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dup pending interrupts do not need to notify_all

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Neil Webber 2024-05-29 19:11:02 -05:00
parent 86175eae07
commit 7031d8b6cd
1 changed files with 5 additions and 4 deletions
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5
interrupts.py
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@ -106,14 +106,15 @@ class InterruptManager:
if not self.requests: if not self.requests:
self.requests = [irq] self.requests = [irq]
self.pri_pending = irq.pri self.pri_pending = irq.pri
else: elif irq in self.requests:
# multiple identical requests are not pended # multiple identical requests are not pended
# (it works this way in the hardware too of course -- # (it works this way in the hardware too of course --
# if a device has asserted the interrupt request line # if a device has asserted the interrupt request line
# but that request hasn't been acknowledged/cleared by # but that request hasn't been acknowledged/cleared by
# by the bus signal protocol yet, you can't assert the # by the bus signal protocol yet, you can't assert the
# same interrupt line again ... it's already asserted) # same interrupt line again ... it's already asserted)
if irq not in self.requests: return # NOTE: NO NEED TO notify_all()
else:
self.requests = sorted(self.requests + [irq], key=_qpri) self.requests = sorted(self.requests + [irq], key=_qpri)
self.pri_pending = self.requests[-1].pri self.pri_pending = self.requests[-1].pri
self.condition.notify_all() self.condition.notify_all()