On 1-Mar-05, at 4:52 AM, Finn Thain wrote:
Once again I've been working on the interrupt handling in the 2.6 kernel
(trying to fix the DP8390 transmit timeouts and MACE FIFO overruns).
I noticed that when alt_via_mapping is in use, the VIA 1 interrupt moves
to autovector 6. However, the VIA 1 handler still gets registered for IRQ
1, but it receives no interrupts on my machines. It is labelled
"software". Does anyone know what it is it for?
As I recall, you can set a bit in the VIA and it'll generate an interrupt on that line. I suppose it was intended to shuffle the lower priority interrupts back down to IRQ 1 without having to write a whole bottom-half API.
Cheers - Tony 'Nicoya' Mantler :)
-- Tony 'Nicoya' Mantler -- Master of Code-fu -- [EMAIL PROTECTED] -- http://nicoya.feline.pp.se/ -- http://www.ubb.ca/ --
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