[Mesa-dev] [PATCH 8/8] i965/drm: Make brw_emit_reloc take a uint64_t target_offset.

[Chris Wilson]

On Tue, Apr 11, 2017 at 09:02:51AM -0700, Kenneth Graunke wrote:
> If we have buffers larger than 4GB, then target_offset will need to
> become a 64-bit value.  Delta is only a __u32 though, so we downcast.
> 
> Suggested by Chris Wilson.

I retract that suggestion. There's no value in going above and beyond
the current kernel limitations (how do we test?) and only makes things a
little more complicated wrt to type handling (since reloc->delta is
actually a sint32_t and not a uint32_t).

Hmm, it does have some value in catching overflows, maybe?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre