- 08 Apr, 2016 2 commits
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Rafael J. Wysocki authored
* pm-core: PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs PM / runtime: Document steps for device removal * powercap: powercap: intel_rapl: Add missing Haswell model * pm-tools: tools/power turbostat: work around RC6 counter wrap tools/power turbostat: initial KBL support tools/power turbostat: initial SKX support tools/power turbostat: decode BXT TSC frequency via CPUID tools/power turbostat: initial BXT support tools/power turbostat: print IRTL MSRs tools/power turbostat: SGX state should print only if --debug
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Rafael J. Wysocki authored
* pm-cpufreq: cpufreq: dt: Drop stale comment cpufreq: intel_pstate: Documenation for structures cpufreq: intel_pstate: fix inconsistency in setting policy limits intel_pstate: Avoid extra invocation of intel_pstate_sample() intel_pstate: Do not set utilization update hook too early * pm-cpuidle: intel_idle: Add KBL support intel_idle: Add SKX support intel_idle: Clean up all registered devices on exit. intel_idle: Propagate hot plug errors. intel_idle: Don't overreact to a cpuidle registration failure. intel_idle: Setup the timer broadcast only on successful driver load. intel_idle: Avoid a double free of the per-CPU data. intel_idle: Fix dangling registration on error path. intel_idle: Fix deallocation order on the driver exit path. intel_idle: Remove redundant initialization calls. intel_idle: Fix a helper function's return value. intel_idle: remove useless return from void function. * acpi-cppc: mailbox: pcc: Don't access an unmapped memory address space
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- 07 Apr, 2016 20 commits
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Strashko, Grygorii authored
Now wakeirq stops working for device if wakeup option for this device will be reconfigured through sysfs, like: echo disabled > /sys/devices/platform/extcon_usb1/power/wakeup echo enabled > /sys/devices/platform/extcon_usb1/power/wakeup Once above set of commands is executed the device's wakeup_source opject will be recreated and dev->power.wakeup->wakeirq field will contain NULL. As result, device_wakeup_arm_wake_irqs() will not arm wakeirq for the affected device. Hece, lets try to fix it in the following way: check for dev->wakeirq field when device_wakeup_attach() is called and if !NULL re-attach wakeirq to the device Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
Sometimes the rc6 sysfs counter spontaneously resets, causing turbostat prints a very large number as it tries to calcuate % = 100 * (old - new) / interval When we see (old > new), print ***.**% instead of a bogus huge number. Note that this detection is not fool-proof, as the counter could reset several times and still result in new > old. Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
KBL is similar to SKL Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
SKX has a lot in common with HSX Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
Hard-code BXT ART to 19200MHz, so turbostat --debug can fully enumerate TSC: CPUID(0x15): eax_crystal: 3 ebx_tsc: 186 ecx_crystal_hz: 0 TSC: 1190 MHz (19200000 Hz * 186 / 3 / 1000000) Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
Broxton has a lot in common with SKL Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
Some processors use the Interrupt Response Time Limit (IRTL) MSR value to describe the maximum IRQ response time latency for deep package C-states. (Though others have the register, but do not use it) Lets print it out to give insight into the cases where it is used. IRTL begain in SNB, with PC3/PC6/PC7, and HSW added PC8/PC9/PC10. Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
The CPUID.SGX bit was printed, even if --debug was used Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
KBL is similar to SKL Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Len Brown authored
SKX is similar to BDX Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
This driver registers cpuidle devices when a CPU comes online, but it leaves the registrations in place when a CPU goes offline. The module exit code only unregisters the currently online CPUs, leaving the devices for offline CPUs dangling. This patch changes the driver to clean up all registrations on exit, even those from CPUs that are offline. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
If a cpuidle registration error occurs during the hot plug notifier callback, we should really inform the hot plug machinery instead of just ignoring the error. This patch changes the callback to properly return on error. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
The helper function, intel_idle_cpu_init, registers one new device with the cpuidle layer. If the registration should fail, that function immediately calls intel_idle_cpuidle_devices_uninit() to unregister every last CPU's device. However, it makes no sense to do so, when called from the hot plug notifier callback. This patch moves the call to intel_idle_cpuidle_devices_uninit() outside of the helper function to the one call site that actually needs to perform the de-registrations. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
This driver sets the broadcast tick quite early on during probe and does not clean up again in cast of failure. This patch moves the setup call after the registration, placing the on_each_cpu() calls within the global CPU lock region. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
