When CPU is offline, we can't get package id. So print error for this
and don't use output.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Here topology_max_cpus is used for total CPU count, not the last CPU
number. So remove "-1".
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Even for the products using MMIO, this message needs to be sent via
mail box. The previous fix done for this didn't properly address this.
That fix simply removed sending command via MMIO, but still didn't
trigger sending via mailbox.
Add additional condition to check for CLOS_PM_QOS_CONFIG, when MMIO
is supported on a platform.
Fixes: cd0e637065 (tools/power/x86/intel-speed-select: Use mailbox for CLOS_PM_QOS_CONFIG)
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Some Chromebook BIOS' do not export an ACPI LPIT, which is how
Linux finds the residency counter for CPU and SYSTEM low power states,
that is exports in /sys/devices/system/cpu/cpuidle/*residency_us
When these sysfs attributes are missing, check the debugfs attrubte
from the pmc_core driver, which accesses the same counter value.
Signed-off-by: Len Brown <len.brown@intel.com>
From a turbostat point of view the Tremont-based Elkhart Lake
is very similar to Goldmont, reuse the code of Goldmont.
Elkhart Lake does not support 'group turbo limit counter'
nor C3, adjust the code accordingly.
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Jasper Lake, like Elkhart Lake, uses a Tremont CPU.
So reuse the code.
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
From a turbostat point of view, Ice Lake server looks like Sky Lake server.
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
From a turbostat point of view, Tiger Lake looks like Ice Lake.
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Warning: ‘__builtin_strncpy’ specified bound 20 equals destination size
[-Wstringop-truncation]
reduce param to strncpy, to guarantee that a null byte is always copied
into destination buffer.
Signed-off-by: Len Brown <len.brown@intel.com>
From a turbostat point of view, Cometlake is like Kabylake.
Suggested-by: Rui Zhang <rui.zhang@intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Building cpupower with -fno-common in CFLAGS results in errors due to
multiple definitions of the 'cpu_count' and 'start_time' variables.
./utils/idle_monitor/snb_idle.o:./utils/idle_monitor/cpupower-monitor.h:28:
multiple definition of `cpu_count';
./utils/idle_monitor/nhm_idle.o:./utils/idle_monitor/cpupower-monitor.h:28:
first defined here
...
./utils/idle_monitor/cpuidle_sysfs.o:./utils/idle_monitor/cpuidle_sysfs.c:22:
multiple definition of `start_time';
./utils/idle_monitor/amd_fam14h_idle.o:./utils/idle_monitor/amd_fam14h_idle.c:85:
first defined here
The -fno-common option will be enabled by default in GCC 10.
Bug: https://bugs.gentoo.org/707462
Signed-off-by: Mike Gilbert <floppym@gentoo.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
For the command
"intel-speed-select perf-profile info":
There are two instances of “speed-select-turbo-freq” underneath
“perf-profile-level-0” for each package. When we load the output into
python with json.load(), the second instance overwrites the first.
Result is that we can only access:
"speed-select-turbo-freq": {
"bucket-0": {
"high-priority-cores-count": "2",
"high-priority-max-frequency(MHz)": "3000",
"high-priority-max-avx2-frequency(MHz)": "2800",
"high-priority-max-avx512-frequency(MHz)": "2600"
},
Because it is a duplicate of "speed-select-turbo-freq": "disabled"
Same is true for "speed-select-base-freq".
To avoid this add "-properties" suffix for the second instance to
differentiate.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
When mailbox command for the turbo-freq enable fails, then don't display
result for auto-mode. When turbo-freq enable fails, there is no point
to set CPU priorities.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Prevent cpufreq from creating excessively large stack frames and fix
the handling of devices deleted during system-wide resume in the PM
core (Rafael Wysocki), revert a problematic commit affecting the
cpupower utility and correct its man page (Thomas Renninger,
Brahadambal Srinivasan), and improve the intel_pstate_tracer
utility (Doug Smythies).
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Merge tag 'pm-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power manadement updates from Rafael Wysocki:
"Prevent cpufreq from creating excessively large stack frames and fix
the handling of devices deleted during system-wide resume in the PM
core (Rafael Wysocki), revert a problematic commit affecting the
cpupower utility and correct its man page (Thomas Renninger,
Brahadambal Srinivasan), and improve the intel_pstate_tracer utility
(Doug Smythies)"
* tag 'pm-5.6-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
tools/power/x86/intel_pstate_tracer: change several graphs to autoscale y-axis
tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility
Correction to manpage of cpupower
cpufreq: Avoid creating excessively large stack frames
PM: core: Fix handling of devices deleted during system-wide resume
cpupower: Revert library ABI changes from commit ae2917093f
Processors have exceeded some of the fixed y-axis scale maximum values.
Change them to autoscale the y-axis.
Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Some syntax needs to be more rigorous for python 3.
Backwards compatibility tested with python 2.7
Signed-off-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This cpupower update for Linux 5.6-rc1 consists of a revert from
Thomas Renninger and a manpage correction from Brahadambal Srinivasan.
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Merge tag 'linux-cpupower-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull cpupower utility updates for v5.6 from Shuah Khan:
"This cpupower update for Linux 5.6-rc1 consists of a revert
from Thomas Renninger and a manpage correction from Brahadambal
Srinivasan."
* tag 'linux-cpupower-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
Correction to manpage of cpupower
cpupower: Revert library ABI changes from commit ae2917093f
Pull x86 cpu-features updates from Ingo Molnar:
"The biggest change in this cycle was a large series from Sean
Christopherson to clean up the handling of VMX features. This both
fixes bugs/inconsistencies and makes the code more coherent and
future-proof.
There are also two cleanups and a minor TSX syslog messages
enhancement"
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86/cpu: Remove redundant cpu_detect_cache_sizes() call
x86/cpu: Print "VMX disabled" error message iff KVM is enabled
KVM: VMX: Allow KVM_INTEL when building for Centaur and/or Zhaoxin CPUs
perf/x86: Provide stubs of KVM helpers for non-Intel CPUs
KVM: VMX: Use VMX_FEATURE_* flags to define VMCS control bits
KVM: VMX: Check for full VMX support when verifying CPU compatibility
KVM: VMX: Use VMX feature flag to query BIOS enabling
KVM: VMX: Drop initialization of IA32_FEAT_CTL MSR
x86/cpufeatures: Add flag to track whether MSR IA32_FEAT_CTL is configured
x86/cpu: Set synthetic VMX cpufeatures during init_ia32_feat_ctl()
x86/cpu: Print VMX flags in /proc/cpuinfo using VMX_FEATURES_*
x86/cpu: Detect VMX features on Intel, Centaur and Zhaoxin CPUs
x86/vmx: Introduce VMX_FEATURES_*
x86/cpu: Clear VMX feature flag if VMX is not fully enabled
x86/zhaoxin: Use common IA32_FEAT_CTL MSR initialization
x86/centaur: Use common IA32_FEAT_CTL MSR initialization
x86/mce: WARN once if IA32_FEAT_CTL MSR is left unlocked
x86/intel: Initialize IA32_FEAT_CTL MSR at boot
tools/x86: Sync msr-index.h from kernel sources
selftests, kvm: Replace manual MSR defs with common msr-index.h
...
- Update the ACPICA code in the kernel to upstream revision
20200110 including:
* Update of copyright notices to 2020 (Bob Moore).
