[Intel-gfx] [PATCH] drm/i915: don't implement WaDisableEarlyCull for Haswell

[Lespiau, Damien]

On Wed, Oct 10, 2012 at 10:09 PM, Paulo Zanoni <przanoni at gmail.com> wrote:
> From: Paulo Zanoni <paulo.r.zanoni at intel.com>
>
> Introduced in commit 87f8020ec9e3069597746040a4e8655189bc0c1a:
>   drm/i915: implement WaDisableEarlyCull for VLV and IVB
>
> Notice that the original patch sent to the mailing list did not
> include the Haswell chunk, it was added later.
>
> The bit set by the commit does not exist on Haswell machines (at least
> that's what the documentation says). Also, the commit gives me a GPU
> hang every time we're loading the driver. So let's revert the Haswell
> chunk, making the patch do only what its title actually says.
>
> Signed-off-by: Paulo Zanoni <paulo.r.zanoni at intel.com>

Indeed the bit definition has disappeared in the documentation, but
the wa is listed in the wa database. A hang is very handy to decide
who is right :)

Reviewed-by: Damien Lespiau <damien.lespiau at intel.com>

-- 
Damien