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path: root/drivers/devfreq (follow)
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* msm: kgsl: Port GPU bus dcvs to kernel 4.4Oleg Perelet2016-05-18
| | | | | | | | Port GPU dcvs from kernel 3.18 to kernel 4.4. CRs-Fixed: 1013343 Change-Id: Ide662b12aa59effa541febcd758426e72b4a1b12 Signed-off-by: Oleg Perelet <operelet@codeaurora.org>
* PM / devfreq: bw_hwmon: Fix race condition in polling interval updateSaravana Kannan2016-04-07
| | | | | | | | | | | | | | | | | When the polling interval is updated, the delayed workqueue is cancelled and requeued with the new polling interval. However, the bw_hwmon IRQ can come at the same time and try to stop and restart the delayed work (in the IRQ thread). This can cause a race where the work might be queued twice or canceled twice and cause a crash. Fix this race condition by suspending and resuming the HW monitor when we are updating the polling interval. This entirely avoids the race because suspending the HW monitor also avoid the possibility of the IRQ coming during the polling interval update. CRs-Fixed: 954082 Change-Id: Ic7baf2a3da4ed8f8a9023617059e22fd81c3ba45 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* adreno_tz: Use context aware dcvs calls, if availableDeepak Kumar2016-03-25
| | | | | | | | | | Add support to use context aware dcvs, if it is supported by TZ. Context aware dcvs helps in handling sudden workload scenarios. Change-Id: I5e6e6003a5c61eacb4f5af91910994919a5a7684 Signed-off-by: Deepak Kumar <dkumar@codeaurora.org> Signed-off-by: Divya Ponnusamy <pdivya@codeaurora.org>
* msm: kgsl: Add disable-busy-time-burst to disable ceiling thresholdDivya Ponnusamy2016-03-23
| | | | | | | | | | Add a devicetree property disable-busy-time-burst to disable ceiling threshold in the governor. The ceiling threshold cause busy time burst that switch power level for large frames based on busy time. Change-Id: I44f8a51e0aa49bb0b2210703f57874fd5f219c18 Signed-off-by: Divya Ponnusamy <pdivya@codeaurora.org>
* drivers: iommu, leds, input, clk, devfreq: fix warningsRohit Vaswani2016-03-23
| | | | | | | | Fix some variable initializations which would otherwise cause forbidden warnings. Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org> Signed-off-by: David Keitel <dkeitel@codeaurora.org>
* PM / devfreq: Kconfig: Replace ARCH_MSM with ARCH_QCOMJunjie Wu2016-03-23
| | | | | | | | ARCH_MSM has been replaced by ARCH_QCOM. Fix Kconfig for various devfreq governors and devices. Change-Id: Ifa85494785cea7eb03be6c02d5664ee6bb2110c6 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: Fix the return value check in memlat governorRohit Gupta2016-03-23
| | | | | | | | | | The return value of kstrtouint is erroneously checked while setting the tunables for mem_latency governor due to which the tunables cannot be changed from their default values. This change rectifies that behavior. Change-Id: Ief7dda4638ede2c97b26229f1188a1559b238920 Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
* PM / devfreq: Fix perf event initialization to avoid memory leaksRohit Gupta2016-03-23
| | | | | | | | | | | | | Currently stop_hwmon only releases the perf events for each CPU in the memlat device group. This leaves out the perf_event_attrs that are not needed anymore leading to memory leaks. This patch frees perf_event_attrs right after the perf events are created because they are copied into the perf_event structure when it is created for a particular event and hence do not need to exist beyond that point. Change-Id: If0871739ef477dfbcbbfc6ab2a631ce25deaf71c Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
* PM / devfreq: Handle offline CPUs while creating eventsRohit Gupta2016-03-23
| | | | | | | | | | | | | | | | If any of the CPUs monitored by a memlat device is offline while trying to register for perf events, the registration fails returning an error code to the governor's start_monitor function which then fails the setting of governor and leaves the system in a bad state. To avoid this scenario, this patch allows for initialization errors while registering for perf events and remembers the failing offline CPUs. Perf event registration is tried for the failing CPUs when they come back online. Once all the CPUs have registered for perf events hotplug notifiers callbacks are unregistered. Change-Id: I36c33d9dc627f60ab9d7db41913661927938e850 Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
* devfreq: devfreq_simple_dev: call clk_round_rate in dev_targetHanumath Prasad2016-03-23
| | | | | | | | | | clk_set_rate is failing for some of the frequencies due to higher precision introduced in clock driver. Hence call the clk_round_rate again in dev_target to make sure we send the correct frequency to clk_set_rate. Change-Id: I3e40690bf794d99debbcecdcaf05aaac3363caa8 Signed-off-by: Hanumath Prasad <hpprasad@codeaurora.org>
* PM / devfreq: governor_cpufreq: Fix incorrect refcounting of OF nodeSaravana Kannan2016-03-23
| | | | | | | | | | | The of_node_put(of_child) call was put in to balance the of_node_get() that's done inside for_each_child_of_node(). But that's not the right thing to do because for_each_child_of_node() already takes care of doing of_node_put(). So, delete the unnecessary of_node_put(of_child) call. We still need the of_node_put(of_par) though. Change-Id: Iff7744839cfcf01d5a472449f74859e9030b7e16 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: memlat: Get complete CPU list during the probeRohit Gupta2016-03-23
| | | | | | | | | | | | | | | | | Currently arm-memlat-mon driver uses cpu_coregroup_mask to get the sibling CPUs for the first CPU specified during the probe. However if any of the CPUs in a cluster isn't hotplugged in even once before the probe runs then the call to cpu_coregroup_mask might not give the updated list of all the sibling CPUs for the specified CPU. With this change the initialization of the cpumask for the memlat device is obtained from the list of CPU phandles specified in the dtsi file. Change-Id: Ide97d60d9eecbbe1d33deda72a13951059822896 Signed-off-by: Rohit Gupta <rohgup@codeaurora.org> [junjiew@codeaurora.org: dropped changes in dtsi files.] Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq : Introduce a memory-latency governorRohit Gupta2016-03-23
| | | | | | | | | | | Use performance counters to detect the memory latency sensitivity of CPU workloads and vote for higher DDR frequency if required. Change-Id: Ie77a3523bc5713fc0315bd0abc3913f485a96e0e Signed-off-by: Rohit Gupta <rohgup@codeaurora.org> Suggested-by: Saravana Kannan <skannan@codeaurora.org> [junjiew@codeaurora.org: dropped changes in arch/arm64/Kconfig] Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: bw_hwmon: Expose a throttle adjust tunableRohit Gupta2016-03-23
| | | | | | | | | | | | | Newer versions of bimc-bwmon counters have the capability to fake higher byte count than what's actually transferred between a bus master and DDR if the bus master is being throttled by QoS hardware logic. Add support to set the throttle adjust field that comes with this newer version of bimc-bwmon. Change-Id: I33376c825fb11ab2e378f828b1d2ae46dd582836 Signed-off-by: Rohit Gupta <rohgup@codeaurora.org> [junjiew@codeaurora.org: dropped changes in dtsi.] Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: bw_hwmon: Fix handling of max_mbpsSaravana Kannan2016-03-23
| | | | | | | | | | | | | | | | | | | | | | When doing over-voting due to an UP_WAKE event, the governor pre-initialized the max_mbps value for the next decision window. This was done to prevent a dropping the vote below the original measurement in case a DOWN_WAKE event comes before the decision window is complete. This has the undesirable side-effect of keeping the votes high for two decision windows following an UP_WAKE event. Also, DOWN_WAKE event is currently disabled for any decision windows that didn't do over-voting because doing so had significant performance impacts. However, with historic max tracking, pattern detection and hysteresis, and mbps zones awareness that were added later on, the above concerns aren't really valid anymore. So, simply delete the pre-initialization of the max_mbps so that one decision window isn't unnecessarily voting higher than necessary. As part of the change, also fix down_cnt logic to allow it to work for all decision windows if enabled. Change-Id: I600e3783da617ed4efef5b05156016d88c301cea Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bw_hwmon: Allow up_scale to be set to zeroRohit Gupta2016-03-23
| | | | | | | | | Currently the lower limit for setting up_scale is 100. Change it to 0 so that over-voting for spikes in measured bandwidth can be disabled by setting up_scale to 0. Change-Id: I1e5e3d51c625163b38074fb1eda26763455ea6c5 Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
* PM / devfreq: bw_hwmon: Remove debug logs from high frequency code pathSaravana Kannan2016-03-23
| | | | | | | | | Using debug logs for the short samples would result in excessive logging and also have an impact on CPU power and performance. The tracepoint that's already there is a much better alternative. So, delete the debug logs. Change-Id: Idd1d634f510381d14637f3b84588a118572f3f16 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bimc-bwmon: Fix IRQ registration in resume pathSaravana Kannan2016-03-23
| | | | | | | | | The IRQ registration on the resume path was not updated properly when the high sampling rate algorithm was implemented. Update it so that the IRQ registration is done correctly. Change-Id: I17a016dd9c0b50c7b415beda21368cb4586d203c Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: governor_cache_hwmon: Add mrps and freq vote tracesJunjie Wu2016-03-23
| | | | | | | | Replace measured mrps and frequency vote debug prints with trace events. Change-Id: I78370b068e3819a57635cbabaf5cdd053ebabce4 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: bimc-bwmon: Update irq handling in suspend/resumeHanumath Prasad2016-03-23
| | | | | | | | | | | Change the sequence of registering and freeing the interrupt handler in suspend/resume. Freeirq needs a guarantee that the IRQ can't come anymore before we call it. So, we disable the IRQ before calling freeirq.And register the handler before enabling the irq to avoid the interrupt getting unhandled. Change-Id: I3945202d049e16f64a16e456f914f7602b763c89 Signed-off-by: Hanumath Prasad <hpprasad@codeaurora.org>
* PM / devfreq: bw_hwmon: Take at least one sample per decision windowSaravana Kannan2016-03-23
| | | | | | | | | | | Due to the way the short samples are triggered, when the traffic is very low, we could have a decision window where no sample is taken. Fix this by forcing a sample at the end of every decision window as long as that is the first sample for that decision window or the sample window won't be smaller than the sample_ms tunable. Change-Id: Ia33b59fbff9ff4058c06e24208d1e037d6e9eda9 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bw_hwmon: Remove unused tunables and disable some by defaultSaravana Kannan2016-03-23
| | | | | | | | | With the rewrite of the algorithm, some tunables are not used. Remove those tunables. Other tunables don't make a lot of sense to be turned on by default. Change their default state to be disabled. Change-Id: I228d275a21765986a7117b335a669deebf590f29 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bw_hwmon: Fix AB vote less than measurement when freq at maxSaravana Kannan2016-03-23
| | | | | | | | | | | When the decision window is terminated early by an IRQ and the frequency voted by the governor is the max_freq allowed for that device, the AB vote can be lower than the measured value. This really shouldn't affect power or performance since the device frequency is already maxed out, but fix it anyway so that the logs don't look suspicious. Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Change-Id: I1788cbb1af026f1c54f9acc4806cb29cd6069e04
* PM / devfreq: m4m-hwmon: Fix counter limit calculationJunjie Wu2016-03-23
| | | | | | | | M4M counters are only 28-bit instead of 32-bit. Fix limit calculation to use the right max value. Change-Id: I91078842b72da80f6b6755bf8d808ff4b4142f10 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: m4m_hwmon: Enable cycle counter when m4m_hwmon startsJunjie Wu2016-03-23
| | | | | | | | Enable cycle counter along with other counters when m4m_hwmon is started. Change-Id: Idd86b99c21e21f64bb91db9b1e64597fbfb2306a Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: msmcci-hwmon: Add support for handling shared irqHanumath Prasad2016-03-23
| | | | | | | | | | Some targets have a single irq line which is shared among all the cci hwmon counters. Enhance the driver to support shared interrupt handling. Change-Id: I5fdaecfaa14fa47e8f393fe51c538e5000e6ad5b Signed-off-by: Arun KS <arunks@codeaurora.org> Signed-off-by: Hanumath Prasad <hpprasad@codeaurora.org>
* devfreq: devfreq_simple_dev: Add support for preparing device clockJunjie Wu2016-03-23
| | | | | | | | | For certain implementation, device clock needs to be prepared before rate voting taking effect. Add support for preparing device clock during initialization. Change-Id: Ib22e83952187118342ff2546d4c79d3970a288f9 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: bw_hwmon: Update to low latency, high sampling rate algorithmSaravana Kannan2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing bw_hwmon governor samples the bandwidth every polling_interval milliseconds and makes decisions. Polling interval of 50ms or even 10ms gives a very low resolution picture of the DDR/bus traffic. Due to the lower resolution picture, the existing governor algorithm has to be biased aggressively towards performance to avoid any performance degradation compared to using a static mapping between bus master (CPU, GPU, etc) frequency to DDR/bus BW votes. While the existing governor uses IRQ to get early notification of traffic increase, even a 4x early notification for a 50ms polling interval still takes 12.5ms. This kind of reaction time is still too slow for some bus masters like CPU. To take care of these limitations, rewrite the governor algorithm to take multiple short samples of BW within a decision window (polling interval) and use that higher resolution picture to make much better and faster decisions. Doing so allows the governor to have the following features: - Very low reaction time - Over voting to stay ahead of increasing traffic - Historic peak tracking to limit over voting - Being power aware when doing over voting - Pattern detection and intelligent hysteresis - Detection low traffic modes and being less aggressive about BW votes Change-Id: I69886b7fbeea0b64d10b5a1fb23fcb5f3918f0ce Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: Introduce M4M cache hwmon deviceJunjie Wu2016-03-23
| | | | | | | | | | Introduce M4M cache hwmon device to scale M4M based on hardware counter values. Change-Id: I6a1582e1e66ff3051fcf7f917efb959fe7af96ae Signed-off-by: Junjie Wu <junjiew@codeaurora.org> [junjiew@codeaurora.org: Dropped changes in arch/arm64/Kconfig] Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: bimc-bwmon: Fix typoSaravana Kannan2016-03-23
| | | | | | | | Accidentally used a , instead of a ; to end statements. This change fixes that. Should not have any functional impact. Change-Id: I36ea6c49a8a8973f1856cac6709f01432e6d60c7 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bimc-bwmon: Optimize some debug messagesSaravana Kannan2016-03-23
| | | | | | | | | A device register is read and printed using pr_debug. Register reads can be slow. So, refactor the code such that the register read is also compiled out if the pr_debug is compiled out. Change-Id: I4de5ab1f2133e19d6ce0b3cb4547b815526c7abd Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bimc-bwmon: Fix counter clearingSaravana Kannan2016-03-23
| | | | | | | | | | The counter needs to be cleared and acknowledged before clearing the IRQ bits. Otherwise, the HW could set the IRQ bit again if the old counter value was higher than the threshold. So, add a memory barrier after clearing the counter. Change-Id: I35f9f7905b05b8a185eb94d04d9c0a8ccfc2db51 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bw_hwmon: Add bw_hwmon_meas and bw_hwmon_update trace pointsSaravana Kannan2016-03-23
| | | | | | | | Add trace points to log the measurements and the final decision made by the bw_hwmon governor. Change-Id: I834bec340f81f02fcccbd6d7568a301dc74dded5 Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: governor_cache_hwmon: Fix race in monitor start/stopJunjie Wu2016-03-23
| | | | | | | | | | | | | | Some cache_hwmon devices can have interrupts firing at any time. The interrupt handler would stop devfreq monitor, update its vote and restart the monitor again. This introduces a race if devfreq_supend/resume() or devfreq_interval_update() is called at the same time. Since devfreq_monitor_start() re-initializes the work, it could cause corruption while the work is being used elsewhere. Protect governor monitor start/stops with a new lock. Change-Id: I143aaaea86494b4c617df46e2c521a19b43861d5 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: msmcci-hwmon: Add provision for normal reg accessArun KS2016-03-23
| | | | | | | | | On some systems, scm calls for cci registers are not supported. Use normal writel/readl in those cases. Add device tree flag to distinguish them. Change-Id: Icfb609d43f888856786c1881b2ee34ffd501e37a Signed-off-by: Arun KS <arunks@codeaurora.org>
* PM / devfreq: Introduce MSM CCI HWmon deviceJunjie Wu2016-03-23
| | | | | | | | | | | | | CCI400 on MSM has additional PMU counters that can be used to monitor cache requests. MSM CCI hardware monitor device configures these registers to monitor cache and inform governor. It can also set an IRQ when count exceeds a programmable limit. Change-Id: I1d80f57749b91c3972e60e54c75226c4d49d2ec6 Signed-off-by: Junjie Wu <junjiew@codeaurora.org> [junjiew@codeaurora.org: Dropped change in arch/arm64/Kconfig. Configuration should be selected directly in defconfig.] Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: bimc-bwmon: set a floor_mbps for irq thresholdHanumath Prasad2016-03-23
| | | | | | | | | | | | Interrupt storm happens when bwmon is enabled for GPU. This is mainly due to constant low traffic observed with GPU while doing memory read/write. So as the data rates read from counters are low and so the threshold set for triggering the interrupt also set as low, which in turn causes huge number of interrupts. Avoid this by setting a minimum floor for the irq threshold. Change-Id: I190fad5108bc24afcb67bec5809485380ee3662e Signed-off-by: Hanumath Prasad <hpprasad@codeaurora.org>
* devfreq: devfreq_spdm: Scale parameters to and from TZ driverDilip Kota2016-03-23
| | | | | | | | | | Send all the frequency performance levels in KHz units to TZ driver and convert all the bandwidth recommendations to Bytes/s from Kbytes/s to accomodate change in the syscall interface calls to TZ SPDM driver. Change-Id: I209ea0583fdd43f78f51793d7818ea5afd5959c7 Signed-off-by: Dilip Kota <dkota@codeaurora.org> Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
* devfreq: spdm: Fix call to TZ spdm driverDan Sneddon2016-03-23
| | | | | | | | | | The TZ SPDM driver mandates the number of arguments be constant for a given command id. This patch allows the spdm driver to communicate with the TZ driver correctly. Change-Id: Id3cfd2490039c4abde6d5381859d8facf545e85e Signed-off-by: Dan Sneddon <dsneddon@codeaurora.org> Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
* PM / devfreq: governor_cpufreq: Rewrite locking to avoid deadlocksJunjie Wu2016-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A devfreq governor store in parallel with a cpu freq update can cause deadlock as shown below. Assume current devfreq governor is cpufreq, and user tries to change to some other governor. Write to sysfs store_governor | cpufreq driver updating cpu freq ------------------------------- | ----------------------------------- echo bw_hwmon > governor | | takes rcu_read_lock and calls all | cpufreq transition callbacks for | PRECHANGE or POSTCHANGE | GOV_STOP on governor_cpufreq. | unregister_cpufreq() accquires | state_lock mutex. | | try to accquire same state_lock in | cpufreq_trans_notifier(). Blocked. unregister from cpufreq | transition notifier and wait for| all rcu_readers to finish. | Deadlock A similar deadlock can happen with governor change and policy notifier callbacks. The state_lock currently protects multiple unrelated critical sections: registering/unregistering of cpufreq notifiers, read/writing the device list, and tracking the cpu states and updating device frequencies. There is no need for register/unregister of the cpufreq notifiers to be mutually excluded against the other critical sections using the same lock. Split state_lock into two locks to protect the register/unregister of cpufreq notifiers from the rest of the critical sections. Change-Id: Id06d326748a5cb0c84c4787da5d0910f44eb5c3c Signed-off-by: Pan Fang <fangpan@codeaurora.org> Signed-off-by: Arun KS <arunks@codeaurora.org> Signed-off-by: Junjie Wu <junjiew@codeaurora.org> Suggested-by: Saravana Kannan <skannan@codeaurora.org>
* PM / devfreq: bimc-bwmon: Use free_irq during governor suspend/stopArun KS2016-03-23
| | | | | | | | | | | | | | | | | | | Use free_irq to free the interrupt handler for a shared interrupt. Enable_irqs are not refcounted, whereas disable_irqs are. Depth variable in irq_desc is actually disable-depth, for nested irq_disable() calls. It can have value from 0 to N. 0 is when interrupt is enabled and N shows the irq_disable depth. Lets say, if disable_irq is called 4 times, driver need to call enable_irq 4 times to actually enable the interrupt back. But if enable_irq is called 4 times, only one disable_irq needed to actually disable the interrupt. Use request/free_irq instead of disable/enable_irq. Change-Id: Ie7fe866b403da9bf363f741b1693361b8e2f6a3d Signed-off-by: Arun KS <arunks@codeaurora.org>
* PM / devfreq: Remove Krait L2PM driverRohit Gupta2016-03-23
| | | | | | | Removing Krait L2PM driver since it would not be used for future targets on this branch (msm-3.18). Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
* PM / devfreq: Correct a typo in KconfigRohit Gupta2016-03-23
| | | | | | Remove the ARCH prefix for BIMC_BWMON Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
* devfreq: devfreq_spdm: Enhance debugfs entriesDan Sneddon2016-03-23
| | | | | | | | | Add ability to read filter properties from debugfs and add ability to enable and disable spdm processing. Change-Id: I1b94c5c44180df2a39097657ecc6606562736d1a Signed-off-by: Dan Sneddon <dsneddon@codeaurora.org> Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
* devfreq: spdm: Fix debugfs file permissionsDan Sneddon2016-03-23
| | | | | | | | | | | The files in the debugfs directory for spdm were set incorrectly using hex instead of octal numbers. This patch correctly uses octal codes and removes the execute bit. CRs-Fixed: 799304 Change-Id: I3bab83073d1ee1f426c402a05556c9ae97ca089d Signed-off-by: Dan Sneddon <dsneddon@codeaurora.org>
* devfreq: devfreq_spdm: Support scm and hvcDan Sneddon2016-03-23
| | | | | | | | | | | | Currently SPDM driver uses hvc calls to support the dcvs algorithm logic. On some targets this dcvs algorithm support is present in TZ and which is accessed via separate calls. Add SCM call to support TZ based dcvs algorithm. Change-Id: I197f0f13b4107047151e10e19e4849008607f3e8 Signed-off-by: Dan Sneddon <dsneddon@codeaurora.org> Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
* devfreq: devfreq_spdm: Correct Memory usages check in error casesAlok Chauhan2016-03-23
| | | | | | | | Correct some of memory free usages check to avoid corruption later point of time. Change-Id: Iaeff7bf413157ff324d1678f630de54c22d792a0 Signed-off-by: Alok Chauhan <alokc@codeaurora.org>
* devfreq: devfreq_spdm: Add IPC logging for hypervisor callsGirish Mahadevan2016-03-23
| | | | | | | | | Use IPC logging to log calls made to hypervisor for the SPDM driver. The continuous logging is useful when debugging stability issues and also to profile code execution. Change-Id: Ib32fcc998319f4477dc8c1df383ed89b4a9e9214 Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
* PM / devfreq: Fix error handling in governor_cpufreqJunjie Wu2016-03-23
| | | | | | | | put_online_cpus() is not called if an error occurs during cpufreq notification registration. Fix the error path by calling it properly. Change-Id: Ia2e6b2debb2db4b39f8fcfcd1ee873538b44d405 Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
* PM / devfreq: cache_hwmon: Also print low mrps for debuggingJunjie Wu2016-03-23
| | | | | | | Print out all three levels of requests for debugging. Change-Id: I1e0d12c46386c1aed6b0bfe878449d070fd1adcc Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
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