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git://anongit.freedesktop.org/git/drm-intel into drm-next
4 weeks worth of stuff since I was traveling&lazy:
- lspcon improvements (Imre)
- proper atomic state for cdclk handling (Ville)
- gpu reset improvements (Chris)
- lots and lots of polish around fences, requests, waiting and
everything related all over (both gem and modeset code), from Chris
- atomic by default on gen5+ minus byt/bsw (Maarten did the patch to
flip the default, really this is a massive joint team effort)
- moar power domains, now 64bit (Ander)
- big pile of in-kernel unit tests for various gem subsystems (Chris),
including simple mock objects for i915 device and and the ggtt
manager.
- i915_gpu_info in debugfs, for taking a snapshot of the current gpu
state. Same thing as i915_error_state, but useful if the kernel didn't
notice something is stick. From Chris.
- bxt dsi fixes (Umar Shankar)
- bxt w/a updates (Jani)
- no more struct_mutex for gem object unreference (Chris)
- some execlist refactoring (Tvrtko)
- color manager support for glk (Ander)
- improve the power-well sync code to better take over from the
firmware (Imre)
- gem tracepoint polish (Tvrtko)
- lots of glk fixes all around (Ander)
- ctx switch improvements (Chris)
- glk dsi support&fixes (Deepak M)
- dsi fixes for vlv and clanups, lots of them (Hans de Goede)
- switch to i915.ko types in lots of our internal modeset code (Ander)
- byt/bsw atomic wm update code, yay (Ville)
* tag 'drm-intel-next-2017-03-06' of git://anongit.freedesktop.org/git/drm-intel: (432 commits)
drm/i915: Update DRIVER_DATE to 20170306
drm/i915: Don't use enums for hardware engine id
drm/i915: Split breadcrumbs spinlock into two
drm/i915: Refactor wakeup of the next breadcrumb waiter
drm/i915: Take reference for signaling the request from hardirq
drm/i915: Add FIFO underrun tracepoints
drm/i915: Add cxsr toggle tracepoint
drm/i915: Add VLV/CHV watermark/FIFO programming tracepoints
drm/i915: Add plane update/disable tracepoints
drm/i915: Kill level 0 wm hack for VLV/CHV
drm/i915: Workaround VLV/CHV sprite1->sprite0 enable underrun
drm/i915: Sanitize VLV/CHV watermarks properly
drm/i915: Only use update_wm_{pre,post} for pre-ilk platforms
drm/i915: Nuke crtc->wm.cxsr_allowed
drm/i915: Compute proper intermediate wms for vlv/cvh
drm/i915: Skip useless watermark/FIFO related work on VLV/CHV when not needed
drm/i915: Compute vlv/chv wms the atomic way
drm/i915: Compute VLV/CHV FIFO sizes based on the PM2 watermarks
drm/i915: Plop vlv/chv fifo sizes into crtc state
drm/i915: Plop vlv wm state into crtc_state
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Backmerge the main pull request to sync up with all the newly landed
drivers. Otherwise we'll have chaos even before 4.12 started in
earnest.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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Some pieces of code are independent of hardware but are very tricky to
exercise through the normal userspace ABI or via debugfs hooks. Being
able to create mock unit tests and execute them through CI is vital.
Start by adding a central point where we can execute unit tests and
a parameter to enable them. This is disabled by default as the
expectation is that these tests will occasionally explode.
To facilitate integration with igt, any parameter beginning with
i915.igt__ is interpreted as a subtest executable independently via
igt/drv_selftest.
Two classes of selftests are recognised: mock unit tests and integration
tests. Mock unit tests are run as soon as the module is loaded, before
the device is probed. At that point there is no driver instantiated and
all hw interactions must be "mocked". This is very useful for writing
universal tests to exercise code not typically run on a broad range of
architectures. Alternatively, you can hook into the live selftests and
run when the device has been instantiated - hw interactions are real.
v2: Add a macro for compiling conditional code for mock objects inside
real objects.
v3: Differentiate between mock unit tests and late integration test.
v4: List the tests in natural order, use igt to sort after modparam.
v5: s/late/live/
v6: s/unsigned long/unsigned int/
v7: Use igt_ prefixes for long helpers.
