> On Fri, Jan 15, 2016 at 03:12:50PM +0000, Tvrtko Ursulin wrote:
> > From: Tvrtko Ursulin <[email protected]>
> > + if (user_ring_id == I915_EXEC_BSD && HAS_BSD2(dev_priv)) {
> > + unsigned int bsd_idx = args->flags & I915_EXEC_BSD_MASK;
> > +
> > + if (bsd_idx == I915_EXEC_BSD_DEFAULT) {
> > + bsd_idx = gen8_dispatch_bsd_ring(dev_priv, file);
> > + } else if (bsd_idx >= I915_EXEC_BSD_RING1 &&
> > + bsd_idx <= I915_EXEC_BSD_RING2) {
> > + bsd_idx--;
There is one regression here, I915_EXEC_BSD_RING1/2 is left-shifted 13 bits,
so we should add something like
bsd_idx >>= 13;
Otherwise the kernel panics.
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