- 17 Jan, 2014 13 commits
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Lukasz Majewski authored
Since the support for software and hardware controlled boosting has been added, update the corresponding documentation. Signed-off-by:
Lukasz Majewski <l.majewski@samsung.com> Signed-off-by:
Myungjoo Ham <myungjoo.ham@samsung.com> Acked-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Lukasz Majewski authored
The cpufreq_driver's boost_supported flag is true only when boost support is explicitly enabled. Boost related attributes are exported only under the same condition. Signed-off-by:
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Lukasz Majewski authored
Add CONFIG_CPU_FREQ_BOOST_SW Kconfig option such that software-managed boost is enabled only after selecting "EXYNOS Frequency Overclocking - Software". It also depends on the thermal subsystem to be compiled in, which is necessary for disabling boost and cooling down the device when overheating is detected. Software-managed boost _MUST_ _NOT_ be enabled without thermal subsystem with properly defined overheating temperature thresholds. This option doesn't affect the x86's hardware-driven boost support in the acpi-cpufreq driver. Signed-off-by:
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Lukasz Majewski authored
Modify acpi-cpufreq's hardware-based boost solution to work with the common cpufreq boost framework. Signed-off-by:
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Lukasz Majewski authored
This commit adds boost frequency support in cpufreq core (Hardware & Software). Some SoCs (like Exynos4 - e.g. 4x12) allow setting frequency above its normal operation limits. Such mode shall be only used for a short time. Overclocking (boost) support is essentially provided by platform dependent cpufreq driver. This commit unifies support for SW and HW (Intel) overclocking solutions in the core cpufreq driver. Previously the "boost" sysfs attribute was defined in the ACPI processor driver code. By default boost is disabled. One global attribute is available at: /sys/devices/system/cpu/cpufreq/boost. It only shows up when cpufreq driver supports overclocking. Under the hood frequencies dedicated for boosting are marked with a special flag (CPUFREQ_BOOST_FREQ) at driver's frequency table. It is the user's concern to enable/disable overclocking with a proper call to sysfs. The cpufreq_boost_trigger_state() function is defined non static on purpose. It is used later with thermal subsystem to provide automatic enable/disable of the BOOST feature. Signed-off-by:
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Dirk Brandewie authored
Add perf trace event "power:pstate_sample" to report driver state to aid in diagnosing issues reported against intel_pstate. Signed-off-by:
Dirk Brandewie <dirk.j.brandewie@intel.com> Signed-off-by:
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Viresh Kumar authored
CPUFreq drivers that use clock frameworks interface,i.e. clk_get_rate(), to get CPUs clk rate, have similar sort of code used in most of them. This patch adds a generic ->get() which will do the same thing for them. All those drivers are required to now is to set .get to cpufreq_generic_get() and set their clk pointer in policy->clk during ->init(). Acked-by:
Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by:
Shawn Guo <shawn.guo@linaro.org> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Acked-by:
Stephen Warren <swarren@nvidia.com> Signed-off-by:
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Viresh Kumar authored
There are some parts of common kernel which would be using routines like clk_get_rate() on some platforms. Currently, they wouldn't be called for SA1100 boards, but they are needed for successful kernel compilation. Create a dummy clk_get_rate() routine for SA1100 which can be called by the cpufreq core. More dummy routines might be added later if necessary. Cc: Russell King <linux@arm.linux.org.uk> Cc: Arnd Bergmann <arnd.bergmann@linaro.org> Reported-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Viresh Kumar authored
When cpufreq_stats is compiled in as a module, cpufreq driver would have already been registered. And so the CPUFREQ_CREATE_POLICY notifiers wouldn't be called for it. Hence no sysfs entries for stats. :( This patch calls cpufreq_stats_create_table() for each online CPU from cpufreq_stats_init() and so if policy is already created for CPUx then we will register sysfs stats for it. When its not compiled as module, we will return early as policy wouldn't be found for any of the CPUs. Acked-by:
Nicolas Pitre <nico@linaro.org> Tested-by:
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Viresh Kumar authored
We don't have code paths now where we need to do these two things separately, so it is better do them in a single routine. Just as they are allocated in a single routine. Acked-by:
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Viresh Kumar authored
Either CPUs are hot-unplugged or suspend/resume occurs, cpufreq core will send notifications to cpufreq-stats and stats structure and sysfs entries would be correctly handled.. And so we don't actually need hotcpu notifiers in cpufreq-stats anymore. We were only handling cpu hot-unplug events here and that are already taken care of by POLICY notifiers. Acked-by:
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Viresh Kumar authored
There are several problems with cpufreq stats in the way it handles cpufreq_unregister_driver() and suspend/resume.. - We must not lose data collected so far when suspend/resume happens and so stats directories must not be removed/allocated during these operations, which is done currently. - cpufreq_stat has registered notifiers with both cpufreq and hotplug. It adds sysfs stats directory with a cpufreq notifier: CPUFREQ_NOTIFY and removes this directory with a notifier from hotplug core. In case cpufreq_unregister_driver() is called (on rmmod cpufreq driver), stats directories per cpu aren't removed as CPUs are still online. The only call cpufreq_stats gets is cpufreq_stats_update_policy_cpu() for all CPUs except the last of each policy. And pointer to stat information is stored in the entry for last CPU in the per-cpu cpufreq_stats_table. But policy structure would be freed inside cpufreq core and so that will result in memory leak inside cpufreq stats (as we are never freeing memory for stats). Now if we again insert the module cpufreq_register_driver() will be called and we will again allocate stats data and put it on for first CPU of every policy. In case we only have a single CPU per policy, we will return with a error from cpufreq_stats_create_table() due to this code: if (per_cpu(cpufreq_stats_table, cpu)) return -EBUSY; And so probably cpufreq stats directory would not show up anymore (as it was added inside last policies->kobj which doesn't exist anymore). I haven't tested it, though. Also the values in stats files wouldn't be refreshed as we are using the earlier stats structure. - CPUFREQ_NOTIFY is called from cpufreq_set_policy() which is called for scenarios where we don't really want cpufreq_stat_notifier_policy() to get called. For example whenever we are changing anything related to a policy: min/max/current freq, etc. cpufreq_set_policy() is called and so cpufreq stats is notified. Where we don't do any useful stuff other than simply returning with -EBUSY from cpufreq_stats_create_table(). And so this isn't the right notifier that cpufreq stats.. Due to all above reasons this patch does following changes: - Add new notifiers CPUFREQ_CREATE_POLICY and CPUFREQ_REMOVE_POLICY, which are only called when policy is created/destroyed. They aren't called for suspend/resume paths.. - Use these notifiers in cpufreq_stat_notifier_policy() to create/destory stats sysfs entries. And so cpufreq_unregister_driver() or suspend/resume shouldn't be a problem for cpufreq_stats. - Return early from cpufreq_stat_cpu_callback() for suspend/resume sequence, so that we don't free stats structure. Acked-by:
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Paul Bolle authored
The only caller of speedstep_get_state() was removed in commit d4019f0a ("cpufreq: move freq change notifications to cpufreq core"). So building speedstep-smi.o now triggers a GCC warning: drivers/cpufreq/speedstep-smi.c:148:12: warning: 'speedstep_get_state' defined but not used [-Wunused-function] Remove this unused function. Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Signed-off-by:
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- 14 Jan, 2014 1 commit
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Rafael J. Wysocki authored
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- 06 Jan, 2014 20 commits
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Dirk Brandewie authored
KVM environments do not support APERF/MPERF MSRs. intel_pstate cannot operate without these registers. The previous validity checks in intel_pstate_msrs_not_valid() are insufficent in nested KVMs. References: https://bugzilla.redhat.com/show_bug.cgi?id=1046317Signed-off-by:
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Mikulas Patocka authored
This patch reorders reported frequencies from the highest to the lowest, just like in other frequency drivers. Signed-off-by:
Mikulas Patocka <mpatocka@redhat.com> Acked-by:
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Mikulas Patocka authored
The powernow-k6 driver used to read the initial multiplier from the powernow register. However, there is a problem with this: * If there was a frequency transition before, the multiplier read from the register corresponds to the current multiplier. * If there was no frequency transition since reset, the field in the register always reads as zero, regardless of the current multiplier that is set using switches on the mainboard and that the CPU is running at. The zero value corresponds to multiplier 4.5, so as a consequence, the powernow-k6 driver always assumes multiplier 4.5. For example, if we have 550MHz CPU with bus frequency 100MHz and multiplier 5.5, the powernow-k6 driver thinks that the multiplier is 4.5 and bus frequency is 122MHz. The powernow-k6 driver then sets the multiplier to 4.5, underclocking the CPU to 450MHz, but reports the current frequency as 550MHz. There is no reliable way how to read the initial multiplier. I modified the driver so that it contains a table of known frequencies (based on parameters of existing CPUs and some common overclocking schemes) and sets the multiplier according to the frequency. If the frequency is unknown (because of unusual overclocking or underclocking), the user must supply the bus speed and maximum multiplier as module parameters. This patch should be backported to all stable kernels. If it doesn't apply cleanly, change it, or ask me to change it. Signed-off-by:
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Mikulas Patocka authored
I found out that a system with k6-3+ processor is unstable during network server load. The system locks up or the network card stops receiving. The reason for the instability is the CPU frequency scaling. During frequency transition the processor is in "EPM Stop Grant" state. The documentation says that the processor doesn't respond to inquiry requests in this state. Consequently, coherency of processor caches and bus master devices is not maintained, causing the system instability. This patch flushes the cache during frequency transition. It fixes the instability. Other minor changes: * u64 invalue changed to unsigned long because the variable is 32-bit * move the logic to set the multiplier to a separate function powernow_k6_set_cpu_multiplier * preserve lower 5 bits of the powernow port instead of 4 (the voltage field has 5 bits) * mask interrupts when reading the multiplier, so that the port is not open during other activity (running other kernel code with the port open shouldn't cause any misbehavior, but we should better be safe and keep the port closed) This patch should be backported to all stable kernels. If it doesn't apply cleanly, change it, or ask me to change it. Signed-off-by:
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Ramkumar Ramachandra authored
Add a Documentation/ABI entry for /sys/devices/system/cpu/intel_pstate/max_perf_pct, /sys/devices/system/cpu/intel_pstate/min_perf_pct, and /sys/devices/system/cpu/intel_pstate/no_turbo. Cc: Dirk Brandewie <dirk.brandewie@gmail.com> Cc: Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
Ramkumar Ramachandra <artagnon@gmail.com> Signed-off-by:
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Lukasz Majewski authored
To make the driver multiplatform-friendly, unconditional initialization in an initcall is replaced with a platform driver probed only if respective platform device is registered. Tested at: Exynos4210 (TRATS) and Exynos4412 (TRATS2) Signed-off-by:
Tomasz Figa <t.figa@samsung.com> Signed-off-by:
Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by:
Sachin Kamat <sachin.kamat@linaro.org> Tested-by:
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Viresh Kumar authored
