[Intel-gfx] [PATCH 10/10] drm/i915: Remove the rounding down of the gen4+ fence region

Chris Wilson chris at chris-wilson.co.uk
Mon Jan 9 12:09:20 UTC 2017

On Mon, Jan 09, 2017 at 01:46:52PM +0200, Joonas Lahtinen wrote:
> On pe, 2017-01-06 at 15:25 +0000, Chris Wilson wrote:
> > Restricting the fence to the end of the previous tile-row breaks access
> > to the final portion of the object. On gen2/3 we employed lazy fencing
> > to pad out the fence with scratch page to provide access to the tail,
> > and now we also pad out the object on gen4+ we can apply the same fix.
> > 
> > Fixes: af1a7301c7cf ("drm/i915: Only fence tiled region of object.")
> Need to prepare for backporting if this gets sent to stable, code has
> changed quite a bit.

Exactly why I didn't propose a stable tag.
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> T-b would be great.

Testcase: igt/drv_selftest/objects

Chris Wilson, Intel Open Source Technology Centre

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