On 09/15/2014 08:55 PM, Daniel Vetter wrote:
Now we tackle the functions also called from interrupt handlers. - intel_check_page_flip is exclusively called from irq handlers, so a plain spin_lock is all we need. In i915_irq.c we have the convention to give all such functions an _irq_handler postfix, but that would look strange and als be a bit a misleading name. I've opted for a WARN_ON(!in_irq()) instead.
Hi Daniel, Is it possible to use in_interrupt() instead? Sorry to tell that, in our iGVT-g implementation, the host i915 irq handler needs to be called in a non hardirq driven context. i.e. a tasklet or workqueue. Will send you the RFC patches soon. Just saw a warning after rebased upon new drm-intel-nightly. -- Thanks, Jike _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
