Re: [PATCH] drm/i915/selftests: scrub 64K

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Quoting Matthew Auld (2018-05-10 20:00:06)
> We write out all PTEs when operating in 64K mode, which is acceptable
> given the assertion that the hw only cares about every 16th PTE and so
> will ignore everything else.  However this may hide potential issues,
> for example the hw could be sneakily operating in 4K mode and we would
> be none the wiser, so make sure this doesn't escape us in the selftests.

For selftesting, don't you want to do the opposite and set the ignored
addresses to something that will explode, and not something safe?
-Chris
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