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0088d39b6a
Let's adjust the vblank evasion to account for the case where a push has already been sent. In that case the vblank exit will start at vmin vblank start (as opposed to vmax vblank start when no push has been sent). This should minimize the effects of the tiny race between sampling the frame counter vs. intel_vrr_send_push() during the previous frame. This will also be required if we want to do mailbox style updates with vrr since then we'd definitely do multiple commits per frame. Currently mailbox updates are only used by the legacy cursor, but we don't do vrr push for those. Cc: Manasi Navare <manasi.d.navare@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211117183103.27418-2-ville.syrjala@linux.intel.com Reviewed-by: Manasi Navare <manasi.d.navare@intel.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 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.