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*-. Merge branches 'pm-cpuidle' and 'pm-tools'Rafael J. Wysocki2018-04-0225-706/+2685
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpuidle: cpuidle: poll_state: Avoid invoking local_clock() too often PM: cpuidle/suspend: Add s2idle usage and time state attributes cpuidle: Enable coupled cpuidle support on Exynos3250 platform cpuidle: poll_state: Add time limit to poll_idle() ARM: cpuidle: Drop memory allocation error message from arm_idle_init_cpu() * pm-tools: pm-graph: AnalyzeSuspend v5.0 pm-graph: AnalyzeBoot v2.2 pm-graph: config files and installer
| | * pm-graph: AnalyzeSuspend v5.0Todd E Brandt2018-02-212-619/+1053
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - add -cgskip option to reduce callgraph output size - add -cgfilter option to focus on a list of devices - add -result option for exporting batch test results - removed all phoronix hooks, use -result to enable batch testing - change -usbtopo to -devinfo, now prints all devices - add -gzip option to read/write logs in gz format - add -bufsize option to manually control ftrace buffer size - add -sync option to run filesystem sync prior to test - add -display option to enable/disable the display prior to test - add -rs option to enable/disable runtime suspend on all devices for test - add installed config files to search path - add kernel error/warning links into the timeline - fix callgraph trace to better handle interrupts - include command string and kernel params in timeline output header Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * pm-graph: AnalyzeBoot v2.2Todd E Brandt2018-02-212-77/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - add -cgskip option to reduce callgraph output size - add -cgfilter option to focus on a list of devices - add -result option for exporting batch test results - removed all phoronix hooks, use -result to enable batch testing - changed argument -f to match sleegraph, -f = -callgraph - use -fstat for function status instead of -f - add -verbose option to print out timeline stats and kernel options - include command string and kernel params in timeline output header Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| | * pm-graph: config files and installerTodd E Brandt2018-02-2116-7/+1362
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - name change: analyze_boot.py to bootgraph.py - name change: analyze_suspend.py to sleepgraph.py - added config files for easier sleepgraph usage - added example.cfg which describes all config options - added cgskip.txt definition for slimmer callgraphs Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | cpuidle: poll_state: Avoid invoking local_clock() too oftenRafael J. Wysocki2018-03-291-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rik reports that he sees an increase in CPU use in one benchmark due to commit 612f1a22f067 "cpuidle: poll_state: Add time limit to poll_idle()" that caused poll_idle() to call local_clock() in every iteration of the loop. Utilization increase generally means more non-idle time with respect to total CPU time (on the average) which implies reduced CPU frequency. Doug reports that limiting the rate of local_clock() invocations in there causes much less power to be drawn during a CPU-intensive parallel workload (with idle states 1 and 2 disabled to enforce more state 0 residency). These two reports together suggest that executing local_clock() on multiple CPUs in parallel at a high rate may cause chips to get hot and trigger thermal/power limits on them to kick in, so reduce the rate of local_clock() invocations in poll_idle() to avoid that issue. Fixes: 612f1a22f067 "cpuidle: poll_state: Add time limit to poll_idle()" Reported-by: Rik van Riel <riel@surriel.com> Reported-by: Doug Smythies <dsmythies@telus.net> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Rik van Riel <riel@surriel.com> Reviewed-by: Rik van Riel <riel@surriel.com>
| * | PM: cpuidle/suspend: Add s2idle usage and time state attributesRafael J. Wysocki2018-03-294-0/+92
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new attribute group called "s2idle" under the sysfs directory of each cpuidle state that supports the ->enter_s2idle callback and put two new attributes, "usage" and "time", into that group to represent the number of times the given state was requested for suspend-to-idle and the total time spent in suspend-to-idle after requesting that state, respectively. That will allow diagnostic information related to suspend-to-idle to be collected without enabling advanced debug features and analyzing dmesg output. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | cpuidle: Enable coupled cpuidle support on Exynos3250 platformMarek Szyprowski2018-03-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | All the needed code has been already merged to mach-exynos core in commit af9971144dde ("ARM: EXYNOS: add coupled cpuidle support for Exynos3250"), so enable support for coupled variant also for Exynos3250 SoCs. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | cpuidle: poll_state: Add time limit to poll_idle()Rafael J. Wysocki2018-03-291-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If poll_idle() is allowed to spin until need_resched() returns 'true', it may actually spin for a much longer time than expected by the idle governor, since set_tsk_need_resched() is not always called by the timer interrupt handler. If that happens, the CPU may spend much more time than anticipated in the "polling" state. To prevent that from happening, limit the time of the spinning loop in poll_idle(). Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Doug Smythies <dsmythies@telus.net>
