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6e796cb4a9
Don't wake up the GPU for reading pm values. Instead, take a runtime powermanagement ref when trying to read it if and only if the GPU is already awake. This avoids spurious wake ups (eg: from applets). We use pm_runtime_get_if_in_active because we care about "is the GPU awake?" not about "is the GPU awake and something else prevents suspend?". Tested-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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 reStructuredText 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.