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659f14158f
Due to DDB overlaps the pipe enabling sequence is not always crescent. As the previous patch selects the smallest pipe/transcoder in the MST stream to be master and it needs to be enabled first, this changes were needed to guarantee that. So first lets enable all pipes that do not need a fullmodeset as those don't have any external dependency and those are the ones that can overlap with each other. Then on the second loop it will enable all the pipes that needs a modeset and don't depends on other pipes like MST master pipe/transcoder. Then finally all the pipes that needs a modeset and have dependency on other pipes, that at this point are alread enabled. v3: rebased v4: - added check for modeset_pipes too to decide if is necessary for a wait a vblank - added DDB allocation overlap check for pipes that needs a modeset Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: José Roberto de Souza <jose.souza@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191223010654.67037-3-jose.souza@intel.com |
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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.