[igt-dev] [PATCH i-g-t] lib/intel_batchbuffer: Fix relocs across the 4GB address boundary

[Zbigniew Kempczyński]

On Mon, Nov 09, 2020 at 12:08:43PM +0000, Chris Wilson wrote:
> Quoting Imre Deak (2020-11-09 12:06:32)
> > If the delta of a relocation target wrt. the object base address crosses
> > the 4GB address boundary the upper 32bit of the target address will be
> > incorrect, fix this.
> > 
> > Cc: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
> > Cc: Chris Wilson <chris at chris-wilson.co.uk>
> > Signed-off-by: Imre Deak <imre.deak at intel.com>
> 
> Zbigniew, fancy writing a test case for this?
> -Chris

Sure, enqueued. 

Apart of fix is correct - I thought we're mostly using delta
to set some bits in commands. What's the real usage?

--
Zbigniew

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