diff options
Diffstat (limited to 'tools/power/cpupower')
75 files changed, 15006 insertions, 0 deletions
diff --git a/tools/power/cpupower/.gitignore b/tools/power/cpupower/.gitignore new file mode 100644 index 000000000..1f9977cc6 --- /dev/null +++ b/tools/power/cpupower/.gitignore @@ -0,0 +1,28 @@ +.libs +libcpupower.so +libcpupower.so.* +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 +po/cpupowerutils.pot +po/*.gmo +utils/cpufreq-info.o +utils/cpufreq-set.o +utils/cpufreq-aperf.o +cpupower +bench/cpufreq-bench +debug/kernel/Module.symvers +debug/i386/centrino-decode +debug/i386/dump_psb +debug/i386/intel_gsic +debug/i386/powernow-k8-decode +debug/x86_64/centrino-decode +debug/x86_64/powernow-k8-decode diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile new file mode 100644 index 000000000..1dd5f4fcf --- /dev/null +++ b/tools/power/cpupower/Makefile @@ -0,0 +1,334 @@ +# Makefile for cpupower +# +# 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 +# +OUTPUT=./ +ifeq ("$(origin O)", "command line") + OUTPUT := $(O)/ +endif + +ifneq ($(OUTPUT),) +# check that the output directory actually exists +OUTDIR := $(shell cd $(OUTPUT) && pwd) +$(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist)) +endif + +include ../../scripts/Makefile.arch + +# --- CONFIGURATION BEGIN --- + +# Set the following to `true' to make a unstripped, unoptimized +# binary. Leave this set to `false' for production use. +DEBUG ?= true + +# 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 +CPUFREQ_BENCH ?= true + +# Do not build libraries, but build the code in statically +# Libraries are still built, otherwise the Makefile code would +# be rather ugly. +export STATIC ?= false + +# 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= $(shell ./utils/version-gen.sh) +LIB_MAJ= 0.0.1 +LIB_MIN= 0 + +PACKAGE = cpupower +PACKAGE_BUGREPORT = linux-pm@vger.kernel.org +LANGUAGES = de fr it cs pt + + +# Directory definitions. These are default and most probably +# do not need to be changed. Please note that DESTDIR is +# added in front of any of them + +bindir ?= /usr/bin +sbindir ?= /usr/sbin +mandir ?= /usr/man +includedir ?= /usr/include +ifeq ($(IS_64_BIT), 1) +libdir ?= /usr/lib64 +else +libdir ?= /usr/lib +endif +localedir ?= /usr/share/locale +docdir ?= /usr/share/doc/packages/cpupower +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 +MKDIR = mkdir + + +# Now we set up the build system +# + +GMO_FILES = ${shell for HLANG in ${LANGUAGES}; do echo $(OUTPUT)po/$$HLANG.gmo; done;} + +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 -x c /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 + +CFLAGS += -DVERSION=\"$(VERSION)\" -DPACKAGE=\"$(PACKAGE)\" \ + -DPACKAGE_BUGREPORT=\"$(PACKAGE_BUGREPORT)\" -D_GNU_SOURCE + +UTIL_OBJS = utils/helpers/amd.o utils/helpers/msr.o \ + utils/helpers/sysfs.o utils/helpers/misc.o utils/helpers/cpuid.o \ + utils/helpers/pci.o utils/helpers/bitmask.o \ + utils/idle_monitor/nhm_idle.o utils/idle_monitor/snb_idle.o \ + utils/idle_monitor/hsw_ext_idle.o \ + utils/idle_monitor/amd_fam14h_idle.o utils/idle_monitor/cpuidle_sysfs.o \ + utils/idle_monitor/mperf_monitor.o utils/idle_monitor/cpupower-monitor.o \ + utils/cpupower.o utils/cpufreq-info.o utils/cpufreq-set.o \ + utils/cpupower-set.o utils/cpupower-info.o utils/cpuidle-info.o \ + utils/cpuidle-set.o + +UTIL_SRC := $(UTIL_OBJS:.o=.c) + +UTIL_OBJS := $(addprefix $(OUTPUT),$(UTIL_OBJS)) + +UTIL_HEADERS = utils/helpers/helpers.h utils/idle_monitor/cpupower-monitor.h \ + utils/helpers/bitmask.h \ + utils/idle_monitor/idle_monitors.h utils/idle_monitor/idle_monitors.def + +LIB_HEADERS = lib/cpufreq.h lib/cpupower.h lib/cpuidle.h +LIB_SRC = lib/cpufreq.c lib/cpupower.c lib/cpuidle.c +LIB_OBJS = lib/cpufreq.o lib/cpupower.o lib/cpuidle.o +LIB_OBJS := $(addprefix $(OUTPUT),$(LIB_OBJS)) + +CFLAGS += -pipe + +ifeq ($(strip $(NLS)),true) + INSTALL_NLS += install-gmo + COMPILE_NLS += create-gmo + CFLAGS += -DNLS +endif + +ifeq ($(strip $(CPUFREQ_BENCH)),true) + INSTALL_BENCH += install-bench + COMPILE_BENCH += compile-bench +endif + +ifeq ($(strip $(STATIC)),true) + UTIL_OBJS += $(LIB_OBJS) + UTIL_HEADERS += $(LIB_HEADERS) + UTIL_SRC += $(LIB_SRC) +endif + +CFLAGS += $(WARNINGS) + +ifeq ($(strip $(V)),false) + QUIET=@ + ECHO=@echo +else + QUIET= + ECHO=@\# +endif +export QUIET ECHO + +# if DEBUG is enabled, then we do not strip or optimize +ifeq ($(strip $(DEBUG)),true) + CFLAGS += -O1 -g -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: libcpupower $(OUTPUT)cpupower $(COMPILE_NLS) $(COMPILE_BENCH) + +$(OUTPUT)lib/%.o: $(LIB_SRC) $(LIB_HEADERS) + $(ECHO) " CC " $@ + $(QUIET) $(CC) $(CFLAGS) -fPIC -o $@ -c lib/$*.c + +$(OUTPUT)libcpupower.so.$(LIB_MAJ): $(LIB_OBJS) + $(ECHO) " LD " $@ + $(QUIET) $(CC) -shared $(CFLAGS) $(LDFLAGS) -o $@ \ + -Wl,-soname,libcpupower.so.$(LIB_MIN) $(LIB_OBJS) + @ln -sf $(@F) $(OUTPUT)libcpupower.so + @ln -sf $(@F) $(OUTPUT)libcpupower.so.$(LIB_MIN) + +libcpupower: $(OUTPUT)libcpupower.so.$(LIB_MAJ) + +# Let all .o files depend on its .c file and all headers +# Might be worth to put this into utils/Makefile at some point of time +$(UTIL_OBJS): $(UTIL_HEADERS) + +$(OUTPUT)%.o: %.c + $(ECHO) " CC " $@ + $(QUIET) $(CC) $(CFLAGS) -I./lib -I ./utils -o $@ -c $*.c + +$(OUTPUT)cpupower: $(UTIL_OBJS) $(OUTPUT)libcpupower.so.$(LIB_MAJ) + $(ECHO) " CC " $@ +ifeq ($(strip $(STATIC)),true) + $(QUIET) $(CC) $(CFLAGS) $(LDFLAGS) $(UTIL_OBJS) -lrt -lpci -L$(OUTPUT) -o $@ +else + $(QUIET) $(CC) $(CFLAGS) $(LDFLAGS) $(UTIL_OBJS) -lcpupower -lrt -lpci -L$(OUTPUT) -o $@ +endif + $(QUIET) $(STRIPCMD) $@ + +$(OUTPUT)po/$(PACKAGE).pot: $(UTIL_SRC) + $(ECHO) " GETTEXT " $@ + $(QUIET) xgettext --default-domain=$(PACKAGE) --add-comments \ + --keyword=_ --keyword=N_ $(UTIL_SRC) -p $(@D) -o $(@F) + +$(OUTPUT)po/%.gmo: po/%.po + $(ECHO) " MSGFMT " $@ + $(QUIET) msgfmt -o $@ po/$*.po + +create-gmo: ${GMO_FILES} + +update-po: $(OUTPUT)po/$(PACKAGE).pot + $(ECHO) " MSGMRG " $@ + $(QUIET) @for HLANG in $(LANGUAGES); do \ + echo -n "Updating $$HLANG "; \ + if msgmerge po/$$HLANG.po $< -o \ + $(OUTPUT)po/$$HLANG.new.po; then \ + mv -f $(OUTPUT)po/$$HLANG.new.po $(OUTPUT)po/$$HLANG.po; \ + else \ + echo "msgmerge for $$HLANG failed!"; \ + rm -f $(OUTPUT)po/$$HLANG.new.po; \ + fi; \ + done; + +compile-bench: $(OUTPUT)libcpupower.so.$(LIB_MAJ) + @V=$(V) confdir=$(confdir) $(MAKE) -C bench O=$(OUTPUT) + +# we compile into subdirectories. if the target directory is not the +# source directory, they might not exists. So we depend the various +# files onto their directories. +DIRECTORY_DEPS = $(LIB_OBJS) $(UTIL_OBJS) $(GMO_FILES) +$(DIRECTORY_DEPS): | $(sort $(dir $(DIRECTORY_DEPS))) + +# In the second step, we make a rule to actually create these directories +$(sort $(dir $(DIRECTORY_DEPS))): + $(ECHO) " MKDIR " $@ + $(QUIET) $(MKDIR) -p $@ 2>/dev/null + +clean: + -find $(OUTPUT) \( -not -type d \) -and \( -name '*~' -o -name '*.[oas]' \) -type f -print \ + | xargs rm -f + -rm -f $(OUTPUT)cpupower + -rm -f $(OUTPUT)libcpupower.so* + -rm -rf $(OUTPUT)po/*.gmo + -rm -rf $(OUTPUT)po/*.pot + $(MAKE) -C bench O=$(OUTPUT) clean + + +install-lib: + $(INSTALL) -d $(DESTDIR)${libdir} + $(CP) $(OUTPUT)libcpupower.so* $(DESTDIR)${libdir}/ + $(INSTALL) -d $(DESTDIR)${includedir} + $(INSTALL_DATA) lib/cpufreq.h $(DESTDIR)${includedir}/cpufreq.h + $(INSTALL_DATA) lib/cpuidle.h $(DESTDIR)${includedir}/cpuidle.h + +install-tools: + $(INSTALL) -d $(DESTDIR)${bindir} + $(INSTALL_PROGRAM) $(OUTPUT)cpupower $(DESTDIR)${bindir} + +install-man: + $(INSTALL_DATA) -D man/cpupower.1 $(DESTDIR)${mandir}/man1/cpupower.1 + $(INSTALL_DATA) -D man/cpupower-frequency-set.1 $(DESTDIR)${mandir}/man1/cpupower-frequency-set.1 + $(INSTALL_DATA) -D man/cpupower-frequency-info.1 $(DESTDIR)${mandir}/man1/cpupower-frequency-info.1 + $(INSTALL_DATA) -D man/cpupower-idle-set.1 $(DESTDIR)${mandir}/man1/cpupower-idle-set.1 + $(INSTALL_DATA) -D man/cpupower-idle-info.1 $(DESTDIR)${mandir}/man1/cpupower-idle-info.1 + $(INSTALL_DATA) -D man/cpupower-set.1 $(DESTDIR)${mandir}/man1/cpupower-set.1 + $(INSTALL_DATA) -D man/cpupower-info.1 $(DESTDIR)${mandir}/man1/cpupower-info.1 + $(INSTALL_DATA) -D man/cpupower-monitor.1 $(DESTDIR)${mandir}/man1/cpupower-monitor.1 + +install-gmo: + $(INSTALL) -d $(DESTDIR)${localedir} + for HLANG in $(LANGUAGES); do \ + echo '$(INSTALL_DATA) -D $(OUTPUT)po/$$HLANG.gmo $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpupower.mo'; \ + $(INSTALL_DATA) -D $(OUTPUT)po/$$HLANG.gmo $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpupower.mo; \ + done; + +install-bench: + @#DESTDIR must be set from outside to survive + @sbindir=$(sbindir) bindir=$(bindir) docdir=$(docdir) confdir=$(confdir) $(MAKE) -C bench O=$(OUTPUT) install + +ifeq ($(strip $(STATIC)),true) +install: all install-tools install-man $(INSTALL_NLS) $(INSTALL_BENCH) +else +install: all install-lib install-tools install-man $(INSTALL_NLS) $(INSTALL_BENCH) +endif + +uninstall: + - rm -f $(DESTDIR)${libdir}/libcpupower.* + - rm -f $(DESTDIR)${includedir}/cpufreq.h + - rm -f $(DESTDIR)${includedir}/cpuidle.h + - rm -f $(DESTDIR)${bindir}/utils/cpupower + - rm -f $(DESTDIR)${mandir}/man1/cpupower.1 + - rm -f $(DESTDIR)${mandir}/man1/cpupower-frequency-set.1 + - rm -f $(DESTDIR)${mandir}/man1/cpupower-frequency-info.1 + - rm -f $(DESTDIR)${mandir}/man1/cpupower-set.1 + - rm -f $(DESTDIR)${mandir}/man1/cpupower-info.1 + - rm -f $(DESTDIR)${mandir}/man1/cpupower-monitor.1 + - for HLANG in $(LANGUAGES); do \ + rm -f $(DESTDIR)${localedir}/$$HLANG/LC_MESSAGES/cpupower.mo; \ + done; + +.PHONY: all utils libcpupower update-po create-gmo install-lib install-tools install-man install-gmo install uninstall clean diff --git a/tools/power/cpupower/README b/tools/power/cpupower/README new file mode 100644 index 000000000..1c68f4766 --- /dev/null +++ b/tools/power/cpupower/README @@ -0,0 +1,47 @@ +The cpupower package consists of the following elements: + +requirements +------------ + +On x86 pciutils is needed at runtime (-lpci). +For compilation pciutils-devel (pci/pci.h) and a gcc version +providing cpuid.h is needed. +For both it's not explicitly checked for (yet). + + +libcpupower +---------- + +"libcpupower" 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]. + + +compilation and installation +---------------------------- + +make +su +make install + +should suffice on most systems. It builds libcpupower to put in +/usr/lib; cpupower, cpufreq-bench_plot.sh to put in /usr/bin; and +cpufreq-bench to put in /usr/sbin. 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 cpupower; +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 +cpupower. + + + Dominik Brodowski diff --git a/tools/power/cpupower/ToDo b/tools/power/cpupower/ToDo new file mode 100644 index 000000000..6e8b89f28 --- /dev/null +++ b/tools/power/cpupower/ToDo @@ -0,0 +1,10 @@ +ToDos sorted by priority: + +- Use bitmask functions to parse CPU topology more robust + (current implementation has issues on AMD) +- Try to read out boost states and frequencies on Intel +- Somewhere saw the ability to read power consumption of + RAM from HW on Intel SandyBridge -> another monitor? +- Add another c1e debug idle monitor + -> Is by design racy with BIOS, but could be added + with a --force option and some "be careful" messages diff --git a/tools/power/cpupower/bench/Makefile b/tools/power/cpupower/bench/Makefile new file mode 100644 index 000000000..f68b4bc55 --- /dev/null +++ b/tools/power/cpupower/bench/Makefile @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: GPL-2.0 +OUTPUT := ./ +ifeq ("$(origin O)", "command line") +ifneq ($(O),) + OUTPUT := $(O)/ +endif +endif + +ifeq ($(strip $(STATIC)),true) +LIBS = -L../ -L$(OUTPUT) -lm +OBJS = $(OUTPUT)main.o $(OUTPUT)parse.o $(OUTPUT)system.o $(OUTPUT)benchmark.o \ + $(OUTPUT)../lib/cpufreq.o $(OUTPUT)../lib/cpupower.o +else +LIBS = -L../ -L$(OUTPUT) -lm -lcpupower +OBJS = $(OUTPUT)main.o $(OUTPUT)parse.o $(OUTPUT)system.o $(OUTPUT)benchmark.o +endif + +CFLAGS += -D_GNU_SOURCE -I../lib -DDEFAULT_CONFIG_FILE=\"$(confdir)/cpufreq-bench.conf\" + +$(OUTPUT)%.o : %.c + $(ECHO) " CC " $@ + $(QUIET) $(CC) -c $(CFLAGS) $< -o $@ + +$(OUTPUT)cpufreq-bench: $(OBJS) + $(ECHO) " CC " $@ + $(QUIET) $(CC) -o $@ $(CFLAGS) $(LDFLAGS) $(OBJS) $(LIBS) + +all: $(OUTPUT)cpufreq-bench + +install: + mkdir -p $(DESTDIR)/$(sbindir) + mkdir -p $(DESTDIR)/$(bindir) + mkdir -p $(DESTDIR)/$(docdir) + mkdir -p $(DESTDIR)/$(confdir) + install -m 755 $(OUTPUT)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 $(OUTPUT)*.o + rm -f $(OUTPUT)cpufreq-bench diff --git a/tools/power/cpupower/bench/README-BENCH b/tools/power/cpupower/bench/README-BENCH new file mode 100644 index 000000000..97727aed6 --- /dev/null +++ b/tools/power/cpupower/bench/README-BENCH @@ -0,0 +1,124 @@ +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 average 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 + diff --git a/tools/power/cpupower/bench/benchmark.c b/tools/power/cpupower/bench/benchmark.c new file mode 100644 index 000000000..429d51ab8 --- /dev/null +++ b/tools/power/cpupower/bench/benchmark.c @@ -0,0 +1,194 @@ +/* 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("average: %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 average 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; + } +} diff --git a/tools/power/cpupower/bench/benchmark.h b/tools/power/cpupower/bench/benchmark.h new file mode 100644 index 000000000..51d7f50ac --- /dev/null +++ b/tools/power/cpupower/bench/benchmark.h @@ -0,0 +1,29 @@ +/* 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); diff --git a/tools/power/cpupower/bench/config.h b/tools/power/cpupower/bench/config.h new file mode 100644 index 000000000..ee6f258e5 --- /dev/null +++ b/tools/power/cpupower/bench/config.h @@ -0,0 +1,36 @@ +/* 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(...) do { } while (0) +#endif + diff --git a/tools/power/cpupower/bench/cpufreq-bench_plot.sh b/tools/power/cpupower/bench/cpufreq-bench_plot.sh new file mode 100644 index 000000000..410021a12 --- /dev/null +++ b/tools/power/cpupower/bench/cpufreq-bench_plot.sh @@ -0,0 +1,104 @@ +#!/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 diff --git a/tools/power/cpupower/bench/cpufreq-bench_script.sh b/tools/power/cpupower/bench/cpufreq-bench_script.sh new file mode 100644 index 000000000..de20d2a06 --- /dev/null +++ b/tools/power/cpupower/bench/cpufreq-bench_script.sh @@ -0,0 +1,101 @@ +#!/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 diff --git a/tools/power/cpupower/bench/example.cfg b/tools/power/cpupower/bench/example.cfg new file mode 100644 index 000000000..f91f64360 --- /dev/null +++ b/tools/power/cpupower/bench/example.cfg @@ -0,0 +1,11 @@ +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 diff --git a/tools/power/cpupower/bench/main.c b/tools/power/cpupower/bench/main.c new file mode 100644 index 000000000..24910313a --- /dev/null +++ b/tools/power/cpupower/bench/main.c @@ -0,0 +1,202 @@ +/* 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; +} + diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c new file mode 100644 index 000000000..9ba8a44ad --- /dev/null +++ b/tools/power/cpupower/bench/parse.c @@ -0,0 +1,238 @@ +/* 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, *filename_tmp; + 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 (!filename) { + perror("malloc"); + goto out_dir; + } + + if (uname(&sysdata) == 0) { + len += strlen(sysdata.nodename) + strlen(sysdata.release); + filename_tmp = realloc(filename, sizeof(*filename) * len); + + if (filename_tmp == NULL) { + free(filename); + perror("realloc"); + goto out_dir; + } + + filename = filename_tmp; + 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("logfilename: %s\n", filename); + + output = fopen(filename, "w+"); + if (output == NULL) { + perror("fopen"); + fprintf(stderr, "error: unable to open logfile\n"); + goto out; + } + + fprintf(stdout, "Logfile: %s\n", filename); + + fprintf(output, "#round load sleep performance powersave percentage\n"); +out: + free(filename); +out_dir: + closedir(dir); + 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[16], val[32], *line = NULL; + FILE *configfile; + + if (config == NULL) { + fprintf(stderr, "error: config is NULL\n"); + return 1; + } + + configfile = fopen(path, "r"); + 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] == ' ' || line[0] == '\n') + continue; + + if (sscanf(line, "%14s = %30s", opt, val) < 2) + continue; + + dprintf("parsing: %s -> %s\n", opt, val); + + if (strcmp("sleep", opt) == 0) + sscanf(val, "%li", &config->sleep); + + else if (strcmp("load", opt) == 0) + sscanf(val, "%li", &config->load); + + else if (strcmp("load_step", opt) == 0) + sscanf(val, "%li", &config->load_step); + + else if (strcmp("sleep_step", opt) == 0) + sscanf(val, "%li", &config->sleep_step); + + else if (strcmp("cycles", opt) == 0) + sscanf(val, "%u", &config->cycles); + + else if (strcmp("rounds", opt) == 0) + sscanf(val, "%u", &config->rounds); + + else if (strcmp("verbose", opt) == 0) + sscanf(val, "%u", &config->verbose); + + else if (strcmp("output", opt) == 0) + config->output = prepare_output(val); + + else if (strcmp("cpu", opt) == 0) + sscanf(val, "%u", &config->cpu); + + else if (strcmp("governor", opt) == 0) { + strncpy(config->governor, val, + sizeof(config->governor)); + config->governor[sizeof(config->governor) - 1] = '\0'; + } + + else if (strcmp("priority", opt) == 0) { + if (string_to_prio(val) != SCHED_ERR) + config->prio = string_to_prio(val); + } + } + + free(line); + + return 0; +} diff --git a/tools/power/cpupower/bench/parse.h b/tools/power/cpupower/bench/parse.h new file mode 100644 index 000000000..a8dc632d9 --- /dev/null +++ b/tools/power/cpupower/bench/parse.h @@ -0,0 +1,53 @@ +/* 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(); + diff --git a/tools/power/cpupower/bench/system.c b/tools/power/cpupower/bench/system.c new file mode 100644 index 000000000..2bb3eef7d --- /dev/null +++ b/tools/power/cpupower/bench/system.c @@ -0,0 +1,192 @@ +/* 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 <cpupower.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 (cpupower_is_cpu_online(cpu) != 1) { + 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; +} + +/** + * notifies 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); + } +} + diff --git a/tools/power/cpupower/bench/system.h b/tools/power/cpupower/bench/system.h new file mode 100644 index 000000000..3a8c858b7 --- /dev/null +++ b/tools/power/cpupower/bench/system.h @@ -0,0 +1,29 @@ +/* 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); diff --git a/tools/power/cpupower/debug/i386/Makefile b/tools/power/cpupower/debug/i386/Makefile new file mode 100644 index 000000000..b3f771039 --- /dev/null +++ b/tools/power/cpupower/debug/i386/Makefile @@ -0,0 +1,42 @@ +# SPDX-License-Identifier: GPL-2.0 +OUTPUT=./ +ifeq ("$(origin O)", "command line") + OUTPUT := $(O)/ +endif + +DESTDIR = +bindir = /usr/bin + +INSTALL = /usr/bin/install + + +default: all + +$(OUTPUT)centrino-decode: centrino-decode.c + $(CC) $(CFLAGS) -o $@ centrino-decode.c + +$(OUTPUT)dump_psb: dump_psb.c + $(CC) $(CFLAGS) -o $@ dump_psb.c + +$(OUTPUT)intel_gsic: intel_gsic.c + $(CC) $(CFLAGS) -o $@ -llrmi intel_gsic.c + +$(OUTPUT)powernow-k8-decode: powernow-k8-decode.c + $(CC) $(CFLAGS) -o $@ powernow-k8-decode.c + +all: $(OUTPUT)centrino-decode $(OUTPUT)dump_psb $(OUTPUT)intel_gsic $(OUTPUT)powernow-k8-decode + +clean: + rm -rf $(OUTPUT)centrino-decode + rm -rf $(OUTPUT)dump_psb + rm -rf $(OUTPUT)intel_gsic + rm -rf $(OUTPUT)powernow-k8-decode + +install: + $(INSTALL) -d $(DESTDIR)${bindir} + $(INSTALL) $(OUTPUT)centrino-decode $(DESTDIR)${bindir} + $(INSTALL) $(OUTPUT)powernow-k8-decode $(DESTDIR)${bindir} + $(INSTALL) $(OUTPUT)dump_psb $(DESTDIR)${bindir} + $(INSTALL) $(OUTPUT)intel_gsic $(DESTDIR)${bindir} + +.PHONY: all default clean install diff --git a/tools/power/cpupower/debug/i386/centrino-decode.c b/tools/power/cpupower/debug/i386/centrino-decode.c new file mode 100644 index 000000000..7ef24cce4 --- /dev/null +++ b/tools/power/cpupower/debug/i386/centrino-decode.c @@ -0,0 +1,113 @@ +/* + * (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; +} diff --git a/tools/power/cpupower/debug/i386/dump_psb.c b/tools/power/cpupower/debug/i386/dump_psb.c new file mode 100644 index 000000000..2c768cf70 --- /dev/null +++ b/tools/power/cpupower/debug/i386/dump_psb.c @@ -0,0 +1,196 @@ +/* + * 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[] = { + {"numpst", no_argument, NULL, '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; +} diff --git a/tools/power/cpupower/debug/i386/intel_gsic.c b/tools/power/cpupower/debug/i386/intel_gsic.c new file mode 100644 index 000000000..d032c826d --- /dev/null +++ b/tools/power/cpupower/debug/i386/intel_gsic.c @@ -0,0 +1,78 @@ +/* + * (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\nspeedstep-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; +} diff --git a/tools/power/cpupower/debug/i386/powernow-k8-decode.c b/tools/power/cpupower/debug/i386/powernow-k8-decode.c new file mode 100644 index 000000000..638a6b3bf --- /dev/null +++ b/tools/power/cpupower/debug/i386/powernow-k8-decode.c @@ -0,0 +1,96 @@ +/* + * (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; +} diff --git a/tools/power/cpupower/debug/kernel/Makefile b/tools/power/cpupower/debug/kernel/Makefile new file mode 100644 index 000000000..c23e5a6ce --- /dev/null +++ b/tools/power/cpupower/debug/kernel/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-m := + +KDIR := /lib/modules/$(shell uname -r)/build +KMISC := /lib/modules/$(shell uname -r)/cpufrequtils/ + +ifeq ("$(CONFIG_X86_TSC)", "y") + obj-m += cpufreq-test_tsc.o +endif + +default: + $(MAKE) -C $(KDIR) M=$(CURDIR) + +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 diff --git a/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c b/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c new file mode 100644 index 000000000..6ff8383f2 --- /dev/null +++ b/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c @@ -0,0 +1,110 @@ +/* + * 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 + * linux-pm@vger.kernel.org + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/acpi.h> +#include <asm/io.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(); + then_tsc = rdtsc(); + for (i=0;i<20;i++) { + mdelay(100); + now = read_pmtmr(); + now_tsc = rdtsc(); + 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"); diff --git a/tools/power/cpupower/debug/x86_64/Makefile b/tools/power/cpupower/debug/x86_64/Makefile new file mode 100644 index 000000000..59af84b8e --- /dev/null +++ b/tools/power/cpupower/debug/x86_64/Makefile @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: GPL-2.0 +OUTPUT=./ +ifeq ("$(origin O)", "command line") + OUTPUT := $(O)/ +endif + +DESTDIR = +bindir = /usr/bin + +INSTALL = /usr/bin/install + + +default: all + +$(OUTPUT)centrino-decode: ../i386/centrino-decode.c + $(CC) $(CFLAGS) -o $@ $< + +$(OUTPUT)powernow-k8-decode: ../i386/powernow-k8-decode.c + $(CC) $(CFLAGS) -o $@ $< + +all: $(OUTPUT)centrino-decode $(OUTPUT)powernow-k8-decode + +clean: + rm -rf $(OUTPUT)centrino-decode $(OUTPUT)powernow-k8-decode + +install: + $(INSTALL) -d $(DESTDIR)${bindir} + $(INSTALL) $(OUTPUT)centrino-decode $(DESTDIR)${bindir} + $(INSTALL) $(OUTPUT)powernow-k8-decode $(DESTDIR)${bindir} + +.PHONY: all default clean install diff --git a/tools/power/cpupower/lib/cpufreq.c b/tools/power/cpupower/lib/cpufreq.c new file mode 100644 index 000000000..0c0f3e3f0 --- /dev/null +++ b/tools/power/cpupower/lib/cpufreq.c @@ -0,0 +1,716 @@ +/* + * (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 <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#include "cpufreq.h" +#include "cpupower_intern.h" + +/* CPUFREQ sysfs access **************************************************/ + +/* helper function to read file from /sys into given buffer */ +/* fname is a relative path under "cpuX/cpufreq" dir */ +static unsigned int sysfs_cpufreq_read_file(unsigned int cpu, const char *fname, + char *buf, size_t buflen) +{ + char path[SYSFS_PATH_MAX]; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpufreq/%s", + cpu, fname); + return cpupower_read_sysfs(path, buf, buflen); +} + +/* helper function to write a new value to a /sys file */ +/* fname is a relative path under "cpuX/cpufreq" dir */ +static unsigned int sysfs_cpufreq_write_file(unsigned int cpu, + const char *fname, + const char *value, size_t len) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numwrite; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpufreq/%s", + cpu, fname); + + fd = open(path, O_WRONLY); + if (fd == -1) + return 0; + + numwrite = write(fd, value, len); + if (numwrite < 1) { + close(fd); + return 0; + } + + close(fd); + + return (unsigned int) numwrite; +} + +/* read access to files which contain one numeric value */ + +enum cpufreq_value { + CPUINFO_CUR_FREQ, + CPUINFO_MIN_FREQ, + CPUINFO_MAX_FREQ, + CPUINFO_LATENCY, + SCALING_CUR_FREQ, + SCALING_MIN_FREQ, + SCALING_MAX_FREQ, + STATS_NUM_TRANSITIONS, + MAX_CPUFREQ_VALUE_READ_FILES +}; + +static const char *cpufreq_value_files[MAX_CPUFREQ_VALUE_READ_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_cpufreq_get_one_value(unsigned int cpu, + enum cpufreq_value which) +{ + unsigned long value; + unsigned int len; + char linebuf[MAX_LINE_LEN]; + char *endp; + + if (which >= MAX_CPUFREQ_VALUE_READ_FILES) + return 0; + + len = sysfs_cpufreq_read_file(cpu, cpufreq_value_files[which], + linebuf, sizeof(linebuf)); + + if (len == 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 cpufreq_string { + SCALING_DRIVER, + SCALING_GOVERNOR, + MAX_CPUFREQ_STRING_FILES +}; + +static const char *cpufreq_string_files[MAX_CPUFREQ_STRING_FILES] = { + [SCALING_DRIVER] = "scaling_driver", + [SCALING_GOVERNOR] = "scaling_governor", +}; + + +static char *sysfs_cpufreq_get_one_string(unsigned int cpu, + enum cpufreq_string which) +{ + char linebuf[MAX_LINE_LEN]; + char *result; + unsigned int len; + + if (which >= MAX_CPUFREQ_STRING_FILES) + return NULL; + + len = sysfs_cpufreq_read_file(cpu, cpufreq_string_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return NULL; + + result = strdup(linebuf); + if (result == NULL) + return NULL; + + if (result[strlen(result) - 1] == '\n') + result[strlen(result) - 1] = '\0'; + + return result; +} + +/* write access */ + +enum cpufreq_write { + WRITE_SCALING_MIN_FREQ, + WRITE_SCALING_MAX_FREQ, + WRITE_SCALING_GOVERNOR, + WRITE_SCALING_SET_SPEED, + MAX_CPUFREQ_WRITE_FILES +}; + +static const char *cpufreq_write_files[MAX_CPUFREQ_WRITE_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_cpufreq_write_one_value(unsigned int cpu, + enum cpufreq_write which, + const char *new_value, size_t len) +{ + if (which >= MAX_CPUFREQ_WRITE_FILES) + return 0; + + if (sysfs_cpufreq_write_file(cpu, cpufreq_write_files[which], + new_value, len) != len) + return -ENODEV; + + return 0; +}; + +unsigned long cpufreq_get_freq_kernel(unsigned int cpu) +{ + return sysfs_cpufreq_get_one_value(cpu, SCALING_CUR_FREQ); +} + +unsigned long cpufreq_get_freq_hardware(unsigned int cpu) +{ + return sysfs_cpufreq_get_one_value(cpu, CPUINFO_CUR_FREQ); +} + +unsigned long cpufreq_get_transition_latency(unsigned int cpu) +{ + return sysfs_cpufreq_get_one_value(cpu, CPUINFO_LATENCY); +} + +int cpufreq_get_hardware_limits(unsigned int cpu, + unsigned long *min, + unsigned long *max) +{ + if ((!min) || (!max)) + return -EINVAL; + + *min = sysfs_cpufreq_get_one_value(cpu, CPUINFO_MIN_FREQ); + if (!*min) + return -ENODEV; + + *max = sysfs_cpufreq_get_one_value(cpu, CPUINFO_MAX_FREQ); + if (!*max) + return -ENODEV; + + return 0; +} + +char *cpufreq_get_driver(unsigned int cpu) +{ + return sysfs_cpufreq_get_one_string(cpu, SCALING_DRIVER); +} + +void cpufreq_put_driver(char *ptr) +{ + if (!ptr) + return; + free(ptr); +} + +struct cpufreq_policy *cpufreq_get_policy(unsigned int cpu) +{ + struct cpufreq_policy *policy; + + policy = malloc(sizeof(struct cpufreq_policy)); + if (!policy) + return NULL; + + policy->governor = sysfs_cpufreq_get_one_string(cpu, SCALING_GOVERNOR); + if (!policy->governor) { + free(policy); + return NULL; + } + policy->min = sysfs_cpufreq_get_one_value(cpu, SCALING_MIN_FREQ); + policy->max = sysfs_cpufreq_get_one_value(cpu, SCALING_MAX_FREQ); + if ((!policy->min) || (!policy->max)) { + free(policy->governor); + free(policy); + return NULL; + } + + return policy; +} + +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 *first = NULL; + struct cpufreq_available_governors *current = NULL; + char linebuf[MAX_LINE_LEN]; + unsigned int pos, i; + unsigned int len; + + len = sysfs_cpufreq_read_file(cpu, "scaling_available_governors", + linebuf, sizeof(linebuf)); + if (len == 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; +} + +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 *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; + + len = sysfs_cpufreq_read_file(cpu, "scaling_available_frequencies", + linebuf, sizeof(linebuf)); + if (len == 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; +} + +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; + } +} + +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; + + len = sysfs_cpufreq_read_file(cpu, file, linebuf, sizeof(linebuf)); + if (len == 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 *cpufreq_get_affected_cpus(unsigned int cpu) +{ + return sysfs_get_cpu_list(cpu, "affected_cpus"); +} + +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) +{ + return sysfs_get_cpu_list(cpu, "related_cpus"); +} + +void cpufreq_put_related_cpus(struct cpufreq_affected_cpus *any) +{ + cpufreq_put_affected_cpus(any); +} + +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 cpufreq_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_cpufreq_get_one_value(cpu, SCALING_MIN_FREQ); + write_max_first = (old_min && (policy->max < old_min) ? 0 : 1); + + if (write_max_first) { + ret = sysfs_cpufreq_write_one_value(cpu, WRITE_SCALING_MAX_FREQ, + max, strlen(max)); + if (ret) + return ret; + } + + ret = sysfs_cpufreq_write_one_value(cpu, WRITE_SCALING_MIN_FREQ, min, + strlen(min)); + if (ret) + return ret; + + if (!write_max_first) { + ret = sysfs_cpufreq_write_one_value(cpu, WRITE_SCALING_MAX_FREQ, + max, strlen(max)); + if (ret) + return ret; + } + + return sysfs_cpufreq_write_one_value(cpu, WRITE_SCALING_GOVERNOR, + gov, strlen(gov)); +} + + +int cpufreq_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_cpufreq_write_one_value(cpu, WRITE_SCALING_MIN_FREQ, + value, strlen(value)); +} + + +int cpufreq_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_cpufreq_write_one_value(cpu, WRITE_SCALING_MAX_FREQ, + value, strlen(value)); +} + +int cpufreq_modify_policy_governor(unsigned int cpu, char *governor) +{ + char new_gov[SYSFS_PATH_MAX]; + + if ((!governor) || (strlen(governor) > 19)) + return -EINVAL; + + if (verify_gov(new_gov, governor)) + return -EINVAL; + + return sysfs_cpufreq_write_one_value(cpu, WRITE_SCALING_GOVERNOR, + new_gov, strlen(new_gov)); +} + +int cpufreq_set_frequency(unsigned int cpu, unsigned long target_frequency) +{ + struct cpufreq_policy *pol = cpufreq_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 = cpufreq_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_cpufreq_write_one_value(cpu, WRITE_SCALING_SET_SPEED, + freq, strlen(freq)); +} + +struct cpufreq_stats *cpufreq_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; + + len = sysfs_cpufreq_read_file(cpu, "stats/time_in_state", + linebuf, sizeof(linebuf)); + if (len == 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; +} + +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) +{ + return sysfs_cpufreq_get_one_value(cpu, STATS_NUM_TRANSITIONS); +} diff --git a/tools/power/cpupower/lib/cpufreq.h b/tools/power/cpupower/lib/cpufreq.h new file mode 100644 index 000000000..60beaf5ed --- /dev/null +++ b/tools/power/cpupower/lib/cpufreq.h @@ -0,0 +1,212 @@ +/* + * 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. + */ + +#ifndef __CPUPOWER_CPUFREQ_H__ +#define __CPUPOWER_CPUFREQ_H__ + +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 + +/* 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. + */ + +unsigned long cpufreq_get_freq_kernel(unsigned int cpu); + +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 + */ +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. + */ + +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. + */ + +char *cpufreq_get_driver(unsigned int cpu); + +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. + */ + + +struct cpufreq_policy *cpufreq_get_policy(unsigned int cpu); + +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. + */ + + +struct cpufreq_available_governors +*cpufreq_get_available_governors(unsigned int cpu); + +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. + */ + +struct cpufreq_available_frequencies +*cpufreq_get_available_frequencies(unsigned int cpu); + +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. + */ + +struct cpufreq_affected_cpus *cpufreq_get_affected_cpus(unsigned + int cpu); + +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. + */ + +struct cpufreq_affected_cpus *cpufreq_get_related_cpus(unsigned + int cpu); + +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. + */ + +struct cpufreq_stats *cpufreq_get_stats(unsigned int cpu, + unsigned long long *total_time); + +void cpufreq_put_stats(struct cpufreq_stats *stats); + +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. + */ + +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. + */ + +int cpufreq_modify_policy_min(unsigned int cpu, unsigned long min_freq); +int cpufreq_modify_policy_max(unsigned int cpu, unsigned long max_freq); +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. + */ + +int cpufreq_set_frequency(unsigned int cpu, + unsigned long target_frequency); + +#ifdef __cplusplus +} +#endif + +#endif /* _CPUFREQ_H */ diff --git a/tools/power/cpupower/lib/cpuidle.c b/tools/power/cpupower/lib/cpuidle.c new file mode 100644 index 000000000..852d25462 --- /dev/null +++ b/tools/power/cpupower/lib/cpuidle.c @@ -0,0 +1,380 @@ +/* + * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de> + * (C) 2011 Thomas Renninger <trenn@novell.com> Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + */ + +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#include "cpuidle.h" +#include "cpupower_intern.h" + +/* + * helper function to check whether a file under "../cpuX/cpuidle/stateX/" dir + * exists. + * For example the functionality to disable c-states was introduced in later + * kernel versions, this function can be used to explicitly check for this + * feature. + * + * returns 1 if the file exists, 0 otherwise. + */ +static +unsigned int cpuidle_state_file_exists(unsigned int cpu, + unsigned int idlestate, + const char *fname) +{ + char path[SYSFS_PATH_MAX]; + struct stat statbuf; + + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", + cpu, idlestate, fname); + if (stat(path, &statbuf) != 0) + return 0; + return 1; +} + +/* + * helper function to read file from /sys into given buffer + * fname is a relative path under "cpuX/cpuidle/stateX/" dir + * cstates starting with 0, C0 is not counted as cstate. + * This means if you want C1 info, pass 0 as idlestate param + */ +static +unsigned int cpuidle_state_read_file(unsigned int cpu, + unsigned int idlestate, + const char *fname, char *buf, + size_t buflen) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numread; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", + cpu, idlestate, fname); + + fd = open(path, O_RDONLY); + if (fd == -1) + return 0; + + numread = read(fd, buf, buflen - 1); + if (numread < 1) { + close(fd); + return 0; + } + + buf[numread] = '\0'; + close(fd); + + return (unsigned int) numread; +} + +/* + * helper function to write a new value to a /sys file + * fname is a relative path under "../cpuX/cpuidle/cstateY/" dir + * + * Returns the number of bytes written or 0 on error + */ +static +unsigned int cpuidle_state_write_file(unsigned int cpu, + unsigned int idlestate, + const char *fname, + const char *value, size_t len) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numwrite; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", + cpu, idlestate, fname); + + fd = open(path, O_WRONLY); + if (fd == -1) + return 0; + + numwrite = write(fd, value, len); + if (numwrite < 1) { + close(fd); + return 0; + } + + close(fd); + + return (unsigned int) numwrite; +} + +/* read access to files which contain one numeric value */ + +enum idlestate_value { + IDLESTATE_USAGE, + IDLESTATE_POWER, + IDLESTATE_LATENCY, + IDLESTATE_TIME, + IDLESTATE_DISABLE, + MAX_IDLESTATE_VALUE_FILES +}; + +static const char *idlestate_value_files[MAX_IDLESTATE_VALUE_FILES] = { + [IDLESTATE_USAGE] = "usage", + [IDLESTATE_POWER] = "power", + [IDLESTATE_LATENCY] = "latency", + [IDLESTATE_TIME] = "time", + [IDLESTATE_DISABLE] = "disable", +}; + +static +unsigned long long cpuidle_state_get_one_value(unsigned int cpu, + unsigned int idlestate, + enum idlestate_value which) +{ + unsigned long long value; + unsigned int len; + char linebuf[MAX_LINE_LEN]; + char *endp; + + if (which >= MAX_IDLESTATE_VALUE_FILES) + return 0; + + len = cpuidle_state_read_file(cpu, idlestate, + idlestate_value_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return 0; + + value = strtoull(linebuf, &endp, 0); + + if (endp == linebuf || errno == ERANGE) + return 0; + + return value; +} + +/* read access to files which contain one string */ + +enum idlestate_string { + IDLESTATE_DESC, + IDLESTATE_NAME, + MAX_IDLESTATE_STRING_FILES +}; + +static const char *idlestate_string_files[MAX_IDLESTATE_STRING_FILES] = { + [IDLESTATE_DESC] = "desc", + [IDLESTATE_NAME] = "name", +}; + + +static char *cpuidle_state_get_one_string(unsigned int cpu, + unsigned int idlestate, + enum idlestate_string which) +{ + char linebuf[MAX_LINE_LEN]; + char *result; + unsigned int len; + + if (which >= MAX_IDLESTATE_STRING_FILES) + return NULL; + + len = cpuidle_state_read_file(cpu, idlestate, + idlestate_string_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return NULL; + + result = strdup(linebuf); + if (result == NULL) + return NULL; + + if (result[strlen(result) - 1] == '\n') + result[strlen(result) - 1] = '\0'; + + return result; +} + +/* + * Returns: + * 1 if disabled + * 0 if enabled + * -1 if idlestate is not available + * -2 if disabling is not supported by the kernel + */ +int cpuidle_is_state_disabled(unsigned int cpu, + unsigned int idlestate) +{ + if (cpuidle_state_count(cpu) <= idlestate) + return -1; + + if (!cpuidle_state_file_exists(cpu, idlestate, + idlestate_value_files[IDLESTATE_DISABLE])) + return -2; + return cpuidle_state_get_one_value(cpu, idlestate, IDLESTATE_DISABLE); +} + +/* + * Pass 1 as last argument to disable or 0 to enable the state + * Returns: + * 0 on success + * negative values on error, for example: + * -1 if idlestate is not available + * -2 if disabling is not supported by the kernel + * -3 No write access to disable/enable C-states + */ +int cpuidle_state_disable(unsigned int cpu, + unsigned int idlestate, + unsigned int disable) +{ + char value[SYSFS_PATH_MAX]; + int bytes_written; + + if (cpuidle_state_count(cpu) <= idlestate) + return -1; + + if (!cpuidle_state_file_exists(cpu, idlestate, + idlestate_value_files[IDLESTATE_DISABLE])) + return -2; + + snprintf(value, SYSFS_PATH_MAX, "%u", disable); + + bytes_written = cpuidle_state_write_file(cpu, idlestate, "disable", + value, sizeof(disable)); + if (bytes_written) + return 0; + return -3; +} + +unsigned long cpuidle_state_latency(unsigned int cpu, + unsigned int idlestate) +{ + return cpuidle_state_get_one_value(cpu, idlestate, IDLESTATE_LATENCY); +} + +unsigned long cpuidle_state_usage(unsigned int cpu, + unsigned int idlestate) +{ + return cpuidle_state_get_one_value(cpu, idlestate, IDLESTATE_USAGE); +} + +unsigned long long cpuidle_state_time(unsigned int cpu, + unsigned int idlestate) +{ + return cpuidle_state_get_one_value(cpu, idlestate, IDLESTATE_TIME); +} + +char *cpuidle_state_name(unsigned int cpu, unsigned int idlestate) +{ + return cpuidle_state_get_one_string(cpu, idlestate, IDLESTATE_NAME); +} + +char *cpuidle_state_desc(unsigned int cpu, unsigned int idlestate) +{ + return cpuidle_state_get_one_string(cpu, idlestate, IDLESTATE_DESC); +} + +/* + * Returns number of supported C-states of CPU core cpu + * Negativ in error case + * Zero if cpuidle does not export any C-states + */ +unsigned int cpuidle_state_count(unsigned int cpu) +{ + char file[SYSFS_PATH_MAX]; + struct stat statbuf; + int idlestates = 1; + + + snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpuidle"); + if (stat(file, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) + return 0; + + snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpu%u/cpuidle/state0", cpu); + if (stat(file, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) + return 0; + + while (stat(file, &statbuf) == 0 && S_ISDIR(statbuf.st_mode)) { + snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU + "cpu%u/cpuidle/state%d", cpu, idlestates); + idlestates++; + } + idlestates--; + return idlestates; +} + +/* CPUidle general /sys/devices/system/cpu/cpuidle/ sysfs access ********/ + +/* + * helper function to read file from /sys into given buffer + * fname is a relative path under "cpu/cpuidle/" dir + */ +static unsigned int sysfs_cpuidle_read_file(const char *fname, char *buf, + size_t buflen) +{ + char path[SYSFS_PATH_MAX]; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpuidle/%s", fname); + + return cpupower_read_sysfs(path, buf, buflen); +} + + + +/* read access to files which contain one string */ + +enum cpuidle_string { + CPUIDLE_GOVERNOR, + CPUIDLE_GOVERNOR_RO, + CPUIDLE_DRIVER, + MAX_CPUIDLE_STRING_FILES +}; + +static const char *cpuidle_string_files[MAX_CPUIDLE_STRING_FILES] = { + [CPUIDLE_GOVERNOR] = "current_governor", + [CPUIDLE_GOVERNOR_RO] = "current_governor_ro", + [CPUIDLE_DRIVER] = "current_driver", +}; + + +static char *sysfs_cpuidle_get_one_string(enum cpuidle_string which) +{ + char linebuf[MAX_LINE_LEN]; + char *result; + unsigned int len; + + if (which >= MAX_CPUIDLE_STRING_FILES) + return NULL; + + len = sysfs_cpuidle_read_file(cpuidle_string_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return NULL; + + result = strdup(linebuf); + if (result == NULL) + return NULL; + + if (result[strlen(result) - 1] == '\n') + result[strlen(result) - 1] = '\0'; + + return result; +} + +char *cpuidle_get_governor(void) +{ + char *tmp = sysfs_cpuidle_get_one_string(CPUIDLE_GOVERNOR_RO); + if (!tmp) + return sysfs_cpuidle_get_one_string(CPUIDLE_GOVERNOR); + else + return tmp; +} + +char *cpuidle_get_driver(void) +{ + return sysfs_cpuidle_get_one_string(CPUIDLE_DRIVER); +} +/* CPUidle idlestate specific /sys/devices/system/cpu/cpuX/cpuidle/ access */ diff --git a/tools/power/cpupower/lib/cpuidle.h b/tools/power/cpupower/lib/cpuidle.h new file mode 100644 index 000000000..2e10fead2 --- /dev/null +++ b/tools/power/cpupower/lib/cpuidle.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __CPUPOWER_CPUIDLE_H__ +#define __CPUPOWER_CPUIDLE_H__ + +int cpuidle_is_state_disabled(unsigned int cpu, + unsigned int idlestate); +int cpuidle_state_disable(unsigned int cpu, unsigned int idlestate, + unsigned int disable); +unsigned long cpuidle_state_latency(unsigned int cpu, + unsigned int idlestate); +unsigned long cpuidle_state_usage(unsigned int cpu, + unsigned int idlestate); +unsigned long long cpuidle_state_time(unsigned int cpu, + unsigned int idlestate); +char *cpuidle_state_name(unsigned int cpu, + unsigned int idlestate); +char *cpuidle_state_desc(unsigned int cpu, + unsigned int idlestate); +unsigned int cpuidle_state_count(unsigned int cpu); + +char *cpuidle_get_governor(void); +char *cpuidle_get_driver(void); + +#endif /* __CPUPOWER_HELPERS_SYSFS_H__ */ diff --git a/tools/power/cpupower/lib/cpupower.c b/tools/power/cpupower/lib/cpupower.c new file mode 100644 index 000000000..9711d628b --- /dev/null +++ b/tools/power/cpupower/lib/cpupower.c @@ -0,0 +1,192 @@ +/* + * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de> + * + * Licensed under the terms of the GNU GPL License version 2. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> + +#include "cpupower.h" +#include "cpupower_intern.h" + +unsigned int cpupower_read_sysfs(const char *path, char *buf, size_t buflen) +{ + int fd; + ssize_t numread; + + fd = open(path, O_RDONLY); + if (fd == -1) + return 0; + + numread = read(fd, buf, buflen - 1); + if (numread < 1) { + close(fd); + return 0; + } + + buf[numread] = '\0'; + close(fd); + + return (unsigned int) numread; +} + +/* + * Detect whether a CPU is online + * + * Returns: + * 1 -> if CPU is online + * 0 -> if CPU is offline + * negative errno values in error case + */ +int cpupower_is_cpu_online(unsigned int cpu) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numread; + unsigned long long value; + char linebuf[MAX_LINE_LEN]; + char *endp; + struct stat statbuf; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u", cpu); + + if (stat(path, &statbuf) != 0) + return 0; + + /* + * kernel without CONFIG_HOTPLUG_CPU + * -> cpuX directory exists, but not cpuX/online file + */ + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/online", cpu); + if (stat(path, &statbuf) != 0) + return 1; + + fd = open(path, O_RDONLY); + if (fd == -1) + return -errno; + + numread = read(fd, linebuf, MAX_LINE_LEN - 1); + if (numread < 1) { + close(fd); + return -EIO; + } + linebuf[numread] = '\0'; + close(fd); + + value = strtoull(linebuf, &endp, 0); + if (value > 1) + return -EINVAL; + + return value; +} + +/* returns -1 on failure, 0 on success */ +static int sysfs_topology_read_file(unsigned int cpu, const char *fname, int *result) +{ + char linebuf[MAX_LINE_LEN]; + char *endp; + char path[SYSFS_PATH_MAX]; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/topology/%s", + cpu, fname); + if (cpupower_read_sysfs(path, linebuf, MAX_LINE_LEN) == 0) + return -1; + *result = strtol(linebuf, &endp, 0); + if (endp == linebuf || errno == ERANGE) + return -1; + return 0; +} + +static int __compare(const void *t1, const void *t2) +{ + struct cpuid_core_info *top1 = (struct cpuid_core_info *)t1; + struct cpuid_core_info *top2 = (struct cpuid_core_info *)t2; + if (top1->pkg < top2->pkg) + return -1; + else if (top1->pkg > top2->pkg) + return 1; + else if (top1->core < top2->core) + return -1; + else if (top1->core > top2->core) + return 1; + else if (top1->cpu < top2->cpu) + return -1; + else if (top1->cpu > top2->cpu) + return 1; + else + return 0; +} + +/* + * Returns amount of cpus, negative on error, cpu_top must be + * passed to cpu_topology_release to free resources + * + * Array is sorted after ->pkg, ->core, then ->cpu + */ +int get_cpu_topology(struct cpupower_topology *cpu_top) +{ + int cpu, last_pkg, cpus = sysconf(_SC_NPROCESSORS_CONF); + + cpu_top->core_info = malloc(sizeof(struct cpuid_core_info) * cpus); + if (cpu_top->core_info == NULL) + return -ENOMEM; + cpu_top->pkgs = cpu_top->cores = 0; + for (cpu = 0; cpu < cpus; cpu++) { + cpu_top->core_info[cpu].cpu = cpu; + cpu_top->core_info[cpu].is_online = cpupower_is_cpu_online(cpu); + if(sysfs_topology_read_file( + cpu, + "physical_package_id", + &(cpu_top->core_info[cpu].pkg)) < 0) { + cpu_top->core_info[cpu].pkg = -1; + cpu_top->core_info[cpu].core = -1; + continue; + } + if(sysfs_topology_read_file( + cpu, + "core_id", + &(cpu_top->core_info[cpu].core)) < 0) { + cpu_top->core_info[cpu].pkg = -1; + cpu_top->core_info[cpu].core = -1; + continue; + } + } + + qsort(cpu_top->core_info, cpus, sizeof(struct cpuid_core_info), + __compare); + + /* Count the number of distinct pkgs values. This works + because the primary sort of the core_info struct was just + done by pkg value. */ + last_pkg = cpu_top->core_info[0].pkg; + for(cpu = 1; cpu < cpus; cpu++) { + if (cpu_top->core_info[cpu].pkg != last_pkg && + cpu_top->core_info[cpu].pkg != -1) { + + last_pkg = cpu_top->core_info[cpu].pkg; + cpu_top->pkgs++; + } + } + if (!(cpu_top->core_info[0].pkg == -1)) + cpu_top->pkgs++; + + /* Intel's cores count is not consecutively numbered, there may + * be a core_id of 3, but none of 2. Assume there always is 0 + * Get amount of cores by counting duplicates in a package + for (cpu = 0; cpu_top->core_info[cpu].pkg = 0 && cpu < cpus; cpu++) { + if (cpu_top->core_info[cpu].core == 0) + cpu_top->cores++; + */ + return cpus; +} + +void cpu_topology_release(struct cpupower_topology cpu_top) +{ + free(cpu_top.core_info); +} diff --git a/tools/power/cpupower/lib/cpupower.h b/tools/power/cpupower/lib/cpupower.h new file mode 100644 index 000000000..e4e4292ea --- /dev/null +++ b/tools/power/cpupower/lib/cpupower.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __CPUPOWER_CPUPOWER_H__ +#define __CPUPOWER_CPUPOWER_H__ + +struct cpupower_topology { + /* Amount of CPU cores, packages and threads per core in the system */ + unsigned int cores; + unsigned int pkgs; + unsigned int threads; /* per core */ + + /* Array gets mallocated with cores entries, holding per core info */ + struct cpuid_core_info *core_info; +}; + +struct cpuid_core_info { + int pkg; + int core; + int cpu; + + /* flags */ + unsigned int is_online:1; +}; + +#ifdef __cplusplus +extern "C" { +#endif + +int get_cpu_topology(struct cpupower_topology *cpu_top); +void cpu_topology_release(struct cpupower_topology cpu_top); +int cpupower_is_cpu_online(unsigned int cpu); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/tools/power/cpupower/lib/cpupower_intern.h b/tools/power/cpupower/lib/cpupower_intern.h new file mode 100644 index 000000000..4887c76d2 --- /dev/null +++ b/tools/power/cpupower/lib/cpupower_intern.h @@ -0,0 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#define PATH_TO_CPU "/sys/devices/system/cpu/" +#define MAX_LINE_LEN 4096 +#define SYSFS_PATH_MAX 255 + +unsigned int cpupower_read_sysfs(const char *path, char *buf, size_t buflen); diff --git a/tools/power/cpupower/man/cpupower-frequency-info.1 b/tools/power/cpupower/man/cpupower-frequency-info.1 new file mode 100644 index 000000000..6aa8d239d --- /dev/null +++ b/tools/power/cpupower/man/cpupower-frequency-info.1 @@ -0,0 +1,77 @@ +.TH "CPUPOWER\-FREQUENCY\-INFO" "1" "0.1" "" "cpupower Manual" +.SH "NAME" +.LP +cpupower\-frequency\-info \- Utility to retrieve cpufreq kernel information +.SH "SYNTAX" +.LP +cpupower [ \-c cpulist ] frequency\-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\-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\-n\fR \fB\-\-no-rounding\fR +Output frequencies and latencies without rounding off values. +.TP +.SH "REMARKS" +.LP +By default only values of core zero are displayed. How to display settings of +other cores is described in the cpupower(1) manpage in the \-\-cpu option section. +.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 +cpupower\-frequency\-set(1), cpupower(1) diff --git a/tools/power/cpupower/man/cpupower-frequency-set.1 b/tools/power/cpupower/man/cpupower-frequency-set.1 new file mode 100644 index 000000000..b50570221 --- /dev/null +++ b/tools/power/cpupower/man/cpupower-frequency-set.1 @@ -0,0 +1,52 @@ +.TH "CPUPOWER\-FREQUENCY\-SET" "1" "0.1" "" "cpupower Manual" +.SH "NAME" +.LP +cpupower\-frequency\-set \- A small tool which allows to modify cpufreq settings. +.SH "SYNTAX" +.LP +cpupower [ \-c cpu ] frequency\-set [\fIoptions\fP] +.SH "DESCRIPTION" +.LP +cpupower frequency\-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\-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 +.SH "REMARKS" +.LP +By default values are applied on all cores. How to modify single core +configurations is described in the cpupower(1) manpage in the \-\-cpu option section. +.LP +The \-f FREQ, \-\-freq FREQ parameter cannot be combined with any other 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 +cpupower\-frequency\-info(1), cpupower(1) diff --git a/tools/power/cpupower/man/cpupower-idle-info.1 b/tools/power/cpupower/man/cpupower-idle-info.1 new file mode 100644 index 000000000..80a1311fa --- /dev/null +++ b/tools/power/cpupower/man/cpupower-idle-info.1 @@ -0,0 +1,91 @@ +.TH "CPUPOWER-IDLE-INFO" "1" "0.1" "" "cpupower Manual" +.SH "NAME" +.LP +cpupower\-idle\-info \- Utility to retrieve cpu idle kernel information +.SH "SYNTAX" +.LP +cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP] +.SH "DESCRIPTION" +.LP +A tool which prints out per cpu idle information helpful to developers and interested users. +.SH "OPTIONS" +.LP +.TP +\fB\-f\fR \fB\-\-silent\fR +Only print a summary of all available C-states in the system. +.TP +\fB\-e\fR \fB\-\-proc\fR +deprecated. +Prints out idle information in old /proc/acpi/processor/*/power format. This +interface has been removed from the kernel for quite some time, do not let +further code depend on this option, best do not use it. + +.SH IDLE\-INFO DESCRIPTIONS +CPU sleep state statistics and descriptions are retrieved from sysfs files, +exported by the cpuidle kernel subsystem. The kernel only updates these +statistics when it enters or leaves an idle state, therefore on a very idle or +a very busy system, these statistics may not be accurate. They still provide a +good overview about the usage and availability of processor sleep states on +the platform. + +Be aware that the sleep states as exported by the hardware or BIOS and used by +the Linux kernel may not exactly reflect the capabilities of the +processor. This often is the case on the X86 architecture when the acpi_idle +driver is used. It is also possible that the hardware overrules the kernel +requests, due to internal activity monitors or other reasons. +On recent X86 platforms it is often possible to read out hardware registers +which monitor the duration of sleep states the processor resided in. The +cpupower monitor tool (cpupower\-monitor(1)) can be used to show real sleep +state residencies. Please refer to the architecture specific description +section below. + +.SH IDLE\-INFO ARCHITECTURE SPECIFIC DESCRIPTIONS +.SS "X86" +POLL idle state + +If cpuidle is active, X86 platforms have one special idle state. +The POLL idle state is not a real idle state, it does not save any +power. Instead, a busy\-loop is executed doing nothing for a short period of +time. This state is used if the kernel knows that work has to be processed +very soon and entering any real hardware idle state may result in a slight +performance penalty. + +There exist two different cpuidle drivers on the X86 architecture platform: + +"acpi_idle" cpuidle driver + +The acpi_idle cpuidle driver retrieves available sleep states (C\-states) from +the ACPI BIOS tables (from the _CST ACPI function on recent platforms or from +the FADT BIOS table on older ones). +The C1 state is not retrieved from ACPI tables. If the C1 state is entered, +the kernel will call the hlt instruction (or mwait on Intel). + +"intel_idle" cpuidle driver + +In kernel 2.6.36 the intel_idle driver was introduced. +It only serves recent Intel CPUs (Nehalem, Westmere, Sandybridge, Atoms or +newer). On older Intel CPUs the acpi_idle driver is still used (if the BIOS +provides C\-state ACPI tables). +The intel_idle driver knows the sleep state capabilities of the processor and +ignores ACPI BIOS exported processor sleep states tables. + +.SH "REMARKS" +.LP +By default only values of core zero are displayed. How to display settings of +other cores is described in the cpupower(1) manpage in the \-\-cpu option +section. +.SH REFERENCES +http://www.acpi.info/spec.htm +.SH "FILES" +.nf +\fI/sys/devices/system/cpu/cpu*/cpuidle/state*\fP +\fI/sys/devices/system/cpu/cpuidle/*\fP +.fi +.SH "AUTHORS" +.nf +Thomas Renninger <trenn@suse.de> +.fi +.SH "SEE ALSO" +.LP +cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1), +cpupower\-idle\-set(1) diff --git a/tools/power/cpupower/man/cpupower-idle-set.1 b/tools/power/cpupower/man/cpupower-idle-set.1 new file mode 100644 index 000000000..21916cff7 --- /dev/null +++ b/tools/power/cpupower/man/cpupower-idle-set.1 @@ -0,0 +1,79 @@ +.TH "CPUPOWER-IDLE-SET" "1" "0.1" "" "cpupower Manual" +.SH "NAME" +.LP +cpupower\-idle\-set \- Utility to set cpu idle state specific kernel options +.SH "SYNTAX" +.LP +cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP] +.SH "DESCRIPTION" +.LP +The cpupower idle\-set subcommand allows to set cpu idle, also called cpu +sleep state, specific options offered by the kernel. One example is disabling +sleep states. This can be handy for power vs performance tuning. +.SH "OPTIONS" +.LP +.TP +\fB\-d\fR \fB\-\-disable\fR <STATE_NO> +Disable a specific processor sleep state. +.TP +\fB\-e\fR \fB\-\-enable\fR <STATE_NO> +Enable a specific processor sleep state. +.TP +\fB\-D\fR \fB\-\-disable-by-latency\fR <LATENCY> +Disable all idle states with a equal or higher latency than <LATENCY>. + +Enable all idle states with a latency lower than <LATENCY>. +.TP +\fB\-E\fR \fB\-\-enable-all\fR +Enable all idle states if not enabled already. + +.SH "REMARKS" +.LP +Cpuidle Governors Policy on Disabling Sleep States + +.RS 4 +Depending on the used cpuidle governor, implementing the kernel policy +how to choose sleep states, subsequent sleep states on this core, might get +disabled as well. + +There are two cpuidle governors ladder and menu. While the ladder +governor is always available, if CONFIG_CPU_IDLE is selected, the +menu governor additionally requires CONFIG_NO_HZ. + +The behavior and the effect of the disable variable depends on the +implementation of a particular governor. In the ladder governor, for +example, it is not coherent, i.e. if one is disabling a light state, +then all deeper states are disabled as well. Likewise, if one enables a +deep state but a lighter state still is disabled, then this has no effect. +.RE +.LP +Disabling the Lightest Sleep State may not have any Affect + +.RS 4 +If criteria are not met to enter deeper sleep states and the lightest sleep +state is chosen when idle, the kernel may still enter this sleep state, +irrespective of whether it is disabled or not. This is also reflected in +the usage count of the disabled sleep state when using the cpupower idle-info +command. +.RE +.LP +Selecting specific CPU Cores + +.RS 4 +By default processor sleep states of all CPU cores are set. Please refer +to the cpupower(1) manpage in the \-\-cpu option section how to disable +C-states of specific cores. +.RE +.SH "FILES" +.nf +\fI/sys/devices/system/cpu/cpu*/cpuidle/state*\fP +\fI/sys/devices/system/cpu/cpuidle/*\fP +.fi +.SH "AUTHORS" +.nf +Thomas Renninger <trenn@suse.de> +.fi +.SH "SEE ALSO" +.LP +cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1), +cpupower\-idle\-info(1) diff --git a/tools/power/cpupower/man/cpupower-info.1 b/tools/power/cpupower/man/cpupower-info.1 new file mode 100644 index 000000000..340bcd0be --- /dev/null +++ b/tools/power/cpupower/man/cpupower-info.1 @@ -0,0 +1,19 @@ +.TH CPUPOWER\-INFO "1" "22/02/2011" "" "cpupower Manual" +.SH NAME +cpupower\-info \- Shows processor power related kernel or hardware configurations +.SH SYNOPSIS +.ft B +.B cpupower info [ \-b ] + +.SH DESCRIPTION +\fBcpupower info \fP shows kernel configurations or processor hardware +registers affecting processor power saving policies. + +Some options are platform wide, some affect single cores. By default values +of core zero are displayed only. cpupower --cpu all cpuinfo will show the +settings of all cores, see cpupower(1) how to choose specific cores. + +.SH "SEE ALSO" +Options are described in detail in: + +cpupower(1), cpupower-set(1) diff --git a/tools/power/cpupower/man/cpupower-monitor.1 b/tools/power/cpupower/man/cpupower-monitor.1 new file mode 100644 index 000000000..914cbb9d9 --- /dev/null +++ b/tools/power/cpupower/man/cpupower-monitor.1 @@ -0,0 +1,198 @@ +.TH CPUPOWER\-MONITOR "1" "22/02/2011" "" "cpupower Manual" +.SH NAME +cpupower\-monitor \- Report processor frequency and idle statistics +.SH SYNOPSIS +.ft B +.B cpupower monitor +.RB "\-l" + +.B cpupower monitor +.RB [ -c ] [ "\-m <mon1>," [ "<mon2>,..." ] ] +.RB [ "\-i seconds" ] +.br +.B cpupower monitor +.RB [ -c ][ "\-m <mon1>," [ "<mon2>,..." ] ] +.RB command +.br +.SH DESCRIPTION +\fBcpupower-monitor \fP reports processor topology, frequency and idle power +state statistics. Either \fBcommand\fP is forked and +statistics are printed upon its completion, or statistics are printed periodically. + +\fBcpupower-monitor \fP implements independent processor sleep state and +frequency counters. Some are retrieved from kernel statistics, some are +directly reading out hardware registers. Use \-l to get an overview which are +supported on your system. + +.SH Options +.PP +\-l +.RS 4 +List available monitors on your system. Additional details about each monitor +are shown: +.RS 2 +.IP \(bu +The name in quotation marks which can be passed to the \-m parameter. +.IP \(bu +The number of different counters the monitor supports in brackets. +.IP \(bu +The amount of time in seconds the counters might overflow, due to +implementation constraints. +.IP \(bu +The name and a description of each counter and its processor hierarchy level +coverage in square brackets: +.RS 4 +.IP \(bu +[T] \-> Thread +.IP \(bu +[C] \-> Core +.IP \(bu +[P] \-> Processor Package (Socket) +.IP \(bu +[M] \-> Machine/Platform wide counter +.RE +.RE +.RE +.PP +\-m <mon1>,<mon2>,... +.RS 4 +Only display specific monitors. Use the monitor string(s) provided by \-l option. +.RE +.PP +\-i seconds +.RS 4 +Measure intervall. +.RE +.PP +\-c +.RS 4 +Schedule the process on every core before starting and ending measuring. +This could be needed for the Idle_Stats monitor when no other MSR based +monitor (has to be run on the core that is measured) is run in parallel. +This is to wake up the processors from deeper sleep states and let the +kernel re +-account its cpuidle (C-state) information before reading the +cpuidle timings from sysfs. +.RE +.PP +command +.RS 4 +Measure idle and frequency characteristics of an arbitrary command/workload. +The executable \fBcommand\fP is forked and upon its exit, statistics gathered since it was +forked are displayed. +.RE +.PP +\-v +.RS 4 +Increase verbosity if the binary was compiled with the DEBUG option set. +.RE + +.SH MONITOR DESCRIPTIONS +.SS "Idle_Stats" +Shows statistics of the cpuidle kernel subsystem. Values are retrieved from +/sys/devices/system/cpu/cpu*/cpuidle/state*/. +The kernel updates these values every time an idle state is entered or +left. Therefore there can be some inaccuracy when cores are in an idle +state for some time when the measure starts or ends. In worst case it can happen +that one core stayed in an idle state for the whole measure time and the idle +state usage time as exported by the kernel did not get updated. In this case +a state residency of 0 percent is shown while it was 100. + +.SS "Mperf" +The name comes from the aperf/mperf (average and maximum) MSR registers used +which are available on recent X86 processors. It shows the average frequency +(including boost frequencies). +The fact that on all recent hardware the mperf timer stops ticking in any idle +state it is also used to show C0 (processor is active) and Cx (processor is in +any sleep state) times. These counters do not have the inaccuracy restrictions +the "Idle_Stats" counters may show. +May work poorly on Linux-2.6.20 through 2.6.29, as the \fBacpi-cpufreq \fP +kernel frequency driver periodically cleared aperf/mperf registers in those +kernels. + +.SS "Nehalem" "SandyBridge" "HaswellExtended" +Intel Core and Package sleep state counters. +Threads (hyperthreaded cores) may not be able to enter deeper core states if +its sibling is utilized. +Deepest package sleep states may in reality show up as machine/platform wide +sleep states and can only be entered if all cores are idle. Look up Intel +manuals (some are provided in the References section) for further details. +The monitors are named after the CPU family where the sleep state capabilities +got introduced and may not match exactly the CPU name of the platform. +For example an IvyBridge processor has sleep state capabilities which got +introduced in Nehalem and SandyBridge processor families. +Thus on an IvyBridge processor one will get Nehalem and SandyBridge sleep +state monitors. +HaswellExtended extra package sleep state capabilities are available only in a +specific Haswell (family 0x45) and probably also other future processors. + +.SS "Fam_12h" "Fam_14h" +AMD laptop and desktop processor (family 12h and 14h) sleep state counters. +The registers are accessed via PCI and therefore can still be read out while +cores have been offlined. + +There is one special counter: NBP1 (North Bridge P1). +This one always returns 0 or 1, depending on whether the North Bridge P1 +power state got entered at least once during measure time. +Being able to enter NBP1 state also depends on graphics power management. +Therefore this counter can be used to verify whether the graphics' driver +power management is working as expected. + +.SH EXAMPLES + +cpupower monitor -l" may show: +.RS 4 +Monitor "Mperf" (3 states) \- Might overflow after 922000000 s + + ... + +Monitor "Idle_Stats" (3 states) \- Might overflow after 4294967295 s + + ... + +.RE +cpupower monitor \-m "Idle_Stats,Mperf" scp /tmp/test /nfs/tmp + +Monitor the scp command, show both Mperf and Idle_Stats states counter +statistics, but in exchanged order. + + + +.RE +Be careful that the typical command to fully utilize one CPU by doing: + +cpupower monitor cat /dev/zero >/dev/null + +Does not work as expected, because the measured output is redirected to +/dev/null. This could get workarounded by putting the line into an own, tiny +shell script. Hit CTRL\-c to terminate the command and get the measure output +displayed. + +.SH REFERENCES +"BIOS and Kernel Developer’s Guide (BKDG) for AMD Family 14h Processors" +http://support.amd.com/us/Processor_TechDocs/43170.pdf + +"Intel® Turbo Boost Technology +in Intel® Core™ Microarchitecture (Nehalem) Based Processors" +http://download.intel.com/design/processor/applnots/320354.pdf + +"Intel® 64 and IA-32 Architectures Software Developer's Manual +Volume 3B: System Programming Guide" +http://www.intel.com/products/processor/manuals + +.SH FILES +.ta +.nf +/dev/cpu/*/msr +/sys/devices/system/cpu/cpu*/cpuidle/state*/. +.fi + +.SH "SEE ALSO" +powertop(8), msr(4), vmstat(8) +.PP +.SH AUTHORS +.nf +Written by Thomas Renninger <trenn@suse.de> + +Nehalem, SandyBridge monitors and command passing +based on turbostat.8 from Len Brown <len.brown@intel.com> diff --git a/tools/power/cpupower/man/cpupower-set.1 b/tools/power/cpupower/man/cpupower-set.1 new file mode 100644 index 000000000..2bcc696f4 --- /dev/null +++ b/tools/power/cpupower/man/cpupower-set.1 @@ -0,0 +1,65 @@ +.TH CPUPOWER\-SET "1" "22/02/2011" "" "cpupower Manual" +.SH NAME +cpupower\-set \- Set processor power related kernel or hardware configurations +.SH SYNOPSIS +.ft B +.B cpupower set [ \-b VAL ] + + +.SH DESCRIPTION +\fBcpupower set \fP sets kernel configurations or directly accesses hardware +registers affecting processor power saving policies. + +Some options are platform wide, some affect single cores. By default values +are applied on all cores. How to modify single core configurations is +described in the cpupower(1) manpage in the \-\-cpu option section. Whether an +option affects the whole system or can be applied to individual cores is +described in the Options sections. + +Use \fBcpupower info \fP to read out current settings and whether they are +supported on the system at all. + +.SH Options +.PP +\-\-perf-bias, \-b +.RS 4 +Sets a register on supported Intel processore which allows software to convey +its policy for the relative importance of performance versus energy savings to +the processor. + +The range of valid numbers is 0-15, where 0 is maximum +performance and 15 is maximum energy efficiency. + +The processor uses this information in model-specific ways +when it must select trade-offs between performance and +energy efficiency. + +This policy hint does not supersede Processor Performance states +(P-states) or CPU Idle power states (C-states), but allows +software to have influence where it would otherwise be unable +to express a preference. + +For example, this setting may tell the hardware how +aggressively or conservatively to control frequency +in the "turbo range" above the explicitly OS-controlled +P-state frequency range. It may also tell the hardware +how aggressively it should enter the OS requested C-states. + +This option can be applied to individual cores only via the \-\-cpu option, +cpupower(1). + +Setting the performance bias value on one CPU can modify the setting on +related CPUs as well (for example all CPUs on one socket), because of +hardware restrictions. +Use \fBcpupower -c all info -b\fP to verify. + +This options needs the msr kernel driver (CONFIG_X86_MSR) loaded. +.RE + +.SH "SEE ALSO" +cpupower-info(1), cpupower-monitor(1), powertop(1) +.PP +.SH AUTHORS +.nf +\-\-perf\-bias parts written by Len Brown <len.brown@intel.com> +Thomas Renninger <trenn@suse.de> diff --git a/tools/power/cpupower/man/cpupower.1 b/tools/power/cpupower/man/cpupower.1 new file mode 100644 index 000000000..baf741d06 --- /dev/null +++ b/tools/power/cpupower/man/cpupower.1 @@ -0,0 +1,72 @@ +.TH CPUPOWER "1" "07/03/2011" "" "cpupower Manual" +.SH NAME +cpupower \- Shows and sets processor power related values +.SH SYNOPSIS +.ft B +.B cpupower [ \-c cpulist ] <command> [ARGS] + +.B cpupower \-v|\-\-version + +.B cpupower \-h|\-\-help + +.SH DESCRIPTION +\fBcpupower \fP is a collection of tools to examine and tune power saving +related features of your processor. + +The manpages of the commands (cpupower\-<command>(1)) provide detailed +descriptions of supported features. Run \fBcpupower help\fP to get an overview +of supported commands. + +.SH Options +.PP +\-\-help, \-h +.RS 4 +Shows supported commands and general usage. +.RE +.PP +\-\-cpu cpulist, \-c cpulist +.RS 4 +Only show or set values for specific cores. +This option is not supported by all commands, details can be found in the +manpages of the commands. + +Some commands access all cores (typically the *\-set commands), some only +the first core (typically the *\-info commands) by default. + +The syntax for <cpulist> is based on how the kernel exports CPU bitmasks via +sysfs files. Some examples: +.RS 4 +.TP 16 +Input +Equivalent to +.TP +all +all cores +.TP +0\-3 +0,1,2,3 +.TP +0\-7:2 +0,2,4,6 +.TP +1,3,5-7 +1,3,5,6,7 +.TP +0\-3:2,8\-15:4 +0,2,8,12 +.RE +.RE +.PP +\-\-version, \-v +.RS 4 +Print the package name and version number. + +.SH "SEE ALSO" +cpupower-set(1), cpupower-info(1), cpupower-idle(1), +cpupower-frequency-set(1), cpupower-frequency-info(1), cpupower-monitor(1), +powertop(1) +.PP +.SH AUTHORS +.nf +\-\-perf\-bias parts written by Len Brown <len.brown@intel.com> +Thomas Renninger <trenn@suse.de> diff --git a/tools/power/cpupower/po/cs.po b/tools/power/cpupower/po/cs.po new file mode 100644 index 000000000..cb22c45c5 --- /dev/null +++ b/tools/power/cpupower/po/cs.po @@ -0,0 +1,944 @@ +# 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: 2011-03-08 17:03+0100\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" +"Language: cs\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/idle_monitor/nhm_idle.c:36 +msgid "Processor Core C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:43 +msgid "Processor Core C6" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:51 +msgid "Processor Package C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:58 utils/idle_monitor/amd_fam14h_idle.c:70 +msgid "Processor Package C6" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:33 +msgid "Processor Core C7" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:40 +msgid "Processor Package C2" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:47 +msgid "Processor Package C7" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:56 +msgid "Package in sleep state (PC1 or deeper)" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:63 +msgid "Processor Package C1" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:77 +msgid "North Bridge P1 boolean counter (returns 0 or 1)" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:35 +msgid "Processor Core not idle" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:42 +msgid "Processor Core in an idle state" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:50 +msgid "Average Frequency (including boost) in MHz" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:66 +#, c-format +msgid "" +"cpupower monitor: [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:69 +#, c-format +msgid "" +"cpupower monitor: [-v] [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:71 +#, c-format +msgid "\t -v: be more verbose\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:73 +#, c-format +msgid "\t -h: print this help\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:74 +#, c-format +msgid "\t -i: time intervall to measure for in seconds (default 1)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:75 +#, c-format +msgid "\t -t: show CPU topology/hierarchy\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:76 +#, c-format +msgid "\t -l: list available CPU sleep monitors (for use with -m)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:77 +#, c-format +msgid "\t -m: show specific CPU sleep monitors only (in same order)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:79 +#, c-format +msgid "" +"only one of: -t, -l, -m are allowed\n" +"If none of them is passed," +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:80 +#, c-format +msgid " all supported monitors are shown\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:197 +#, c-format +msgid "Monitor %s, Counter %s has no count function. Implementation error\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:207 +#, c-format +msgid " *is offline\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:236 +#, c-format +msgid "%s: max monitor name length (%d) exceeded\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:250 +#, c-format +msgid "No matching monitor found in %s, try -l option\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:266 +#, c-format +msgid "Monitor \"%s\" (%d states) - Might overflow after %u s\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:319 +#, c-format +msgid "%s took %.5f seconds and exited with status %d\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:406 +#, c-format +msgid "Cannot read number of available processors\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:417 +#, c-format +msgid "Available monitor %s needs root access\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:428 +#, c-format +msgid "No HW Cstate monitors found\n" +msgstr "" + +#: utils/cpupower.c:78 +#, c-format +msgid "cpupower [ -c cpulist ] subcommand [ARGS]\n" +msgstr "" + +#: utils/cpupower.c:79 +#, c-format +msgid "cpupower --version\n" +msgstr "" + +#: utils/cpupower.c:80 +#, c-format +msgid "Supported subcommands are:\n" +msgstr "" + +#: utils/cpupower.c:83 +#, c-format +msgid "" +"\n" +"Some subcommands can make use of the -c cpulist option.