* Dispatcher fix to always generate buffer objects for the ASL
create_field() operator (Maximilian Luz).
* Debugger cleanup (Colin Ian King).
* Disassembler change to create buffer fields in
ACPI_PARSE_LOAD_PASS1 (Erik Kaneda).
* UNIX line ending support for non-windows builds in acpisrc
(Erik Kaneda).
- Update the list of ACPICA maintainers (Rafael Wysocki).
- Add Intel Tiger Lake ACPI device IDs to the ACPI DPTF, ACPI fan,
int340x_thermal and intel-hid drivers (Gayatri Kammela).
- Make the ACPI fan driver create additional sysfs attributes to
expose power states information for fans (Srinivas Pandruvada).
- Fix up the ACPI battery driver to deal with unexpected battery
capacity information in a better way (Hans de Goede).
- Add ACPI backlight quirks for Lenovo E41-25/45 and MSI MS-7721
boards (Aaron Ma, Hans de Goede).
- Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch
to the ACPI button driver (Jason Ekstrand).
- Drop TIMER_DEFERRABLE from the GHES polling mode timer function
flags to make it run precisely at the configured time (Bhaskar
Upadhaya).
- Fix race condition related to the reference counting of query
handlers in the ACPI EC driver (Rafael Wysocki).
- Fix ACPI tools build issue (Zhengyuan Liu).
- Replace dma_request_slave_channel() with dma_request_chan() in the
firmware guide documentation for ACPI (Peter Ujfalusi).
- Fix typo in a comment and clean up function parameter data type
inconsistencies (Kacper Piwiński, Tian Tao).
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Merge tag 'acpi-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These update the ACPICA code in the kernel to the most recent upstream
revision (20200110), add new hardware support to a handful of ACPI
drivers, make the ACPI fan driver expose power states information for
fans, add some more quirks, fix bugs and clean up assorted things.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20200110
including:
- Update of copyright notices to 2020 (Bob Moore).
- Dispatcher fix to always generate buffer objects for the ASL
create_field() operator (Maximilian Luz).
- Debugger cleanup (Colin Ian King).
- Disassembler change to create buffer fields in
ACPI_PARSE_LOAD_PASS1 (Erik Kaneda).
- UNIX line ending support for non-windows builds in acpisrc (Erik
Kaneda).
- Update the list of ACPICA maintainers (Rafael Wysocki).
- Add Intel Tiger Lake ACPI device IDs to the ACPI DPTF, ACPI fan,
int340x_thermal and intel-hid drivers (Gayatri Kammela).
- Make the ACPI fan driver create additional sysfs attributes to
expose power states information for fans (Srinivas Pandruvada).
- Fix up the ACPI battery driver to deal with unexpected battery
capacity information in a better way (Hans de Goede).
- Add ACPI backlight quirks for Lenovo E41-25/45 and MSI MS-7721
boards (Aaron Ma, Hans de Goede).
- Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch to
the ACPI button driver (Jason Ekstrand).
- Drop TIMER_DEFERRABLE from the GHES polling mode timer function
flags to make it run precisely at the configured time (Bhaskar
Upadhaya).
- Fix race condition related to the reference counting of query
handlers in the ACPI EC driver (Rafael Wysocki).
- Fix ACPI tools build issue (Zhengyuan Liu).
- Replace dma_request_slave_channel() with dma_request_chan() in the
firmware guide documentation for ACPI (Peter Ujfalusi).
- Fix typo in a comment and clean up function parameter data type
inconsistencies (Kacper Piwiński, Tian Tao)"
* tag 'acpi-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (25 commits)
ACPICA: Update version to 20200110
ACPICA: All acpica: Update copyrights to 2020 Including tool signons.
apei/ghes: Do not delay GHES polling
ACPI: button: Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch
ACPI: PPTT: Consistently use unsigned int as parameter type
ACPI: EC: Reference count query handlers under lock
ACPICA: Update the list of maintainers
ACPICA: Update version to 20191213
ACPICA: Dispatcher: always generate buffer objects for ASL create_field() operator
ACPICA: acpisrc: add unix line ending support for non-windows build
ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1
ACPICA: debugger: fix spelling mistake "adress" -> "address"
ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards
docs: firmware-guide: ACPI: Replace dma_request_slave_channel() with dma_request_chan()
thermal: int340x_thermal: Add Tiger Lake ACPI device IDs
platform/x86: intel-hid: Add Tiger Lake ACPI device ID
ACPI: fan: Add Tiger Lake ACPI device ID
ACPI: DPTF: Add Tiger Lake ACPI device IDs
ACPI: fan: Expose fan performance state information
tools/power/acpi: fix compilation error
...
Manpage of cpupower is listing wrong sub-commands in "See Also"
section. The option for cpupower-idle(1) should actually be
cpupower-idle-info(1) and cpupower-idle-set(1). This patch corrects
this anomaly.
Signed-off-by: Brahadambal Srinivasan <latha@linux.vnet.ibm.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
As we added new set of mailbox commands, increment version.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
In turbo-freq or base-freq auto mode, for disable, first disable the feature and
then disable clos.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The turbo-freq enable with auto mode, prints result for the last possible
CPU, which is not correct when either CPU is not present or user wants
command to be limited to a single die/package. For example, in the
below command user wants to limit to die/package 0, but the
"turbo-freq --auto" result is displayed using the other package.
$ sudo intel-speed-select -c 0 turbo-freq enable -a
Intel(R) Speed Select Technology
package-0
die-0
cpu-0
turbo-freq
enable:success
package--1
die-0
cpu-31
turbo-freq --auto
enable:success
Since we do have to traverse all CPUs, don't display CPU info for
"turbo-freq --auto", as we already displayed the result for
turbo-freq enable with the CPU information.
With the fix, the same command results in:
$ sudo intel-speed-select -c 0 turbo-freq enable -a
Intel(R) Speed Select Technology
package-0
die-0
cpu-0
turbo-freq
enable:success
turbo-freq --auto
enable:success
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
It is possible that BIOS may not enable core-power feature. In this case
this additional interface will allow to enable from this utility. Also
the information dump, includes the current status of core-power.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Commit ae2917093f ("tools/power/cpupower: Display boost frequency
separately") modified the library function:
struct cpufreq_available_frequencies
*cpufreq_get_available_frequencies(unsigned int cpu)
to
struct cpufreq_frequencies
*cpufreq_get_frequencies(const char *type, unsigned int cpu)
This patch recovers the old API and implements the new functionality
in a newly introduce method:
struct cpufreq_boost_frequencies
*cpufreq_get_available_frequencies(unsigned int cpu)
This one should get merged into stable kernels back to 5.0 when
the above had been introduced.
Fixes: ae2917093f ("tools/power/cpupower: Display boost frequency separately")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Sync msr-index.h to pull in recent renames of the IA32_FEATURE_CONTROL
MSR definitions. Update KVM's VMX selftest and turbostat accordingly.
Keep the full name in turbostat's output to avoid breaking someone's
workflow, e.g. if a script is looking for the full name.
While using the renamed defines is by no means necessary, do the sync
now to avoid leaving a landmine that will get stepped on the next time
msr-index.h needs to be refreshed for some other reason.
No functional change intended.
