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authorChen Yu <yu.c.chen@intel.com>2018-01-29 10:27:57 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-02-08 10:21:38 +0100
commit70f6bf2a3b7e40c3f802b0ea837762a8bc6c1430 (patch)
tree6ca51a0143f0a89d96e89dc9bc09a2a8e57bd732 /include
parent0725390da9fb5add90a6ee5d5bbe58b5f47b25ac (diff)
cpufreq: intel_pstate: Enable HWP during system resume on CPU0
When maxcpus=1 is in the kernel command line, the BP is responsible for re-enabling the HWP - because currently only the APs invoke intel_pstate_hwp_enable() during their online process - which might put the system into unstable state after resume. Fix this by enabling the HWP explicitly on BP during resume. Reported-by: Doug Smythies <dsmythies@telus.net> Suggested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Yu Chen <yu.c.chen@intel.com> [ rjw: Subject/changelog, minor modifications ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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