drm/i915: Disable semaphores by default on SNB
Semaphores still cause problems on some machines:
> From Udo Steinberg:
>
> With Linux-3.2-rc6 I'm frequently seeing GPU hangs when large amounts of
> text scroll in an xterm, such as when extracting a tar archive. Such as this
> one (note the timestamps):
>
> I can reproduce it fairly easily with something
> as simple as:
>
> while true; do dmesg; done
This patch turns them off on SNB while leaving them on for IVB.
Reported-by: Udo Steinberg <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Eugeni Dodonov <[email protected]>
Signed-off-by: Keith Packard <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
1 file changed
