| Commit message (Collapse) | Author | Age |
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For Low-latency audio playback usecase, vote for a priority
upgrade for Glink Rx thread, to avoid any performance issue.
Bug: 38234822
Change-Id: I8332c80eedd7325700e695f341fc4b92f65fd77c
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
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Chained IRQs (the local device IRQs for chips that relay other IRQs)
are all initialized in the kernel using a shared generic irqaction
struct called "chained_action". Since the action is shared, the API
for registering chained IRQ handlers does not allow a unique name to
be specified, whereas non-chained IRQ handlers can have unique names.
Unfortunately, the name of an IRQ handler action is included in resume
logging, both in the kernel and in batterystats, and the name of the
shared action for chained IRQ handlers is left null. So when a chained
IRQ is detected as part of the wakeup reason during resume flow, we
currently see log content like "10 triggered null" and "Resume caused
by IRQ 10" in the kernel log and wakeup reason substrings like ":10:"
in batterystats.
To reduce confusion when troubleshooting and improve the clarity of
logs, this change adds a generic name ("chained-irq") to the shared
action. This name will show up in resume logging whenever any chained
IRQ handler is part of the wakeup reason. In the kernel log:
"10 triggered null" will become "10 triggered chained-irq"
"... caused by IRQ 199" will become "... caused by IRQ 199 chained-irq"
And in batterystats wakeup reasons:
":10:" will become ":10:chained-irq"
This change does not (and cannot) provide any clarity in the logs
about which chip is associated with which chained IRQ number; that
information - if needed - must be obtained through other means.
Bug: 63899519
Test:Ran on walleye and taimen devices and observed kernel logging
and dumpsys batterystats logging changes.
Signed-off-by: Kelly Rossmoyer <krossmo@google.com>
Change-Id: I807f385fe64573cb3962cd25089fbc8e270a2377
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PM wakeups were reporting in kernel and BatteryStats logs as abort
suspends due to the PM IRQ handler logging a suspend abort, which
prevented the normal wakeup resume messaging. Suspend abort reasons
are already logged in pm_wakeup_pending() in
drivers/base/power/wakeup.c.
Bug: 34225014
Change-Id: I8b9ab597caef61b0d6f5b853b2947d6afc13d693
Signed-off-by: Maggie White <maggiewhite@google.com>
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If a driver invokes multiple power_supply_register(), the each supply
will not be saved in the supplied_from[] with the correct index.
supplied_from[0] = "dc"
num_supplies = 1;
supplied_from[0] = "usb"
num_supplies = 2;
supplied_from[0] = "battery"
num_supplies = 3;
...
It results in NPE when iterating the supplied_from[] with num_supplies on
__power_supply_is_supplied_by()
Bug: 63785418
Change-Id: Ifd14ca7c6e2df247e1090e4fa8d8c66bd2912180
Signed-off-by; Devin Kim <dojip.kim@lge.com>
Signed-off-by: Steve Pfetsch <spfetsch@google.com>
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timerfd doesn't create any wakelocks; eventpoll can, and is creating the
wakelocks we see called "[timerfd]". eventpoll creates two kinds of
wakelocks: a single top-level lock associated with the eventpoll fd
itself, and one additional lock for each fd it is polling that needs such
a lock (e.g. those using EPOLLWAKEUP). Current code names the per-fd
locks using the undecorated names of the fds' associated files (hence
"[timerfd]"), and is naming the top-level lock after the PID of the caller
and the name of the file behind the first fd for which a per-fd lock is
created. To make things clearer, the top-level lock is now named using
the caller PID and an "epollfd" designation, while the per-fd locks are
also named with the caller's PID (to associate them with the top-level
lock) and their respective fds' file names.
Bug: 63622255
Bug: 38042165
Test: Ran on device and observed new wakelock naming in bugreport, dumpsys
batterystats, /d/tracing/trace, and d/wakeup_reasons.
Change-Id: I32bfe5fe6766bb569329a450cc7163d52d59ed34
Signed-off-by: Kelly Rossmoyer <krossmo@google.com>
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Add pid and file to facilitate debugging when eventpoll wakeup
prevents sleeping.
Bug: 32180327
Change-Id: I34bada5ddab04cf3830762c745f46bfcd1549cb8
Signed-off-by: John Dias <joaodias@google.com>
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current output looks like this:
[ 133.772467] Abort: Wakeup IRQ 730 wdog-bark pending[ 133.777343] PM: suspend exit 2017-11-30 19:05:34.974168313 UTC
Change it to this:
[ 133.772467] Abort: Wakeup IRQ 730 wdog-bark pending
[ 133.777343] PM: suspend exit 2017-11-30 19:05:34.974168313 UTC
Change-Id: Ic38338a3274b83256788077db6f1040605b79603
Signed-off-by: Patrick Tjin <pattjin@google.com>
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Test: dumpsys batterystats
Bug: 30874086
(cherry picked from commit a9d6bead120dab67e00bfe5500a616f83b94cf44)
Change-Id: I9feae71693b4addd45550b19ecab7dfd7371c378
Signed-off-by: Maggie White <maggiewhite@google.com>
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If log_suspend_abort_reason called in interrupt context, the spinlock
may deadlock.
With https://lkml.org/lkml/2014/9/1/404, wakeup mechanism changed, so
log_suspend_abort_reason can be placed in interrupt context to retrieve
the abort reasons.
Bug: 32371978
Change-Id: I6902770e54b663d21b47289daec19401fc0dbed4
Signed-off-by: Wei Wang <wvw@google.com>
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set msm_show_resume_irq_mask to log wakeup reasons for batterystats
Bug: 28383208
Change-Id: I00b856c691d9da7ed6452704db9b0f3f56f49581
Signed-off-by: Thierry Strudel <tstrudel@google.com>
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Current accounting is innaccurate for lazy irq masking and may
cause handle_bad_irq triggered in such case.
Bug: 30604869
Change-Id: If805e10c724b755323004da1e1fe18d315e81df2
Signed-off-by: Wei Wang <wvw@google.com>
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Bug: 29697729
Change-Id: Id25487ba6ba4f141dff3653089a100931bd4fb71
Signed-off-by: Thierry Strudel <tstrudel@google.com>
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log wakeup reason for irq
Bug: 28852315
Change-Id: Iad9cf7423e51441c81f52fd94dd6347de6709262
Signed-off-by: Wei Wang <wvw@google.com>
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Introduce a config item, CONFIG_DEDUCE_WAKEUP_REASONS, disabled by default.
Make CONFIG_PARTUALRESUME select it.
(cherry picked from commit 753b5405eedf67357952e3a10cb3fb1392a3972b)
Change-Id: I7d831ff0a9dfe0a504824f4bc65ba55c4d92546b
Signed-off-by: Iliyan Malchev <malchev@google.com>
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log_possible_wakeup_reason() and stop_logging_wakeup_reasons() can race, as the
latter can be called from process context, and both can run on separate cores.
Change-Id: I306441d0be46dd4fe58c55cdc162f9d61a28c27d
Signed-off-by: Iliyan Malchev <malchev@google.com>
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The query results are valid until the next PM_SUSPEND_PREPARE.
(cherry picked from commit 76543de14f860ab713114621cb62e8006b7ca952)
Change-Id: I6bc2bd47c830262319576a001d39ac9a994916cf
Signed-off-by: Iliyan Malchev <malchev@google.com>
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Accessing pins owned by TZ crashes the system. Avoid to access these
pins in msm_gpio_dbg_show so that we can cat "/d/gpio" to monitor pin
states without crash.
Bug: 34906817
Change-Id: Ib5347dee882299361094e31cfb7950b65716e654
Signed-off-by: Woody Lin <woody_lin@htc.com>
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Android uses a 1 MiB console ramoops region, which requires kmalloc
to be changed to vmalloc in the following places:
1. pstore_mkfile(), allocation of inode->i_private
2. ramoops_pstore_read(), allocation of buf
Bug: 67383905
Change-Id: Ie4f355a5991b7cb6ad356ded7bd9d41630602bf5
Signed-off-by: Siqi Lin <siqilin@google.com>
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console-ramoops size can be big enough for kmalloc() to
fail due to memory fragmentation. Use vmalloc() instead.