v8: Deobfuscate macros overriding functions, stop using -I$(src)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-1-chris@chris-wilson.co.uk
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Pull more KVM updates from Radim Krčmář:
"Second batch of KVM changes for the 4.11 merge window:
PPC:
- correct assumption about ASDR on POWER9
- fix MMIO emulation on POWER9
x86:
- add a simple test for ioperm
- cleanup TSS (going through KVM tree as the whole undertaking was
caused by VMX's use of TSS)
- fix nVMX interrupt delivery
- fix some performance counters in the guest
... and two cleanup patches"
* tag 'kvm-4.11-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: nVMX: Fix pending events injection
x86/kvm/vmx: remove unused variable in segment_base()
selftests/x86: Add a basic selftest for ioperm
x86/asm: Tidy up TSS limit code
kvm: convert kvm.users_count from atomic_t to refcount_t
KVM: x86: never specify a sample period for virtualized in_tx_cp counters
KVM: PPC: Book3S HV: Don't use ASDR for real-mode HPT faults on POWER9
KVM: PPC: Book3S HV: Fix software walk of guest process page tables
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This doesn't fully exercise the interaction between KVM and ioperm(),
but it does test basic functionality.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc final vfs updates from Al Viro:
"A few unrelated patches that got beating in -next.
Everything else will have to go into the next window ;-/"
* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
hfs: fix hfs_readdir()
selftest for default_file_splice_read() infoleak
9p: constify ->d_name handling
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bug fixed in commit b9dc6f65bc5e ("fix a fencepost error in pipe_advance()")
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A fix and regression test case for nvdimm namespace label
compatibility.
Details:
- An "nvdimm namespace label" is metadata on an nvdimm that
provisions dimm capacity into a "namespace" that can host a block
device / dax-filesytem, or a device-dax character device.
A namespace is an object that other operating environment and
platform firmware needs to comprehend for capabilities like booting
from an nvdimm.
The label metadata contains a checksum that Linux was not
calculating correctly leading to other environments rejecting the
Linux label.
These have received a build success notification from the kbuild
robot, and a positive test result from Nick who reported the problem"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nfit, libnvdimm: fix interleave set cookie calculation
tools/testing/nvdimm: make iset cookie predictable
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For testing changes to the iset cookie algorithm we need a value that is
constant from run-to-run.
Stop including dynamic data in the emulated region_offset values. Also,
pick values that sort in a different order depending on whether the
comparison is a memcmp() of two 8-byte arrays or subtraction of two
64-bit values.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fix from Shuah Khan:
"This update consists of an urgent fix for individual test build
failures introduced in the 4.11-rc1 update"
* tag 'linux-kselftest-4.11-rc1-urgent_fix' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests: lib.mk Fix individual test builds
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In commit a8ba798bc8ec ("selftests: enable O and KBUILD_OUTPUT"), added
support to generate compile targets in a user specified directory. OUTPUT
variable controls the location which is undefined when tests are built in
the test directory or with "make -C tools/testing/selftests/x86".
make -C tools/testing/selftests/x86/
make: Entering directory '/lkml/linux_4.11/tools/testing/selftests/x86'
Makefile:44: warning: overriding recipe for target 'clean'
../lib.mk:51: warning: ignoring old recipe for target 'clean'
gcc -m64 -o /single_step_syscall_64 -O2 -g -std=gnu99 -pthread -Wall single_step_syscall.c -lrt -ldl
/usr/bin/ld: cannot open output file /single_step_syscall_64: Permission denied
collect2: error: ld returned 1 exit status
Makefile:50: recipe for target '/single_step_syscall_64' failed
make: *** [/single_step_syscall_64] Error 1
make: Leaving directory '/lkml/linux_4.11/tools/testing/selftests/x86'
Same failure with "cd tools/testing/selftests/x86/;make" run.
Fix this with a change to lib.mk to define OUTPUT to be the pwd when
MAKELEVEL is 0. This covers both cases mentioned above.
Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull turbostat utility updates from Rafael Wysocki:
"Power management turbostat utility updates.
These update turbostat significantly and in particular:
- default output is now verbose, --debug is no longer required to get
all counters. As a result, some options have been added to specify
exactly what output is wanted.
- added --quiet to skip system configuration output
- added --list, --show and --hide parameters
- added --cpu parameter
- enhanced Baytrail SoC support
- added Gemini Lake SoC support
- added sysfs C-state columns
Also the symbol definitions in arch/x86/include/asm/intel-family.h and
arch/x86/include/asm/msr-index.h are updated and the intel_idle and
intel_pstate drivers are modified to use the updated symbols.
Credits to Len Brown for all of these changes"
* tag 'pm-turbostat-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits)
tools/power turbostat: version 17.02.24
tools/power turbostat: bugfix: --add u32 was printed as u64
tools/power turbostat: show error on exec
tools/power turbostat: dump p-state software config
tools/power turbostat: show package number, even without --debug
tools/power turbostat: support "--hide C1" etc.
tools/power turbostat: move --Package and --processor into the --cpu option
tools/power turbostat: turbostat.8 update
tools/power turbostat: update --list feature
tools/power turbostat: use wide columns to display large numbers
tools/power turbostat: Add --list option to show available header names
tools/power turbostat: fix zero IRQ count shown in one-shot command mode
tools/power turbostat: add --cpu parameter
tools/power turbostat: print sysfs C-state stats
tools/power turbostat: extend --add option to accept /sys path
tools/power turbostat: skip unused counters on BDX
tools/power turbostat: fix decoding for GLM, DNV, SKX turbo-ratio limits
tools/power turbostat: skip unused counters on SKX
tools/power turbostat: Denverton: use HW CC1 counter, skip C3, C7
tools/power turbostat: initial Gemini Lake SOC support
...
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull changes related to turbostat for v4.11 from Len Brown.
* 'turbostat' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (44 commits)
tools/power turbostat: version 17.02.24
tools/power turbostat: bugfix: --add u32 was printed as u64
tools/power turbostat: show error on exec
tools/power turbostat: dump p-state software config
tools/power turbostat: show package number, even without --debug
tools/power turbostat: support "--hide C1" etc.
tools/power turbostat: move --Package and --processor into the --cpu option
tools/power turbostat: turbostat.8 update
tools/power turbostat: update --list feature
tools/power turbostat: use wide columns to display large numbers
tools/power turbostat: Add --list option to show available header names
tools/power turbostat: fix zero IRQ count shown in one-shot command mode
tools/power turbostat: add --cpu parameter
tools/power turbostat: print sysfs C-state stats
tools/power turbostat: extend --add option to accept /sys path
tools/power turbostat: skip unused counters on BDX
tools/power turbostat: fix decoding for GLM, DNV, SKX turbo-ratio limits
tools/power turbostat: skip unused counters on SKX
tools/power turbostat: Denverton: use HW CC1 counter, skip C3, C7
tools/power turbostat: initial Gemini Lake SOC support
...
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The turbostat before this last set of changes is obsolete.
This new version can do a lot more, but it also has
some different defaults, that might catch some off-guard.
So it seems a good time to give a new version number.
Signed-off-by: Len Brown <len.brown@intel.com>
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When the "u32" keyword is used with --add, it means that
the output should be truncated to 32-bits. This was not
happening and all 64-bits were printed.
Also, when no column name was used for an added MSR,
The default column name was in deximal, eg. MSR16.
Users report that they tend to use hex MSR numbers,
so print them in hex. To always fit into the columns,
use the syntax M0x10. Note that the user can always
supply any column header that they want.
eg --add msr0x10,MY_TSC
Signed-off-by: Len Brown <len.brown@intel.com>
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When turbostat is run in one-shot command mode,
the parent takes the 'before' counter snapshot,
fork/exec/wait for the child to exit,
takes the 'after' counter snapshot,
and prints the results.
however, if the child fails to exec the command,
it immediately returns, without indicating that
anythign was wrong.
Add an error message showing that exec failed:
sudo turbostat sleeeep 4
...
turbostat: exec sleeeep: No such file or directory
...
Note that the parent will still print out the statistics,
because it can't tell the difference between the failed
exec and a command that is purposefully returning
the same status. Unfortunately, this may obscure the
error message. However, if the --out parameter is used,
the error message is evident on stderr.
Reported-by: Wendy Wang <wendy.wang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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cpu1: cpufreq driver: acpi-cpufreq
cpu1: cpufreq governor: ondemand
cpufreq boost: 1
or
cpu0: cpufreq driver: intel_pstate
cpu0: cpufreq governor: powersave
cpufreq intel_pstate no_turbo: 0
Signed-off-by: Len Brown <len.brown@intel.com>
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On multi-package systems, the "Package" column was being displayed
only if --debug was used. Show it always.
Signed-off-by: Len Brown <len.brown@intel.com>
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Originally, the only way to hide the sysfs C-state statistics columns
was with "--hide sysfs". This was because we process "--hide" before
we probe for those columns.
hack --hide to remember deferred hide requests, and apply
them when sysfs is probed.
"--hide sysfs" is still available as short-hand to refer to
the entire group of counters.
The down-side of this change is that we no longer error check for
bogus --hide column names. But the user will quickly figure that
out if a column they mean to hide is still there...
Signed-off-by: Len Brown <len.brown@intel.com>
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--Package is now "--cpu package",
which will display just the 1st CPU in each package
--processor is not "--cpu core"
which will display just the 1st CPU in each core
Signed-off-by: Len Brown <len.brown@intel.com>
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update examples to show recently updated features.
In particular
--add
--show
--hide
--cpu
--list
Signed-off-by: Len Brown <len.brown@intel.com>
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Make it possible to take the entire un-edited output
from `turbostat --list` and feed it to "turbostat --show"
or "turbostat --hide".
To do this, the leading comma was removed
(no mater what columns are active)
and also they dynamic C-state "C1, C2, C3" etc are replaced
by the string "sysfs", which refers to them as a group.
Signed-off-by: Len Brown <len.brown@intel.com>
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When a counter overlfows 7 columns, it shifts the remaining
columns to the right, so they no longer line up under
their column header.
Update turbostat to dectect when it is handling large
numbers, and switch to wider columns where, necessary.
Reported-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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It is handy to know the list of column header names,
so that they can be used with --add and --skip
The new --list option shows them:
sudo ./turbostat --list --hide sysfs
,Core,CPU,Avg_MHz,Busy%,Bzy_MHz,TSC_MHz,IRQ,SMI,CPU%c1,CPU%c3,CPU%c6,CPU%c7,CoreTmp,PkgTmp,GFX%rc6,GFXMHz,PkgWatt,CorWatt,GFXWatt
Signed-off-by: Len Brown <len.brown@intel.com>
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The IRQ column has been working for periodic mode,
but not in one-shot command mode, it shows only 0.
until now.
Signed-off-by: Len Brown <len.brown@intel.com>
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With the --cpu parameter, turbostat prints only lines
for the specified set of CPUs:
sudo ./turbostat --quiet --show Core,CPU --cpu 0,1,3..5,6-7
Core CPU
- -
0 0
0 4
1 1
1 5
2 6
3 3
3 7
Signed-off-by: Len Brown <len.brown@intel.com>
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When turbostat shows % of time in a CPU idle power state,
it has always been showing information from underlying
hardware residency counters.
While this reflects what the hardware is doing, and is thus
useful for understanding the hardware,
it doesn't directly tell us what Linux requested --
which is useful for tuning Linux itself.
Here we add columns to turbostat to show the
Linux cpuidle sub-system statistics:
/sys/devices/system/cpu/cpu*/cpuidle/state*/*
The first group of columns are the "usage", which is the
number of times software requested that C-state in the
measurement interval. eg C1 below.
The second group of columns are the "time", which is the percentage
of the measurement interval time that software has requested
the specified C-state. eg C1% below.
These software counters can be compared to the underlying
hardware residency counters (eg CPU%c1 CPU%c3 CPU%c6 CPU%c7)
to compare what sofware requested to what the hardware delivered.
These sysfs attributes are discovered when turbostat starts,
rather than being "built in". So the --show and --hide
parameters do not know about these dynamic column names.
However "--show sysfs" and "--hide sysfs" act on the
entire group of columns:
turbostat --show sysfs
...
cpu4: POLL: CPUIDLE CORE POLL IDLE
cpu4: C1: MWAIT 0x00
cpu4: C1E: MWAIT 0x01
cpu4: C3: MWAIT 0x10
cpu4: C6: MWAIT 0x20
cpu4: C7s: MWAIT 0x32
...
C1 C1E C3 C6 C7s C1% C1E% C3% C6% C7s%
3 6 5 1 188 0.00 0.02 0.00 0.00 99.93
0 6 5 0 58 0.00 0.16 0.02 0.00 99.70
0 0 0 0 9 0.00 0.00 0.00 0.00 99.96
0 0 0 1 24 0.00 0.00 0.00 0.02 99.93
0 0 0 0 9 0.00 0.00 0.00 0.00 99.97
0 0 0 0 32 0.00 0.00 0.00 0.00 99.96
0 0 0 0 7 0.00 0.00 0.00 0.00 99.98
2 0 0 0 36 0.00 0.00 0.00 0.00 99.97
1 0 0 0 13 0.00 0.00 0.00 0.00 99.98
Signed-off-by: Len Brown <len.brown@intel.com>
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Previously, the --add option could specify only an MSR.
Here is is extended so an arbitrary /sys attribute,
as specified by an absolute file path name.
sudo ./turbostat --add /sys/devices/system/cpu/cpu0/cpuidle/state5/usage
Signed-off-by: Len Brown <len.brown@intel.com>
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Skip these two counters on BDX, as they are always zero:
cc7, pc7
Signed-off-by: Len Brown <len.brown@intel.com>
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Newer processors do not hard-code the the number of cpus in each bin
to {1, 2, 3, 4, 5, 6, 7, 8} Rather, they can specify any number
of CPUS in each of the 8 bins:
eg.
...
37 * 100.0 = 3600.0 MHz max turbo 4 active cores
38 * 100.0 = 3700.0 MHz max turbo 3 active cores
39 * 100.0 = 3800.0 MHz max turbo 2 active cores
39 * 100.0 = 3900.0 MHz max turbo 1 active cores
could now look something like this:
...
37 * 100.0 = 3600.0 MHz max turbo 16 active cores
38 * 100.0 = 3700.0 MHz max turbo 8 active cores
39 * 100.0 = 3800.0 MHz max turbo 4 active cores
39 * 100.0 = 3900.0 MHz max turbo 2 active cores
Signed-off-by: Len Brown <len.brown@intel.com>
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Skip these four counters on SKX, as they are always zero:
cc3, pc3
cc7, pc7
Signed-off-by: Len Brown <len.brown@intel.com>
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The CC1 column in tubostat can be computed by subtracting
the core c-state residency countes from the total Cx residency.
CC1 = (Idle_time_as_measured by MPERF) - (all core C-states with
residency counters)
However, as the underlying counter reads are not atomic,
error can be noticed in this calculations, especially
when the numbers are small.
Denverton has a hardware CC1 residency counter
to improve the accuracy of the cc1 statistic -- use it.
At the same time, Denverton has no concept of CC3, PC3, CC7, PC7,
so skip collecting and printing those columns.
Finally, a note of clarification.
Turbostat prints the standard PC2 residency counter,
but on Denverton hardware, that actually means PC1E.
Turbostat prints the standard PC6 residency counter,
but on Denverton hardware, that actually means PC2.
At this point, we document that differnce in this commit message,
rather than adding a quirk to the software.
Signed-off-by: Len Brown <len.brown@intel.com>
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Gemini Lake is similar to Apollo Lake (Broxton/Goldmont)
Signed-off-by: Len Brown <len.brown@intel.com>
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Fix a bug with --add, where the title of the column
is un-initialized if not specified by the user.
The initial implementation of --show and --hide
neglected to handle the pc8/pc9/pc10 counters.
Fix a bug where "--show Core" only worked with --debug
Reported-by: Wendy Wang <wendy.wang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The CPU ticks at a rate in the "bus clock" domain.
eg. 100 MHz * bus_ratio.
On newer processors, the TSC has been moved out of this BCLK
domain and into a separate crystal-clock domain.
While the TSC ticks "close to" the base frequency, those that look
closely at the numbers will notice small errors in calculations that
mix units of TSC clocks and bus clocks.
"tsc_tweak" was introduced to address the most visible
mixing -- the %Busy and the the Busy_MHz calculations.
(A simplification as since removed TSC from the BusyMHz calculation)
Here we apply the tsc_tweak to everyplace where BCLK
and TSC units are mixed. The results is that
on a system which is 100% idle, the sum of the C-states
are now much more likely to be closer to 100%.
Reported-by: Travis Downs <travis.downs@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Some users want turbostat to tell them everything, by default.
Some users want turbostat to be quiet, by default.
I find that I'm in the 1st camp, and so I've never liked
needing to type the --debug parameter to decode the system
configuration.
So here we change the default and print the system configuration,
by default. (The --debug option is now un-documented, though
it does still exist for debugging turbostat internals)
When you do not want to see the system configuration
header, use the new "--quiet" option.
Signed-off-by: Len Brown <len.brown@intel.com>
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Some time ago, turbostat overflowed 80 columns.
So on the assumption that a "casual" user would always
want topology and frequency columns, we hid the rest
of the columns and the system configuration decoding
behind the --debug option.
Not everybody liked that change -- including me.
I use --debug 99% of the time...
Well, now we have "-o file" to put turbostat output into a file,
so unless you are watching real-time in a small window,
column count is less frequently a factor.
And more recently, we got the "--hide columnA,columnB" option
to specify columns to skip.
So now we "un-hide" the rest of the columns from behind --debug,
and show them all, by default.
Signed-off-by: Len Brown <len.brown@intel.com>
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useful for observing if the BIOS disabled prefetch
Not architectural, but docuemented as present on NHM, SNB
and is present on others.
Signed-off-by: Len Brown <len.brown@intel.com>
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show the CPUID feature for turbo to clarify the case
when it may not be shown in MISC_ENABLE
CPUID(6): APERF, TURBO, DTS, PTM, No-HWP, No-HWPnotify, No-HWPwindow, No-HWPepp, No-HWPpkg, EPB
cpu4: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT TURBO)
Signed-off-by: Len Brown <len.brown@intel.com>
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Turbostat dumps MSR_TURBO_RATIO_LIMIT on Core Architecture.
But Atom Architecture uses MSR_ATOM_CORE_RATIOS and
MSR_ATOM_CORE_TURBO_RATIOS.
Signed-off-by: Len Brown <len.brown@intel.com>
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Decode MISC_ENABLE.NO_TURBO,
also use the #defines in msr-index.h for decoding this register
cpu0: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT TURBO)
Although it is not architectural, decode also
MSR_IA32_MISC_ENABLE.prefetch-disable (bit-9).
documented to be present on: Core, P4, Intel-Xeon
reserved on: Atom, Silvermont, Nehalem, SNB, PHI ec.
Signed-off-by: Len Brown <len.brown@intel.com>
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Add a digit of precision to the --debug output for frequency range.
This is useful when BCLK is not an integer.
old:
6 * 83 = 500 MHz max efficiency frequency
26 * 83 = 2166 MHz base frequency
new:
6 * 83.3 = 499.8 MHz max efficiency frequency
26 * 83.3 = 2165.8 MHz base frequency
Signed-off-by: Len Brown <len.brown@intel.com>
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The Baytrail SOC, with its Silvermont core, has some unique properties:
1. a hardware CC1 residency counter
2. a module-c6 residency counter
3. a package-c6 counter at traditional package-c7 counter address.
The SOC does not support c3, pc3, c7 or pc7 counters.
Signed-off-by: Len Brown <len.brown@intel.com>
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Previously called MSR_NHM_SNB_PKG_CST_CFG_CTL
Signed-off-by: Len Brown <len.brown@intel.com>
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AMT value 0 is unlimited, not PC0
Signed-off-by: Len Brown <len.brown@intel.com>
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Without --debug, a debug line was printed on Baytrail:
SLM BCLK: 83.3 Mhz
Signed-off-by: Len Brown <len.brown@intel.com>
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with --debug, see:
cpu0: MSR_CC6_DEMOTION_POLICY_CONFIG: 0x00000000 (DISable-CC6-Demotion)
cpu0: MSR_MC6_DEMOTION_POLICY_CONFIG: 0x00000000 (DISable-MC6-Demotion)
Note that the hardware default is to enable demotion,
and Linux started clearing these registers in 3.17.
Signed-off-by: Len Brown <len.brown@intel.com>
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and so --debug fails with:
turbostat: msr 1 offset 0x1aa read failed: Input/output error
It seems that baytrail, and airmont do not have this MSR.
It is included in subsequent Goldmont Atom.
Signed-off-by: Len Brown <len.brown@intel.com>
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Add the "--show" and "--hide" cmdline parameters.
By default, turbostat shows all columns.
turbostat --hide counter_list
will continue showing all columns, except for those listed.
turbostat --show counter_list
will show _only_ the listed columns
These features work for built-in counters, and have no effect
on columns added with the --add parameter.
Signed-off-by: Len Brown <len.brown@intel.com>
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When --add was used more than once, overflowed buffers
caused some counters to be stored on top of others,
corrupting the results. Simplify the code by simply
reserving space for up to 16 added counters per each
cpu, core, package.
Per-cpu added counters were being printed only per-core.
Signed-off-by: Len Brown <len.brown@intel.com>
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