[Intel-gfx] [PATCH v3 3/3] drm/i915/gt: document TLB cache invalidation functions

[Tvrtko Ursulin]

On 05/08/2022 10:08, Andi Shyti wrote:
> Hi Randy,
> 
>>> +/**
>>> + * intel_gt_invalidate_tlb_full - do full TLB cache invalidation
>>> + * @gt: GT structure
>>
>> In multiple places (here and below) it would be nice to know what a
>> GT structure is. I looked thru multiple C and header files yesterday
>> and didn't find any comments about it.
>>
>> Just saying that @gt is a GT structure isn't very helpful, other
>> than making kernel-doc shut up.
> 
> the 'gt' belongs to the drivers/gpu/drm/i915/gt/ subsystem and
> it's widely used a throughout i915.
> 
> I think it's inappropriate to describe it just here. On the other
> hand I agree that a better documentation is required for the GT
> itself where other parts can point to.

Yeah agreed there is no point of copy pasting some explanation all over 
the place. Could we just do s/GT structure/struct intel_gt/, or "pointer 
to struct intel_gt to operate on", would that be good enough?

Regards,

Tvrtko