Chris Wilson writes:
> The idea of taking the reset lock around writing the fence register was
> to serialise the mmio write we also perform during the reset where those
> registers get clobbered. However, the lock is overkill as write tearing
> between reset and fence_update() is harmless; the
The idea of taking the reset lock around writing the fence register was
to serialise the mmio write we also perform during the reset where those
registers get clobbered. However, the lock is overkill as write tearing
between reset and fence_update() is harmless; the final value of the
fence
