drm/amd/display: Add flip interval workaround

[WHY]
Some games experience low FPS issues when FreeSync is on and VSync is
toggled to half refresh rate.

[HOW]
First create a function to determine workaround conditions, which is
when we detect 2 or more VSync interrupts between flips and a very short
VSync to flip interval. We do the workaround during VSync interrupts and
set the v_total_max and min to nominal. We also cleanup after we exit
the game.

Tested-by: Daniel Wheeler <[email protected]>
Reviewed-by: Anthony Koo <[email protected]>
Reviewed-by: Aric Cyr <[email protected]>
Acked-by: Tom Chung <[email protected]>
Signed-off-by: Angus Wang <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions