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What is all possible SGI miss scenario?
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GICv3/v4
CoreLink GIC-600 Generic Interrupt Controller
Generic Interrupt Controller
CoreLink GIC-600AE
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What is all possible SGI miss scenario?
Namu
over 2 years ago
Hi,
As we know SGI is edge trigger. Anyone know possible SGI miss/ignore scenario on GIC600?
Top replies
Martin Weidmann
over 2 years ago
+1
verified
Not specific to GIC-600, but: Target does not exist (you specified an affinity that the GIC doesn't know about) Mismatch between sending Group and receiver Group E.g. the sender sends the SGI...
Martin Weidmann
over 2 years ago
in reply to
Martin Weidmann
+1
verified
To add... There are also lots of reasons an SGI might be successfully registered but not cause an interrupt exception on the target CPU. For example, the SGI might be individually disabled, it might...
Martin Weidmann
over 2 years ago
in reply to
Namu
+1
verified
I'm not very knowledge-able about the specifics of hot plug/wake-up... so I'll stick to the GIC side. My starting point would be to check if the GIC has registered the SGI as being pending for the receiving...
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