Date: Mon, 3 Nov 2003 13:34:45 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/i386/isa atpic.c atpic_vector.s icu.h Message-ID: <200311032134.hA3LYjpm092148@repoman.freebsd.org>
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jhb 2003/11/03 13:34:45 PST
FreeBSD src repository
Modified files:
sys/i386/isa atpic_vector.s icu.h
Added files:
sys/i386/isa atpic.c
Log:
Add the new atpic(4) driver for the 8259A master and slave PICs. By
default we provide 16 interrupt sources for IRQs 0 through 15. However,
if the I/O APIC driver has already registered sources for any of those IRQs
then we will silently fail to register our own source for that IRQ.
Note that i386/isa/icu.h is now specific to the 8259A and no longer
contains any info relevant to APICs. Also note that fast interrupts no
longer use a separate entry point. Instead, both fast and threaded
interrupts share the same entry point which merely looks up the appropriate
source and passes control to intr_execute_handlers().
Revision Changes Path
1.1 +415 -0 src/sys/i386/isa/atpic.c (new)
1.38 +77 -178 src/sys/i386/isa/atpic_vector.s
1.28 +6 -47 src/sys/i386/isa/icu.h
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