[Intel-gfx] [PATCH v2] drm/i915: Wait for pending flips in intel_pipe_set_base()

[Chris Wilson]

On Mon,  5 Nov 2012 15:20:53 +0200, ville.syrjala at linux.intel.com wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> intel_pipe_set_base() never actually waited for any pending page flips
> on the CRTC. It looks like it tried to, by calling intel_finish_fb() on
> the current front buffer. But the pending flips were actually tracked
> in the BO of the previous front buffer, so the call to intel_finish_fb()
> never did anything useful.
> 
> intel_crtc_wait_for_pending_flips() is the current _working_ way to wait
> for pending page flips. So use it in intel_pipe_set_base() too. Some
> refactoring was necessary to avoid locking struct_mutex twice.
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre