[Intel-gfx] [PATCH] drm/i915: Do hw quiescing first during unload

Chris Wilson chris at chris-wilson.co.uk
Thu Oct 17 21:37:44 CEST 2013

On Thu, Oct 17, 2013 at 12:07:26PM -0700, Ben Widawsky wrote:
> On Thu, Oct 17, 2013 at 01:02:53PM +0100, Chris Wilson wrote:
> > If we force the hw to idle as our first step during unload, we can abort
> > the unload upon failure. Later we can probe whether the hardware remain
> > active even after we try to shut it down.
> > 
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Isn't it pretty mean to fail to unload? Wouldn't pci_clear_master yield
> what we want?

It may be mean, but it seems to me to be the right thing to do if we
cannot turn off the hardware to unload the driver...

Chris Wilson, Intel Open Source Technology Centre

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