0af7e4dff5
v2: Change IS_IRONLAKE to IS_GEN5 to adapt to 2.6.37 This patch adds new functions for use by the drm core: .get_vblank_timestamp() provides a precise timestamp for the end of the most recent (or current) vblank interval of a given crtc, as needed for the DRI2 implementation of the OML_sync_control extension. It is a thin wrapper around the drm function drm_calc_vbltimestamp_from_scanoutpos() which does almost all the work. .get_scanout_position() provides the current horizontal and vertical video scanout position and "in vblank" status of a given crtc, as needed by the drm for use by drm_calc_vbltimestamp_from_scanoutpos(). The patch modifies the pageflip completion routine to use these precise vblank timestamps as the timestamps for pageflip completion events. This code has been only tested on a HP-Mini Netbook with Atom processor and Intel 945GME gpu. The codepath for (IS_G4X(dev) || IS_GEN5(dev) || IS_GEN6(dev)) gpu's has not been tested so far due to lack of hardware. Signed-off-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> |
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