[igt-dev] [RFC v1] Data Port Coherency tests.

[Dunajski, Bartosz]

Its required to support fine grain SVM in OpenCL.
This functionality is used by new OCL driver (aka. NEO):
https://github.com/intel/compute-runtime 

Starting from commit: 933312e0986d3a7c1ef557e511eb4ced301ea292

-----Original Message-----
From: Chris Wilson [mailto:chris at chris-wilson.co.uk] 
Sent: Tuesday, March 20, 2018 4:31 PM
To: Lis, Tomasz <tomasz.lis at intel.com>; igt-dev at lists.freedesktop.org
Cc: Dunajski, Bartosz <bartosz.dunajski at intel.com>; joonas.lahtinen at linux.intel.com; Winiarski, Michal <michal.winiarski at intel.com>
Subject: Re: [RFC v1] Data Port Coherency tests.

Quoting Tomasz Lis (2018-03-20 15:12:32)
> From: "Lis, Tomasz" <tomasz.lis at intel.com>
> 
> This adds a new test binary, containing tests for the Data Port 
> Coherency option. The tests check whether the option is correctly set 
> to proper GPU register.

But where's the test that it *does* anything? I.e. what's the expected change in user visible behaviour? (What does the flag really mean, now and for years to come?) -Chris
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