\n" +msgstr "" + +#: utils/cpupower.c:84 +#, c-format +msgid "Look at the general cpupower manpage how to use it\n" +msgstr "" + +#: utils/cpupower.c:85 +#, c-format +msgid "and read up the subcommand's manpage whether it is supported.\n" +msgstr "" + +#: utils/cpupower.c:86 +#, c-format +msgid "" +"\n" +"Use cpupower help subcommand for getting help for above subcommands.\n" +msgstr "" + +#: utils/cpupower.c:91 +#, 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/cpupower.c:114 +#, c-format +msgid "Error parsing cpu list\n" +msgstr "" + +#: utils/cpupower.c:172 +#, c-format +msgid "Subcommand %s needs root privileges\n" +msgstr "" + +#: utils/cpufreq-info.c:31 +#, 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/cpufreq-info.c:63 +#, c-format +msgid "" +" minimum CPU frequency - maximum CPU frequency - governor\n" +msgstr "" +" minimální frekvence CPU - maximální frekvence CPU - regulátor\n" + +#: utils/cpufreq-info.c:151 +#, c-format +msgid "Error while evaluating Boost Capabilities on CPU %d -- are you root?\n" +msgstr "" + +#. P state changes via MSR are identified via cpuid 80000007 +#. on Intel and AMD, but we assume boost capable machines can do that +#. if (cpuid_eax(0x80000000) >= 0x80000007 +#. && (cpuid_edx(0x80000007) & (1 << 7))) +#. +#: utils/cpufreq-info.c:161 +#, c-format +msgid " boost state support: \n" +msgstr "" + +#: utils/cpufreq-info.c:163 +#, c-format +msgid " Supported: %s\n" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "yes" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "no" +msgstr "" + +#: utils/cpufreq-info.c:164 +#, fuzzy, c-format +msgid " Active: %s\n" +msgstr " ovladač: %s\n" + +#: utils/cpufreq-info.c:177 +#, c-format +msgid " Boost States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:178 +#, c-format +msgid " Total States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:181 +#, c-format +msgid " Pstate-Pb%d: %luMHz (boost state)\n" +msgstr "" + +#: utils/cpufreq-info.c:184 +#, c-format +msgid " Pstate-P%d: %luMHz\n" +msgstr "" + +#: utils/cpufreq-info.c:211 +#, 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/cpufreq-info.c:213 +#, c-format +msgid " driver: %s\n" +msgstr " ovladač: %s\n" + +#: utils/cpufreq-info.c:219 +#, fuzzy, c-format +msgid " CPUs which run at the same hardware frequency: " +msgstr " CPU, které musí měnit frekvenci zároveň: " + +#: utils/cpufreq-info.c:230 +#, fuzzy, c-format +msgid " CPUs which need to have their frequency coordinated by software: " +msgstr " CPU, které musí měnit frekvenci zároveň: " + +#: utils/cpufreq-info.c:241 +#, c-format +msgid " maximum transition latency: " +msgstr "" + +#: utils/cpufreq-info.c:247 +#, c-format +msgid " hardware limits: " +msgstr " hardwarové meze: " + +#: utils/cpufreq-info.c:256 +#, c-format +msgid " available frequency steps: " +msgstr " dostupné frekvence: " + +#: utils/cpufreq-info.c:269 +#, c-format +msgid " available cpufreq governors: " +msgstr " dostupné regulátory: " + +#: utils/cpufreq-info.c:280 +#, c-format +msgid " current policy: frequency should be within " +msgstr " současná taktika: frekvence by měla být mezi " + +#: utils/cpufreq-info.c:282 +#, c-format +msgid " and " +msgstr " a " + +#: utils/cpufreq-info.c:286 +#, 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/cpufreq-info.c:293 +#, c-format +msgid " current CPU frequency is " +msgstr " současná frekvence CPU je " + +#: utils/cpufreq-info.c:296 +#, c-format +msgid " (asserted by call to hardware)" +msgstr " (zjištěno hardwarovým voláním)" + +#: utils/cpufreq-info.c:304 +#, c-format +msgid " cpufreq stats: " +msgstr " statistika cpufreq: " + +#: utils/cpufreq-info.c:472 +#, fuzzy, c-format +msgid "Usage: cpupower freqinfo [options]\n" +msgstr "Užití: cpufreq-info [přepínače]\n" + +#: utils/cpufreq-info.c:473 utils/cpufreq-set.c:26 utils/cpupower-set.c:23 +#: utils/cpupower-info.c:22 utils/cpuidle-info.c:148 +#, c-format +msgid "Options:\n" +msgstr "Přepínače:\n" + +#: utils/cpufreq-info.c:474 +#, fuzzy, c-format +msgid " -e, --debug Prints out debug information [default]\n" +msgstr " -e, --debug Vypíše ladicí informace\n" + +#: utils/cpufreq-info.c:475 +#, 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/cpufreq-info.c:477 +#, 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/cpufreq-info.c:479 +#, 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/cpufreq-info.c:480 +#, c-format +msgid " -d, --driver Determines the used cpufreq kernel driver *\n" +msgstr " -d, --driver Zjistí aktivní ovladač cpufreq *\n" + +#: utils/cpufreq-info.c:481 +#, c-format +msgid " -p, --policy Gets the currently used cpufreq policy *\n" +msgstr " -p, --policy Zjistí aktuální taktiku cpufreq *\n" + +#: utils/cpufreq-info.c:482 +#, c-format +msgid " -g, --governors Determines available cpufreq governors *\n" +msgstr " -g, --governors Zjistí dostupné regulátory cpufreq *\n" + +#: utils/cpufreq-info.c:483 +#, fuzzy, c-format +msgid "" +" -r, --related-cpus Determines which CPUs run at the same hardware " +"frequency *\n" +msgstr "" +" -a, --affected-cpus Zjistí, které CPU musí měnit frekvenci zároveň *\n" + +#: utils/cpufreq-info.c:484 +#, fuzzy, c-format +msgid "" +" -a, --affected-cpus Determines which CPUs need to have their frequency\n" +" coordinated by software *\n" +msgstr "" +" -a, --affected-cpus Zjistí, které CPU musí měnit frekvenci zároveň *\n" + +#: utils/cpufreq-info.c:486 +#, c-format +msgid " -s, --stats Shows cpufreq statistics if available\n" +msgstr " -s, --stats Zobrazí statistiku cpufreq, je-li dostupná\n" + +#: utils/cpufreq-info.c:487 +#, fuzzy, c-format +msgid "" +" -y, --latency Determines the maximum latency on CPU frequency " +"changes *\n" +msgstr "" +" -l, --hwlimits Zjistí minimální a maximální dostupnou frekvenci CPU " +"*\n" + +#: utils/cpufreq-info.c:488 +#, c-format +msgid " -b, --boost Checks for turbo or boost modes *\n" +msgstr "" + +#: utils/cpufreq-info.c:489 +#, 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/cpufreq-info.c:491 +#, fuzzy, c-format +msgid "" +" -m, --human human-readable output for the -f, -w, -s and -y " +"parameters\n" +msgstr "" +" -m, --human Výstup parametrů -f, -w a -s v „lidmi čitelném“ " +"formátu\n" + +#: utils/cpufreq-info.c:492 utils/cpuidle-info.c:152 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Vypíše tuto nápovědu\n" + +#: utils/cpufreq-info.c:495 +#, 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/cpufreq-info.c:497 +#, 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/cpufreq-info.c:580 +#, 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/cpufreq-info.c:596 +#, 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/cpufreq-info.c:600 utils/cpufreq-set.c:82 utils/cpupower-set.c:42 +#: utils/cpupower-info.c:42 utils/cpuidle-info.c:213 +#, c-format +msgid "invalid or unknown argument\n" +msgstr "neplatný nebo neznámý parametr\n" + +#: utils/cpufreq-info.c:617 +#, 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/cpufreq-info.c:620 utils/cpupower-info.c:142 +#, c-format +msgid "analyzing CPU %d:\n" +msgstr "analyzuji CPU %d:\n" + +#: utils/cpufreq-set.c:25 +#, fuzzy, c-format +msgid "Usage: cpupower frequency-set [options]\n" +msgstr "Užití: cpufreq-set [přepínače]\n" + +#: utils/cpufreq-set.c:27 +#, 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/cpufreq-set.c:28 +#, 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/cpufreq-set.c:29 +#, c-format +msgid " -g GOV, --governor GOV new cpufreq governor\n" +msgstr " -g GOV, --governors GOV Nový regulátor cpufreq\n" + +#: utils/cpufreq-set.c:30 +#, 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/cpufreq-set.c:32 +#, c-format +msgid " -r, --related Switches all hardware-related CPUs\n" +msgstr "" + +#: utils/cpufreq-set.c:33 utils/cpupower-set.c:28 utils/cpupower-info.c:27 +#, fuzzy, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Vypíše tuto nápovědu\n" + +#: utils/cpufreq-set.c:35 +#, fuzzy, c-format +msgid "" +"Notes:\n" +"1. Omitting the -c or --cpu argument is equivalent to setting it to \"all\"\n" +msgstr "" +"Není-li při použití přepínačů označených * zadán parametr -c nebo --cpu,\n" +"předpokládá se jeho hodnota 0.\n" + +#: utils/cpufreq-set.c:37 +#, fuzzy, c-format +msgid "" +"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/cpufreq-set.c:57 +#, 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" + +#: utils/cpufreq-set.c:170 +#, c-format +msgid "wrong, unknown or unhandled CPU?\n" +msgstr "neznámý nebo nepodporovaný CPU?\n" + +#: utils/cpufreq-set.c:302 +#, 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/cpufreq-set.c:308 +#, 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/cpufreq-set.c:347 +#, c-format +msgid "Setting cpu: %d\n" +msgstr "" + +#: utils/cpupower-set.c:22 +#, c-format +msgid "Usage: cpupower set [ -b val ] [ -m val ] [ -s val ]\n" +msgstr "" + +#: utils/cpupower-set.c:24 +#, c-format +msgid "" +" -b, --perf-bias [VAL] Sets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-set.c:26 +#, c-format +msgid "" +" -m, --sched-mc [VAL] Sets the kernel's multi core scheduler policy.\n" +msgstr "" + +#: utils/cpupower-set.c:27 +#, c-format +msgid "" +" -s, --sched-smt [VAL] Sets the kernel's thread sibling scheduler " +"policy.\n" +msgstr "" + +#: utils/cpupower-set.c:80 +#, c-format +msgid "--perf-bias param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:91 +#, c-format +msgid "--sched-mc param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:102 +#, c-format +msgid "--sched-smt param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:121 +#, c-format +msgid "Error setting sched-mc %s\n" +msgstr "" + +#: utils/cpupower-set.c:127 +#, c-format +msgid "Error setting sched-smt %s\n" +msgstr "" + +#: utils/cpupower-set.c:146 +#, c-format +msgid "Error setting perf-bias value on CPU %d\n" +msgstr "" + +#: utils/cpupower-info.c:21 +#, c-format +msgid "Usage: cpupower info [ -b ] [ -m ] [ -s ]\n" +msgstr "" + +#: utils/cpupower-info.c:23 +#, c-format +msgid "" +" -b, --perf-bias Gets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-info.c:25 +#, fuzzy, c-format +msgid " -m, --sched-mc Gets the kernel's multi core scheduler policy.\n" +msgstr " -p, --policy Zjistí aktuální taktiku cpufreq *\n" + +#: utils/cpupower-info.c:26 +#, c-format +msgid "" +" -s, --sched-smt Gets the kernel's thread sibling scheduler policy.\n" +msgstr "" + +#: utils/cpupower-info.c:28 +#, c-format +msgid "" +"\n" +"Passing no option will show all info, by default only on core 0\n" +msgstr "" + +#: utils/cpupower-info.c:102 +#, c-format +msgid "System's multi core scheduler setting: " +msgstr "" + +#. if sysfs file is missing it's: errno == ENOENT +#: utils/cpupower-info.c:105 utils/cpupower-info.c:114 +#, c-format +msgid "not supported\n" +msgstr "" + +#: utils/cpupower-info.c:111 +#, c-format +msgid "System's thread sibling scheduler setting: " +msgstr "" + +#: utils/cpupower-info.c:126 +#, c-format +msgid "Intel's performance bias setting needs root privileges\n" +msgstr "" + +#: utils/cpupower-info.c:128 +#, c-format +msgid "System does not support Intel's performance bias setting\n" +msgstr "" + +#: utils/cpupower-info.c:147 +#, c-format +msgid "Could not read perf-bias value\n" +msgstr "" + +#: utils/cpupower-info.c:150 +#, c-format +msgid "perf-bias: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:28 +#, fuzzy, c-format +msgid "Analyzing CPU %d:\n" +msgstr "analyzuji CPU %d:\n" + +#: utils/cpuidle-info.c:32 +#, c-format +msgid "CPU %u: No idle states\n" +msgstr "" + +#: utils/cpuidle-info.c:36 +#, c-format +msgid "CPU %u: Can't read idle state info\n" +msgstr "" + +#: utils/cpuidle-info.c:41 +#, c-format +msgid "Could not determine max idle state %u\n" +msgstr "" + +#: utils/cpuidle-info.c:46 +#, c-format +msgid "Number of idle states: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:48 +#, fuzzy, c-format +msgid "Available idle states:" +msgstr " dostupné frekvence: " + +#: utils/cpuidle-info.c:71 +#, c-format +msgid "Flags/Description: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:74 +#, c-format +msgid "Latency: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:76 +#, c-format +msgid "Usage: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:78 +#, c-format +msgid "Duration: %llu\n" +msgstr "" + +#: utils/cpuidle-info.c:90 +#, c-format +msgid "Could not determine cpuidle driver\n" +msgstr "" + +#: utils/cpuidle-info.c:94 +#, fuzzy, c-format +msgid "CPUidle driver: %s\n" +msgstr " ovladač: %s\n" + +#: utils/cpuidle-info.c:99 +#, c-format +msgid "Could not determine cpuidle governor\n" +msgstr "" + +#: utils/cpuidle-info.c:103 +#, c-format +msgid "CPUidle governor: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:122 +#, c-format +msgid "CPU %u: Can't read C-state info\n" +msgstr "" + +#. printf("Cstates: %d\n", cstates); +#: utils/cpuidle-info.c:127 +#, c-format +msgid "active state: C0\n" +msgstr "" + +#: utils/cpuidle-info.c:128 +#, c-format +msgid "max_cstate: C%u\n" +msgstr "" + +#: utils/cpuidle-info.c:129 +#, c-format +msgid "maximum allowed latency: %lu usec\n" +msgstr "" + +#: utils/cpuidle-info.c:130 +#, c-format +msgid "states:\t\n" +msgstr "" + +#: utils/cpuidle-info.c:132 +#, c-format +msgid " C%d: type[C%d] " +msgstr "" + +#: utils/cpuidle-info.c:134 +#, c-format +msgid "promotion[--] demotion[--] " +msgstr "" + +#: utils/cpuidle-info.c:135 +#, c-format +msgid "latency[%03lu] " +msgstr "" + +#: utils/cpuidle-info.c:137 +#, c-format +msgid "usage[%08lu] " +msgstr "" + +#: utils/cpuidle-info.c:139 +#, c-format +msgid "duration[%020Lu] \n" +msgstr "" + +#: utils/cpuidle-info.c:147 +#, fuzzy, c-format +msgid "Usage: cpupower idleinfo [options]\n" +msgstr "Užití: cpufreq-info [přepínače]\n" + +#: utils/cpuidle-info.c:149 +#, fuzzy, c-format +msgid " -s, --silent Only show general C-state information\n" +msgstr " -e, --debug Vypíše ladicí informace\n" + +#: utils/cpuidle-info.c:150 +#, fuzzy, c-format +msgid "" +" -o, --proc Prints out information like provided by the /proc/" +"acpi/processor/*/power\n" +" interface in older 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/cpuidle-info.c:209 +#, fuzzy, c-format +msgid "You can't specify 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" + +#~ 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" + +#~ 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" diff --git a/tools/power/cpupower/po/de.po b/tools/power/cpupower/po/de.po new file mode 100644 index 000000000..840c17cc4 --- /dev/null +++ b/tools/power/cpupower/po/de.po @@ -0,0 +1,961 @@ +# 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: 2011-03-08 17:03+0100\n" +"PO-Revision-Date: 2009-08-08 17:18+0100\n" +"Last-Translator: <linux@dominikbrodowski.net>\n" +"Language-Team: NONE\n" +"Language: \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/idle_monitor/nhm_idle.c:36 +msgid "Processor Core C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:43 +msgid "Processor Core C6" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:51 +msgid "Processor Package C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:58 utils/idle_monitor/amd_fam14h_idle.c:70 +msgid "Processor Package C6" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:33 +msgid "Processor Core C7" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:40 +msgid "Processor Package C2" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:47 +msgid "Processor Package C7" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:56 +msgid "Package in sleep state (PC1 or deeper)" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:63 +msgid "Processor Package C1" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:77 +msgid "North Bridge P1 boolean counter (returns 0 or 1)" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:35 +msgid "Processor Core not idle" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:42 +msgid "Processor Core in an idle state" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:50 +msgid "Average Frequency (including boost) in MHz" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:66 +#, c-format +msgid "" +"cpupower monitor: [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:69 +#, c-format +msgid "" +"cpupower monitor: [-v] [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:71 +#, c-format +msgid "\t -v: be more verbose\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:73 +#, c-format +msgid "\t -h: print this help\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:74 +#, c-format +msgid "\t -i: time intervall to measure for in seconds (default 1)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:75 +#, c-format +msgid "\t -t: show CPU topology/hierarchy\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:76 +#, c-format +msgid "\t -l: list available CPU sleep monitors (for use with -m)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:77 +#, c-format +msgid "\t -m: show specific CPU sleep monitors only (in same order)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:79 +#, c-format +msgid "" +"only one of: -t, -l, -m are allowed\n" +"If none of them is passed," +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:80 +#, c-format +msgid " all supported monitors are shown\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:197 +#, c-format +msgid "Monitor %s, Counter %s has no count function. Implementation error\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:207 +#, c-format +msgid " *is offline\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:236 +#, c-format +msgid "%s: max monitor name length (%d) exceeded\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:250 +#, c-format +msgid "No matching monitor found in %s, try -l option\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:266 +#, c-format +msgid "Monitor \"%s\" (%d states) - Might overflow after %u s\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:319 +#, c-format +msgid "%s took %.5f seconds and exited with status %d\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:406 +#, c-format +msgid "Cannot read number of available processors\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:417 +#, c-format +msgid "Available monitor %s needs root access\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:428 +#, c-format +msgid "No HW Cstate monitors found\n" +msgstr "" + +#: utils/cpupower.c:78 +#, c-format +msgid "cpupower [ -c cpulist ] subcommand [ARGS]\n" +msgstr "" + +#: utils/cpupower.c:79 +#, c-format +msgid "cpupower --version\n" +msgstr "" + +#: utils/cpupower.c:80 +#, c-format +msgid "Supported subcommands are:\n" +msgstr "" + +#: utils/cpupower.c:83 +#, c-format +msgid "" +"\n" +"Some subcommands can make use of the -c cpulist option.\n" +msgstr "" + +#: utils/cpupower.c:84 +#, c-format +msgid "Look at the general cpupower manpage how to use it\n" +msgstr "" + +#: utils/cpupower.c:85 +#, c-format +msgid "and read up the subcommand's manpage whether it is supported.\n" +msgstr "" + +#: utils/cpupower.c:86 +#, c-format +msgid "" +"\n" +"Use cpupower help subcommand for getting help for above subcommands.\n" +msgstr "" + +#: utils/cpupower.c:91 +#, c-format +msgid "Report errors and bugs to %s, please.\n" +msgstr "Bitte melden Sie Fehler an %s.\n" + +#: utils/cpupower.c:114 +#, c-format +msgid "Error parsing cpu list\n" +msgstr "" + +#: utils/cpupower.c:172 +#, c-format +msgid "Subcommand %s needs root privileges\n" +msgstr "" + +#: utils/cpufreq-info.c:31 +#, 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/cpufreq-info.c:63 +#, c-format +msgid "" +" minimum CPU frequency - maximum CPU frequency - governor\n" +msgstr "" +" minimale CPU-Taktfreq. - maximale CPU-Taktfreq. - Regler \n" + +#: utils/cpufreq-info.c:151 +#, c-format +msgid "Error while evaluating Boost Capabilities on CPU %d -- are you root?\n" +msgstr "" + +#. P state changes via MSR are identified via cpuid 80000007 +#. on Intel and AMD, but we assume boost capable machines can do that +#. if (cpuid_eax(0x80000000) >= 0x80000007 +#. && (cpuid_edx(0x80000007) & (1 << 7))) +#. +#: utils/cpufreq-info.c:161 +#, c-format +msgid " boost state support: \n" +msgstr "" + +#: utils/cpufreq-info.c:163 +#, c-format +msgid " Supported: %s\n" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "yes" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "no" +msgstr "" + +#: utils/cpufreq-info.c:164 +#, fuzzy, c-format +msgid " Active: %s\n" +msgstr " Treiber: %s\n" + +#: utils/cpufreq-info.c:177 +#, c-format +msgid " Boost States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:178 +#, c-format +msgid " Total States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:181 +#, c-format +msgid " Pstate-Pb%d: %luMHz (boost state)\n" +msgstr "" + +#: utils/cpufreq-info.c:184 +#, c-format +msgid " Pstate-P%d: %luMHz\n" +msgstr "" + +#: utils/cpufreq-info.c:211 +#, c-format +msgid " no or unknown cpufreq driver is active on this CPU\n" +msgstr " kein oder nicht bestimmbarer cpufreq-Treiber aktiv\n" + +#: utils/cpufreq-info.c:213 +#, c-format +msgid " driver: %s\n" +msgstr " Treiber: %s\n" + +#: utils/cpufreq-info.c:219 +#, c-format +msgid " CPUs which run at the same hardware frequency: " +msgstr " Folgende CPUs laufen mit der gleichen Hardware-Taktfrequenz: " + +#: utils/cpufreq-info.c:230 +#, c-format +msgid " CPUs which need to have their frequency coordinated by software: " +msgstr " Die Taktfrequenz folgender CPUs werden per Software koordiniert: " + +#: utils/cpufreq-info.c:241 +#, c-format +msgid " maximum transition latency: " +msgstr " Maximale Dauer eines Taktfrequenzwechsels: " + +#: utils/cpufreq-info.c:247 +#, c-format +msgid " hardware limits: " +msgstr " Hardwarebedingte Grenzen der Taktfrequenz: " + +#: utils/cpufreq-info.c:256 +#, c-format +msgid " available frequency steps: " +msgstr " mögliche Taktfrequenzen: " + +#: utils/cpufreq-info.c:269 +#, c-format +msgid " available cpufreq governors: " +msgstr " mögliche Regler: " + +#: utils/cpufreq-info.c:280 +#, c-format +msgid " current policy: frequency should be within " +msgstr " momentane Taktik: die Frequenz soll innerhalb " + +#: utils/cpufreq-info.c:282 +#, c-format +msgid " and " +msgstr " und " + +#: utils/cpufreq-info.c:286 +#, 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/cpufreq-info.c:293 +#, c-format +msgid " current CPU frequency is " +msgstr " momentane Taktfrequenz ist " + +#: utils/cpufreq-info.c:296 +#, c-format +msgid " (asserted by call to hardware)" +msgstr " (verifiziert durch Nachfrage bei der Hardware)" + +#: utils/cpufreq-info.c:304 +#, c-format +msgid " cpufreq stats: " +msgstr " Statistik:" + +#: utils/cpufreq-info.c:472 +#, fuzzy, c-format +msgid "Usage: cpupower freqinfo [options]\n" +msgstr "Aufruf: cpufreq-info [Optionen]\n" + +#: utils/cpufreq-info.c:473 utils/cpufreq-set.c:26 utils/cpupower-set.c:23 +#: utils/cpupower-info.c:22 utils/cpuidle-info.c:148 +#, c-format +msgid "Options:\n" +msgstr "Optionen:\n" + +#: utils/cpufreq-info.c:474 +#, fuzzy, c-format +msgid " -e, --debug Prints out debug information [default]\n" +msgstr "" +" -e, --debug Erzeugt detaillierte Informationen, hilfreich\n" +" zum Aufspüren von Fehlern\n" + +#: utils/cpufreq-info.c:475 +#, 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/cpufreq-info.c:477 +#, 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/cpufreq-info.c:479 +#, 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/cpufreq-info.c:480 +#, c-format +msgid " -d, --driver Determines the used cpufreq kernel driver *\n" +msgstr " -d, --driver Findet den momentanen Treiber heraus *\n" + +#: utils/cpufreq-info.c:481 +#, c-format +msgid " -p, --policy Gets the currently used cpufreq policy *\n" +msgstr " -p, --policy Findet die momentane Taktik heraus *\n" + +#: utils/cpufreq-info.c:482 +#, c-format +msgid " -g, --governors Determines available cpufreq governors *\n" +msgstr " -g, --governors Erzeugt eine Liste mit verfügbaren Reglern *\n" + +#: utils/cpufreq-info.c:483 +#, 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/cpufreq-info.c:484 +#, 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/cpufreq-info.c:486 +#, c-format +msgid " -s, --stats Shows cpufreq statistics if available\n" +msgstr "" +" -s, --stats Zeigt, sofern möglich, Statistiken über cpufreq an.\n" + +#: utils/cpufreq-info.c:487 +#, 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/cpufreq-info.c:488 +#, c-format +msgid " -b, --boost Checks for turbo or boost modes *\n" +msgstr "" + +#: utils/cpufreq-info.c:489 +#, 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/cpufreq-info.c:491 +#, 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/cpufreq-info.c:492 utils/cpuidle-info.c:152 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Gibt diese Kurzübersicht aus\n" + +#: utils/cpufreq-info.c:495 +#, 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/cpufreq-info.c:497 +#, 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/cpufreq-info.c:580 +#, 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/cpufreq-info.c:596 +#, 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/cpufreq-info.c:600 utils/cpufreq-set.c:82 utils/cpupower-set.c:42 +#: utils/cpupower-info.c:42 utils/cpuidle-info.c:213 +#, c-format +msgid "invalid or unknown argument\n" +msgstr "unbekannter oder falscher Parameter\n" + +#: utils/cpufreq-info.c:617 +#, 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/cpufreq-info.c:620 utils/cpupower-info.c:142 +#, c-format +msgid "analyzing CPU %d:\n" +msgstr "analysiere CPU %d:\n" + +#: utils/cpufreq-set.c:25 +#, fuzzy, c-format +msgid "Usage: cpupower frequency-set [options]\n" +msgstr "Aufruf: cpufreq-set [Optionen]\n" + +#: utils/cpufreq-set.c:27 +#, 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/cpufreq-set.c:28 +#, 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/cpufreq-set.c:29 +#, c-format +msgid " -g GOV, --governor GOV new cpufreq governor\n" +msgstr " -g GOV, --governors GOV wechsle zu Regler GOV\n" + +#: utils/cpufreq-set.c:30 +#, 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/cpufreq-set.c:32 +#, 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/cpufreq-set.c:33 utils/cpupower-set.c:28 utils/cpupower-info.c:27 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Gibt diese Kurzübersicht aus\n" + +#: utils/cpufreq-set.c:35 +#, fuzzy, c-format +msgid "" +"Notes:\n" +"1. Omitting the -c or --cpu argument is equivalent to setting it to \"all\"\n" +msgstr "" +"Bei den mit * markierten Parametern wird '--cpu 0' angenommen, soweit nicht\n" +"mittels -c oder --cpu etwas anderes angegeben wird\n" + +#: utils/cpufreq-set.c:37 +#, fuzzy, c-format +msgid "" +"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/cpufreq-set.c:57 +#, 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/cpufreq-set.c:170 +#, c-format +msgid "wrong, unknown or unhandled CPU?\n" +msgstr "unbekannte oder nicht regelbare CPU\n" + +#: utils/cpufreq-set.c:302 +#, 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/cpufreq-set.c:308 +#, 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" + +#: utils/cpufreq-set.c:347 +#, c-format +msgid "Setting cpu: %d\n" +msgstr "" + +#: utils/cpupower-set.c:22 +#, c-format +msgid "Usage: cpupower set [ -b val ] [ -m val ] [ -s val ]\n" +msgstr "" + +#: utils/cpupower-set.c:24 +#, c-format +msgid "" +" -b, --perf-bias [VAL] Sets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-set.c:26 +#, c-format +msgid "" +" -m, --sched-mc [VAL] Sets the kernel's multi core scheduler policy.\n" +msgstr "" + +#: utils/cpupower-set.c:27 +#, c-format +msgid "" +" -s, --sched-smt [VAL] Sets the kernel's thread sibling scheduler " +"policy.\n" +msgstr "" + +#: utils/cpupower-set.c:80 +#, c-format +msgid "--perf-bias param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:91 +#, c-format +msgid "--sched-mc param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:102 +#, c-format +msgid "--sched-smt param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:121 +#, c-format +msgid "Error setting sched-mc %s\n" +msgstr "" + +#: utils/cpupower-set.c:127 +#, c-format +msgid "Error setting sched-smt %s\n" +msgstr "" + +#: utils/cpupower-set.c:146 +#, c-format +msgid "Error setting perf-bias value on CPU %d\n" +msgstr "" + +#: utils/cpupower-info.c:21 +#, c-format +msgid "Usage: cpupower info [ -b ] [ -m ] [ -s ]\n" +msgstr "" + +#: utils/cpupower-info.c:23 +#, c-format +msgid "" +" -b, --perf-bias Gets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-info.c:25 +#, fuzzy, c-format +msgid " -m, --sched-mc Gets the kernel's multi core scheduler policy.\n" +msgstr " -p, --policy Findet die momentane Taktik heraus *\n" + +#: utils/cpupower-info.c:26 +#, c-format +msgid "" +" -s, --sched-smt Gets the kernel's thread sibling scheduler policy.\n" +msgstr "" + +#: utils/cpupower-info.c:28 +#, c-format +msgid "" +"\n" +"Passing no option will show all info, by default only on core 0\n" +msgstr "" + +#: utils/cpupower-info.c:102 +#, c-format +msgid "System's multi core scheduler setting: " +msgstr "" + +#. if sysfs file is missing it's: errno == ENOENT +#: utils/cpupower-info.c:105 utils/cpupower-info.c:114 +#, c-format +msgid "not supported\n" +msgstr "" + +#: utils/cpupower-info.c:111 +#, c-format +msgid "System's thread sibling scheduler setting: " +msgstr "" + +#: utils/cpupower-info.c:126 +#, c-format +msgid "Intel's performance bias setting needs root privileges\n" +msgstr "" + +#: utils/cpupower-info.c:128 +#, c-format +msgid "System does not support Intel's performance bias setting\n" +msgstr "" + +#: utils/cpupower-info.c:147 +#, c-format +msgid "Could not read perf-bias value\n" +msgstr "" + +#: utils/cpupower-info.c:150 +#, c-format +msgid "perf-bias: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:28 +#, fuzzy, c-format +msgid "Analyzing CPU %d:\n" +msgstr "analysiere CPU %d:\n" + +#: utils/cpuidle-info.c:32 +#, c-format +msgid "CPU %u: No idle states\n" +msgstr "" + +#: utils/cpuidle-info.c:36 +#, c-format +msgid "CPU %u: Can't read idle state info\n" +msgstr "" + +#: utils/cpuidle-info.c:41 +#, c-format +msgid "Could not determine max idle state %u\n" +msgstr "" + +#: utils/cpuidle-info.c:46 +#, c-format +msgid "Number of idle states: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:48 +#, fuzzy, c-format +msgid "Available idle states:" +msgstr " mögliche Taktfrequenzen: " + +#: utils/cpuidle-info.c:71 +#, c-format +msgid "Flags/Description: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:74 +#, c-format +msgid "Latency: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:76 +#, c-format +msgid "Usage: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:78 +#, c-format +msgid "Duration: %llu\n" +msgstr "" + +#: utils/cpuidle-info.c:90 +#, c-format +msgid "Could not determine cpuidle driver\n" +msgstr "" + +#: utils/cpuidle-info.c:94 +#, fuzzy, c-format +msgid "CPUidle driver: %s\n" +msgstr " Treiber: %s\n" + +#: utils/cpuidle-info.c:99 +#, c-format +msgid "Could not determine cpuidle governor\n" +msgstr "" + +#: utils/cpuidle-info.c:103 +#, c-format +msgid "CPUidle governor: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:122 +#, c-format +msgid "CPU %u: Can't read C-state info\n" +msgstr "" + +#. printf("Cstates: %d\n", cstates); +#: utils/cpuidle-info.c:127 +#, c-format +msgid "active state: C0\n" +msgstr "" + +#: utils/cpuidle-info.c:128 +#, c-format +msgid "max_cstate: C%u\n" +msgstr "" + +#: utils/cpuidle-info.c:129 +#, fuzzy, c-format +msgid "maximum allowed latency: %lu usec\n" +msgstr " Maximale Dauer eines Taktfrequenzwechsels: " + +#: utils/cpuidle-info.c:130 +#, c-format +msgid "states:\t\n" +msgstr "" + +#: utils/cpuidle-info.c:132 +#, c-format +msgid " C%d: type[C%d] " +msgstr "" + +#: utils/cpuidle-info.c:134 +#, c-format +msgid "promotion[--] demotion[--] " +msgstr "" + +#: utils/cpuidle-info.c:135 +#, c-format +msgid "latency[%03lu] " +msgstr "" + +#: utils/cpuidle-info.c:137 +#, c-format +msgid "usage[%08lu] " +msgstr "" + +#: utils/cpuidle-info.c:139 +#, c-format +msgid "duration[%020Lu] \n" +msgstr "" + +#: utils/cpuidle-info.c:147 +#, fuzzy, c-format +msgid "Usage: cpupower idleinfo [options]\n" +msgstr "Aufruf: cpufreq-info [Optionen]\n" + +#: utils/cpuidle-info.c:149 +#, fuzzy, c-format +msgid " -s, --silent Only show general C-state information\n" +msgstr "" +" -e, --debug Erzeugt detaillierte Informationen, hilfreich\n" +" zum Aufspüren von Fehlern\n" + +#: utils/cpuidle-info.c:150 +#, fuzzy, c-format +msgid "" +" -o, --proc Prints out information like provided by the /proc/" +"acpi/processor/*/power\n" +" interface in older 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/cpuidle-info.c:209 +#, fuzzy, c-format +msgid "You can't specify 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" + +#~ 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" + +#~ 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" diff --git a/tools/power/cpupower/po/fr.po b/tools/power/cpupower/po/fr.po new file mode 100644 index 000000000..b46ca2548 --- /dev/null +++ b/tools/power/cpupower/po/fr.po @@ -0,0 +1,947 @@ +# 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: 2011-03-08 17:03+0100\n" +"PO-Revision-Date: 2004-11-17 15:53+1000\n" +"Last-Translator: Bruno Ducrot <ducrot@poupinou.org>\n" +"Language-Team: NONE\n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=ISO-8859-1\n" +"Content-Transfer-Encoding: 8bit\n" + +#: utils/idle_monitor/nhm_idle.c:36 +msgid "Processor Core C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:43 +msgid "Processor Core C6" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:51 +msgid "Processor Package C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:58 utils/idle_monitor/amd_fam14h_idle.c:70 +msgid "Processor Package C6" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:33 +msgid "Processor Core C7" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:40 +msgid "Processor Package C2" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:47 +msgid "Processor Package C7" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:56 +msgid "Package in sleep state (PC1 or deeper)" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:63 +msgid "Processor Package C1" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:77 +msgid "North Bridge P1 boolean counter (returns 0 or 1)" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:35 +msgid "Processor Core not idle" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:42 +msgid "Processor Core in an idle state" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:50 +msgid "Average Frequency (including boost) in MHz" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:66 +#, c-format +msgid "" +"cpupower monitor: [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:69 +#, c-format +msgid "" +"cpupower monitor: [-v] [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:71 +#, c-format +msgid "\t -v: be more verbose\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:73 +#, c-format +msgid "\t -h: print this help\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:74 +#, c-format +msgid "\t -i: time intervall to measure for in seconds (default 1)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:75 +#, c-format +msgid "\t -t: show CPU topology/hierarchy\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:76 +#, c-format +msgid "\t -l: list available CPU sleep monitors (for use with -m)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:77 +#, c-format +msgid "\t -m: show specific CPU sleep monitors only (in same order)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:79 +#, c-format +msgid "" +"only one of: -t, -l, -m are allowed\n" +"If none of them is passed," +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:80 +#, c-format +msgid " all supported monitors are shown\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:197 +#, c-format +msgid "Monitor %s, Counter %s has no count function. Implementation error\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:207 +#, c-format +msgid " *is offline\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:236 +#, c-format +msgid "%s: max monitor name length (%d) exceeded\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:250 +#, c-format +msgid "No matching monitor found in %s, try -l option\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:266 +#, c-format +msgid "Monitor \"%s\" (%d states) - Might overflow after %u s\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:319 +#, c-format +msgid "%s took %.5f seconds and exited with status %d\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:406 +#, c-format +msgid "Cannot read number of available processors\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:417 +#, c-format +msgid "Available monitor %s needs root access\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:428 +#, c-format +msgid "No HW Cstate monitors found\n" +msgstr "" + +#: utils/cpupower.c:78 +#, c-format +msgid "cpupower [ -c cpulist ] subcommand [ARGS]\n" +msgstr "" + +#: utils/cpupower.c:79 +#, c-format +msgid "cpupower --version\n" +msgstr "" + +#: utils/cpupower.c:80 +#, c-format +msgid "Supported subcommands are:\n" +msgstr "" + +#: utils/cpupower.c:83 +#, c-format +msgid "" +"\n" +"Some subcommands can make use of the -c cpulist option.\n" +msgstr "" + +#: utils/cpupower.c:84 +#, c-format +msgid "Look at the general cpupower manpage how to use it\n" +msgstr "" + +#: utils/cpupower.c:85 +#, c-format +msgid "and read up the subcommand's manpage whether it is supported.\n" +msgstr "" + +#: utils/cpupower.c:86 +#, c-format +msgid "" +"\n" +"Use cpupower help subcommand for getting help for above subcommands.\n" +msgstr "" + +#: utils/cpupower.c:91 +#, 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/cpupower.c:114 +#, c-format +msgid "Error parsing cpu list\n" +msgstr "" + +#: utils/cpupower.c:172 +#, c-format +msgid "Subcommand %s needs root privileges\n" +msgstr "" + +#: utils/cpufreq-info.c:31 +#, 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/cpufreq-info.c:63 +#, c-format +msgid "" +" minimum CPU frequency - maximum CPU frequency - governor\n" +msgstr "" +" Fréquence CPU minimale - Fréquence CPU maximale - régulateur\n" + +#: utils/cpufreq-info.c:151 +#, c-format +msgid "Error while evaluating Boost Capabilities on CPU %d -- are you root?\n" +msgstr "" + +#. P state changes via MSR are identified via cpuid 80000007 +#. on Intel and AMD, but we assume boost capable machines can do that +#. if (cpuid_eax(0x80000000) >= 0x80000007 +#. && (cpuid_edx(0x80000007) & (1 << 7))) +#. +#: utils/cpufreq-info.c:161 +#, c-format +msgid " boost state support: \n" +msgstr "" + +#: utils/cpufreq-info.c:163 +#, c-format +msgid " Supported: %s\n" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "yes" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "no" +msgstr "" + +#: utils/cpufreq-info.c:164 +#, fuzzy, c-format +msgid " Active: %s\n" +msgstr " pilote : %s\n" + +#: utils/cpufreq-info.c:177 +#, c-format +msgid " Boost States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:178 +#, c-format +msgid " Total States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:181 +#, c-format +msgid " Pstate-Pb%d: %luMHz (boost state)\n" +msgstr "" + +#: utils/cpufreq-info.c:184 +#, c-format +msgid " Pstate-P%d: %luMHz\n" +msgstr "" + +#: utils/cpufreq-info.c:211 +#, 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/cpufreq-info.c:213 +#, c-format +msgid " driver: %s\n" +msgstr " pilote : %s\n" + +#: utils/cpufreq-info.c:219 +#, fuzzy, c-format +msgid " CPUs which run at the same hardware frequency: " +msgstr " CPUs qui doivent changer de fréquences en même temps : " + +#: utils/cpufreq-info.c:230 +#, fuzzy, c-format +msgid " CPUs which need to have their frequency coordinated by software: " +msgstr " CPUs qui doivent changer de fréquences en même temps : " + +#: utils/cpufreq-info.c:241 +#, c-format +msgid " maximum transition latency: " +msgstr "" + +#: utils/cpufreq-info.c:247 +#, c-format +msgid " hardware limits: " +msgstr " limitation matérielle : " + +#: utils/cpufreq-info.c:256 +#, c-format +msgid " available frequency steps: " +msgstr " plage de fréquence : " + +#: utils/cpufreq-info.c:269 +#, c-format +msgid " available cpufreq governors: " +msgstr " régulateurs disponibles : " + +#: utils/cpufreq-info.c:280 +#, c-format +msgid " current policy: frequency should be within " +msgstr " tactique actuelle : la fréquence doit être comprise entre " + +#: utils/cpufreq-info.c:282 +#, c-format +msgid " and " +msgstr " et " + +#: utils/cpufreq-info.c:286 +#, 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/cpufreq-info.c:293 +#, c-format +msgid " current CPU frequency is " +msgstr " la fréquence actuelle de ce CPU est " + +#: utils/cpufreq-info.c:296 +#, c-format +msgid " (asserted by call to hardware)" +msgstr " (vérifié par un appel direct du matériel)" + +#: utils/cpufreq-info.c:304 +#, c-format +msgid " cpufreq stats: " +msgstr " des statistique concernant cpufreq:" + +#: utils/cpufreq-info.c:472 +#, fuzzy, c-format +msgid "Usage: cpupower freqinfo [options]\n" +msgstr "Usage : cpufreq-info [options]\n" + +#: utils/cpufreq-info.c:473 utils/cpufreq-set.c:26 utils/cpupower-set.c:23 +#: utils/cpupower-info.c:22 utils/cpuidle-info.c:148 +#, c-format +msgid "Options:\n" +msgstr "Options :\n" + +#: utils/cpufreq-info.c:474 +#, fuzzy, c-format +msgid " -e, --debug Prints out debug information [default]\n" +msgstr " -e, --debug Afficher les informations de déboguage\n" + +#: utils/cpufreq-info.c:475 +#, 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/cpufreq-info.c:477 +#, 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/cpufreq-info.c:479 +#, 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/cpufreq-info.c:480 +#, c-format +msgid " -d, --driver Determines the used cpufreq kernel driver *\n" +msgstr " -d, --driver Affiche le pilote cpufreq utilisé *\n" + +#: utils/cpufreq-info.c:481 +#, c-format +msgid " -p, --policy Gets the currently used cpufreq policy *\n" +msgstr " -p, --policy Affiche la tactique actuelle de cpufreq *\n" + +#: utils/cpufreq-info.c:482 +#, c-format +msgid " -g, --governors Determines available cpufreq governors *\n" +msgstr "" +" -g, --governors Affiche les régulateurs disponibles de cpufreq *\n" + +#: utils/cpufreq-info.c:483 +#, fuzzy, c-format +msgid "" +" -r, --related-cpus Determines which CPUs run at the same hardware " +"frequency *\n" +msgstr "" +" -a, --affected-cpus Affiche quels sont les CPUs qui doivent changer de\n" +" fréquences en même temps *\n" + +#: utils/cpufreq-info.c:484 +#, fuzzy, c-format +msgid "" +" -a, --affected-cpus Determines which CPUs need to have their frequency\n" +" coordinated by software *\n" +msgstr "" +" -a, --affected-cpus Affiche quels sont les CPUs qui doivent changer de\n" +" fréquences en même temps *\n" + +#: utils/cpufreq-info.c:486 +#, c-format +msgid " -s, --stats Shows cpufreq statistics if available\n" +msgstr "" +" -s, --stats Indique des statistiques concernant cpufreq, si\n" +" disponibles\n" + +#: utils/cpufreq-info.c:487 +#, fuzzy, c-format +msgid "" +" -y, --latency Determines the maximum latency on CPU frequency " +"changes *\n" +msgstr "" +" -l, --hwlimits Affiche les fréquences minimales et maximales du CPU " +"*\n" + +#: utils/cpufreq-info.c:488 +#, c-format +msgid " -b, --boost Checks for turbo or boost modes *\n" +msgstr "" + +#: utils/cpufreq-info.c:489 +#, 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/cpufreq-info.c:491 +#, fuzzy, c-format +msgid "" +" -m, --human human-readable output for the -f, -w, -s and -y " +"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/cpufreq-info.c:492 utils/cpuidle-info.c:152 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help affiche l'aide-mémoire\n" + +#: utils/cpufreq-info.c:495 +#, 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/cpufreq-info.c:497 +#, 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/cpufreq-info.c:580 +#, 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/cpufreq-info.c:596 +#, 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/cpufreq-info.c:600 utils/cpufreq-set.c:82 utils/cpupower-set.c:42 +#: utils/cpupower-info.c:42 utils/cpuidle-info.c:213 +#, c-format +msgid "invalid or unknown argument\n" +msgstr "option invalide\n" + +#: utils/cpufreq-info.c:617 +#, 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/cpufreq-info.c:620 utils/cpupower-info.c:142 +#, c-format +msgid "analyzing CPU %d:\n" +msgstr "analyse du CPU %d :\n" + +#: utils/cpufreq-set.c:25 +#, fuzzy, c-format +msgid "Usage: cpupower frequency-set [options]\n" +msgstr "Usage : cpufreq-set [options]\n" + +#: utils/cpufreq-set.c:27 +#, 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/cpufreq-set.c:28 +#, 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/cpufreq-set.c:29 +#, c-format +msgid " -g GOV, --governor GOV new cpufreq governor\n" +msgstr " -g GOV, --governor GOV active le régulateur GOV\n" + +#: utils/cpufreq-set.c:30 +#, 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/cpufreq-set.c:32 +#, c-format +msgid " -r, --related Switches all hardware-related CPUs\n" +msgstr "" + +#: utils/cpufreq-set.c:33 utils/cpupower-set.c:28 utils/cpupower-info.c:27 +#, fuzzy, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help affiche l'aide-mémoire\n" + +#: utils/cpufreq-set.c:35 +#, fuzzy, c-format +msgid "" +"Notes:\n" +"1. Omitting the -c or --cpu argument is equivalent to setting it to \"all\"\n" +msgstr "Les arguments avec un * utiliseront le CPU 0 si -c (--cpu) est omis\n" + +#: utils/cpufreq-set.c:37 +#, fuzzy, c-format +msgid "" +"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/cpufreq-set.c:57 +#, 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" + +#: utils/cpufreq-set.c:170 +#, c-format +msgid "wrong, unknown or unhandled CPU?\n" +msgstr "CPU inconnu ou non supporté ?\n" + +#: utils/cpufreq-set.c:302 +#, 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/cpufreq-set.c:308 +#, 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/cpufreq-set.c:347 +#, c-format +msgid "Setting cpu: %d\n" +msgstr "" + +#: utils/cpupower-set.c:22 +#, c-format +msgid "Usage: cpupower set [ -b val ] [ -m val ] [ -s val ]\n" +msgstr "" + +#: utils/cpupower-set.c:24 +#, c-format +msgid "" +" -b, --perf-bias [VAL] Sets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-set.c:26 +#, c-format +msgid "" +" -m, --sched-mc [VAL] Sets the kernel's multi core scheduler policy.\n" +msgstr "" + +#: utils/cpupower-set.c:27 +#, c-format +msgid "" +" -s, --sched-smt [VAL] Sets the kernel's thread sibling scheduler " +"policy.\n" +msgstr "" + +#: utils/cpupower-set.c:80 +#, c-format +msgid "--perf-bias param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:91 +#, c-format +msgid "--sched-mc param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:102 +#, c-format +msgid "--sched-smt param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:121 +#, c-format +msgid "Error setting sched-mc %s\n" +msgstr "" + +#: utils/cpupower-set.c:127 +#, c-format +msgid "Error setting sched-smt %s\n" +msgstr "" + +#: utils/cpupower-set.c:146 +#, c-format +msgid "Error setting perf-bias value on CPU %d\n" +msgstr "" + +#: utils/cpupower-info.c:21 +#, c-format +msgid "Usage: cpupower info [ -b ] [ -m ] [ -s ]\n" +msgstr "" + +#: utils/cpupower-info.c:23 +#, c-format +msgid "" +" -b, --perf-bias Gets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-info.c:25 +#, fuzzy, c-format +msgid " -m, --sched-mc Gets the kernel's multi core scheduler policy.\n" +msgstr " -p, --policy Affiche la tactique actuelle de cpufreq *\n" + +#: utils/cpupower-info.c:26 +#, c-format +msgid "" +" -s, --sched-smt Gets the kernel's thread sibling scheduler policy.\n" +msgstr "" + +#: utils/cpupower-info.c:28 +#, c-format +msgid "" +"\n" +"Passing no option will show all info, by default only on core 0\n" +msgstr "" + +#: utils/cpupower-info.c:102 +#, c-format +msgid "System's multi core scheduler setting: " +msgstr "" + +#. if sysfs file is missing it's: errno == ENOENT +#: utils/cpupower-info.c:105 utils/cpupower-info.c:114 +#, c-format +msgid "not supported\n" +msgstr "" + +#: utils/cpupower-info.c:111 +#, c-format +msgid "System's thread sibling scheduler setting: " +msgstr "" + +#: utils/cpupower-info.c:126 +#, c-format +msgid "Intel's performance bias setting needs root privileges\n" +msgstr "" + +#: utils/cpupower-info.c:128 +#, c-format +msgid "System does not support Intel's performance bias setting\n" +msgstr "" + +#: utils/cpupower-info.c:147 +#, c-format +msgid "Could not read perf-bias value\n" +msgstr "" + +#: utils/cpupower-info.c:150 +#, c-format +msgid "perf-bias: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:28 +#, fuzzy, c-format +msgid "Analyzing CPU %d:\n" +msgstr "analyse du CPU %d :\n" + +#: utils/cpuidle-info.c:32 +#, c-format +msgid "CPU %u: No idle states\n" +msgstr "" + +#: utils/cpuidle-info.c:36 +#, c-format +msgid "CPU %u: Can't read idle state info\n" +msgstr "" + +#: utils/cpuidle-info.c:41 +#, c-format +msgid "Could not determine max idle state %u\n" +msgstr "" + +#: utils/cpuidle-info.c:46 +#, c-format +msgid "Number of idle states: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:48 +#, fuzzy, c-format +msgid "Available idle states:" +msgstr " plage de fréquence : " + +#: utils/cpuidle-info.c:71 +#, c-format +msgid "Flags/Description: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:74 +#, c-format +msgid "Latency: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:76 +#, c-format +msgid "Usage: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:78 +#, c-format +msgid "Duration: %llu\n" +msgstr "" + +#: utils/cpuidle-info.c:90 +#, c-format +msgid "Could not determine cpuidle driver\n" +msgstr "" + +#: utils/cpuidle-info.c:94 +#, fuzzy, c-format +msgid "CPUidle driver: %s\n" +msgstr " pilote : %s\n" + +#: utils/cpuidle-info.c:99 +#, c-format +msgid "Could not determine cpuidle governor\n" +msgstr "" + +#: utils/cpuidle-info.c:103 +#, c-format +msgid "CPUidle governor: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:122 +#, c-format +msgid "CPU %u: Can't read C-state info\n" +msgstr "" + +#. printf("Cstates: %d\n", cstates); +#: utils/cpuidle-info.c:127 +#, c-format +msgid "active state: C0\n" +msgstr "" + +#: utils/cpuidle-info.c:128 +#, c-format +msgid "max_cstate: C%u\n" +msgstr "" + +#: utils/cpuidle-info.c:129 +#, c-format +msgid "maximum allowed latency: %lu usec\n" +msgstr "" + +#: utils/cpuidle-info.c:130 +#, c-format +msgid "states:\t\n" +msgstr "" + +#: utils/cpuidle-info.c:132 +#, c-format +msgid " C%d: type[C%d] " +msgstr "" + +#: utils/cpuidle-info.c:134 +#, c-format +msgid "promotion[--] demotion[--] " +msgstr "" + +#: utils/cpuidle-info.c:135 +#, c-format +msgid "latency[%03lu] " +msgstr "" + +#: utils/cpuidle-info.c:137 +#, c-format +msgid "usage[%08lu] " +msgstr "" + +#: utils/cpuidle-info.c:139 +#, c-format +msgid "duration[%020Lu] \n" +msgstr "" + +#: utils/cpuidle-info.c:147 +#, fuzzy, c-format +msgid "Usage: cpupower idleinfo [options]\n" +msgstr "Usage : cpufreq-info [options]\n" + +#: utils/cpuidle-info.c:149 +#, fuzzy, c-format +msgid " -s, --silent Only show general C-state information\n" +msgstr " -e, --debug Afficher les informations de déboguage\n" + +#: utils/cpuidle-info.c:150 +#, fuzzy, c-format +msgid "" +" -o, --proc Prints out information like provided by the /proc/" +"acpi/processor/*/power\n" +" interface in older 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/cpuidle-info.c:209 +#, fuzzy, c-format +msgid "You can't specify 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" + +#~ 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" + +#~ 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" diff --git a/tools/power/cpupower/po/it.po b/tools/power/cpupower/po/it.po new file mode 100644 index 000000000..f80c4ddb9 --- /dev/null +++ b/tools/power/cpupower/po/it.po @@ -0,0 +1,961 @@ +# 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: 2011-03-08 17:03+0100\n" +"PO-Revision-Date: 2009-08-15 12:00+0900\n" +"Last-Translator: Mattia Dongili <malattia@gmail.com>\n" +"Language-Team: NONE\n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#: utils/idle_monitor/nhm_idle.c:36 +msgid "Processor Core C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:43 +msgid "Processor Core C6" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:51 +msgid "Processor Package C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:58 utils/idle_monitor/amd_fam14h_idle.c:70 +msgid "Processor Package C6" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:33 +msgid "Processor Core C7" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:40 +msgid "Processor Package C2" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:47 +msgid "Processor Package C7" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:56 +msgid "Package in sleep state (PC1 or deeper)" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:63 +msgid "Processor Package C1" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:77 +msgid "North Bridge P1 boolean counter (returns 0 or 1)" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:35 +msgid "Processor Core not idle" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:42 +msgid "Processor Core in an idle state" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:50 +msgid "Average Frequency (including boost) in MHz" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:66 +#, c-format +msgid "" +"cpupower monitor: [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:69 +#, c-format +msgid "" +"cpupower monitor: [-v] [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:71 +#, c-format +msgid "\t -v: be more verbose\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:73 +#, c-format +msgid "\t -h: print this help\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:74 +#, c-format +msgid "\t -i: time intervall to measure for in seconds (default 1)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:75 +#, c-format +msgid "\t -t: show CPU topology/hierarchy\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:76 +#, c-format +msgid "\t -l: list available CPU sleep monitors (for use with -m)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:77 +#, c-format +msgid "\t -m: show specific CPU sleep monitors only (in same order)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:79 +#, c-format +msgid "" +"only one of: -t, -l, -m are allowed\n" +"If none of them is passed," +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:80 +#, c-format +msgid " all supported monitors are shown\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:197 +#, c-format +msgid "Monitor %s, Counter %s has no count function. Implementation error\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:207 +#, c-format +msgid " *is offline\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:236 +#, c-format +msgid "%s: max monitor name length (%d) exceeded\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:250 +#, c-format +msgid "No matching monitor found in %s, try -l option\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:266 +#, c-format +msgid "Monitor \"%s\" (%d states) - Might overflow after %u s\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:319 +#, c-format +msgid "%s took %.5f seconds and exited with status %d\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:406 +#, c-format +msgid "Cannot read number of available processors\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:417 +#, c-format +msgid "Available monitor %s needs root access\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:428 +#, c-format +msgid "No HW Cstate monitors found\n" +msgstr "" + +#: utils/cpupower.c:78 +#, c-format +msgid "cpupower [ -c cpulist ] subcommand [ARGS]\n" +msgstr "" + +#: utils/cpupower.c:79 +#, c-format +msgid "cpupower --version\n" +msgstr "" + +#: utils/cpupower.c:80 +#, c-format +msgid "Supported subcommands are:\n" +msgstr "" + +#: utils/cpupower.c:83 +#, c-format +msgid "" +"\n" +"Some subcommands can make use of the -c cpulist option.\n" +msgstr "" + +#: utils/cpupower.c:84 +#, c-format +msgid "Look at the general cpupower manpage how to use it\n" +msgstr "" + +#: utils/cpupower.c:85 +#, c-format +msgid "and read up the subcommand's manpage whether it is supported.\n" +msgstr "" + +#: utils/cpupower.c:86 +#, c-format +msgid "" +"\n" +"Use cpupower help subcommand for getting help for above subcommands.\n" +msgstr "" + +#: utils/cpupower.c:91 +#, c-format +msgid "Report errors and bugs to %s, please.\n" +msgstr "Per favore, comunicare errori e malfunzionamenti a %s.\n" + +#: utils/cpupower.c:114 +#, c-format +msgid "Error parsing cpu list\n" +msgstr "" + +#: utils/cpupower.c:172 +#, c-format +msgid "Subcommand %s needs root privileges\n" +msgstr "" + +#: utils/cpufreq-info.c:31 +#, 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/cpufreq-info.c:63 +#, c-format +msgid "" +" minimum CPU frequency - maximum CPU frequency - governor\n" +msgstr "" +" frequenza minima CPU - frequenza massima CPU - gestore\n" + +#: utils/cpufreq-info.c:151 +#, c-format +msgid "Error while evaluating Boost Capabilities on CPU %d -- are you root?\n" +msgstr "" + +#. P state changes via MSR are identified via cpuid 80000007 +#. on Intel and AMD, but we assume boost capable machines can do that +#. if (cpuid_eax(0x80000000) >= 0x80000007 +#. && (cpuid_edx(0x80000007) & (1 << 7))) +#. +#: utils/cpufreq-info.c:161 +#, c-format +msgid " boost state support: \n" +msgstr "" + +#: utils/cpufreq-info.c:163 +#, c-format +msgid " Supported: %s\n" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "yes" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "no" +msgstr "" + +#: utils/cpufreq-info.c:164 +#, fuzzy, c-format +msgid " Active: %s\n" +msgstr " modulo %s\n" + +#: utils/cpufreq-info.c:177 +#, c-format +msgid " Boost States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:178 +#, c-format +msgid " Total States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:181 +#, c-format +msgid " Pstate-Pb%d: %luMHz (boost state)\n" +msgstr "" + +#: utils/cpufreq-info.c:184 +#, c-format +msgid " Pstate-P%d: %luMHz\n" +msgstr "" + +#: utils/cpufreq-info.c:211 +#, 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/cpufreq-info.c:213 +#, c-format +msgid " driver: %s\n" +msgstr " modulo %s\n" + +#: utils/cpufreq-info.c:219 +#, c-format +msgid " CPUs which run at the same hardware frequency: " +msgstr " CPU che operano alla stessa frequenza hardware: " + +#: utils/cpufreq-info.c:230 +#, c-format +msgid " CPUs which need to have their frequency coordinated by software: " +msgstr " CPU che è necessario siano coordinate dal software: " + +#: utils/cpufreq-info.c:241 +#, c-format +msgid " maximum transition latency: " +msgstr " latenza massima durante la transizione: " + +#: utils/cpufreq-info.c:247 +#, c-format +msgid " hardware limits: " +msgstr " limiti hardware: " + +#: utils/cpufreq-info.c:256 +#, c-format +msgid " available frequency steps: " +msgstr " frequenze disponibili: " + +#: utils/cpufreq-info.c:269 +#, c-format +msgid " available cpufreq governors: " +msgstr " gestori disponibili: " + +#: utils/cpufreq-info.c:280 +#, c-format +msgid " current policy: frequency should be within " +msgstr " gestore attuale: la frequenza deve mantenersi tra " + +#: utils/cpufreq-info.c:282 +#, c-format +msgid " and " +msgstr " e " + +#: utils/cpufreq-info.c:286 +#, 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/cpufreq-info.c:293 +#, c-format +msgid " current CPU frequency is " +msgstr " la frequenza attuale della CPU è " + +#: utils/cpufreq-info.c:296 +#, c-format +msgid " (asserted by call to hardware)" +msgstr " (ottenuta da una chiamata diretta all'hardware)" + +#: utils/cpufreq-info.c:304 +#, c-format +msgid " cpufreq stats: " +msgstr " statistiche cpufreq:" + +#: utils/cpufreq-info.c:472 +#, fuzzy, c-format +msgid "Usage: cpupower freqinfo [options]\n" +msgstr "Uso: cpufreq-info [opzioni]\n" + +#: utils/cpufreq-info.c:473 utils/cpufreq-set.c:26 utils/cpupower-set.c:23 +#: utils/cpupower-info.c:22 utils/cpuidle-info.c:148 +#, c-format +msgid "Options:\n" +msgstr "Opzioni:\n" + +#: utils/cpufreq-info.c:474 +#, fuzzy, c-format +msgid " -e, --debug Prints out debug information [default]\n" +msgstr " -e, --debug Mostra informazioni di debug\n" + +#: utils/cpufreq-info.c:475 +#, 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/cpufreq-info.c:477 +#, 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/cpufreq-info.c:479 +#, 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/cpufreq-info.c:480 +#, 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/cpufreq-info.c:481 +#, c-format +msgid " -p, --policy Gets the currently used cpufreq policy *\n" +msgstr "" +" -p, --policy Mostra il gestore cpufreq attualmente in uso *\n" + +#: utils/cpufreq-info.c:482 +#, c-format +msgid " -g, --governors Determines available cpufreq governors *\n" +msgstr " -g, --governors Determina i gestori cpufreq disponibili *\n" + +#: utils/cpufreq-info.c:483 +#, 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/cpufreq-info.c:484 +#, 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/cpufreq-info.c:486 +#, c-format +msgid " -s, --stats Shows cpufreq statistics if available\n" +msgstr " -s, --stats Mostra le statistiche se disponibili\n" + +#: utils/cpufreq-info.c:487 +#, 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/cpufreq-info.c:488 +#, c-format +msgid " -b, --boost Checks for turbo or boost modes *\n" +msgstr "" + +#: utils/cpufreq-info.c:489 +#, 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/cpufreq-info.c:491 +#, 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/cpufreq-info.c:492 utils/cpuidle-info.c:152 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Stampa questa schermata\n" + +#: utils/cpufreq-info.c:495 +#, 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/cpufreq-info.c:497 +#, 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/cpufreq-info.c:580 +#, 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/cpufreq-info.c:596 +#, 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/cpufreq-info.c:600 utils/cpufreq-set.c:82 utils/cpupower-set.c:42 +#: utils/cpupower-info.c:42 utils/cpuidle-info.c:213 +#, c-format +msgid "invalid or unknown argument\n" +msgstr "opzione sconosciuta o non valida\n" + +#: utils/cpufreq-info.c:617 +#, 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/cpufreq-info.c:620 utils/cpupower-info.c:142 +#, c-format +msgid "analyzing CPU %d:\n" +msgstr "analisi della CPU %d:\n" + +#: utils/cpufreq-set.c:25 +#, fuzzy, c-format +msgid "Usage: cpupower frequency-set [options]\n" +msgstr "Uso: cpufreq-set [opzioni]\n" + +#: utils/cpufreq-set.c:27 +#, 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/cpufreq-set.c:28 +#, 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/cpufreq-set.c:29 +#, c-format +msgid " -g GOV, --governor GOV new cpufreq governor\n" +msgstr " -g GOV, --governor GOV nuovo gestore cpufreq\n" + +#: utils/cpufreq-set.c:30 +#, 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/cpufreq-set.c:32 +#, c-format +msgid " -r, --related Switches all hardware-related CPUs\n" +msgstr "" +" -r, --related Modifica tutte le CPU coordinate dall'hardware\n" + +#: utils/cpufreq-set.c:33 utils/cpupower-set.c:28 utils/cpupower-info.c:27 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Stampa questa schermata\n" + +#: utils/cpufreq-set.c:35 +#, fuzzy, c-format +msgid "" +"Notes:\n" +"1. Omitting the -c or --cpu argument is equivalent to setting it to \"all\"\n" +msgstr "" +"Per le opzioni segnalate con *, omettere l'opzione -c o --cpu è come " +"specificarla\n" +"con il valore 0\n" + +#: utils/cpufreq-set.c:37 +#, fuzzy, c-format +msgid "" +"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/cpufreq-set.c:57 +#, 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/cpufreq-set.c:170 +#, c-format +msgid "wrong, unknown or unhandled CPU?\n" +msgstr "CPU errata, sconosciuta o non gestita?\n" + +#: utils/cpufreq-set.c:302 +#, 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/cpufreq-set.c:308 +#, 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" + +#: utils/cpufreq-set.c:347 +#, c-format +msgid "Setting cpu: %d\n" +msgstr "" + +#: utils/cpupower-set.c:22 +#, c-format +msgid "Usage: cpupower set [ -b val ] [ -m val ] [ -s val ]\n" +msgstr "" + +#: utils/cpupower-set.c:24 +#, c-format +msgid "" +" -b, --perf-bias [VAL] Sets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-set.c:26 +#, c-format +msgid "" +" -m, --sched-mc [VAL] Sets the kernel's multi core scheduler policy.\n" +msgstr "" + +#: utils/cpupower-set.c:27 +#, c-format +msgid "" +" -s, --sched-smt [VAL] Sets the kernel's thread sibling scheduler " +"policy.\n" +msgstr "" + +#: utils/cpupower-set.c:80 +#, c-format +msgid "--perf-bias param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:91 +#, c-format +msgid "--sched-mc param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:102 +#, c-format +msgid "--sched-smt param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:121 +#, c-format +msgid "Error setting sched-mc %s\n" +msgstr "" + +#: utils/cpupower-set.c:127 +#, c-format +msgid "Error setting sched-smt %s\n" +msgstr "" + +#: utils/cpupower-set.c:146 +#, c-format +msgid "Error setting perf-bias value on CPU %d\n" +msgstr "" + +#: utils/cpupower-info.c:21 +#, c-format +msgid "Usage: cpupower info [ -b ] [ -m ] [ -s ]\n" +msgstr "" + +#: utils/cpupower-info.c:23 +#, c-format +msgid "" +" -b, --perf-bias Gets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-info.c:25 +#, fuzzy, c-format +msgid " -m, --sched-mc Gets the kernel's multi core scheduler policy.\n" +msgstr "" +" -p, --policy Mostra il gestore cpufreq attualmente in uso *\n" + +#: utils/cpupower-info.c:26 +#, c-format +msgid "" +" -s, --sched-smt Gets the kernel's thread sibling scheduler policy.\n" +msgstr "" + +#: utils/cpupower-info.c:28 +#, c-format +msgid "" +"\n" +"Passing no option will show all info, by default only on core 0\n" +msgstr "" + +#: utils/cpupower-info.c:102 +#, c-format +msgid "System's multi core scheduler setting: " +msgstr "" + +#. if sysfs file is missing it's: errno == ENOENT +#: utils/cpupower-info.c:105 utils/cpupower-info.c:114 +#, c-format +msgid "not supported\n" +msgstr "" + +#: utils/cpupower-info.c:111 +#, c-format +msgid "System's thread sibling scheduler setting: " +msgstr "" + +#: utils/cpupower-info.c:126 +#, c-format +msgid "Intel's performance bias setting needs root privileges\n" +msgstr "" + +#: utils/cpupower-info.c:128 +#, c-format +msgid "System does not support Intel's performance bias setting\n" +msgstr "" + +#: utils/cpupower-info.c:147 +#, c-format +msgid "Could not read perf-bias value\n" +msgstr "" + +#: utils/cpupower-info.c:150 +#, c-format +msgid "perf-bias: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:28 +#, fuzzy, c-format +msgid "Analyzing CPU %d:\n" +msgstr "analisi della CPU %d:\n" + +#: utils/cpuidle-info.c:32 +#, c-format +msgid "CPU %u: No idle states\n" +msgstr "" + +#: utils/cpuidle-info.c:36 +#, c-format +msgid "CPU %u: Can't read idle state info\n" +msgstr "" + +#: utils/cpuidle-info.c:41 +#, c-format +msgid "Could not determine max idle state %u\n" +msgstr "" + +#: utils/cpuidle-info.c:46 +#, c-format +msgid "Number of idle states: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:48 +#, fuzzy, c-format +msgid "Available idle states:" +msgstr " frequenze disponibili: " + +#: utils/cpuidle-info.c:71 +#, c-format +msgid "Flags/Description: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:74 +#, c-format +msgid "Latency: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:76 +#, c-format +msgid "Usage: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:78 +#, c-format +msgid "Duration: %llu\n" +msgstr "" + +#: utils/cpuidle-info.c:90 +#, c-format +msgid "Could not determine cpuidle driver\n" +msgstr "" + +#: utils/cpuidle-info.c:94 +#, fuzzy, c-format +msgid "CPUidle driver: %s\n" +msgstr " modulo %s\n" + +#: utils/cpuidle-info.c:99 +#, c-format +msgid "Could not determine cpuidle governor\n" +msgstr "" + +#: utils/cpuidle-info.c:103 +#, c-format +msgid "CPUidle governor: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:122 +#, c-format +msgid "CPU %u: Can't read C-state info\n" +msgstr "" + +#. printf("Cstates: %d\n", cstates); +#: utils/cpuidle-info.c:127 +#, c-format +msgid "active state: C0\n" +msgstr "" + +#: utils/cpuidle-info.c:128 +#, c-format +msgid "max_cstate: C%u\n" +msgstr "" + +#: utils/cpuidle-info.c:129 +#, fuzzy, c-format +msgid "maximum allowed latency: %lu usec\n" +msgstr " latenza massima durante la transizione: " + +#: utils/cpuidle-info.c:130 +#, c-format +msgid "states:\t\n" +msgstr "" + +#: utils/cpuidle-info.c:132 +#, c-format +msgid " C%d: type[C%d] " +msgstr "" + +#: utils/cpuidle-info.c:134 +#, c-format +msgid "promotion[--] demotion[--] " +msgstr "" + +#: utils/cpuidle-info.c:135 +#, c-format +msgid "latency[%03lu] " +msgstr "" + +#: utils/cpuidle-info.c:137 +#, c-format +msgid "usage[%08lu] " +msgstr "" + +#: utils/cpuidle-info.c:139 +#, c-format +msgid "duration[%020Lu] \n" +msgstr "" + +#: utils/cpuidle-info.c:147 +#, fuzzy, c-format +msgid "Usage: cpupower idleinfo [options]\n" +msgstr "Uso: cpufreq-info [opzioni]\n" + +#: utils/cpuidle-info.c:149 +#, fuzzy, c-format +msgid " -s, --silent Only show general C-state information\n" +msgstr " -e, --debug Mostra informazioni di debug\n" + +#: utils/cpuidle-info.c:150 +#, fuzzy, c-format +msgid "" +" -o, --proc Prints out information like provided by the /proc/" +"acpi/processor/*/power\n" +" interface in older 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/cpuidle-info.c:209 +#, fuzzy, c-format +msgid "You can't specify 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" + +#~ 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" + +#~ 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" + +#, fuzzy +#~ msgid " CPUs which coordinate software frequency requirements: " +#~ msgstr "" +#~ " CPU per le quali e` necessario cambiare la frequenza " +#~ "contemporaneamente: " diff --git a/tools/power/cpupower/po/pt.po b/tools/power/cpupower/po/pt.po new file mode 100644 index 000000000..990f5267f --- /dev/null +++ b/tools/power/cpupower/po/pt.po @@ -0,0 +1,957 @@ +# 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: 2011-03-08 17:03+0100\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/idle_monitor/nhm_idle.c:36 +msgid "Processor Core C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:43 +msgid "Processor Core C6" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:51 +msgid "Processor Package C3" +msgstr "" + +#: utils/idle_monitor/nhm_idle.c:58 utils/idle_monitor/amd_fam14h_idle.c:70 +msgid "Processor Package C6" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:33 +msgid "Processor Core C7" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:40 +msgid "Processor Package C2" +msgstr "" + +#: utils/idle_monitor/snb_idle.c:47 +msgid "Processor Package C7" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:56 +msgid "Package in sleep state (PC1 or deeper)" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:63 +msgid "Processor Package C1" +msgstr "" + +#: utils/idle_monitor/amd_fam14h_idle.c:77 +msgid "North Bridge P1 boolean counter (returns 0 or 1)" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:35 +msgid "Processor Core not idle" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:42 +msgid "Processor Core in an idle state" +msgstr "" + +#: utils/idle_monitor/mperf_monitor.c:50 +msgid "Average Frequency (including boost) in MHz" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:66 +#, c-format +msgid "" +"cpupower monitor: [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:69 +#, c-format +msgid "" +"cpupower monitor: [-v] [-h] [ [-t] | [-l] | [-m <mon1>,[<mon2>] ] ] [-i " +"interval_sec | -c command ...]