]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/i915: Fix vblank evasion with vrr
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Fri, 22 Jan 2021 23:26:47 +0000 (15:26 -0800)
committerManasi Navare <manasi.d.navare@intel.com>
Mon, 25 Jan 2021 23:23:44 +0000 (15:23 -0800)
commitd6a059e2d39fe1ed0acf6232daa02f19ef97091a
treebc48f8ccd86a43dc651358f1f650bcfb154e300f
parent7a2ec4a0a588bf6b0975f6c296604c2bc80b3aee
drm/i915: Fix vblank evasion with vrr

With vrr enabled the hardware no longer latches the registers
automagically at vblank start. The point at which it will do the
latching even when no push has been sent is the vmax decision
boundary. That is the thing we need to evade to avoid our
register latching to get split between two frames.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210122232647.22688-18-manasi.d.navare@intel.com
drivers/gpu/drm/i915/display/intel_sprite.c