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ef5b0b444e
in workload_thread, it should grab runtime pm wakelock and later
uncore forcewake get will check rpm wakelock held successfully.
otherwise, sometimes, rpm wakelock not hold and print call trace below:
Call Trace:
intel_uncore_forcewake_get+0x15/0x20 [i915]
workload_thread+0x5f9/0x16f0 [i915]
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to+0x85/0x3f0
? __switch_to_asm+0x40/0x70
? do_wait_intr_irq+0x90/0x90
kthread+0x121/0x140
? intel_vgpu_clean_workloads+0x100/0x100 [i915]
? kthread_park+0x90/0x90
ret_from_fork+0x35/0x40
--[ end trace 86525f742a02e12c ]--
v2: adapted to use rpm structure.
Fixes:
|
History
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.