\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:71 +#, c-format +msgid "\t -v: be more verbose\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:73 +#, c-format +msgid "\t -h: print this help\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:74 +#, c-format +msgid "\t -i: time intervall to measure for in seconds (default 1)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:75 +#, c-format +msgid "\t -t: show CPU topology/hierarchy\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:76 +#, c-format +msgid "\t -l: list available CPU sleep monitors (for use with -m)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:77 +#, c-format +msgid "\t -m: show specific CPU sleep monitors only (in same order)\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:79 +#, c-format +msgid "" +"only one of: -t, -l, -m are allowed\n" +"If none of them is passed," +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:80 +#, c-format +msgid " all supported monitors are shown\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:197 +#, c-format +msgid "Monitor %s, Counter %s has no count function. Implementation error\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:207 +#, c-format +msgid " *is offline\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:236 +#, c-format +msgid "%s: max monitor name length (%d) exceeded\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:250 +#, c-format +msgid "No matching monitor found in %s, try -l option\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:266 +#, c-format +msgid "Monitor \"%s\" (%d states) - Might overflow after %u s\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:319 +#, c-format +msgid "%s took %.5f seconds and exited with status %d\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:406 +#, c-format +msgid "Cannot read number of available processors\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:417 +#, c-format +msgid "Available monitor %s needs root access\n" +msgstr "" + +#: utils/idle_monitor/cpupower-monitor.c:428 +#, c-format +msgid "No HW Cstate monitors found\n" +msgstr "" + +#: utils/cpupower.c:78 +#, c-format +msgid "cpupower [ -c cpulist ] subcommand [ARGS]\n" +msgstr "" + +#: utils/cpupower.c:79 +#, c-format +msgid "cpupower --version\n" +msgstr "" + +#: utils/cpupower.c:80 +#, c-format +msgid "Supported subcommands are:\n" +msgstr "" + +#: utils/cpupower.c:83 +#, c-format +msgid "" +"\n" +"Some subcommands can make use of the -c cpulist option.\n" +msgstr "" + +#: utils/cpupower.c:84 +#, c-format +msgid "Look at the general cpupower manpage how to use it\n" +msgstr "" + +#: utils/cpupower.c:85 +#, c-format +msgid "and read up the subcommand's manpage whether it is supported.\n" +msgstr "" + +#: utils/cpupower.c:86 +#, c-format +msgid "" +"\n" +"Use cpupower help subcommand for getting help for above subcommands.\n" +msgstr "" + +#: utils/cpupower.c:91 +#, c-format +msgid "Report errors and bugs to %s, please.\n" +msgstr "Reporte erros e bugs para %s, por favor.\n" + +#: utils/cpupower.c:114 +#, c-format +msgid "Error parsing cpu list\n" +msgstr "" + +#: utils/cpupower.c:172 +#, c-format +msgid "Subcommand %s needs root privileges\n" +msgstr "" + +#: utils/cpufreq-info.c:31 +#, 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/cpufreq-info.c:63 +#, c-format +msgid "" +" minimum CPU frequency - maximum CPU frequency - governor\n" +msgstr "" +" frequência mínina do CPU - frequência máxima do CPU - " +"regulador\n" + +#: utils/cpufreq-info.c:151 +#, c-format +msgid "Error while evaluating Boost Capabilities on CPU %d -- are you root?\n" +msgstr "" + +#. P state changes via MSR are identified via cpuid 80000007 +#. on Intel and AMD, but we assume boost capable machines can do that +#. if (cpuid_eax(0x80000000) >= 0x80000007 +#. && (cpuid_edx(0x80000007) & (1 << 7))) +#. +#: utils/cpufreq-info.c:161 +#, c-format +msgid " boost state support: \n" +msgstr "" + +#: utils/cpufreq-info.c:163 +#, c-format +msgid " Supported: %s\n" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "yes" +msgstr "" + +#: utils/cpufreq-info.c:163 utils/cpufreq-info.c:164 +msgid "no" +msgstr "" + +#: utils/cpufreq-info.c:164 +#, fuzzy, c-format +msgid " Active: %s\n" +msgstr " driver: %s\n" + +#: utils/cpufreq-info.c:177 +#, c-format +msgid " Boost States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:178 +#, c-format +msgid " Total States: %d\n" +msgstr "" + +#: utils/cpufreq-info.c:181 +#, c-format +msgid " Pstate-Pb%d: %luMHz (boost state)\n" +msgstr "" + +#: utils/cpufreq-info.c:184 +#, c-format +msgid " Pstate-P%d: %luMHz\n" +msgstr "" + +#: utils/cpufreq-info.c:211 +#, 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/cpufreq-info.c:213 +#, c-format +msgid " driver: %s\n" +msgstr " driver: %s\n" + +#: utils/cpufreq-info.c:219 +#, c-format +msgid " CPUs which run at the same hardware frequency: " +msgstr " CPUs que rodam na mesma frequência de hardware: " + +#: utils/cpufreq-info.c:230 +#, c-format +msgid " CPUs which need to have their frequency coordinated by software: " +msgstr " CPUs que precisam ter suas frequências coordenadas por software: " + +#: utils/cpufreq-info.c:241 +#, c-format +msgid " maximum transition latency: " +msgstr " maior latência de transição: " + +#: utils/cpufreq-info.c:247 +#, c-format +msgid " hardware limits: " +msgstr " limites do hardware: " + +#: utils/cpufreq-info.c:256 +#, c-format +msgid " available frequency steps: " +msgstr " níveis de frequência disponíveis: " + +#: utils/cpufreq-info.c:269 +#, c-format +msgid " available cpufreq governors: " +msgstr " reguladores do cpufreq disponíveis: " + +#: utils/cpufreq-info.c:280 +#, c-format +msgid " current policy: frequency should be within " +msgstr " política de frequência atual deve estar entre " + +#: utils/cpufreq-info.c:282 +#, c-format +msgid " and " +msgstr " e " + +#: utils/cpufreq-info.c:286 +#, 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/cpufreq-info.c:293 +#, c-format +msgid " current CPU frequency is " +msgstr " frequência atual do CPU é " + +#: utils/cpufreq-info.c:296 +#, c-format +msgid " (asserted by call to hardware)" +msgstr " (declarado por chamada ao hardware)" + +#: utils/cpufreq-info.c:304 +#, c-format +msgid " cpufreq stats: " +msgstr " status do cpufreq: " + +#: utils/cpufreq-info.c:472 +#, fuzzy, c-format +msgid "Usage: cpupower freqinfo [options]\n" +msgstr "Uso: cpufreq-info [opções]\n" + +#: utils/cpufreq-info.c:473 utils/cpufreq-set.c:26 utils/cpupower-set.c:23 +#: utils/cpupower-info.c:22 utils/cpuidle-info.c:148 +#, c-format +msgid "Options:\n" +msgstr "Opções:\n" + +#: utils/cpufreq-info.c:474 +#, fuzzy, c-format +msgid " -e, --debug Prints out debug information [default]\n" +msgstr " -e, --debug Mostra informação de debug\n" + +#: utils/cpufreq-info.c:475 +#, 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/cpufreq-info.c:477 +#, 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/cpufreq-info.c:479 +#, 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/cpufreq-info.c:480 +#, 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/cpufreq-info.c:481 +#, 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/cpufreq-info.c:482 +#, c-format +msgid " -g, --governors Determines available cpufreq governors *\n" +msgstr "" +" -g, --governors Determina reguladores do cpufreq disponíveis *\n" + +#: utils/cpufreq-info.c:483 +#, 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/cpufreq-info.c:484 +#, 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/cpufreq-info.c:486 +#, c-format +msgid " -s, --stats Shows cpufreq statistics if available\n" +msgstr " -s, --stats Mostra estatísticas do cpufreq se disponíveis\n" + +#: utils/cpufreq-info.c:487 +#, 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/cpufreq-info.c:488 +#, c-format +msgid " -b, --boost Checks for turbo or boost modes *\n" +msgstr "" + +#: utils/cpufreq-info.c:489 +#, 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/cpufreq-info.c:491 +#, 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/cpufreq-info.c:492 utils/cpuidle-info.c:152 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Imprime essa tela\n" + +#: utils/cpufreq-info.c:495 +#, 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/cpufreq-info.c:497 +#, 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/cpufreq-info.c:580 +#, 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/cpufreq-info.c:596 +#, 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/cpufreq-info.c:600 utils/cpufreq-set.c:82 utils/cpupower-set.c:42 +#: utils/cpupower-info.c:42 utils/cpuidle-info.c:213 +#, c-format +msgid "invalid or unknown argument\n" +msgstr "argumento inválido ou desconhecido\n" + +#: utils/cpufreq-info.c:617 +#, 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/cpufreq-info.c:620 utils/cpupower-info.c:142 +#, c-format +msgid "analyzing CPU %d:\n" +msgstr "analisando o CPU %d:\n" + +#: utils/cpufreq-set.c:25 +#, fuzzy, c-format +msgid "Usage: cpupower frequency-set [options]\n" +msgstr "Uso: cpufreq-set [opções]\n" + +#: utils/cpufreq-set.c:27 +#, 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/cpufreq-set.c:28 +#, 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/cpufreq-set.c:29 +#, c-format +msgid " -g GOV, --governor GOV new cpufreq governor\n" +msgstr " -g GOV, --governor GOV novo regulador do cpufreq\n" + +#: utils/cpufreq-set.c:30 +#, 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/cpufreq-set.c:32 +#, c-format +msgid " -r, --related Switches all hardware-related CPUs\n" +msgstr "" +" -r, --related Modifica todos os CPUs relacionados ao hardware\n" + +#: utils/cpufreq-set.c:33 utils/cpupower-set.c:28 utils/cpupower-info.c:27 +#, c-format +msgid " -h, --help Prints out this screen\n" +msgstr " -h, --help Mostra essa tela\n" + +#: utils/cpufreq-set.c:35 +#, fuzzy, c-format +msgid "" +"Notes:\n" +"1. Omitting the -c or --cpu argument is equivalent to setting it to \"all\"\n" +msgstr "" +"Para os argumentos marcados com *, omitir o argumento -c ou --cpu é\n" +"equivalente a setá-lo como zero\n" + +#: utils/cpufreq-set.c:37 +#, fuzzy, c-format +msgid "" +"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/cpufreq-set.c:57 +#, 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/cpufreq-set.c:170 +#, c-format +msgid "wrong, unknown or unhandled CPU?\n" +msgstr "CPU errado, desconhecido ou inesperado?\n" + +#: utils/cpufreq-set.c:302 +#, 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/cpufreq-set.c:308 +#, 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" + +#: utils/cpufreq-set.c:347 +#, c-format +msgid "Setting cpu: %d\n" +msgstr "" + +#: utils/cpupower-set.c:22 +#, c-format +msgid "Usage: cpupower set [ -b val ] [ -m val ] [ -s val ]\n" +msgstr "" + +#: utils/cpupower-set.c:24 +#, c-format +msgid "" +" -b, --perf-bias [VAL] Sets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-set.c:26 +#, c-format +msgid "" +" -m, --sched-mc [VAL] Sets the kernel's multi core scheduler policy.\n" +msgstr "" + +#: utils/cpupower-set.c:27 +#, c-format +msgid "" +" -s, --sched-smt [VAL] Sets the kernel's thread sibling scheduler " +"policy.\n" +msgstr "" + +#: utils/cpupower-set.c:80 +#, c-format +msgid "--perf-bias param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:91 +#, c-format +msgid "--sched-mc param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:102 +#, c-format +msgid "--sched-smt param out of range [0-%d]\n" +msgstr "" + +#: utils/cpupower-set.c:121 +#, c-format +msgid "Error setting sched-mc %s\n" +msgstr "" + +#: utils/cpupower-set.c:127 +#, c-format +msgid "Error setting sched-smt %s\n" +msgstr "" + +#: utils/cpupower-set.c:146 +#, c-format +msgid "Error setting perf-bias value on CPU %d\n" +msgstr "" + +#: utils/cpupower-info.c:21 +#, c-format +msgid "Usage: cpupower info [ -b ] [ -m ] [ -s ]\n" +msgstr "" + +#: utils/cpupower-info.c:23 +#, c-format +msgid "" +" -b, --perf-bias Gets CPU's power vs performance policy on some\n" +" Intel models [0-15], see manpage for details\n" +msgstr "" + +#: utils/cpupower-info.c:25 +#, fuzzy, c-format +msgid " -m, --sched-mc Gets the kernel's multi core scheduler policy.\n" +msgstr "" +"--p, --policy Obtem a política do cpufreq em uso no momento *\n" + +#: utils/cpupower-info.c:26 +#, c-format +msgid "" +" -s, --sched-smt Gets the kernel's thread sibling scheduler policy.\n" +msgstr "" + +#: utils/cpupower-info.c:28 +#, c-format +msgid "" +"\n" +"Passing no option will show all info, by default only on core 0\n" +msgstr "" + +#: utils/cpupower-info.c:102 +#, c-format +msgid "System's multi core scheduler setting: " +msgstr "" + +#. if sysfs file is missing it's: errno == ENOENT +#: utils/cpupower-info.c:105 utils/cpupower-info.c:114 +#, c-format +msgid "not supported\n" +msgstr "" + +#: utils/cpupower-info.c:111 +#, c-format +msgid "System's thread sibling scheduler setting: " +msgstr "" + +#: utils/cpupower-info.c:126 +#, c-format +msgid "Intel's performance bias setting needs root privileges\n" +msgstr "" + +#: utils/cpupower-info.c:128 +#, c-format +msgid "System does not support Intel's performance bias setting\n" +msgstr "" + +#: utils/cpupower-info.c:147 +#, c-format +msgid "Could not read perf-bias value\n" +msgstr "" + +#: utils/cpupower-info.c:150 +#, c-format +msgid "perf-bias: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:28 +#, fuzzy, c-format +msgid "Analyzing CPU %d:\n" +msgstr "analisando o CPU %d:\n" + +#: utils/cpuidle-info.c:32 +#, c-format +msgid "CPU %u: No idle states\n" +msgstr "" + +#: utils/cpuidle-info.c:36 +#, c-format +msgid "CPU %u: Can't read idle state info\n" +msgstr "" + +#: utils/cpuidle-info.c:41 +#, c-format +msgid "Could not determine max idle state %u\n" +msgstr "" + +#: utils/cpuidle-info.c:46 +#, c-format +msgid "Number of idle states: %d\n" +msgstr "" + +#: utils/cpuidle-info.c:48 +#, fuzzy, c-format +msgid "Available idle states:" +msgstr " níveis de frequência disponíveis: " + +#: utils/cpuidle-info.c:71 +#, c-format +msgid "Flags/Description: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:74 +#, c-format +msgid "Latency: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:76 +#, c-format +msgid "Usage: %lu\n" +msgstr "" + +#: utils/cpuidle-info.c:78 +#, c-format +msgid "Duration: %llu\n" +msgstr "" + +#: utils/cpuidle-info.c:90 +#, c-format +msgid "Could not determine cpuidle driver\n" +msgstr "" + +#: utils/cpuidle-info.c:94 +#, fuzzy, c-format +msgid "CPUidle driver: %s\n" +msgstr " driver: %s\n" + +#: utils/cpuidle-info.c:99 +#, c-format +msgid "Could not determine cpuidle governor\n" +msgstr "" + +#: utils/cpuidle-info.c:103 +#, c-format +msgid "CPUidle governor: %s\n" +msgstr "" + +#: utils/cpuidle-info.c:122 +#, c-format +msgid "CPU %u: Can't read C-state info\n" +msgstr "" + +#. printf("Cstates: %d\n", cstates); +#: utils/cpuidle-info.c:127 +#, c-format +msgid "active state: C0\n" +msgstr "" + +#: utils/cpuidle-info.c:128 +#, c-format +msgid "max_cstate: C%u\n" +msgstr "" + +#: utils/cpuidle-info.c:129 +#, fuzzy, c-format +msgid "maximum allowed latency: %lu usec\n" +msgstr " maior latência de transição: " + +#: utils/cpuidle-info.c:130 +#, c-format +msgid "states:\t\n" +msgstr "" + +#: utils/cpuidle-info.c:132 +#, c-format +msgid " C%d: type[C%d] " +msgstr "" + +#: utils/cpuidle-info.c:134 +#, c-format +msgid "promotion[--] demotion[--] " +msgstr "" + +#: utils/cpuidle-info.c:135 +#, c-format +msgid "latency[%03lu] " +msgstr "" + +#: utils/cpuidle-info.c:137 +#, c-format +msgid "usage[%08lu] " +msgstr "" + +#: utils/cpuidle-info.c:139 +#, c-format +msgid "duration[%020Lu] \n" +msgstr "" + +#: utils/cpuidle-info.c:147 +#, fuzzy, c-format +msgid "Usage: cpupower idleinfo [options]\n" +msgstr "Uso: cpufreq-info [opções]\n" + +#: utils/cpuidle-info.c:149 +#, fuzzy, c-format +msgid " -s, --silent Only show general C-state information\n" +msgstr " -e, --debug Mostra informação de debug\n" + +#: utils/cpuidle-info.c:150 +#, fuzzy, c-format +msgid "" +" -o, --proc Prints out information like provided by the /proc/" +"acpi/processor/*/power\n" +" interface in older 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/cpuidle-info.c:209 +#, fuzzy, c-format +msgid "You can't specify 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" + +#~ 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" + +#~ 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" diff --git a/tools/power/cpupower/utils/builtin.h b/tools/power/cpupower/utils/builtin.h new file mode 100644 index 000000000..f7065ae60 --- /dev/null +++ b/tools/power/cpupower/utils/builtin.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef BUILTIN_H +#define BUILTIN_H + +extern int cmd_set(int argc, const char **argv); +extern int cmd_info(int argc, const char **argv); +extern int cmd_freq_set(int argc, const char **argv); +extern int cmd_freq_info(int argc, const char **argv); +extern int cmd_idle_set(int argc, const char **argv); +extern int cmd_idle_info(int argc, const char **argv); +extern int cmd_monitor(int argc, const char **argv); + +#endif diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c new file mode 100644 index 000000000..ccd08dd00 --- /dev/null +++ b/tools/power/cpupower/utils/cpufreq-info.c @@ -0,0 +1,648 @@ +/* + * (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 <limits.h> + +#include <getopt.h> + +#include "cpufreq.h" +#include "helpers/sysfs.h" +#include "helpers/helpers.h" +#include "helpers/bitmask.h" + +#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(_("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(_(" 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 int no_rounding; +static void print_speed(unsigned long speed) +{ + unsigned long tmp; + + if (no_rounding) { + if (speed > 1000000) + printf("%u.%06u GHz", ((unsigned int) speed/1000000), + ((unsigned int) speed%1000000)); + else if (speed > 1000) + printf("%u.%03u MHz", ((unsigned int) speed/1000), + (unsigned int) (speed%1000)); + else + printf("%lu kHz", speed); + } else { + 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)); + } + } + + return; +} + +static void print_duration(unsigned long duration) +{ + unsigned long tmp; + + if (no_rounding) { + if (duration > 1000000) + printf("%u.%06u ms", ((unsigned int) duration/1000000), + ((unsigned int) duration%1000000)); + else if (duration > 100000) + printf("%u us", ((unsigned int) duration/1000)); + else if (duration > 1000) + printf("%u.%03u us", ((unsigned int) duration/1000), + ((unsigned int) duration%1000)); + else + printf("%lu ns", duration); + } else { + 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; +} + +/* --boost / -b */ + +static int get_boost_mode(unsigned int cpu) +{ + int support, active, b_states = 0, ret, pstate_no, i; + /* ToDo: Make this more global */ + unsigned long pstates[MAX_HW_PSTATES] = {0,}; + + if (cpupower_cpu_info.vendor != X86_VENDOR_AMD && + cpupower_cpu_info.vendor != X86_VENDOR_INTEL) + return 0; + + ret = cpufreq_has_boost_support(cpu, &support, &active, &b_states); + if (ret) { + printf(_("Error while evaluating Boost Capabilities" + " on CPU %d -- are you root?\n"), cpu); + return ret; + } + /* P state changes via MSR are identified via cpuid 80000007 + on Intel and AMD, but we assume boost capable machines can do that + if (cpuid_eax(0x80000000) >= 0x80000007 + && (cpuid_edx(0x80000007) & (1 << 7))) + */ + + printf(_(" boost state support:\n")); + + printf(_(" Supported: %s\n"), support ? _("yes") : _("no")); + printf(_(" Active: %s\n"), active ? _("yes") : _("no")); + + if (cpupower_cpu_info.vendor == X86_VENDOR_AMD && + cpupower_cpu_info.family >= 0x10) { + ret = decode_pstates(cpu, cpupower_cpu_info.family, b_states, + pstates, &pstate_no); + if (ret) + return ret; + + printf(_(" Boost States: %d\n"), b_states); + printf(_(" Total States: %d\n"), pstate_no); + for (i = 0; i < pstate_no; i++) { + if (!pstates[i]) + continue; + if (i < b_states) + printf(_(" Pstate-Pb%d: %luMHz (boost state)" + "\n"), i, pstates[i]); + else + printf(_(" Pstate-P%d: %luMHz\n"), + i - b_states, pstates[i]); + } + } else if (cpupower_cpu_info.caps & CPUPOWER_CAP_HAS_TURBO_RATIO) { + double bclk; + unsigned long long intel_turbo_ratio = 0; + unsigned int ratio; + + /* Any way to autodetect this ? */ + if (cpupower_cpu_info.caps & CPUPOWER_CAP_IS_SNB) + bclk = 100.00; + else + bclk = 133.33; + intel_turbo_ratio = msr_intel_get_turbo_ratio(cpu); + dprint (" Ratio: 0x%llx - bclk: %f\n", + intel_turbo_ratio, bclk); + + ratio = (intel_turbo_ratio >> 24) & 0xFF; + if (ratio) + printf(_(" %.0f MHz max turbo 4 active cores\n"), + ratio * bclk); + + ratio = (intel_turbo_ratio >> 16) & 0xFF; + if (ratio) + printf(_(" %.0f MHz max turbo 3 active cores\n"), + ratio * bclk); + + ratio = (intel_turbo_ratio >> 8) & 0xFF; + if (ratio) + printf(_(" %.0f MHz max turbo 2 active cores\n"), + ratio * bclk); + + ratio = (intel_turbo_ratio >> 0) & 0xFF; + if (ratio) + printf(_(" %.0f MHz max turbo 1 active cores\n"), + ratio * bclk); + } + return 0; +} + +/* --freq / -f */ + +static int get_freq_kernel(unsigned int cpu, unsigned int human) +{ + unsigned long freq = cpufreq_get_freq_kernel(cpu); + printf(_(" current CPU frequency: ")); + if (!freq) { + printf(_(" Unable to call to kernel\n")); + return -EINVAL; + } + if (human) { + print_speed(freq); + } else + printf("%lu", freq); + printf(_(" (asserted by call to kernel)\n")); + return 0; +} + + +/* --hwfreq / -w */ + +static int get_freq_hardware(unsigned int cpu, unsigned int human) +{ + unsigned long freq = cpufreq_get_freq_hardware(cpu); + printf(_(" current CPU frequency: ")); + if (!freq) { + printf("Unable to call hardware\n"); + return -EINVAL; + } + if (human) { + print_speed(freq); + } else + printf("%lu", freq); + printf(_(" (asserted by call to hardware)\n")); + return 0; +} + +/* --hwlimits / -l */ + +static int get_hardware_limits(unsigned int cpu, unsigned int human) +{ + unsigned long min, max; + + if (cpufreq_get_hardware_limits(cpu, &min, &max)) { + printf(_("Not Available\n")); + return -EINVAL; + } + + if (human) { + printf(_(" hardware limits: ")); + print_speed(min); + printf(" - "); + print_speed(max); + printf("\n"); + } else { + 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) { + printf(_(" no or unknown cpufreq driver is active on this CPU\n")); + return -EINVAL; + } + printf(" driver: %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) { + printf(_(" Unable to determine current policy\n")); + return -EINVAL; + } + printf(_(" current policy: frequency should be within ")); + print_speed(policy->min); + printf(_(" and ")); + print_speed(policy->max); + + printf(".\n "); + printf(_("The governor \"%s\" may decide which speed to use\n" + " within this range.\n"), + 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); + + printf(_(" available cpufreq governors: ")); + if (!governors) { + printf(_("Not Available\n")); + 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); + + printf(_(" CPUs which need to have their frequency coordinated by software: ")); + if (!cpus) { + printf(_("Not Available\n")); + 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); + + printf(_(" CPUs which run at the same hardware frequency: ")); + if (!cpus) { + printf(_("Not Available\n")); + 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); + + printf(_(" maximum transition latency: ")); + if (!latency || latency == UINT_MAX) { + printf(_(" Cannot determine or is not supported.\n")); + return -EINVAL; + } + + if (human) { + print_duration(latency); + printf("\n"); + } else + printf("%lu\n", latency); + return 0; +} + +static void debug_output_one(unsigned int cpu) +{ + struct cpufreq_available_frequencies *freqs; + + get_driver(cpu); + get_related_cpus(cpu); + get_affected_cpus(cpu); + get_latency(cpu, 1); + get_hardware_limits(cpu, 1); + + freqs = cpufreq_get_available_frequencies(cpu); + if (freqs) { + printf(_(" 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); + } + + get_available_governors(cpu); + get_policy(cpu); + if (get_freq_hardware(cpu, 1) < 0) + get_freq_kernel(cpu, 1); + get_boost_mode(cpu); +} + +static struct option info_opts[] = { + {"debug", no_argument, NULL, 'e'}, + {"boost", no_argument, NULL, 'b'}, + {"freq", no_argument, NULL, 'f'}, + {"hwfreq", no_argument, NULL, 'w'}, + {"hwlimits", no_argument, NULL, 'l'}, + {"driver", no_argument, NULL, 'd'}, + {"policy", no_argument, NULL, 'p'}, + {"governors", no_argument, NULL, 'g'}, + {"related-cpus", no_argument, NULL, 'r'}, + {"affected-cpus", no_argument, NULL, 'a'}, + {"stats", no_argument, NULL, 's'}, + {"latency", no_argument, NULL, 'y'}, + {"proc", no_argument, NULL, 'o'}, + {"human", no_argument, NULL, 'm'}, + {"no-rounding", no_argument, NULL, 'n'}, + { }, +}; + +int cmd_freq_info(int argc, char **argv) +{ + extern char *optarg; + extern int optind, opterr, optopt; + int ret = 0, cont = 1; + unsigned int cpu = 0; + unsigned int human = 0; + int output_param = 0; + + do { + ret = getopt_long(argc, argv, "oefwldpgrasmybn", info_opts, + NULL); + switch (ret) { + case '?': + output_param = '?'; + cont = 0; + break; + case -1: + cont = 0; + break; + case 'b': + 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 'm': + if (human) { + output_param = -1; + cont = 0; + break; + } + human = 1; + break; + case 'n': + no_rounding = 1; + break; + default: + fprintf(stderr, "invalid or unknown argument\n"); + return EXIT_FAILURE; + } + } while (cont); + + switch (output_param) { + case 'o': + if (!bitmask_isallclear(cpus_chosen)) { + printf(_("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; + + /* Default is: show output of CPU 0 only */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setbit(cpus_chosen, 0); + + switch (output_param) { + case -1: + printf(_("You can't specify more than one --cpu parameter and/or\n" + "more than one output-specific argument\n")); + return -EINVAL; + case '?': + printf(_("invalid or unknown argument\n")); + return -EINVAL; + case 'o': + proc_cpufreq_output(); + return EXIT_SUCCESS; + } + + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + + if (!bitmask_isbitset(cpus_chosen, cpu)) + continue; + + printf(_("analyzing CPU %d:\n"), cpu); + + if (sysfs_is_cpu_online(cpu) != 1) { + printf(_(" *is offline\n")); + printf("\n"); + continue; + } + + switch (output_param) { + case 'b': + get_boost_mode(cpu); + break; + case 'e': + debug_output_one(cpu); + 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, human); + 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; + } + if (ret) + return ret; + } + return ret; +} diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c new file mode 100644 index 000000000..08a405593 --- /dev/null +++ b/tools/power/cpupower/utils/cpufreq-set.c @@ -0,0 +1,333 @@ +/* + * (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 <getopt.h> + +#include "cpufreq.h" +#include "cpuidle.h" +#include "helpers/helpers.h" + +#define NORM_FREQ_LEN 32 + +static struct option set_opts[] = { + {"min", required_argument, NULL, 'd'}, + {"max", required_argument, NULL, 'u'}, + {"governor", required_argument, NULL, 'g'}, + {"freq", required_argument, NULL, 'f'}, + {"related", no_argument, NULL, 'r'}, + { }, +}; + +static void print_error(void) +{ + printf(_("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) +{ + printf(_("invalid or unknown argument\n")); +} + +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(_("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 cmd_freq_set(int argc, char **argv) +{ + extern char *optarg; + extern int optind, opterr, optopt; + int ret = 0, cont = 1; + int double_parm = 0, related = 0, policychange = 0; + unsigned long freq = 0; + char gov[20]; + unsigned int cpu; + + struct cpufreq_policy new_pol = { + .min = 0, + .max = 0, + .governor = NULL, + }; + + /* parameter parsing */ + do { + ret = getopt_long(argc, argv, "d:u:g:f:r", set_opts, NULL); + switch (ret) { + case '?': + print_unknown_arg(); + return -EINVAL; + case -1: + cont = 0; + break; + case 'r': + if (related) + double_parm++; + related++; + 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, "%19s", gov)) != 1) { + print_unknown_arg(); + return -EINVAL; + } + new_pol.governor = gov; + break; + } + } while (cont); + + /* parameter checking */ + if (double_parm) { + printf("the same parameter was passed more than once\n"); + return -EINVAL; + } + + if (freq && policychange) { + printf(_("the -f/--freq parameter cannot be combined with -d/--min, -u/--max or\n" + "-g/--governor parameters\n")); + return -EINVAL; + } + + if (!freq && !policychange) { + printf(_("At least one parameter out of -f/--freq, -d/--min, -u/--max, and\n" + "-g/--governor must be passed\n")); + return -EINVAL; + } + + /* Default is: set all CPUs */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setall(cpus_chosen); + + /* Also set frequency settings for related CPUs if -r is passed */ + if (related) { + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + struct cpufreq_affected_cpus *cpus; + + if (!bitmask_isbitset(cpus_chosen, cpu) || + cpupower_is_cpu_online(cpu) != 1) + continue; + + cpus = cpufreq_get_related_cpus(cpu); + if (!cpus) + break; + while (cpus->next) { + bitmask_setbit(cpus_chosen, cpus->cpu); + cpus = cpus->next; + } + /* Set the last cpu in related cpus list */ + bitmask_setbit(cpus_chosen, cpus->cpu); + cpufreq_put_related_cpus(cpus); + } + } + + + /* loop over CPUs */ + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + + if (!bitmask_isbitset(cpus_chosen, cpu) || + cpupower_is_cpu_online(cpu) != 1) + continue; + + printf(_("Setting cpu: %d\n"), cpu); + ret = do_one_cpu(cpu, &new_pol, freq, policychange); + if (ret) { + print_error(); + return ret; + } + } + + return 0; +} diff --git a/tools/power/cpupower/utils/cpuidle-info.c b/tools/power/cpupower/utils/cpuidle-info.c new file mode 100644 index 000000000..b59c85def --- /dev/null +++ b/tools/power/cpupower/utils/cpuidle-info.c @@ -0,0 +1,214 @@ +/* + * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de> + * (C) 2010 Thomas Renninger <trenn@suse.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 <getopt.h> + +#include <cpuidle.h> + +#include "helpers/sysfs.h" +#include "helpers/helpers.h" +#include "helpers/bitmask.h" + +#define LINE_LEN 10 + +static void cpuidle_cpu_output(unsigned int cpu, int verbose) +{ + unsigned int idlestates, idlestate; + char *tmp; + + idlestates = cpuidle_state_count(cpu); + if (idlestates == 0) { + printf(_("CPU %u: No idle states\n"), cpu); + return; + } + + printf(_("Number of idle states: %d\n"), idlestates); + printf(_("Available idle states:")); + for (idlestate = 0; idlestate < idlestates; idlestate++) { + tmp = cpuidle_state_name(cpu, idlestate); + if (!tmp) + continue; + printf(" %s", tmp); + free(tmp); + } + printf("\n"); + + if (!verbose) + return; + + for (idlestate = 0; idlestate < idlestates; idlestate++) { + int disabled = cpuidle_is_state_disabled(cpu, idlestate); + /* Disabled interface not supported on older kernels */ + if (disabled < 0) + disabled = 0; + tmp = cpuidle_state_name(cpu, idlestate); + if (!tmp) + continue; + printf("%s%s:\n", tmp, (disabled) ? " (DISABLED) " : ""); + free(tmp); + + tmp = cpuidle_state_desc(cpu, idlestate); + if (!tmp) + continue; + printf(_("Flags/Description: %s\n"), tmp); + free(tmp); + + printf(_("Latency: %lu\n"), + cpuidle_state_latency(cpu, idlestate)); + printf(_("Usage: %lu\n"), + cpuidle_state_usage(cpu, idlestate)); + printf(_("Duration: %llu\n"), + cpuidle_state_time(cpu, idlestate)); + } +} + +static void cpuidle_general_output(void) +{ + char *tmp; + + tmp = cpuidle_get_driver(); + if (!tmp) { + printf(_("Could not determine cpuidle driver\n")); + return; + } + + printf(_("CPUidle driver: %s\n"), tmp); + free(tmp); + + tmp = cpuidle_get_governor(); + if (!tmp) { + printf(_("Could not determine cpuidle governor\n")); + return; + } + + printf(_("CPUidle governor: %s\n"), tmp); + free(tmp); +} + +static void proc_cpuidle_cpu_output(unsigned int cpu) +{ + long max_allowed_cstate = 2000000000; + unsigned int cstate, cstates; + + cstates = cpuidle_state_count(cpu); + if (cstates == 0) { + printf(_("CPU %u: No C-states info\n"), cpu); + return; + } + + printf(_("active state: C0\n")); + printf(_("max_cstate: C%u\n"), cstates-1); + printf(_("maximum allowed latency: %lu usec\n"), max_allowed_cstate); + printf(_("states:\t\n")); + for (cstate = 1; cstate < cstates; cstate++) { + printf(_(" C%d: " + "type[C%d] "), cstate, cstate); + printf(_("promotion[--] demotion[--] ")); + printf(_("latency[%03lu] "), + cpuidle_state_latency(cpu, cstate)); + printf(_("usage[%08lu] "), + cpuidle_state_usage(cpu, cstate)); + printf(_("duration[%020Lu] \n"), + cpuidle_state_time(cpu, cstate)); + } +} + +static struct option info_opts[] = { + {"silent", no_argument, NULL, 's'}, + {"proc", no_argument, NULL, 'o'}, + { }, +}; + +static inline void cpuidle_exit(int fail) +{ + exit(EXIT_FAILURE); +} + +int cmd_idle_info(int argc, char **argv) +{ + extern char *optarg; + extern int optind, opterr, optopt; + int ret = 0, cont = 1, output_param = 0, verbose = 1; + unsigned int cpu = 0; + + do { + ret = getopt_long(argc, argv, "os", info_opts, NULL); + if (ret == -1) + break; + switch (ret) { + case '?': + output_param = '?'; + cont = 0; + break; + case 's': + verbose = 0; + break; + case -1: + cont = 0; + break; + case 'o': + if (output_param) { + output_param = -1; + cont = 0; + break; + } + output_param = ret; + break; + } + } while (cont); + + switch (output_param) { + case -1: + printf(_("You can't specify more than one " + "output-specific argument\n")); + cpuidle_exit(EXIT_FAILURE); + case '?': + printf(_("invalid or unknown argument\n")); + cpuidle_exit(EXIT_FAILURE); + } + + /* Default is: show output of CPU 0 only */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setbit(cpus_chosen, 0); + + if (output_param == 0) + cpuidle_general_output(); + + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + + if (!bitmask_isbitset(cpus_chosen, cpu)) + continue; + + printf(_("analyzing CPU %d:\n"), cpu); + + if (sysfs_is_cpu_online(cpu) != 1) { + printf(_(" *is offline\n")); + printf("\n"); + continue; + } + + switch (output_param) { + + case 'o': + proc_cpuidle_cpu_output(cpu); + break; + case 0: + printf("\n"); + cpuidle_cpu_output(cpu, verbose); + break; + } + printf("\n"); + } + return EXIT_SUCCESS; +} diff --git a/tools/power/cpupower/utils/cpuidle-set.c b/tools/power/cpupower/utils/cpuidle-set.c new file mode 100644 index 000000000..569f268f4 --- /dev/null +++ b/tools/power/cpupower/utils/cpuidle-set.c @@ -0,0 +1,185 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <unistd.h> +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include <limits.h> +#include <string.h> +#include <ctype.h> +#include <getopt.h> + +#include <cpufreq.h> +#include <cpuidle.h> + +#include "helpers/helpers.h" + +static struct option info_opts[] = { + {"disable", required_argument, NULL, 'd'}, + {"enable", required_argument, NULL, 'e'}, + {"disable-by-latency", required_argument, NULL, 'D'}, + {"enable-all", no_argument, NULL, 'E'}, + { }, +}; + + +int cmd_idle_set(int argc, char **argv) +{ + extern char *optarg; + extern int optind, opterr, optopt; + int ret = 0, cont = 1, param = 0, disabled; + unsigned long long latency = 0, state_latency; + unsigned int cpu = 0, idlestate = 0, idlestates = 0; + char *endptr; + + do { + ret = getopt_long(argc, argv, "d:e:ED:", info_opts, NULL); + if (ret == -1) + break; + switch (ret) { + case '?': + param = '?'; + cont = 0; + break; + case 'd': + if (param) { + param = -1; + cont = 0; + break; + } + param = ret; + idlestate = atoi(optarg); + break; + case 'e': + if (param) { + param = -1; + cont = 0; + break; + } + param = ret; + idlestate = atoi(optarg); + break; + case 'D': + if (param) { + param = -1; + cont = 0; + break; + } + param = ret; + latency = strtoull(optarg, &endptr, 10); + if (*endptr != '\0') { + printf(_("Bad latency value: %s\n"), optarg); + exit(EXIT_FAILURE); + } + break; + case 'E': + if (param) { + param = -1; + cont = 0; + break; + } + param = ret; + break; + case -1: + cont = 0; + break; + } + } while (cont); + + switch (param) { + case -1: + printf(_("You can't specify more than one " + "output-specific argument\n")); + exit(EXIT_FAILURE); + case '?': + printf(_("invalid or unknown argument\n")); + exit(EXIT_FAILURE); + } + + /* Default is: set all CPUs */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setall(cpus_chosen); + + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + + if (!bitmask_isbitset(cpus_chosen, cpu)) + continue; + + if (cpupower_is_cpu_online(cpu) != 1) + continue; + + idlestates = cpuidle_state_count(cpu); + if (idlestates <= 0) + continue; + + switch (param) { + case 'd': + ret = cpuidle_state_disable(cpu, idlestate, 1); + if (ret == 0) + printf(_("Idlestate %u disabled on CPU %u\n"), idlestate, cpu); + else if (ret == -1) + printf(_("Idlestate %u not available on CPU %u\n"), + idlestate, cpu); + else if (ret == -2) + printf(_("Idlestate disabling not supported by kernel\n")); + else + printf(_("Idlestate %u not disabled on CPU %u\n"), + idlestate, cpu); + break; + case 'e': + ret = cpuidle_state_disable(cpu, idlestate, 0); + if (ret == 0) + printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); + else if (ret == -1) + printf(_("Idlestate %u not available on CPU %u\n"), + idlestate, cpu); + else if (ret == -2) + printf(_("Idlestate enabling not supported by kernel\n")); + else + printf(_("Idlestate %u not enabled on CPU %u\n"), + idlestate, cpu); + break; + case 'D': + for (idlestate = 0; idlestate < idlestates; idlestate++) { + disabled = cpuidle_is_state_disabled + (cpu, idlestate); + state_latency = cpuidle_state_latency + (cpu, idlestate); + if (disabled == 1) { + if (latency > state_latency){ + ret = cpuidle_state_disable + (cpu, idlestate, 0); + if (ret == 0) + printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); + } + continue; + } + if (latency <= state_latency){ + ret = cpuidle_state_disable + (cpu, idlestate, 1); + if (ret == 0) + printf(_("Idlestate %u disabled on CPU %u\n"), idlestate, cpu); + } + } + break; + case 'E': + for (idlestate = 0; idlestate < idlestates; idlestate++) { + disabled = cpuidle_is_state_disabled + (cpu, idlestate); + if (disabled == 1) { + ret = cpuidle_state_disable + (cpu, idlestate, 0); + if (ret == 0) + printf(_("Idlestate %u enabled on CPU %u\n"), idlestate, cpu); + } + } + break; + default: + /* Not reachable with proper args checking */ + printf(_("Invalid or unknown argument\n")); + exit(EXIT_FAILURE); + break; + } + } + return EXIT_SUCCESS; +} diff --git a/tools/power/cpupower/utils/cpupower-info.c b/tools/power/cpupower/utils/cpupower-info.c new file mode 100644 index 000000000..c7caa8eaa --- /dev/null +++ b/tools/power/cpupower/utils/cpupower-info.c @@ -0,0 +1,106 @@ +/* + * (C) 2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + */ + + +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> +#include <getopt.h> + +#include "helpers/helpers.h" +#include "helpers/sysfs.h" + +static struct option set_opts[] = { + {"perf-bias", optional_argument, NULL, 'b'}, + { }, +}; + +static void print_wrong_arg_exit(void) +{ + printf(_("invalid or unknown argument\n")); + exit(EXIT_FAILURE); +} + +int cmd_info(int argc, char **argv) +{ + extern char *optarg; + extern int optind, opterr, optopt; + unsigned int cpu; + + union { + struct { + int perf_bias:1; + }; + int params; + } params = {}; + int ret = 0; + + setlocale(LC_ALL, ""); + textdomain(PACKAGE); + + /* parameter parsing */ + while ((ret = getopt_long(argc, argv, "b", set_opts, NULL)) != -1) { + switch (ret) { + case 'b': + if (params.perf_bias) + print_wrong_arg_exit(); + params.perf_bias = 1; + break; + default: + print_wrong_arg_exit(); + } + }; + + if (!params.params) + params.params = 0x7; + + /* Default is: show output of CPU 0 only */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setbit(cpus_chosen, 0); + + /* Add more per cpu options here */ + if (!params.perf_bias) + return ret; + + if (params.perf_bias) { + if (!run_as_root) { + params.perf_bias = 0; + printf(_("Intel's performance bias setting needs root privileges\n")); + } else if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_PERF_BIAS)) { + printf(_("System does not support Intel's performance" + " bias setting\n")); + params.perf_bias = 0; + } + } + + /* loop over CPUs */ + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + + if (!bitmask_isbitset(cpus_chosen, cpu)) + continue; + + printf(_("analyzing CPU %d:\n"), cpu); + + if (sysfs_is_cpu_online(cpu) != 1){ + printf(_(" *is offline\n")); + continue; + } + + if (params.perf_bias) { + ret = msr_intel_get_perf_bias(cpu); + if (ret < 0) { + fprintf(stderr, + _("Could not read perf-bias value[%d]\n"), ret); + exit(EXIT_FAILURE); + } else + printf(_("perf-bias: %d\n"), ret); + } + } + return 0; +} diff --git a/tools/power/cpupower/utils/cpupower-set.c b/tools/power/cpupower/utils/cpupower-set.c new file mode 100644 index 000000000..532f46b9a --- /dev/null +++ b/tools/power/cpupower/utils/cpupower-set.c @@ -0,0 +1,99 @@ +/* + * (C) 2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + */ + + +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <string.h> +#include <getopt.h> + +#include "helpers/helpers.h" +#include "helpers/sysfs.h" +#include "helpers/bitmask.h" + +static struct option set_opts[] = { + {"perf-bias", required_argument, NULL, 'b'}, + { }, +}; + +static void print_wrong_arg_exit(void) +{ + printf(_("invalid or unknown argument\n")); + exit(EXIT_FAILURE); +} + +int cmd_set(int argc, char **argv) +{ + extern char *optarg; + extern int optind, opterr, optopt; + unsigned int cpu; + + union { + struct { + int perf_bias:1; + }; + int params; + } params; + int perf_bias = 0; + int ret = 0; + + setlocale(LC_ALL, ""); + textdomain(PACKAGE); + + params.params = 0; + /* parameter parsing */ + while ((ret = getopt_long(argc, argv, "b:", + set_opts, NULL)) != -1) { + switch (ret) { + case 'b': + if (params.perf_bias) + print_wrong_arg_exit(); + perf_bias = atoi(optarg); + if (perf_bias < 0 || perf_bias > 15) { + printf(_("--perf-bias param out " + "of range [0-%d]\n"), 15); + print_wrong_arg_exit(); + } + params.perf_bias = 1; + break; + default: + print_wrong_arg_exit(); + } + }; + + if (!params.params) + print_wrong_arg_exit(); + + /* Default is: set all CPUs */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setall(cpus_chosen); + + /* loop over CPUs */ + for (cpu = bitmask_first(cpus_chosen); + cpu <= bitmask_last(cpus_chosen); cpu++) { + + if (!bitmask_isbitset(cpus_chosen, cpu)) + continue; + + if (sysfs_is_cpu_online(cpu) != 1){ + fprintf(stderr, _("Cannot set values on CPU %d:"), cpu); + fprintf(stderr, _(" *is offline\n")); + continue; + } + + if (params.perf_bias) { + ret = msr_intel_set_perf_bias(cpu, perf_bias); + if (ret) { + fprintf(stderr, _("Error setting perf-bias " + "value on CPU %d\n"), cpu); + break; + } + } + } + return ret; +} diff --git a/tools/power/cpupower/utils/cpupower.c b/tools/power/cpupower/utils/cpupower.c new file mode 100644 index 000000000..2dccf4998 --- /dev/null +++ b/tools/power/cpupower/utils/cpupower.c @@ -0,0 +1,238 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Ideas taken over from the perf userspace tool (included in the Linus + * kernel git repo): subcommand builtins and param parsing. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <sched.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/utsname.h> + +#include "builtin.h" +#include "helpers/helpers.h" +#include "helpers/bitmask.h" + +#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0])) + +static int cmd_help(int argc, const char **argv); + +/* Global cpu_info object available for all binaries + * Info only retrieved from CPU 0 + * + * Values will be zero/unknown on non X86 archs + */ +struct cpupower_cpu_info cpupower_cpu_info; +int run_as_root; +int base_cpu; +/* Affected cpus chosen by -c/--cpu param */ +struct bitmask *cpus_chosen; + +#ifdef DEBUG +int be_verbose; +#endif + +static void print_help(void); + +struct cmd_struct { + const char *cmd; + int (*main)(int, const char **); + int needs_root; +}; + +static struct cmd_struct commands[] = { + { "frequency-info", cmd_freq_info, 0 }, + { "frequency-set", cmd_freq_set, 1 }, + { "idle-info", cmd_idle_info, 0 }, + { "idle-set", cmd_idle_set, 1 }, + { "set", cmd_set, 1 }, + { "info", cmd_info, 0 }, + { "monitor", cmd_monitor, 0 }, + { "help", cmd_help, 0 }, + /* { "bench", cmd_bench, 1 }, */ +}; + +static void print_help(void) +{ + unsigned int i; + +#ifdef DEBUG + printf(_("Usage:\tcpupower [-d|--debug] [-c|--cpu cpulist ] <command> [<args>]\n")); +#else + printf(_("Usage:\tcpupower [-c|--cpu cpulist ] <command> [<args>]\n")); +#endif + printf(_("Supported commands are:\n")); + for (i = 0; i < ARRAY_SIZE(commands); i++) + printf("\t%s\n", commands[i].cmd); + printf(_("\nNot all commands can make use of the -c cpulist option.\n")); + printf(_("\nUse 'cpupower help <command>' for getting help for above commands.\n")); +} + +static int print_man_page(const char *subpage) +{ + int len; + char *page; + + len = 10; /* enough for "cpupower-" */ + if (subpage != NULL) + len += strlen(subpage); + + page = malloc(len); + if (!page) + return -ENOMEM; + + sprintf(page, "cpupower"); + if ((subpage != NULL) && strcmp(subpage, "help")) { + strcat(page, "-"); + strcat(page, subpage); + } + + execlp("man", "man", page, NULL); + + /* should not be reached */ + return -EINVAL; +} + +static int cmd_help(int argc, const char **argv) +{ + if (argc > 1) { + print_man_page(argv[1]); /* exits within execlp() */ + return EXIT_FAILURE; + } + + print_help(); + return EXIT_SUCCESS; +} + +static void print_version(void) +{ + printf(PACKAGE " " VERSION "\n"); + printf(_("Report errors and bugs to %s, please.\n"), PACKAGE_BUGREPORT); +} + +static void handle_options(int *argc, const char ***argv) +{ + int ret, x, new_argc = 0; + + if (*argc < 1) + return; + + for (x = 0; x < *argc && ((*argv)[x])[0] == '-'; x++) { + const char *param = (*argv)[x]; + if (!strcmp(param, "-h") || !strcmp(param, "--help")) { + print_help(); + exit(EXIT_SUCCESS); + } else if (!strcmp(param, "-c") || !strcmp(param, "--cpu")) { + if (*argc < 2) { + print_help(); + exit(EXIT_FAILURE); + } + if (!strcmp((*argv)[x+1], "all")) + bitmask_setall(cpus_chosen); + else { + ret = bitmask_parselist( + (*argv)[x+1], cpus_chosen); + if (ret < 0) { + fprintf(stderr, _("Error parsing cpu " + "list\n")); + exit(EXIT_FAILURE); + } + } + x += 1; + /* Cut out param: cpupower -c 1 info -> cpupower info */ + new_argc += 2; + continue; + } else if (!strcmp(param, "-v") || + !strcmp(param, "--version")) { + print_version(); + exit(EXIT_SUCCESS); +#ifdef DEBUG + } else if (!strcmp(param, "-d") || !strcmp(param, "--debug")) { + be_verbose = 1; + new_argc++; + continue; +#endif + } else { + fprintf(stderr, "Unknown option: %s\n", param); + print_help(); + exit(EXIT_FAILURE); + } + } + *argc -= new_argc; + *argv += new_argc; +} + +int main(int argc, const char *argv[]) +{ + const char *cmd; + unsigned int i, ret; + struct stat statbuf; + struct utsname uts; + char pathname[32]; + + cpus_chosen = bitmask_alloc(sysconf(_SC_NPROCESSORS_CONF)); + + argc--; + argv += 1; + + handle_options(&argc, &argv); + + cmd = argv[0]; + + if (argc < 1) { + print_help(); + return EXIT_FAILURE; + } + + setlocale(LC_ALL, ""); + textdomain(PACKAGE); + + /* Turn "perf cmd --help" into "perf help cmd" */ + if (argc > 1 && !strcmp(argv[1], "--help")) { + argv[1] = argv[0]; + argv[0] = cmd = "help"; + } + + base_cpu = sched_getcpu(); + if (base_cpu < 0) { + fprintf(stderr, _("No valid cpus found.\n")); + return EXIT_FAILURE; + } + + get_cpu_info(&cpupower_cpu_info); + run_as_root = !geteuid(); + if (run_as_root) { + ret = uname(&uts); + sprintf(pathname, "/dev/cpu/%d/msr", base_cpu); + if (!ret && !strcmp(uts.machine, "x86_64") && + stat(pathname, &statbuf) != 0) { + if (system("modprobe msr") == -1) + fprintf(stderr, _("MSR access not available.\n")); + } + } + + for (i = 0; i < ARRAY_SIZE(commands); i++) { + struct cmd_struct *p = commands + i; + if (strcmp(p->cmd, cmd)) + continue; + if (!run_as_root && p->needs_root) { + fprintf(stderr, _("Subcommand %s needs root " + "privileges\n"), cmd); + return EXIT_FAILURE; + } + ret = p->main(argc, argv); + if (cpus_chosen) + bitmask_free(cpus_chosen); + return ret; + } + print_help(); + return EXIT_FAILURE; +} diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c new file mode 100644 index 000000000..9607ada5b --- /dev/null +++ b/tools/power/cpupower/utils/helpers/amd.c @@ -0,0 +1,156 @@ +// SPDX-License-Identifier: GPL-2.0 +#if defined(__i386__) || defined(__x86_64__) +#include <unistd.h> +#include <errno.h> +#include <stdio.h> +#include <stdint.h> + +#include <pci/pci.h> + +#include "helpers/helpers.h" + +#define MSR_AMD_PSTATE_STATUS 0xc0010063 +#define MSR_AMD_PSTATE 0xc0010064 +#define MSR_AMD_PSTATE_LIMIT 0xc0010061 + +union msr_pstate { + struct { + unsigned fid:6; + unsigned did:3; + unsigned vid:7; + unsigned res1:6; + unsigned nbdid:1; + unsigned res2:2; + unsigned nbvid:7; + unsigned iddval:8; + unsigned idddiv:2; + unsigned res3:21; + unsigned en:1; + } bits; + struct { + unsigned fid:8; + unsigned did:6; + unsigned vid:8; + unsigned iddval:8; + unsigned idddiv:2; + unsigned res1:31; + unsigned en:1; + } fam17h_bits; + unsigned long long val; +}; + +static int get_did(int family, union msr_pstate pstate) +{ + int t; + + if (family == 0x12) + t = pstate.val & 0xf; + else if (family == 0x17) + t = pstate.fam17h_bits.did; + else + t = pstate.bits.did; + + return t; +} + +static int get_cof(int family, union msr_pstate pstate) +{ + int t; + int fid, did, cof; + + did = get_did(family, pstate); + if (family == 0x17) { + fid = pstate.fam17h_bits.fid; + cof = 200 * fid / did; + } else { + t = 0x10; + fid = pstate.bits.fid; + if (family == 0x11) + t = 0x8; + cof = (100 * (fid + t)) >> did; + } + return cof; +} + +/* Needs: + * cpu -> the cpu that gets evaluated + * cpu_family -> The cpu's family (0x10, 0x12,...) + * boots_states -> how much boost states the machines support + * + * Fills up: + * pstates -> a pointer to an array of size MAX_HW_PSTATES + * must be initialized with zeros. + * All available HW pstates (including boost states) + * no -> amount of pstates above array got filled up with + * + * returns zero on success, -1 on failure + */ +int decode_pstates(unsigned int cpu, unsigned int cpu_family, + int boost_states, unsigned long *pstates, int *no) +{ + int i, psmax, pscur; + union msr_pstate pstate; + unsigned long long val; + + /* Only read out frequencies from HW when CPU might be boostable + to keep the code as short and clean as possible. + Otherwise frequencies are exported via ACPI tables. + */ + if (cpu_family < 0x10 || cpu_family == 0x14) + return -1; + + if (read_msr(cpu, MSR_AMD_PSTATE_LIMIT, &val)) + return -1; + + psmax = (val >> 4) & 0x7; + + if (read_msr(cpu, MSR_AMD_PSTATE_STATUS, &val)) + return -1; + + pscur = val & 0x7; + + pscur += boost_states; + psmax += boost_states; + for (i = 0; i <= psmax; i++) { + if (i >= MAX_HW_PSTATES) { + fprintf(stderr, "HW pstates [%d] exceeding max [%d]\n", + psmax, MAX_HW_PSTATES); + return -1; + } + if (read_msr(cpu, MSR_AMD_PSTATE + i, &pstate.val)) + return -1; + if ((cpu_family == 0x17) && (!pstate.fam17h_bits.en)) + continue; + else if (!pstate.bits.en) + continue; + + pstates[i] = get_cof(cpu_family, pstate); + } + *no = i; + return 0; +} + +int amd_pci_get_num_boost_states(int *active, int *states) +{ + struct pci_access *pci_acc; + struct pci_dev *device; + uint8_t val = 0; + + *active = *states = 0; + + device = pci_slot_func_init(&pci_acc, 0x18, 4); + + if (device == NULL) + return -ENODEV; + + val = pci_read_byte(device, 0x15c); + if (val & 3) + *active = 1; + else + *active = 0; + *states = (val >> 2) & 7; + + pci_cleanup(pci_acc); + return 0; +} +#endif /* defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/helpers/bitmask.c b/tools/power/cpupower/utils/helpers/bitmask.c new file mode 100644 index 000000000..6c7932f5b --- /dev/null +++ b/tools/power/cpupower/utils/helpers/bitmask.c @@ -0,0 +1,293 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <helpers/bitmask.h> + +/* How many bits in an unsigned long */ +#define bitsperlong (8 * sizeof(unsigned long)) + +/* howmany(a,b) : how many elements of size b needed to hold all of a */ +#define howmany(x, y) (((x)+((y)-1))/(y)) + +/* How many longs in mask of n bits */ +#define longsperbits(n) howmany(n, bitsperlong) + +#define max(a, b) ((a) > (b) ? (a) : (b)) + +/* + * Allocate and free `struct bitmask *` + */ + +/* Allocate a new `struct bitmask` with a size of n bits */ +struct bitmask *bitmask_alloc(unsigned int n) +{ + struct bitmask *bmp; + + bmp = malloc(sizeof(*bmp)); + if (bmp == 0) + return 0; + bmp->size = n; + bmp->maskp = calloc(longsperbits(n), sizeof(unsigned long)); + if (bmp->maskp == 0) { + free(bmp); + return 0; + } + return bmp; +} + +/* Free `struct bitmask` */ +void bitmask_free(struct bitmask *bmp) +{ + if (bmp == 0) + return; + free(bmp->maskp); + bmp->maskp = (unsigned long *)0xdeadcdef; /* double free tripwire */ + free(bmp); +} + +/* + * The routines _getbit() and _setbit() are the only + * routines that actually understand the layout of bmp->maskp[]. + * + * On little endian architectures, this could simply be an array of + * bytes. But the kernel layout of bitmasks _is_ visible to userspace + * via the sched_(set/get)affinity calls in Linux 2.6, and on big + * endian architectures, it is painfully obvious that this is an + * array of unsigned longs. + */ + +/* Return the value (0 or 1) of bit n in bitmask bmp */ +static unsigned int _getbit(const struct bitmask *bmp, unsigned int n) +{ + if (n < bmp->size) + return (bmp->maskp[n/bitsperlong] >> (n % bitsperlong)) & 1; + else + return 0; +} + +/* Set bit n in bitmask bmp to value v (0 or 1) */ +static void _setbit(struct bitmask *bmp, unsigned int n, unsigned int v) +{ + if (n < bmp->size) { + if (v) + bmp->maskp[n/bitsperlong] |= 1UL << (n % bitsperlong); + else + bmp->maskp[n/bitsperlong] &= + ~(1UL << (n % bitsperlong)); + } +} + +/* + * When parsing bitmask lists, only allow numbers, separated by one + * of the allowed next characters. + * + * The parameter 'sret' is the return from a sscanf "%u%c". It is + * -1 if the sscanf input string was empty. It is 0 if the first + * character in the sscanf input string was not a decimal number. + * It is 1 if the unsigned number matching the "%u" was the end of the + * input string. It is 2 if one or more additional characters followed + * the matched unsigned number. If it is 2, then 'nextc' is the first + * character following the number. The parameter 'ok_next_chars' + * is the nul-terminated list of allowed next characters. + * + * The mask term just scanned was ok if and only if either the numbers + * matching the %u were all of the input or if the next character in + * the input past the numbers was one of the allowed next characters. + */ +static int scan_was_ok(int sret, char nextc, const char *ok_next_chars) +{ + return sret == 1 || + (sret == 2 && strchr(ok_next_chars, nextc) != NULL); +} + +static const char *nexttoken(const char *q, int sep) +{ + if (q) + q = strchr(q, sep); + if (q) + q++; + return q; +} + +/* Set a single bit i in bitmask */ +struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i) +{ + _setbit(bmp, i, 1); + return bmp; +} + +/* Set all bits in bitmask: bmp = ~0 */ +struct bitmask *bitmask_setall(struct bitmask *bmp) +{ + unsigned int i; + for (i = 0; i < bmp->size; i++) + _setbit(bmp, i, 1); + return bmp; +} + +/* Clear all bits in bitmask: bmp = 0 */ +struct bitmask *bitmask_clearall(struct bitmask *bmp) +{ + unsigned int i; + for (i = 0; i < bmp->size; i++) + _setbit(bmp, i, 0); + return bmp; +} + +/* True if all bits are clear */ +int bitmask_isallclear(const struct bitmask *bmp) +{ + unsigned int i; + for (i = 0; i < bmp->size; i++) + if (_getbit(bmp, i)) + return 0; + return 1; +} + +/* True if specified bit i is set */ +int bitmask_isbitset(const struct bitmask *bmp, unsigned int i) +{ + return _getbit(bmp, i); +} + +/* Number of lowest set bit (min) */ +unsigned int bitmask_first(const struct bitmask *bmp) +{ + return bitmask_next(bmp, 0); +} + +/* Number of highest set bit (max) */ +unsigned int bitmask_last(const struct bitmask *bmp) +{ + unsigned int i; + unsigned int m = bmp->size; + for (i = 0; i < bmp->size; i++) + if (_getbit(bmp, i)) + m = i; + return m; +} + +/* Number of next set bit at or above given bit i */ +unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i) +{ + unsigned int n; + for (n = i; n < bmp->size; n++) + if (_getbit(bmp, n)) + break; + return n; +} + +/* + * Parses a comma-separated list of numbers and ranges of numbers, + * with optional ':%u' strides modifying ranges, into provided bitmask. + * Some examples of input lists and their equivalent simple list: + * Input Equivalent to + * 0-3 0,1,2,3 + * 0-7:2 0,2,4,6 + * 1,3,5-7 1,3,5,6,7 + * 0-3:2,8-15:4 0,2,8,12 + */ +int bitmask_parselist(const char *buf, struct bitmask *bmp) +{ + const char *p, *q; + + bitmask_clearall(bmp); + + q = buf; + while (p = q, q = nexttoken(q, ','), p) { + unsigned int a; /* begin of range */ + unsigned int b; /* end of range */ + unsigned int s; /* stride */ + const char *c1, *c2; /* next tokens after '-' or ',' */ + char nextc; /* char after sscanf %u match */ + int sret; /* sscanf return (number of matches) */ + + sret = sscanf(p, "%u%c", &a, &nextc); + if (!scan_was_ok(sret, nextc, ",-")) + goto err; + b = a; + s = 1; + c1 = nexttoken(p, '-'); + c2 = nexttoken(p, ','); + if (c1 != NULL && (c2 == NULL || c1 < c2)) { + sret = sscanf(c1, "%u%c", &b, &nextc); + if (!scan_was_ok(sret, nextc, ",:")) + goto err; + c1 = nexttoken(c1, ':'); + if (c1 != NULL && (c2 == NULL || c1 < c2)) { + sret = sscanf(c1, "%u%c", &s, &nextc); + if (!scan_was_ok(sret, nextc, ",")) + goto err; + } + } + if (!(a <= b)) + goto err; + if (b >= bmp->size) + goto err; + while (a <= b) { + _setbit(bmp, a, 1); + a += s; + } + } + return 0; +err: + bitmask_clearall(bmp); + return -1; +} + +/* + * emit(buf, buflen, rbot, rtop, len) + * + * Helper routine for bitmask_displaylist(). Write decimal number + * or range to buf+len, suppressing output past buf+buflen, with optional + * comma-prefix. Return len of what would be written to buf, if it + * all fit. + */ + +static inline int emit(char *buf, int buflen, int rbot, int rtop, int len) +{ + if (len > 0) + len += snprintf(buf + len, max(buflen - len, 0), ","); + if (rbot == rtop) + len += snprintf(buf + len, max(buflen - len, 0), "%d", rbot); + else + len += snprintf(buf + len, max(buflen - len, 0), "%d-%d", + rbot, rtop); + return len; +} + +/* + * Write decimal list representation of bmp to buf. + * + * Output format is a comma-separated list of decimal numbers and + * ranges. Consecutively set bits are shown as two hyphen-separated + * decimal numbers, the smallest and largest bit numbers set in + * the range. Output format is compatible with the format + * accepted as input by bitmap_parselist(). + * + * The return value is the number of characters which would be + * generated for the given input, excluding the trailing '\0', as + * per ISO C99. + */ + +int bitmask_displaylist(char *buf, int buflen, const struct bitmask *bmp) +{ + int len = 0; + /* current bit is 'cur', most recently seen range is [rbot, rtop] */ + unsigned int cur, rbot, rtop; + + if (buflen > 0) + *buf = 0; + rbot = cur = bitmask_first(bmp); + while (cur < bmp->size) { + rtop = cur; + cur = bitmask_next(bmp, cur+1); + if (cur >= bmp->size || cur > rtop + 1) { + len = emit(buf, buflen, rbot, rtop, len); + rbot = cur; + } + } + return len; +} diff --git a/tools/power/cpupower/utils/helpers/bitmask.h b/tools/power/cpupower/utils/helpers/bitmask.h new file mode 100644 index 000000000..b98d93a44 --- /dev/null +++ b/tools/power/cpupower/utils/helpers/bitmask.h @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __CPUPOWER_BITMASK__ +#define __CPUPOWER_BITMASK__ + +/* Taken over from libbitmask, a project initiated from sgi: + * Url: http://oss.sgi.com/projects/cpusets/ + * Unfortunately it's not very widespread, therefore relevant parts are + * pasted here. + */ + +struct bitmask { + unsigned int size; + unsigned long *maskp; +}; + +struct bitmask *bitmask_alloc(unsigned int n); +void bitmask_free(struct bitmask *bmp); + +struct bitmask *bitmask_setbit(struct bitmask *bmp, unsigned int i); +struct bitmask *bitmask_setall(struct bitmask *bmp); +struct bitmask *bitmask_clearall(struct bitmask *bmp); + +unsigned int bitmask_first(const struct bitmask *bmp); +unsigned int bitmask_next(const struct bitmask *bmp, unsigned int i); +unsigned int bitmask_last(const struct bitmask *bmp); +int bitmask_isallclear(const struct bitmask *bmp); +int bitmask_isbitset(const struct bitmask *bmp, unsigned int i); + +int bitmask_parselist(const char *buf, struct bitmask *bmp); +int bitmask_displaylist(char *buf, int len, const struct bitmask *bmp); + + + +#endif /*__CPUPOWER_BITMASK__ */ diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c new file mode 100644 index 000000000..732b0b41b --- /dev/null +++ b/tools/power/cpupower/utils/helpers/cpuid.c @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <unistd.h> +#include <stdlib.h> + +#include "helpers/helpers.h" + +static const char *cpu_vendor_table[X86_VENDOR_MAX] = { + "Unknown", "GenuineIntel", "AuthenticAMD", +}; + +#if defined(__i386__) || defined(__x86_64__) + +/* from gcc */ +#include <cpuid.h> + +/* + * CPUID functions returning a single datum + * + * Define unsigned int cpuid_e[abcd]x(unsigned int op) + */ +#define cpuid_func(reg) \ + unsigned int cpuid_##reg(unsigned int op) \ + { \ + unsigned int eax, ebx, ecx, edx; \ + __cpuid(op, eax, ebx, ecx, edx); \ + return reg; \ + } +cpuid_func(eax); +cpuid_func(ebx); +cpuid_func(ecx); +cpuid_func(edx); + +#endif /* defined(__i386__) || defined(__x86_64__) */ + +/* get_cpu_info + * + * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo + * + * Returns 0 on success or a negativ error code + * + * TBD: Should there be a cpuid alternative for this if /proc is not mounted? + */ +int get_cpu_info(struct cpupower_cpu_info *cpu_info) +{ + FILE *fp; + char value[64]; + unsigned int proc, x; + unsigned int unknown = 0xffffff; + unsigned int cpuid_level, ext_cpuid_level; + + int ret = -EINVAL; + + cpu_info->vendor = X86_VENDOR_UNKNOWN; + cpu_info->family = unknown; + cpu_info->model = unknown; + cpu_info->stepping = unknown; + cpu_info->caps = 0; + + fp = fopen("/proc/cpuinfo", "r"); + if (!fp) + return -EIO; + + while (!feof(fp)) { + if (!fgets(value, 64, fp)) + continue; + value[63 - 1] = '\0'; + + if (!strncmp(value, "processor\t: ", 12)) + sscanf(value, "processor\t: %u", &proc); + + if (proc != (unsigned int)base_cpu) + continue; + + /* Get CPU vendor */ + if (!strncmp(value, "vendor_id", 9)) { + for (x = 1; x < X86_VENDOR_MAX; x++) { + if (strstr(value, cpu_vendor_table[x])) + cpu_info->vendor = x; + } + /* Get CPU family, etc. */ + } else if (!strncmp(value, "cpu family\t: ", 13)) { + sscanf(value, "cpu family\t: %u", + &cpu_info->family); + } else if (!strncmp(value, "model\t\t: ", 9)) { + sscanf(value, "model\t\t: %u", + &cpu_info->model); + } else if (!strncmp(value, "stepping\t: ", 10)) { + sscanf(value, "stepping\t: %u", + &cpu_info->stepping); + + /* Exit -> all values must have been set */ + if (cpu_info->vendor == X86_VENDOR_UNKNOWN || + cpu_info->family == unknown || + cpu_info->model == unknown || + cpu_info->stepping == unknown) { + ret = -EINVAL; + goto out; + } + + ret = 0; + goto out; + } + } + ret = -ENODEV; +out: + fclose(fp); + /* Get some useful CPU capabilities from cpuid */ + if (cpu_info->vendor != X86_VENDOR_AMD && + cpu_info->vendor != X86_VENDOR_INTEL) + return ret; + + cpuid_level = cpuid_eax(0); + ext_cpuid_level = cpuid_eax(0x80000000); + + /* Invariant TSC */ + if (ext_cpuid_level >= 0x80000007 && + (cpuid_edx(0x80000007) & (1 << 8))) + cpu_info->caps |= CPUPOWER_CAP_INV_TSC; + + /* Aperf/Mperf registers support */ + if (cpuid_level >= 6 && (cpuid_ecx(6) & 0x1)) + cpu_info->caps |= CPUPOWER_CAP_APERF; + + /* AMD Boost state enable/disable register */ + if (cpu_info->vendor == X86_VENDOR_AMD) { + if (ext_cpuid_level >= 0x80000007 && + (cpuid_edx(0x80000007) & (1 << 9))) + cpu_info->caps |= CPUPOWER_CAP_AMD_CBP; + } + + if (cpu_info->vendor == X86_VENDOR_INTEL) { + if (cpuid_level >= 6 && + (cpuid_eax(6) & (1 << 1))) + cpu_info->caps |= CPUPOWER_CAP_INTEL_IDA; + } + + if (cpu_info->vendor == X86_VENDOR_INTEL) { + /* Intel's perf-bias MSR support */ + if (cpuid_level >= 6 && (cpuid_ecx(6) & (1 << 3))) + cpu_info->caps |= CPUPOWER_CAP_PERF_BIAS; + + /* Intel's Turbo Ratio Limit support */ + if (cpu_info->family == 6) { + switch (cpu_info->model) { + case 0x1A: /* Core i7, Xeon 5500 series + * Bloomfield, Gainstown NHM-EP + */ + case 0x1E: /* Core i7 and i5 Processor + * Clarksfield, Lynnfield, Jasper Forest + */ + case 0x1F: /* Core i7 and i5 Processor - Nehalem */ + case 0x25: /* Westmere Client + * Clarkdale, Arrandale + */ + case 0x2C: /* Westmere EP - Gulftown */ + cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; + break; + case 0x2A: /* SNB */ + case 0x2D: /* SNB Xeon */ + case 0x3A: /* IVB */ + case 0x3E: /* IVB Xeon */ + cpu_info->caps |= CPUPOWER_CAP_HAS_TURBO_RATIO; + cpu_info->caps |= CPUPOWER_CAP_IS_SNB; + break; + case 0x2E: /* Nehalem-EX Xeon - Beckton */ + case 0x2F: /* Westmere-EX Xeon - Eagleton */ + default: + break; + } + } + } + + /* printf("ID: %u - Extid: 0x%x - Caps: 0x%llx\n", + cpuid_level, ext_cpuid_level, cpu_info->caps); + */ + return ret; +} diff --git a/tools/power/cpupower/utils/helpers/helpers.h b/tools/power/cpupower/utils/helpers/helpers.h new file mode 100644 index 000000000..41da392be --- /dev/null +++ b/tools/power/cpupower/utils/helpers/helpers.h @@ -0,0 +1,174 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Miscellaneous helpers which do not fit or are worth + * to put into separate headers + */ + +#ifndef __CPUPOWERUTILS_HELPERS__ +#define __CPUPOWERUTILS_HELPERS__ + +#include <libintl.h> +#include <locale.h> + +#include "helpers/bitmask.h" +#include <cpupower.h> + +/* Internationalization ****************************/ +#ifdef NLS + +#define _(String) gettext(String) +#ifndef gettext_noop +#define gettext_noop(String) String +#endif +#define N_(String) gettext_noop(String) + +#else /* !NLS */ + +#define _(String) String +#define N_(String) String + +#endif +/* Internationalization ****************************/ + +extern int run_as_root; +extern int base_cpu; +extern struct bitmask *cpus_chosen; + +/* Global verbose (-d) stuff *********************************/ +/* + * define DEBUG via global Makefile variable + * Debug output is sent to stderr, do: + * cpupower monitor 2>/tmp/debug + * to split debug output away from normal output +*/ +#ifdef DEBUG +extern int be_verbose; + +#define dprint(fmt, ...) { \ + if (be_verbose) { \ + fprintf(stderr, "%s: " fmt, \ + __func__, ##__VA_ARGS__); \ + } \ + } +#else +static inline void dprint(const char *fmt, ...) { } +#endif +extern int be_verbose; +/* Global verbose (-v) stuff *********************************/ + +/* cpuid and cpuinfo helpers **************************/ +enum cpupower_cpu_vendor {X86_VENDOR_UNKNOWN = 0, X86_VENDOR_INTEL, + X86_VENDOR_AMD, X86_VENDOR_MAX}; + +#define CPUPOWER_CAP_INV_TSC 0x00000001 +#define CPUPOWER_CAP_APERF 0x00000002 +#define CPUPOWER_CAP_AMD_CBP 0x00000004 +#define CPUPOWER_CAP_PERF_BIAS 0x00000008 +#define CPUPOWER_CAP_HAS_TURBO_RATIO 0x00000010 +#define CPUPOWER_CAP_IS_SNB 0x00000020 +#define CPUPOWER_CAP_INTEL_IDA 0x00000040 + +#define CPUPOWER_AMD_CPBDIS 0x02000000 + +#define MAX_HW_PSTATES 10 + +struct cpupower_cpu_info { + enum cpupower_cpu_vendor vendor; + unsigned int family; + unsigned int model; + unsigned int stepping; + /* CPU capabilities read out from cpuid */ + unsigned long long caps; +}; + +/* get_cpu_info + * + * Extract CPU vendor, family, model, stepping info from /proc/cpuinfo + * + * Returns 0 on success or a negative error code + * Only used on x86, below global's struct values are zero/unknown on + * other archs + */ +extern int get_cpu_info(struct cpupower_cpu_info *cpu_info); +extern struct cpupower_cpu_info cpupower_cpu_info; +/* cpuid and cpuinfo helpers **************************/ + +/* X86 ONLY ****************************************/ +#if defined(__i386__) || defined(__x86_64__) + +#include <pci/pci.h> + +/* Read/Write msr ****************************/ +extern int read_msr(int cpu, unsigned int idx, unsigned long long *val); +extern int write_msr(int cpu, unsigned int idx, unsigned long long val); + +extern int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val); +extern int msr_intel_get_perf_bias(unsigned int cpu); +extern unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu); + +/* Read/Write msr ****************************/ + +/* PCI stuff ****************************/ +extern int amd_pci_get_num_boost_states(int *active, int *states); +extern struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain, + int bus, int slot, int func, int vendor, + int dev); +extern struct pci_dev *pci_slot_func_init(struct pci_access **pacc, + int slot, int func); + +/* PCI stuff ****************************/ + +/* AMD HW pstate decoding **************************/ + +extern int decode_pstates(unsigned int cpu, unsigned int cpu_family, + int boost_states, unsigned long *pstates, int *no); + +/* AMD HW pstate decoding **************************/ + +extern int cpufreq_has_boost_support(unsigned int cpu, int *support, + int *active, int * states); +/* + * CPUID functions returning a single datum + */ +unsigned int cpuid_eax(unsigned int op); +unsigned int cpuid_ebx(unsigned int op); +unsigned int cpuid_ecx(unsigned int op); +unsigned int cpuid_edx(unsigned int op); + +/* cpuid and cpuinfo helpers **************************/ +/* X86 ONLY ********************************************/ +#else +static inline int decode_pstates(unsigned int cpu, unsigned int cpu_family, + int boost_states, unsigned long *pstates, + int *no) +{ return -1; }; + +static inline int read_msr(int cpu, unsigned int idx, unsigned long long *val) +{ return -1; }; +static inline int write_msr(int cpu, unsigned int idx, unsigned long long val) +{ return -1; }; +static inline int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val) +{ return -1; }; +static inline int msr_intel_get_perf_bias(unsigned int cpu) +{ return -1; }; +static inline unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu) +{ return 0; }; + +/* Read/Write msr ****************************/ + +static inline int cpufreq_has_boost_support(unsigned int cpu, int *support, + int *active, int * states) +{ return -1; } + +/* cpuid and cpuinfo helpers **************************/ + +static inline unsigned int cpuid_eax(unsigned int op) { return 0; }; +static inline unsigned int cpuid_ebx(unsigned int op) { return 0; }; +static inline unsigned int cpuid_ecx(unsigned int op) { return 0; }; +static inline unsigned int cpuid_edx(unsigned int op) { return 0; }; +#endif /* defined(__i386__) || defined(__x86_64__) */ + +#endif /* __CPUPOWERUTILS_HELPERS__ */ diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c new file mode 100644 index 000000000..80fdf55f4 --- /dev/null +++ b/tools/power/cpupower/utils/helpers/misc.