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2019-09-21Merge tag 'libnvdimm-for-5.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm updates from Dan Williams: "Some reworks to better support nvdimms on powerpc and an nvdimm security interface update: - Rework the nvdimm core to accommodate architectures with different page sizes and ones that can change supported huge page sizes at boot time rather than a compile time constant. - Introduce a distinct 'frozen' attribute for the nvdimm security state since it is independent of the locked state. - Miscellaneous fixups" * tag 'libnvdimm-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: libnvdimm: Use PAGE_SIZE instead of SZ_4K for align check libnvdimm/label: Remove the dpa align check libnvdimm/pfn_dev: Add page size and struct page size to pfn superblock libnvdimm/pfn_dev: Add a build check to make sure we notice when struct page size change libnvdimm/pmem: Advance namespace seed for specific probe errors libnvdimm/region: Rewrite _probe_success() to _advance_seeds() libnvdimm/security: Consolidate 'security' operations libnvdimm/security: Tighten scope of nvdimm->busy vs security operations libnvdimm/security: Introduce a 'frozen' attribute libnvdimm, region: Use struct_size() in kzalloc() tools/testing/nvdimm: Fix fallthrough warning libnvdimm/of_pmem: Provide a unique name for bus provider
2019-09-18Merge tag 'char-misc-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc driver pull request for 5.4-rc1. As has been happening in previous releases, more and more individual driver subsystem trees are ending up in here. Now if that is good or bad I can't tell, but hopefully it makes your life easier as it's more of an aggregation of trees together to one merge point for you. Anyway, lots of stuff in here: - habanalabs driver updates - thunderbolt driver updates - misc driver updates - coresight and intel_th hwtracing driver updates - fpga driver updates - extcon driver updates - some dma driver updates - char driver updates - android binder driver updates - nvmem driver updates - phy driver updates - parport driver fixes - pcmcia driver fix - uio driver updates - w1 driver updates - configfs fixes - other assorted driver updates All of these have been in linux-next for a long time with no reported issues" * tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (200 commits) misc: mic: Use PTR_ERR_OR_ZERO rather than its implementation habanalabs: correctly cast variable to __le32 habanalabs: show correct id in error print habanalabs: stop using the acronym KMD habanalabs: display card name as sensors header habanalabs: add uapi to retrieve aggregate H/W events habanalabs: add uapi to retrieve device utilization habanalabs: Make the Coresight timestamp perpetual habanalabs: explicitly set the queue-id enumerated numbers habanalabs: print to kernel log when reset is finished habanalabs: replace __le32_to_cpu with le32_to_cpu habanalabs: replace __cpu_to_le32/64 with cpu_to_le32/64 habanalabs: Handle HW_IP_INFO if device disabled or in reset habanalabs: Expose devices after initialization is done habanalabs: improve security in Debug IOCTL habanalabs: use default structure for user input in Debug IOCTL habanalabs: Add descriptive name to PSOC app status register habanalabs: Add descriptive names to PSOC scratch-pad registers habanalabs: create two char devices per ASIC habanalabs: change device_setup_cdev() to be more generic ...
2019-09-17Merge tag 'devprop-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull device properties framework updates from Rafael Wysocki: "Improve software node support (Heikki Krogerus) and clean up two assorted pieces of code (Andy Shevchenko, Geert Uytterhoeven)" * tag 'devprop-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: software node: Initialize the return value in software_node_find_by_name() software node: Initialize the return value in software_node_to_swnode() ACPI / property: Fix acpi_graph_get_remote_endpoint() name in kerneldoc device property: Remove duplicate test for NULL platform/x86: intel_cht_int33fe: Use new API to gain access to the role switch usb: roles: intel_xhci: Supplying software node for the role mux software node: Add software_node_find_by_name()
2019-09-17Merge tag 'acpi-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI updates from Rafael Wysocki: "These include an ACPICA update (to upstream revision 20190816), improvements of support for memory hot-add in the HMAT handling code and some assorted fixes and cleanups. Specifics: - Update the ACPICA code in the kernel to upstream revision 20190816 including: * Internal limits change to support larger systems (Bob Moore). * Macros clean up (Bob Moore). * printf format string fixes (Bob Moore). * Full deployment of the ACPI_PRINTF_LIKE macro (Bob Moore). * Tools improvements (Bob Moore, Colin Ian King). * Windows _OSI support fixes (Jung-uk Kim). - Improve memory hot-add support in the ACPI HMAT handling code (Dan Williams, Keith Busch). - Fix the ACPI LPSS (Low-Power Subsystem) driver for Intel SoCs to save and restore private registers during system-wide suspend and resume on systems with the Lynxpoint PCH (Jarkko Nikula). - Convert the ACPI documentation related to LEDs to ReST (Sakari Ailus). - Fix assorted issues and make assorted minor improvements in the ACPI-related code (Al Stone, Andy Shevchenko, Jiri Slaby, Kelsey Skunberg, Krzysztof Wilczynski, Liguang Zhang, Wenwen Wang, YueHaibing)" * tag 'acpi-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits) ACPI / PCI: fix acpi_pci_irq_enable() memory leak ACPI: custom_method: fix memory leaks ACPI: thermal: Remove redundant acpi_has_method() calls ACPI / CPPC: do not require the _PSD method ACPI: SBS: remove unused const variable 'SMBUS_PEC' ACPI / LPSS: Save/restore LPSS private registers also on Lynxpoint ACPI/PCI: Remove surplus parentheses from a return statement ACPICA: Update version to 20190816. ACPICA: Add "Windows 2019" string to _OSI support. ACPICA: Differentiate Windows 8.1 from Windows 8. ACPICA: Fully deploy ACPI_PRINTF_LIKE macro ACPICA: iASL,acpi_dump: Improve y/n query ACPICA: Fix issues with arg types within printf format strings ACPICA: Macros: remove pointer math on a null pointer ACPICA: Increase total number of possible Owner IDs ACPICA: Debugger: remove redundant assignment on obj_desc Documentation: ACPI: DSD: Convert LED documentation to ReST ACPI / APEI: Release resources if gen_pool_add() fails HMAT: Skip publishing target info for nodes with no online memory HMAT: Register attributes for memory hot add ...
2019-09-17Merge tag 'pm-5.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These include a rework of the main suspend-to-idle code flow (related to the handling of spurious wakeups), a switch over of several users of cpufreq notifiers to QoS-based limits, a new devfreq driver for Tegra20, a new cpuidle driver and governor for virtualized guests, an extension of the wakeup sources framework to expose wakeup sources as device objects in sysfs, and more. Specifics: - Rework the main suspend-to-idle control flow to avoid repeating "noirq" device resume and suspend operations in case of spurious wakeups from the ACPI EC and decouple the ACPI EC wakeups support from the LPS0 _DSM support (Rafael Wysocki). - Extend the wakeup sources framework to expose wakeup sources as device objects in sysfs (Tri Vo, Stephen Boyd). - Expose system suspend statistics in sysfs (Kalesh Singh). - Introduce a new haltpoll cpuidle driver and a new matching governor for virtualized guests wanting to do guest-side polling in the idle loop (Marcelo Tosatti, Joao Martins, Wanpeng Li, Stephen Rothwell). - Fix the menu and teo cpuidle governors to allow the scheduler tick to be stopped if PM QoS is used to limit the CPU idle state exit latency in some cases (Rafael Wysocki). - Increase the resolution of the play_idle() argument to microseconds for more fine-grained injection of CPU idle cycles (Daniel Lezcano). - Switch over some users of cpuidle notifiers to the new QoS-based frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events (Viresh Kumar). - Add new cpufreq driver based on nvmem for sun50i (Yangtao Li). - Add support for MT8183 and MT8516 to the mediatek cpufreq driver (Andrew-sh.Cheng, Fabien Parent). - Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson Huang). - Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz). - Update the qcom cpufreq driver (among other things, to make it easier to extend and to use kryo cpufreq for other nvmem-based SoCs) and add qcs404 support to it (Niklas Cassel, Douglas RAILLARD, Sibi Sankar, Sricharan R). - Fix assorted issues and make assorted minor improvements in the cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli, Gustavo Silva, Hariprasad Kelam). - Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd Bergmann). - Add new Exynos PPMU events to devfreq events and extend that mechanism (Lukasz Luba). - Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny). - Improve devfreq documentation and governor code, fix spelling typos in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard Crestez, MyungJoo Ham, Gaël PORTAY). - Add regulators enable and disable to the OPP (operating performance points) framework (Kamil Konieczny). - Update the OPP framework to support multiple opp-suspend properties (Anson Huang). - Fix assorted issues and make assorted minor improvements in the OPP code (Niklas Cassel, Viresh Kumar, Yue Hu). - Clean up the generic power domains (genpd) framework (Ulf Hansson). - Clean up assorted pieces of power management code and documentation (Akinobu Mita, Amit Kucheria, Chuhong Yuan). - Update the pm-graph tool to version 5.5 including multiple fixes and improvements (Todd Brandt). - Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven, Sébastien Szymanski)" * tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (126 commits) cpuidle-haltpoll: Enable kvm guest polling when dedicated physical CPUs are available cpuidle-haltpoll: do not set an owner to allow modunload cpuidle-haltpoll: return -ENODEV on modinit failure cpuidle-haltpoll: set haltpoll as preferred governor cpuidle: allow governor switch on cpuidle_register_driver() PM: runtime: Documentation: add runtime_status ABI document pm-graph: make setVal unbuffered again for python2 and python3 powercap: idle_inject: Use higher resolution for idle injection cpuidle: play_idle: Increase the resolution to usec cpuidle-haltpoll: vcpu hotplug support cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist cpufreq: qcom: Add support for qcs404 on nvmem driver cpufreq: qcom: Refactor the driver to make it easier to extend cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain Documentation: cpufreq: Update policy notifier documentation cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state() PM / Domains: Simplify genpd_lookup_dev() ...
2019-09-17Merge branches 'acpi-misc' and 'acpi-doc'Rafael J. Wysocki
* acpi-misc: ACPI: thermal: Remove redundant acpi_has_method() calls ACPI: SBS: remove unused const variable 'SMBUS_PEC' * acpi-doc: Documentation: ACPI: DSD: Convert LED documentation to ReST
2019-09-17Merge branches 'acpi-apei', 'acpi-processor', 'acpi-tables', 'acpi-pci' and ↵Rafael J. Wysocki
'acpi-soc' * acpi-apei: ACPI / APEI: Release resources if gen_pool_add() fails ACPI / APEI: Get rid of NULL_UUID_LE constant * acpi-processor: ACPI / processor: don't print errors for processorIDs == 0xff * acpi-tables: ACPI: custom_method: fix memory leaks HMAT: Skip publishing target info for nodes with no online memory HMAT: Register attributes for memory hot add HMAT: Register memory-side cache after parsing * acpi-pci: ACPI / PCI: fix acpi_pci_irq_enable() memory leak ACPI/PCI: Remove surplus parentheses from a return statement * acpi-soc: ACPI / LPSS: Save/restore LPSS private registers also on Lynxpoint
2019-09-17Merge branch 'acpica'Rafael J. Wysocki
* acpica: ACPICA: Update version to 20190816. ACPICA: Add "Windows 2019" string to _OSI support. ACPICA: Differentiate Windows 8.1 from Windows 8. ACPICA: Fully deploy ACPI_PRINTF_LIKE macro ACPICA: iASL,acpi_dump: Improve y/n query ACPICA: Fix issues with arg types within printf format strings ACPICA: Macros: remove pointer math on a null pointer ACPICA: Increase total number of possible Owner IDs ACPICA: Debugger: remove redundant assignment on obj_desc
2019-09-17Merge branches 'pm-opp', 'pm-qos', 'acpi-pm', 'pm-domains' and 'pm-tools'Rafael J. Wysocki
* pm-opp: PM / OPP: Correct Documentation about library location opp: of: Support multiple suspend OPPs defined in DT dt-bindings: opp: Support multiple opp-suspend properties opp: core: add regulators enable and disable opp: Don't decrement uninitialized list_kref * pm-qos: PM: QoS: Get rid of unused flags * acpi-pm: ACPI: PM: Print debug messages on device power state changes * pm-domains: PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state() PM / Domains: Simplify genpd_lookup_dev() PM / Domains: Align in-parameter names for some genpd functions * pm-tools: pm-graph: make setVal unbuffered again for python2 and python3 cpupower: update German translation tools/power/cpupower: fix 64bit detection when cross-compiling cpupower: Add missing newline at end of file pm-graph v5.5
2019-09-17Merge branch 'pm-cpufreq'Rafael J. Wysocki
* pm-cpufreq: (36 commits) cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist cpufreq: qcom: Add support for qcs404 on nvmem driver cpufreq: qcom: Refactor the driver to make it easier to extend cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain Documentation: cpufreq: Update policy notifier documentation cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events sched/cpufreq: Align trace event behavior of fast switching ACPI: cpufreq: Switch to QoS requests instead of cpufreq notifier video: pxafb: Remove cpufreq policy notifier video: sa1100fb: Remove cpufreq policy notifier arch_topology: Use CPUFREQ_CREATE_POLICY instead of CPUFREQ_NOTIFY cpufreq: powerpc_cbe: Switch to QoS requests for freq limits cpufreq: powerpc: macintosh: Switch to QoS requests for freq limits cpufreq: Print driver name if cpufreq_suspend() fails cpufreq: mediatek: Add support for mt8183 cpufreq: mediatek: change to regulator_get_optional cpufreq: imx-cpufreq-dt: Add i.MX8MN support cpufreq: Use imx-cpufreq-dt for i.MX8MN's speed grading ...
2019-09-17Merge suspend-to-idle rework material for v5.4.Rafael J. Wysocki
* pm-s2idle-rework: (21 commits) ACPI: PM: s2idle: Always set up EC GPE for system wakeup ACPI: PM: s2idle: Avoid rearming SCI for wakeup unnecessarily PM: suspend: Fix platform_suspend_prepare_noirq() intel-hid: Disable button array during suspend-to-idle intel-hid: intel-vbtn: Avoid leaking wakeup_mode set ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devices ACPI: EC: PM: Make acpi_ec_dispatch_gpe() print debug message ACPI: EC: PM: Consolidate some code depending on PM_SLEEP ACPI: PM: s2idle: Eliminate acpi_sleep_no_ec_events() ACPI: PM: s2idle: Switch EC over to polling during "noirq" suspend ACPI: PM: s2idle: Add acpi.sleep_no_lps0 module parameter ACPI: PM: s2idle: Rearrange lps0_device_attach() ACPI: PM: Set up EC GPE for system wakeup from drivers that need it PM: sleep: Drop dpm_noirq_begin() and dpm_noirq_end() PM: sleep: Integrate suspend-to-idle with generig suspend flow PM: sleep: Simplify suspend-to-idle control flow ACPI: PM: Set s2idle_wakeup earlier and clear it later PM: sleep: Fix possible overflow in pm_system_cancel_wakeup() ACPI: EC: Return bool from acpi_ec_dispatch_gpe() ACPICA: Return u32 from acpi_dispatch_gpe() ...
2019-09-16Merge branch 'x86-cpu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 cpu-feature updates from Ingo Molnar: - Rework the Intel model names symbols/macros, which were decades of ad-hoc extensions and added random noise. It's now a coherent, easy to follow nomenclature. - Add new Intel CPU model IDs: - "Tiger Lake" desktop and mobile models - "Elkhart Lake" model ID - and the "Lightning Mountain" variant of Airmont, plus support code - Add the new AVX512_VP2INTERSECT instruction to cpufeatures - Remove Intel MPX user-visible APIs and the self-tests, because the toolchain (gcc) is not supporting it going forward. This is the first, lowest-risk phase of MPX removal. - Remove X86_FEATURE_MFENCE_RDTSC - Various smaller cleanups and fixes * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (25 commits) x86/cpu: Update init data for new Airmont CPU model x86/cpu: Add new Airmont variant to Intel family x86/cpu: Add Elkhart Lake to Intel family x86/cpu: Add Tiger Lake to Intel family x86: Correct misc typos x86/intel: Add common OPTDIFFs x86/intel: Aggregate microserver naming x86/intel: Aggregate big core graphics naming x86/intel: Aggregate big core mobile naming x86/intel: Aggregate big core client naming x86/cpufeature: Explain the macro duplication x86/ftrace: Remove mcount() declaration x86/PCI: Remove superfluous returns from void functions x86/msr-index: Move AMD MSRs where they belong x86/cpu: Use constant definitions for CPU models lib: Remove redundant ftrace flag removal x86/crash: Remove unnecessary comparison x86/bitops: Use __builtin_constant_p() directly instead of IS_IMMEDIATE() x86: Remove X86_FEATURE_MFENCE_RDTSC x86/mpx: Remove MPX APIs ...
2019-09-16Merge branch 'core-rcu-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull RCU updates from Ingo Molnar: "This cycle's RCU changes were: - A few more RCU flavor consolidation cleanups. - Updates to RCU's list-traversal macros improving lockdep usability. - Forward-progress improvements for no-CBs CPUs: Avoid ignoring incoming callbacks during grace-period waits. - Forward-progress improvements for no-CBs CPUs: Use ->cblist structure to take advantage of others' grace periods. - Also added a small commit that avoids needlessly inflicting scheduler-clock ticks on callback-offloaded CPUs. - Forward-progress improvements for no-CBs CPUs: Reduce contention on ->nocb_lock guarding ->cblist. - Forward-progress improvements for no-CBs CPUs: Add ->nocb_bypass list to further reduce contention on ->nocb_lock guarding ->cblist. - Miscellaneous fixes. - Torture-test updates. - minor LKMM updates" * 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (86 commits) MAINTAINERS: Update from paulmck@linux.ibm.com to paulmck@kernel.org rcu: Don't include <linux/ktime.h> in rcutiny.h rcu: Allow rcu_do_batch() to dynamically adjust batch sizes rcu/nocb: Don't wake no-CBs GP kthread if timer posted under overload rcu/nocb: Reduce __call_rcu_nocb_wake() leaf rcu_node ->lock contention rcu/nocb: Reduce nocb_cb_wait() leaf rcu_node ->lock contention rcu/nocb: Advance CBs after merge in rcutree_migrate_callbacks() rcu/nocb: Avoid synchronous wakeup in __call_rcu_nocb_wake() rcu/nocb: Print no-CBs diagnostics when rcutorture writer unduly delayed rcu/nocb: EXP Check use and usefulness of ->nocb_lock_contended rcu/nocb: Add bypass callback queueing rcu/nocb: Atomic ->len field in rcu_segcblist structure rcu/nocb: Unconditionally advance and wake for excessive CBs rcu/nocb: Reduce ->nocb_lock contention with separate ->nocb_gp_lock rcu/nocb: Reduce contention at no-CBs invocation-done time rcu/nocb: Reduce contention at no-CBs registry-time CB advancement rcu/nocb: Round down for number of no-CBs grace-period kthreads rcu/nocb: Avoid ->nocb_lock capture by corresponding CPU rcu/nocb: Avoid needless wakeups of no-CBs grace-period kthread rcu/nocb: Make __call_rcu_nocb_wake() safe for many callbacks ...
2019-09-16Merge tag 'please-pull-ia64_for_5.4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux Pull ia64 updates from Tony Luck: "The big change here is removal of support for SGI Altix" * tag 'please-pull-ia64_for_5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux: (33 commits) genirq: remove the is_affinity_mask_valid hook ia64: remove CONFIG_SWIOTLB ifdefs ia64: remove support for machvecs ia64: move the screen_info setup to common code ia64: move the ROOT_DEV setup to common code ia64: rework iommu probing ia64: remove the unused sn_coherency_id symbol ia64: remove the SGI UV simulator support ia64: remove the zx1 swiotlb machvec ia64: remove CONFIG_ACPI ifdefs ia64: remove CONFIG_PCI ifdefs ia64: remove the hpsim platform ia64: remove now unused machvec indirections ia64: remove support for the SGI SN2 platform drivers: remove the SGI SN2 IOC4 base support drivers: remove the SGI SN2 IOC3 base support qla2xxx: remove SGI SN2 support qla1280: remove SGI SN2 support misc/sgi-xp: remove SGI SN2 support char/mspec: remove SGI SN2 support ...
2019-09-03ACPI / PCI: fix acpi_pci_irq_enable() memory leakWenwen Wang
In acpi_pci_irq_enable(), 'entry' is allocated by kzalloc() in acpi_pci_irq_check_entry() (invoked from acpi_pci_irq_lookup()). However, it is not deallocated if acpi_pci_irq_valid() returns false, leading to a memory leak. To fix this issue, free 'entry' before returning 0. Fixes: e237a5518425 ("x86/ACPI/PCI: Recognize that Interrupt Line 255 means "not connected"") Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-09-02ACPI: custom_method: fix memory leaksWenwen Wang
In cm_write(), 'buf' is allocated through kzalloc(). In the following execution, if an error occurs, 'buf' is not deallocated, leading to memory leaks. To fix this issue, free 'buf' before returning the error. Fixes: 526b4af47f44 ("ACPI: Split out custom_method functionality into an own driver") Signed-off-by: Wenwen Wang <wenwen@cs.uga.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-09-02ACPI: thermal: Remove redundant acpi_has_method() callsKelsey Skunberg
The following acpi_has_method() calls are unnecessary since acpi_execute_simple_method() and acpi_evaluate_reference() will return an error if the given method does not exist. Remove acpi_has_method() calls to avoid additional work. Signed-off-by: Kelsey Skunberg <skunberg.kelsey@gmail.com> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-09-02ACPI / property: Fix acpi_graph_get_remote_endpoint() name in kerneldocGeert Uytterhoeven
The function is called acpi_graph_get_remote_endpoint(), not acpi_graph_get_remote_enpoint(). Fixes: 79389a83bc3888a9 ("ACPI / property: Add support for remote endpoints") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-30Merge branches 'for-next/52-bit-kva', 'for-next/cpu-topology', ↵Will Deacon
'for-next/error-injection', 'for-next/perf', 'for-next/psci-cpuidle', 'for-next/rng', 'for-next/smpboot', 'for-next/tbi' and 'for-next/tlbi' into for-next/core * for-next/52-bit-kva: (25 commits) Support for 52-bit virtual addressing in kernel space * for-next/cpu-topology: (9 commits) Move CPU topology parsing into core code and add support for ACPI 6.3 * for-next/error-injection: (2 commits) Support for function error injection via kprobes * for-next/perf: (8 commits) Support for i.MX8 DDR PMU and proper SMMUv3 group validation * for-next/psci-cpuidle: (7 commits) Move PSCI idle code into a new CPUidle driver * for-next/rng: (4 commits) Support for 'rng-seed' property being passed in the devicetree * for-next/smpboot: (3 commits) Reduce fragility of secondary CPU bringup in debug configurations * for-next/tbi: (10 commits) Introduce new syscall ABI with relaxed requirements for pointer tags * for-next/tlbi: (6 commits) Handle spurious page faults arising from kernel space
2019-08-29libnvdimm/security: Introduce a 'frozen' attributeDan Williams
In the process of debugging a system with an NVDIMM that was failing to unlock it was found that the kernel is reporting 'locked' while the DIMM security interface is 'frozen'. Unfortunately the security state is tracked internally as an enum which prevents it from communicating the difference between 'locked' and 'locked + frozen'. It follows that the enum also prevents the kernel from communicating 'unlocked + frozen' which would be useful for debugging why security operations like 'change passphrase' are disabled. Ditch the security state enum for a set of flags and introduce a new sysfs attribute explicitly for the 'frozen' state. The regression risk is low because the 'frozen' state was already blocked behind the 'locked' state, but will need to revisit if there were cases where applications need 'frozen' to show up in the primary 'security' attribute. The expectation is that communicating 'frozen' is mostly a helper for debug and status monitoring. Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reported-by: Jeff Moyer <jmoyer@redhat.com> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Link: https://lore.kernel.org/r/156686729474.184120.5835135644278860826.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2019-08-28x86/intel: Aggregate big core mobile namingPeter Zijlstra
Currently big core mobile chips have either: - _L - _ULT - _MOBILE Make it uniformly: _L. for i in `git grep -l "\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*_\(MOBILE\|ULT\)"` do sed -i -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*\)_\(MOBILE\|ULT\)/\1_L/g' ${i} done Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Tony Luck <tony.luck@intel.com> Cc: x86@kernel.org Cc: Dave Hansen <dave.hansen@intel.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190827195122.568978530@infradead.org
2019-08-28ACPI: cpufreq: Switch to QoS requests instead of cpufreq notifierViresh Kumar
The cpufreq core now takes the min/max frequency constraints via QoS requests and the CPUFREQ_ADJUST notifier shall get removed later on. Switch over to using the QoS request for maximum frequency constraint for acpi driver. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-28ACPI / CPPC: do not require the _PSD methodAl Stone
According to the ACPI 6.3 specification, the _PSD method is optional when using CPPC. The underlying assumption is that each CPU can change frequency independently from all other CPUs; _PSD is provided to tell the OS that some processors can NOT do that. However, the acpi_get_psd() function returns ENODEV if there is no _PSD method present, or an ACPI error status if an error occurs when evaluating _PSD, if present. This makes _PSD mandatory when using CPPC, in violation of the specification, and only on Linux. This has forced some firmware writers to provide a dummy _PSD, even though it is irrelevant, but only because Linux requires it; other OSPMs follow the spec. We really do not want to have OS specific ACPI tables, though. So, correct acpi_get_psd() so that it does not return an error if there is no _PSD method present, but does return a failure when the method can not be executed properly. This allows _PSD to be optional as it should be. Signed-off-by: Al Stone <ahs3@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-26ACPI / property: Add two new Thunderbolt property GUIDs to the listMika Westerberg
Ice Lake Thunderbolt controller includes two new device property compatible properties that we need to be able to extract in the driver so add them to the growing array of GUIDs. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-23ACPI: SBS: remove unused const variable 'SMBUS_PEC'YueHaibing
drivers/acpi/sbshc.h:18:17: warning: SMBUS_PEC defined but not used [-Wunused-const-variable=] SMBUS_PEC is never used since introduction in commit 91087dfa51a2 ("ACPI: SBS: Split host controller (ACPI0001) from SBS driver (ACPI0002)"), so just remove it. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-23ACPI / LPSS: Save/restore LPSS private registers also on LynxpointJarkko Nikula
My assumption in commit b53548f9d9e4 ("spi: pxa2xx: Remove LPSS private register restoring during resume") that Intel Lynxpoint and compatible based chipsets may not need LPSS private registers saving and restoring over suspend/resume cycle turned out to be false on Intel Broadwell. Curtis Malainey sent a patch bringing above change back and reported the LPSS SPI Chip Select control was lost over suspend/resume cycle on Broadwell machine. Instead of reverting above commit lets add LPSS private register saving/restoring also for all LPSS SPI, I2C and UART controllers on Lynxpoint and compatible chipset to make sure context is not lost in case nothing else preserves it like firmware or if LPSS is always on. Fixes: b53548f9d9e4 ("spi: pxa2xx: Remove LPSS private register restoring during resume") Reported-by: Curtis Malainey <cujomalainey@chromium.org> Tested-by: Curtis Malainey <cujomalainey@chromium.org> Cc: 5.0+ <stable@vger.kernel.org> # 5.0+ Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-22Merge branch 'for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu Pull RCU and LKMM changes from Paul E. McKenney: - A few more RCU flavor consolidation cleanups. - Miscellaneous fixes. - Updates to RCU's list-traversal macros improving lockdep usability. - Torture-test updates. - Forward-progress improvements for no-CBs CPUs: Avoid ignoring incoming callbacks during grace-period waits. - Forward-progress improvements for no-CBs CPUs: Use ->cblist structure to take advantage of others' grace periods. - Also added a small commit that avoids needlessly inflicting scheduler-clock ticks on callback-offloaded CPUs. - Forward-progress improvements for no-CBs CPUs: Reduce contention on ->nocb_lock guarding ->cblist. - Forward-progress improvements for no-CBs CPUs: Add ->nocb_bypass list to further reduce contention on ->nocb_lock guarding ->cblist. - LKMM updates. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-08-21ACPI: PM: s2idle: Always set up EC GPE for system wakeupRafael J. Wysocki
Commit 10a08fd65ec1 ("ACPI: PM: Set up EC GPE for system wakeup from drivers that need it") assumed that the EC GPE would only need to be set up for system wakeup if either the intel-hid or the intel-vbtn driver was in use, but that turns out to be incorrect. In particular, on ASUS Zenbook UX430UNR/i7-8550U, if the EC GPE is not enabled while suspended, the system cannot be woken up by opening the lid or pressing a key, and that machine doesn't use any of the drivers mentioned above. For this reason, always set up the EC GPE for system wakeup from suspend-to-idle by setting and clearing its wake mask in the ACPI suspend-to-idle callbacks. Fixes: 10a08fd65ec1 ("ACPI: PM: Set up EC GPE for system wakeup from drivers that need it") Reported-by: Kristian Klausen <kristian@klausen.dk> Tested-by: Kristian Klausen <kristian@klausen.dk> Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPI: PM: s2idle: Avoid rearming SCI for wakeup unnecessarilyRafael J. Wysocki
It is only necessary to rearm the ACPI SCI for wakeup if pm_system_cancel_wakeup() has been called, so invoke rearm_wake_irq() only in that case. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21PM / wakeup: Show wakeup sources stats in sysfsTri Vo
Add an ID and a device pointer to 'struct wakeup_source'. Use them to to expose wakeup sources statistics in sysfs under /sys/class/wakeup/wakeup<ID>/*. Co-developed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Tri Vo <trong@android.com> Tested-by: Kalesh Singh <kaleshsingh@google.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPI/PCI: Remove surplus parentheses from a return statementKrzysztof Wilczynski
Remove unnecessary parentheses enclosing the value in a return statement in the drivers/acpi/pci_link.c. Signed-off-by: Krzysztof Wilczynski <kw@linux.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Add "Windows 2019" string to _OSI support.Jung-uk Kim
ACPICA commit 32fffb242800b0202986e86d9b0e16f88a23de66 Link: https://github.com/acpica/acpica/commit/32fffb24 Signed-off-by: Jung-uk Kim <jkim@free_BSD.org> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Differentiate Windows 8.1 from Windows 8.Jung-uk Kim
ACPICA commit 66db7b38f61e63f11e48a0ea993d92b12e0a17ca Link: https://github.com/acpica/acpica/commit/66db7b38 Signed-off-by: Jung-uk Kim <jkim@free_BSD.org> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Fully deploy ACPI_PRINTF_LIKE macroBob Moore
ACPICA commit d06def132a8852d02c9c7fee60f17b2011066e8e Macro was not being used across all "printf-like" functions. Also, clean up all calls to such functions now that they are analyzed by the compiler (gcc). Both in 32-bit mode and 64-bit mode. Link: https://github.com/acpica/acpica/commit/d06def13 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Fix issues with arg types within printf format stringsBob Moore
ACPICA commit db2638ccaac84b61e92f34d60c3630ff5217f852 Link: https://github.com/acpica/acpica/commit/db2638cc Link: https://github.com/acpica/acpica/commit/634c3085 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Increase total number of possible Owner IDsBob Moore
ACPICA commit 1f1652dad88b9d767767bc1f7eb4f7d99e6b5324 From 255 to 4095 possible IDs. Link: https://github.com/acpica/acpica/commit/1f1652da Reported-by: Hedi Berriche <hedi.berriche @hpe.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21ACPICA: Debugger: remove redundant assignment on obj_descColin Ian King
ACPICA commit f530f1acb3128136ad97c715fdaebbbeff283ee2 Pointer obj_desc is being initialized with a value that is never read and it is being updated later with a new value. The initialization is redundant and can be removed. Addresses-Coverity: ("Unused value") Link: https://github.com/acpica/acpica/commit/f530f1ac Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Erik Schmauss <erik.schmauss@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-20ACPI / APEI: Release resources if gen_pool_add() failsLiguang Zhang
Destroy ghes_estatus_pool and release memory allocated via vmalloc() on errors in ghes_estatus_pool_init() in order to avoid memory leaks. [ bp: do the labels properly and with descriptive names and massage. ] Signed-off-by: Liguang Zhang <zhangliguang@linux.alibaba.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/1563173924-47479-1-git-send-email-zhangliguang@linux.alibaba.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-16ia64: remove support for machvecsChristoph Hellwig
The only thing remaining of the machvecs is a few checks if we are running on an SGI UV system. Replace those with the existing is_uv_system() check that has been rewritten to simply check the OEM ID directly. That leaves us with a generic kernel that is as fast as the previous DIG/ZX1/UV kernels, but can support all hardware. Support for UV and the HP SBA IOMMU is now optional based on new config options. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lkml.kernel.org/r/20190813072514.23299-27-hch@lst.de Signed-off-by: Tony Luck <tony.luck@intel.com>
2019-08-16ia64: remove support for the SGI SN2 platformChristoph Hellwig
The SGI SN2 (early Altix) is a very non-standard IA64 platform that was at the very high end of even IA64 hardware, and has been discontinued a long time ago. Remove it because there no upstream users left, and it has magic hooks all over the kernel. Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://lkml.kernel.org/r/20190813072514.23299-16-hch@lst.de Signed-off-by: Tony Luck <tony.luck@intel.com>
2019-08-13acpi: Use built-in RCU list checking for acpi_ioremaps listJoel Fernandes (Google)
This commit applies the consolidated list_for_each_entry_rcu() support for lockdep conditions. Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
2019-08-12ACPI/PPTT: Add support for ACPI 6.3 thread flagJeremy Linton
ACPI 6.3 adds a flag to the CPU node to indicate whether the given PE is a thread. Add a function to return that information for a given linux logical CPU. Signed-off-by: Jeremy Linton <jeremy.linton@arm.com> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Robert Richter <rrichter@marvell.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Will Deacon <will@kernel.org>
2019-08-12HMAT: Skip publishing target info for nodes with no online memoryDan Williams
There are multiple scenarios where the HMAT may contain information about proximity domains that are not currently online. Rather than fail to report any HMAT data just elide those offline domains. If and when those domains are later onlined they can be added to the HMEM reporting at that point. This was found while testing EFI_MEMORY_SP support which reserves "specific purpose" memory from the general allocation pool. If that reservation results in an empty numa-node then the node is not marked online leading a spurious: "acpi/hmat: Ignoring HMAT: Invalid table" ...result for HMAT parsing. Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-12HMAT: Register attributes for memory hot addKeith Busch
Some of the memory nodes described in HMAT may not be online at the time the HMAT subsystem parses their nodes' attributes. Should the node be set to online later, as can happen when using PMEM as RAM after boot, the nodes will be missing their initiator links and performance attributes. Regsiter a memory notifier callback and register the memory attributes the first time its node is brought online if it wasn't registered. Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-12HMAT: Register memory-side cache after parsingKeith Busch
Instead of registering the HMAT cache attributes in line with parsing the table, save the attributes in the memory target and register them after parsing completes. This will make it easier to register the attributes later when hot add is supported. Tested-by: Brice Goglin <Brice.Goglin@inria.fr> Signed-off-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-09ACPI / processor: don't print errors for processorIDs == 0xffJiri Slaby
Some platforms define their processors in this manner: Device (SCK0) { Name (_HID, "ACPI0004" /* Module Device */) // _HID: Hardware ID Name (_UID, "CPUSCK0") // _UID: Unique ID Processor (CP00, 0x00, 0x00000410, 0x06){} Processor (CP01, 0x02, 0x00000410, 0x06){} Processor (CP02, 0x04, 0x00000410, 0x06){} Processor (CP03, 0x06, 0x00000410, 0x06){} Processor (CP04, 0x01, 0x00000410, 0x06){} Processor (CP05, 0x03, 0x00000410, 0x06){} Processor (CP06, 0x05, 0x00000410, 0x06){} Processor (CP07, 0x07, 0x00000410, 0x06){} Processor (CP08, 0xFF, 0x00000410, 0x06){} Processor (CP09, 0xFF, 0x00000410, 0x06){} Processor (CP0A, 0xFF, 0x00000410, 0x06){} Processor (CP0B, 0xFF, 0x00000410, 0x06){} ... The processors marked as 0xff are invalid, there are only 8 of them in this case. So do not print an error on ids == 0xff, just print an info message. Actually, we could return ENODEV even on the first CPU with ID 0xff, but ACPI spec does not forbid the 0xff value to be a processor ID. Given 0xff could be a correct one, we would break working systems if we returned ENODEV. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-08ACPI: PM: Print debug messages on device power state changesRafael J. Wysocki
Add an acpi_handle_debug() statement to acpi_device_set_power() to allow ACPI device power state changes to be tracked. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-08ACPI: PM: s2idle: Execute LPS0 _DSM functions with suspended devicesRafael J. Wysocki
According to Section 3.5 of the "Intel Low Power S0 Idle" document [1], Function 5 of the LPS0 _DSM is expected to be invoked when the system configuration matches the criteria for entering the target low-power state of the platform. In particular, this means that all devices should be suspended and in low-power states already when that function is invoked. This is not the case currently, however, because Function 5 of the LPS0 _DSM is invoked by it before the "noirq" phase of device suspend, which means that some devices may not have been put into low-power states yet at that point. That is a consequence of the previous design of the suspend-to-idle flow that allowed the "noirq" phase of device suspend and the "noirq" phase of device resume to be carried out for multiple times while "suspended" (if any spurious wakeup events were detected) and the point of the LPS0 _DSM Function 5 invocation was chosen so as to call it (and LPS0 _DSM Function 6 analogously) once per suspend-resume cycle (regardless of how many times the "noirq" phases of device suspend and resume were carried out while "suspended"). Now that the suspend-to-idle flow has been redesigned to carry out the "noirq" phases of device suspend and resume once in each cycle, the code can be reordered to follow the specification that it is based on more closely. For this purpose, add ->prepare_late and ->restore_early platform callbacks for suspend-to-idle, to be executed, respectively, after the "noirq" phase of suspending devices and before the "noirq" phase of resuming them and make ACPI use them for the invocation of LPS0 _DSM functions as appropriate. While at it, move the LPS0 entry requirements check to be made before invoking Functions 3 and 5 of the LPS0 _DSM (also once per cycle) as follows from the specification [1]. Link: https://uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf # [1] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
2019-08-08ACPI: EC: PM: Make acpi_ec_dispatch_gpe() print debug messageRafael J. Wysocki
Add a pm_pr_dbg() debug statement to acpi_ec_dispatch_gpe() to print a message when the EC GPE has been dispatched (because its status was set). Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
2019-08-08ACPI: EC: PM: Consolidate some code depending on PM_SLEEPRafael J. Wysocki
Move some routines, including acpi_ec_dispatch_gpe(), that are only used if CONFIG_PM_SLEEP is set to the #ifdef block containing the EC suspend and resume callbacks, to make the "full EC PM picture" easier to follow. While at it, move the header of acpi_ec_dispatch_gpe() in the header file to a CONFIG_PM_SLEEP #ifdef block. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
generated by cgit (git 2.34.1) at 2024-05-28 04:54:14 +0000