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20191221044513.21680-4-sean.j.christopherson@intel.com
ACPICA commit 8b9c69d0984067051ffbe8526f871448ead6a26b
Link: https://github.com/acpica/acpica/commit/8b9c69d0
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
If we compile tools/acpi target in the top source directory, we'd get a
compilation error showing as bellow:
# make tools/acpi
DESCEND power/acpi
DESCEND tools/acpidbg
CC tools/acpidbg/acpidbg.o
Assembler messages:
Fatal error: can't create /home/lzy/kernel-upstream/power/acpi/\
tools/acpidbg/acpidbg.o: No such file or directory
../../Makefile.rules:26: recipe for target '/home/lzy/kernel-upstream/\
power/acpi/tools/acpidbg/acpidbg.o' failed
make[3]: *** [/home/lzy/kernel-upstream//power/acpi/tools/acpidbg/\
acpidbg.o] Error 1
Makefile:19: recipe for target 'acpidbg' failed
make[2]: *** [acpidbg] Error 2
Makefile:54: recipe for target 'acpi' failed
make[1]: *** [acpi] Error 2
Makefile:1607: recipe for target 'tools/acpi' failed
make: *** [tools/acpi] Error 2
Fixes: d5a4b1a540 ("tools/power/acpi: Remove direct kernel source include reference")
Signed-off-by: Zhengyuan Liu <liuzhengyuan@kylinos.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* New bootctl driver for Mellanox BlueField SoC.
* New driver to support System76 laptops.
* Temperature monitoring and fan control on Acer Aspire 7551
is now supported.
* Previously the Huawei driver handled only hotkeys.
After the conversion to WMI it has been expanded
to support newer laptop models.
* Big refactoring of intel-speed-select tools allows to
use it on Intel CascadeLake-N systems.
* Touchscreen support for ezpad 6 m4 and
Schneider SCT101CTM tablets
* Miscellaneous clean ups and fixes here and there.
The following is an automated git shortlog grouped by driver:
acerhdf:
- Add support for Acer Aspire 7551
- Rename Peter Feuerer to Peter Kaestle
Add System76 ACPI driver:
- Add System76 ACPI driver
asus-laptop:
- switch to using polled mode of input devices
classmate-laptop:
- remove unused variable
dell-laptop:
- disable kbd backlight on Inspiron 10xx
hdaps:
- switch to using polled mode of input devices
hp-wmi:
- Fix ACPI errors caused by passing 0 as input size
- Fix ACPI errors caused by too small buffer
huawei-wmi:
- Remove unnecessary battery mutex
- No need to check for battery name
- Stricter battery thresholds set
- Fix a precision vs width printf bug
- Avoid use of global variable when possible
- No need to keep pointer to platform device
- Don't leak memory on the exit
- huawei_wmi can be static
- Add debugfs support
- Add fn-lock support
- Add battery charging thresholds
- Implement huawei wmi management
- Add quirks and module parameters
- Move to platform driver
i2c-multi-instantiate:
- Fail the probe if no IRQ provided
intel_cht_int33fe:
- Split code to Micro-B and Type-C
intel_int0002_vgpio:
- Pass irqchip when adding gpiochip
intel_pmc_core:
- Add Comet Lake (CML) platform support to intel_pmc_core driver
- Fix the SoC naming inconsistency
intel_punit_ipc:
- Drop useless label
- use devm_platform_ioremap_resource() to simplify code
- Avoid error message when retrieving IRQ
peaq-wmi:
- switch to using polled mode of input devices
platform/mellanox:
- Fix Kconfig indentation
- Add bootctl driver for Mellanox BlueField Soc
tools/power/x86/intel-speed-select:
- Display TRL buckets for just base config level
- Ignore missing config level
- Increment version
- Use core count for base-freq mask
- Support platform with limited Intel(R) Speed Select
- Use Frequency weight for CLOS
- Make CLOS frequency in MHz
- Use mailbox for CLOS_PM_QOS_CONFIG
- Auto mode for CLX
- Correct CLX-N frequency units
- Change display of "avx" to "avx2"
- Extend command set for perf-profile
- Implement base-freq commands on CascadeLake-N
- Implement 'perf-profile info' on CascadeLake-N
- Implement CascadeLake-N help and command functions structures
- Add check for CascadeLake-N models
- Make process_command generic
- Add int argument to command functions
- Refuse to disable core-power when getting used
- Turbo-freq feature auto mode
- Base-freq feature auto mode
- Remove warning for unused result
toshiba_acpi:
- do not select INPUT_POLLDEV
touchscreen_dmi:
- Add info for the ezpad 6 m4 tablet
- Add touchscreen platform data for the Schneider SCT101CTM tablet
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Merge tag 'platform-drivers-x86-v5.5-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver updates from Andy Shevchenko:
- New bootctl driver for Mellanox BlueField SoC.
- New driver to support System76 laptops.
- Temperature monitoring and fan control on Acer Aspire 7551 is now
supported.
- Previously the Huawei driver handled only hotkeys. After the
conversion to WMI it has been expanded to support newer laptop
models.
- Big refactoring of intel-speed-select tools allows to use it on Intel
CascadeLake-N systems.
- Touchscreen support for ezpad 6 m4 and Schneider SCT101CTM tablets
- Miscellaneous clean ups and fixes here and there.
* tag 'platform-drivers-x86-v5.5-1' of git://git.infradead.org/linux-platform-drivers-x86: (59 commits)
platform/x86: hp-wmi: Fix ACPI errors caused by passing 0 as input size
platform/x86: hp-wmi: Fix ACPI errors caused by too small buffer
platform/x86: intel_pmc_core: Add Comet Lake (CML) platform support to intel_pmc_core driver
platform/x86: intel_pmc_core: Fix the SoC naming inconsistency
platform/mellanox: Fix Kconfig indentation
tools/power/x86/intel-speed-select: Display TRL buckets for just base config level
tools/power/x86/intel-speed-select: Ignore missing config level
platform/x86: touchscreen_dmi: Add info for the ezpad 6 m4 tablet
tools/power/x86/intel-speed-select: Increment version
tools/power/x86/intel-speed-select: Use core count for base-freq mask
tools/power/x86/intel-speed-select: Support platform with limited Intel(R) Speed Select
tools/power/x86/intel-speed-select: Use Frequency weight for CLOS
tools/power/x86/intel-speed-select: Make CLOS frequency in MHz
tools/power/x86/intel-speed-select: Use mailbox for CLOS_PM_QOS_CONFIG
tools/power/x86/intel-speed-select: Auto mode for CLX
tools/power/x86/intel-speed-select: Correct CLX-N frequency units
tools/power/x86/intel-speed-select: Change display of "avx" to "avx2"
tools/power/x86/intel-speed-select: Extend command set for perf-profile
Add touchscreen platform data for the Schneider SCT101CTM tablet
platform/x86: intel_int0002_vgpio: Pass irqchip when adding gpiochip
...
When only base config level is present, this tool is displaying TRL
(Turbo-ratio-limits) by reading legacy MSR. In this case, also present
core count for TRL by reading MSR 0x1AE.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
It is possible that certain config levels are not available, even
if the max level includes the level. There can be missing levels in
some platforms. So ignore the level when called for information dump
for all levels and fail if specifically ask for the missing level.
Here the changes is to continue reading information about other levels
even if we fail to get information for the current level. But use the
"processed" flag to indicate the failure. When the "processed" flag is
not set, don't dump information about that level.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Since the tool now adds support for another Intel SST implementation,
increment version number.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Some firmware implementation gives error when a command is sent get mask
for core count 32-61. So use core count to decide.
But there is no function to get core count. So introduce one function to
get core count.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There are some platforms, where there limited support of Intel(R) SST
features. Here perf-profile has only one base configuration and limited
support of commands. But still has support for discovery of base-freq and
turbo-freq features. So it is important to show minimum features to use
base-freq and turbo-freq features.
Here the change are:
- When there is no support of CONFIG_TDP_GET_LEVELS_INFO, then instead
of treating this as fatal error, treat this with number of config levels
= 0, that means only base level 0 is present.
- There is no support of mail box commands to get base frequencies or
turbo frequencies. Here present base frequency by reading cpufreq
base freq and turbo frequency by reading MSR 0x1AD.
- Don't display any field, which has value == 0.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use different frequency weights for CLOS 0 and and CLOS1-3, to define
relative priority for power budgeting. This will be used for --auto
mode to enable base-freq and turbo-freq feature.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To be consistant with the other frequency units, change the CLOS
unit to MHz instead of ratios.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Use mailbox to read/write CLOS_PM_QOS_CONFIG instead of read/write to
MMIO offset.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
There is an expectation in the CLX platform for SST base-freq feature that
Scaling min frequency be different for high and low priority cores.
This is the way the firmware will understand the priority.
So this change will look at high priority and low priority cores, and set
scaling_min_freq to P1High for high priority cores and P1Low to low
priority cores.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
In CLX_N base_frequency is read from cpufreq sysfs, where units are in
KHz. The internal units in the code matches the real ratios which are
in 100MHz scale. So when storing units for CLX-N frequencies, convert
to 100MHz scale.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Make the avx level display consistent. Except for "turbo-ratio-limits-avx",
everywhere else it is avx2. So change "turbo-ratio-limits-avx"
to "turbo-ratio-limits-avx2".
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Add support for uncore P0, uncore P1, P1 for base and AVX levels and
memory frequency. These commands are optional, so continue on
failure.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Based on Thomas Renninger's feedback/ideas. Re-structure the code
to better handle the per_cpu_schedule mechanism which was introduced
when adding support for AMD Zen based processors.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
AMD Zen 2 introduces the RDPRU instruction which can be used to access some
processor registers which are typically only accessible in privilege level
0. ECX specifies the register to read and EDX:EAX will contain the value read.
ECX: 0 - Register MPERF
1 - Register APERF
This has the added advantage of not having to use the msr module, since the
userspace to kernel transitions which occur during each read_msr() might
cause APERF and MPERF to go out of sync.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
The per_cpu_schedule flag is used to move the cpupower process to the cpu
on which we are looking to read the APERF/MPERF registers.
This prevents IPIs from being generated by read_msr()s as we are already
on the cpu of interest.
Ex: If cpupower is running on CPU 0 and we execute
read_msr(20, MSR_APERF, val) then,
read_msr(20, MSR_MPERF, val)
the msr module will generate an IPI from CPU 0 to CPU 20 to query
for the MSR_APERF and then the MSR_MPERF in separate IPIs.
This delay, caused by IPI latency, between reading the APERF and MPERF
registers may cause both of them to go out of sync.
The use of the per_cpu_schedule flag reduces the probability of this
from happening. It comes at the cost of a negligible increase in cpu
consumption caused by the migration of cpupower across each of the
cpus of the system.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Move the needs_root variable into a sub-struct. This is in preparation
for adding a new flag for cpuidle_monitor.
Update all uses of the needs_root variable to reflect this change.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Cpupower tool has set and info options which are being used only by
x86 machines. This patch removes support for these two subcommands
from cpupower utility for POWER. Thus, these two subcommands will now be
available only for intel.
This removes the ambiguous error message while using set option in case
of using non-intel systems.
Without this patch on a POWER system:
root@ubuntu:~# cpupower info
System does not support Intel's performance bias setting
root@ubuntu:~# cpupower set -b 10
Error setting perf-bias value on CPU
With this patch on a POWER box:
root@ubuntu:~# cpupower info
Subcommand not supported on POWER
Same result for set subcommand.
This patch does not affect results on a intel box.
Signed-off-by: Abhishek Goel <huntbag@linux.vnet.ibm.com>
Acked-by: Thomas Renninger <trenn@suse.de>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Add functionality for base-freq info|enable|disable info on CascadeLake-N.
Sample output:
Intel(R) Speed Select Technology
Executing on CPU model:85[0x55]
package-0
die-0
cpu-0
speed-select-base-freq
high-priority-base-frequency(MHz):2700000
high-priority-cpu-mask:00000000,0000e8c0
high-priority-cpu-list:6,7,11,13,14,15
low-priority-base-frequency(MHz):2100000
package-1
die-0
cpu-20
speed-select-base-freq
high-priority-base-frequency(MHz):2700000
high-priority-cpu-mask:0000000e,8c000000
high-priority-cpu-list:26,27,31,33,34,35
low-priority-base-frequency(MHz):2100000
The enable command always returns success, and the disable command always
returns failed because SST-BF cannot be enabled or disabled from the OS on
CascadeLake-N.
Enable command also have support for --auto|-a option, which sets cpufreq
scaling_min to max, so that the high priority base frequency can be the
required minimum for high priority cores. Disable command with -a/--auto
option reset the setting back to the min frequency.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
CascadeLake-N only supports SST-BF and needs some of the perf-profile
commands, and the base-freq commands.
Add help functions, and create an empty command structures (the functions
will be implemented later in this patchset). Call these functions
when running on CascadeLake-N.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Three CascadeLake-N models (6252N, 6230N, and 5218N) have SST-PBF support.
Return an error if the CascadeLake processor is not one of these specific
models.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Make the process_command take any help command and command list. This
will make it easier to help commands and a command list for CascadeLake-N.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The current code structure has similar but separate command functions for
the enable and disable operations. This can be improved by adding an int
argument to the command function structure, and interpreting 1 as enable
and 0 as disable. This change results in the removal of the disable
command functions.
Add int argument to the command function structure.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The turbo-freq feature is dependent on the core-power feature. If the
core-power feature is disabled while the turbo-freq feature is enabled,
this will break the turbo-freq feature. This is a firmware limitation,
where they can't return error under this scenario.
So when trying to disable core-power, make sure that the turbo-freq
feature is not enabled. If it enabled, return error if user is trying to
disable the core-power feature.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Introduce --auto|-a option to turbo-freq enable feature, so that it
does in one step for users who are OK by setting all passed target cores
as high priority and set in CLOS 0 and remaining in CLOS 3. In this way,
users don't have to take multiple steps to enable turbo-freq feature. For
users who want more fine grain control, they can always use core-power
feature to set custom CLOS configuration and assignment.
While here also print the error to output when clos configuration fails.
For example
intel-speed-select -c 0-4 turbo-freq enable --auto
The above command will enable turbo-freq and core-power feature. Also
mark CPU 0 to CPU 4 as high priority.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Introduce --auto|-a option to base-freq enable feature, so that it
does in one step for users who are OK by setting all cores with higher
base frequency to be set in CLOS 0 and remaining in CLOS 3. This option
also sets corresponding clos.min to CLOS 0 and CLOS3. In this way, users
don't have to take multiple steps to enable base-freq feature. For users
who want more fine grain control, they can always use core-power feature
to set custom CLOS configuration and assignment.
Also adjust cpufreq/scaling_min_freq for higher and lower priority cores.
For example user can use:
intel-speed-select base-freq enable --auto
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fix warning for:
isst-config.c: In function ‘set_cpu_online_offline’:
isst-config.c:221:3: warning: ignoring return value of ‘write’,
declared with attribute warn_unused_result [-Wunused-result]
write(fd, "1\n", 2);
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
When building cpupower with clang, the following warning appears:
utils/idle_monitor/hsw_ext_idle.c:42:16: warning: initializer overrides
prior initialization of this subobject [-Winitializer-overrides]
.desc = N_("Processor Package C2"),
^~~~~~~~~~~~~~~~~~~~~~
./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
#define N_(String) gettext_noop(String)
^~~~~~
./utils/helpers/helpers.h:23:30: note: expanded from macro
'gettext_noop'
#define gettext_noop(String) String
^~~~~~
utils/idle_monitor/hsw_ext_idle.c:41:16: note: previous initialization
is here
.desc = N_("Processor Package C9"),
^~~~~~~~~~~~~~~~~~~~~~
./utils/helpers/helpers.h:25:33: note: expanded from macro 'N_'
#define N_(String) gettext_noop(String)
^~~~~~
./utils/helpers/helpers.h:23:30: note: expanded from macro
'gettext_noop'
#define gettext_noop(String) String
^~~~~~
1 warning generated.
This appears to be a copy and paste or merge mistake because the name
and id fields both have PC9 in them, not PC2. Remove the second
assignment to fix the warning.
Fixes: 7ee767b69b ("cpupower: Add Haswell family 0x45 specific idle monitor to show PC8,9,10 states")
Link: https://github.com/ClangBuiltLinux/linux/issues/718
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
* Fix compilation error of ASUS WMI driver when CONFIG_ACPI_BATTERY=n.
* Fix I²C multi-instantiate driver to work with several USB PD devices.
* Fix boot issue on Siemens SIMATIC IPC277E when PMC critical clock is
being disabled.
* Plenty of fixes to Intel Speed-Select Technology tools.
The following is an automated git shortlog grouped by driver:
asus-wmi:
- Make it depend on ACPI battery API
i2c-multi-instantiate:
- Derive the device name from parent
pmc_atom:
- Add Siemens SIMATIC IPC277E to critclk_systems DMI table
tools/power/x86/intel-speed-select:
- Fix perf-profile command output
- Extend core-power command set
- Fix some debug prints
- Format get-assoc information
- Allow online/offline based on tdp
- Fix high priority core mask over count
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Merge tag 'platform-drivers-x86-v5.4-2' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform-drivers fixes from Andy Shevchenko:
- Fix compilation error of ASUS WMI driver when CONFIG_ACPI_BATTERY=n
- Fix I²C multi-instantiate driver to work with several USB PD devices
- Fix boot issue on Siemens SIMATIC IPC277E when PMC critical clock is
being disabled
- Plenty of fixes to Intel Speed-Select Technology tools
* tag 'platform-drivers-x86-v5.4-2' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: i2c-multi-instantiate: Derive the device name from parent
platform/x86: pmc_atom: Add Siemens SIMATIC IPC277E to critclk_systems DMI table
tools/power/x86/intel-speed-select: Fix perf-profile command output
tools/power/x86/intel-speed-select: Extend core-power command set
tools/power/x86/intel-speed-select: Fix some debug prints
tools/power/x86/intel-speed-select: Format get-assoc information
tools/power/x86/intel-speed-select: Allow online/offline based on tdp
tools/power/x86/intel-speed-select: Fix high priority core mask over count
platform/x86: asus-wmi: Make it depend on ACPI battery API
commit "c016ae8f9fa04d361efc8629de49ad3af12b5262
"tools/power/x86/intel-speed-select: Output success/failed for command
output" introduced a regression in perf-profile outputs. With this
the result field is changed to string interpreting every non zero
value as errors. But these commands display on zero (>0) result.
For example before this commit the display was:
package-1
die-0
cpu-14
get-config-levels:4
Here the get-config-levels is interpreted as error and displayed
as error with the above commit:
package-1
die-0
cpu-14
get-config-levels:failed(error 4)
Fix this issue by not using isst_display_result() to display such results,
but define a new function which formats this data and prints.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Add additional command to get the clos enable and priority type. The
current info option is actually dumping per clos QOS config, so name
the command appropriately to get-config.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fix wrong debug print for cpu, which is displayed as CLOS. Also
avoid printing clos id, when user is specify clos as parameter.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Format the get-assoc command output consistant with other commands.
For example:
Intel(R) Speed Select Technology
Executing on CPU model:142[0x8e]
package-0
die-0
cpu-0
get-assoc
clos:0
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Using enable core mask, do online offline CPUs. There is a new option
--online|-o for set-config-level.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
If the CPU package has the less logical CPU than topo_max_cpus, but un-present
CPU's punit_cpu_core will be initiated to 0 and they will be count to core 0
Like below, there are only 10 high priority cores (20 logical CPUs) in the CPU
package, but it count to 27 logic CPUs.
./intel-speed-select base-freq info -l 0 | grep mask
high-priority-cpu-mask:7f000179,f000179f
With the fix patch:
./intel-speed-select base-freq info -l 0
high-priority-cpu-mask:00000179,f000179f
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
- Update the ACPICA code in the kernel to upstream revision 20190816
including:
* Internal limits change to support larger systems (Bob Moore).
* Macros clean up (Bob Moore).
* printf format string fixes (Bob Moore).
* Full deployment of the ACPI_PRINTF_LIKE macro (Bob Moore).
* Tools improvements (Bob Moore, Colin Ian King).
* Windows _OSI support fixes (Jung-uk Kim).
- Improve memory hot-add support in the ACPI HMAT handling code (Dan
Williams, Keith Busch).
- Fix the ACPI LPSS (Low-Power Subsystem) driver for Intel SoCs to
save and restore private registers during system-wide suspend and
resume on systems with the Lynxpoint PCH (Jarkko Nikula).
- Convert the ACPI documentation related to LEDs to ReST (Sakari
Ailus).
- Fix assorted issues and make assorted minor improvements in the
ACPI-related code (Al Stone, Andy Shevchenko, Jiri Slaby, Kelsey
Skunberg, Krzysztof Wilczynski, Liguang Zhang, Wenwen Wang,
YueHaibing).
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Merge tag 'acpi-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"These include an ACPICA update (to upstream revision 20190816),
improvements of support for memory hot-add in the HMAT handling code
and some assorted fixes and cleanups.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20190816
including:
* Internal limits change to support larger systems (Bob Moore).
* Macros clean up (Bob Moore).
* printf format string fixes (Bob Moore).
* Full deployment of the ACPI_PRINTF_LIKE macro (Bob Moore).
* Tools improvements (Bob Moore, Colin Ian King).
* Windows _OSI support fixes (Jung-uk Kim).
- Improve memory hot-add support in the ACPI HMAT handling code (Dan
Williams, Keith Busch).
- Fix the ACPI LPSS (Low-Power Subsystem) driver for Intel SoCs to
save and restore private registers during system-wide suspend and
resume on systems with the Lynxpoint PCH (Jarkko Nikula).
- Convert the ACPI documentation related to LEDs to ReST (Sakari
Ailus).
- Fix assorted issues and make assorted minor improvements in the
ACPI-related code (Al Stone, Andy Shevchenko, Jiri Slaby, Kelsey
Skunberg, Krzysztof Wilczynski, Liguang Zhang, Wenwen Wang,
YueHaibing)"
* tag 'acpi-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
ACPI / PCI: fix acpi_pci_irq_enable() memory leak
ACPI: custom_method: fix memory leaks
ACPI: thermal: Remove redundant acpi_has_method() calls
ACPI / CPPC: do not require the _PSD method
ACPI: SBS: remove unused const variable 'SMBUS_PEC'
ACPI / LPSS: Save/restore LPSS private registers also on Lynxpoint
ACPI/PCI: Remove surplus parentheses from a return statement
ACPICA: Update version to 20190816.
ACPICA: Add "Windows 2019" string to _OSI support.
ACPICA: Differentiate Windows 8.1 from Windows 8.
ACPICA: Fully deploy ACPI_PRINTF_LIKE macro
ACPICA: iASL,acpi_dump: Improve y/n query
ACPICA: Fix issues with arg types within printf format strings
ACPICA: Macros: remove pointer math on a null pointer
ACPICA: Increase total number of possible Owner IDs
ACPICA: Debugger: remove redundant assignment on obj_desc
Documentation: ACPI: DSD: Convert LED documentation to ReST
ACPI / APEI: Release resources if gen_pool_add() fails
HMAT: Skip publishing target info for nodes with no online memory
HMAT: Register attributes for memory hot add
...
- Rework the main suspend-to-idle control flow to avoid repeating
"noirq" device resume and suspend operations in case of spurious
wakeups from the ACPI EC and decouple the ACPI EC wakeups support
from the LPS0 _DSM support (Rafael Wysocki).
- Extend the wakeup sources framework to expose wakeup sources as
device objects in sysfs (Tri Vo, Stephen Boyd).
- Expose system suspend statistics in sysfs (Kalesh Singh).
- Introduce a new haltpoll cpuidle driver and a new matching
governor for virtualized guests wanting to do guest-side polling
in the idle loop (Marcelo Tosatti, Joao Martins, Wanpeng Li,
Stephen Rothwell).
- Fix the menu and teo cpuidle governors to allow the scheduler tick
to be stopped if PM QoS is used to limit the CPU idle state exit
latency in some cases (Rafael Wysocki).
- Increase the resolution of the play_idle() argument to microseconds
for more fine-grained injection of CPU idle cycles (Daniel Lezcano).
- Switch over some users of cpuidle notifiers to the new QoS-based
frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
policy notifier events (Viresh Kumar).
- Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).
- Add support for MT8183 and MT8516 to the mediatek cpufreq driver
(Andrew-sh.Cheng, Fabien Parent).
- Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
Huang).
- Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).
- Update the qcom cpufreq driver (among other things, to make it
easier to extend and to use kryo cpufreq for other nvmem-based
SoCs) and add qcs404 support to it (Niklas Cassel, Douglas
RAILLARD, Sibi Sankar, Sricharan R).
- Fix assorted issues and make assorted minor improvements in the
cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
Gustavo Silva, Hariprasad Kelam).
- Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
Bergmann).
- Add new Exynos PPMU events to devfreq events and extend that
mechanism (Lukasz Luba).
- Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).
- Improve devfreq documentation and governor code, fix spelling
typos in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard
Crestez, MyungJoo Ham, Gaël PORTAY).
- Add regulators enable and disable to the OPP (operating performance
points) framework (Kamil Konieczny).
- Update the OPP framework to support multiple opp-suspend properties
(Anson Huang).
- Fix assorted issues and make assorted minor improvements in the OPP
code (Niklas Cassel, Viresh Kumar, Yue Hu).
- Clean up the generic power domains (genpd) framework (Ulf Hansson).
- Clean up assorted pieces of power management code and documentation
(Akinobu Mita, Amit Kucheria, Chuhong Yuan).
- Update the pm-graph tool to version 5.5 including multiple fixes
and improvements (Todd Brandt).
- Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
Sébastien Szymanski).
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Merge tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These include a rework of the main suspend-to-idle code flow (related
to the handling of spurious wakeups), a switch over of several users
of cpufreq notifiers to QoS-based limits, a new devfreq driver for
Tegra20, a new cpuidle driver and governor for virtualized guests, an
extension of the wakeup sources framework to expose wakeup sources as
device objects in sysfs, and more.
Specifics:
- Rework the main suspend-to-idle control flow to avoid repeating
"noirq" device resume and suspend operations in case of spurious
wakeups from the ACPI EC and decouple the ACPI EC wakeups support
from the LPS0 _DSM support (Rafael Wysocki).
- Extend the wakeup sources framework to expose wakeup sources as
device objects in sysfs (Tri Vo, Stephen Boyd).
- Expose system suspend statistics in sysfs (Kalesh Singh).
- Introduce a new haltpoll cpuidle driver and a new matching governor
for virtualized guests wanting to do guest-side polling in the idle
loop (Marcelo Tosatti, Joao Martins, Wanpeng Li, Stephen Rothwell).
- Fix the menu and teo cpuidle governors to allow the scheduler tick
to be stopped if PM QoS is used to limit the CPU idle state exit
latency in some cases (Rafael Wysocki).
- Increase the resolution of the play_idle() argument to microseconds
for more fine-grained injection of CPU idle cycles (Daniel
Lezcano).
- Switch over some users of cpuidle notifiers to the new QoS-based
frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
policy notifier events (Viresh Kumar).
- Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).
- Add support for MT8183 and MT8516 to the mediatek cpufreq driver
(Andrew-sh.Cheng, Fabien Parent).
- Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
Huang).
- Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).
- Update the qcom cpufreq driver (among other things, to make it
easier to extend and to use kryo cpufreq for other nvmem-based
SoCs) and add qcs404 support to it (Niklas Cassel, Douglas
RAILLARD, Sibi Sankar, Sricharan R).
- Fix assorted issues and make assorted minor improvements in the
cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
Gustavo Silva, Hariprasad Kelam).
- Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
Bergmann).
- Add new Exynos PPMU events to devfreq events and extend that
mechanism (Lukasz Luba).
- Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).
- Improve devfreq documentation and governor code, fix spelling typos
in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard Crestez,
MyungJoo Ham, Gaël PORTAY).
- Add regulators enable and disable to the OPP (operating performance
points) framework (Kamil Konieczny).
- Update the OPP framework to support multiple opp-suspend properties
(Anson Huang).
- Fix assorted issues and make assorted minor improvements in the OPP
code (Niklas Cassel, Viresh Kumar, Yue Hu).
- Clean up the generic power domains (genpd) framework (Ulf Hansson).
- Clean up assorted pieces of power management code and documentation
(Akinobu Mita, Amit Kucheria, Chuhong Yuan).
- Update the pm-graph tool to version 5.5 including multiple fixes
and improvements (Todd Brandt).
- Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
Sébastien Szymanski)"
* tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (126 commits)
cpuidle-haltpoll: Enable kvm guest polling when dedicated physical CPUs are available
cpuidle-haltpoll: do not set an owner to allow modunload
cpuidle-haltpoll: return -ENODEV on modinit failure
cpuidle-haltpoll: set haltpoll as preferred governor
cpuidle: allow governor switch on cpuidle_register_driver()
PM: runtime: Documentation: add runtime_status ABI document
pm-graph: make setVal unbuffered again for python2 and python3
powercap: idle_inject: Use higher resolution for idle injection
cpuidle: play_idle: Increase the resolution to usec
cpuidle-haltpoll: vcpu hotplug support
cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
cpufreq: qcom: Add support for qcs404 on nvmem driver
cpufreq: qcom: Refactor the driver to make it easier to extend
cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain
Documentation: cpufreq: Update policy notifier documentation
cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events
PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state()
PM / Domains: Simplify genpd_lookup_dev()
...
* ASUS WMI driver got couple of worth to mention updates, i.e. support of
FAN is fixed for recent products and the charge threshold support has been
added.
* Two uknown key events for Dell laptops are being ignored now to avoid spam
user with harmless messages.
* HP ZBook 17 G5 and ASUS Zenbook UX430UNR have got accelerometer support.
* Intel CherryTrail platforms got a regression with wake up. Now it's fixed.
* Intel PMC driver got fixed in order to work nicely in Xen environment.
* Intel Speed Select driver provides bucket vs core count relationship.
Besides that the tools has been updated for better output.
* The PrivacyGuard is enabled on Lenovo ThinkPad laptops.
* Three tablets, i.e. Trekstor Primebook C11B 2-in-1, Irbis TW90 and
Chuwi Surbook Mini, have got touchscreen support.
The following is an automated git shortlog grouped by driver:
acer-wmi:
- Switch to acpi_dev_get_first_match_dev()
asus-nb-wmi:
- Support ALS on the Zenbook UX430UNR
asus-wmi:
- Refactor charge threshold to use the battery hooking API
- Rename CHARGE_THRESHOLD to RSOC
- Reorder ASUS_WMI_CHARGE_THRESHOLD
- Fix condition in charge_threshold_store()
- Remove unnecessary blank lines
- Drop indentation level by inverting conditionals
- Use clamp_val() instead of open coded variant
- Replace sscanf() with kstrtoint()
- Refactor charge_threshold_store()
- Add support for charge threshold
- fix CPU fan control on recent products
- add a helper for device presence
- cleanup AGFN fan handling
- Use kmemdup rather than duplicating its implementation
compal-laptop:
- Initialize "value" in ec_read_u8()
dell-wmi:
- Use existing defined KBD_LED_* magic values
- Ignore keyboard backlight change KBD_LED_AUTO_TOKEN
- Ignore keyboard backlight change KBD_LED_ON_TOKEN
hp_accel:
- Add support for HP ZBook 17 G5
i2c-multi-instantiate:
- Use struct_size() helper
intel_bxtwc_tmu:
- Remove dev_err() usage after platform_get_irq()
intel_int0002_vgpio:
- Use device_init_wakeup
- Fix wakeups not working on Cherry Trail
- Remove dev_err() usage after platform_get_irq()
intel_pmc_core:
- Do not ioremap RAM
intel_pmc_core_pltdrv:
- Module removal warning fix
intel_pmc_ipc:
- Remove dev_err() usage after platform_get_irq()
ISST:
- Allow additional TRL MSRs
- Use dev_get_drvdata
MAINTAINERS:
- Switch PDx86 subsystem status to Odd Fixes
pcengines-apuv2:
- wire up simswitch gpio as led
- add mpcie reset gpio export
platform/mellanox:
- mlxreg-hotplug: Remove dev_err() usage after platform_get_irq()
pmc_atom:
- Add Siemens SIMATIC IPC227E to critclk_systems DMI table
thinkpad_acpi:
- Add ThinkPad PrivacyGuard
- Use kmemdup rather than duplicating its implementation
tools/power/x86/intel-speed-select:
- Display core count for bucket
- Fix memory leak
- Output success/failed for command output
- Output human readable CPU list
- Change turbo ratio output to maximum turbo frequency
- Switch output to MHz
- Simplify output for turbo-freq and base-freq
- Fix cpu-count output
- Fix help option typo
- Fix package typo
- Fix a read overflow in isst_set_tdp_level_msr()
touchscreen_dmi:
- Add info for the Trekstor Primebook C11B 2-in-1
- Add info for the Irbis TW90 tablet
- Add info for the Chuwi Surbook Mini tablet
wmi:
- Remove acpi_has_method() call
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Merge tag 'platform-drivers-x86-v5.4-1' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform-drivers updates from Andy Shevchenko:
- ASUS WMI driver got a couple of updates, i.e. support of FAN is fixed
for recent products and the charge threshold support has been added
- Two uknown key events for Dell laptops are being ignored now to avoid
spamming users with harmless messages
- HP ZBook 17 G5 and ASUS Zenbook UX430UNR got accelerometer support.
- Intel CherryTrail platforms had a regression with wake up. Now it's
fixed
- Intel PMC driver got fixed in order to work nicely in Xen
environment
- Intel Speed Select driver provides bucket vs core count relationship.
Besides that the tools has been updated for better output
- The PrivacyGuard is enabled on Lenovo ThinkPad laptops
- Three tablets - Trekstor Primebook C11B 2-in-1, Irbis TW90 and Chuwi
Surbook Mini - got touchscreen support
* tag 'platform-drivers-x86-v5.4-1' of git://git.infradead.org/linux-platform-drivers-x86: (53 commits)
MAINTAINERS: Switch PDx86 subsystem status to Odd Fixes
platform/x86: asus-wmi: Refactor charge threshold to use the battery hooking API
platform/x86: asus-wmi: Rename CHARGE_THRESHOLD to RSOC
platform/x86: asus-wmi: Reorder ASUS_WMI_CHARGE_THRESHOLD
tools/power/x86/intel-speed-select: Display core count for bucket
platform/x86: ISST: Allow additional TRL MSRs
tools/power/x86/intel-speed-select: Fix memory leak
tools/power/x86/intel-speed-select: Output success/failed for command output
tools/power/x86/intel-speed-select: Output human readable CPU list
tools/power/x86/intel-speed-select: Change turbo ratio output to maximum turbo frequency
tools/power/x86/intel-speed-select: Switch output to MHz
tools/power/x86/intel-speed-select: Simplify output for turbo-freq and base-freq
tools/power/x86/intel-speed-select: Fix cpu-count output
tools/power/x86/intel-speed-select: Fix help option typo
tools/power/x86/intel-speed-select: Fix package typo
tools/power/x86/intel-speed-select: Fix a read overflow in isst_set_tdp_level_msr()
platform/x86: intel_int0002_vgpio: Use device_init_wakeup
platform/x86: intel_int0002_vgpio: Fix wakeups not working on Cherry Trail
platform/x86: compal-laptop: Initialize "value" in ec_read_u8()
platform/x86: touchscreen_dmi: Add info for the Trekstor Primebook C11B 2-in-1
...
Read the bucket and core count relationship via MSR and display
when displaying turbo ratio limits.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
This cpupower update for Linux 5.4-rc1 consists of bug fixes and
German translation updates from Benjamin Weis.
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Merge tag 'linux-cpupower-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux
Pull cpupower utility updates for v5.4 from Shuah Khan:
"This cpupower update for Linux 5.4-rc1 consists of bug fixes and
German translation updates from Benjamin Weis."
* tag 'linux-cpupower-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
cpupower: update German translation
tools/power/cpupower: fix 64bit detection when cross-compiling
cpupower: Add missing newline at end of file
cpumasks are allocated by calling the alloc_cpu_mask() function and are
never free'd. They should be free'd after the commands have run.
Fix the memory leaks by calling free_cpu_set().
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The intel-speed-select tool currently only outputs a hexidecimal CPU mask,
which requires translation for use with kernel parameters such as
isolcpus.
