[Why] The current implementation for idle optimization support only has a single work item that gets reshuffled into the system workqueue whenever we receive an enable or disable event. We can have mismatched events if the work hasn't been processed or if we're getting control events from multiple displays at once. This fixes this issue and also makes the implementation usable for PSR control - which will be addressed in another patch. [How] We need to be able to flush remaining work out on demand for driver stop and psr disable so create a driver specific workqueue instead of using the system one. The workqueue will be single threaded to guarantee the ordering of enable/disable events. Refactor the queue to allocate the control work and deallocate it after processing it. Pass the acrtc directly to make it easier to handle psr enable/disable in a later patch. Rename things to indicate that it's not just MALL specific. Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Merge tag 'amd-drm-next-5.15-2021-07-29' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
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.
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