Bug: 65495856
Change-Id: I28c7ba97e8ebfd6b8f4ebfe9296a2d76fa6e2652
Signed-off-by: Siqi Lin <siqilin@google.com>
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This patch protects against unknown spurious signals generated on Rx
line.
The possible sources of spurious signals are unknown as of now.
Yes, 1 msec delay after enabling wakeup interrupt to suppress false call
to ISR handlers which we do not expect.
In case of shutdown, we do not expect wake up irq to get fired as irq
gets disabled in the start.
Change-Id: I3cb34e5c39bff715cad1618c2eeefbf9bc95c87c
Signed-off-by: Mukesh Kumar Savaliya <msavaliy@codeaurora.org>
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Kthread allocation can fail, so check that it's not an error value
before trying to stop it.
Bug: 63354008
Test: build & run bluetooth audio
Signed-off-by: Philip Cuadra <philipcuadra@google.com>
Change-Id: Ia8a91645beef2b4df64582b9059272f6df8ad4a9
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For Bluetooth, the tty kthread should be RT in order to avoid scheduling
delays.
Bug: 36106419
Test: play bluetooth audio, verify tty kthread runs at RT via systrace
Change-Id: I441dd10d22f8831d055166bcd1ff9f01e5ca13d4
Signed-off-by: Philip Cuadra <philipcuadra@google.com>
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This function allows the port's scheduling policy to be changed. Some
tty ports (like Bluetooth ones), need a higher priority to reduce
jitter.
Bug: 36106419
Test: Bluetooth audio
Change-Id: If11e21c55924314910d602573c735c6afae09709
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This makes each tty_port have their own kthread, hopefully allowing them
a bit more freedom in scheduling when they reveive data.
Based on a patch from Philip Cuadra <philipcuadra@google.com>
Based on a patch from Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Bug: 36106419
Test: run Bluetooth audio, ensure separate tty thread is created.
Signed-off-by: Philip Cuadra <philipcuadra@google.com>
Change-Id: I9fd25235b26a66acb37a40304c356209b74ad46c
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msm_serial_hs threads for RX and TX are responsible for passing key
bluetooth buffers, such as bluetooth audio, between the Bluetooth HW and
the upper layers of the stack. These threads are therefore on the
critical path for bluetooth audio latency, and should be scheduled as
RT threads in order to ensure that they meet audio deadlines.
Bug 36106419
Test: Play bluetooth audio, confirm msm_serial_hs_0 threads are
scheduled as RT threads via systrace
Change-Id: I078dbcbab189a03bdc5fdfde6ec8c41c79c11610
Signed-off-by: Philip Cuadra <philipcuadra@google.com>
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Change-Id: I7f9c9f63fe2987c5b75773d87fde26e263c5ac71
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Regardless of CPU isolation or not, we need to wake up all the
CPUs during suspend to idle so that each CPU can disable their
local tick device, etc. If we don't wake every CPU up, then we
don't fully suspend the system and things like sched_clock and
timekeeping are never stopped properly.
Change-Id: Ic9141602acc5e6cddefca0727f9be075dad3e498
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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While doing a load balance there is a race in setting
loop_max variable since nr_running can be changed causing
incorect iteration loops.
As a result we may skip some candidates or check the same
tasks again.
Change-Id: I2f58f8fe96c14bd70674e600bc33caeb8aa960c6
Signed-off-by: Uladzislau 2 Rezki <uladzislau2.rezki@sonymobile.com>
Signed-off-by: Artem Labazov <123321artyom@gmail.com>
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Like cancel_delayed_work(), but for regular work.
Change-Id: Ic967cb1616245b71a63e1b92f8e28d94a27ae490
Signed-off-by: Jens Axboe <axboe@fb.com>
Mehed-by: Tejun Heo <tj@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
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Thermal core uses work events to poll for sensor driver temperature
crossing a threshold. Since it is not using a deferrable workqueue, it
might wake-up the device from sleep.
Use a deferrable work event and post the work in the power efficient
workqueue for estimating virtual sensor temperature.
Change-Id: I9dd21d8fc4e5ca96e06db9ecb57a628618494a01
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
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Thermal framework uses system freezable work queue for processing the
governor action and mitigation action will be performed in the same
context. System work queue can have one max active event processing
and if the mitigation action is delayed, that will bottleneck the
rest of the work queue event processing. This will result in delayed
action and temperature overshoot.
To avoid this, a new high priority thermal work queue is created and all
the passive monitoring will be done in the high priority context. Also
this work queue has a max active count defined as 16, which will allow
multi-processing of work events.
Change-Id: Id506f21c1583e0ba2e022f8b7bc28e3972c592ef
Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
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The Android-tuned page block heuristic was accidentally reset in an AU
drop. Fix the heuristic to avoid unnecessary unmovable pageblock
migration over time.
bug 30643938
Bug: 63336523
(cherry-picked from commit 3e19bcf7d08713daaaba888b4d13502e06e38e96)
Change-Id: I59efcd3934f29982b1c9aeb7b0f18eb17e0934b3
Signed-off-by: John Dias <joaodias@google.com>
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Poorly made kernel trees often use trace_printk() without
properly guarding them in a #ifdef macro.
Such usage of trace_printk() causes a warning at
boot and additional memory allocation.
This option serves to disable those all at once with ease.
Change-Id: I2cb2085f48064bda8c18806597c5aee57237dca6
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
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This reverts commit 33f11e4812d25d0709740fc0a52f9658d6f0ac61.
Alan wrote a better fix for this:
USB: core: prevent malicious bNumInterfaces overflow
Change-Id: I3410378b27479d0db51fed51c82806045274ecf8
Cc: Andrey Konovalov <andreyknvl@google.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce the irq_enable callback which will be same as irq_unmask
except that it will also clear the status bit before unmask.
This will help in clearing any erraneous interrupts that would
have got latched when the interrupt is not in use.
There may be devices like UART which can use the same gpio line
for data rx as well as a wakeup gpio when in suspend. The data that
was flowing on the line may latch the interrupt and when we enable
the interrupt before going to suspend, this would trigger the
unexpected interrupt. This change helps clearing the interrupt
so that these unexpected interrupts gets cleared.
Bug: 68261352
Bug: 77429706
Change-Id: I017badff8d5b993599d7e7240ed4702ff4b344ad
Signed-off-by: Srinivas Ramana <sramana@codeaurora.org>
Signed-off-by: Kyle Yan <kyan@codeaurora.org>
Signed-off-by: Mugata, Sreenivasa Rao <smugat@codeaurora.org>
Signed-off-by: Petri Gynther <pgynther@google.com>
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Bug: 30079159
Change-Id: If66a7ab642d28c7a42e0af337e388af4c1915677
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Change-Id: I2f13656d0e8aa18213b54314f19fcd33a96751c4
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Fix race condition between rls handler thread and clock scaling thread when
LINERESET indication is sent out from host controller. A known scenario is
when clock scaling thread has put link to hibern8 after gear scaling down
is done, if rls handler thread, scheduled because of LINERESET indication
from controller, starts to run now to scale gear up (PWM to HS), it would
fail as the link state is still in hibern8 state. This change fixes this
race condition by using write semaphore to prevent rls handler thread and
clock scaling thread getting chance to run simultaneously.
Change-Id: Ia1731c921c42155cacb43029d56491ddffcf2ee2
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
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We have noticed that UFS load based clock scaling is ramping up to highest
frequency during low power usecases but never scales back to lower
frequency during the remaining usecase run period. This increases the
oveall power consumption for a given low power usecase. We analyzed UFS
data transfer pattern for different low power usecases and updated clock
scaling polling period & up threshold which helps with power numbers
without affecting performance numbers.
