• Linus Torvalds's avatar
    Merge tag 'pm-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · d09fcecb
    Linus Torvalds authored
    Pull more power management updates from Rafael Wysocki:
     "These revert a recent PM core change that introduced a regression, fix
      the build when the recently added Kryo cpufreq driver is selected, add
      support for devices attached to multiple power domains to the generic
      power domains (genpd) framework, add support for iowait boosting on
      systens with hardware-managed P-states (HWP) enabled to the
      intel_pstate driver, modify the behavior of the wakeup_count device
      attribute in sysfs, fix a few issues and clean up some ugliness,
      mostly in cpufreq (core and drivers) and in the cpupower utility.
    
      Specifics:
    
       - Revert a recent PM core change that attempted to fix an issue
         related to device links, but introduced a regression (Rafael
         Wysocki)
    
       - Fix build when the recently added cpufreq driver for Kryo
         processors is selected by making it possible to build that driver
         as a module (Arnd Bergmann)
    
       - Fix the long idle detection mechanism in the out-of-band (ondemand
         and conservative) cpufreq governors (Chen Yu)
    
       - Add support for devices in multiple power domains to the generic
         power domains (genpd) framework (Ulf Hansson)
    
       - Add support for iowait boosting on systems with hardware-managed
         P-states (HWP) enabled to the intel_pstate driver and make it use
         that feature on systems with Skylake Xeon processors as it is
         reported to improve performance significantly on those systems
         (Srinivas Pandruvada)
    
       - Fix and update the acpi_cpufreq, ti-cpufreq and imx6q cpufreq
         drivers (Colin Ian King, Suman Anna, Sébastien Szymanski)
    
       - Change the behavior of the wakeup_count device attribute in sysfs
         to expose the number of events when the device might have aborted
         system suspend in progress (Ravi Chandra Sadineni)
    
       - Fix two minor issues in the cpupower utility (Abhishek Goel, Colin
         Ian King)"
    
    * tag 'pm-4.18-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
      Revert "PM / runtime: Fixup reference counting of device link suppliers at probe"
      cpufreq: imx6q: check speed grades for i.MX6ULL
      cpufreq: governors: Fix long idle detection logic in load calculation
      cpufreq: intel_pstate: enable boost for Skylake Xeon
      PM / wakeup: Export wakeup_count instead of event_count via sysfs
      PM / Domains: Add dev_pm_domain_attach_by_id() to manage multi PM domains
      PM / Domains: Add support for multi PM domains per device to genpd
      PM / Domains: Split genpd_dev_pm_attach()
      PM / Domains: Don't attach devices in genpd with multi PM domains
      PM / Domains: dt: Allow power-domain property to be a list of specifiers
      cpufreq: intel_pstate: New sysfs entry to control HWP boost
      cpufreq: intel_pstate: HWP boost performance on IO wakeup
      cpufreq: intel_pstate: Add HWP boost utility and sched util hooks
      cpufreq: ti-cpufreq: Use devres managed API in probe()
      cpufreq: ti-cpufreq: Fix an incorrect error return value
      cpufreq: ACPI: make function acpi_cpufreq_fast_switch() static
      cpufreq: kryo: allow building as a loadable module
      cpupower : Fix header name to read idle state name
      cpupower: fix spelling mistake: "logilename" -> "logfilename"
    d09fcecb
intel_pstate.c 63.5 KB