Along with the CPU mask, output a human readable CPU list.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The intel-speed-select tool currently outputs the turbo ratio for every
bucket. Make the output more user-friendly by changing the output to the
maximum turbo frequency.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
These features are introduced on new processors that will never operate
in the KHz range.
Save some zeros and switch the output to MHz.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The current output of 'intel-speed-select -c 53 perf-profile info -l 0'
shows
speed-select-turbo-freq-support:1
speed-select-base-freq-support:1
speed-select-base-freq-enabled:0
speed-select-turbo-freq-enabled:0
Simplify the output to single lines displaying status of disabled,
enabled, and unsupported.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
I have a system with 28 threads/socket but intel-speed-select reports
a cpu-count of 29.
Fix an off-by-one error in the cpu_count() function.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: David Arcari <darcari@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
The isst_send_msr_command() function will read 8 bytes but we are
passing an address to an int (4 bytes) so it results in a read overflow.
Fixes: 3fb4f7cd47 ("tools/power/x86: A tool to validate Intel Speed Select commands")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
sleepgraph:
- kprobe_events won't set correctly if the data is buffered
- force sysvals.setVal to be unbuffered and use binary mode
- tested in both python2 and python3
Link: https://bugzilla.kernel.org/show_bug.cgi?id=204773
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Conflicts:
tools/power/x86/turbostat/turbostat.c
Recent turbostat changes conflicted with a pending rename of x86 model names in tip:x86/cpu,
sort it out.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Commit 9392bd98bb ("tools/power turbostat: Add support for AMD
Fam 17h (Zen) RAPL") and the commit 3316f99a9f ("tools/power
turbostat: Also read package power on AMD F17h (Zen)") add AMD Fam 17h
RAPL support.
Hygon Family 18h(Dhyana) support RAPL in bit 14 of CPUID 0x80000007 EDX,
and has MSRs RAPL_PWR_UNIT/CORE_ENERGY_STAT/PKG_ENERGY_STAT. So add Hygon
Dhyana Family 18h support for RAPL.
Already tested on Hygon multi-node systems and it shows correct per-core
energy usage and the total package power.
Signed-off-by: Pu Wen <puwen@hygon.cn>
Reviewed-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Len Brown <len.brown@intel.com>
Commit 9392bd98bb ("tools/power turbostat: Add support for AMD
Fam 17h (Zen) RAPL") add a function get_tdp_amd(), the parameter is CPU
family. But the rapl_probe_amd() function use wrong model parameter.
Fix the wrong caller parameter of get_tdp_amd() to use family.
Cc: <stable@vger.kernel.org> # v5.1+
Signed-off-by: Pu Wen <puwen@hygon.cn>
Reviewed-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Len Brown <len.brown@intel.com>
In some case C1% will be wrong value, when platform doesn't have MSR for
C1 residency.
For example:
Core CPU CPU%c1
- - 100.00
0 0 100.00
0 2 100.00
1 1 100.00
1 3 100.00
But adding Busy% will fix this
Core CPU Busy% CPU%c1
- - 99.77 0.23
0 0 99.77 0.23
0 2 99.77 0.23
1 1 99.77 0.23
1 3 99.77 0.23
This issue can be reproduced on most of the recent systems including
Broadwell, Skylake and later.
This is because if we don't select Busy% or Avg_MHz or Bzy_MHz then
mperf value will not be read from MSR, so it will be 0. But this
is required for C1% calculation when MSR for C1 residency is not present.
Same is true for C3, C6 and C7 column selection.
So add another define DO_BIC_READ(), which doesn't depend on user
column selection and use for mperf, C3, C6 and C7 related counters.
So when there is no platform support for C1 residency counters,
we still read these counters, if the CPU has support and user selected
display of CPU%c1.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Turbostat works by taking a snapshot of counters, sleeping, taking another
snapshot, calculating deltas, and printing out the table.
The sleep time is controlled via -i option or by user sending a signal or a
character to stdin. In the latter case, turbostat always adds 1 ms
sleep before it reads the counters, in order to avoid larger imprecisions
in the results in prints.
While the 1 ms delay may be a good idea for a "dumb" user, it is a
problem for an "aware" user. I do thousands and thousands of measurements
over a short period of time (like 2ms), and turbostat unconditionally adds
a 1ms to my interval, so I cannot get what I really need.
This patch removes the unconditional 1ms sleep. This is an expert user
tool, after all, and non-experts will unlikely ever use it in the non-fixed
interval mode anyway, so I think it is OK to remove the 1ms delay.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Commit '47936f944e78 tools/power turbostat: fix printing on input' make
a valid fix, but it completely disabled piped stdin support, which is
a valuable use-case. Indeed, if stdin is a pipe, turbostat won't read
anything from it, so it becomes impossible to get turbostat output at
user-defined moments, instead of the regular intervals.
There is no reason why this should works for terminals, but not for
pipes. This patch improves the situation. Instead of ignoring pipes, we
read data from them but gracefully handle the EOF case.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This enables turbostat utility on Ice Lake NNPI SoC.
Link: https://lkml.org/lkml/2019/6/5/1034
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Perhaps if this more descriptive name had been used,
then we wouldn't have had the HSW ULT vs HSW CORE bug,
fixed by the previous commit.
Signed-off-by: Len Brown <len.brown@intel.com>
turbostat: cpu0: msr offset 0x630 read failed: Input/output error
because Haswell Core does not have C8-C10.
Output C8-C10 only on Haswell ULT.
Fixes: f5a4c76ad7 ("tools/power turbostat: consolidate duplicate model numbers")
Reported-by: Prarit Bhargava <prarit@redhat.com>
Suggested-by: Kosuke Tatsukawa <tatsu@ab.jp.nec.com>
Signed-off-by: Len Brown <len.brown@intel.com>
turbostat could be terminated by general protection fault on some latest
hardwares which (for example) support 9 levels of C-states and show 18
"tADDED" lines. That bloats the total output and finally causes buffer
overrun. So let's extend the buffer to avoid this.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Currently the error return path does not close the file fp and leaks
a file descriptor. Fix this by closing the file.
Fixes: 5ea7647b33 ("tools/power turbostat: Warn on bad ACPI LPIT data")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Turbostat currently normalizes TSC and other values by dividing by an
interval. This interval is the delta between the start of one global
(all counters on all CPUs) sampling and the start of another. However,
this introduces a lot of jitter into the data.
In order to reduce jitter, the interval calculation should be based on
timestamps taken per thread and close to the start of the thread's
sampling.
Define a per thread time value to hold the delta between samples taken
on the thread.
Use the timestamp taken at the beginning of sampling to calculate the
delta.
Move the thread's beginning timestamp to after the CPU migration to
avoid jitter due to the migration.
Use the global time delta for the average time delta.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Len Brown <len.brown@intel.com>
The -w argument in x86_energy_perf_policy currently triggers an
unconditional segfault.
This is because the argument string reads: "+a:c:dD:E:e:f:m:M:rt:u:vw" and
yet the argument handler expects an argument.
When parse_optarg_string is called with a null argument, we then proceed to
crash in strncmp, not horribly friendly.
The man page describes -w as taking an argument, the long form
(--hwp-window) is correctly marked as taking a required argument, and the
code expects it.
As such, this patch simply marks the short form (-w) as requiring an
argument.
Signed-off-by: Zephaniah E. Loss-Cutler-Hull <zephaniah@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
