drm/i915: Kill i915_gem_execbuffer_wait_for_flips()

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As per Chris Wilson's suggestion make
i915_gem_execbuffer_wait_for_flips() go away.

This was used to stall the GPU ring while there are pending
page flips involving the relevant BO. Ie. while the BO is still
being scanned out by the display controller.

The recommended alternative is to use the page flip events to
wait for the page flips to fully complete before reusing the BO
of the old front buffer. Or use more buffers.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Kristian Høgsberg <krh@bitplanet.net>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: don't remove obj->pending_flips, still required due to
reorder patches.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

...

This commit is contained in:

Ville Syrjälä 2012-11-27 20:34:58 +02:00 • committed by Daniel Vetter

parent f930ddd058

commit ca9c46c5c7

2 changed files with 0 additions and 49 deletions

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42

drivers/gpu/drm/i915/i915_gem_execbuffer.c

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7

drivers/gpu/drm/i915/intel_display.c

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