)]}'
{
  "commit": "dfeeedc1bf5772226bddf51ed3f853e5a6707bf1",
  "tree": "fea54c4c9944fdb2ac688e6c185bd916c834f650",
  "parents": [
    "521223d8b3ec078f670c7c35a1a04b1b2af07966"
  ],
  "author": {
    "name": "Rafael J. Wysocki",
    "email": "rafael.j.wysocki@intel.com",
    "time": "Fri Dec 17 20:06:08 2021 +0100"
  },
  "committer": {
    "name": "Rafael J. Wysocki",
    "email": "rafael.j.wysocki@intel.com",
    "time": "Wed Dec 22 18:36:07 2021 +0100"
  },
  "message": "cpufreq: intel_pstate: Update cpuinfo.max_freq on HWP_CAP changes\n\nWith HWP enabled, when the turbo range of performance levels is\ndisabled by the platform firmware, the CPU capacity is given by\nthe \"guaranteed performance\" field in MSR_HWP_CAPABILITIES which\nis generally dynamic.  When it changes, the kernel receives an HWP\nnotification interrupt handled by notify_hwp_interrupt().\n\nWhen the \"guaranteed performance\" value changes in the above\nconfiguration, the CPU performance scaling needs to be adjusted so\nas to use the new CPU capacity in computations, which means that\nthe cpuinfo.max_freq value needs to be updated for that CPU.\n\nAccordingly, modify intel_pstate_notify_work() to read\nMSR_HWP_CAPABILITIES and update cpuinfo.max_freq to reflect the\nnew configuration (this update can be carried out even if the\nconfiguration doesn\u0027t actually change, because it simply doesn\u0027t\nmatter then and it takes less time to update it than to do extra\nchecks to decide whether or not a change has really occurred).\n\nReported-by: Srinivas Pandruvada \u003csrinivas.pandruvada@linux.intel.com\u003e\nTested-by: Srinivas Pandruvada \u003csrinivas.pandruvada@linux.intel.com\u003e\nSigned-off-by: Rafael J. Wysocki \u003crafael.j.wysocki@intel.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "38cabc38261a2a893ab100f5cbe14f9b70c0d1b6",
      "old_mode": 33188,
      "old_path": "drivers/cpufreq/intel_pstate.c",
      "new_id": "bc7f7e6759bd6f05ae3853c845e9c633112967b0",
      "new_mode": 33188,
      "new_path": "drivers/cpufreq/intel_pstate.c"
    }
  ]
}