SYNOPSIS

void drm_arm_vblank_event(struct drm_device * dev, unsigned int pipe, struct drm_pending_vblank_event * e);

ARGUMENTS

dev

DRM device

pipe

CRTC index

e

the event to prepare to send

DESCRIPTION

A lot of drivers need to generate vblank events for the very next vblank interrupt. For example when the page flip interrupt happens when the page flip gets armed, but not when it actually executes within the next vblank period. This helper function implements exactly the required vblank arming behaviour.

Caller must hold event lock. Caller must also hold a vblank reference for the event e, which will be dropped when the next vblank arrives.

This is the legacy version of drm_crtc_arm_vblank_event.

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

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