[Intel-gfx] [PATCH v3 00/22] Refactor HW workaround code

[Oscar Mateo]

On 10/17/2017 06:06 AM, Chris Wilson wrote:
> Quoting Oscar Mateo (2017-10-13 21:53:54)
>> Main difference with v2 is the split into GT and Display workarounds (suggested
>> by Ville). Because that makes review even more important (which WA goes where?)
>> I have split the movement of WAs from init_clock_gating into separate patches
>> (one per GEN).
>>
>> Currently, deciding how/where to apply new workarounds is challenging. Often,
>> workarounds end up applied incorrectly and get lost under certain circumstances
>> (e.g. a context switch or a GPU reset). This is a proposal to attempt to
>> eliminate some of this pain, by clarifying the current classification of
>> workarounds (context saved/restored, global registers, whitelisting, BB),
>> putting them together on the same file, and improving the existing validation
>> infrastructure (debugfs/i-g-t).
> Some more to add to the list! i915_gem_init_hw() has another random
> collection of GT registers.
> -Chris

Hmmmm... those are very old (IVB, HSW...) and I had started converting 
only BDW onwards (if only because, the older the platform gets, the more 
difficult it is to classify WAs).