[Intel-gfx] [PATCH v5 17/18] drm/i915: Watchdog timeout: DRM kernel interface to set the timeout

[Chris Wilson]

On Tue, Mar 28, 2017 at 09:31:16AM +0100, Chris Wilson wrote:
> On Mon, Mar 27, 2017 at 06:03:37PM -0700, Michel Thierry wrote:
> > What if it fails/overflows after some engines' thresholds have been
> > set, should it set them back to 0's or leave them enable?
> 
> Yes. Validate userspace first, then apply, so the set of changes is
> atomic and the ret is either success or EINVAL.

Oh, it is much worse than that. We can't use engine->id as the UABI
index. We need to fix the exec_id indexing first and rename it to uabi_id.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre