[igt-dev] [PATCH igt 12/16] igt/gem_ctx_isolation: Check isolation of registers between contexts

[Joonas Lahtinen]

Quoting Chris Wilson (2018-02-20 10:45:16)
> A new context assumes that all of its registers are in the default state
> when it is created. What may happen is that a register written by one
> context may leak into the second, causing mass confusion.
> 
> v2: Extend back to Sandybridge (etc)
> v3: Check context preserves registers across suspend/hibernate and resets.
> v4: Complete the remapping onto the new class:instance
> v5: Not like that, like this, try again to use class:instance
> v6: Prepare for retrospective gen4 contexts!
> v7: Repaint register set name to nonpriv, as this is what bspec calls the
> registers that are writable by userspace.
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Regards, Joonas