| * | ARM: cpuidle: Drop memory allocation error message from arm_idle_init_cpu()Markus Elfring2018-03-051-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Omit an extra message for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
* | | Merge branch 'pm-cpufreq'Rafael J. Wysocki2018-04-0238-178/+124
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-cpufreq: (38 commits) cpufreq: CPPC: Use transition_delay_us depending transition_latency cpufreq: tegra186: Don't validate the frequency table twice cpufreq: speedstep: Don't validate the frequency table twice cpufreq: sparc: Don't validate the frequency table twice cpufreq: sh: Don't validate the frequency table twice cpufreq: sfi: Don't validate the frequency table twice cpufreq: scpi: Don't validate the frequency table twice cpufreq: sc520: Don't validate the frequency table twice cpufreq: s3c24xx: Don't validate the frequency table twice cpufreq: qoirq: Don't validate the frequency table twice cpufreq: pxa: Don't validate the frequency table twice cpufreq: ppc_cbe: Don't validate the frequency table twice cpufreq: powernow: Don't validate the frequency table twice cpufreq: p4-clockmod: Don't validate the frequency table twice cpufreq: mediatek: Don't validate the frequency table twice cpufreq: longhaul: Don't validate the frequency table twice cpufreq: ia64-acpi: Don't validate the frequency table twice cpufreq: elanfreq: Don't validate the frequency table twice cpufreq: e_powersaver: Don't validate the frequency table twice cpufreq: cpufreq-dt: Don't validate the frequency table twice ...
| * | | cpufreq: CPPC: Use transition_delay_us depending transition_latencyGeorge Cherian2018-03-301-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With commit e948bc8fbee0 (cpufreq: Cap the default transition delay value to 10 ms) the cpufreq was not honouring the delay passed via ACPI (PCCT). Due to which on ARM based platforms using CPPC the cpufreq governor tries to change the frequency of CPUs faster than expected. This leads to continuous error messages like the following. " ACPI CPPC: PCC check channel failed. Status=0 " Earlier (without above commit) the default transition delay was taken form the value passed from PCCT. Use the same value provided by PCCT to set the transition_delay_us. Fixes: e948bc8fbee0 (cpufreq: Cap the default transition delay value to 10 ms) Signed-off-by: George Cherian <george.cherian@cavium.com> Cc: 4.14+ <stable@vger.kernel.org> # 4.14+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: tegra186: Don't validate the frequency table twiceViresh Kumar2018-03-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from tegra186 driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: speedstep: Don't validate the frequency table twiceViresh Kumar2018-03-203-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from speedstep driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: sparc: Don't validate the frequency table twiceViresh Kumar2018-03-202-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from sparc driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: sh: Don't validate the frequency table twiceViresh Kumar2018-03-201-10/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from sh-cpufreq driver. The driver though prints the min/max frequency values and the same is done from the ->ready() callback now to keep the behavior unchanged. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: sfi: Don't validate the frequency table twiceViresh Kumar2018-03-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from sfi driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: scpi: Don't validate the frequency table twiceViresh Kumar2018-03-201-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from scpi driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: sc520: Don't validate the frequency table twiceViresh Kumar2018-03-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from sc520 driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: s3c24xx: Don't validate the frequency table twiceViresh Kumar2018-03-201-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from s3c24xx driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: qoirq: Don't validate the frequency table twiceViresh Kumar2018-03-201-11/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from qoirq driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: pxa: Don't validate the frequency table twiceViresh Kumar2018-03-202-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from pxa driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: ppc_cbe: Don't validate the frequency table twiceViresh Kumar2018-03-201-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from ppc_cbe driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: powernow: Don't validate the frequency table twiceViresh Kumar2018-03-203-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from powernow driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: p4-clockmod: Don't validate the frequency table twiceViresh Kumar2018-03-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from p4-clockmod driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: mediatek: Don't validate the frequency table twiceViresh Kumar2018-03-201-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from mediatek driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: longhaul: Don't validate the frequency table twiceViresh Kumar2018-03-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from longhaul driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: ia64-acpi: Don't validate the frequency table twiceViresh Kumar2018-03-201-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from ia64-acpi driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: elanfreq: Don't validate the frequency table twiceViresh Kumar2018-03-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from elanfreq driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: e_powersaver: Don't validate the frequency table twiceViresh Kumar2018-03-201-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from e_powersaver driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: cpufreq-dt: Don't validate the frequency table twiceViresh Kumar2018-03-201-7/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from cpufreq-dt driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: brcmstb: Don't validate the frequency table twiceViresh Kumar2018-03-201-5/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from brcmstb driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: arm_big_little: Don't validate the frequency table twiceViresh Kumar2018-03-201-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from arm_big_little driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: ACPI: Don't validate the frequency table twiceViresh Kumar2018-03-201-9/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table in the acpi-cpufreq driver. The driver needs to crosscheck if the max frequency corresponds to the P-state 0 or not and the same is done from the ->ready() callback now. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: Don't validate cpufreq table from cpufreq_generic_init()Viresh Kumar2018-03-201-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq table is already validated by the cpufreq core and none of the users of cpufreq_generic_init() have any dependency on it to validate the table as well. Don't validate the cpufreq table anymore from cpufreq_generic_init(). Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: imx6q: Find max freq from frequency table itselfViresh Kumar2018-03-201-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a preparatory commit to make policy->suspend_freq independent of validation of the cpufreq table, as a later commit would update cpufreq_generic_init() to not validate the cpufreq table any longer. The driver already assumes the order in which the frequency table is sorted and we can get the max frequency easily. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: scpi: Add thermal dependencyArnd Bergmann2018-03-201-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A built-in scpi cpufreq driver cannot link against a modular thermal framework: drivers/cpufreq/scpi-cpufreq.o: In function `scpi_cpufreq_ready': scpi-cpufreq.c:(.text+0x4c): undefined reference to `of_cpufreq_cooling_register' drivers/cpufreq/scpi-cpufreq.o: In function `scpi_cpufreq_exit': scpi-cpufreq.c:(.text+0x9c): undefined reference to `cpufreq_cooling_unregister' This adds a Kconfig dependency that makes sure this configuration is not possible, while allowing all configurations that can work. Note that disabling CPU_THERMAL means we don't care about the THERMAL dependency. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: cppc_cpufreq: Fix cppc_cpufreq_init() failure pathChunyu Hu2018-03-201-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kmemleak reported the below leak. When cppc_cpufreq_init went into failure path, the cpu mask is not freed. After fix, this report is gone. And to avaoid potential NULL pointer reference, check the cpu value first. unreferenced object 0xffff800fd5ea4880 (size 128): comm "swapper/0", pid 1, jiffies 4294939510 (age 668.680s) hex dump (first 32 bytes): 00 00 00 00 20 00 00 00 00 00 00 00 00 00 00 00 .... ........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffff0000082c4ae4>] __kmalloc_node+0x278/0x634 [<ffff0000088f4a74>] alloc_cpumask_var_node+0x28/0x60 [<ffff0000088f4af0>] zalloc_cpumask_var+0x14/0x1c [<ffff000008d20254>] cppc_cpufreq_init+0xd0/0x19c [<ffff000008083828>] do_one_initcall+0xec/0x15c [<ffff000008cd1018>] kernel_init_freeable+0x1f4/0x2a4 [<ffff0000089099b0>] kernel_init+0x18/0x10c [<ffff000008084d50>] ret_from_fork+0x10/0x18 [<ffffffffffffffff>] 0xffffffffffffffff Signed-off-by: Chunyu Hu <chuhu@redhat.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | cpufreq: powernv: Don't validate the frequency table twiceViresh Kumar2018-03-191-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The cpufreq core is already validating the CPU frequency table after calling the ->init() callback of the cpufreq drivers and the drivers don't need to do the same anymore. Though they need to set the policy->freq_table field directly from the ->init() callback now. Stop validating the frequency table from powernv driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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| *-. \ \ Merge cpufreq fixes from v4.16-rc4.Rafael J. Wysocki2018-03-053-8/+22
