[Intel-gfx] [PATCH v2 9/15] drm/i915: expose _SLICE_MASK GETPARM

[Lionel Landwerlin]

On 03/05/17 09:33, Chris Wilson wrote:
> On Wed, May 03, 2017 at 09:23:56AM -0700, Lionel Landwerlin wrote:
>> From: Robert Bragg<robert at sixbynine.org>
>>
>> Enables userspace to determine the number of slices enabled and also
>> know what specific slices are enabled. This information is required, for
>> example, to be able to analyse some OA counter reports where the counter
>> configuration depends on the HW slice configuration.
> This is counter to the suggestion that contexts program these
> themselves. There will be no global value.
> -Chris
>
I saw your patches and was wondering whether the actual value userspace 
wants is the all on mask without the fused parts.

If that's not the case, we might have to turn everything on for as long 
as i915 perf is being used.
In any case, I'll have to update the commit message.

I'll get back to you.

Thanks,

-
Lionel

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