory leakage, please.
+ */
+
+extern struct cpufreq_affected_cpus * cpufreq_get_affected_cpus(unsigned int cpu);
+
+extern void cpufreq_put_affected_cpus(struct cpufreq_affected_cpus *first);
+
+
+/* determine related CPUs
+ *
+ * Remember to call cpufreq_put_related_cpus when no longer needed
+ * to avoid memory leakage, please.
+ */
+
+extern struct cpufreq_affected_cpus * cpufreq_get_related_cpus(unsigned int cpu);
+
+extern void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *first);
+
+
+/* determine stats for cpufreq subsystem
+ *
+ * This is not available in all kernel versions or configurations.
+ */
+
+extern struct cpufreq_stats * cpufreq_get_stats(unsigned int cpu, unsigned long long *total_time);
+
+extern void cpufreq_put_stats(struct cpufreq_stats *stats);
+
+extern unsigned long cpufreq_get_transitions(unsigned int cpu);
+
+
+/* set new cpufreq policy
+ *
+ * Tries to set the passed policy as new policy as close as possible,
+ * but results may differ depending e.g. on governors being available.
+ */
+
+extern int cpufreq_set_policy(unsigned int cpu, struct cpufreq_policy *policy);
+
+
+/* modify a policy by only changing min/max freq or governor
+ *
+ * Does not check whether result is what was intended.
+ */
+
+extern int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq);
+extern int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq);
+extern int cpufreq_modify_policy_governor(unsigned int cpu, char *governor);
+
+
+/* set a specific frequency
+ *
+ * Does only work if userspace governor can be used and no external
+ * interference (other calls to this function or to set/modify_policy)
+ * occurs. Also does not work on ->range() cpufreq drivers.
+ */
+
+extern int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _CPUFREQ_H */
--- /dev/null
+#ifdef INTERFACE_SYSFS
+
+extern unsigned int sysfs_cpu_exists(unsigned int cpu);
+extern unsigned long sysfs_get_freq_kernel(unsigned int cpu);
+extern unsigned long sysfs_get_freq_hardware(unsigned int cpu);
+extern unsigned long sysfs_get_transition_latency(unsigned int cpu);
+extern int sysfs_get_hardware_limits(unsigned int cpu, unsigned long *min, unsigned long *max);
+extern char * sysfs_get_driver(unsigned int cpu);
+extern struct cpufreq_policy * sysfs_get_policy(unsigned int cpu);
+extern struct cpufreq_available_governors * sysfs_get_available_governors(unsigned int cpu);
+extern struct cpufreq_available_frequencies * sysfs_get_available_frequencies(unsigned int cpu);
+extern struct cpufreq_affected_cpus * sysfs_get_affected_cpus(unsigned int cpu);
+extern struct cpufreq_affected_cpus * sysfs_get_related_cpus(unsigned int cpu);
+extern struct cpufreq_stats * sysfs_get_stats(unsigned int cpu, unsigned long long *total_time);
+extern unsigned long sysfs_get_transitions(unsigned int cpu);
+extern int sysfs_set_policy(unsigned int cpu, struct cpufreq_policy *policy);
+extern int sysfs_modify_policy_min(unsigned int cpu, unsigned long min_freq);
+extern int sysfs_modify_policy_max(unsigned int cpu, unsigned long max_freq);
+extern int sysfs_modify_policy_governor(unsigned int cpu, char *governor);
+extern int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency);
+
+#else
+
+static inline unsigned int sysfs_cpu_exists(unsigned int cpu) { return -ENOSYS; }
+static inline unsigned long sysfs_get_freq_kernel(unsigned int cpu) { return 0; }
+static inline unsigned long sysfs_get_freq_hardware(unsigned int cpu) { return 0; }
+static inline unsigned long sysfs_get_transition_latency(unsigned int cpu) { return 0; }
+static inline int sysfs_get_hardware_limits(unsigned int cpu, unsigned long *min, unsigned long *max) { return -ENOSYS; }
+static inline char * sysfs_get_driver(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_policy * sysfs_get_policy(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_available_governors * sysfs_get_available_governors(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_available_frequencies * sysfs_get_available_frequencies(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_affected_cpus * sysfs_get_affected_cpus(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_related_cpus * sysfs_get_affected_cpus(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_stats * sysfs_get_stats(unsigned int cpu, unsigned long long *total_time) { return NULL; }
+static inline unsigned long sysfs_get_transitions(unsigned int cpu) { return 0; }
+static inline int sysfs_set_policy(unsigned int cpu, struct cpufreq_policy *policy) { return -ENOSYS; }
+static inline int sysfs_modify_policy_min(unsigned int cpu, unsigned long min_freq) { return -ENOSYS; }
+static inline int sysfs_modify_policy_max(unsigned int cpu, unsigned long max_freq) { return -ENOSYS; }
+static inline int sysfs_modify_policy_governor(unsigned int cpu, char *governor) { return -ENOSYS; }
+static inline int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency) { return -ENOSYS; }
+
+#endif
+
+
+#ifdef INTERFACE_PROC
+
+extern int proc_cpu_exists(unsigned int cpu);
+extern unsigned long proc_get_freq_kernel(unsigned int cpu);
+extern struct cpufreq_policy * proc_get_policy(unsigned int cpu);
+extern int proc_set_policy(unsigned int cpu, struct cpufreq_policy *policy);
+extern int proc_set_frequency(unsigned int cpu, unsigned long target_frequency);
+#else
+
+static inline int proc_cpu_exists(unsigned int cpu) {return -ENOSYS; }
+static inline unsigned long proc_get_freq_kernel(unsigned int cpu) { return 0; }
+static inline struct cpufreq_policy * proc_get_policy(unsigned int cpu) { return NULL; }
+static inline int proc_set_policy(unsigned int cpu, struct cpufreq_policy *policy) { return -ENOSYS; }
+static inline int proc_set_frequency(unsigned int cpu, unsigned long target_frequency) { return -ENOSYS; }
+
+#endif
+
+/* these aren't implemented in /proc, and probably never will...*/
+
+static inline unsigned long proc_get_freq_hardware(unsigned int cpu) { return 0; }
+static inline unsigned long proc_get_transition_latency(unsigned int cpu) { return -ENOSYS; }
+static inline int proc_get_hardware_limits(unsigned int cpu, unsigned long *min, unsigned long *max) { return -ENOSYS; }
+static inline char * proc_get_driver(unsigned int cpu) {return NULL; }
+static inline struct cpufreq_available_governors * proc_get_available_governors(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_available_frequencies * proc_get_available_frequencies(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_affected_cpus * proc_get_affected_cpus(unsigned int cpu) { return NULL; }
+static inline struct cpufreq_affected_cpus * proc_get_related_cpus(unsigned int cpu) { return NULL; }
+static inline int proc_modify_policy_min(unsigned int cpu, unsigned long min_freq) { return -ENOSYS; }
+static inline int proc_modify_policy_max(unsigned int cpu, unsigned long max_freq) { return -ENOSYS; }
+static inline int proc_modify_policy_governor(unsigned int cpu, char *governor) { return -ENOSYS; }
+
--- /dev/null
+/*
+ * (C) 2004 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "cpufreq.h"
+
+#define MAX_LINE_LEN 255
+
+static int readout_proc_cpufreq(unsigned int cpu, unsigned long *min, unsigned long *max, char **governor)
+{
+ FILE *fp;
+ char value[MAX_LINE_LEN];
+ char gov_value[MAX_LINE_LEN];
+ int ret = -ENODEV;
+ unsigned int cpu_read;
+ unsigned int tmp1, tmp2;
+
+ if ((!min) || (!max) || (!governor))
+ return -EINVAL;
+
+ fp = fopen("/proc/cpufreq","r");
+ if (!fp)
+ return -ENODEV;
+
+
+ if (!fgets(value, MAX_LINE_LEN, fp)) {
+ ret = -EIO;
+ goto error;
+ }
+
+ if (strlen(value) > (MAX_LINE_LEN - 10)) {
+ ret = -EIO;
+ goto error;
+ }
+
+ while(!feof(fp)) {
+ if (!fgets(value, MAX_LINE_LEN, fp)) {
+ ret = -EIO;
+ goto error;
+ }
+
+ if (strlen(value) > (MAX_LINE_LEN - 10)) {
+ ret = -EIO;
+ goto error;
+ }
+
+ ret = sscanf(value, "CPU%3d %9lu kHz (%3d %%) - %9lu kHz (%3d %%) - %s",
+ &cpu_read , min, &tmp1, max, &tmp2, gov_value);
+ if (ret != 6) {
+ ret = -EIO;
+ goto error;
+ }
+
+ if (cpu_read != cpu)
+ continue;
+
+ if ((tmp2 < tmp1) || (tmp2 > 100) || (*max < *min)) {
+ ret = -ENOSYS;
+ goto error;
+ }
+
+ tmp1 = strlen(gov_value);
+ if (tmp1 > 20) {
+ ret = -ENOSYS;
+ goto error;
+ }
+
+ *governor = malloc(sizeof(char) * (tmp1 + 2));
+ if (!*governor) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
+ strncpy(*governor, gov_value, tmp1);
+ (*governor)[tmp1] = '\0';
+
+ ret = 0;
+
+ break;
+ }
+
+ error:
+ fclose(fp);
+ return (ret);
+}
+
+int proc_cpu_exists(unsigned int cpu) {
+ unsigned long tmp1, tmp2;
+ char *tmp3;
+ int ret;
+
+ ret = readout_proc_cpufreq(cpu, &tmp1, &tmp2, &tmp3);
+ if (ret)
+ return -ENODEV;
+
+ free(tmp3);
+ return 0;
+}
+
+struct cpufreq_policy * proc_get_policy(unsigned int cpu) {
+ struct cpufreq_policy tmp;
+ struct cpufreq_policy *ret;
+ int err;
+
+ err = readout_proc_cpufreq(cpu, &tmp.min, &tmp.max, &tmp.governor);
+ if (err)
+ return NULL;
+
+ ret = malloc(sizeof(struct cpufreq_policy));
+ if (!ret)
+ return NULL;
+
+ ret->min = tmp.min;
+ ret->max = tmp.max;
+ ret->governor = tmp.governor;
+
+ return (ret);
+}
+
+unsigned long proc_get_freq_kernel(unsigned int cpu) {
+ FILE *fp;
+ char value[MAX_LINE_LEN];
+ char file[MAX_LINE_LEN];
+ unsigned long value2;
+
+ snprintf(file, MAX_LINE_LEN, "/proc/sys/cpu/%u/speed", cpu);
+
+ fp = fopen(file,"r");
+ if (!fp)
+ return 0;
+
+ if (!fgets(value, MAX_LINE_LEN, fp)) {
+ fclose(fp);
+ return 0;
+ }
+
+ fclose(fp);
+
+ if (strlen(value) > (MAX_LINE_LEN - 10)) {
+ return 0;
+ }
+
+ if (sscanf(value, "%lu", &value2) != 1)
+ return 0;
+
+ return value2;
+}
+
+int proc_set_policy(unsigned int cpu, struct cpufreq_policy *policy) {
+ FILE *fp;
+ char value[MAX_LINE_LEN];
+ int ret = -ENODEV;
+
+ if ((!policy) || (!policy->governor) || (strlen(policy->governor) > 15))
+ return -EINVAL;
+
+ snprintf(value, MAX_LINE_LEN, "%d:%lu:%lu:%s", cpu, policy->min, policy->max, policy->governor);
+
+ value[MAX_LINE_LEN - 1]='\0';
+
+ fp = fopen("/proc/cpufreq","r+");
+ if (!fp)
+ return -ENODEV;
+ ret = fputs(value, fp);
+ fclose(fp);
+
+ if (ret < 0)
+ return (ret);
+
+ return 0;
+}
+
+int proc_set_frequency(unsigned int cpu, unsigned long target_frequency) {
+ struct cpufreq_policy *pol = proc_get_policy(cpu);
+ struct cpufreq_policy new_pol;
+ char userspace_gov[] = "userspace";
+ FILE *fp;
+ char value[MAX_LINE_LEN];
+ char file[MAX_LINE_LEN];
+ int ret = 0;
+
+ if (!pol)
+ return -ENODEV;
+
+ if (strncmp(pol->governor, userspace_gov, 9) != 0) {
+ cpufreq_put_policy(pol);
+ new_pol.min = pol->min;
+ new_pol.max = pol->max;
+ new_pol.governor = userspace_gov;
+ ret = proc_set_policy(cpu, &new_pol);
+ if (ret)
+ return (ret);
+ }
+
+
+ snprintf(file, MAX_LINE_LEN, "/proc/sys/cpu/%u/speed", cpu);
+ snprintf(value, MAX_LINE_LEN, "%lu", target_frequency);
+
+ fp = fopen(file,"r+");
+ if (!fp)
+ return -EINVAL;
+ ret = fputs(value, fp);
+ fclose(fp);
+
+ if (ret < 0)
+ return (ret);
+
+ return 0;
+}
--- /dev/null
+/*
+ * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <limits.h>
+#include <limits.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "cpufreq.h"
+
+#define PATH_TO_CPU "/sys/devices/system/cpu/"
+#define MAX_LINE_LEN 255
+#define SYSFS_PATH_MAX 255
+
+/* helper function to read file from /sys into given buffer */
+/* fname is a relative path under "cpuX/cpufreq" dir */
+unsigned int sysfs_read_file(unsigned int cpu, const char *fname, char *buf, size_t buflen)
+{
+ char path[SYSFS_PATH_MAX];
+ int fd;
+ size_t numread;
+
+ snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpufreq/%s",
+ cpu, fname);
+
+ if ( ( fd = open(path, O_RDONLY) ) == -1 )
+ return 0;
+
+ numread = read(fd, buf, buflen - 1);
+ if ( numread < 1 )
+ {
+ close(fd);
+ return 0;
+ }
+
+ buf[numread] = '\0';
+ close(fd);
+
+ return numread;
+}
+
+/* helper function to write a new value to a /sys file */
+/* fname is a relative path under "cpuX/cpufreq" dir */
+unsigned int sysfs_write_file(unsigned int cpu, const char *fname, const char *value, size_t len)
+{
+ char path[SYSFS_PATH_MAX];
+ int fd;
+ size_t numwrite;
+
+ snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpufreq/%s",
+ cpu, fname);
+
+ if ( ( fd = open(path, O_WRONLY) ) == -1 )
+ return 0;
+
+ numwrite = write(fd, value, len);
+ if ( numwrite < 1 )
+ {
+ close(fd);
+ return 0;
+ }
+
+ close(fd);
+
+ return numwrite;
+}
+
+/* read access to files which contain one numeric value */
+
+enum {
+ CPUINFO_CUR_FREQ,
+ CPUINFO_MIN_FREQ,
+ CPUINFO_MAX_FREQ,
+ CPUINFO_LATENCY,
+ SCALING_CUR_FREQ,
+ SCALING_MIN_FREQ,
+ SCALING_MAX_FREQ,
+ STATS_NUM_TRANSITIONS,
+ MAX_VALUE_FILES
+};
+
+static const char *value_files[MAX_VALUE_FILES] = {
+ [CPUINFO_CUR_FREQ] = "cpuinfo_cur_freq",
+ [CPUINFO_MIN_FREQ] = "cpuinfo_min_freq",
+ [CPUINFO_MAX_FREQ] = "cpuinfo_max_freq",
+ [CPUINFO_LATENCY] = "cpuinfo_transition_latency",
+ [SCALING_CUR_FREQ] = "scaling_cur_freq",
+ [SCALING_MIN_FREQ] = "scaling_min_freq",
+ [SCALING_MAX_FREQ] = "scaling_max_freq",
+ [STATS_NUM_TRANSITIONS] = "stats/total_trans"
+};
+
+
+static unsigned long sysfs_get_one_value(unsigned int cpu, unsigned int which)
+{
+ unsigned long value;
+ unsigned int len;
+ char linebuf[MAX_LINE_LEN];
+ char *endp;
+
+ if ( which >= MAX_VALUE_FILES )
+ return 0;
+
+ if ( ( len = sysfs_read_file(cpu, value_files[which], linebuf, sizeof(linebuf))) == 0 )
+ {
+ return 0;
+ }
+
+ value = strtoul(linebuf, &endp, 0);
+
+ if ( endp == linebuf || errno == ERANGE )
+ return 0;
+
+ return value;
+}
+
+/* read access to files which contain one string */
+
+enum {
+ SCALING_DRIVER,
+ SCALING_GOVERNOR,
+ MAX_STRING_FILES
+};
+
+static const char *string_files[MAX_STRING_FILES] = {
+ [SCALING_DRIVER] = "scaling_driver",
+ [SCALING_GOVERNOR] = "scaling_governor",
+};
+
+
+static char * sysfs_get_one_string(unsigned int cpu, unsigned int which)
+{
+ char linebuf[MAX_LINE_LEN];
+ char *result;
+ unsigned int len;
+
+ if (which >= MAX_STRING_FILES)
+ return NULL;
+
+ if ( ( len = sysfs_read_file(cpu, string_files[which], linebuf, sizeof(linebuf))) == 0 )
+ {
+ return NULL;
+ }
+
+ if ( ( result = strdup(linebuf) ) == NULL )
+ return NULL;
+
+ if (result[strlen(result) - 1] == '\n')
+ result[strlen(result) - 1] = '\0';
+
+ return result;
+}
+
+/* write access */
+
+enum {
+ WRITE_SCALING_MIN_FREQ,
+ WRITE_SCALING_MAX_FREQ,
+ WRITE_SCALING_GOVERNOR,
+ WRITE_SCALING_SET_SPEED,
+ MAX_WRITE_FILES
+};
+
+static const char *write_files[MAX_VALUE_FILES] = {
+ [WRITE_SCALING_MIN_FREQ] = "scaling_min_freq",
+ [WRITE_SCALING_MAX_FREQ] = "scaling_max_freq",
+ [WRITE_SCALING_GOVERNOR] = "scaling_governor",
+ [WRITE_SCALING_SET_SPEED] = "scaling_setspeed",
+};
+
+static int sysfs_write_one_value(unsigned int cpu, unsigned int which,
+ const char *new_value, size_t len)
+{
+ if (which >= MAX_WRITE_FILES)
+ return 0;
+
+ if ( sysfs_write_file(cpu, write_files[which], new_value, len) != len )
+ return -ENODEV;
+
+ return 0;
+};
+
+
+int sysfs_cpu_exists(unsigned int cpu)
+{
+ char file[SYSFS_PATH_MAX];
+ struct stat statbuf;
+
+ snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpu%u/", cpu);
+
+ if ( stat(file, &statbuf) != 0 )
+ return -ENOSYS;
+
+ return S_ISDIR(statbuf.st_mode) ? 0 : -ENOSYS;
+}
+
+
+unsigned long sysfs_get_freq_kernel(unsigned int cpu)
+{
+ return sysfs_get_one_value(cpu, SCALING_CUR_FREQ);
+}
+
+unsigned long sysfs_get_freq_hardware(unsigned int cpu)
+{
+ return sysfs_get_one_value(cpu, CPUINFO_CUR_FREQ);
+}
+
+unsigned long sysfs_get_transition_latency(unsigned int cpu)
+{
+ return sysfs_get_one_value(cpu, CPUINFO_LATENCY);
+}
+
+int sysfs_get_hardware_limits(unsigned int cpu,
+ unsigned long *min,
+ unsigned long *max)
+{
+ if ((!min) || (!max))
+ return -EINVAL;
+
+ *min = sysfs_get_one_value(cpu, CPUINFO_MIN_FREQ);
+ if (!*min)
+ return -ENODEV;
+
+ *max = sysfs_get_one_value(cpu, CPUINFO_MAX_FREQ);
+ if (!*max)
+ return -ENODEV;
+
+ return 0;
+}
+
+char * sysfs_get_driver(unsigned int cpu) {
+ return sysfs_get_one_string(cpu, SCALING_DRIVER);
+}
+
+struct cpufreq_policy * sysfs_get_policy(unsigned int cpu) {
+ struct cpufreq_policy *policy;
+
+ policy = malloc(sizeof(struct cpufreq_policy));
+ if (!policy)
+ return NULL;
+
+ policy->governor = sysfs_get_one_string(cpu, SCALING_GOVERNOR);
+ if (!policy->governor) {
+ free(policy);
+ return NULL;
+ }
+ policy->min = sysfs_get_one_value(cpu, SCALING_MIN_FREQ);
+ policy->max = sysfs_get_one_value(cpu, SCALING_MAX_FREQ);
+ if ((!policy->min) || (!policy->max)) {
+ free(policy->governor);
+ free(policy);
+ return NULL;
+ }
+
+ return policy;
+}
+
+struct cpufreq_available_governors * sysfs_get_available_governors(unsigned int cpu) {
+ struct cpufreq_available_governors *first = NULL;
+ struct cpufreq_available_governors *current = NULL;
+ char linebuf[MAX_LINE_LEN];
+ unsigned int pos, i;
+ unsigned int len;
+
+ if ( ( len = sysfs_read_file(cpu, "scaling_available_governors", linebuf, sizeof(linebuf))) == 0 )
+ {
+ return NULL;
+ }
+
+ pos = 0;
+ for ( i = 0; i < len; i++ )
+ {
+ if ( linebuf[i] == ' ' || linebuf[i] == '\n' )
+ {
+ if ( i - pos < 2 )
+ continue;
+ if ( current ) {
+ current->next = malloc(sizeof *current );
+ if ( ! current->next )
+ goto error_out;
+ current = current->next;
+ } else {
+ first = malloc( sizeof *first );
+ if ( ! first )
+ goto error_out;
+ current = first;
+ }
+ current->first = first;
+ current->next = NULL;
+
+ current->governor = malloc(i - pos + 1);
+ if ( ! current->governor )
+ goto error_out;
+
+ memcpy( current->governor, linebuf + pos, i - pos);
+ current->governor[i - pos] = '\0';
+ pos = i + 1;
+ }
+ }
+
+ return first;
+
+ error_out:
+ while ( first ) {
+ current = first->next;
+ if ( first->governor )
+ free( first->governor );
+ free( first );
+ first = current;
+ }
+ return NULL;
+}
+
+
+struct cpufreq_available_frequencies * sysfs_get_available_frequencies(unsigned int cpu) {
+ struct cpufreq_available_frequencies *first = NULL;
+ struct cpufreq_available_frequencies *current = NULL;
+ char one_value[SYSFS_PATH_MAX];
+ char linebuf[MAX_LINE_LEN];
+ unsigned int pos, i;
+ unsigned int len;
+
+ if ( ( len = sysfs_read_file(cpu, "scaling_available_frequencies", linebuf, sizeof(linebuf))) == 0 )
+ {
+ return NULL;
+ }
+
+ pos = 0;
+ for ( i = 0; i < len; i++ )
+ {
+ if ( linebuf[i] == ' ' || linebuf[i] == '\n' )
+ {
+ if ( i - pos < 2 )
+ continue;
+ if ( i - pos >= SYSFS_PATH_MAX )
+ goto error_out;
+ if ( current ) {
+ current->next = malloc(sizeof *current );
+ if ( ! current->next )
+ goto error_out;
+ current = current->next;
+ } else {
+ first = malloc(sizeof *first );
+ if ( ! first )
+ goto error_out;
+ current = first;
+ }
+ current->first = first;
+ current->next = NULL;
+
+ memcpy(one_value, linebuf + pos, i - pos);
+ one_value[i - pos] = '\0';
+ if ( sscanf(one_value, "%lu", ¤t->frequency) != 1 )
+ goto error_out;
+
+ pos = i + 1;
+ }
+ }
+
+ return first;
+
+ error_out:
+ while ( first ) {
+ current = first->next;
+ free(first);
+ first = current;
+ }
+ return NULL;
+}
+
+static struct cpufreq_affected_cpus * sysfs_get_cpu_list(unsigned int cpu,
+ const char *file) {
+ struct cpufreq_affected_cpus *first = NULL;
+ struct cpufreq_affected_cpus *current = NULL;
+ char one_value[SYSFS_PATH_MAX];
+ char linebuf[MAX_LINE_LEN];
+ unsigned int pos, i;
+ unsigned int len;
+
+ if ( ( len = sysfs_read_file(cpu, file, linebuf, sizeof(linebuf))) == 0 )
+ {
+ return NULL;
+ }
+
+ pos = 0;
+ for ( i = 0; i < len; i++ )
+ {
+ if ( i == len || linebuf[i] == ' ' || linebuf[i] == '\n' )
+ {
+ if ( i - pos < 1 )
+ continue;
+ if ( i - pos >= SYSFS_PATH_MAX )
+ goto error_out;
+ if ( current ) {
+ current->next = malloc(sizeof *current);
+ if ( ! current->next )
+ goto error_out;
+ current = current->next;
+ } else {
+ first = malloc(sizeof *first);
+ if ( ! first )
+ goto error_out;
+ current = first;
+ }
+ current->first = first;
+ current->next = NULL;
+
+ memcpy(one_value, linebuf + pos, i - pos);
+ one_value[i - pos] = '\0';
+
+ if ( sscanf(one_value, "%u", ¤t->cpu) != 1 )
+ goto error_out;
+
+ pos = i + 1;
+ }
+ }
+
+ return first;
+
+ error_out:
+ while (first) {
+ current = first->next;
+ free(first);
+ first = current;
+ }
+ return NULL;
+}
+
+struct cpufreq_affected_cpus * sysfs_get_affected_cpus(unsigned int cpu) {
+ return sysfs_get_cpu_list(cpu, "affected_cpus");
+}
+
+struct cpufreq_affected_cpus * sysfs_get_related_cpus(unsigned int cpu) {
+ return sysfs_get_cpu_list(cpu, "related_cpus");
+}
+
+struct cpufreq_stats * sysfs_get_stats(unsigned int cpu, unsigned long long *total_time) {
+ struct cpufreq_stats *first = NULL;
+ struct cpufreq_stats *current = NULL;
+ char one_value[SYSFS_PATH_MAX];
+ char linebuf[MAX_LINE_LEN];
+ unsigned int pos, i;
+ unsigned int len;
+
+ if ( ( len = sysfs_read_file(cpu, "stats/time_in_state", linebuf, sizeof(linebuf))) == 0 )
+ return NULL;
+
+ *total_time = 0;
+ pos = 0;
+ for ( i = 0; i < len; i++ )
+ {
+ if ( i == strlen(linebuf) || linebuf[i] == '\n' )
+ {
+ if ( i - pos < 2 )
+ continue;
+ if ( (i - pos) >= SYSFS_PATH_MAX )
+ goto error_out;
+ if ( current ) {
+ current->next = malloc(sizeof *current );
+ if ( ! current->next )
+ goto error_out;
+ current = current->next;
+ } else {
+ first = malloc(sizeof *first );
+ if ( ! first )
+ goto error_out;
+ current = first;
+ }
+ current->first = first;
+ current->next = NULL;
+
+ memcpy(one_value, linebuf + pos, i - pos);
+ one_value[i - pos] = '\0';
+ if ( sscanf(one_value, "%lu %llu", ¤t->frequency, ¤t->time_in_state) != 2 )
+ goto error_out;
+
+ *total_time = *total_time + current->time_in_state;
+ pos = i + 1;
+ }
+ }
+
+ return first;
+
+ error_out:
+ while ( first ) {
+ current = first->next;
+ free(first);
+ first = current;
+ }
+ return NULL;
+}
+
+unsigned long sysfs_get_transitions(unsigned int cpu)
+{
+ return sysfs_get_one_value(cpu, STATS_NUM_TRANSITIONS);
+}
+
+static int verify_gov(char *new_gov, char *passed_gov)
+{
+ unsigned int i, j=0;
+
+ if (!passed_gov || (strlen(passed_gov) > 19))
+ return -EINVAL;
+
+ strncpy(new_gov, passed_gov, 20);
+ for (i=0;i<20;i++) {
+ if (j) {
+ new_gov[i] = '\0';
+ continue;
+ }
+ if ((new_gov[i] >= 'a') && (new_gov[i] <= 'z')) {
+ continue;
+ }
+ if ((new_gov[i] >= 'A') && (new_gov[i] <= 'Z')) {
+ continue;
+ }
+ if (new_gov[i] == '-') {
+ continue;
+ }
+ if (new_gov[i] == '_') {
+ continue;
+ }
+ if (new_gov[i] == '\0') {
+ j = 1;
+ continue;
+ }
+ return -EINVAL;
+ }
+ new_gov[19] = '\0';
+ return 0;
+}
+
+int sysfs_modify_policy_governor(unsigned int cpu, char *governor)
+{
+ char new_gov[SYSFS_PATH_MAX];
+
+ if (!governor)
+ return -EINVAL;
+
+ if (verify_gov(new_gov, governor))
+ return -EINVAL;
+
+ return sysfs_write_one_value(cpu, WRITE_SCALING_GOVERNOR, new_gov, strlen(new_gov));
+};
+
+int sysfs_modify_policy_max(unsigned int cpu, unsigned long max_freq)
+{
+ char value[SYSFS_PATH_MAX];
+
+ snprintf(value, SYSFS_PATH_MAX, "%lu", max_freq);
+
+ return sysfs_write_one_value(cpu, WRITE_SCALING_MAX_FREQ, value, strlen(value));
+};
+
+
+int sysfs_modify_policy_min(unsigned int cpu, unsigned long min_freq)
+{
+ char value[SYSFS_PATH_MAX];
+
+ snprintf(value, SYSFS_PATH_MAX, "%lu", min_freq);
+
+ return sysfs_write_one_value(cpu, WRITE_SCALING_MIN_FREQ, value, strlen(value));
+};
+
+
+int sysfs_set_policy(unsigned int cpu, struct cpufreq_policy *policy)
+{
+ char min[SYSFS_PATH_MAX];
+ char max[SYSFS_PATH_MAX];
+ char gov[SYSFS_PATH_MAX];
+ int ret;
+ unsigned long old_min;
+ int write_max_first;
+
+ if (!policy || !(policy->governor))
+ return -EINVAL;
+
+ if (policy->max < policy->min)
+ return -EINVAL;
+
+ if (verify_gov(gov, policy->governor))
+ return -EINVAL;
+
+ snprintf(min, SYSFS_PATH_MAX, "%lu", policy->min);
+ snprintf(max, SYSFS_PATH_MAX, "%lu", policy->max);
+
+ old_min = sysfs_get_one_value(cpu, SCALING_MIN_FREQ);
+ write_max_first = (old_min && (policy->max < old_min) ? 0 : 1);
+
+ if (write_max_first) {
+ ret = sysfs_write_one_value(cpu, WRITE_SCALING_MAX_FREQ, max, strlen(max));
+ if (ret)
+ return ret;
+ }
+
+ ret = sysfs_write_one_value(cpu, WRITE_SCALING_MIN_FREQ, min, strlen(min));
+ if (ret)
+ return ret;
+
+ if (!write_max_first) {
+ ret = sysfs_write_one_value(cpu, WRITE_SCALING_MAX_FREQ, max, strlen(max));
+ if (ret)
+ return ret;
+ }
+
+ return sysfs_write_one_value(cpu, WRITE_SCALING_GOVERNOR, gov, strlen(gov));
+}
+
+int sysfs_set_frequency(unsigned int cpu, unsigned long target_frequency) {
+ struct cpufreq_policy *pol = sysfs_get_policy(cpu);
+ char userspace_gov[] = "userspace";
+ char freq[SYSFS_PATH_MAX];
+ int ret;
+
+ if (!pol)
+ return -ENODEV;
+
+ if (strncmp(pol->governor, userspace_gov, 9) != 0) {
+ ret = sysfs_modify_policy_governor(cpu, userspace_gov);
+ if (ret) {
+ cpufreq_put_policy(pol);
+ return (ret);
+ }
+ }
+
+ cpufreq_put_policy(pol);
+
+ snprintf(freq, SYSFS_PATH_MAX, "%lu", target_frequency);
+
+ return sysfs_write_one_value(cpu, WRITE_SCALING_SET_SPEED, freq, strlen(freq));
+}
--- /dev/null
+.TH "cpufreq-info" "1" "0.1" "Mattia Dongili" ""
+.SH "NAME"
+.LP
+cpufreq\-info \- Utility to retrieve cpufreq kernel information
+.SH "SYNTAX"
+.LP
+cpufreq\-info [\fIoptions\fP]
+.SH "DESCRIPTION"
+.LP
+A small tool which prints out cpufreq information helpful to developers and interested users.
+.SH "OPTIONS"
+.LP
+.TP
+\fB\-c\fR \fB\-\-cpu\fR <\fICPU\fP>
+ <\fICPU\fP> number which information shall be determined about.
+.TP
+\fB\-e\fR \fB\-\-debug\fR
+Prints out debug information.
+.TP
+\fB\-f\fR \fB\-\-freq\fR
+Get frequency the CPU currently runs at, according to the cpufreq core.
+.TP
+\fB\-w\fR \fB\-\-hwfreq\fR
+Get frequency the CPU currently runs at, by reading it from hardware (only available to root).
+.TP
+\fB\-l\fR \fB\-\-hwlimits\fR
+Determine the minimum and maximum CPU frequency allowed.
+.TP
+\fB\-d\fR \fB\-\-driver\fR
+Determines the used cpufreq kernel driver.
+.TP
+\fB\-p\fR \fB\-\-policy\fR
+Gets the currently used cpufreq policy.
+.TP
+\fB\-g\fR \fB\-\-governors\fR
+Determines available cpufreq governors.
+.TP
+\fB\-a\fR \fB\-\-related\-cpus\fR
+Determines which CPUs run at the same hardware frequency.
+.TP
+\fB\-a\fR \fB\-\-affected\-cpus\fR
+Determines which CPUs need to have their frequency coordinated by software.
+.TP
+\fB\-s\fR \fB\-\-stats\fR
+Shows cpufreq statistics if available.
+.TP
+\fB\-y\fR \fB\-\-latency\fR
+Determines the maximum latency on CPU frequency changes.
+.TP
+\fB\-o\fR \fB\-\-proc\fR
+Prints out information like provided by the /proc/cpufreq interface in 2.4. and early 2.6. kernels.
+.TP
+\fB\-m\fR \fB\-\-human\fR
+human\-readable output for the \-f, \-w, \-s and \-y parameters.
+.TP
+\fB\-h\fR \fB\-\-help\fR
+Prints out the help screen.
+.SH "REMARKS"
+.LP
+You can't specify more than one of the output specific options \-o \-e \-a \-g \-p \-d \-l \-w \-f \-y.
+.LP
+You also can't specify the \-o option combined with the \-c option.
+.SH "FILES"
+.nf
+\fI/sys/devices/system/cpu/cpu*/cpufreq/\fP
+\fI/proc/cpufreq\fP (deprecated)
+\fI/proc/sys/cpu/\fP (deprecated)
+.fi
+.SH "AUTHORS"
+.nf
+Dominik Brodowski <linux@brodo.de> \- author
+Mattia Dongili<malattia@gmail.com> \- first autolibtoolization
+.fi
+.SH "SEE ALSO"
+.LP
+cpufreq\-set(1)
--- /dev/null
+.TH "cpufreq-set" "1" "0.1" "Mattia Dongili" ""
+.SH "NAME"
+.LP
+cpufreq\-set \- A small tool which allows to modify cpufreq settings.
+.SH "SYNTAX"
+.LP
+cpufreq\-set [\fIoptions\fP]
+.SH "DESCRIPTION"
+.LP
+cpufreq\-set allows you to modify cpufreq settings without having to type e.g. "/sys/devices/system/cpu/cpu0/cpufreq/scaling_set_speed" all the time.
+.SH "OPTIONS"
+.LP
+.TP
+\fB\-c\fR \fB\-\-cpu\fR <CPU>
+number of CPU where cpufreq settings shall be modified.
+.TP
+\fB\-d\fR \fB\-\-min\fR <FREQ>
+new minimum CPU frequency the governor may select.
+.TP
+\fB\-u\fR \fB\-\-max\fR <FREQ>
+new maximum CPU frequency the governor may select.
+.TP
+\fB\-g\fR \fB\-\-governor\fR <GOV>
+new cpufreq governor.
+.TP
+\fB\-f\fR \fB\-\-freq\fR <FREQ>
+specific frequency to be set. Requires userspace governor to be available and loaded.
+.TP
+\fB\-r\fR \fB\-\-related\fR
+modify all hardware-related CPUs at the same time
+.TP
+\fB\-h\fR \fB\-\-help\fR
+Prints out the help screen.
+.SH "REMARKS"
+.LP
+Omitting the \-c or \-\-cpu argument is equivalent to setting it to zero.
+.LP
+The \-f FREQ, \-\-freq FREQ parameter cannot be combined with any other parameter except the \-c CPU, \-\-cpu CPU parameter.
+.LP
+FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz by postfixing the value with the wanted unit name, without any space (frequency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).
+.LP
+On Linux kernels up to 2.6.29, the \-r or \-\-related parameter is ignored.
+.SH "FILES"
+.nf
+\fI/sys/devices/system/cpu/cpu*/cpufreq/\fP
+\fI/proc/cpufreq\fP (deprecated)
+\fI/proc/sys/cpu/\fP (deprecated)
+.fi
+.SH "AUTHORS"
+.nf
+Dominik Brodowski <linux@brodo.de> \- author
+Mattia Dongili<malattia@gmail.com> \- first autolibtoolization
+.fi
+.SH "SEE ALSO"
+.LP
+cpufreq\-info(1)
--- /dev/null
+# translation of cs.po to Czech
+# Czech translation for cpufrequtils package
+# Czech messages for cpufrequtils.
+# Copyright (C) 2007 kavol
+# This file is distributed under the same license as the cpufrequtils package.
+#
+# Karel Volný <kavol@seznam.cz>, 2007, 2008.
+msgid ""
+msgstr ""
+"Project-Id-Version: cs\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2008-07-17 11:29+0200\n"
+"PO-Revision-Date: 2008-06-11 16:26+0200\n"
+"Last-Translator: Karel Volný <kavol@seznam.cz>\n"
+"Language-Team: Czech <diskuze@lists.l10n.cz>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
+"X-Generator: KBabel 1.11.4\n"
+
+#: utils/info.c:36
+#, c-format
+msgid "Couldn't count the number of CPUs (%s: %s), assuming 1\n"
+msgstr "Nelze zjistit počet CPU (%s: %s), předpokládá se 1.\n"
+
+#: utils/info.c:67
+#, c-format
+msgid ""
+" minimum CPU frequency - maximum CPU frequency - governor\n"
+msgstr ""
+" minimální frekvence CPU - maximální frekvence CPU - regulátor\n"
+
+#: utils/info.c:128
+#, c-format
+msgid "couldn't analyze CPU %d as it doesn't seem to be present\n"
+msgstr "nelze analyzovat CPU %d, vypadá to, že není přítomen\n"
+
+#: utils/info.c:132
+#, c-format
+msgid "analyzing CPU %d:\n"
+msgstr "analyzuji CPU %d:\n"
+
+#: utils/info.c:139
+#, c-format
+msgid " no or unknown cpufreq driver is active on this CPU\n"
+msgstr " pro tento CPU není aktivní žádný známý ovladač cpufreq\n"
+
+#: utils/info.c:141
+#, c-format
+msgid " driver: %s\n"
+msgstr " ovladač: %s\n"
+
+#: utils/info.c:147
+#, c-format
+msgid " CPUs which need to switch frequency at the same time: "
+msgstr " CPU, které musí měnit frekvenci zároveň: "
+
+#: utils/info.c:157
+#, c-format
+msgid " hardware limits: "
+msgstr " hardwarové meze: "
+
+#: utils/info.c:166
+#, c-format
+msgid " available frequency steps: "
+msgstr " dostupné frekvence: "
+
+#: utils/info.c:179
+#, c-format
+msgid " available cpufreq governors: "
+msgstr " dostupné regulátory: "
+
+#: utils/info.c:190
+#, c-format
+msgid " current policy: frequency should be within "
+msgstr " současná taktika: frekvence by měla být mezi "
+
+#: utils/info.c:192
+#, c-format
+msgid " and "
+msgstr " a "
+
+#: utils/info.c:196
+#, c-format
+msgid ""
+"The governor \"%s\" may decide which speed to use\n"
+" within this range.\n"
+msgstr ""
+" Regulátor \"%s\" může rozhodnout jakou frekvenci použít\n"
+" v těchto mezích.\n"
+
+#: utils/info.c:203
+#, c-format
+msgid " current CPU frequency is "
+msgstr " současná frekvence CPU je "
+
+#: utils/info.c:206
+#, c-format
+msgid " (asserted by call to hardware)"
+msgstr " (zjištěno hardwarovým voláním)"
+
+#: utils/info.c:214
+#, c-format
+msgid " cpufreq stats: "
+msgstr " statistika cpufreq: "
+
+#: utils/info.c:361 utils/set.c:30
+#, c-format
+msgid "Report errors and bugs to %s, please.\n"
+msgstr ""
+"Chyby v programu prosím hlaste na %s (anglicky).\n"
+"Chyby v překladu prosím hlaste na kavol@seznam.cz (česky ;-)\n"
+
+#: utils/info.c:365
+#, c-format
+msgid "Usage: cpufreq-info [options]\n"
+msgstr "Užití: cpufreq-info [přepínače]\n"
+
+#: utils/info.c:366 utils/set.c:35
+#, c-format
+msgid "Options:\n"
+msgstr "Přepínače:\n"
+
+#: utils/info.c:367
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU CPU number which information shall be determined "
+"about\n"
+msgstr " -c CPU, --cpu CPU Číslo CPU, o kterém se mají zjistit informace\n"
+
+#: utils/info.c:368
+#, c-format
+msgid " -e, --debug Prints out debug information\n"
+msgstr " -e, --debug Vypíše ladicí informace\n"
+
+#: utils/info.c:369
+#, c-format
+msgid ""
+" -f, --freq Get frequency the CPU currently runs at, according\n"
+" to the cpufreq core *\n"
+msgstr ""
+" -f, --freq Zjistí aktuální frekvenci, na které CPU běží\n"
+" podle cpufreq *\n"
+
+#: utils/info.c:371
+#, c-format
+msgid ""
+" -w, --hwfreq Get frequency the CPU currently runs at, by reading\n"
+" it from hardware (only available to root) *\n"
+msgstr ""
+" -w, --hwfreq Zjistí aktuální frekvenci, na které CPU běží\n"
+" z hardware (dostupné jen uživateli root) *\n"
+
+#: utils/info.c:373
+#, c-format
+msgid ""
+" -l, --hwlimits Determine the minimum and maximum CPU frequency "
+"allowed *\n"
+msgstr ""
+" -l, --hwlimits Zjistí minimální a maximální dostupnou frekvenci CPU "
+"*\n"
+
+#: utils/info.c:374
+#, c-format
+msgid " -d, --driver Determines the used cpufreq kernel driver *\n"
+msgstr " -d, --driver Zjistí aktivní ovladač cpufreq *\n"
+
+#: utils/info.c:375
+#, c-format
+msgid " -p, --policy Gets the currently used cpufreq policy *\n"
+msgstr " -p, --policy Zjistí aktuální taktiku cpufreq *\n"
+
+#: utils/info.c:376
+#, c-format
+msgid " -g, --governors Determines available cpufreq governors *\n"
+msgstr " -g, --governors Zjistí dostupné regulátory cpufreq *\n"
+
+#: utils/info.c:377
+#, c-format
+msgid ""
+" -a, --affected-cpus Determines which CPUs can only switch frequency at "
+"the\n"
+" same time *\n"
+msgstr ""
+" -a, --affected-cpus Zjistí, které CPU musí měnit frekvenci zároveň *\n"
+
+#: utils/info.c:379
+#, c-format
+msgid " -s, --stats Shows cpufreq statistics if available\n"
+msgstr " -s, --stats Zobrazí statistiku cpufreq, je-li dostupná\n"
+
+#: utils/info.c:380
+#, c-format
+msgid ""
+" -o, --proc Prints out information like provided by the /proc/"
+"cpufreq\n"
+" interface in 2.4. and early 2.6. kernels\n"
+msgstr ""
+" -o, --proc Vypíše informace ve formátu, jaký používalo rozhraní\n"
+" /proc/cpufreq v kernelech řady 2.4 a časné 2.6\n"
+
+#: utils/info.c:382
+#, c-format
+msgid ""
+" -m, --human human-readable output for the -f, -w and -s "
+"parameters\n"
+msgstr ""
+" -m, --human Výstup parametrů -f, -w a -s v „lidmi čitelném“ "
+"formátu\n"
+
+#: utils/info.c:383 utils/set.c:42
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Vypíše tuto nápovědu\n"
+
+#: utils/info.c:386
+#, c-format
+msgid ""
+"If no argument or only the -c, --cpu parameter is given, debug output about\n"
+"cpufreq is printed which is useful e.g. for reporting bugs.\n"
+msgstr ""
+"Není-li zadán žádný parametr nebo je-li zadán pouze přepínač -c, --cpu, "
+"jsou\n"
+"vypsány ladicí informace, což může být užitečné například při hlášení chyb.\n"
+
+#: utils/info.c:388
+#, c-format
+msgid ""
+"For the arguments marked with *, omitting the -c or --cpu argument is\n"
+"equivalent to setting it to zero\n"
+msgstr ""
+"Není-li při použití přepínačů označených * zadán parametr -c nebo --cpu,\n"
+"předpokládá se jeho hodnota 0.\n"
+
+#: utils/info.c:478
+#, c-format
+msgid ""
+"The argument passed to this tool can't be combined with passing a --cpu "
+"argument\n"
+msgstr "Zadaný parametr nemůže být použit zároveň s přepínačem -c nebo --cpu\n"
+
+#: utils/info.c:491
+#, c-format
+msgid ""
+"You can't specify more than one --cpu parameter and/or\n"
+"more than one output-specific argument\n"
+msgstr ""
+"Nelze zadat více než jeden parametr -c nebo --cpu\n"
+"anebo více než jeden parametr určující výstup\n"
+
+#: utils/info.c:497 utils/set.c:79
+#, c-format
+msgid "invalid or unknown argument\n"
+msgstr "neplatný nebo neznámý parametr\n"
+
+#: utils/set.c:34
+#, c-format
+msgid "Usage: cpufreq-set [options]\n"
+msgstr "Užití: cpufreq-set [přepínače]\n"
+
+#: utils/set.c:36
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU number of CPU where cpufreq settings shall be "
+"modified\n"
+msgstr ""
+" -c CPU, --cpu CPU Číslo CPU pro který se má provést nastavení "
+"cpufreq\n"
+
+#: utils/set.c:37
+#, c-format
+msgid ""
+" -d FREQ, --min FREQ new minimum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -d FREQ, --min FREQ Nová nejnižší frekvence, kterou může regulátor "
+"vybrat\n"
+
+#: utils/set.c:38
+#, c-format
+msgid ""
+" -u FREQ, --max FREQ new maximum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -u FREQ, --max FREQ Nová nejvyšší frekvence, kterou může regulátor "
+"zvolit\n"
+
+#: utils/set.c:39
+#, c-format
+msgid " -g GOV, --governor GOV new cpufreq governor\n"
+msgstr " -g GOV, --governors GOV Nový regulátor cpufreq\n"
+
+#: utils/set.c:40
+#, c-format
+msgid ""
+" -f FREQ, --freq FREQ specific frequency to be set. Requires userspace\n"
+" governor to be available and loaded\n"
+msgstr ""
+" -f FREQ, --freq FREQ Frekvence, která má být nastavena. Vyžaduje, aby "
+"byl\n"
+" v jádře nahrán regulátor ‚userspace‘.\n"
+
+#: utils/set.c:44
+#, c-format
+msgid ""
+"Notes:\n"
+"1. Omitting the -c or --cpu argument is equivalent to setting it to zero\n"
+"2. The -f FREQ, --freq FREQ parameter cannot be combined with any other "
+"parameter\n"
+" except the -c CPU, --cpu CPU parameter\n"
+"3. FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz\n"
+" by postfixing the value with the wanted unit name, without any space\n"
+" (FREQuency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+msgstr ""
+"Poznámky:\n"
+"1. Vynechání parametru -c nebo --cpu je ekvivalentní jeho nastavení na 0\n"
+"2. Přepínač -f nebo --freq nemůže být použit zároveň s žádným jiným vyjma -"
+"c\n"
+" nebo --cpu\n"
+"3. Frekvence (FREQ) mohou být zadány v Hz, kHz (výchozí), MHz, GHz nebo THz\n"
+" připojením názvu jednotky bez mezery mezi číslem a jednotkou\n"
+" (FREQ v kHz =^ Hz * 0,001 = ^ MHz * 1000 =^ GHz * 1000000)\n"
+
+#: utils/set.c:251
+#, c-format
+msgid ""
+"the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
+"-g/--governor parameters\n"
+msgstr ""
+"přepínač -f/--freq nemůže být použit zároveň\n"
+"s přepínačem -d/--min, -u/--max nebo -g/--governor\n"
+
+#: utils/set.c:262
+#, c-format
+msgid ""
+"At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
+"-g/--governor must be passed\n"
+msgstr ""
+"Musí být zadán alespoň jeden přepínač\n"
+"-f/--freq, -d/--min, -u/--max nebo -g/--governor\n"
+
+#: utils/set.c:282
+#, c-format
+msgid "wrong, unknown or unhandled CPU?\n"
+msgstr "neznámý nebo nepodporovaný CPU?\n"
+
+#: utils/set.c:306
+#, c-format
+msgid ""
+"Error setting new values. Common errors:\n"
+"- Do you have proper administration rights? (super-user?)\n"
+"- Is the governor you requested available and modprobed?\n"
+"- Trying to set an invalid policy?\n"
+"- Trying to set a specific frequency, but userspace governor is not "
+"available,\n"
+" for example because of hardware which cannot be set to a specific "
+"frequency\n"
+" or because the userspace governor isn't loaded?\n"
+msgstr ""
+"Chyba při nastavování nových hodnot. Obvyklé problémy:\n"
+"- Máte patřičná administrátorská práva? (root?)\n"
+"- Je požadovaný regulátor dostupný v jádře? (modprobe?)\n"
+"- Snažíte se nastavit neplatnou taktiku?\n"
+"- Snažíte se nastavit určitou frekvenci, ale není dostupný\n"
+" regulátor ‚userspace‘, například protože není nahrán v jádře,\n"
+" nebo nelze na tomto hardware nastavit určitou frekvenci?\n"
--- /dev/null
+# German translations for cpufrequtils package
+# German messages for cpufrequtils.
+# Copyright (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.net>
+# This file is distributed under the same license as the cpufrequtils package.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: cpufrequtils 006\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2009-08-09 11:53+0200\n"
+"PO-Revision-Date: 2009-08-08 17:18+0100\n"
+"Last-Translator: <linux@dominikbrodowski.net>\n"
+"Language-Team: NONE\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=ISO-8859-1\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+#: utils/info.c:36
+#, c-format
+msgid "Couldn't count the number of CPUs (%s: %s), assuming 1\n"
+msgstr ""
+"Konnte nicht die Anzahl der CPUs herausfinden (%s : %s), nehme daher 1 an.\n"
+
+#: utils/info.c:68
+#, c-format
+msgid ""
+" minimum CPU frequency - maximum CPU frequency - governor\n"
+msgstr ""
+" minimale CPU-Taktfreq. - maximale CPU-Taktfreq. - Regler \n"
+
+#: utils/info.c:156
+#, c-format
+msgid "couldn't analyze CPU %d as it doesn't seem to be present\n"
+msgstr ""
+"Konnte nicht die CPU %d analysieren, da sie (scheinbar?) nicht existiert.\n"
+
+#: utils/info.c:160
+#, c-format
+msgid "analyzing CPU %d:\n"
+msgstr "analysiere CPU %d:\n"
+
+#: utils/info.c:167
+#, c-format
+msgid " no or unknown cpufreq driver is active on this CPU\n"
+msgstr " kein oder nicht bestimmbarer cpufreq-Treiber aktiv\n"
+
+#: utils/info.c:169
+#, c-format
+msgid " driver: %s\n"
+msgstr " Treiber: %s\n"
+
+#: utils/info.c:175
+#, c-format
+msgid " CPUs which run at the same hardware frequency: "
+msgstr " Folgende CPUs laufen mit der gleichen Hardware-Taktfrequenz: "
+
+#: utils/info.c:186
+#, c-format
+msgid " CPUs which need to have their frequency coordinated by software: "
+msgstr " Die Taktfrequenz folgender CPUs werden per Software koordiniert: "
+
+#: utils/info.c:197
+#, c-format
+msgid " maximum transition latency: "
+msgstr " Maximale Dauer eines Taktfrequenzwechsels: "
+
+#: utils/info.c:203
+#, c-format
+msgid " hardware limits: "
+msgstr " Hardwarebedingte Grenzen der Taktfrequenz: "
+
+#: utils/info.c:212
+#, c-format
+msgid " available frequency steps: "
+msgstr " mögliche Taktfrequenzen: "
+
+#: utils/info.c:225
+#, c-format
+msgid " available cpufreq governors: "
+msgstr " mögliche Regler: "
+
+#: utils/info.c:236
+#, c-format
+msgid " current policy: frequency should be within "
+msgstr " momentane Taktik: die Frequenz soll innerhalb "
+
+#: utils/info.c:238
+#, c-format
+msgid " and "
+msgstr " und "
+
+#: utils/info.c:242
+#, c-format
+msgid ""
+"The governor \"%s\" may decide which speed to use\n"
+" within this range.\n"
+msgstr ""
+" liegen. Der Regler \"%s\" kann frei entscheiden,\n"
+" welche Taktfrequenz innerhalb dieser Grenze verwendet "
+"wird.\n"
+
+#: utils/info.c:249
+#, c-format
+msgid " current CPU frequency is "
+msgstr " momentane Taktfrequenz ist "
+
+#: utils/info.c:252
+#, c-format
+msgid " (asserted by call to hardware)"
+msgstr " (verifiziert durch Nachfrage bei der Hardware)"
+
+#: utils/info.c:260
+#, c-format
+msgid " cpufreq stats: "
+msgstr " Statistik:"
+
+#: utils/info.c:440 utils/set.c:31
+#, c-format
+msgid "Report errors and bugs to %s, please.\n"
+msgstr "Bitte melden Sie Fehler an %s.\n"
+
+#: utils/info.c:444
+#, c-format
+msgid "Usage: cpufreq-info [options]\n"
+msgstr "Aufruf: cpufreq-info [Optionen]\n"
+
+#: utils/info.c:445 utils/set.c:37
+#, c-format
+msgid "Options:\n"
+msgstr "Optionen:\n"
+
+#: utils/info.c:446
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU CPU number which information shall be determined "
+"about\n"
+msgstr ""
+" -c CPU, --cpu CPU Nummer der CPU, über die Informationen herausgefunden "
+"werden sollen\n"
+
+#: utils/info.c:447
+#, c-format
+msgid " -e, --debug Prints out debug information\n"
+msgstr ""
+" -e, --debug Erzeugt detaillierte Informationen, hilfreich\n"
+" zum Aufspüren von Fehlern\n"
+
+#: utils/info.c:448
+#, c-format
+msgid ""
+" -f, --freq Get frequency the CPU currently runs at, according\n"
+" to the cpufreq core *\n"
+msgstr ""
+" -f, --freq Findet die momentane CPU-Taktfrquenz heraus (nach\n"
+" Meinung des Betriebssystems) *\n"
+
+#: utils/info.c:450
+#, c-format
+msgid ""
+" -w, --hwfreq Get frequency the CPU currently runs at, by reading\n"
+" it from hardware (only available to root) *\n"
+msgstr ""
+" -w, --hwfreq Findet die momentane CPU-Taktfrequenz heraus\n"
+" (verifiziert durch Nachfrage bei der Hardware)\n"
+" [nur der Administrator kann dies tun] *\n"
+
+#: utils/info.c:452
+#, c-format
+msgid ""
+" -l, --hwlimits Determine the minimum and maximum CPU frequency "
+"allowed *\n"
+msgstr ""
+" -l, --hwlimits Findet die minimale und maximale Taktfrequenz heraus "
+"*\n"
+
+#: utils/info.c:453
+#, c-format
+msgid " -d, --driver Determines the used cpufreq kernel driver *\n"
+msgstr " -d, --driver Findet den momentanen Treiber heraus *\n"
+
+#: utils/info.c:454
+#, c-format
+msgid " -p, --policy Gets the currently used cpufreq policy *\n"
+msgstr " -p, --policy Findet die momentane Taktik heraus *\n"
+
+#: utils/info.c:455
+#, c-format
+msgid " -g, --governors Determines available cpufreq governors *\n"
+msgstr " -g, --governors Erzeugt eine Liste mit verfügbaren Reglern *\n"
+
+#: utils/info.c:456
+#, c-format
+msgid ""
+" -r, --related-cpus Determines which CPUs run at the same hardware "
+"frequency *\n"
+msgstr ""
+" -r, --related-cpus Findet heraus, welche CPUs mit derselben "
+"physikalischen\n"
+" Taktfrequenz laufen *\n"
+
+#: utils/info.c:457
+#, c-format
+msgid ""
+" -a, --affected-cpus Determines which CPUs need to have their frequency\n"
+" coordinated by software *\n"
+msgstr ""
+" -a, --affected-cpus Findet heraus, von welchen CPUs die Taktfrequenz "
+"durch\n"
+" Software koordiniert werden muss *\n"
+
+#: utils/info.c:459
+#, c-format
+msgid " -s, --stats Shows cpufreq statistics if available\n"
+msgstr ""
+" -s, --stats Zeigt, sofern möglich, Statistiken über cpufreq an.\n"
+
+#: utils/info.c:460
+#, c-format
+msgid ""
+" -y, --latency Determines the maximum latency on CPU frequency "
+"changes *\n"
+msgstr ""
+" -y, --latency Findet die maximale Dauer eines Taktfrequenzwechsels "
+"heraus *\n"
+
+#: utils/info.c:461
+#, c-format
+msgid ""
+" -o, --proc Prints out information like provided by the /proc/"
+"cpufreq\n"
+" interface in 2.4. and early 2.6. kernels\n"
+msgstr ""
+" -o, --proc Erzeugt Informationen in einem ähnlichem Format zu "
+"dem\n"
+" der /proc/cpufreq-Datei in 2.4. und frühen 2.6.\n"
+" Kernel-Versionen\n"
+
+#: utils/info.c:463
+#, c-format
+msgid ""
+" -m, --human human-readable output for the -f, -w, -s and -y "
+"parameters\n"
+msgstr ""
+" -m, --human Formatiert Taktfrequenz- und Zeitdauerangaben in "
+"besser\n"
+" lesbarer Form (MHz, GHz; us, ms)\n"
+
+#: utils/info.c:464
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Gibt diese Kurzübersicht aus\n"
+
+#: utils/info.c:467
+#, c-format
+msgid ""
+"If no argument or only the -c, --cpu parameter is given, debug output about\n"
+"cpufreq is printed which is useful e.g. for reporting bugs.\n"
+msgstr ""
+"Sofern kein anderer Parameter als '-c, --cpu' angegeben wird, liefert "
+"dieses\n"
+"Programm Informationen, die z.B. zum Berichten von Fehlern nützlich sind.\n"
+
+#: utils/info.c:469
+#, c-format
+msgid ""
+"For the arguments marked with *, omitting the -c or --cpu argument is\n"
+"equivalent to setting it to zero\n"
+msgstr ""
+"Bei den mit * markierten Parametern wird '--cpu 0' angenommen, soweit nicht\n"
+"mittels -c oder --cpu etwas anderes angegeben wird\n"
+
+#: utils/info.c:563
+#, c-format
+msgid ""
+"The argument passed to this tool can't be combined with passing a --cpu "
+"argument\n"
+msgstr "Diese Option kann nicht mit der --cpu-Option kombiniert werden\n"
+
+#: utils/info.c:576
+#, c-format
+msgid ""
+"You can't specify more than one --cpu parameter and/or\n"
+"more than one output-specific argument\n"
+msgstr ""
+"Man kann nicht mehr als einen --cpu-Parameter und/oder mehr als einen\n"
+"informationsspezifischen Parameter gleichzeitig angeben\n"
+
+#: utils/info.c:582 utils/set.c:95
+#, c-format
+msgid "invalid or unknown argument\n"
+msgstr "unbekannter oder falscher Parameter\n"
+
+#: utils/set.c:36
+#, c-format
+msgid "Usage: cpufreq-set [options]\n"
+msgstr "Aufruf: cpufreq-set [Optionen]\n"
+
+#: utils/set.c:38
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU number of CPU where cpufreq settings shall be "
+"modified\n"
+msgstr ""
+" -c CPU, --cpu CPU Nummer der CPU, deren Taktfrequenz-Einstellung\n"
+" werden soll\n"
+
+#: utils/set.c:39
+#, c-format
+msgid ""
+" -d FREQ, --min FREQ new minimum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -d FREQ, --min FREQ neue minimale Taktfrequenz, die der Regler\n"
+" auswählen darf\n"
+
+#: utils/set.c:40
+#, c-format
+msgid ""
+" -u FREQ, --max FREQ new maximum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -u FREQ, --max FREQ neue maximale Taktfrequenz, die der Regler\n"
+" auswählen darf\n"
+
+#: utils/set.c:41
+#, c-format
+msgid " -g GOV, --governor GOV new cpufreq governor\n"
+msgstr " -g GOV, --governors GOV wechsle zu Regler GOV\n"
+
+#: utils/set.c:42
+#, c-format
+msgid ""
+" -f FREQ, --freq FREQ specific frequency to be set. Requires userspace\n"
+" governor to be available and loaded\n"
+msgstr ""
+" -f FREQ, --freq FREQ setze exakte Taktfrequenz. Benötigt den Regler\n"
+" 'userspace'.\n"
+
+#: utils/set.c:44
+#, c-format
+msgid " -r, --related Switches all hardware-related CPUs\n"
+msgstr ""
+" -r, --related Setze Werte für alle CPUs, deren Taktfrequenz\n"
+" hardwarebedingt identisch ist.\n"
+
+#: utils/set.c:45
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Gibt diese Kurzübersicht aus\n"
+
+#: utils/set.c:47
+#, c-format
+msgid ""
+"Notes:\n"
+"1. Omitting the -c or --cpu argument is equivalent to setting it to zero\n"
+"2. The -f FREQ, --freq FREQ parameter cannot be combined with any other "
+"parameter\n"
+" except the -c CPU, --cpu CPU parameter\n"
+"3. FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz\n"
+" by postfixing the value with the wanted unit name, without any space\n"
+" (FREQuency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+msgstr ""
+"Hinweise:\n"
+"1. Sofern kein -c oder --cpu-Parameter angegeben ist, wird '--cpu 0'\n"
+" angenommen\n"
+"2. Der Parameter -f bzw. --freq kann mit keinem anderen als dem Parameter\n"
+" -c bzw. --cpu kombiniert werden\n"
+"3. FREQuenzen können in Hz, kHz (Standard), MHz, GHz oder THz eingegeben\n"
+" werden, indem der Wert und unmittelbar anschließend (ohne Leerzeichen!)\n"
+" die Einheit angegeben werden. (Bsp: 1GHz )\n"
+" (FREQuenz in kHz =^ MHz * 1000 =^ GHz * 1000000).\n"
+
+#: utils/set.c:69
+#, c-format
+msgid ""
+"Error setting new values. Common errors:\n"
+"- Do you have proper administration rights? (super-user?)\n"
+"- Is the governor you requested available and modprobed?\n"
+"- Trying to set an invalid policy?\n"
+"- Trying to set a specific frequency, but userspace governor is not "
+"available,\n"
+" for example because of hardware which cannot be set to a specific "
+"frequency\n"
+" or because the userspace governor isn't loaded?\n"
+msgstr ""
+"Beim Einstellen ist ein Fehler aufgetreten. Typische Fehlerquellen sind:\n"
+"- nicht ausreichende Rechte (Administrator)\n"
+"- der Regler ist nicht verfügbar bzw. nicht geladen\n"
+"- die angegebene Taktik ist inkorrekt\n"
+"- eine spezifische Frequenz wurde angegeben, aber der Regler 'userspace'\n"
+" kann entweder hardwarebedingt nicht genutzt werden oder ist nicht geladen\n"
+
+#: utils/set.c:183
+#, c-format
+msgid "wrong, unknown or unhandled CPU?\n"
+msgstr "unbekannte oder nicht regelbare CPU\n"
+
+#: utils/set.c:336
+#, c-format
+msgid ""
+"the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
+"-g/--governor parameters\n"
+msgstr ""
+"Der -f bzw. --freq-Parameter kann nicht mit den Parametern -d/--min, -u/--"
+"max\n"
+"oder -g/--governor kombiniert werden\n"
+
+#: utils/set.c:342
+#, c-format
+msgid ""
+"At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
+"-g/--governor must be passed\n"
+msgstr ""
+"Es muss mindestens ein Parameter aus -f/--freq, -d/--min, -u/--max oder\n"
+"-g/--governor angegeben werden.\n"
--- /dev/null
+# French translations for cpufrequtils package
+# Copyright (C) 2004 THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the cpufrequtils package.
+# Ducrot Bruno <ducrot@poupinou.org>, 2004.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: cpufrequtils 0.1-pre2\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2008-07-17 11:29+0200\n"
+"PO-Revision-Date: 2004-11-17 15:53+1000\n"
+"Last-Translator: Bruno Ducrot <ducrot@poupinou.org>\n"
+"Language-Team: NONE\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=ISO-8859-1\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: utils/info.c:36
+#, c-format
+msgid "Couldn't count the number of CPUs (%s: %s), assuming 1\n"
+msgstr "Détermination du nombre de CPUs (%s : %s) impossible. Assume 1\n"
+
+#: utils/info.c:67
+#, c-format
+msgid ""
+" minimum CPU frequency - maximum CPU frequency - governor\n"
+msgstr ""
+" Fréquence CPU minimale - Fréquence CPU maximale - régulateur\n"
+
+#: utils/info.c:128
+#, c-format
+msgid "couldn't analyze CPU %d as it doesn't seem to be present\n"
+msgstr "analyse du CPU %d impossible puisqu'il ne semble pas être présent\n"
+
+#: utils/info.c:132
+#, c-format
+msgid "analyzing CPU %d:\n"
+msgstr "analyse du CPU %d :\n"
+
+#: utils/info.c:139
+#, c-format
+msgid " no or unknown cpufreq driver is active on this CPU\n"
+msgstr " pas de pilotes cpufreq reconnu pour ce CPU\n"
+
+#: utils/info.c:141
+#, c-format
+msgid " driver: %s\n"
+msgstr " pilote : %s\n"
+
+#: utils/info.c:147
+#, c-format
+msgid " CPUs which need to switch frequency at the same time: "
+msgstr " CPUs qui doivent changer de fréquences en même temps : "
+
+#: utils/info.c:157
+#, c-format
+msgid " hardware limits: "
+msgstr " limitation matérielle : "
+
+#: utils/info.c:166
+#, c-format
+msgid " available frequency steps: "
+msgstr " plage de fréquence : "
+
+#: utils/info.c:179
+#, c-format
+msgid " available cpufreq governors: "
+msgstr " régulateurs disponibles : "
+
+#: utils/info.c:190
+#, c-format
+msgid " current policy: frequency should be within "
+msgstr " tactique actuelle : la fréquence doit être comprise entre "
+
+#: utils/info.c:192
+#, c-format
+msgid " and "
+msgstr " et "
+
+#: utils/info.c:196
+#, c-format
+msgid ""
+"The governor \"%s\" may decide which speed to use\n"
+" within this range.\n"
+msgstr ""
+"Le régulateur \"%s\" est libre de choisir la vitesse\n"
+" dans cette plage de fréquences.\n"
+
+#: utils/info.c:203
+#, c-format
+msgid " current CPU frequency is "
+msgstr " la fréquence actuelle de ce CPU est "
+
+#: utils/info.c:206
+#, c-format
+msgid " (asserted by call to hardware)"
+msgstr " (vérifié par un appel direct du matériel)"
+
+#: utils/info.c:214
+#, c-format
+msgid " cpufreq stats: "
+msgstr " des statistique concernant cpufreq:"
+
+#: utils/info.c:361 utils/set.c:30
+#, c-format
+msgid "Report errors and bugs to %s, please.\n"
+msgstr "Veuillez rapportez les erreurs et les bogues à %s, s'il vous plait.\n"
+
+#: utils/info.c:365
+#, c-format
+msgid "Usage: cpufreq-info [options]\n"
+msgstr "Usage : cpufreq-info [options]\n"
+
+#: utils/info.c:366 utils/set.c:35
+#, c-format
+msgid "Options:\n"
+msgstr "Options :\n"
+
+#: utils/info.c:367
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU CPU number which information shall be determined "
+"about\n"
+msgstr ""
+" -c CPU, --cpu CPU Numéro du CPU pour lequel l'information sera "
+"affichée\n"
+
+#: utils/info.c:368
+#, c-format
+msgid " -e, --debug Prints out debug information\n"
+msgstr " -e, --debug Afficher les informations de déboguage\n"
+
+#: utils/info.c:369
+#, c-format
+msgid ""
+" -f, --freq Get frequency the CPU currently runs at, according\n"
+" to the cpufreq core *\n"
+msgstr ""
+" -f, --freq Obtenir la fréquence actuelle du CPU selon le point\n"
+" de vue du coeur du système de cpufreq *\n"
+
+#: utils/info.c:371
+#, c-format
+msgid ""
+" -w, --hwfreq Get frequency the CPU currently runs at, by reading\n"
+" it from hardware (only available to root) *\n"
+msgstr ""
+" -w, --hwfreq Obtenir la fréquence actuelle du CPU directement par\n"
+" le matériel (doit être root) *\n"
+
+#: utils/info.c:373
+#, c-format
+msgid ""
+" -l, --hwlimits Determine the minimum and maximum CPU frequency "
+"allowed *\n"
+msgstr ""
+" -l, --hwlimits Affiche les fréquences minimales et maximales du CPU "
+"*\n"
+
+#: utils/info.c:374
+#, c-format
+msgid " -d, --driver Determines the used cpufreq kernel driver *\n"
+msgstr " -d, --driver Affiche le pilote cpufreq utilisé *\n"
+
+#: utils/info.c:375
+#, c-format
+msgid " -p, --policy Gets the currently used cpufreq policy *\n"
+msgstr " -p, --policy Affiche la tactique actuelle de cpufreq *\n"
+
+#: utils/info.c:376
+#, c-format
+msgid " -g, --governors Determines available cpufreq governors *\n"
+msgstr ""
+" -g, --governors Affiche les régulateurs disponibles de cpufreq *\n"
+
+#: utils/info.c:377
+#, c-format
+msgid ""
+" -a, --affected-cpus Determines which CPUs can only switch frequency at "
+"the\n"
+" same time *\n"
+msgstr ""
+" -a, --affected-cpus Affiche quels sont les CPUs qui doivent changer de\n"
+" fréquences en même temps *\n"
+
+#: utils/info.c:379
+#, c-format
+msgid " -s, --stats Shows cpufreq statistics if available\n"
+msgstr ""
+" -s, --stats Indique des statistiques concernant cpufreq, si\n"
+" disponibles\n"
+
+#: utils/info.c:380
+#, c-format
+msgid ""
+" -o, --proc Prints out information like provided by the /proc/"
+"cpufreq\n"
+" interface in 2.4. and early 2.6. kernels\n"
+msgstr ""
+" -o, --proc Affiche les informations en utilisant l'interface\n"
+" fournie par /proc/cpufreq, présente dans les "
+"versions\n"
+" 2.4 et les anciennes versions 2.6 du noyau\n"
+
+#: utils/info.c:382
+#, c-format
+msgid ""
+" -m, --human human-readable output for the -f, -w and -s "
+"parameters\n"
+msgstr ""
+" -m, --human affiche dans un format lisible pour un humain\n"
+" pour les options -f, -w et -s (MHz, GHz)\n"
+
+#: utils/info.c:383 utils/set.c:42
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help affiche l'aide-mémoire\n"
+
+#: utils/info.c:386
+#, c-format
+msgid ""
+"If no argument or only the -c, --cpu parameter is given, debug output about\n"
+"cpufreq is printed which is useful e.g. for reporting bugs.\n"
+msgstr ""
+"Par défaut, les informations de déboguage seront affichées si aucun\n"
+"argument, ou bien si seulement l'argument -c (--cpu) est donné, afin de\n"
+"faciliter les rapports de bogues par exemple\n"
+
+#: utils/info.c:388
+#, c-format
+msgid ""
+"For the arguments marked with *, omitting the -c or --cpu argument is\n"
+"equivalent to setting it to zero\n"
+msgstr "Les arguments avec un * utiliseront le CPU 0 si -c (--cpu) est omis\n"
+
+#: utils/info.c:478
+#, c-format
+msgid ""
+"The argument passed to this tool can't be combined with passing a --cpu "
+"argument\n"
+msgstr "Cette option est incompatible avec --cpu\n"
+
+#: utils/info.c:491
+#, c-format
+msgid ""
+"You can't specify more than one --cpu parameter and/or\n"
+"more than one output-specific argument\n"
+msgstr ""
+"On ne peut indiquer plus d'un paramètre --cpu, tout comme l'on ne peut\n"
+"spécifier plus d'un argument de formatage\n"
+
+#: utils/info.c:497 utils/set.c:79
+#, c-format
+msgid "invalid or unknown argument\n"
+msgstr "option invalide\n"
+
+#: utils/set.c:34
+#, c-format
+msgid "Usage: cpufreq-set [options]\n"
+msgstr "Usage : cpufreq-set [options]\n"
+
+#: utils/set.c:36
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU number of CPU where cpufreq settings shall be "
+"modified\n"
+msgstr ""
+" -c CPU, --cpu CPU numéro du CPU à prendre en compte pour les\n"
+" changements\n"
+
+#: utils/set.c:37
+#, c-format
+msgid ""
+" -d FREQ, --min FREQ new minimum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -d FREQ, --min FREQ nouvelle fréquence minimale du CPU à utiliser\n"
+" par le régulateur\n"
+
+#: utils/set.c:38
+#, c-format
+msgid ""
+" -u FREQ, --max FREQ new maximum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -u FREQ, --max FREQ nouvelle fréquence maximale du CPU à utiliser\n"
+" par le régulateur\n"
+
+#: utils/set.c:39
+#, c-format
+msgid " -g GOV, --governor GOV new cpufreq governor\n"
+msgstr " -g GOV, --governor GOV active le régulateur GOV\n"
+
+#: utils/set.c:40
+#, c-format
+msgid ""
+" -f FREQ, --freq FREQ specific frequency to be set. Requires userspace\n"
+" governor to be available and loaded\n"
+msgstr ""
+" -f FREQ, --freq FREQ fixe la fréquence du processeur à FREQ. Il faut\n"
+" que le régulateur « userspace » soit disponible \n"
+" et activé.\n"
+
+#: utils/set.c:44
+#, c-format
+msgid ""
+"Notes:\n"
+"1. Omitting the -c or --cpu argument is equivalent to setting it to zero\n"
+"2. The -f FREQ, --freq FREQ parameter cannot be combined with any other "
+"parameter\n"
+" except the -c CPU, --cpu CPU parameter\n"
+"3. FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz\n"
+" by postfixing the value with the wanted unit name, without any space\n"
+" (FREQuency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+msgstr ""
+"Remarque :\n"
+"1. Le CPU numéro 0 sera utilisé par défaut si -c (ou --cpu) est omis ;\n"
+"2. l'argument -f FREQ (ou --freq FREQ) ne peut être utilisé qu'avec --cpu ;\n"
+"3. on pourra préciser l'unité des fréquences en postfixant sans aucune "
+"espace\n"
+" les valeurs par hz, kHz (par défaut), MHz, GHz ou THz\n"
+" (kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+
+#: utils/set.c:251
+#, c-format
+msgid ""
+"the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
+"-g/--governor parameters\n"
+msgstr ""
+"l'option -f/--freq est incompatible avec les options -d/--min, -u/--max et\n"
+"-g/--governor\n"
+
+#: utils/set.c:262
+#, c-format
+msgid ""
+"At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
+"-g/--governor must be passed\n"
+msgstr ""
+"L'un de ces paramètres est obligatoire : -f/--freq, -d/--min, -u/--max et\n"
+"-g/--governor\n"
+
+#: utils/set.c:282
+#, c-format
+msgid "wrong, unknown or unhandled CPU?\n"
+msgstr "CPU inconnu ou non supporté ?\n"
+
+#: utils/set.c:306
+#, c-format
+msgid ""
+"Error setting new values. Common errors:\n"
+"- Do you have proper administration rights? (super-user?)\n"
+"- Is the governor you requested available and modprobed?\n"
+"- Trying to set an invalid policy?\n"
+"- Trying to set a specific frequency, but userspace governor is not "
+"available,\n"
+" for example because of hardware which cannot be set to a specific "
+"frequency\n"
+" or because the userspace governor isn't loaded?\n"
+msgstr ""
+"En ajustant les nouveaux paramètres, une erreur est apparue. Les sources\n"
+"d'erreur typique sont :\n"
+"- droit d'administration insuffisant (êtes-vous root ?) ;\n"
+"- le régulateur choisi n'est pas disponible, ou bien n'est pas disponible "
+"en\n"
+" tant que module noyau ;\n"
+"- la tactique n'est pas disponible ;\n"
+"- vous voulez utiliser l'option -f/--freq, mais le régulateur « userspace »\n"
+" n'est pas disponible, par exemple parce que le matériel ne le supporte\n"
+" pas, ou bien n'est tout simplement pas chargé.\n"
--- /dev/null
+# Italian translations for cpufrequtils package
+# Copyright (C) 2004-2009
+# This file is distributed under the same license as the cpufrequtils package.
+# Mattia Dongili <malattia@gmail.com>.
+#
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: cpufrequtils 0.3\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2009-08-09 11:53+0200\n"
+"PO-Revision-Date: 2009-08-15 12:00+0900\n"
+"Last-Translator: Mattia Dongili <malattia@gmail.com>\n"
+"Language-Team: NONE\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: utils/info.c:36
+#, c-format
+msgid "Couldn't count the number of CPUs (%s: %s), assuming 1\n"
+msgstr "Impossibile determinare il numero di CPU (%s: %s), assumo sia 1\n"
+
+#: utils/info.c:68
+#, c-format
+msgid ""
+" minimum CPU frequency - maximum CPU frequency - governor\n"
+msgstr ""
+" frequenza minima CPU - frequenza massima CPU - gestore\n"
+
+#: utils/info.c:156
+#, c-format
+msgid "couldn't analyze CPU %d as it doesn't seem to be present\n"
+msgstr "impossibile analizzare la CPU %d poiché non sembra essere presente\n"
+
+#: utils/info.c:160
+#, c-format
+msgid "analyzing CPU %d:\n"
+msgstr "analisi della CPU %d:\n"
+
+#: utils/info.c:167
+#, c-format
+msgid " no or unknown cpufreq driver is active on this CPU\n"
+msgstr " nessun modulo o modulo cpufreq sconosciuto per questa CPU\n"
+
+#: utils/info.c:169
+#, c-format
+msgid " driver: %s\n"
+msgstr " modulo %s\n"
+
+#: utils/info.c:175
+#, c-format
+msgid " CPUs which run at the same hardware frequency: "
+msgstr " CPU che operano alla stessa frequenza hardware: "
+
+#: utils/info.c:186
+#, c-format
+msgid " CPUs which need to have their frequency coordinated by software: "
+msgstr " CPU che è necessario siano coordinate dal software: "
+
+#: utils/info.c:197
+#, c-format
+msgid " maximum transition latency: "
+msgstr " latenza massima durante la transizione: "
+
+#: utils/info.c:203
+#, c-format
+msgid " hardware limits: "
+msgstr " limiti hardware: "
+
+#: utils/info.c:212
+#, c-format
+msgid " available frequency steps: "
+msgstr " frequenze disponibili: "
+
+#: utils/info.c:225
+#, c-format
+msgid " available cpufreq governors: "
+msgstr " gestori disponibili: "
+
+#: utils/info.c:236
+#, c-format
+msgid " current policy: frequency should be within "
+msgstr " gestore attuale: la frequenza deve mantenersi tra "
+
+#: utils/info.c:238
+#, c-format
+msgid " and "
+msgstr " e "
+
+#: utils/info.c:242
+#, c-format
+msgid ""
+"The governor \"%s\" may decide which speed to use\n"
+" within this range.\n"
+msgstr ""
+" Il gestore \"%s\" può decidere quale velocità usare\n"
+" in questo intervallo.\n"
+
+#: utils/info.c:249
+#, c-format
+msgid " current CPU frequency is "
+msgstr " la frequenza attuale della CPU è "
+
+#: utils/info.c:252
+#, c-format
+msgid " (asserted by call to hardware)"
+msgstr " (ottenuta da una chiamata diretta all'hardware)"
+
+#: utils/info.c:260
+#, c-format
+msgid " cpufreq stats: "
+msgstr " statistiche cpufreq:"
+
+#: utils/info.c:440 utils/set.c:31
+#, c-format
+msgid "Report errors and bugs to %s, please.\n"
+msgstr "Per favore, comunicare errori e malfunzionamenti a %s.\n"
+
+#: utils/info.c:444
+#, c-format
+msgid "Usage: cpufreq-info [options]\n"
+msgstr "Uso: cpufreq-info [opzioni]\n"
+
+#: utils/info.c:445 utils/set.c:37
+#, c-format
+msgid "Options:\n"
+msgstr "Opzioni:\n"
+
+#: utils/info.c:446
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU CPU number which information shall be determined "
+"about\n"
+msgstr ""
+" -c CPU, --cpu CPU Numero di CPU per la quale ottenere le informazioni\n"
+
+#: utils/info.c:447
+#, c-format
+msgid " -e, --debug Prints out debug information\n"
+msgstr " -e, --debug Mostra informazioni di debug\n"
+
+#: utils/info.c:448
+#, c-format
+msgid ""
+" -f, --freq Get frequency the CPU currently runs at, according\n"
+" to the cpufreq core *\n"
+msgstr ""
+" -f, --freq Mostra la frequenza attuale della CPU secondo\n"
+" il modulo cpufreq *\n"
+
+#: utils/info.c:450
+#, c-format
+msgid ""
+" -w, --hwfreq Get frequency the CPU currently runs at, by reading\n"
+" it from hardware (only available to root) *\n"
+msgstr ""
+" -w, --hwfreq Mostra la frequenza attuale della CPU leggendola\n"
+" dall'hardware (disponibile solo per l'utente root) *\n"
+
+#: utils/info.c:452
+#, c-format
+msgid ""
+" -l, --hwlimits Determine the minimum and maximum CPU frequency "
+"allowed *\n"
+msgstr ""
+" -l, --hwlimits Determina le frequenze minima e massima possibili per "
+"la CPU *\n"
+
+#: utils/info.c:453
+#, c-format
+msgid " -d, --driver Determines the used cpufreq kernel driver *\n"
+msgstr ""
+" -d, --driver Determina il modulo cpufreq del kernel in uso *\n"
+
+#: utils/info.c:454
+#, c-format
+msgid " -p, --policy Gets the currently used cpufreq policy *\n"
+msgstr ""
+" -p, --policy Mostra il gestore cpufreq attualmente in uso *\n"
+
+#: utils/info.c:455
+#, c-format
+msgid " -g, --governors Determines available cpufreq governors *\n"
+msgstr " -g, --governors Determina i gestori cpufreq disponibili *\n"
+
+#: utils/info.c:456
+#, c-format
+msgid ""
+" -r, --related-cpus Determines which CPUs run at the same hardware "
+"frequency *\n"
+msgstr ""
+" -r, --related-cpus Determina quali CPU operano alla stessa frequenza *\n"
+
+#: utils/info.c:457
+#, c-format
+msgid ""
+" -a, --affected-cpus Determines which CPUs need to have their frequency\n"
+" coordinated by software *\n"
+msgstr ""
+" -a, --affected-cpus Determina quali CPU devono avere la frequenza\n"
+" coordinata dal software *\n"
+
+#: utils/info.c:459
+#, c-format
+msgid " -s, --stats Shows cpufreq statistics if available\n"
+msgstr " -s, --stats Mostra le statistiche se disponibili\n"
+
+#: utils/info.c:460
+#, c-format
+msgid ""
+" -y, --latency Determines the maximum latency on CPU frequency "
+"changes *\n"
+msgstr ""
+" -y, --latency Determina la latenza massima durante i cambi di "
+"frequenza *\n"
+
+#: utils/info.c:461
+#, c-format
+msgid ""
+" -o, --proc Prints out information like provided by the /proc/"
+"cpufreq\n"
+" interface in 2.4. and early 2.6. kernels\n"
+msgstr ""
+" -o, --proc Stampa le informazioni come se provenissero dalla\n"
+" interfaccia cpufreq /proc/ presente nei kernel\n"
+" 2.4 ed i primi 2.6\n"
+
+#: utils/info.c:463
+#, c-format
+msgid ""
+" -m, --human human-readable output for the -f, -w, -s and -y "
+"parameters\n"
+msgstr ""
+" -m, --human formatta l'output delle opzioni -f, -w, -s e -y in "
+"maniera\n"
+" leggibile da un essere umano\n"
+
+#: utils/info.c:464
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Stampa questa schermata\n"
+
+#: utils/info.c:467
+#, c-format
+msgid ""
+"If no argument or only the -c, --cpu parameter is given, debug output about\n"
+"cpufreq is printed which is useful e.g. for reporting bugs.\n"
+msgstr ""
+"Se non viene specificata nessuna opzione o viene specificata solo l'opzione -"
+"c, --cpu,\n"
+"le informazioni di debug per cpufreq saranno utili ad esempio a riportare i "
+"bug.\n"
+
+#: utils/info.c:469
+#, c-format
+msgid ""
+"For the arguments marked with *, omitting the -c or --cpu argument is\n"
+"equivalent to setting it to zero\n"
+msgstr ""
+"Per le opzioni segnalate con *, omettere l'opzione -c o --cpu è come "
+"specificarla\n"
+"con il valore 0\n"
+
+#: utils/info.c:563
+#, c-format
+msgid ""
+"The argument passed to this tool can't be combined with passing a --cpu "
+"argument\n"
+msgstr ""
+"L'opzione specificata a questo programma non può essere combinata con --cpu\n"
+
+#: utils/info.c:576
+#, c-format
+msgid ""
+"You can't specify more than one --cpu parameter and/or\n"
+"more than one output-specific argument\n"
+msgstr ""
+"Non è possibile specificare più di una volta l'opzione --cpu e/o\n"
+"specificare più di un parametro di output specifico\n"
+
+#: utils/info.c:582 utils/set.c:95
+#, c-format
+msgid "invalid or unknown argument\n"
+msgstr "opzione sconosciuta o non valida\n"
+
+#: utils/set.c:36
+#, c-format
+msgid "Usage: cpufreq-set [options]\n"
+msgstr "Uso: cpufreq-set [opzioni]\n"
+
+#: utils/set.c:38
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU number of CPU where cpufreq settings shall be "
+"modified\n"
+msgstr ""
+" -c CPU, --cpu CPU numero di CPU per la quale modificare le "
+"impostazioni\n"
+
+#: utils/set.c:39
+#, c-format
+msgid ""
+" -d FREQ, --min FREQ new minimum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -d FREQ, --min FREQ la nuova frequenza minima che il gestore cpufreq "
+"può scegliere\n"
+
+#: utils/set.c:40
+#, c-format
+msgid ""
+" -u FREQ, --max FREQ new maximum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -u FREQ, --max FREQ la nuova frequenza massima che il gestore cpufreq "
+"può scegliere\n"
+
+#: utils/set.c:41
+#, c-format
+msgid " -g GOV, --governor GOV new cpufreq governor\n"
+msgstr " -g GOV, --governor GOV nuovo gestore cpufreq\n"
+
+#: utils/set.c:42
+#, c-format
+msgid ""
+" -f FREQ, --freq FREQ specific frequency to be set. Requires userspace\n"
+" governor to be available and loaded\n"
+msgstr ""
+" -f FREQ, --freq FREQ specifica la frequenza a cui impostare la CPU.\n"
+" È necessario che il gestore userspace sia "
+"disponibile e caricato\n"
+
+#: utils/set.c:44
+#, c-format
+msgid " -r, --related Switches all hardware-related CPUs\n"
+msgstr ""
+" -r, --related Modifica tutte le CPU coordinate dall'hardware\n"
+
+#: utils/set.c:45
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Stampa questa schermata\n"
+
+#: utils/set.c:47
+#, c-format
+msgid ""
+"Notes:\n"
+"1. Omitting the -c or --cpu argument is equivalent to setting it to zero\n"
+"2. The -f FREQ, --freq FREQ parameter cannot be combined with any other "
+"parameter\n"
+" except the -c CPU, --cpu CPU parameter\n"
+"3. FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz\n"
+" by postfixing the value with the wanted unit name, without any space\n"
+" (FREQuency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+msgstr ""
+"Note:\n"
+"1. Omettere l'opzione -c o --cpu è equivalente a impostarlo a 0\n"
+"2. l'opzione -f FREQ, --freq FREQ non può essere specificata con altre "
+"opzioni\n"
+" ad eccezione dell'opzione -c CPU o --cpu CPU\n"
+"3. le FREQuenze possono essere specuficate in Hz, kHz (default), MHz, GHz, "
+"or THz\n"
+" postponendo l'unità di misura al valore senza nessuno spazio fra loro\n"
+" (FREQuenza in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+
+#: utils/set.c:69
+#, c-format
+msgid ""
+"Error setting new values. Common errors:\n"
+"- Do you have proper administration rights? (super-user?)\n"
+"- Is the governor you requested available and modprobed?\n"
+"- Trying to set an invalid policy?\n"
+"- Trying to set a specific frequency, but userspace governor is not "
+"available,\n"
+" for example because of hardware which cannot be set to a specific "
+"frequency\n"
+" or because the userspace governor isn't loaded?\n"
+msgstr ""
+"Si sono verificati degli errori impostando i nuovi valori.\n"
+"Alcuni errori comuni possono essere:\n"
+"- Hai i necessari diritti di amministrazione? (super-user?)\n"
+"- Il gestore che hai richiesto è disponibile e caricato?\n"
+"- Stai provando ad impostare una politica di gestione non valida?\n"
+"- Stai provando a impostare una specifica frequenza ma il gestore\n"
+" userspace non è disponibile, per esempio a causa dell'hardware\n"
+" che non supporta frequenze fisse o a causa del fatto che\n"
+" il gestore userspace non è caricato?\n"
+
+#: utils/set.c:183
+#, c-format
+msgid "wrong, unknown or unhandled CPU?\n"
+msgstr "CPU errata, sconosciuta o non gestita?\n"
+
+#: utils/set.c:336
+#, c-format
+msgid ""
+"the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
+"-g/--governor parameters\n"
+msgstr ""
+"l'opzione -f/--freq non può venire combinata con i parametri\n"
+" -d/--min, -u/--max o -g/--governor\n"
+
+#: utils/set.c:342
+#, c-format
+msgid ""
+"At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
+"-g/--governor must be passed\n"
+msgstr ""
+"Almeno una delle opzioni -f/--freq, -d/--min, -u/--max, e -g/--governor\n"
+"deve essere specificata\n"
+
+#, fuzzy
+#~ msgid " CPUs which coordinate software frequency requirements: "
+#~ msgstr ""
+#~ " CPU per le quali e` necessario cambiare la frequenza "
+#~ "contemporaneamente: "
--- /dev/null
+# Brazilian Portuguese translations for cpufrequtils package
+# Copyright (C) 2008 THE cpufrequtils'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the cpufrequtils package.
+# Claudio Eduardo <claudioeddy@gmail.com>, 2009.
+#
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: cpufrequtils 004\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2009-08-09 11:53+0200\n"
+"PO-Revision-Date: 2008-06-14 22:16-0400\n"
+"Last-Translator: Claudio Eduardo <claudioeddy@gmail.com>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+
+#: utils/info.c:36
+#, c-format
+msgid "Couldn't count the number of CPUs (%s: %s), assuming 1\n"
+msgstr "Não foi possível contar o número de CPUs (%s: %s), assumindo 1\n"
+
+#: utils/info.c:68
+#, c-format
+msgid ""
+" minimum CPU frequency - maximum CPU frequency - governor\n"
+msgstr ""
+" frequência mínina do CPU - frequência máxima do CPU - "
+"regulador\n"
+
+#: utils/info.c:156
+#, c-format
+msgid "couldn't analyze CPU %d as it doesn't seem to be present\n"
+msgstr ""
+"não foi possível analisar o CPU % já que o mesmo parece não estar presente\n"
+
+#: utils/info.c:160
+#, c-format
+msgid "analyzing CPU %d:\n"
+msgstr "analisando o CPU %d:\n"
+
+#: utils/info.c:167
+#, c-format
+msgid " no or unknown cpufreq driver is active on this CPU\n"
+msgstr " nenhum ou driver do cpufreq deconhecido está ativo nesse CPU\n"
+
+#: utils/info.c:169
+#, c-format
+msgid " driver: %s\n"
+msgstr " driver: %s\n"
+
+#: utils/info.c:175
+#, c-format
+msgid " CPUs which run at the same hardware frequency: "
+msgstr " CPUs que rodam na mesma frequência de hardware: "
+
+#: utils/info.c:186
+#, c-format
+msgid " CPUs which need to have their frequency coordinated by software: "
+msgstr " CPUs que precisam ter suas frequências coordenadas por software: "
+
+#: utils/info.c:197
+#, c-format
+msgid " maximum transition latency: "
+msgstr " maior latência de transição: "
+
+#: utils/info.c:203
+#, c-format
+msgid " hardware limits: "
+msgstr " limites do hardware: "
+
+#: utils/info.c:212
+#, c-format
+msgid " available frequency steps: "
+msgstr " níveis de frequência disponíveis: "
+
+#: utils/info.c:225
+#, c-format
+msgid " available cpufreq governors: "
+msgstr " reguladores do cpufreq disponíveis: "
+
+#: utils/info.c:236
+#, c-format
+msgid " current policy: frequency should be within "
+msgstr " política de frequência atual deve estar entre "
+
+#: utils/info.c:238
+#, c-format
+msgid " and "
+msgstr " e "
+
+#: utils/info.c:242
+#, c-format
+msgid ""
+"The governor \"%s\" may decide which speed to use\n"
+" within this range.\n"
+msgstr ""
+"O regulador \"%s\" deve decidir qual velocidade usar\n"
+" dentro desse limite.\n"
+
+#: utils/info.c:249
+#, c-format
+msgid " current CPU frequency is "
+msgstr " frequência atual do CPU é "
+
+#: utils/info.c:252
+#, c-format
+msgid " (asserted by call to hardware)"
+msgstr " (declarado por chamada ao hardware)"
+
+#: utils/info.c:260
+#, c-format
+msgid " cpufreq stats: "
+msgstr " status do cpufreq: "
+
+#: utils/info.c:440 utils/set.c:31
+#, c-format
+msgid "Report errors and bugs to %s, please.\n"
+msgstr "Reporte erros e bugs para %s, por favor.\n"
+
+#: utils/info.c:444
+#, c-format
+msgid "Usage: cpufreq-info [options]\n"
+msgstr "Uso: cpufreq-info [opções]\n"
+
+#: utils/info.c:445 utils/set.c:37
+#, c-format
+msgid "Options:\n"
+msgstr "Opções:\n"
+
+#: utils/info.c:446
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU CPU number which information shall be determined "
+"about\n"
+msgstr ""
+" -c CPU, --cpu CPU número do CPU sobre o qual as inforções devem ser "
+"determinadas\n"
+
+#: utils/info.c:447
+#, c-format
+msgid " -e, --debug Prints out debug information\n"
+msgstr " -e, --debug Mostra informação de debug\n"
+
+#: utils/info.c:448
+#, c-format
+msgid ""
+" -f, --freq Get frequency the CPU currently runs at, according\n"
+" to the cpufreq core *\n"
+msgstr ""
+" -f, --freq Obtem a frequência na qual o CPU roda no momento, de "
+"acordo\n"
+" com o núcleo do cpufreq *\n"
+
+#: utils/info.c:450
+#, c-format
+msgid ""
+" -w, --hwfreq Get frequency the CPU currently runs at, by reading\n"
+" it from hardware (only available to root) *\n"
+msgstr ""
+" -w, --hwfreq Obtem a frequência na qual o CPU está operando no "
+"momento,\n"
+" através de leitura no hardware (disponível somente "
+"para root) *\n"
+
+#: utils/info.c:452
+#, c-format
+msgid ""
+" -l, --hwlimits Determine the minimum and maximum CPU frequency "
+"allowed *\n"
+msgstr ""
+" -l, --hwlimits Determina a frequência mínima e máxima do CPU "
+"permitida *\n"
+
+#: utils/info.c:453
+#, c-format
+msgid " -d, --driver Determines the used cpufreq kernel driver *\n"
+msgstr ""
+" -d, --driver Determina o driver do kernel do cpufreq usado *\n"
+
+#: utils/info.c:454
+#, c-format
+msgid " -p, --policy Gets the currently used cpufreq policy *\n"
+msgstr ""
+"--p, --policy Obtem a política do cpufreq em uso no momento *\n"
+
+#: utils/info.c:455
+#, c-format
+msgid " -g, --governors Determines available cpufreq governors *\n"
+msgstr ""
+" -g, --governors Determina reguladores do cpufreq disponíveis *\n"
+
+#: utils/info.c:456
+#, c-format
+msgid ""
+" -r, --related-cpus Determines which CPUs run at the same hardware "
+"frequency *\n"
+msgstr ""
+" -r, --related-cpus Determina quais CPUs rodam na mesma frequência de "
+"hardware *\n"
+
+#: utils/info.c:457
+#, c-format
+msgid ""
+" -a, --affected-cpus Determines which CPUs need to have their frequency\n"
+" coordinated by software *\n"
+msgstr ""
+" -a, --affected-cpus Determina quais CPUs precisam ter suas frequências\n"
+" coordenadas por software *\n"
+
+#: utils/info.c:459
+#, c-format
+msgid " -s, --stats Shows cpufreq statistics if available\n"
+msgstr " -s, --stats Mostra estatísticas do cpufreq se disponíveis\n"
+
+#: utils/info.c:460
+#, c-format
+msgid ""
+" -y, --latency Determines the maximum latency on CPU frequency "
+"changes *\n"
+msgstr ""
+" -y, --latency Determina a latência máxima nas trocas de frequência "
+"do CPU *\n"
+
+#: utils/info.c:461
+#, c-format
+msgid ""
+" -o, --proc Prints out information like provided by the /proc/"
+"cpufreq\n"
+" interface in 2.4. and early 2.6. kernels\n"
+msgstr ""
+" -o, --proc Mostra informação do tipo provida pela interface /"
+"proc/cpufreq\n"
+" em kernels 2.4. e mais recentes 2.6\n"
+
+#: utils/info.c:463
+#, c-format
+msgid ""
+" -m, --human human-readable output for the -f, -w, -s and -y "
+"parameters\n"
+msgstr ""
+" -m, --human saída legível para humanos para os parâmetros -f, -w, "
+"-s e -y\n"
+
+#: utils/info.c:464
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Imprime essa tela\n"
+
+#: utils/info.c:467
+#, c-format
+msgid ""
+"If no argument or only the -c, --cpu parameter is given, debug output about\n"
+"cpufreq is printed which is useful e.g. for reporting bugs.\n"
+msgstr ""
+"Se nenhum argumento ou somente o parâmetro -c, --cpu é dado, informação de "
+"debug sobre\n"
+"o cpufreq é mostrada, o que é útil por exemplo para reportar bugs.\n"
+
+#: utils/info.c:469
+#, c-format
+msgid ""
+"For the arguments marked with *, omitting the -c or --cpu argument is\n"
+"equivalent to setting it to zero\n"
+msgstr ""
+"Para os argumentos marcados com *, omitir o argumento -c ou --cpu é\n"
+"equivalente a setá-lo como zero\n"
+
+#: utils/info.c:563
+#, c-format
+msgid ""
+"The argument passed to this tool can't be combined with passing a --cpu "
+"argument\n"
+msgstr ""
+"O argumento usado pra essa ferramenta não pode ser combinado com um "
+"argumento --cpu\n"
+
+#: utils/info.c:576
+#, c-format
+msgid ""
+"You can't specify more than one --cpu parameter and/or\n"
+"more than one output-specific argument\n"
+msgstr ""
+"Você não pode especificar mais do que um parâmetro --cpu e/ou\n"
+"mais do que um argumento de saída específico\n"
+
+#: utils/info.c:582 utils/set.c:95
+#, c-format
+msgid "invalid or unknown argument\n"
+msgstr "argumento inválido ou desconhecido\n"
+
+#: utils/set.c:36
+#, c-format
+msgid "Usage: cpufreq-set [options]\n"
+msgstr "Uso: cpufreq-set [opções]\n"
+
+#: utils/set.c:38
+#, c-format
+msgid ""
+" -c CPU, --cpu CPU number of CPU where cpufreq settings shall be "
+"modified\n"
+msgstr ""
+" -c CPU, --cpu CPU número do CPU onde as configurações do cpufreq "
+"vão ser modificadas\n"
+
+#: utils/set.c:39
+#, c-format
+msgid ""
+" -d FREQ, --min FREQ new minimum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -d FREQ, --min FREQ nova frequência mínima do CPU que o regulador "
+"deve selecionar\n"
+
+#: utils/set.c:40
+#, c-format
+msgid ""
+" -u FREQ, --max FREQ new maximum CPU frequency the governor may "
+"select\n"
+msgstr ""
+" -u FREQ, --max FREQ nova frequência máxima do CPU que o regulador "
+"deve escolher\n"
+
+#: utils/set.c:41
+#, c-format
+msgid " -g GOV, --governor GOV new cpufreq governor\n"
+msgstr " -g GOV, --governor GOV novo regulador do cpufreq\n"
+
+#: utils/set.c:42
+#, c-format
+msgid ""
+" -f FREQ, --freq FREQ specific frequency to be set. Requires userspace\n"
+" governor to be available and loaded\n"
+msgstr ""
+" -f FREQ, --freq FREQ frequência específica para ser setada. Necessita "
+"que o regulador em\n"
+" nível de usuário esteja disponível e carregado\n"
+
+#: utils/set.c:44
+#, c-format
+msgid " -r, --related Switches all hardware-related CPUs\n"
+msgstr ""
+" -r, --related Modifica todos os CPUs relacionados ao hardware\n"
+
+#: utils/set.c:45
+#, c-format
+msgid " -h, --help Prints out this screen\n"
+msgstr " -h, --help Mostra essa tela\n"
+
+#: utils/set.c:47
+#, c-format
+msgid ""
+"Notes:\n"
+"1. Omitting the -c or --cpu argument is equivalent to setting it to zero\n"
+"2. The -f FREQ, --freq FREQ parameter cannot be combined with any other "
+"parameter\n"
+" except the -c CPU, --cpu CPU parameter\n"
+"3. FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz\n"
+" by postfixing the value with the wanted unit name, without any space\n"
+" (FREQuency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+msgstr ""
+"Notas:\n"
+"1. Omitir o argumento -c or --cpu é equivalente a setá-lo como zero\n"
+"2. O parâmetro -f FREQ, --freq FREQ não pode ser combinado com qualquer "
+"outro parâmetro\n"
+" exceto com o parâmetro -c CPU, --cpu CPU\n"
+"3. FREQuências podem ser usadas em Hz, kHz (padrão), MHz, GHz, o THz\n"
+" colocando o nome desejado da unidade após o valor, sem qualquer espaço\n"
+" (FREQuência em kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"
+
+#: utils/set.c:69
+#, c-format
+msgid ""
+"Error setting new values. Common errors:\n"
+"- Do you have proper administration rights? (super-user?)\n"
+"- Is the governor you requested available and modprobed?\n"
+"- Trying to set an invalid policy?\n"
+"- Trying to set a specific frequency, but userspace governor is not "
+"available,\n"
+" for example because of hardware which cannot be set to a specific "
+"frequency\n"
+" or because the userspace governor isn't loaded?\n"
+msgstr ""
+"Erro ao setar novos valores. Erros comuns:\n"
+"- Você tem direitos administrativos necessários? (super-usuário?)\n"
+"- O regulador que você requesitou está disponível e foi \"modprobed\"?\n"
+"- Tentando setar uma política inválida?\n"
+"- Tentando setar uma frequência específica, mas o regulador em nível de "
+"usuário não está disponível,\n"
+" por exemplo devido ao hardware que não pode ser setado pra uma frequência "
+"específica\n"
+" ou porque o regulador em nível de usuário não foi carregado?\n"
+
+#: utils/set.c:183
+#, c-format
+msgid "wrong, unknown or unhandled CPU?\n"
+msgstr "CPU errado, desconhecido ou inesperado?\n"
+
+#: utils/set.c:336
+#, c-format
+msgid ""
+"the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
+"-g/--governor parameters\n"
+msgstr ""
+"o parâmetro -f/--freq não pode ser combinado com os parâmetros -d/--min, -"
+"u/--max ou\n"
+"-g/--governor\n"
+
+#: utils/set.c:342
+#, c-format
+msgid ""
+"At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
+"-g/--governor must be passed\n"
+msgstr ""
+"Pelo menos um parâmetro entre -f/--freq, -d/--min, -u/--max, e\n"
+"-g/--governor deve ser usado\n"
--- /dev/null
+/*
+ * Copyright (C) 2009 Thomas Renninger <trenn@suse.de>, Novell Inc.
+ *
+ * Inspired by these projects:
+ * cpuid (by Todd Allen)
+ * msr-tools (by H. Peter Anvin <hpa@zytor.com>)
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ *
+ *
+ * What does this program do:
+ *
+ * On latest processors exist two MSR registers refered to as:
+ * - MPERF increasing with maxium (P0) frequency in C0
+ * - APERF increasing with current/actual frequency in C0
+ *
+ * From this information the average frequency over a time period can be
+ * calculated and this is what this tool does.
+ *
+ * A nice falloff feature beside the average frequency is the time
+ * a processor core remained in C0 (working state) or any CX (sleep state)
+ * processor sleep state during the measured time period. This information
+ * can be determined from the fact that MPERF only increases in C0 state.
+ *
+ * Note: There were kernels which reset MPERF/APERF registers to 0.
+ * This got reverted by git commit
+ * 18b2646fe3babeb40b34a0c1751e0bf5adfdc64c
+ * which was commited to 2.6.30-rcX mainline kernels
+ * For kernels where the kernel rests MPERF/APERF registers to 0,
+ * this tool will not work. It cannot be detected whether this happened.
+ *
+ * Possible ToDos/Enhancments:
+ *
+ * - Refresh the screen when mulitple cpus are poked and display results
+ * on one screen
+ * -This would introduce a lot more complexity, not sure whether it's
+ * wanted/needed. I'd vote to better not do that.
+ * - Manpage
+ * - Translations
+ * - ...
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <stdint.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <string.h>
+
+#include "cpufreq.h"
+#include "cpuid.h"
+
+#define MSR_IA32_APERF 0x000000E8
+#define MSR_IA32_MPERF 0x000000E7
+
+struct avg_perf_cpu_info
+{
+ unsigned long max_freq;
+ uint64_t saved_aperf;
+ uint64_t saved_mperf;
+ uint32_t is_valid:1;
+};
+
+static int cpu_has_effective_freq()
+{
+ /* largest base level */
+ if (cpuid_eax(0) < 6)
+ return 0;
+
+ return cpuid_ecx(6) & 0x1;
+}
+
+/*
+ * read_msr
+ *
+ * Will return 0 on success and -1 on failure.
+ * Possible errno values could be:
+ * EFAULT -If the read/write did not fully complete
+ * EIO -If the CPU does not support MSRs
+ * ENXIO -If the CPU does not exist
+ */
+
+static int read_msr(int cpu, unsigned int idx, unsigned long long *val)
+{
+ int fd;
+ char msr_file_name[64];
+
+ sprintf(msr_file_name, "/dev/cpu/%d/msr", cpu);
+ fd = open(msr_file_name, O_RDONLY);
+ if (fd < 0)
+ return -1;
+ if (lseek(fd, idx, SEEK_CUR) == -1)
+ goto err;
+ if (read(fd, val, sizeof val) != sizeof *val)
+ goto err;
+ close(fd);
+ return 0;
+ err:
+ close(fd);
+ return -1;
+}
+
+/*
+ * get_aperf_mperf()
+ *
+ * Returns the current aperf/mperf MSR values of cpu
+ */
+static int get_aperf_mperf(unsigned int cpu, uint64_t *aperf, uint64_t *mperf)
+{
+ int retval;
+
+ retval = read_msr(cpu, MSR_IA32_APERF, (unsigned long long*)aperf);
+ if (retval < 0)
+ return retval;
+
+ retval = read_msr(cpu, MSR_IA32_MPERF, (unsigned long long*)mperf);
+ if (retval < 0)
+ return retval;
+ return 0;
+}
+
+/*
+ * get_average_perf()
+ *
+ * Returns the average performance (also considers boosted frequencies)
+ *
+ * Input:
+ * aperf_diff: Difference of the aperf register over a time period
+ * mperf_diff: Difference of the mperf register over the same time period
+ * max_freq: Maximum frequency (P0)
+ *
+ * Returns:
+ * Average performance over the time period
+ */
+static unsigned long get_average_perf(unsigned long max_freq,
+ uint64_t aperf_diff,
+ uint64_t mperf_diff)
+{
+ unsigned int perf_percent = 0;
+ if (((unsigned long)(-1) / 100) < aperf_diff) {
+ int shift_count = 7;
+ aperf_diff >>= shift_count;
+ mperf_diff >>= shift_count;
+ }
+ perf_percent = (aperf_diff * 100) / mperf_diff;
+ return (max_freq * perf_percent) / 100;
+}
+
+/*
+ * get_C_state_time()
+ *
+ * Calculates the time the processor was in C0 and Cx processor sleep states
+ *
+ * As mperf does only tick in C0 at maximum frequency, this is a nice "falloff"
+ * functionality and more accurate than powertop or other kernel timer based
+ * C-state measurings (and can be used to verify whether they are correct.
+ *
+ * Input:
+ * time_diff: The time passed for which the mperf_diff was calulcated on
+ * mperf_diff: The value the mperf register increased during time_diff
+ * max_freq: Maximum frequency of the processor (P0) in kHz
+ *
+ * Output:
+ * C0_time: The time the processor was in C0
+ * CX_time: The time the processor was in CX
+ * percent: Percentage the processor stayed in C0
+ */
+static int get_C_state_time(struct timeval time_diff, uint64_t mperf_diff,
+ unsigned long max_freq,
+ struct timeval *C0_time, struct timeval *CX_time,
+ unsigned int *percent)
+{
+ unsigned long long overall_msecs, expected_ticks, c0_time, cx_time;
+
+ overall_msecs = (time_diff.tv_sec * 1000 * 1000 + time_diff.tv_usec)
+ / 1000;
+
+ expected_ticks = max_freq * overall_msecs;
+ *percent = (mperf_diff * 100) / expected_ticks;
+
+ cx_time = (expected_ticks - mperf_diff) / max_freq;
+ c0_time = mperf_diff / max_freq;
+
+ CX_time->tv_sec = cx_time / 1000;
+ CX_time->tv_usec = cx_time % 1000;
+ C0_time->tv_sec = c0_time / 1000;
+ C0_time->tv_usec = c0_time % 1000;
+ return 0;
+}
+
+static int get_measure_start_info(unsigned int cpu,
+ struct avg_perf_cpu_info *cpu_info)
+{
+ unsigned long min, max;
+ uint64_t aperf, mperf;
+ int ret;
+
+ cpu_info->is_valid = 0;
+
+ if (cpufreq_get_hardware_limits(cpu, &min, &max))
+ return -EINVAL;
+
+ cpu_info->max_freq = max;
+
+ ret = get_aperf_mperf(cpu, &aperf, &mperf);
+ if (ret < 0)
+ return -EINVAL;
+
+ cpu_info->saved_aperf = aperf;
+ cpu_info->saved_mperf = mperf;
+ cpu_info->is_valid = 1;
+
+ return 0;
+}
+
+static void print_cpu_stats(unsigned long average, struct timeval c0_time,
+ struct timeval cx_time, unsigned int c0_percent)
+{
+ printf("%.7lu\t\t\t", average);
+ printf("%.2lu sec %.3lu ms\t", c0_time.tv_sec, c0_time.tv_usec);
+ printf("%.2lu sec %.3lu ms\t", cx_time.tv_sec, cx_time.tv_usec);
+ printf("%.2u", c0_percent);
+}
+
+static int do_measuring_on_cpu(int sleep_time, int once, int cpu)
+{
+ int ret;
+ unsigned long average;
+ unsigned int c0_percent;
+ struct timeval start_time, current_time, diff_time, C0_time, CX_time;
+ uint64_t current_aperf, current_mperf, mperf_diff, aperf_diff;
+ struct avg_perf_cpu_info cpu_info;
+
+ ret = get_measure_start_info(cpu, &cpu_info);
+ if (ret)
+ return ret;
+
+ while(1) {
+ gettimeofday(&start_time, NULL);
+ sleep(sleep_time);
+ /* ToDo: just add a second on the timeval struct? */
+ gettimeofday(¤t_time, NULL);
+ timersub(¤t_time, &start_time, &diff_time);
+ memcpy(&start_time, ¤t_time,
+ sizeof(struct timeval));
+
+ if (!cpu_info.is_valid)
+ continue;
+
+ printf("%.3u\t", cpu);
+
+ ret = get_aperf_mperf(cpu, ¤t_aperf, ¤t_mperf);
+ if (ret < 0) {
+ printf("[offline]\n");
+ continue;
+ }
+
+ mperf_diff = current_mperf - cpu_info.saved_mperf;
+ aperf_diff = current_aperf - cpu_info.saved_aperf;
+
+ get_C_state_time(diff_time, mperf_diff,
+ cpu_info.max_freq,
+ &C0_time, &CX_time,
+ &c0_percent);
+ average = get_average_perf(cpu_info.max_freq,
+ aperf_diff, mperf_diff);
+ cpu_info.saved_mperf = current_mperf;
+ cpu_info.saved_aperf = current_aperf;
+ print_cpu_stats(average, C0_time, CX_time, c0_percent);
+
+ if (once) {
+ printf("\n");
+ break;
+ } else {
+ printf("\r");
+ fflush(stdout);
+ }
+ }
+ return 0;
+}
+
+static int do_measure_all_cpus(int sleep_time, int once)
+{
+ int ret;
+ unsigned long average;
+ unsigned int c0_percent, cpus, cpu;
+ struct timeval start_time, current_time, diff_time, C0_time, CX_time;
+ uint64_t current_aperf, current_mperf, mperf_diff, aperf_diff;
+ struct avg_perf_cpu_info *cpu_list;
+
+ cpus = sysconf(_SC_NPROCESSORS_CONF);
+
+ cpu_list = (struct avg_perf_cpu_info*)
+ malloc(cpus * sizeof (struct avg_perf_cpu_info));
+
+ for (cpu = 0; cpu < cpus; cpu++) {
+ ret = get_measure_start_info(cpu, &cpu_list[cpu]);
+ if (ret)
+ continue;
+ }
+
+ while(1) {
+ gettimeofday(&start_time, NULL);
+ sleep(sleep_time);
+ /* ToDo: Just add a second on the timeval struct?
+ Would save one gettimeofday, but would not
+ be that accurate anymore
+ */
+ gettimeofday(¤t_time, NULL);
+ timersub(¤t_time, &start_time, &diff_time);
+ memcpy(&start_time, ¤t_time,
+ sizeof(struct timeval));
+
+ for (cpu = 0; cpu < cpus; cpu++) {
+
+ printf("%.3u\t", cpu);
+
+ ret = get_aperf_mperf(cpu, ¤t_aperf,
+ ¤t_mperf);
+
+ if ((ret < 0) || !cpu_list[cpu].is_valid) {
+ printf("[offline]\n");
+ continue;
+ }
+
+ mperf_diff = current_mperf - cpu_list[cpu].saved_mperf;
+ aperf_diff = current_aperf - cpu_list[cpu].saved_aperf;
+
+ get_C_state_time(diff_time, mperf_diff,
+ cpu_list[cpu].max_freq,
+ &C0_time, &CX_time,
+ &c0_percent);
+ average = get_average_perf(cpu_list[cpu].max_freq,
+ aperf_diff, mperf_diff);
+ cpu_list[cpu].saved_mperf = current_mperf;
+ cpu_list[cpu].saved_aperf = current_aperf;
+ print_cpu_stats(average, C0_time, CX_time, c0_percent);
+ printf("\n");
+ }
+ if (once)
+ break;
+ printf("\n");
+ }
+ return 0;
+}
+
+
+/******* Options parsing, main ********/
+
+static struct option long_options[] = {
+ { "help", 0, 0, 'h' },
+ { "intervall", 1, 0, 'i' },
+ { "cpu", 1, 0, 'c' },
+ { "once", 0, 0, 'o' },
+ { 0, 0, 0, 0 }
+};
+
+static void usage(void) {
+ printf("cpufreq-aperf [OPTIONS]\n\n"
+ "-c [ --cpu ] CPU "
+ "The CPU core to measure - default all cores\n"
+ "-i [ --intervall ] seconds "
+ "Refresh rate - default 1 second\n"
+ "-o [ --once ] "
+ "Exit after one intervall\n"
+ "-h [ --help ] "
+ "This help text\n"
+ "The msr driver must be loaded for this command to work\n");
+}
+
+int main(int argc, char *argv[])
+{
+ int c, ret, cpu = -1;
+ int sleep_time = 1, once = 0;
+ const char *msr_path = "/dev/cpu/0/msr";
+
+ while ( (c = getopt_long(argc,argv,"c:ohi:",long_options,
+ NULL)) != -1 ) {
+ switch ( c ) {
+ case 'o':
+ once = 1;
+ break;
+ case 'c':
+ cpu = atoi(optarg);
+ break;
+ case 'h':
+ usage();
+ exit(0);
+ case 'i':
+ sleep_time = atoi(optarg);
+ break;
+ }
+ }
+
+ if (getuid() != 0) {
+ fprintf(stderr, "You must be root\n");
+ return EXIT_FAILURE;
+ }
+
+ if (!cpu_has_effective_freq()) {
+ fprintf(stderr, "CPU doesn't support APERF/MPERF\n");
+ return EXIT_FAILURE;
+ }
+
+ ret = access(msr_path, R_OK);
+ if (ret < 0) {
+ fprintf(stderr, "Error reading %s, load/enable msr.ko\n", msr_path);
+ goto out;
+ }
+
+ printf("CPU\tAverage freq(KHz)\tTime in C0\tTime in"
+ " Cx\tC0 percentage\n");
+
+ if (cpu == -1)
+ ret = do_measure_all_cpus(sleep_time, once);
+ else
+ ret = do_measuring_on_cpu(sleep_time, once, cpu);
+
+out:
+ return ret;
+}
+/******* Options parsing, main ********/
--- /dev/null
+#ifndef _CPUFREQ_CPUID_H
+#define _CPUFREQ_CPUID_H
+
+static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ /* ecx is often an input as well as an output. */
+ asm volatile("cpuid"
+ : "=a" (*eax),
+ "=b" (*ebx),
+ "=c" (*ecx),
+ "=d" (*edx)
+ : "0" (*eax), "2" (*ecx));
+}
+static inline void cpuid(unsigned int op,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ *eax = op;
+ *ecx = 0;
+ __cpuid(eax, ebx, ecx, edx);
+}
+
+/*
+ * CPUID functions returning a single datum
+ */
+static inline unsigned int cpuid_eax(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return eax;
+}
+
+static inline unsigned int cpuid_ebx(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return ebx;
+}
+
+static inline unsigned int cpuid_ecx(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return ecx;
+}
+
+static inline unsigned int cpuid_edx(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return edx;
+}
+
+#endif /* _CPUFREQ_CPUID_H */
--- /dev/null
+/*
+ * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ */
+
+
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libintl.h>
+#include <locale.h>
+
+#include <getopt.h>
+
+#include "cpufreq.h"
+
+
+#define _(String) gettext (String)
+#define gettext_noop(String) String
+#define N_(String) gettext_noop (String)
+
+#define LINE_LEN 10
+
+static unsigned int count_cpus(void)
+{
+ FILE *fp;
+ char value[LINE_LEN];
+ unsigned int ret = 0;
+ unsigned int cpunr = 0;
+
+ fp = fopen("/proc/stat", "r");
+ if(!fp) {
+ printf(gettext("Couldn't count the number of CPUs (%s: %s), assuming 1\n"), "/proc/stat", strerror(errno));
+ return 1;
+ }
+
+ while (!feof(fp)) {
+ if (!fgets(value, LINE_LEN, fp))
+ continue;
+ value[LINE_LEN - 1] = '\0';
+ if (strlen(value) < (LINE_LEN - 2))
+ continue;
+ if (strstr(value, "cpu "))
+ continue;
+ if (sscanf(value, "cpu%d ", &cpunr) != 1)
+ continue;
+ if (cpunr > ret)
+ ret = cpunr;
+ }
+ fclose(fp);
+
+ /* cpu count starts from 0, on error return 1 (UP) */
+ return (ret+1);
+}
+
+
+static void proc_cpufreq_output(void)
+{
+ unsigned int cpu, nr_cpus;
+ struct cpufreq_policy *policy;
+ unsigned int min_pctg = 0;
+ unsigned int max_pctg = 0;
+ unsigned long min, max;
+
+ printf(gettext(" minimum CPU frequency - maximum CPU frequency - governor\n"));
+
+ nr_cpus = count_cpus();
+ for (cpu=0; cpu < nr_cpus; cpu++) {
+ policy = cpufreq_get_policy(cpu);
+ if (!policy)
+ continue;
+
+ if (cpufreq_get_hardware_limits(cpu, &min, &max)) {
+ max = 0;
+ } else {
+ min_pctg = (policy->min * 100) / max;
+ max_pctg = (policy->max * 100) / max;
+ }
+ printf("CPU%3d %9lu kHz (%3d %%) - %9lu kHz (%3d %%) - %s\n",
+ cpu , policy->min, max ? min_pctg : 0, policy->max, max ? max_pctg : 0, policy->governor);
+
+ cpufreq_put_policy(policy);
+ }
+}
+
+static void print_speed(unsigned long speed)
+{
+ unsigned long tmp;
+
+ if (speed > 1000000) {
+ tmp = speed % 10000;
+ if (tmp >= 5000)
+ speed += 10000;
+ printf ("%u.%02u GHz", ((unsigned int) speed/1000000),
+ ((unsigned int) (speed%1000000)/10000));
+ } else if (speed > 100000) {
+ tmp = speed % 1000;
+ if (tmp >= 500)
+ speed += 1000;
+ printf ("%u MHz", ((unsigned int) speed / 1000));
+ } else if (speed > 1000) {
+ tmp = speed % 100;
+ if (tmp >= 50)
+ speed += 100;
+ printf ("%u.%01u MHz", ((unsigned int) speed/1000),
+ ((unsigned int) (speed%1000)/100));
+ } else
+ printf ("%lu kHz", speed);
+
+ return;
+}
+
+static void print_duration(unsigned long duration)
+{
+ unsigned long tmp;
+
+ if (duration > 1000000) {
+ tmp = duration % 10000;
+ if (tmp >= 5000)
+ duration += 10000;
+ printf ("%u.%02u ms", ((unsigned int) duration/1000000),
+ ((unsigned int) (duration%1000000)/10000));
+ } else if (duration > 100000) {
+ tmp = duration % 1000;
+ if (tmp >= 500)
+ duration += 1000;
+ printf ("%u us", ((unsigned int) duration / 1000));
+ } else if (duration > 1000) {
+ tmp = duration % 100;
+ if (tmp >= 50)
+ duration += 100;
+ printf ("%u.%01u us", ((unsigned int) duration/1000),
+ ((unsigned int) (duration%1000)/100));
+ } else
+ printf ("%lu ns", duration);
+
+ return;
+}
+
+static void debug_output_one(unsigned int cpu)
+{
+ char *driver;
+ struct cpufreq_affected_cpus *cpus;
+ struct cpufreq_available_frequencies *freqs;
+ unsigned long min, max, freq_kernel, freq_hardware;
+ unsigned long total_trans, latency;
+ unsigned long long total_time;
+ struct cpufreq_policy *policy;
+ struct cpufreq_available_governors * governors;
+ struct cpufreq_stats *stats;
+
+ if (cpufreq_cpu_exists(cpu)) {
+ printf(gettext ("couldn't analyze CPU %d as it doesn't seem to be present\n"), cpu);
+ return;
+ }
+
+ printf(gettext ("analyzing CPU %d:\n"), cpu);
+
+ freq_kernel = cpufreq_get_freq_kernel(cpu);
+ freq_hardware = cpufreq_get_freq_hardware(cpu);
+
+ driver = cpufreq_get_driver(cpu);
+ if (!driver) {
+ printf(gettext (" no or unknown cpufreq driver is active on this CPU\n"));
+ } else {
+ printf(gettext (" driver: %s\n"), driver);
+ cpufreq_put_driver(driver);
+ }
+
+ cpus = cpufreq_get_related_cpus(cpu);
+ if (cpus) {
+ printf(gettext (" CPUs which run at the same hardware frequency: "));
+ while (cpus->next) {
+ printf("%d ", cpus->cpu);
+ cpus = cpus->next;
+ }
+ printf("%d\n", cpus->cpu);
+ cpufreq_put_related_cpus(cpus);
+ }
+
+ cpus = cpufreq_get_affected_cpus(cpu);
+ if (cpus) {
+ printf(gettext (" CPUs which need to have their frequency coordinated by software: "));
+ while (cpus->next) {
+ printf("%d ", cpus->cpu);
+ cpus = cpus->next;
+ }
+ printf("%d\n", cpus->cpu);
+ cpufreq_put_affected_cpus(cpus);
+ }
+
+ latency = cpufreq_get_transition_latency(cpu);
+ if (latency) {
+ printf(gettext (" maximum transition latency: "));
+ print_duration(latency);
+ printf(".\n");
+ }
+
+ if (!(cpufreq_get_hardware_limits(cpu, &min, &max))) {
+ printf(gettext (" hardware limits: "));
+ print_speed(min);
+ printf(" - ");
+ print_speed(max);
+ printf("\n");
+ }
+
+ freqs = cpufreq_get_available_frequencies(cpu);
+ if (freqs) {
+ printf(gettext (" available frequency steps: "));
+ while (freqs->next) {
+ print_speed(freqs->frequency);
+ printf(", ");
+ freqs = freqs->next;
+ }
+ print_speed(freqs->frequency);
+ printf("\n");
+ cpufreq_put_available_frequencies(freqs);
+ }
+
+ governors = cpufreq_get_available_governors(cpu);
+ if (governors) {
+ printf(gettext (" available cpufreq governors: "));
+ while (governors->next) {
+ printf("%s, ", governors->governor);
+ governors = governors->next;
+ }
+ printf("%s\n", governors->governor);
+ cpufreq_put_available_governors(governors);
+ }
+
+ policy = cpufreq_get_policy(cpu);
+ if (policy) {
+ printf(gettext (" current policy: frequency should be within "));
+ print_speed(policy->min);
+ printf(gettext (" and "));
+ print_speed(policy->max);
+
+ printf(".\n ");
+ printf(gettext ("The governor \"%s\" may"
+ " decide which speed to use\n within this range.\n"),
+ policy->governor);
+ cpufreq_put_policy(policy);
+ }
+
+ if (freq_kernel || freq_hardware) {
+ printf(gettext (" current CPU frequency is "));
+ if (freq_hardware) {
+ print_speed(freq_hardware);
+ printf(gettext (" (asserted by call to hardware)"));
+ }
+ else
+ print_speed(freq_kernel);
+ printf(".\n");
+ }
+ stats = cpufreq_get_stats(cpu, &total_time);
+ if (stats) {
+ printf(gettext (" cpufreq stats: "));
+ while (stats) {
+ print_speed(stats->frequency);
+ printf(":%.2f%%", (100.0 * stats->time_in_state) / total_time);
+ stats = stats->next;
+ if (stats)
+ printf(", ");
+ }
+ cpufreq_put_stats(stats);
+ total_trans = cpufreq_get_transitions(cpu);
+ if (total_trans)
+ printf(" (%lu)\n", total_trans);
+ else
+ printf("\n");
+ }
+}
+
+static void debug_output(unsigned int cpu, unsigned int all) {
+ if (all) {
+ unsigned int nr_cpus = count_cpus();
+ for (cpu=0; cpu < nr_cpus; cpu++) {
+ if (cpufreq_cpu_exists(cpu))
+ continue;
+ debug_output_one(cpu);
+ }
+ } else
+ debug_output_one(cpu);
+}
+
+
+/* --freq / -f */
+
+static int get_freq_kernel(unsigned int cpu, unsigned int human) {
+ unsigned long freq = cpufreq_get_freq_kernel(cpu);
+ if (!freq)
+ return -EINVAL;
+ if (human) {
+ print_speed(freq);
+ printf("\n");
+ } else
+ printf("%lu\n", freq);
+ return 0;
+}
+
+
+/* --hwfreq / -w */
+
+static int get_freq_hardware(unsigned int cpu, unsigned int human) {
+ unsigned long freq = cpufreq_get_freq_hardware(cpu);
+ if (!freq)
+ return -EINVAL;
+ if (human) {
+ print_speed(freq);
+ printf("\n");
+ } else
+ printf("%lu\n", freq);
+ return 0;
+}
+
+/* --hwlimits / -l */
+
+static int get_hardware_limits(unsigned int cpu) {
+ unsigned long min, max;
+ if (cpufreq_get_hardware_limits(cpu, &min, &max))
+ return -EINVAL;
+ printf("%lu %lu\n", min, max);
+ return 0;
+}
+
+/* --driver / -d */
+
+static int get_driver(unsigned int cpu) {
+ char *driver = cpufreq_get_driver(cpu);
+ if (!driver)
+ return -EINVAL;
+ printf("%s\n", driver);
+ cpufreq_put_driver(driver);
+ return 0;
+}
+
+/* --policy / -p */
+
+static int get_policy(unsigned int cpu) {
+ struct cpufreq_policy *policy = cpufreq_get_policy(cpu);
+ if (!policy)
+ return -EINVAL;
+ printf("%lu %lu %s\n", policy->min, policy->max, policy->governor);
+ cpufreq_put_policy(policy);
+ return 0;
+}
+
+/* --governors / -g */
+
+static int get_available_governors(unsigned int cpu) {
+ struct cpufreq_available_governors *governors = cpufreq_get_available_governors(cpu);
+ if (!governors)
+ return -EINVAL;
+
+ while (governors->next) {
+ printf("%s ", governors->governor);
+ governors = governors->next;
+ }
+ printf("%s\n", governors->governor);
+ cpufreq_put_available_governors(governors);
+ return 0;
+}
+
+
+/* --affected-cpus / -a */
+
+static int get_affected_cpus(unsigned int cpu) {
+ struct cpufreq_affected_cpus *cpus = cpufreq_get_affected_cpus(cpu);
+ if (!cpus)
+ return -EINVAL;
+
+ while (cpus->next) {
+ printf("%d ", cpus->cpu);
+ cpus = cpus->next;
+ }
+ printf("%d\n", cpus->cpu);
+ cpufreq_put_affected_cpus(cpus);
+ return 0;
+}
+
+/* --related-cpus / -r */
+
+static int get_related_cpus(unsigned int cpu) {
+ struct cpufreq_affected_cpus *cpus = cpufreq_get_related_cpus(cpu);
+ if (!cpus)
+ return -EINVAL;
+
+ while (cpus->next) {
+ printf("%d ", cpus->cpu);
+ cpus = cpus->next;
+ }
+ printf("%d\n", cpus->cpu);
+ cpufreq_put_related_cpus(cpus);
+ return 0;
+}
+
+/* --stats / -s */
+
+static int get_freq_stats(unsigned int cpu, unsigned int human) {
+ unsigned long total_trans = cpufreq_get_transitions(cpu);
+ unsigned long long total_time;
+ struct cpufreq_stats *stats = cpufreq_get_stats(cpu, &total_time);
+ while (stats) {
+ if (human) {
+ print_speed(stats->frequency);
+ printf(":%.2f%%", (100.0 * stats->time_in_state) / total_time);
+ }
+ else
+ printf("%lu:%llu", stats->frequency, stats->time_in_state);
+ stats = stats->next;
+ if (stats)
+ printf(", ");
+ }
+ cpufreq_put_stats(stats);
+ if (total_trans)
+ printf(" (%lu)\n", total_trans);
+ return 0;
+}
+
+/* --latency / -y */
+
+static int get_latency(unsigned int cpu, unsigned int human) {
+ unsigned long latency = cpufreq_get_transition_latency(cpu);
+ if (!latency)
+ return -EINVAL;
+
+ if (human) {
+ print_duration(latency);
+ printf("\n");
+ } else
+ printf("%lu\n", latency);
+ return 0;
+}
+
+static void print_header(void) {
+ printf(PACKAGE " " VERSION ": cpufreq-info (C) Dominik Brodowski 2004-2009\n");
+ printf(gettext ("Report errors and bugs to %s, please.\n"), PACKAGE_BUGREPORT);
+}
+
+static void print_help(void) {
+ printf(gettext ("Usage: cpufreq-info [options]\n"));
+ printf(gettext ("Options:\n"));
+ printf(gettext (" -c CPU, --cpu CPU CPU number which information shall be determined about\n"));
+ printf(gettext (" -e, --debug Prints out debug information\n"));
+ printf(gettext (" -f, --freq Get frequency the CPU currently runs at, according\n"
+ " to the cpufreq core *\n"));
+ printf(gettext (" -w, --hwfreq Get frequency the CPU currently runs at, by reading\n"
+ " it from hardware (only available to root) *\n"));
+ printf(gettext (" -l, --hwlimits Determine the minimum and maximum CPU frequency allowed *\n"));
+ printf(gettext (" -d, --driver Determines the used cpufreq kernel driver *\n"));
+ printf(gettext (" -p, --policy Gets the currently used cpufreq policy *\n"));
+ printf(gettext (" -g, --governors Determines available cpufreq governors *\n"));
+ printf(gettext (" -r, --related-cpus Determines which CPUs run at the same hardware frequency *\n"));
+ printf(gettext (" -a, --affected-cpus Determines which CPUs need to have their frequency\n"
+ " coordinated by software *\n"));
+ printf(gettext (" -s, --stats Shows cpufreq statistics if available\n"));
+ printf(gettext (" -y, --latency Determines the maximum latency on CPU frequency changes *\n"));
+ printf(gettext (" -o, --proc Prints out information like provided by the /proc/cpufreq\n"
+ " interface in 2.4. and early 2.6. kernels\n"));
+ printf(gettext (" -m, --human human-readable output for the -f, -w, -s and -y parameters\n"));
+ printf(gettext (" -h, --help Prints out this screen\n"));
+
+ printf("\n");
+ printf(gettext ("If no argument or only the -c, --cpu parameter is given, debug output about\n"
+ "cpufreq is printed which is useful e.g. for reporting bugs.\n"));
+ printf(gettext ("For the arguments marked with *, omitting the -c or --cpu argument is\n"
+ "equivalent to setting it to zero\n"));
+}
+
+static struct option info_opts[] = {
+ { .name="cpu", .has_arg=required_argument, .flag=NULL, .val='c'},
+ { .name="debug", .has_arg=no_argument, .flag=NULL, .val='e'},
+ { .name="freq", .has_arg=no_argument, .flag=NULL, .val='f'},
+ { .name="hwfreq", .has_arg=no_argument, .flag=NULL, .val='w'},
+ { .name="hwlimits", .has_arg=no_argument, .flag=NULL, .val='l'},
+ { .name="driver", .has_arg=no_argument, .flag=NULL, .val='d'},
+ { .name="policy", .has_arg=no_argument, .flag=NULL, .val='p'},
+ { .name="governors", .has_arg=no_argument, .flag=NULL, .val='g'},
+ { .name="related-cpus", .has_arg=no_argument, .flag=NULL, .val='r'},
+ { .name="affected-cpus",.has_arg=no_argument, .flag=NULL, .val='a'},
+ { .name="stats", .has_arg=no_argument, .flag=NULL, .val='s'},
+ { .name="latency", .has_arg=no_argument, .flag=NULL, .val='y'},
+ { .name="proc", .has_arg=no_argument, .flag=NULL, .val='o'},
+ { .name="human", .has_arg=no_argument, .flag=NULL, .val='m'},
+ { .name="help", .has_arg=no_argument, .flag=NULL, .val='h'},
+};
+
+int main(int argc, char **argv) {
+ extern char *optarg;
+ extern int optind, opterr, optopt;
+ int ret = 0, cont = 1;
+ unsigned int cpu = 0;
+ unsigned int cpu_defined = 0;
+ unsigned int human = 0;
+ int output_param = 0;
+
+ setlocale(LC_ALL, "");
+ textdomain (PACKAGE);
+
+ do {
+ ret = getopt_long(argc, argv, "c:hoefwldpgrasmy", info_opts, NULL);
+ switch (ret) {
+ case '?':
+ output_param = '?';
+ cont = 0;
+ break;
+ case 'h':
+ output_param = 'h';
+ cont = 0;
+ break;
+ case -1:
+ cont = 0;
+ break;
+ case 'o':
+ case 'a':
+ case 'r':
+ case 'g':
+ case 'p':
+ case 'd':
+ case 'l':
+ case 'w':
+ case 'f':
+ case 'e':
+ case 's':
+ case 'y':
+ if (output_param) {
+ output_param = -1;
+ cont = 0;
+ break;
+ }
+ output_param = ret;
+ break;
+ case 'c':
+ if (cpu_defined) {
+ output_param = -1;
+ cont = 0;
+ break;
+ }
+ if ((sscanf(optarg, "%d ", &cpu)) != 1) {
+ output_param = '?';
+ cont = 0;
+ }
+ cpu_defined = 1;
+ break;
+ case 'm':
+ if (human) {
+ output_param = -1;
+ cont = 0;
+ break;
+ }
+ human = 1;
+ break;
+ }
+ } while(cont);
+
+ switch (output_param) {
+ case 'o':
+ if (cpu_defined) {
+ print_header();
+ printf(gettext ("The argument passed to this tool can't be combined with passing a --cpu argument\n"));
+ return -EINVAL;
+ }
+ break;
+ case 0:
+ output_param = 'e';
+ }
+
+ ret = 0;
+
+ switch (output_param) {
+ case -1:
+ print_header();
+ printf(gettext ("You can't specify more than one --cpu parameter and/or\n"
+ "more than one output-specific argument\n"));
+ return -EINVAL;
+ break;
+ case '?':
+ print_header();
+ printf(gettext ("invalid or unknown argument\n"));
+ print_help();
+ ret = -EINVAL;
+ break;
+ case 'h':
+ print_header();
+ print_help();
+ break;
+ case 'o':
+ proc_cpufreq_output();
+ break;
+ case 'e':
+ print_header();
+ debug_output(cpu, !(cpu_defined));
+ break;
+ case 'a':
+ ret = get_affected_cpus(cpu);
+ break;
+ case 'r':
+ ret = get_related_cpus(cpu);
+ break;
+ case 'g':
+ ret = get_available_governors(cpu);
+ break;
+ case 'p':
+ ret = get_policy(cpu);
+ break;
+ case 'd':
+ ret = get_driver(cpu);
+ break;
+ case 'l':
+ ret = get_hardware_limits(cpu);
+ break;
+ case 'w':
+ ret = get_freq_hardware(cpu, human);
+ break;
+ case 'f':
+ ret = get_freq_kernel(cpu, human);
+ break;
+ case 's':
+ ret = get_freq_stats(cpu, human);
+ break;
+ case 'y':
+ ret = get_latency(cpu, human);
+ break;
+ }
+ return (ret);
+}
--- /dev/null
+/*
+ * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de>
+ *
+ * Licensed under the terms of the GNU GPL License version 2.
+ */
+
+
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include <ctype.h>
+#include <libintl.h>
+#include <locale.h>
+
+#include <getopt.h>
+
+#include "cpufreq.h"
+
+#define _(String) gettext(String)
+#define gettext_noop(String) String
+#define N_(String) gettext_noop(String)
+
+#define NORM_FREQ_LEN 32
+
+static void print_header(void)
+{
+ printf(PACKAGE " " VERSION ": cpufreq-set (C) Dominik Brodowski 2004-2009\n");
+ printf(gettext("Report errors and bugs to %s, please.\n"), PACKAGE_BUGREPORT);
+}
+
+static void print_help(void)
+{
+ printf(gettext("Usage: cpufreq-set [options]\n"));
+ printf(gettext("Options:\n"));
+ printf(gettext(" -c CPU, --cpu CPU number of CPU where cpufreq settings shall be modified\n"));
+ printf(gettext(" -d FREQ, --min FREQ new minimum CPU frequency the governor may select\n"));
+ printf(gettext(" -u FREQ, --max FREQ new maximum CPU frequency the governor may select\n"));
+ printf(gettext(" -g GOV, --governor GOV new cpufreq governor\n"));
+ printf(gettext(" -f FREQ, --freq FREQ specific frequency to be set. Requires userspace\n"
+ " governor to be available and loaded\n"));
+ printf(gettext(" -r, --related Switches all hardware-related CPUs\n"));
+ printf(gettext(" -h, --help Prints out this screen\n"));
+ printf("\n");
+ printf(gettext("Notes:\n"
+ "1. Omitting the -c or --cpu argument is equivalent to setting it to zero\n"
+ "2. The -f FREQ, --freq FREQ parameter cannot be combined with any other parameter\n"
+ " except the -c CPU, --cpu CPU parameter\n"
+ "3. FREQuencies can be passed in Hz, kHz (default), MHz, GHz, or THz\n"
+ " by postfixing the value with the wanted unit name, without any space\n"
+ " (FREQuency in kHz =^ Hz * 0.001 =^ MHz * 1000 =^ GHz * 1000000).\n"));
+
+}
+
+static struct option set_opts[] = {
+ { .name="cpu", .has_arg=required_argument, .flag=NULL, .val='c'},
+ { .name="min", .has_arg=required_argument, .flag=NULL, .val='d'},
+ { .name="max", .has_arg=required_argument, .flag=NULL, .val='u'},
+ { .name="governor", .has_arg=required_argument, .flag=NULL, .val='g'},
+ { .name="freq", .has_arg=required_argument, .flag=NULL, .val='f'},
+ { .name="help", .has_arg=no_argument, .flag=NULL, .val='h'},
+ { .name="related", .has_arg=no_argument, .flag=NULL, .val='r'},
+};
+
+static void print_error(void)
+{
+ printf(gettext("Error setting new values. Common errors:\n"
+ "- Do you have proper administration rights? (super-user?)\n"
+ "- Is the governor you requested available and modprobed?\n"
+ "- Trying to set an invalid policy?\n"
+ "- Trying to set a specific frequency, but userspace governor is not available,\n"
+ " for example because of hardware which cannot be set to a specific frequency\n"
+ " or because the userspace governor isn't loaded?\n"));
+};
+
+struct freq_units {
+ char* str_unit;
+ int power_of_ten;
+};
+
+const struct freq_units def_units[] = {
+ {"hz", -3},
+ {"khz", 0}, /* default */
+ {"mhz", 3},
+ {"ghz", 6},
+ {"thz", 9},
+ {NULL, 0}
+};
+
+static void print_unknown_arg(void)
+{
+ print_header();
+ printf(gettext("invalid or unknown argument\n"));
+ print_help();
+}
+
+static unsigned long string_to_frequency(const char *str)
+{
+ char normalized[NORM_FREQ_LEN];
+ const struct freq_units *unit;
+ const char *scan;
+ char *end;
+ unsigned long freq;
+ int power = 0, match_count = 0, i, cp, pad;
+
+ while (*str == '0')
+ str++;
+
+ for (scan = str; isdigit(*scan) || *scan == '.'; scan++) {
+ if (*scan == '.' && match_count == 0)
+ match_count = 1;
+ else if (*scan == '.' && match_count == 1)
+ return 0;
+ }
+
+ if (*scan) {
+ match_count = 0;
+ for (unit = def_units; unit->str_unit; unit++) {
+ for (i = 0;
+ scan[i] && tolower(scan[i]) == unit->str_unit[i];
+ ++i)
+ continue;
+ if (scan[i])
+ continue;
+ match_count++;
+ power = unit->power_of_ten;
+ }
+ if (match_count != 1)
+ return 0;
+ }
+
+ /* count the number of digits to be copied */
+ for (cp = 0; isdigit(str[cp]); cp++)
+ continue;
+
+ if (str[cp] == '.') {
+ while (power > -1 && isdigit(str[cp+1]))
+ cp++, power--;
+ }
+ if (power >= -1) /* not enough => pad */
+ pad = power + 1;
+ else /* to much => strip */
+ pad = 0, cp += power + 1;
+ /* check bounds */
+ if (cp <= 0 || cp + pad > NORM_FREQ_LEN - 1)
+ return 0;
+
+ /* copy digits */
+ for (i = 0; i < cp; i++, str++) {
+ if (*str == '.')
+ str++;
+ normalized[i] = *str;
+ }
+ /* and pad */
+ for (; i < cp + pad; i++)
+ normalized[i] = '0';
+
+ /* round up, down ? */
+ match_count = (normalized[i-1] >= '5');
+ /* and drop the decimal part */
+ normalized[i-1] = 0; /* cp > 0 && pad >= 0 ==> i > 0 */
+
+ /* final conversion (and applying rounding) */
+ errno = 0;
+ freq = strtoul(normalized, &end, 10);
+ if (errno)
+ return 0;
+ else {
+ if (match_count && freq != ULONG_MAX)
+ freq++;
+ return freq;
+ }
+}
+
+static int do_new_policy(unsigned int cpu, struct cpufreq_policy *new_pol)
+{
+ struct cpufreq_policy *cur_pol = cpufreq_get_policy(cpu);
+ int ret;
+
+ if (!cur_pol) {
+ printf(gettext("wrong, unknown or unhandled CPU?\n"));
+ return -EINVAL;
+ }
+
+ if (!new_pol->min)
+ new_pol->min = cur_pol->min;
+
+ if (!new_pol->max)
+ new_pol->max = cur_pol->max;
+
+ if (!new_pol->governor)
+ new_pol->governor = cur_pol->governor;
+
+ ret = cpufreq_set_policy(cpu, new_pol);
+
+ cpufreq_put_policy(cur_pol);
+
+ return ret;
+}
+
+
+static int do_one_cpu(unsigned int cpu, struct cpufreq_policy *new_pol,
+ unsigned long freq, unsigned int pc)
+{
+ switch (pc) {
+ case 0:
+ return cpufreq_set_frequency(cpu, freq);
+
+ case 1:
+ /* if only one value of a policy is to be changed, we can
+ * use a "fast path".
+ */
+ if (new_pol->min)
+ return cpufreq_modify_policy_min(cpu, new_pol->min);
+ else if (new_pol->max)
+ return cpufreq_modify_policy_max(cpu, new_pol->max);
+ else if (new_pol->governor)
+ return cpufreq_modify_policy_governor(cpu, new_pol->governor);
+
+ default:
+ /* slow path */
+ return do_new_policy(cpu, new_pol);
+ }
+}
+
+
+int main(int argc, char **argv)
+{
+ extern char *optarg;
+ extern int optind, opterr, optopt;
+ int ret = 0, cont = 1;
+ unsigned long freq = 0;
+ char gov[20];
+ int double_parm = 0;
+ int related = 0;
+ int policychange = 0;
+ struct cpufreq_policy new_pol = {
+ .min = 0,
+ .max = 0,
+ .governor = NULL,
+ };
+ struct cpufreq_affected_cpus single_cpu = {
+ .cpu = 0,
+ .next = NULL,
+ .first = &single_cpu,
+ };
+ struct cpufreq_affected_cpus *cpus = NULL;
+
+ setlocale(LC_ALL, "");
+ textdomain (PACKAGE);
+
+ /* parameter parsing */
+ do {
+ ret = getopt_long(argc, argv, "c:d:u:g:f:hr", set_opts, NULL);
+ switch (ret) {
+ case '?':
+ print_unknown_arg();
+ return -EINVAL;
+ case 'h':
+ print_header();
+ print_help();
+ return 0;
+ case -1:
+ cont = 0;
+ break;
+ case 'r':
+ if (related)
+ double_parm++;
+ related++;
+ break;
+ case 'c':
+ if (cpus)
+ double_parm++;
+ cpus = &single_cpu;
+ if ((sscanf(optarg, "%d ", &single_cpu.cpu)) != 1) {
+ print_unknown_arg();
+ return -EINVAL;
+ }
+ break;
+ case 'd':
+ if (new_pol.min)
+ double_parm++;
+ policychange++;
+ new_pol.min = string_to_frequency(optarg);
+ if (new_pol.min == 0) {
+ print_unknown_arg();
+ return -EINVAL;
+ }
+ break;
+ case 'u':
+ if (new_pol.max)
+ double_parm++;
+ policychange++;
+ new_pol.max = string_to_frequency(optarg);
+ if (new_pol.max == 0) {
+ print_unknown_arg();
+ return -EINVAL;
+ }
+ break;
+ case 'f':
+ if (freq)
+ double_parm++;
+ freq = string_to_frequency(optarg);
+ if (freq == 0) {
+ print_unknown_arg();
+ return -EINVAL;
+ }
+ break;
+ case 'g':
+ if (new_pol.governor)
+ double_parm++;
+ policychange++;
+ if ((strlen(optarg) < 3) || (strlen(optarg) > 18)) {
+ print_unknown_arg();
+ return -EINVAL;
+ }
+ if ((sscanf(optarg, "%s", gov)) != 1) {
+ print_unknown_arg();
+ return -EINVAL;
+ }
+ new_pol.governor = gov;
+ break;
+ }
+ } while(cont);
+
+ /* parameter checking */
+ if (double_parm) {
+ print_header();
+ printf("the same parameter was passed more than once\n");
+ return -EINVAL;
+ }
+
+ if (freq && policychange) {
+ printf(gettext("the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n"
+ "-g/--governor parameters\n"));
+ return -EINVAL;
+ }
+
+ if (!freq && !policychange) {
+ printf(gettext("At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n"
+ "-g/--governor must be passed\n"));
+ return -EINVAL;
+ }
+
+
+ /* which CPUs shall we modify? */
+ if (!cpus)
+ cpus = &single_cpu;
+
+ if (related)
+ cpus = cpufreq_get_related_cpus(cpus->cpu);
+
+ /* loop over CPUs */
+ while (1) {
+ ret = do_one_cpu(cpus->cpu, &new_pol, freq, policychange);
+ if (ret)
+ break;
+
+ if (!cpus->next)
+ break;
+
+ cpus = cpus->next;
+ }
+
+ /* cleanup */
+ if (cpus->first != &single_cpu)
+ cpufreq_put_related_cpus(cpus->first);
+
+ if (ret)
+ print_error();
+
+ return ret;
+}
projects / xentesttools / bootstrap.git / commitdiff