Sometimes boot loaders set CPU frequency to a value outside of frequency table present with cpufreq core. In such cases CPU might be unstable if it has to run on that frequency for long duration of time and so its better to set it to a frequency which is specified in freq-table. This also makes cpufreq stats inconsistent as cpufreq-stats would fail to register because current frequency of CPU isn't found in freq-table. Because we don't want this change to affect boot process badly, we go for the next freq which is >= policy->cur ('cur' must be set by now, otherwise we will end up setting freq to lowest of the table as 'cur' is initialized to zero). In case current frequency doesn't match any frequency from freq-table, we throw warnings to user, so that user can get this fixed in their bootloaders or freq-tables. Reported-by:Carlos Hernandez <ceh@ti.com> Reported-and-tested-by:
Nishanth Menon <nm@ti.com> Signed-off-by:
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Viresh Kumar authored
Sometimes boot loaders set CPU frequency to a value outside of frequency table present with cpufreq core. In such cases CPU might be unstable if it has to run on that frequency for long duration of time and so its better to set it to a frequency which is specified in frequency table. On some systems we can't really say what frequency we're running at the moment and so for these we shouldn't check if we are running at a frequency present in frequency table. And so we really can't force this for all the cpufreq drivers. Hence we are created another flag here: CPUFREQ_NEED_INITIAL_FREQ_CHECK that will be marked by platforms which want to go for this check at boot time. Initially this is done for all ARM platforms but others may follow if required. Signed-off-by:
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John Tobias authored
Add a routine check to see if the platform supplied the OPP table. Incase there's no OPP table exist, it will try to initialise it. It's been tested on iMX6SL board where the platform doesn't have an OPP table. Signed-off-by:
John Tobias <john.tobias.ph@gmail.com> Acked-by:
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Shawn Guo authored
The imx6q-cpufreq driver nowadays is not only running on imx6q but also other i.MX6 series SoCs like imx6dl and imx6sl. Update Kconfig prompt and help text to make it clear to users. Signed-off-by:
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Anson Huang authored
on i.MX6Q, cpu freq change need to follow below flows: 1. each setpoint has different VDDARM, VDDSOC/PU voltage, get the setpoint table from dts; 2. when cpu freq is scaling up, need to increase VDDSOC/PU voltage before VDDARM, if VDDPU is off, no need to change it; 3. when cpu freq is scaling down, need to decrease VDDARM voltage before VDDSOC/PU, if VDDPU is off, no need to change it; normally dts will pass vddsoc/pu freq/volt info to kernel, if not, will use fixed value for vddsoc/pu voltage setting. Signed-off-by:
Anson Huang <b20788@freescale.com> Acked-by:
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Viresh Kumar authored
In the current code, if we fail during a frequency transition, we simply send the POSTCHANGE notification with the old frequency. This isn't enough. One of the core users of these notifications is the code responsible for keeping loops_per_jiffy aligned with frequency changes. And mostly it is written as: if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) { update-loops-per-jiffy... } So, suppose we are changing to a higher frequency and failed during transition, then following will happen: - CPUFREQ_PRECHANGE notification with freq-new > freq-old - CPUFREQ_POSTCHANGE notification with freq-new == freq-old The first one will update loops_per_jiffy and second one will do nothing. Even if we send the 2nd notification by exchanging values of freq-new and old, some users of these notifications might get unstable. This can be fixed by simply calling cpufreq_notify_post_transition() with error code and this routine will take care of sending notifications in the correct order. Signed-off-by: -
Viresh Kumar authored
This introduces a new routine cpufreq_notify_post_transition() which can be used to send POSTCHANGE notification for new freq with or without both {PRE|POST}CHANGE notifications for last freq. This is useful at multiple places, especially for sending transition failure notifications. Signed-off-by: -
Sachin Kamat authored
Use common clock framework (CCF) APIs to set the clock rates instead of direct register manipulation. This now updates the sysfs entry (cpuinfo_cur_freq) correctly which did not reflect the correct value until now. While at it clean up the PLL s-div parameter setting as it is handled by the PLL driver. Signed-off-by:
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Jane Li authored
When a CPU is hot removed we'll cancel all the delayed work items via gov_cancel_work(). Sometimes the delayed work function determines that it should adjust the delay for all other CPUs that the policy is managing. If this scenario occurs, the canceling CPU will cancel its own work but queue up the other CPUs works to run. Commit 3617f2 (cpufreq: Fix timer/workqueue corruption due to double queueing) has tried to fix this, but reading governor_enabled is not protected by cpufreq_governor_lock. Even though od_dbs_timer() checks governor_enabled before gov_queue_work(), this scenario may occur. For example: CPU0 CPU1 ---- ---- cpu_down() ... <work runs> __cpufreq_remove_dev() od_dbs_timer() __cpufreq_governor() policy->governor_enabled policy->governor_enabled = false; cpufreq_governor_dbs() case CPUFREQ_GOV_STOP: gov_cancel_work(dbs_data, policy); cpu0 work is canceled timer is canceled cpu1 work is canceled <waits for cpu1> gov_queue_work(*, *, true); cpu0 work queued cpu1 work queued cpu2 work queued ... cpu1 work is canceled cpu2 work is canceled ... At the end of the GOV_STOP case cpu0 still has a work queued to run although the code is expecting all of the works to be canceled. __cpufreq_remove_dev() will then proceed to re-initialize all the other CPUs works except for the CPU that is going down. The CPUFREQ_GOV_START case in cpufreq_governor_dbs() will trample over the queued work and debugobjects will spit out a warning: WARNING: at lib/debugobjects.c:260 debug_print_object+0x94/0xbc() ODEBUG: init active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x14 Modules linked in: CPU: 1 PID: 1205 Comm: sh Tainted: G W 3.10.0 #200 [<c01144f0>] (unwind_backtrace+0x0/0xf8) from [<c0111d98>] (show_stack+0x10/0x14) [<c0111d98>] (show_stack+0x10/0x14) from [<c01272cc>] (warn_slowpath_common+0x4c/0x68) [<c01272cc>] (warn_slowpath_common+0x4c/0x68) from [<c012737c>] (warn_slowpath_fmt+0x30/0x40) [<c012737c>] (warn_slowpath_fmt+0x30/0x40) from [<c034c640>] (debug_print_object+0x94/0xbc) [<c034c640>] (debug_print_object+0x94/0xbc) from [<c034c7f8>] (__debug_object_init+0xc8/0x3c0) [<c034c7f8>] (__debug_object_init+0xc8/0x3c0) from [<c01360e0>] (init_timer_key+0x20/0x104) [<c01360e0>] (init_timer_key+0x20/0x104) from [<c04872ac>] (cpufreq_governor_dbs+0x1dc/0x68c) [<c04872ac>] (cpufreq_governor_dbs+0x1dc/0x68c) from [<c04833a8>] (__cpufreq_governor+0x80/0x1b0) [<c04833a8>] (__cpufreq_governor+0x80/0x1b0) from [<c0483704>] (__cpufreq_remove_dev.isra.12+0x22c/0x380) [<c0483704>] (__cpufreq_remove_dev.isra.12+0x22c/0x380) from [<c0692f38>] (cpufreq_cpu_callback+0x48/0x5c) [<c0692f38>] (cpufreq_cpu_callback+0x48/0x5c) from [<c014fb40>] (notifier_call_chain+0x44/0x84) [<c014fb40>] (notifier_call_chain+0x44/0x84) from [<c012ae44>] (__cpu_notify+0x2c/0x48) [<c012ae44>] (__cpu_notify+0x2c/0x48) from [<c068dd40>] (_cpu_down+0x80/0x258) [<c068dd40>] (_cpu_down+0x80/0x258) from [<c068df40>] (cpu_down+0x28/0x3c) [<c068df40>] (cpu_down+0x28/0x3c) from [<c068e4c0>] (store_online+0x30/0x74) [<c068e4c0>] (store_online+0x30/0x74) from [<c03a7308>] (dev_attr_store+0x18/0x24) [<c03a7308>] (dev_attr_store+0x18/0x24) from [<c0256fe0>] (sysfs_write_file+0x100/0x180) [<c0256fe0>] (sysfs_write_file+0x100/0x180) from [<c01fec9c>] (vfs_write+0xbc/0x184) [<c01fec9c>] (vfs_write+0xbc/0x184) from [<c01ff034>] (SyS_write+0x40/0x68) [<c01ff034>] (SyS_write+0x40/0x68) from [<c010e200>] (ret_fast_syscall+0x0/0x48) In gov_queue_work(), lock cpufreq_governor_lock before gov_queue_work, and unlock it after __gov_queue_work(). In this way, governor_enabled is guaranteed not changed in gov_queue_work(). Signed-off-by:Jane Li <jiel@marvell.com> Acked-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Sachin Kamat authored
Local variable used only in this file is made static. Signed-off-by:
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Sachin Kamat authored
Local variables used only in this file are made static. Signed-off-by:
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Sachin Kamat authored
The contents of this header file are not referenced in the driver. Remove its inclusion. Signed-off-by:
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Viresh Kumar authored
The arm_big_little cpufreq driver is only used by ARM bigLITTLE platforms and hence must depend on CONFIG_BIG_LITTLE. This was highlighted by Russell earlier when he reported this issue: drivers/built-in.o: In function `bL_cpufreq_set_rate': powercap_sys.c:(.text+0x5ed9a0): undefined reference to `bL_switch_request_cb' Reported-by:
Russell King <linux@arm.linux.org.uk> Signed-off-by:
