Replace MSR_NHM_TURBO_RATIO_LIMIT with MSR_TURBO_RATIO_LIMIT.
Signed-off-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

When run
	make -C tools DESTDIR=/my/nice/dir turbostat_install
get a message
	install: cannot create regular file '/usr/bin/turbostat': Permission denied

Allow user to alter DESTDIR and PREFIX variables.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

ACPICA commit ba60e4500053010bf775d58f6f61febbdb94d817

New file is utascii.c

Link: https://github.com/acpica/acpica/commit/ba60e450Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

ACPICA commit b2294cae776f5a66a7697414b21949d307e6856f

This patch removes unwanted spaces for typedef. This solution doesn't cover
function types.

Note that the linuxize result of this commit is very giant and should have
many conflicts against the current Linux upstream. Thus it is required to
modify the linuxize result of this commit and the commits around it
manually in order to have them merged to the Linux upstream. Since this is
very costy, we should do this only once, and if we can't ensure to do this
only once, we need to revert the Linux code to the wrong indentation result
before merging the linuxize result of this commit. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/b2294caeSigned-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: NThomas Renninger <trenn@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This more or less is a renaming and moving of functions and should not
introduce any functional change.

cpupower was built from cpufrequtils (which had a C library providing easy
access to cpu frequency platform info). In the meantime it got enhanced
by quite some neat cpuidle userspace tools.

Now the cpu idle functions have been separated and added to the cpupower.so
library.
So beside an already existing public header file:
cpufreq.h
cpupower now also exports these cpu idle functions in:
cpuidle.h

Here again pasted for better review of the interfaces:

======================================
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);

======================================
Signed-off-by: NThomas Renninger <trenn@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

fix spelling mistake, avarage -> average
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NThomas Renninger <trenn@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The token before "-" should be the program name, no spaces allowed.
See man(7) and lexgrog(1).
Signed-off-by: NMattia Dongili <malattia@linux.it>
Signed-off-by: NThomas Renninger <trenn@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The error handling in prepare_output has several issues with
resource leaks.  Ensure that filename is free'd and the directory
stream DIR is closed before returning.
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NThomas Renninger <trenn@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Signed-off-by: NMattia Dongili <malattia@linux.it>
Signed-off-by: NThomas Renninger <trenn@suse.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

fix spelling mistake, avarage -> average
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

The logic on the test for a valid fd to close is incorrect.
This was just a mistake and was pointed out by Colin Ian King.

Link: https://patchwork.kernel.org/patch/8620201/Original-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Sometimes the rc6 sysfs counter spontaneously resets,
causing turbostat prints a very large number
as it tries to calcuate % = 100 * (old - new) / interval

When we see (old > new), print ***.**% instead
of a bogus huge number.

Note that this detection is not fool-proof, as the counter
could reset several times and still result in new > old.
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

KBL is similar to SKL
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

SKX has a lot in common with HSX
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Hard-code BXT ART to 19200MHz, so turbostat --debug
can fully enumerate TSC:

CPUID(0x15): eax_crystal: 3 ebx_tsc: 186 ecx_crystal_hz: 0
TSC: 1190 MHz (19200000 Hz * 186 / 3 / 1000000)
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Broxton has a lot in common with SKL
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Some processors use the Interrupt Response Time Limit (IRTL) MSR value
to describe the maximum IRQ response time latency for deep
package C-states.  (Though others have the register, but do not use it)
Lets print it out to give insight into the cases where it is used.