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0 +#if defined(__i386__) || defined(__x86_64__) + +#include "helpers/helpers.h" + +#define MSR_AMD_HWCR 0xc0010015 + +int cpufreq_has_boost_support(unsigned int cpu, int *support, int *active, + int *states) +{ + struct cpupower_cpu_info cpu_info; + int ret; + unsigned long long val; + + *support = *active = *states = 0; + + ret = get_cpu_info(&cpu_info); + if (ret) + return ret; + + if (cpupower_cpu_info.caps & CPUPOWER_CAP_AMD_CBP) { + *support = 1; + + /* AMD Family 0x17 does not utilize PCI D18F4 like prior + * families and has no fixed discrete boost states but + * has Hardware determined variable increments instead. + */ + + if (cpu_info.family == 0x17) { + if (!read_msr(cpu, MSR_AMD_HWCR, &val)) { + if (!(val & CPUPOWER_AMD_CPBDIS)) + *active = 1; + } + } else { + ret = amd_pci_get_num_boost_states(active, states); + if (ret) + return ret; + } + } else if (cpupower_cpu_info.caps & CPUPOWER_CAP_INTEL_IDA) + *support = *active = 1; + return 0; +} +#endif /* #if defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/helpers/msr.c b/tools/power/cpupower/utils/helpers/msr.c new file mode 100644 index 000000000..ab9950748 --- /dev/null +++ b/tools/power/cpupower/utils/helpers/msr.c @@ -0,0 +1,116 @@ +// SPDX-License-Identifier: GPL-2.0 +#if defined(__i386__) || defined(__x86_64__) + +#include <fcntl.h> +#include <stdio.h> +#include <unistd.h> +#include <stdint.h> + +#include "helpers/helpers.h" + +/* Intel specific MSRs */ +#define MSR_IA32_PERF_STATUS 0x198 +#define MSR_IA32_MISC_ENABLES 0x1a0 +#define MSR_IA32_ENERGY_PERF_BIAS 0x1b0 +#define MSR_NEHALEM_TURBO_RATIO_LIMIT 0x1ad + +/* + * 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 + */ + +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; +} + +/* + * write_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 + */ +int write_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_WRONLY); + if (fd < 0) + return -1; + if (lseek(fd, idx, SEEK_CUR) == -1) + goto err; + if (write(fd, &val, sizeof val) != sizeof val) + goto err; + close(fd); + return 0; + err: + close(fd); + return -1; +} + +int msr_intel_get_perf_bias(unsigned int cpu) +{ + unsigned long long val; + int ret; + + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_PERF_BIAS)) + return -1; + + ret = read_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &val); + if (ret) + return ret; + return val; +} + +int msr_intel_set_perf_bias(unsigned int cpu, unsigned int val) +{ + int ret; + + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_PERF_BIAS)) + return -1; + + ret = write_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, val); + if (ret) + return ret; + return 0; +} + +unsigned long long msr_intel_get_turbo_ratio(unsigned int cpu) +{ + unsigned long long val; + int ret; + + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_HAS_TURBO_RATIO)) + return -1; + + ret = read_msr(cpu, MSR_NEHALEM_TURBO_RATIO_LIMIT, &val); + if (ret) + return ret; + return val; +} +#endif diff --git a/tools/power/cpupower/utils/helpers/pci.c b/tools/power/cpupower/utils/helpers/pci.c new file mode 100644 index 000000000..113f3da2a --- /dev/null +++ b/tools/power/cpupower/utils/helpers/pci.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: GPL-2.0 +#if defined(__i386__) || defined(__x86_64__) + +#include <helpers/helpers.h> + +/* + * pci_acc_init + * + * PCI access helper function depending on libpci + * + * **pacc : if a valid pci_dev is returned + * *pacc must be passed to pci_acc_cleanup to free it + * + * domain: domain + * bus: bus + * slot: slot + * func: func + * vendor: vendor + * device: device + * Pass -1 for one of the six above to match any + * + * Returns : + * struct pci_dev which can be used with pci_{read,write}_* functions + * to access the PCI config space of matching pci devices + */ +struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain, int bus, + int slot, int func, int vendor, int dev) +{ + struct pci_filter filter_nb_link; + struct pci_dev *device; + + *pacc = pci_alloc(); + if (*pacc == NULL) + return NULL; + + pci_filter_init(*pacc, &filter_nb_link); + filter_nb_link.domain = domain; + filter_nb_link.bus = bus; + filter_nb_link.slot = slot; + filter_nb_link.func = func; + filter_nb_link.vendor = vendor; + filter_nb_link.device = dev; + + pci_init(*pacc); + pci_scan_bus(*pacc); + + for (device = (*pacc)->devices; device; device = device->next) { + if (pci_filter_match(&filter_nb_link, device)) + return device; + } + pci_cleanup(*pacc); + return NULL; +} + +/* Typically one wants to get a specific slot(device)/func of the root domain + and bus */ +struct pci_dev *pci_slot_func_init(struct pci_access **pacc, int slot, + int func) +{ + return pci_acc_init(pacc, 0, 0, slot, func, -1, -1); +} + +#endif /* defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c new file mode 100644 index 000000000..4e8fe2c7b --- /dev/null +++ b/tools/power/cpupower/utils/helpers/sysfs.c @@ -0,0 +1,472 @@ +/* + * (C) 2004-2009 Dominik Brodowski <linux@dominikbrodowski.de> + * (C) 2011 Thomas Renninger <trenn@novell.com> Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + */ + +#include <stdio.h> +#include <errno.h> +#include <stdlib.h> +#include <string.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <unistd.h> + +#include "helpers/sysfs.h" + +unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen) +{ + int fd; + ssize_t numread; + + fd = open(path, O_RDONLY); + if (fd == -1) + return 0; + + numread = read(fd, buf, buflen - 1); + if (numread < 1) { + close(fd); + return 0; + } + + buf[numread] = '\0'; + close(fd); + + return (unsigned int) numread; +} + +/* + * Detect whether a CPU is online + * + * Returns: + * 1 -> if CPU is online + * 0 -> if CPU is offline + * negative errno values in error case + */ +int sysfs_is_cpu_online(unsigned int cpu) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numread; + unsigned long long value; + char linebuf[MAX_LINE_LEN]; + char *endp; + struct stat statbuf; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u", cpu); + + if (stat(path, &statbuf) != 0) + return 0; + + /* + * kernel without CONFIG_HOTPLUG_CPU + * -> cpuX directory exists, but not cpuX/online file + */ + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/online", cpu); + if (stat(path, &statbuf) != 0) + return 1; + + fd = open(path, O_RDONLY); + if (fd == -1) + return -errno; + + numread = read(fd, linebuf, MAX_LINE_LEN - 1); + if (numread < 1) { + close(fd); + return -EIO; + } + linebuf[numread] = '\0'; + close(fd); + + value = strtoull(linebuf, &endp, 0); + if (value > 1) + return -EINVAL; + + return value; +} + +/* CPUidle idlestate specific /sys/devices/system/cpu/cpuX/cpuidle/ access */ + + +/* CPUidle idlestate specific /sys/devices/system/cpu/cpuX/cpuidle/ access */ + +/* + * helper function to check whether a file under "../cpuX/cpuidle/stateX/" dir + * exists. + * For example the functionality to disable c-states was introduced in later + * kernel versions, this function can be used to explicitly check for this + * feature. + * + * returns 1 if the file exists, 0 otherwise. + */ +unsigned int sysfs_idlestate_file_exists(unsigned int cpu, + unsigned int idlestate, + const char *fname) +{ + char path[SYSFS_PATH_MAX]; + struct stat statbuf; + + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", + cpu, idlestate, fname); + if (stat(path, &statbuf) != 0) + return 0; + return 1; +} + +/* + * helper function to read file from /sys into given buffer + * fname is a relative path under "cpuX/cpuidle/stateX/" dir + * cstates starting with 0, C0 is not counted as cstate. + * This means if you want C1 info, pass 0 as idlestate param + */ +unsigned int sysfs_idlestate_read_file(unsigned int cpu, unsigned int idlestate, + const char *fname, char *buf, size_t buflen) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numread; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", + cpu, idlestate, fname); + + fd = open(path, O_RDONLY); + if (fd == -1) + return 0; + + numread = read(fd, buf, buflen - 1); + if (numread < 1) { + close(fd); + return 0; + } + + buf[numread] = '\0'; + close(fd); + + return (unsigned int) numread; +} + +/* + * helper function to write a new value to a /sys file + * fname is a relative path under "../cpuX/cpuidle/cstateY/" dir + * + * Returns the number of bytes written or 0 on error + */ +static +unsigned int sysfs_idlestate_write_file(unsigned int cpu, + unsigned int idlestate, + const char *fname, + const char *value, size_t len) +{ + char path[SYSFS_PATH_MAX]; + int fd; + ssize_t numwrite; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpu%u/cpuidle/state%u/%s", + cpu, idlestate, fname); + + fd = open(path, O_WRONLY); + if (fd == -1) + return 0; + + numwrite = write(fd, value, len); + if (numwrite < 1) { + close(fd); + return 0; + } + + close(fd); + + return (unsigned int) numwrite; +} + +/* read access to files which contain one numeric value */ + +enum idlestate_value { + IDLESTATE_USAGE, + IDLESTATE_POWER, + IDLESTATE_LATENCY, + IDLESTATE_TIME, + IDLESTATE_DISABLE, + MAX_IDLESTATE_VALUE_FILES +}; + +static const char *idlestate_value_files[MAX_IDLESTATE_VALUE_FILES] = { + [IDLESTATE_USAGE] = "usage", + [IDLESTATE_POWER] = "power", + [IDLESTATE_LATENCY] = "latency", + [IDLESTATE_TIME] = "time", + [IDLESTATE_DISABLE] = "disable", +}; + +static unsigned long long sysfs_idlestate_get_one_value(unsigned int cpu, + unsigned int idlestate, + enum idlestate_value which) +{ + unsigned long long value; + unsigned int len; + char linebuf[MAX_LINE_LEN]; + char *endp; + + if (which >= MAX_IDLESTATE_VALUE_FILES) + return 0; + + len = sysfs_idlestate_read_file(cpu, idlestate, + idlestate_value_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return 0; + + value = strtoull(linebuf, &endp, 0); + + if (endp == linebuf || errno == ERANGE) + return 0; + + return value; +} + +/* read access to files which contain one string */ + +enum idlestate_string { + IDLESTATE_DESC, + IDLESTATE_NAME, + MAX_IDLESTATE_STRING_FILES +}; + +static const char *idlestate_string_files[MAX_IDLESTATE_STRING_FILES] = { + [IDLESTATE_DESC] = "desc", + [IDLESTATE_NAME] = "name", +}; + + +static char *sysfs_idlestate_get_one_string(unsigned int cpu, + unsigned int idlestate, + enum idlestate_string which) +{ + char linebuf[MAX_LINE_LEN]; + char *result; + unsigned int len; + + if (which >= MAX_IDLESTATE_STRING_FILES) + return NULL; + + len = sysfs_idlestate_read_file(cpu, idlestate, + idlestate_string_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return NULL; + + result = strdup(linebuf); + if (result == NULL) + return NULL; + + if (result[strlen(result) - 1] == '\n') + result[strlen(result) - 1] = '\0'; + + return result; +} + +/* + * Returns: + * 1 if disabled + * 0 if enabled + * -1 if idlestate is not available + * -2 if disabling is not supported by the kernel + */ +int sysfs_is_idlestate_disabled(unsigned int cpu, + unsigned int idlestate) +{ + if (sysfs_get_idlestate_count(cpu) <= idlestate) + return -1; + + if (!sysfs_idlestate_file_exists(cpu, idlestate, + idlestate_value_files[IDLESTATE_DISABLE])) + return -2; + return sysfs_idlestate_get_one_value(cpu, idlestate, IDLESTATE_DISABLE); +} + +/* + * Pass 1 as last argument to disable or 0 to enable the state + * Returns: + * 0 on success + * negative values on error, for example: + * -1 if idlestate is not available + * -2 if disabling is not supported by the kernel + * -3 No write access to disable/enable C-states + */ +int sysfs_idlestate_disable(unsigned int cpu, + unsigned int idlestate, + unsigned int disable) +{ + char value[SYSFS_PATH_MAX]; + int bytes_written; + + if (sysfs_get_idlestate_count(cpu) <= idlestate) + return -1; + + if (!sysfs_idlestate_file_exists(cpu, idlestate, + idlestate_value_files[IDLESTATE_DISABLE])) + return -2; + + snprintf(value, SYSFS_PATH_MAX, "%u", disable); + + bytes_written = sysfs_idlestate_write_file(cpu, idlestate, "disable", + value, sizeof(disable)); + if (bytes_written) + return 0; + return -3; +} + +unsigned long sysfs_get_idlestate_latency(unsigned int cpu, + unsigned int idlestate) +{ + return sysfs_idlestate_get_one_value(cpu, idlestate, IDLESTATE_LATENCY); +} + +unsigned long sysfs_get_idlestate_usage(unsigned int cpu, + unsigned int idlestate) +{ + return sysfs_idlestate_get_one_value(cpu, idlestate, IDLESTATE_USAGE); +} + +unsigned long long sysfs_get_idlestate_time(unsigned int cpu, + unsigned int idlestate) +{ + return sysfs_idlestate_get_one_value(cpu, idlestate, IDLESTATE_TIME); +} + +char *sysfs_get_idlestate_name(unsigned int cpu, unsigned int idlestate) +{ + return sysfs_idlestate_get_one_string(cpu, idlestate, IDLESTATE_NAME); +} + +char *sysfs_get_idlestate_desc(unsigned int cpu, unsigned int idlestate) +{ + return sysfs_idlestate_get_one_string(cpu, idlestate, IDLESTATE_DESC); +} + +/* + * Returns number of supported C-states of CPU core cpu + * Negativ in error case + * Zero if cpuidle does not export any C-states + */ +unsigned int sysfs_get_idlestate_count(unsigned int cpu) +{ + char file[SYSFS_PATH_MAX]; + struct stat statbuf; + int idlestates = 1; + + + snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpuidle"); + if (stat(file, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) + return 0; + + snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU "cpu%u/cpuidle/state0", cpu); + if (stat(file, &statbuf) != 0 || !S_ISDIR(statbuf.st_mode)) + return 0; + + while (stat(file, &statbuf) == 0 && S_ISDIR(statbuf.st_mode)) { + snprintf(file, SYSFS_PATH_MAX, PATH_TO_CPU + "cpu%u/cpuidle/state%d", cpu, idlestates); + idlestates++; + } + idlestates--; + return idlestates; +} + +/* CPUidle general /sys/devices/system/cpu/cpuidle/ sysfs access ********/ + +/* + * helper function to read file from /sys into given buffer + * fname is a relative path under "cpu/cpuidle/" dir + */ +static unsigned int sysfs_cpuidle_read_file(const char *fname, char *buf, + size_t buflen) +{ + char path[SYSFS_PATH_MAX]; + + snprintf(path, sizeof(path), PATH_TO_CPU "cpuidle/%s", fname); + + return sysfs_read_file(path, buf, buflen); +} + + + +/* read access to files which contain one string */ + +enum cpuidle_string { + CPUIDLE_GOVERNOR, + CPUIDLE_GOVERNOR_RO, + CPUIDLE_DRIVER, + MAX_CPUIDLE_STRING_FILES +}; + +static const char *cpuidle_string_files[MAX_CPUIDLE_STRING_FILES] = { + [CPUIDLE_GOVERNOR] = "current_governor", + [CPUIDLE_GOVERNOR_RO] = "current_governor_ro", + [CPUIDLE_DRIVER] = "current_driver", +}; + + +static char *sysfs_cpuidle_get_one_string(enum cpuidle_string which) +{ + char linebuf[MAX_LINE_LEN]; + char *result; + unsigned int len; + + if (which >= MAX_CPUIDLE_STRING_FILES) + return NULL; + + len = sysfs_cpuidle_read_file(cpuidle_string_files[which], + linebuf, sizeof(linebuf)); + if (len == 0) + return NULL; + + result = strdup(linebuf); + if (result == NULL) + return NULL; + + if (result[strlen(result) - 1] == '\n') + result[strlen(result) - 1] = '\0'; + + return result; +} + +char *sysfs_get_cpuidle_governor(void) +{ + char *tmp = sysfs_cpuidle_get_one_string(CPUIDLE_GOVERNOR_RO); + if (!tmp) + return sysfs_cpuidle_get_one_string(CPUIDLE_GOVERNOR); + else + return tmp; +} + +char *sysfs_get_cpuidle_driver(void) +{ + return sysfs_cpuidle_get_one_string(CPUIDLE_DRIVER); +} +/* CPUidle idlestate specific /sys/devices/system/cpu/cpuX/cpuidle/ access */ + +/* + * Get sched_mc or sched_smt settings + * Pass "mc" or "smt" as argument + * + * Returns negative value on failure + */ +int sysfs_get_sched(const char *smt_mc) +{ + return -ENODEV; +} + +/* + * Get sched_mc or sched_smt settings + * Pass "mc" or "smt" as argument + * + * Returns negative value on failure + */ +int sysfs_set_sched(const char *smt_mc, int val) +{ + return -ENODEV; +} diff --git a/tools/power/cpupower/utils/helpers/sysfs.h b/tools/power/cpupower/utils/helpers/sysfs.h new file mode 100644 index 000000000..0f0b9ad97 --- /dev/null +++ b/tools/power/cpupower/utils/helpers/sysfs.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __CPUPOWER_HELPERS_SYSFS_H__ +#define __CPUPOWER_HELPERS_SYSFS_H__ + +#define PATH_TO_CPU "/sys/devices/system/cpu/" +#define MAX_LINE_LEN 255 +#define SYSFS_PATH_MAX 255 + +extern unsigned int sysfs_read_file(const char *path, char *buf, size_t buflen); + +extern unsigned int sysfs_idlestate_file_exists(unsigned int cpu, + unsigned int idlestate, + const char *fname); + +extern int sysfs_is_cpu_online(unsigned int cpu); + +extern int sysfs_is_idlestate_disabled(unsigned int cpu, + unsigned int idlestate); +extern int sysfs_idlestate_disable(unsigned int cpu, unsigned int idlestate, + unsigned int disable); +extern unsigned long sysfs_get_idlestate_latency(unsigned int cpu, + unsigned int idlestate); +extern unsigned long sysfs_get_idlestate_usage(unsigned int cpu, + unsigned int idlestate); +extern unsigned long long sysfs_get_idlestate_time(unsigned int cpu, + unsigned int idlestate); +extern char *sysfs_get_idlestate_name(unsigned int cpu, + unsigned int idlestate); +extern char *sysfs_get_idlestate_desc(unsigned int cpu, + unsigned int idlestate); +extern unsigned int sysfs_get_idlestate_count(unsigned int cpu); + +extern char *sysfs_get_cpuidle_governor(void); +extern char *sysfs_get_cpuidle_driver(void); + +extern int sysfs_get_sched(const char *smt_mc); +extern int sysfs_set_sched(const char *smt_mc, int val); + +#endif /* __CPUPOWER_HELPERS_SYSFS_H__ */ diff --git a/tools/power/cpupower/utils/helpers/topology.c b/tools/power/cpupower/utils/helpers/topology.c new file mode 100644 index 000000000..a1a6c6041 --- /dev/null +++ b/tools/power/cpupower/utils/helpers/topology.c @@ -0,0 +1,22 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * ToDo: Needs to be done more properly for AMD/Intel specifics + */ + +/* Helper struct for qsort, must be in sync with cpupower_topology.cpu_info */ +/* Be careful: Need to pass unsigned to the sort, so that offlined cores are + in the end, but double check for -1 for offlined cpus at other places */ + +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <errno.h> +#include <fcntl.h> + +#include <cpuidle.h> + +/* CPU topology/hierarchy parsing ******************/ + diff --git a/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c b/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c new file mode 100644 index 000000000..c097a3748 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/amd_fam14h_idle.c @@ -0,0 +1,335 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * PCI initialization based on example code from: + * Andreas Herrmann <andreas.herrmann3@amd.com> + */ + +#if defined(__i386__) || defined(__x86_64__) + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <time.h> +#include <string.h> + +#include <pci/pci.h> + +#include "idle_monitor/cpupower-monitor.h" +#include "helpers/helpers.h" + +#define PCI_NON_PC0_OFFSET 0xb0 +#define PCI_PC1_OFFSET 0xb4 +#define PCI_PC6_OFFSET 0xb8 + +#define PCI_MONITOR_ENABLE_REG 0xe0 + +#define PCI_NON_PC0_ENABLE_BIT 0 +#define PCI_PC1_ENABLE_BIT 1 +#define PCI_PC6_ENABLE_BIT 2 + +#define PCI_NBP1_STAT_OFFSET 0x98 +#define PCI_NBP1_ACTIVE_BIT 2 +#define PCI_NBP1_ENTERED_BIT 1 + +#define PCI_NBP1_CAP_OFFSET 0x90 +#define PCI_NBP1_CAPABLE_BIT 31 + +#define OVERFLOW_MS 343597 /* 32 bit register filled at 12500 HZ + (1 tick per 80ns) */ + +enum amd_fam14h_states {NON_PC0 = 0, PC1, PC6, NBP1, + AMD_FAM14H_STATE_NUM}; + +static int fam14h_get_count_percent(unsigned int self_id, double *percent, + unsigned int cpu); +static int fam14h_nbp1_count(unsigned int id, unsigned long long *count, + unsigned int cpu); + +static cstate_t amd_fam14h_cstates[AMD_FAM14H_STATE_NUM] = { + { + .name = "!PC0", + .desc = N_("Package in sleep state (PC1 or deeper)"), + .id = NON_PC0, + .range = RANGE_PACKAGE, + .get_count_percent = fam14h_get_count_percent, + }, + { + .name = "PC1", + .desc = N_("Processor Package C1"), + .id = PC1, + .range = RANGE_PACKAGE, + .get_count_percent = fam14h_get_count_percent, + }, + { + .name = "PC6", + .desc = N_("Processor Package C6"), + .id = PC6, + .range = RANGE_PACKAGE, + .get_count_percent = fam14h_get_count_percent, + }, + { + .name = "NBP1", + .desc = N_("North Bridge P1 boolean counter (returns 0 or 1)"), + .id = NBP1, + .range = RANGE_PACKAGE, + .get_count = fam14h_nbp1_count, + }, +}; + +static struct pci_access *pci_acc; +static struct pci_dev *amd_fam14h_pci_dev; +static int nbp1_entered; + +static struct timespec start_time; +static unsigned long long timediff; + +#ifdef DEBUG +struct timespec dbg_time; +long dbg_timediff; +#endif + +static unsigned long long *previous_count[AMD_FAM14H_STATE_NUM]; +static unsigned long long *current_count[AMD_FAM14H_STATE_NUM]; + +static int amd_fam14h_get_pci_info(struct cstate *state, + unsigned int *pci_offset, + unsigned int *enable_bit, + unsigned int cpu) +{ + switch (state->id) { + case NON_PC0: + *enable_bit = PCI_NON_PC0_ENABLE_BIT; + *pci_offset = PCI_NON_PC0_OFFSET; + break; + case PC1: + *enable_bit = PCI_PC1_ENABLE_BIT; + *pci_offset = PCI_PC1_OFFSET; + break; + case PC6: + *enable_bit = PCI_PC6_ENABLE_BIT; + *pci_offset = PCI_PC6_OFFSET; + break; + case NBP1: + *enable_bit = PCI_NBP1_ENTERED_BIT; + *pci_offset = PCI_NBP1_STAT_OFFSET; + break; + default: + return -1; + }; + return 0; +} + +static int amd_fam14h_init(cstate_t *state, unsigned int cpu) +{ + int enable_bit, pci_offset, ret; + uint32_t val; + + ret = amd_fam14h_get_pci_info(state, &pci_offset, &enable_bit, cpu); + if (ret) + return ret; + + /* NBP1 needs extra treating -> write 1 to D18F6x98 bit 1 for init */ + if (state->id == NBP1) { + val = pci_read_long(amd_fam14h_pci_dev, pci_offset); + val |= 1 << enable_bit; + val = pci_write_long(amd_fam14h_pci_dev, pci_offset, val); + return ret; + } + + /* Enable monitor */ + val = pci_read_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG); + dprint("Init %s: read at offset: 0x%x val: %u\n", state->name, + PCI_MONITOR_ENABLE_REG, (unsigned int) val); + val |= 1 << enable_bit; + pci_write_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG, val); + + dprint("Init %s: offset: 0x%x enable_bit: %d - val: %u (%u)\n", + state->name, PCI_MONITOR_ENABLE_REG, enable_bit, + (unsigned int) val, cpu); + + /* Set counter to zero */ + pci_write_long(amd_fam14h_pci_dev, pci_offset, 0); + previous_count[state->id][cpu] = 0; + + return 0; +} + +static int amd_fam14h_disable(cstate_t *state, unsigned int cpu) +{ + int enable_bit, pci_offset, ret; + uint32_t val; + + ret = amd_fam14h_get_pci_info(state, &pci_offset, &enable_bit, cpu); + if (ret) + return ret; + + val = pci_read_long(amd_fam14h_pci_dev, pci_offset); + dprint("%s: offset: 0x%x %u\n", state->name, pci_offset, val); + if (state->id == NBP1) { + /* was the bit whether NBP1 got entered set? */ + nbp1_entered = (val & (1 << PCI_NBP1_ACTIVE_BIT)) | + (val & (1 << PCI_NBP1_ENTERED_BIT)); + + dprint("NBP1 was %sentered - 0x%x - enable_bit: " + "%d - pci_offset: 0x%x\n", + nbp1_entered ? "" : "not ", + val, enable_bit, pci_offset); + return ret; + } + current_count[state->id][cpu] = val; + + dprint("%s: Current - %llu (%u)\n", state->name, + current_count[state->id][cpu], cpu); + dprint("%s: Previous - %llu (%u)\n", state->name, + previous_count[state->id][cpu], cpu); + + val = pci_read_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG); + val &= ~(1 << enable_bit); + pci_write_long(amd_fam14h_pci_dev, PCI_MONITOR_ENABLE_REG, val); + + return 0; +} + +static int fam14h_nbp1_count(unsigned int id, unsigned long long *count, + unsigned int cpu) +{ + if (id == NBP1) { + if (nbp1_entered) + *count = 1; + else + *count = 0; + return 0; + } + return -1; +} +static int fam14h_get_count_percent(unsigned int id, double *percent, + unsigned int cpu) +{ + unsigned long diff; + + if (id >= AMD_FAM14H_STATE_NUM) + return -1; + /* residency count in 80ns -> divide through 12.5 to get us residency */ + diff = current_count[id][cpu] - previous_count[id][cpu]; + + if (timediff == 0) + *percent = 0.0; + else + *percent = 100.0 * diff / timediff / 12.5; + + dprint("Timediff: %llu - res~: %lu us - percent: %.2f %%\n", + timediff, diff * 10 / 125, *percent); + + return 0; +} + +static int amd_fam14h_start(void) +{ + int num, cpu; + clock_gettime(CLOCK_REALTIME, &start_time); + for (num = 0; num < AMD_FAM14H_STATE_NUM; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) + amd_fam14h_init(&amd_fam14h_cstates[num], cpu); + } +#ifdef DEBUG + clock_gettime(CLOCK_REALTIME, &dbg_time); + dbg_timediff = timespec_diff_us(start_time, dbg_time); + dprint("Enabling counters took: %lu us\n", + dbg_timediff); +#endif + return 0; +} + +static int amd_fam14h_stop(void) +{ + int num, cpu; + struct timespec end_time; + + clock_gettime(CLOCK_REALTIME, &end_time); + + for (num = 0; num < AMD_FAM14H_STATE_NUM; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) + amd_fam14h_disable(&amd_fam14h_cstates[num], cpu); + } +#ifdef DEBUG + clock_gettime(CLOCK_REALTIME, &dbg_time); + dbg_timediff = timespec_diff_us(end_time, dbg_time); + dprint("Disabling counters took: %lu ns\n", dbg_timediff); +#endif + timediff = timespec_diff_us(start_time, end_time); + if (timediff / 1000 > OVERFLOW_MS) + print_overflow_err((unsigned int)timediff / 1000000, + OVERFLOW_MS / 1000); + + return 0; +} + +static int is_nbp1_capable(void) +{ + uint32_t val; + val = pci_read_long(amd_fam14h_pci_dev, PCI_NBP1_CAP_OFFSET); + return val & (1 << 31); +} + +struct cpuidle_monitor *amd_fam14h_register(void) +{ + int num; + + if (cpupower_cpu_info.vendor != X86_VENDOR_AMD) + return NULL; + + if (cpupower_cpu_info.family == 0x14) + strncpy(amd_fam14h_monitor.name, "Fam_14h", + MONITOR_NAME_LEN - 1); + else if (cpupower_cpu_info.family == 0x12) + strncpy(amd_fam14h_monitor.name, "Fam_12h", + MONITOR_NAME_LEN - 1); + else + return NULL; + + /* We do not alloc for nbp1 machine wide counter */ + for (num = 0; num < AMD_FAM14H_STATE_NUM - 1; num++) { + previous_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + current_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + } + + /* We need PCI device: Slot 18, Func 6, compare with BKDG + for fam 12h/14h */ + amd_fam14h_pci_dev = pci_slot_func_init(&pci_acc, 0x18, 6); + if (amd_fam14h_pci_dev == NULL || pci_acc == NULL) + return NULL; + + if (!is_nbp1_capable()) + amd_fam14h_monitor.hw_states_num = AMD_FAM14H_STATE_NUM - 1; + + amd_fam14h_monitor.name_len = strlen(amd_fam14h_monitor.name); + return &amd_fam14h_monitor; +} + +static void amd_fam14h_unregister(void) +{ + int num; + for (num = 0; num < AMD_FAM14H_STATE_NUM - 1; num++) { + free(previous_count[num]); + free(current_count[num]); + } + pci_cleanup(pci_acc); +} + +struct cpuidle_monitor amd_fam14h_monitor = { + .name = "", + .hw_states = amd_fam14h_cstates, + .hw_states_num = AMD_FAM14H_STATE_NUM, + .start = amd_fam14h_start, + .stop = amd_fam14h_stop, + .do_register = amd_fam14h_register, + .unregister = amd_fam14h_unregister, + .needs_root = 1, + .overflow_s = OVERFLOW_MS / 1000, +}; +#endif /* #if defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c new file mode 100644 index 000000000..85a8f0cc0 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/cpuidle_sysfs.c @@ -0,0 +1,214 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc + * + * Licensed under the terms of the GNU GPL License version 2. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <string.h> +#include <limits.h> +#include <cpuidle.h> + +#include "helpers/helpers.h" +#include "idle_monitor/cpupower-monitor.h" + +#define CPUIDLE_STATES_MAX 10 +static cstate_t cpuidle_cstates[CPUIDLE_STATES_MAX]; +struct cpuidle_monitor cpuidle_sysfs_monitor; + +static unsigned long long **previous_count; +static unsigned long long **current_count; +static struct timespec start_time; +static unsigned long long timediff; + +static int cpuidle_get_count_percent(unsigned int id, double *percent, + unsigned int cpu) +{ + unsigned long long statediff = current_count[cpu][id] + - previous_count[cpu][id]; + dprint("%s: - diff: %llu - percent: %f (%u)\n", + cpuidle_cstates[id].name, timediff, *percent, cpu); + + if (timediff == 0) + *percent = 0.0; + else + *percent = ((100.0 * statediff) / timediff); + + dprint("%s: - timediff: %llu - statediff: %llu - percent: %f (%u)\n", + cpuidle_cstates[id].name, timediff, statediff, *percent, cpu); + + return 0; +} + +static int cpuidle_start(void) +{ + int cpu, state; + clock_gettime(CLOCK_REALTIME, &start_time); + for (cpu = 0; cpu < cpu_count; cpu++) { + for (state = 0; state < cpuidle_sysfs_monitor.hw_states_num; + state++) { + previous_count[cpu][state] = + cpuidle_state_time(cpu, state); + dprint("CPU %d - State: %d - Val: %llu\n", + cpu, state, previous_count[cpu][state]); + } + }; + return 0; +} + +static int cpuidle_stop(void) +{ + int cpu, state; + struct timespec end_time; + clock_gettime(CLOCK_REALTIME, &end_time); + timediff = timespec_diff_us(start_time, end_time); + + for (cpu = 0; cpu < cpu_count; cpu++) { + for (state = 0; state < cpuidle_sysfs_monitor.hw_states_num; + state++) { + current_count[cpu][state] = + cpuidle_state_time(cpu, state); + dprint("CPU %d - State: %d - Val: %llu\n", + cpu, state, previous_count[cpu][state]); + } + }; + return 0; +} + +void fix_up_intel_idle_driver_name(char *tmp, int num) +{ + /* fix up cpuidle name for intel idle driver */ + if (!strncmp(tmp, "NHM-", 4)) { + switch (num) { + case 1: + strcpy(tmp, "C1"); + break; + case 2: + strcpy(tmp, "C3"); + break; + case 3: + strcpy(tmp, "C6"); + break; + } + } else if (!strncmp(tmp, "SNB-", 4)) { + switch (num) { + case 1: + strcpy(tmp, "C1"); + break; + case 2: + strcpy(tmp, "C3"); + break; + case 3: + strcpy(tmp, "C6"); + break; + case 4: + strcpy(tmp, "C7"); + break; + } + } else if (!strncmp(tmp, "ATM-", 4)) { + switch (num) { + case 1: + strcpy(tmp, "C1"); + break; + case 2: + strcpy(tmp, "C2"); + break; + case 3: + strcpy(tmp, "C4"); + break; + case 4: + strcpy(tmp, "C6"); + break; + } + } +} + +#ifdef __powerpc__ +void map_power_idle_state_name(char *tmp) +{ + if (!strncmp(tmp, "stop0_lite", CSTATE_NAME_LEN)) + strcpy(tmp, "stop0L"); + else if (!strncmp(tmp, "stop1_lite", CSTATE_NAME_LEN)) + strcpy(tmp, "stop1L"); + else if (!strncmp(tmp, "stop2_lite", CSTATE_NAME_LEN)) + strcpy(tmp, "stop2L"); +} +#else +void map_power_idle_state_name(char *tmp) { } +#endif + +static struct cpuidle_monitor *cpuidle_register(void) +{ + int num; + char *tmp; + int this_cpu; + + this_cpu = sched_getcpu(); + + /* Assume idle state count is the same for all CPUs */ + cpuidle_sysfs_monitor.hw_states_num = cpuidle_state_count(this_cpu); + + if (cpuidle_sysfs_monitor.hw_states_num <= 0) + return NULL; + + for (num = 0; num < cpuidle_sysfs_monitor.hw_states_num; num++) { + tmp = cpuidle_state_name(this_cpu, num); + if (tmp == NULL) + continue; + + map_power_idle_state_name(tmp); + fix_up_intel_idle_driver_name(tmp, num); + strncpy(cpuidle_cstates[num].name, tmp, CSTATE_NAME_LEN - 1); + free(tmp); + + tmp = cpuidle_state_desc(this_cpu, num); + if (tmp == NULL) + continue; + strncpy(cpuidle_cstates[num].desc, tmp, CSTATE_DESC_LEN - 1); + free(tmp); + + cpuidle_cstates[num].range = RANGE_THREAD; + cpuidle_cstates[num].id = num; + cpuidle_cstates[num].get_count_percent = + cpuidle_get_count_percent; + }; + + /* Free this at program termination */ + previous_count = malloc(sizeof(long long *) * cpu_count); + current_count = malloc(sizeof(long long *) * cpu_count); + for (num = 0; num < cpu_count; num++) { + previous_count[num] = malloc(sizeof(long long) * + cpuidle_sysfs_monitor.hw_states_num); + current_count[num] = malloc(sizeof(long long) * + cpuidle_sysfs_monitor.hw_states_num); + } + + cpuidle_sysfs_monitor.name_len = strlen(cpuidle_sysfs_monitor.name); + return &cpuidle_sysfs_monitor; +} + +void cpuidle_unregister(void) +{ + int num; + + for (num = 0; num < cpu_count; num++) { + free(previous_count[num]); + free(current_count[num]); + } + free(previous_count); + free(current_count); +} + +struct cpuidle_monitor cpuidle_sysfs_monitor = { + .name = "Idle_Stats", + .hw_states = cpuidle_cstates, + .start = cpuidle_start, + .stop = cpuidle_stop, + .do_register = cpuidle_register, + .unregister = cpuidle_unregister, + .needs_root = 0, + .overflow_s = UINT_MAX, +}; diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c new file mode 100644 index 000000000..4a27c55d5 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.c @@ -0,0 +1,469 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Output format inspired by Len Brown's <lenb@kernel.org> turbostat tool. + * + */ + + +#include <stdio.h> +#include <unistd.