Change-Id: I74cf8a1f07d1b1a0ac112f28fc98a8a82cac1d28
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
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In case of an exception, there could be a deadlock:
eeh_work:
-002|schedule()
-003|spin_lock_irq()
-003|rpm_resume << pm_runtime_get_sync(hba->dev);
-004|__pm_runtime_resume()
-005|ufshcd_scsi_block_requests()
-005|ufshcd_exception_event_handler()
ufshcd_suspend:
-002|schedule()
-003|schedule_timeout()
-004|do_wait_for_common()
-004|__wait_for_common()
-004|wait_for_common()
-005|wait_for_completion()
-006|destroy_work_on_stack()
-006|flush_work(?) << eeh_work
-007|ufshcd_suspend()
-008|ufshcd_runtime_suspend()
-009|ufshcd_pltfrm_runtime_suspend()
-010|pm_generic_runtime_suspend()
-011|__rpm_callback()
Scenario looks like :
1.Hba->eeh_work starts to work and at the almost same
time ufshcd_runtime_suspend start to work by rpm core.
2.pm_runtime_get_sync in eeh_work remains pending as
rpm_status is RPM_SUSPENDING due to ufshcd_runtime_suspend.
To fix this, call pm_runtime_get_noresume() once eeh_work
is scheduled so that suspend cannot be invoked during
exception work.
Change-Id: Ib212f71e22f063dad9c6ccca4aa8f7261e568b51
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Sayali Lokhande <sayalil@codeaurora.org>
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1. JEITA FV compensation cannot work
2. Cannot charge when battery capacity is 0%
3. Wrong debug message
Change-Id: I32ecb77b4c1dd8073cbf5aec070c3e6fcadc1dd2
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Change-Id: Iec6a12aaed4dce60f774c09264b8e566a17ce9d9
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Bug: 27134656
Change-Id: I681ec2171472514489365ca4bfc4ef16d9b344fe
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Fixes 28aab0311cfcd9b279f41f2f4da0085a660d5ed5
"PM/devfreq: bw_hwmon: add mutex lock in polling interval case"
Change-Id: I84ccefedbc9d9c0d25806799451346b6a46bae90
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The ratio value that's compared against ratio_ceil tunable can be 0 for
workloads that are extremely latency sensitive. So, we can't ignore cores
that have a ratio of 0 (which was done to ignore idle cores). So, stop
ignoring cores with a ratio of 0 and instead check for instruction or
frequency being 0 to identify idle cores.
Change-Id: I8c6c14f374f016e6612c3b834589d065bad8f488
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
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In bytes_to_mbps function, the parameter is all unsigned,
so change the decleration of the function to include unsigned long
long to avoid compilation errors in 32 bit environment.
Also changed the return value as unsigned long to avoid
any data loss possible in 64 bit environment.
Change-Id: Ib3906bb4bc16086ae343764c5a718f6f005428c5
Signed-off-by: Maria Yu <aiquny@codeaurora.org>
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During suspend alarm timer sends next wakeup time to
be programmed. Currently next wakeup time is not reset
upon wakeup. This causes unintended wakeups if there is
no alarm set during next suspend.
Reset suspend wake time during exit from suspend.
Change-Id: Ia0e5d08a4e5cdc71f6c2d884363b830de5ef88d5
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
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Prediction can select shallower low power mode for isolated
cpu based on historical data.
Do not predict LPMs for isolated cpus.
Change-Id: I998008ef3c578c1dccfacae8513a15dfbe397e16
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
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As it's a general understanding across all architectures to have
a WFI (or equalivalent) mode always present and never disabled
for cpuidle, return true for CPU WFI mode allow check.
Change-Id: Ic55571488f845e4aaf997faaac3b2e0f22368d4e
Signed-off-by: Srinivas Rao L <lsrao@codeaurora.org>
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According to Google we should set this to 0
as there is excessive logging in specific usecases
which has a negative impact on latency.
Change-Id: If03401694c2b746b5e2111cb5daafa8eab169e29
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
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