IRTL begain in SNB, with PC3/PC6/PC7, and HSW added PC8/PC9/PC10.
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The CPUID.SGX bit was printed, even if --debug was used
Signed-off-by: NLen Brown <len.brown@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

ACPICA commit 795e136d2ac77c1c8b091fba019b5fe36a44a323

Fixes a problem with the merger of the two internal versions
of this function. Make the maximum integer width (32-bit or
64-bit) a parameter to the function so that it no longer
exclusively uses the integer width specified in the DSDT/SSDT.
ACPICA BZ 1260

Link: https://github.com/acpica/acpica/commit/795e136dSigned-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

ACPICA commit 37a1dec2391272251e59948c16c60713183ae78f

Link: https://github.com/acpica/acpica/commit/37a1dec2Signed-off-by: NWill Miles <wmiles@sgl.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NLv Zheng <lv.zheng@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

MSR_CONFIG_TDP_NOMINAL:
should print all 8 bits of base_ratio (bit 0:7) 0xFF

MSR_CONFIG_TDP_LEVEL_1:
should print all 15 bits of PKG_MIN_PWR_LVL1 (bit 48:62) 0x7FFF
should print all 15 bits of PKG_MAX_PWR_LVL1 (bit 32:46) 0x7FFF
should print all 8 bits of LVL1_RATIO (bit 16:23) 0xFF
should print all 15 bits of PKG_TDP_LVL1 (bit 0:14) 0x7FFF

And the same modification to MSR_CONFIG_TDP_LEVEL_2.

MSR_TURBO_ACTIVATION_RATIO:
should print all 8 bits of MAX_NON_TURBO_RATIO (bit 0:7) 0xFF
Signed-off-by: NChen Yu <yu.c.chen@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008008 (...pkg-cstate-limit=0: unlimited)
should print as
MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x1e008008 (...pkg-cstate-limit=8: unlimited)
Signed-off-by: NLen Brown <len.brown@intel.com>

turbostat already checks whether calling each cpuid leavf is legal,
and it doesn't look at the function return value,
so call the simpler gcc intrinsic __cpuid() instead of __get_cpuid().

syntax only, no functional change
Signed-off-by: NLen Brown <len.brown@intel.com>

SGX presence is related to a SKL power workaround,
so lets show when that is enabled.
Signed-off-by: NLen Brown <len.brown@intel.com>

The accuracy of Bzy_Mhz and Busy% depend on reading
the TSC, APERF, and MPERF close together in time.

When there is a very short measurement interval,
or a large system is profoundly idle, the changes
in APERF and MPERF may be very small.
They can be small enough that an expensive interrupt
between reading APERF and MPERF can cause the APERF/MPERF
ratio to become inaccurate, resulting in invalid
calculation and display of Bzy_MHz.

A dummy APERF read of APERF makes this problem
much more rare.  Apparently this 1st systemn call
after exiting a long stretch of idle is when we
typically see expensive timer interrupts that cause
large jitter.

For the cases that dummy APERF read fails to prevent,
we compare the latency of the APERF and MPERF reads.
If they differ by more than 2x, we re-issue them.
Signed-off-by: NLen Brown <len.brown@intel.com>

The column "GFX%c6" show the percentage of time the GPU
is in the "render C6" state, rc6.  Deep package C-states on several
systems depend on the GPU being in RC6.

This information comes from the counter
/sys/class/drm/card0/power/rc6_residency_ms,
as read before and after the measurement interval.
Signed-off-by: NLen Brown <len.brown@intel.com>

Under the column "GFXMHz", show a snapshot of this attribute:
/sys/class/graphics/fb0/device/drm/card0/gt_cur_freq_mhz

This is an instantaneous snapshot of what sysfs presents
at the end of the measurement interval.  turbostat does
not average or otherwise perform any math on this value.
Signed-off-by: NLen Brown <len.brown@intel.com>

The new IRQ column shows how many interrupts have occurred on each CPU
during the measurement inteval.  This information comes from
the difference between /proc/interrupts shapshots made before
and after the measurement interval.

The first row, the system summary, shows the sum of the IRQS
for all CPUs during that interval.
Signed-off-by: NLen Brown <len.brown@intel.com>

skip the open(2)/close(2) on each msr read
by keeping the /dev/cpu/*/msr files open.

The remaining read(2) is generally far fewer cycles
than the removed open(2) system call.
Signed-off-by: NLen Brown <len.brown@intel.com>

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

By default...

Turbostat --debug gconfiguration info goes to stderr.

In FORK mode, turbostat statistics go to stderr.

In PERIODIC mode, turbostat statistics go to stdout.

These defaults do not change, but an option "--out file"
will send all output above only to the specified file.
Signed-off-by: NLen Brown <len.brown@intel.com>

some tools processing turbostat output
have difficulty with items that begin with %...
Reported-by: NJacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

Following changes have been made:
- changed MSR_NHM_TURBO_RATIO_LIMIT to MSR_TURBO_RATIO_LIMIT in debug print
  for consistency with Developer Manual
- updated definition of bitfields in MSR_TURBO_RATIO_LIMIT and appropriate
  parsing code
- added x200 to list of architectures that do not support Nahlem compatible
  definition of MSR_TURBO_RATIO_LIMIT register (x200 has the register but
  bits definition is custom)
- fixed typo in code that parses MSR_TURBO_RATIO_LIMIT
  (logical instead of bitwise operator)
- changed MSR_TURBO_RATIO_LIMIT parsing algorithm so the print out had the
  same order as implementations for other platforms
Signed-off-by: NHubert Chrzaniuk <hubert.chrzaniuk@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

x200 does not enable any way to programmatically obtain bus clock
speed. Bclk for the architecture has a fixed value of 100 MHz.
At the same time x200 cannot be included in has_snb_msrs since
it does not support C7 idle state.

prior to this patch, MHz values reported on this chip
were erroneously calculated using bclk of 133MHz,
causing MHz values to be reported 33% higher than actual.
Signed-off-by: NHubert Chrzaniuk <hubert.chrzaniuk@intel.com>
Signed-off-by: NLen Brown <len.brown@intel.com>

turbostat -i interval_sec

will sample and display statistics every interval_sec.
interval_sec used to be a whole number of seconds,
but now we accept a decimal, as small as 0.001 sec (1 ms).
Signed-off-by: NLen Brown <len.brown@intel.com>

When building with gcc 6 we're getting various build warnings that just
require some trivial function declaration and call fixes:

  turbostat.c: In function ‘dump_cstate_pstate_config_info’:
  turbostat.c:1973:1: warning: type of ‘family’ defaults to ‘int’
   dump_cstate_pstate_config_info(family, model)
  turbostat.c:1973:1: warning: type of ‘model’ defaults to ‘int’
  turbostat.c: In function ‘get_tdp’:
  turbostat.c:2145:8: warning: type of ‘model’ defaults to ‘int’
   double get_tdp(model)
  turbostat.c: In function ‘perf_limit_reasons_probe’:
  turbostat.c:2259:6: warning: type of ‘family’ defaults to ‘int’
   void perf_limit_reasons_probe(family, model)
  turbostat.c:2259:6: warning: type of ‘model’ defaults to ‘int’
Signed-off-by: NColin Ian King <colin.king@canonical.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-wbicer8n0s9qe6ql8h9x478e@git.kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>

This MSR is helpful to show if P-state HW coordination
is enabled or disabled.
Signed-off-by: NLen Brown <len.brown@intel.com>

 # turbostat --debug
...
CPUID(6): ... HWP, HWPnotify, HWPwindow, HWPepp, HWPpkg ...
...
cpu0: MSR_PM_ENABLE: 0x00000001 (HWP)
cpu0: MSR_HWP_CAPABILITIES: 0x01050916 (high 0x16 guar 0x9 eff 0x5 low 0x1)
cpu0: MSR_HWP_REQUEST: 0x80001604 (min 0x4 max 0x16 des 0x0 epp 0x80 window 0x0 pkg 0x0)
cpu0: MSR_HWP_INTERRUPT: 0x00000001 (EN_Guaranteed_Perf_Change, Dis_Excursion_Min)
cpu0: MSR_HWP_STATUS: 0x00000000 (No-Guaranteed_Perf_Change, No-Excursion_Min)
Signed-off-by: NLen Brown <len.brown@intel.com>

This CPUID leaf is available on Skylake:

CPUID(0x16): base_mhz: 1500 max_mhz: 2200 bus_mhz: 100
Signed-off-by: NLen Brown <len.brown@intel.com>