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include <signal.h> +#include <sys/types.h> +#include <sys/wait.h> +#include <libgen.h> + +#include "idle_monitor/cpupower-monitor.h" +#include "idle_monitor/idle_monitors.h" +#include "helpers/helpers.h" + +/* Define pointers to all monitors. */ +#define DEF(x) & x ## _monitor , +struct cpuidle_monitor *all_monitors[] = { +#include "idle_monitors.def" +0 +}; + +int cpu_count; + +static struct cpuidle_monitor *monitors[MONITORS_MAX]; +static unsigned int avail_monitors; + +static char *progname; + +enum operation_mode_e { list = 1, show, show_all }; +static int mode; +static int interval = 1; +static char *show_monitors_param; +static struct cpupower_topology cpu_top; +static unsigned int wake_cpus; + +/* ToDo: Document this in the manpage */ +static char range_abbr[RANGE_MAX] = { 'T', 'C', 'P', 'M', }; + +static void print_wrong_arg_exit(void) +{ + printf(_("invalid or unknown argument\n")); + exit(EXIT_FAILURE); +} + +long long timespec_diff_us(struct timespec start, struct timespec end) +{ + struct timespec temp; + if ((end.tv_nsec - start.tv_nsec) < 0) { + temp.tv_sec = end.tv_sec - start.tv_sec - 1; + temp.tv_nsec = 1000000000 + end.tv_nsec - start.tv_nsec; + } else { + temp.tv_sec = end.tv_sec - start.tv_sec; + temp.tv_nsec = end.tv_nsec - start.tv_nsec; + } + return (temp.tv_sec * 1000000) + (temp.tv_nsec / 1000); +} + +void print_n_spaces(int n) +{ + int x; + for (x = 0; x < n; x++) + printf(" "); +} + +/*s is filled with left and right spaces + *to make its length atleast n+1 + */ +int fill_string_with_spaces(char *s, int n) +{ + char *temp; + int len = strlen(s); + + if (len >= n) + return -1; + + temp = malloc(sizeof(char) * (n+1)); + for (; len < n; len++) + s[len] = ' '; + s[len] = '\0'; + snprintf(temp, n+1, " %s", s); + strcpy(s, temp); + free(temp); + return 0; +} + +#define MAX_COL_WIDTH 6 +void print_header(int topology_depth) +{ + int unsigned mon; + int state, need_len; + cstate_t s; + char buf[128] = ""; + + fill_string_with_spaces(buf, topology_depth * 5 - 1); + printf("%s|", buf); + + for (mon = 0; mon < avail_monitors; mon++) { + need_len = monitors[mon]->hw_states_num * (MAX_COL_WIDTH + 1) + - 1; + if (mon != 0) + printf("||"); + sprintf(buf, "%s", monitors[mon]->name); + fill_string_with_spaces(buf, need_len); + printf("%s", buf); + } + printf("\n"); + + if (topology_depth > 2) + printf(" PKG|"); + if (topology_depth > 1) + printf("CORE|"); + if (topology_depth > 0) + printf(" CPU|"); + + for (mon = 0; mon < avail_monitors; mon++) { + if (mon != 0) + printf("||"); + for (state = 0; state < monitors[mon]->hw_states_num; state++) { + if (state != 0) + printf("|"); + s = monitors[mon]->hw_states[state]; + sprintf(buf, "%s", s.name); + fill_string_with_spaces(buf, MAX_COL_WIDTH); + printf("%s", buf); + } + printf(" "); + } + printf("\n"); +} + + +void print_results(int topology_depth, int cpu) +{ + unsigned int mon; + int state, ret; + double percent; + unsigned long long result; + cstate_t s; + + /* Be careful CPUs may got resorted for pkg value do not just use cpu */ + if (!bitmask_isbitset(cpus_chosen, cpu_top.core_info[cpu].cpu)) + return; + if (!cpu_top.core_info[cpu].is_online && + cpu_top.core_info[cpu].pkg == -1) + return; + + if (topology_depth > 2) + printf("%4d|", cpu_top.core_info[cpu].pkg); + if (topology_depth > 1) + printf("%4d|", cpu_top.core_info[cpu].core); + if (topology_depth > 0) + printf("%4d|", cpu_top.core_info[cpu].cpu); + + for (mon = 0; mon < avail_monitors; mon++) { + if (mon != 0) + printf("||"); + + for (state = 0; state < monitors[mon]->hw_states_num; state++) { + if (state != 0) + printf("|"); + + s = monitors[mon]->hw_states[state]; + + if (s.get_count_percent) { + ret = s.get_count_percent(s.id, &percent, + cpu_top.core_info[cpu].cpu); + if (ret) + printf("******"); + else if (percent >= 100.0) + printf("%6.1f", percent); + else + printf("%6.2f", percent); + } else if (s.get_count) { + ret = s.get_count(s.id, &result, + cpu_top.core_info[cpu].cpu); + if (ret) + printf("******"); + else + printf("%6llu", result); + } else { + printf(_("Monitor %s, Counter %s has no count " + "function. Implementation error\n"), + monitors[mon]->name, s.name); + exit(EXIT_FAILURE); + } + } + } + /* + * The monitor could still provide useful data, for example + * AMD HW counters partly sit in PCI config space. + * It's up to the monitor plug-in to check .is_online, this one + * is just for additional info. + */ + if (!cpu_top.core_info[cpu].is_online && + cpu_top.core_info[cpu].pkg != -1) { + printf(_(" *is offline\n")); + return; + } else + printf("\n"); +} + + +/* param: string passed by -m param (The list of monitors to show) + * + * Monitors must have been registered already, matching monitors + * are picked out and available monitors array is overridden + * with matching ones + * + * Monitors get sorted in the same order the user passes them +*/ + +static void parse_monitor_param(char *param) +{ + unsigned int num; + int mon, hits = 0; + char *tmp = param, *token; + struct cpuidle_monitor *tmp_mons[MONITORS_MAX]; + + + for (mon = 0; mon < MONITORS_MAX; mon++, tmp = NULL) { + token = strtok(tmp, ","); + if (token == NULL) + break; + if (strlen(token) >= MONITOR_NAME_LEN) { + printf(_("%s: max monitor name length" + " (%d) exceeded\n"), token, MONITOR_NAME_LEN); + continue; + } + + for (num = 0; num < avail_monitors; num++) { + if (!strcmp(monitors[num]->name, token)) { + dprint("Found requested monitor: %s\n", token); + tmp_mons[hits] = monitors[num]; + hits++; + } + } + } + if (hits == 0) { + printf(_("No matching monitor found in %s, " + "try -l option\n"), param); + exit(EXIT_FAILURE); + } + /* Override detected/registerd monitors array with requested one */ + memcpy(monitors, tmp_mons, + sizeof(struct cpuidle_monitor *) * MONITORS_MAX); + avail_monitors = hits; +} + +void list_monitors(void) +{ + unsigned int mon; + int state; + cstate_t s; + + for (mon = 0; mon < avail_monitors; mon++) { + printf(_("Monitor \"%s\" (%d states) - Might overflow after %u " + "s\n"), + monitors[mon]->name, monitors[mon]->hw_states_num, + monitors[mon]->overflow_s); + + for (state = 0; state < monitors[mon]->hw_states_num; state++) { + s = monitors[mon]->hw_states[state]; + /* + * ToDo show more state capabilities: + * percent, time (granlarity) + */ + printf("%s\t[%c] -> %s\n", s.name, range_abbr[s.range], + gettext(s.desc)); + } + } +} + +int fork_it(char **argv) +{ + int status; + unsigned int num; + unsigned long long timediff; + pid_t child_pid; + struct timespec start, end; + + child_pid = fork(); + clock_gettime(CLOCK_REALTIME, &start); + + for (num = 0; num < avail_monitors; num++) + monitors[num]->start(); + + if (!child_pid) { + /* child */ + execvp(argv[0], argv); + } else { + /* parent */ + if (child_pid == -1) { + perror("fork"); + exit(1); + } + + signal(SIGINT, SIG_IGN); + signal(SIGQUIT, SIG_IGN); + if (waitpid(child_pid, &status, 0) == -1) { + perror("wait"); + exit(1); + } + } + clock_gettime(CLOCK_REALTIME, &end); + for (num = 0; num < avail_monitors; num++) + monitors[num]->stop(); + + timediff = timespec_diff_us(start, end); + if (WIFEXITED(status)) + printf(_("%s took %.5f seconds and exited with status %d\n"), + argv[0], timediff / (1000.0 * 1000), + WEXITSTATUS(status)); + return 0; +} + +int do_interval_measure(int i) +{ + unsigned int num; + int cpu; + + if (wake_cpus) + for (cpu = 0; cpu < cpu_count; cpu++) + bind_cpu(cpu); + + for (num = 0; num < avail_monitors; num++) { + dprint("HW C-state residency monitor: %s - States: %d\n", + monitors[num]->name, monitors[num]->hw_states_num); + monitors[num]->start(); + } + + sleep(i); + + if (wake_cpus) + for (cpu = 0; cpu < cpu_count; cpu++) + bind_cpu(cpu); + + for (num = 0; num < avail_monitors; num++) + monitors[num]->stop(); + + + return 0; +} + +static void cmdline(int argc, char *argv[]) +{ + int opt; + progname = basename(argv[0]); + + while ((opt = getopt(argc, argv, "+lci:m:")) != -1) { + switch (opt) { + case 'l': + if (mode) + print_wrong_arg_exit(); + mode = list; + break; + case 'i': + /* only allow -i with -m or no option */ + if (mode && mode != show) + print_wrong_arg_exit(); + interval = atoi(optarg); + break; + case 'm': + if (mode) + print_wrong_arg_exit(); + mode = show; + show_monitors_param = optarg; + break; + case 'c': + wake_cpus = 1; + break; + default: + print_wrong_arg_exit(); + } + } + if (!mode) + mode = show_all; +} + +int cmd_monitor(int argc, char **argv) +{ + unsigned int num; + struct cpuidle_monitor *test_mon; + int cpu; + + cmdline(argc, argv); + cpu_count = get_cpu_topology(&cpu_top); + if (cpu_count < 0) { + printf(_("Cannot read number of available processors\n")); + return EXIT_FAILURE; + } + + if (!cpu_top.core_info[0].is_online) + printf("WARNING: at least one cpu is offline\n"); + + /* Default is: monitor all CPUs */ + if (bitmask_isallclear(cpus_chosen)) + bitmask_setall(cpus_chosen); + + dprint("System has up to %d CPU cores\n", cpu_count); + + for (num = 0; all_monitors[num]; num++) { + dprint("Try to register: %s\n", all_monitors[num]->name); + test_mon = all_monitors[num]->do_register(); + if (test_mon) { + if (test_mon->needs_root && !run_as_root) { + fprintf(stderr, _("Available monitor %s needs " + "root access\n"), test_mon->name); + continue; + } + monitors[avail_monitors] = test_mon; + dprint("%s registered\n", all_monitors[num]->name); + avail_monitors++; + } + } + + if (avail_monitors == 0) { + printf(_("No HW Cstate monitors found\n")); + return 1; + } + + if (mode == list) { + list_monitors(); + exit(EXIT_SUCCESS); + } + + if (mode == show) + parse_monitor_param(show_monitors_param); + + dprint("Packages: %d - Cores: %d - CPUs: %d\n", + cpu_top.pkgs, cpu_top.cores, cpu_count); + + /* + * if any params left, it must be a command to fork + */ + if (argc - optind) + fork_it(argv + optind); + else + do_interval_measure(interval); + + /* ToDo: Topology parsing needs fixing first to do + this more generically */ + if (cpu_top.pkgs > 1) + print_header(3); + else + print_header(1); + + for (cpu = 0; cpu < cpu_count; cpu++) { + if (cpu_top.pkgs > 1) + print_results(3, cpu); + else + print_results(1, cpu); + } + + for (num = 0; num < avail_monitors; num++) + monitors[num]->unregister(); + + cpu_topology_release(cpu_top); + return 0; +} diff --git a/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h new file mode 100644 index 000000000..06b3cd6de --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/cpupower-monitor.h @@ -0,0 +1,94 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + */ + +#ifndef __CPUIDLE_INFO_HW__ +#define __CPUIDLE_INFO_HW__ + +#include <stdarg.h> +#include <time.h> + +#include "idle_monitor/idle_monitors.h" + +#define MONITORS_MAX 20 +#define MONITOR_NAME_LEN 20 + +/* CSTATE_NAME_LEN is limited by header field width defined + * in cpupower-monitor.c. Header field width is defined to be + * sum of percent width and two spaces for padding. + */ +#ifdef __powerpc__ +#define CSTATE_NAME_LEN 7 +#else +#define CSTATE_NAME_LEN 5 +#endif +#define CSTATE_DESC_LEN 60 + +extern int cpu_count; + +/* Hard to define the right names ...: */ +enum power_range_e { + RANGE_THREAD, /* Lowest in topology hierarcy, AMD: core, Intel: thread + kernel sysfs: cpu */ + RANGE_CORE, /* AMD: unit, Intel: core, kernel_sysfs: core_id */ + RANGE_PACKAGE, /* Package, processor socket */ + RANGE_MACHINE, /* Machine, platform wide */ + RANGE_MAX }; + +typedef struct cstate { + int id; + enum power_range_e range; + char name[CSTATE_NAME_LEN]; + char desc[CSTATE_DESC_LEN]; + + /* either provide a percentage or a general count */ + int (*get_count_percent)(unsigned int self_id, double *percent, + unsigned int cpu); + int (*get_count)(unsigned int self_id, unsigned long long *count, + unsigned int cpu); +} cstate_t; + +struct cpuidle_monitor { + /* Name must not contain whitespaces */ + char name[MONITOR_NAME_LEN]; + int name_len; + int hw_states_num; + cstate_t *hw_states; + int (*start) (void); + int (*stop) (void); + struct cpuidle_monitor* (*do_register) (void); + void (*unregister)(void); + unsigned int overflow_s; + int needs_root; +}; + +extern long long timespec_diff_us(struct timespec start, struct timespec end); + +#define print_overflow_err(mes, ov) \ +{ \ + fprintf(stderr, gettext("Measure took %u seconds, but registers could " \ + "overflow at %u seconds, results " \ + "could be inaccurate\n"), mes, ov); \ +} + + +/* Taken over from x86info project sources -> return 0 on success */ +#include <sched.h> +#include <sys/types.h> +#include <unistd.h> +static inline int bind_cpu(int cpu) +{ + cpu_set_t set; + + if (sched_getaffinity(getpid(), sizeof(set), &set) == 0) { + CPU_ZERO(&set); + CPU_SET(cpu, &set); + return sched_setaffinity(getpid(), sizeof(set), &set); + } + return 1; +} + +#endif /* __CPUIDLE_INFO_HW__ */ diff --git a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c new file mode 100644 index 000000000..3e4ff4a1c --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c @@ -0,0 +1,195 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Based on SandyBridge monitor. Implements the new package C-states + * (PC8, PC9, PC10) coming with a specific Haswell (family 0x45) CPU. + */ + +#if defined(__i386__) || defined(__x86_64__) + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "helpers/helpers.h" +#include "idle_monitor/cpupower-monitor.h" + +#define MSR_PKG_C8_RESIDENCY 0x00000630 +#define MSR_PKG_C9_RESIDENCY 0x00000631 +#define MSR_PKG_C10_RESIDENCY 0x00000632 + +#define MSR_TSC 0x10 + +enum intel_hsw_ext_id { PC8 = 0, PC9, PC10, HSW_EXT_CSTATE_COUNT, + TSC = 0xFFFF }; + +static int hsw_ext_get_count_percent(unsigned int self_id, double *percent, + unsigned int cpu); + +static cstate_t hsw_ext_cstates[HSW_EXT_CSTATE_COUNT] = { + { + .name = "PC8", + .desc = N_("Processor Package C8"), + .id = PC8, + .range = RANGE_PACKAGE, + .get_count_percent = hsw_ext_get_count_percent, + }, + { + .name = "PC9", + .desc = N_("Processor Package C9"), + .id = PC9, + .range = RANGE_PACKAGE, + .get_count_percent = hsw_ext_get_count_percent, + }, + { + .name = "PC10", + .desc = N_("Processor Package C10"), + .id = PC10, + .range = RANGE_PACKAGE, + .get_count_percent = hsw_ext_get_count_percent, + }, +}; + +static unsigned long long tsc_at_measure_start; +static unsigned long long tsc_at_measure_end; +static unsigned long long *previous_count[HSW_EXT_CSTATE_COUNT]; +static unsigned long long *current_count[HSW_EXT_CSTATE_COUNT]; +/* valid flag for all CPUs. If a MSR read failed it will be zero */ +static int *is_valid; + +static int hsw_ext_get_count(enum intel_hsw_ext_id id, unsigned long long *val, + unsigned int cpu) +{ + int msr; + + switch (id) { + case PC8: + msr = MSR_PKG_C8_RESIDENCY; + break; + case PC9: + msr = MSR_PKG_C9_RESIDENCY; + break; + case PC10: + msr = MSR_PKG_C10_RESIDENCY; + break; + case TSC: + msr = MSR_TSC; + break; + default: + return -1; + }; + if (read_msr(cpu, msr, val)) + return -1; + return 0; +} + +static int hsw_ext_get_count_percent(unsigned int id, double *percent, + unsigned int cpu) +{ + *percent = 0.0; + + if (!is_valid[cpu]) + return -1; + + *percent = (100.0 * + (current_count[id][cpu] - previous_count[id][cpu])) / + (tsc_at_measure_end - tsc_at_measure_start); + + dprint("%s: previous: %llu - current: %llu - (%u)\n", + hsw_ext_cstates[id].name, previous_count[id][cpu], + current_count[id][cpu], cpu); + + dprint("%s: tsc_diff: %llu - count_diff: %llu - percent: %2.f (%u)\n", + hsw_ext_cstates[id].name, + (unsigned long long) tsc_at_measure_end - tsc_at_measure_start, + current_count[id][cpu] - previous_count[id][cpu], + *percent, cpu); + + return 0; +} + +static int hsw_ext_start(void) +{ + int num, cpu; + unsigned long long val; + + for (num = 0; num < HSW_EXT_CSTATE_COUNT; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) { + hsw_ext_get_count(num, &val, cpu); + previous_count[num][cpu] = val; + } + } + hsw_ext_get_count(TSC, &tsc_at_measure_start, base_cpu); + return 0; +} + +static int hsw_ext_stop(void) +{ + unsigned long long val; + int num, cpu; + + hsw_ext_get_count(TSC, &tsc_at_measure_end, base_cpu); + + for (num = 0; num < HSW_EXT_CSTATE_COUNT; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) { + is_valid[cpu] = !hsw_ext_get_count(num, &val, cpu); + current_count[num][cpu] = val; + } + } + return 0; +} + +struct cpuidle_monitor intel_hsw_ext_monitor; + +static struct cpuidle_monitor *hsw_ext_register(void) +{ + int num; + + if (cpupower_cpu_info.vendor != X86_VENDOR_INTEL + || cpupower_cpu_info.family != 6) + return NULL; + + switch (cpupower_cpu_info.model) { + case 0x45: /* HSW */ + break; + default: + return NULL; + } + + is_valid = calloc(cpu_count, sizeof(int)); + for (num = 0; num < HSW_EXT_CSTATE_COUNT; num++) { + previous_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + current_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + } + intel_hsw_ext_monitor.name_len = strlen(intel_hsw_ext_monitor.name); + return &intel_hsw_ext_monitor; +} + +void hsw_ext_unregister(void) +{ + int num; + free(is_valid); + for (num = 0; num < HSW_EXT_CSTATE_COUNT; num++) { + free(previous_count[num]); + free(current_count[num]); + } +} + +struct cpuidle_monitor intel_hsw_ext_monitor = { + .name = "HaswellExtended", + .hw_states = hsw_ext_cstates, + .hw_states_num = HSW_EXT_CSTATE_COUNT, + .start = hsw_ext_start, + .stop = hsw_ext_stop, + .do_register = hsw_ext_register, + .unregister = hsw_ext_unregister, + .needs_root = 1, + .overflow_s = 922000000 /* 922337203 seconds TSC overflow + at 20GHz */ +}; +#endif /* defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/idle_monitor/idle_monitors.def b/tools/power/cpupower/utils/idle_monitor/idle_monitors.def new file mode 100644 index 000000000..0d6ba4dbb --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/idle_monitors.def @@ -0,0 +1,8 @@ +#if defined(__i386__) || defined(__x86_64__) +DEF(amd_fam14h) +DEF(intel_nhm) +DEF(intel_snb) +DEF(intel_hsw_ext) +DEF(mperf) +#endif +DEF(cpuidle_sysfs) diff --git a/tools/power/cpupower/utils/idle_monitor/idle_monitors.h b/tools/power/cpupower/utils/idle_monitor/idle_monitors.h new file mode 100644 index 000000000..4fcdeb1e0 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/idle_monitors.h @@ -0,0 +1,18 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Based on the idea from Michael Matz <matz@suse.de> + * + */ + +#ifndef _CPUIDLE_IDLE_MONITORS_H_ +#define _CPUIDLE_IDLE_MONITORS_H_ + +#define DEF(x) extern struct cpuidle_monitor x ##_monitor; +#include "idle_monitors.def" +#undef DEF +extern struct cpuidle_monitor *all_monitors[]; + +#endif /* _CPUIDLE_IDLE_MONITORS_H_ */ diff --git a/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c new file mode 100644 index 000000000..d7c2a6d13 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/mperf_monitor.c @@ -0,0 +1,340 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + */ + +#if defined(__i386__) || defined(__x86_64__) + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <limits.h> + +#include <cpufreq.h> + +#include "helpers/helpers.h" +#include "idle_monitor/cpupower-monitor.h" + +#define MSR_APERF 0xE8 +#define MSR_MPERF 0xE7 + +#define MSR_TSC 0x10 + +#define MSR_AMD_HWCR 0xc0010015 + +enum mperf_id { C0 = 0, Cx, AVG_FREQ, MPERF_CSTATE_COUNT }; + +static int mperf_get_count_percent(unsigned int self_id, double *percent, + unsigned int cpu); +static int mperf_get_count_freq(unsigned int id, unsigned long long *count, + unsigned int cpu); +static struct timespec time_start, time_end; + +static cstate_t mperf_cstates[MPERF_CSTATE_COUNT] = { + { + .name = "C0", + .desc = N_("Processor Core not idle"), + .id = C0, + .range = RANGE_THREAD, + .get_count_percent = mperf_get_count_percent, + }, + { + .name = "Cx", + .desc = N_("Processor Core in an idle state"), + .id = Cx, + .range = RANGE_THREAD, + .get_count_percent = mperf_get_count_percent, + }, + + { + .name = "Freq", + .desc = N_("Average Frequency (including boost) in MHz"), + .id = AVG_FREQ, + .range = RANGE_THREAD, + .get_count = mperf_get_count_freq, + }, +}; + +enum MAX_FREQ_MODE { MAX_FREQ_SYSFS, MAX_FREQ_TSC_REF }; +static int max_freq_mode; +/* + * The max frequency mperf is ticking at (in C0), either retrieved via: + * 1) calculated after measurements if we know TSC ticks at mperf/P0 frequency + * 2) cpufreq /sys/devices/.../cpu0/cpufreq/cpuinfo_max_freq at init time + * 1. Is preferred as it also works without cpufreq subsystem (e.g. on Xen) + */ +static unsigned long max_frequency; + +static unsigned long long tsc_at_measure_start; +static unsigned long long tsc_at_measure_end; +static unsigned long long *mperf_previous_count; +static unsigned long long *aperf_previous_count; +static unsigned long long *mperf_current_count; +static unsigned long long *aperf_current_count; + +/* valid flag for all CPUs. If a MSR read failed it will be zero */ +static int *is_valid; + +static int mperf_get_tsc(unsigned long long *tsc) +{ + int ret; + + ret = read_msr(base_cpu, MSR_TSC, tsc); + if (ret) + dprint("Reading TSC MSR failed, returning %llu\n", *tsc); + return ret; +} + +static int mperf_init_stats(unsigned int cpu) +{ + unsigned long long val; + int ret; + + ret = read_msr(cpu, MSR_APERF, &val); + aperf_previous_count[cpu] = val; + ret |= read_msr(cpu, MSR_MPERF, &val); + mperf_previous_count[cpu] = val; + is_valid[cpu] = !ret; + + return 0; +} + +static int mperf_measure_stats(unsigned int cpu) +{ + unsigned long long val; + int ret; + + ret = read_msr(cpu, MSR_APERF, &val); + aperf_current_count[cpu] = val; + ret |= read_msr(cpu, MSR_MPERF, &val); + mperf_current_count[cpu] = val; + is_valid[cpu] = !ret; + + return 0; +} + +static int mperf_get_count_percent(unsigned int id, double *percent, + unsigned int cpu) +{ + unsigned long long aperf_diff, mperf_diff, tsc_diff; + unsigned long long timediff; + + if (!is_valid[cpu]) + return -1; + + if (id != C0 && id != Cx) + return -1; + + mperf_diff = mperf_current_count[cpu] - mperf_previous_count[cpu]; + aperf_diff = aperf_current_count[cpu] - aperf_previous_count[cpu]; + + if (max_freq_mode == MAX_FREQ_TSC_REF) { + tsc_diff = tsc_at_measure_end - tsc_at_measure_start; + *percent = 100.0 * mperf_diff / tsc_diff; + dprint("%s: TSC Ref - mperf_diff: %llu, tsc_diff: %llu\n", + mperf_cstates[id].name, mperf_diff, tsc_diff); + } else if (max_freq_mode == MAX_FREQ_SYSFS) { + timediff = max_frequency * timespec_diff_us(time_start, time_end); + *percent = 100.0 * mperf_diff / timediff; + dprint("%s: MAXFREQ - mperf_diff: %llu, time_diff: %llu\n", + mperf_cstates[id].name, mperf_diff, timediff); + } else + return -1; + + if (id == Cx) + *percent = 100.0 - *percent; + + dprint("%s: previous: %llu - current: %llu - (%u)\n", + mperf_cstates[id].name, mperf_diff, aperf_diff, cpu); + dprint("%s: %f\n", mperf_cstates[id].name, *percent); + return 0; +} + +static int mperf_get_count_freq(unsigned int id, unsigned long long *count, + unsigned int cpu) +{ + unsigned long long aperf_diff, mperf_diff, time_diff, tsc_diff; + + if (id != AVG_FREQ) + return 1; + + if (!is_valid[cpu]) + return -1; + + mperf_diff = mperf_current_count[cpu] - mperf_previous_count[cpu]; + aperf_diff = aperf_current_count[cpu] - aperf_previous_count[cpu]; + + if (max_freq_mode == MAX_FREQ_TSC_REF) { + /* Calculate max_freq from TSC count */ + tsc_diff = tsc_at_measure_end - tsc_at_measure_start; + time_diff = timespec_diff_us(time_start, time_end); + max_frequency = tsc_diff / time_diff; + } + + *count = max_frequency * ((double)aperf_diff / mperf_diff); + dprint("%s: Average freq based on %s maximum frequency:\n", + mperf_cstates[id].name, + (max_freq_mode == MAX_FREQ_TSC_REF) ? "TSC calculated" : "sysfs read"); + dprint("max_frequency: %lu\n", max_frequency); + dprint("aperf_diff: %llu\n", aperf_diff); + dprint("mperf_diff: %llu\n", mperf_diff); + dprint("avg freq: %llu\n", *count); + return 0; +} + +static int mperf_start(void) +{ + int cpu; + unsigned long long dbg; + + clock_gettime(CLOCK_REALTIME, &time_start); + mperf_get_tsc(&tsc_at_measure_start); + + for (cpu = 0; cpu < cpu_count; cpu++) + mperf_init_stats(cpu); + + mperf_get_tsc(&dbg); + dprint("TSC diff: %llu\n", dbg - tsc_at_measure_start); + return 0; +} + +static int mperf_stop(void) +{ + unsigned long long dbg; + int cpu; + + for (cpu = 0; cpu < cpu_count; cpu++) + mperf_measure_stats(cpu); + + mperf_get_tsc(&tsc_at_measure_end); + clock_gettime(CLOCK_REALTIME, &time_end); + + mperf_get_tsc(&dbg); + dprint("TSC diff: %llu\n", dbg - tsc_at_measure_end); + + return 0; +} + +/* + * Mperf register is defined to tick at P0 (maximum) frequency + * + * Instead of reading out P0 which can be tricky to read out from HW, + * we use TSC counter if it reliably ticks at P0/mperf frequency. + * + * Still try to fall back to: + * /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq + * on older Intel HW without invariant TSC feature. + * Or on AMD machines where TSC does not tick at P0 (do not exist yet, but + * it's still double checked (MSR_AMD_HWCR)). + * + * On these machines the user would still get useful mperf + * stats when acpi-cpufreq driver is loaded. + */ +static int init_maxfreq_mode(void) +{ + int ret; + unsigned long long hwcr; + unsigned long min; + + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_INV_TSC)) + goto use_sysfs; + + if (cpupower_cpu_info.vendor == X86_VENDOR_AMD) { + /* MSR_AMD_HWCR tells us whether TSC runs at P0/mperf + * freq. + * A test whether hwcr is accessable/available would be: + * (cpupower_cpu_info.family > 0x10 || + * cpupower_cpu_info.family == 0x10 && + * cpupower_cpu_info.model >= 0x2)) + * This should be the case for all aperf/mperf + * capable AMD machines and is therefore safe to test here. + * Compare with Linus kernel git commit: acf01734b1747b1ec4 + */ + ret = read_msr(0, MSR_AMD_HWCR, &hwcr); + /* + * If the MSR read failed, assume a Xen system that did + * not explicitly provide access to it and assume TSC works + */ + if (ret != 0) { + dprint("TSC read 0x%x failed - assume TSC working\n", + MSR_AMD_HWCR); + return 0; + } else if (1 & (hwcr >> 24)) { + max_freq_mode = MAX_FREQ_TSC_REF; + return 0; + } else { /* Use sysfs max frequency if available */ } + } else if (cpupower_cpu_info.vendor == X86_VENDOR_INTEL) { + /* + * On Intel we assume mperf (in C0) is ticking at same + * rate than TSC + */ + max_freq_mode = MAX_FREQ_TSC_REF; + return 0; + } +use_sysfs: + if (cpufreq_get_hardware_limits(0, &min, &max_frequency)) { + dprint("Cannot retrieve max freq from cpufreq kernel " + "subsystem\n"); + return -1; + } + max_freq_mode = MAX_FREQ_SYSFS; + max_frequency /= 1000; /* Default automatically to MHz value */ + return 0; +} + +/* + * This monitor provides: + * + * 1) Average frequency a CPU resided in + * This always works if the CPU has aperf/mperf capabilities + * + * 2) C0 and Cx (any sleep state) time a CPU resided in + * Works if mperf timer stops ticking in sleep states which + * seem to be the case on all current HW. + * Both is directly retrieved from HW registers and is independent + * from kernel statistics. + */ +struct cpuidle_monitor mperf_monitor; +struct cpuidle_monitor *mperf_register(void) +{ + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_APERF)) + return NULL; + + if (init_maxfreq_mode()) + return NULL; + + /* Free this at program termination */ + is_valid = calloc(cpu_count, sizeof(int)); + mperf_previous_count = calloc(cpu_count, sizeof(unsigned long long)); + aperf_previous_count = calloc(cpu_count, sizeof(unsigned long long)); + mperf_current_count = calloc(cpu_count, sizeof(unsigned long long)); + aperf_current_count = calloc(cpu_count, sizeof(unsigned long long)); + + mperf_monitor.name_len = strlen(mperf_monitor.name); + return &mperf_monitor; +} + +void mperf_unregister(void) +{ + free(mperf_previous_count); + free(aperf_previous_count); + free(mperf_current_count); + free(aperf_current_count); + free(is_valid); +} + +struct cpuidle_monitor mperf_monitor = { + .name = "Mperf", + .hw_states_num = MPERF_CSTATE_COUNT, + .hw_states = mperf_cstates, + .start = mperf_start, + .stop = mperf_stop, + .do_register = mperf_register, + .unregister = mperf_unregister, + .needs_root = 1, + .overflow_s = 922000000 /* 922337203 seconds TSC overflow + at 20GHz */ +}; +#endif /* #if defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/idle_monitor/nhm_idle.c b/tools/power/cpupower/utils/idle_monitor/nhm_idle.c new file mode 100644 index 000000000..abf8cb5f7 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/nhm_idle.c @@ -0,0 +1,216 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Based on Len Brown's <lenb@kernel.org> turbostat tool. + */ + +#if defined(__i386__) || defined(__x86_64__) + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "helpers/helpers.h" +#include "idle_monitor/cpupower-monitor.h" + +#define MSR_PKG_C3_RESIDENCY 0x3F8 +#define MSR_PKG_C6_RESIDENCY 0x3F9 +#define MSR_CORE_C3_RESIDENCY 0x3FC +#define MSR_CORE_C6_RESIDENCY 0x3FD + +#define MSR_TSC 0x10 + +#define NHM_CSTATE_COUNT 4 + +enum intel_nhm_id { C3 = 0, C6, PC3, PC6, TSC = 0xFFFF }; + +static int nhm_get_count_percent(unsigned int self_id, double *percent, + unsigned int cpu); + +static cstate_t nhm_cstates[NHM_CSTATE_COUNT] = { + { + .name = "C3", + .desc = N_("Processor Core C3"), + .id = C3, + .range = RANGE_CORE, + .get_count_percent = nhm_get_count_percent, + }, + { + .name = "C6", + .desc = N_("Processor Core C6"), + .id = C6, + .range = RANGE_CORE, + .get_count_percent = nhm_get_count_percent, + }, + + { + .name = "PC3", + .desc = N_("Processor Package C3"), + .id = PC3, + .range = RANGE_PACKAGE, + .get_count_percent = nhm_get_count_percent, + }, + { + .name = "PC6", + .desc = N_("Processor Package C6"), + .id = PC6, + .range = RANGE_PACKAGE, + .get_count_percent = nhm_get_count_percent, + }, +}; + +static unsigned long long tsc_at_measure_start; +static unsigned long long tsc_at_measure_end; +static unsigned long long *previous_count[NHM_CSTATE_COUNT]; +static unsigned long long *current_count[NHM_CSTATE_COUNT]; +/* valid flag for all CPUs. If a MSR read failed it will be zero */ +static int *is_valid; + +static int nhm_get_count(enum intel_nhm_id id, unsigned long long *val, + unsigned int cpu) +{ + int msr; + + switch (id) { + case C3: + msr = MSR_CORE_C3_RESIDENCY; + break; + case C6: + msr = MSR_CORE_C6_RESIDENCY; + break; + case PC3: + msr = MSR_PKG_C3_RESIDENCY; + break; + case PC6: + msr = MSR_PKG_C6_RESIDENCY; + break; + case TSC: + msr = MSR_TSC; + break; + default: + return -1; + }; + if (read_msr(cpu, msr, val)) + return -1; + + return 0; +} + +static int nhm_get_count_percent(unsigned int id, double *percent, + unsigned int cpu) +{ + *percent = 0.0; + + if (!is_valid[cpu]) + return -1; + + *percent = (100.0 * + (current_count[id][cpu] - previous_count[id][cpu])) / + (tsc_at_measure_end - tsc_at_measure_start); + + dprint("%s: previous: %llu - current: %llu - (%u)\n", + nhm_cstates[id].name, previous_count[id][cpu], + current_count[id][cpu], cpu); + + dprint("%s: tsc_diff: %llu - count_diff: %llu - percent: %2.f (%u)\n", + nhm_cstates[id].name, + (unsigned long long) tsc_at_measure_end - tsc_at_measure_start, + current_count[id][cpu] - previous_count[id][cpu], + *percent, cpu); + + return 0; +} + +static int nhm_start(void) +{ + int num, cpu; + unsigned long long dbg, val; + + nhm_get_count(TSC, &tsc_at_measure_start, base_cpu); + + for (num = 0; num < NHM_CSTATE_COUNT; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) { + is_valid[cpu] = !nhm_get_count(num, &val, cpu); + previous_count[num][cpu] = val; + } + } + nhm_get_count(TSC, &dbg, base_cpu); + dprint("TSC diff: %llu\n", dbg - tsc_at_measure_start); + return 0; +} + +static int nhm_stop(void) +{ + unsigned long long val; + unsigned long long dbg; + int num, cpu; + + nhm_get_count(TSC, &tsc_at_measure_end, base_cpu); + + for (num = 0; num < NHM_CSTATE_COUNT; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) { + is_valid[cpu] = !nhm_get_count(num, &val, cpu); + current_count[num][cpu] = val; + } + } + nhm_get_count(TSC, &dbg, base_cpu); + dprint("TSC diff: %llu\n", dbg - tsc_at_measure_end); + + return 0; +} + +struct cpuidle_monitor intel_nhm_monitor; + +struct cpuidle_monitor *intel_nhm_register(void) +{ + int num; + + if (cpupower_cpu_info.vendor != X86_VENDOR_INTEL) + return NULL; + + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_INV_TSC)) + return NULL; + + if (!(cpupower_cpu_info.caps & CPUPOWER_CAP_APERF)) + return NULL; + + /* Free this at program termination */ + is_valid = calloc(cpu_count, sizeof(int)); + for (num = 0; num < NHM_CSTATE_COUNT; num++) { + previous_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + current_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + } + + intel_nhm_monitor.name_len = strlen(intel_nhm_monitor.name); + return &intel_nhm_monitor; +} + +void intel_nhm_unregister(void) +{ + int num; + + for (num = 0; num < NHM_CSTATE_COUNT; num++) { + free(previous_count[num]); + free(current_count[num]); + } + free(is_valid); +} + +struct cpuidle_monitor intel_nhm_monitor = { + .name = "Nehalem", + .hw_states_num = NHM_CSTATE_COUNT, + .hw_states = nhm_cstates, + .start = nhm_start, + .stop = nhm_stop, + .do_register = intel_nhm_register, + .unregister = intel_nhm_unregister, + .needs_root = 1, + .overflow_s = 922000000 /* 922337203 seconds TSC overflow + at 20GHz */ +}; +#endif diff --git a/tools/power/cpupower/utils/idle_monitor/snb_idle.c b/tools/power/cpupower/utils/idle_monitor/snb_idle.c new file mode 100644 index 000000000..a2b452196 --- /dev/null +++ b/tools/power/cpupower/utils/idle_monitor/snb_idle.c @@ -0,0 +1,200 @@ +/* + * (C) 2010,2011 Thomas Renninger <trenn@suse.de>, Novell Inc. + * + * Licensed under the terms of the GNU GPL License version 2. + * + * Based on Len Brown's <lenb@kernel.org> turbostat tool. + */ + +#if defined(__i386__) || defined(__x86_64__) + +#include <stdio.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "helpers/helpers.h" +#include "idle_monitor/cpupower-monitor.h" + +#define MSR_PKG_C2_RESIDENCY 0x60D +#define MSR_PKG_C7_RESIDENCY 0x3FA +#define MSR_CORE_C7_RESIDENCY 0x3FE + +#define MSR_TSC 0x10 + +enum intel_snb_id { C7 = 0, PC2, PC7, SNB_CSTATE_COUNT, TSC = 0xFFFF }; + +static int snb_get_count_percent(unsigned int self_id, double *percent, + unsigned int cpu); + +static cstate_t snb_cstates[SNB_CSTATE_COUNT] = { + { + .name = "C7", + .desc = N_("Processor Core C7"), + .id = C7, + .range = RANGE_CORE, + .get_count_percent = snb_get_count_percent, + }, + { + .name = "PC2", + .desc = N_("Processor Package C2"), + .id = PC2, + .range = RANGE_PACKAGE, + .get_count_percent = snb_get_count_percent, + }, + { + .name = "PC7", + .desc = N_("Processor Package C7"), + .id = PC7, + .range = RANGE_PACKAGE, + .get_count_percent = snb_get_count_percent, + }, +}; + +static unsigned long long tsc_at_measure_start; +static unsigned long long tsc_at_measure_end; +static unsigned long long *previous_count[SNB_CSTATE_COUNT]; +static unsigned long long *current_count[SNB_CSTATE_COUNT]; +/* valid flag for all CPUs. If a MSR read failed it will be zero */ +static int *is_valid; + +static int snb_get_count(enum intel_snb_id id, unsigned long long *val, + unsigned int cpu) +{ + int msr; + + switch (id) { + case C7: + msr = MSR_CORE_C7_RESIDENCY; + break; + case PC2: + msr = MSR_PKG_C2_RESIDENCY; + break; + case PC7: + msr = MSR_PKG_C7_RESIDENCY; + break; + case TSC: + msr = MSR_TSC; + break; + default: + return -1; + }; + if (read_msr(cpu, msr, val)) + return -1; + return 0; +} + +static int snb_get_count_percent(unsigned int id, double *percent, + unsigned int cpu) +{ + *percent = 0.0; + + if (!is_valid[cpu]) + return -1; + + *percent = (100.0 * + (current_count[id][cpu] - previous_count[id][cpu])) / + (tsc_at_measure_end - tsc_at_measure_start); + + dprint("%s: previous: %llu - current: %llu - (%u)\n", + snb_cstates[id].name, previous_count[id][cpu], + current_count[id][cpu], cpu); + + dprint("%s: tsc_diff: %llu - count_diff: %llu - percent: %2.f (%u)\n", + snb_cstates[id].name, + (unsigned long long) tsc_at_measure_end - tsc_at_measure_start, + current_count[id][cpu] - previous_count[id][cpu], + *percent, cpu); + + return 0; +} + +static int snb_start(void) +{ + int num, cpu; + unsigned long long val; + + for (num = 0; num < SNB_CSTATE_COUNT; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) { + snb_get_count(num, &val, cpu); + previous_count[num][cpu] = val; + } + } + snb_get_count(TSC, &tsc_at_measure_start, base_cpu); + return 0; +} + +static int snb_stop(void) +{ + unsigned long long val; + int num, cpu; + + snb_get_count(TSC, &tsc_at_measure_end, base_cpu); + + for (num = 0; num < SNB_CSTATE_COUNT; num++) { + for (cpu = 0; cpu < cpu_count; cpu++) { + is_valid[cpu] = !snb_get_count(num, &val, cpu); + current_count[num][cpu] = val; + } + } + return 0; +} + +struct cpuidle_monitor intel_snb_monitor; + +static struct cpuidle_monitor *snb_register(void) +{ + int num; + + if (cpupower_cpu_info.vendor != X86_VENDOR_INTEL + || cpupower_cpu_info.family != 6) + return NULL; + + switch (cpupower_cpu_info.model) { + case 0x2A: /* SNB */ + case 0x2D: /* SNB Xeon */ + case 0x3A: /* IVB */ + case 0x3E: /* IVB Xeon */ + case 0x3C: /* HSW */ + case 0x3F: /* HSW */ + case 0x45: /* HSW */ + case 0x46: /* HSW */ + break; + default: + return NULL; + } + + is_valid = calloc(cpu_count, sizeof(int)); + for (num = 0; num < SNB_CSTATE_COUNT; num++) { + previous_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + current_count[num] = calloc(cpu_count, + sizeof(unsigned long long)); + } + intel_snb_monitor.name_len = strlen(intel_snb_monitor.name); + return &intel_snb_monitor; +} + +void snb_unregister(void) +{ + int num; + free(is_valid); + for (num = 0; num < SNB_CSTATE_COUNT; num++) { + free(previous_count[num]); + free(current_count[num]); + } +} + +struct cpuidle_monitor intel_snb_monitor = { + .name = "SandyBridge", + .hw_states = snb_cstates, + .hw_states_num = SNB_CSTATE_COUNT, + .start = snb_start, + .stop = snb_stop, + .do_register = snb_register, + .unregister = snb_unregister, + .needs_root = 1, + .overflow_s = 922000000 /* 922337203 seconds TSC overflow + at 20GHz */ +}; +#endif /* defined(__i386__) || defined(__x86_64__) */ diff --git a/tools/power/cpupower/utils/version-gen.sh b/tools/power/cpupower/utils/version-gen.sh new file mode 100755 index 000000000..c70de2eab --- /dev/null +++ b/tools/power/cpupower/utils/version-gen.sh @@ -0,0 +1,36 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Script which prints out the version to use for building cpupowerutils. +# Must be called from tools/power/cpupower/ +# +# Heavily based on tools/perf/util/PERF-VERSION-GEN . + +LF=' +' + +# First check if there is a .git to get the version from git describe +# otherwise try to get the version from the kernel makefile +if test -d ../../../.git -o -f ../../../.git && + VN=$(git describe --abbrev=4 HEAD 2>/dev/null) && + case "$VN" in + *$LF*) (exit 1) ;; + v[0-9]*) + git update-index -q --refresh + test -z "$(git diff-index --name-only HEAD --)" || + VN="$VN-dirty" ;; + esac +then + VN=$(echo "$VN" | sed -e 's/-/./g'); +else + eval $(grep '^VERSION[[:space:]]*=' ../../../Makefile|tr -d ' ') + eval $(grep '^PATCHLEVEL[[:space:]]*=' ../../../Makefile|tr -d ' ') + eval $(grep '^SUBLEVEL[[:space:]]*=' ../../../Makefile|tr -d ' ') + eval $(grep '^EXTRAVERSION[[:space:]]*=' ../../../Makefile|tr -d ' ') + + VN="${VERSION}.${PATCHLEVEL}.${SUBLEVEL}${EXTRAVERSION}" +fi + +VN=$(expr "$VN" : v*'\(.*\)') + +echo $VN |