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Ramkumar Ramachandra authored
The Intel P-state driver is currently undocumented. Add some documentation based on the cover-letter sent with the original series. Cc: Dirk Brandewie <dirk.brandewie@gmail.com> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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- 05 Jan, 2014 1 commit
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Rafael J. Wysocki authored
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- 04 Jan, 2014 1 commit
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Linus Torvalds authored
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- 03 Jan, 2014 2 commits
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git://git.infradead.org/battery-2.6Linus Torvalds authored
Pull battery fixes from Anton Vorontsov: "Two fixes: - fix build error caused by max17042_battery conversion to the regmap API. - fix kernel oops when booting with wakeup_source_activate enabled" * tag 'for-v3.13-fixes' of git://git.infradead.org/battery-2.6: max17042_battery: Fix build errors caused by missing REGMAP_I2C config power_supply: Fix Oops from NULL pointer dereference from wakeup_source_activate -
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull ACPI and PM fixes and new device IDs from Rafael Wysocki: "These commits, except for one, are regression fixes and the remaining one fixes a divide error leading to a kernel panic. The majority of the regressions fixed here were introduced during the 3.12 cycle, one of them is from this cycle and one is older. Specifics: - VGA switcheroo was broken for some users as a result of the ACPI-based PCI hotplug (ACPIPHP) changes in 3.12, because some previously ignored hotplug events started to be handled. The fix causes them to be ignored again. - There are two more issues related to cpufreq's suspend/resume handling changes from the 3.12 cycle addressed by Viresh Kumar's fixes. - intel_pstate triggers a divide error in a timer function if the P-state information it needs is missing during initialization. This leads to kernel panics on nested KVM clients and is fixed by failing the initialization cleanly in those cases. - PCI initalization code changes during the 3.9 cycle uncovered BIOS issues related to ACPI wakeup notifications (some BIOSes send them for devices that aren't supposed to support ACPI wakeup). Work around them by installing an ACPI wakeup notify handler for all PCI devices with ACPI support. - The Calxeda cpuilde driver's probe function is tagged as __init, which is incorrect and causes a section mismatch to occur during build. Fix from Andre Przywara removes the __init tag from there. - During the 3.12 cycle ACPIPHP started to print warnings about missing _ADR for devices that legitimately don't have it. Fix from Toshi Kani makes it only print the warnings where they make sense" * tag 'pm+acpi-3.13-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPIPHP / radeon / nouveau: Fix VGA switcheroo problem related to hotplug intel_pstate: Fail initialization if P-state information is missing ARM/cpuidle: remove __init tag from Calxeda cpuidle probe function PCI / ACPI: Install wakeup notify handlers for all PCI devs with ACPI cpufreq: preserve user_policy across suspend/resume cpufreq: Clean up after a failing light-weight initialization ACPI / PCI / hotplug: Avoid warning when _ADR not present
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- 02 Jan, 2014 2 commits
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm bugfixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: nVMX: Unconditionally uninit the MMU on nested vmexit KVM: x86: Fix APIC map calculation after re-enabling
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Linus Torvalds authored
Merge patches from Andrew Morton: "Ten fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: epoll: do not take the nested ep->mtx on EPOLL_CTL_DEL sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to sh_ksyms_32.c drivers/dma/ioat/dma.c: check DMA mapping error in ioat_dma_self_test() mm/memory-failure.c: transfer page count from head page to tail page after split thp MAINTAINERS: set up proper record for Xilinx Zynq mm: remove bogus warning in copy_huge_pmd() memcg: fix memcg_size() calculation mm: fix use-after-free in sys_remap_file_pages mm: munlock: fix deadlock in __munlock_pagevec() mm: munlock: fix a bug where THP tail page is encountered
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