Date: Tue, 6 Dec 2005 23:20:59 -0800 From: "Darren Pilgrim" <darren.pilgrim@bitfreak.org> To: "'John Baldwin'" <jhb@FreeBSD.org> Cc: current@FreeBSD.org Subject: RE: can someone explain...[ PCI interrupts] Message-ID: <018e01c5fafe$c9154a20$642a15ac@smiley>
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From: John Baldwin >=20 > The reason [for masking interrupts] is that PCI interrupts are level > triggered, so they won't "shut up" until the ISR has run and pacified > the PCI device. But PCI interrupts can be programmed either level- or edge-triggered, so wouldn't programming to edge-triggered interrupts solve the "they won't = shut up" issue?
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