Messages in this thread | | | Date | Wed, 5 Jun 2019 12:09:42 +0200 | From | "" <> | Subject | Re: [RFC PATCH v2 1/3] vfio: Use capability chains to handle device specific irq |
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Hi,
> > Really need to split for different planes? I'd like a > > VFIO_IRQ_SUBTYPE_GFX_DISPLAY_EVENT > > so user space can probe change for all.
> User space can choose to user different handlers according to the > specific event. For example, user space might not want to handle every > cursor event due to performance consideration. Besides, it can reduce > the probe times, as we don't need to probe twice to make sure if both > cursor plane and primary plane have been updated.
I'd suggest to use the value passed via eventfd for that, i.e. instead of sending "1" unconditionally send a mask of changed planes.
cheers, Gerd
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