SYNOPSIS

void drm_atomic_helper_wait_for_vblanks(struct drm_device * dev, struct drm_atomic_state * old_state);

ARGUMENTS

dev

DRM device

old_state

atomic state object with old state structures

DESCRIPTION

Helper to, after atomic commit, wait for vblanks on all effected crtcs (ie. before cleaning up old framebuffers using drm_atomic_helper_cleanup_planes). It will only wait on crtcs where the framebuffers have actually changed to optimize for the legacy cursor and plane update use-case.

AUTHORS

Jesse Barnes <[email protected]>
Intel Corporation,         
        

Initial version

Laurent Pinchart <[email protected]>
Ideas on board SPRL,         
        

Driver internals

Daniel Vetter <[email protected]>
Intel Corporation,         
        

Contributions all over the place

Lukas Wunner <[email protected]>

vga_switcheroo documentation

COPYRIGHT