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| * | | | | cpufreq: powernow-k8: Drop unnecessary return statements from two functionsMarkus Elfring2018-02-271-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The script "checkpatch.pl" pointed information out like the following. WARNING: void function return statements are not generally useful Thus remove such a statement in the affected functions. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: powernow-k8: Drop memory allocation error messages from three functionsMarkus Elfring2018-02-271-9/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Omit an extra message for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: qoriq: Drop memory allocation error messages from ↵Markus Elfring2018-02-271-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | qoriq_cpufreq_cpu_init() Omit extra messages for a memory allocation failure in this function. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: s3c24xx: Drop memory allocation error messages from two functionsMarkus Elfring2018-02-271-6/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Omit an extra message for a memory allocation failure in these functions. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: tegra186: Break after initialization is done for policy->cpuViresh Kumar2018-02-271-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are two clusters (2 + 4 CPUs) on this platform and a separate cpufreq policy is available for each of the CPUs. The loop in tegra186_cpufreq_init() tries to find the structure for the right CPU and finish initialization. But it is missing a `break` statement at the end, which forces it to restart the loop even when the CPU already matched and initialization is done. Fix that by adding the missing `break` statement. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: Validate frequency table in the coreViresh Kumar2018-02-273-5/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | By design, cpufreq drivers are responsible for calling cpufreq_frequency_table_cpuinfo() from their ->init() callbacks to validate the frequency table. However, if a cpufreq driver is buggy and fails to do so properly, it lead to unexpected behavior of the driver or the cpufreq core at a later point in time. It would be better if the core could validate the frequency table during driver initialization. To that end, introduce cpufreq_table_validate_and_sort() and make the cpufreq core call it right after invoking the ->init() callback of the driver and destroy the cpufreq policy if the table is invalid. For the time being the validation of the table happens twice, once from the driver and then from the core. The individual drivers will be updated separately to drop table validation if they don't need it for other reasons. The frequency table is marked "sorted" or "unsorted" by the new helper now instead of in cpufreq_table_validate_and_show(), as it should only be done after validating the table (which the drivers won't do going forward). Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [ rjw: Subject/changelog ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: Reorder cpufreq_online() error code pathViresh Kumar2018-02-271-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ideally the de-allocation of resources should happen in the exact opposite order in which they were allocated. It helps maintain the code in long term, even if nothing really breaks with incorrect ordering. That wasn't followed in cpufreq_online() and it has some inconsistencies. For example, the symlinks were created from within the locked region while they are removed only after putting the locks. Also ->exit() should have been called only after the symlinks are removed and the lock is dropped, as that was the case when ->init() was first called. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | cpufreq: mediatek: Convert pr_warn() to pr_debug()Viresh Kumar2018-02-271-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With multi-platform build images, this shows a message on non mediatek platforms, which is unnecessary. Convert pr_warn() to pr_debug() here. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | dt-bindings: cpufreq-dt: Remove "cooling-{min|max}-level" propertiesViresh Kumar2018-02-271-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "cooling-min-level" and "cooling-max-level" properties are not parsed by any part of kernel currently and the max cooling state of a CPU cooling device is found by referring to the cpufreq table instead. Remove the unused bindings. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
| * | | | | ARM: dts: mt7623: Remove "cooling-{min|max}-level" for CPU nodesViresh Kumar2018-02-272-6/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "cooling-min-level" and "cooling-max-level" properties are not parsed by any part of the kernel currently and the max cooling state of a CPU cooling device is found by referring to the cpufreq table instead. Remove the unused properties from the CPU nodes. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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*---. \ \ \ \ \ Merge branches 'pm-core', 'pm-sleep' and 'acpi-pm'Rafael J. Wysocki2018-04-0211-31/+106
|\ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * pm-core: driver core: Introduce device links reference counting PM / wakeirq: Add wakeup name to dedicated wake irqs * pm-sleep: PM / hibernate: Change message when writing to /sys/power/resume PM / hibernate: Make passing hibernate offsets more friendly PCMCIA / PM: Avoid noirq suspend aborts during suspend-to-idle * acpi-pm: ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA ACPI / PM: Allow deeper wakeup power states with no _SxD nor _SxW ACPI / PM: Reduce LPI constraints logging noise ACPI / PM: Do not reconfigure GPEs for suspend-to-idle