The helper function, intel_idle_cpuidle_devices_uninit, frees the globally allocated per-CPU data. However, this function is invoked from the hot plug notifier callback at a time when freeing that data is not safe. If the call to cpuidle_register_driver() should fail (say, due to lack of memory), then the driver will free its per-CPU region. On the *next* CPU_ONLINE event, the driver will happily use the region again and even free it again if the failure repeats. This patch fixes the issue by moving the call to free_percpu() outside of the helper function at the two call sites that actually need to free the per-CPU data. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
In the module_init() method, if the per-CPU allocation fails, then the active cpuidle registration is not cleaned up. This patch fixes the issue by attempting the allocation before registration, and then cleaning it up again on registration failure. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
In the module_exit() method, this driver first frees its per-CPU pointer, then unregisters a callback making use of the pointer. Furthermore, the function, intel_idle_cpuidle_devices_uninit, is racy against CPU hot plugging as it calls for_each_online_cpu(). This patch corrects the issues by unregistering first on the exit path while holding the hot plug lock. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
The function, intel_idle_cpuidle_driver_init, makes calls on each CPU to auto_demotion_disable() and c1e_promotion_disable(). These calls are redundant, as intel_idle_cpu_init() does the same calls just a bit later on. They are also premature, as the driver registration may yet fail. This patch removes the redundant code. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
The function, intel_idle_cpuidle_driver_init, delivers no error codes at all. This patch changes the function to return 'void' instead of returning zero. Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Richard Cochran authored
Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 06 Apr, 2016 1 commit
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Shanker Donthineni authored
The acpi_pcc_probe() may end up accessing memory outside of the PCCT table space causing the kernel panic(). Increment the pcct_entry pointer after parsing 'HW-reduced Communications Subspace' to fix the problem. This change also enables the parsing of subtable at index 0. Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org> Acked-by: Ashwin Chaugule <ashwin.chaugule@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 05 Apr, 2016 5 commits
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Krzysztof Kozlowski authored
Put a reminder that during device removal drivers should revert all PM runtime changes from the probe. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Srinivas Pandruvada authored
Added missing model 0x46. Tested-and-reported-by: Piotr Maksymiuk <piotr.maksymiuk@movishell.pl> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Viresh Kumar authored
The comment in file header doesn't hold true anymore, drop it. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Srinivas Pandruvada authored
No code change. Only added kernel doc style comments for structures. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Srinivas Pandruvada authored
When user sets performance policy using cpufreq interface, it is possible that because of policy->max limits, the actual performance is still limited. But the current implementation will silently switch the policy to powersave and start using powersave limits. If user modifies any limits using intel_pstate sysfs, this is actually changing powersave limits. The current implementation tracks limits under powersave and performance policy using two different variables. When policy->max is less than policy->cpuinfo.max_freq, only powersave limit variable is used. This fix causes the performance limits variable to be used always when the policy is performance. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 03 Apr, 2016 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Ingo Molnar: "Misc kernel side fixes: - fix event leak - fix AMD PMU driver bug - fix core event handling bug - fix build bug on certain randconfigs Plus misc tooling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/amd/ibs: Fix pmu::stop() nesting perf/core: Don't leak event in the syscall error path perf/core: Fix time tracking bug with multiplexing perf jit: genelf makes assumptions about endian perf hists: Fix determination of a callchain node's childlessness perf tools: Add missing initialization of perf_sample.cpumode in synthesized samples perf tools: Fix build break on powerpc perf/x86: Move events_sysfs_show() outside CPU_SUP_INTEL perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers perf tests: Fix tarpkg build test error output redirection
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull core kernel fixes from Ingo Molnar: "This contains the nohz/atomic cleanup/fix for the fetch_or() ugliness you noted during the original nohz pull request, plus there's also misc fixes: - fix liblockdep build bug - fix uapi header build bug - print more lockdep hash collision info to help debug recent reports of hash collisions - update MAINTAINERS email address" * 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: MAINTAINERS: Update my email address locking/lockdep: Print chain_key collision information uapi/linux/stddef.h: Provide __always_inline to userspace headers tools/lib/lockdep: Fix unsupported 'basename -s' in run_tests.sh locking/atomic, sched: Unexport fetch_or() timers/nohz: Convert tick dependency mask to atomic_t locking/atomic: Introduce atomic_fetch_or()
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Linus Torvalds authored
Commit 840f5b05 ("media: au0828 disable tuner to demod link in au0828_media_device_register()") removed all uses of the 'dtv_demod', but left the variable itself around. Remove it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "This lot contains: - Some fixups for the fallout of the topology consolidation which unearthed AMD/Intel inconsistencies - Documentation for the x86 topology management - Support for AMD advanced power management bits - Two simple cleanups removing duplicated code" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add advanced power management bits x86/thread_info: Merge two !__ASSEMBLY__ sections x86/cpufreq: Remove duplicated TDP MSR macro definitions x86/Documentation: Start documenting x86 topology x86/cpu: Get rid of compute_unit_id perf/x86/amd: Cleanup Fam10h NB event constraints x86/topology: Fix AMD core count
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- 02 Apr, 2016 7 commits
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git://github.com/andersson/remoteprocLinus Torvalds authored
Pull remoteproc fix from Bjorn Andersson: "Fix incorrect error check in the ST remoteproc driver and advertise the newly created linux-remoteproc mailing list" * tag 'rproc-v4.6-rc1' of git://github.com/andersson/remoteproc: MAINTAINERS: Add mailing list for remote processor subsystems remoteproc: st: fix check of syscon_regmap_lookup_by_phandle() return value
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git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pendingLinus Torvalds authored
Pull SCSI target fixes from Nicholas Bellinger: "This includes fixes from HCH for -rc1 configfs default_groups conversion changes that ended up breaking some iscsi-target default_groups, along with Sagi's ib_drain_qp() conversion for iser-target to use the common caller now available to RDMA kernel consumers in v4.6+ code" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: target: add a new add_wwn_groups fabrics method target: initialize the nacl base CIT begfore init_nodeacl target: remove ->fabric_cleanup_nodeacl iser-target: Use ib_drain_qp
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Linus Torvalds authored
Commit d4edcf0d ("mm/gup: Switch all callers of get_user_pages() to not pass tsk/mm") switched get_user_pages() callers to the simpler model where they no longer pass in the thread and mm pointer. But since then we've merged changes to a few drivers that re-introduce use of the old interface. Let's fix them up. They continued to work fine (thanks to the truly disgusting macros introduced in commit cde70140: "mm/gup: Overload get_user_pages() functions"), but cause unnecessary build noise. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.infradead.org/users/hch/configfsLinus Torvalds authored
Pull configfs fix from Christoph Hellwig: "A trivial fix to the recently introduced binary attribute helper macros" * tag 'configfs-for-linus-2' of git://git.infradead.org/users/hch/configfs: configfs: fix CONFIGFS_BIN_ATTR_[RW]O definitions
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking fixes from David Miller: 1) Missing device reference in IPSEC input path results in crashes during device unregistration. From Subash Abhinov Kasiviswanathan. 2) Per-queue ISR register writes not being done properly in macb driver, from Cyrille Pitchen. 3) Stats accounting bugs in bcmgenet, from Patri Gynther. 4) Lightweight tunnel's TTL and TOS were swapped in netlink dumps, from Quentin Armitage. 5) SXGBE driver has off-by-one in probe error paths, from Rasmus Villemoes. 6) Fix race in save/swap/delete options in netfilter ipset, from Vishwanath Pai. 7) Ageing time of bridge not set properly when not operating over a switchdev device. Fix from Haishuang Yan. 8) Fix GRO regression wrt nested FOU/GUE based tunnels, from Alexander Duyck. 9) IPV6 UDP code bumps wrong stats, from Eric Dumazet. 10) FEC driver should only access registers that actually exist on the given chipset, fix from Fabio Estevam. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (73 commits) net: mvneta: fix changing MTU when using per-cpu processing stmmac: fix MDIO settings Revert "stmmac: Fix 'eth0: No PHY found' regression" stmmac: fix TX normal DESC net: mvneta: use cache_line_size() to get cacheline size net: mvpp2: use cache_line_size() to get cacheline size net: mvpp2: fix maybe-uninitialized warning tun, bpf: fix suspicious RCU usage in tun_{attach, detach}_filter net: usb: cdc_ncm: adding Telit LE910 V2 mobile broadband card rtnl: fix msg size calculation in if_nlmsg_size() fec: Do not access unexisting register in Coldfire net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES net: dsa: mv88e6xxx: Clear the PDOWN bit on setup net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write} bpf: make padding in bpf_tunnel_key explicit ipv6: udp: fix UDP_MIB_IGNOREDMULTI updates bnxt_en: Fix ethtool -a reporting. bnxt_en: Fix typo in bnxt_hwrm_set_pause_common(). bnxt_en: Implement proper firmware message padding. ...
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk fixes from Stephen Boyd: "A handful of const updates for reset ops and a couple fixes to the newly introduced IPQ4019 clock driver" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: qcom: ipq4019: add some fixed clocks for ddrppl and fepll clk: qcom: ipq4019: switch remaining defines to enums clk: qcom: Make reset_control_ops const clk: tegra: Make reset_control_ops const clk: sunxi: Make reset_control_ops const clk: atlas7: Make reset_control_ops const clk: rockchip: Make reset_control_ops const clk: mmp: Make reset_control_ops const clk: mediatek: Make reset_control_ops const
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull power management and ACPI fix from Rafael J. Wysocki: "Just one fix for a nasty boot failure on some systems based on Intel Skylake that shipped with broken firmware where enabling hardware-coordinated P-states management (HWP) causes a faulty interrupt handler in SMM to be invoked and crash the system (Srinivas Pandruvada)" * tag 'pm+acpi-4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / processor: Request native thermal interrupt handling via _OSC
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