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Put in a real isa_irq_pending() stub in order to remove two lines of dmesg

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noise from sio per unit.  sio likes to probe if interrupts are configured
correctly by looking at the pending bits of the atpic in order to put a
non-fatal warning on the console.  I think I'd rather read the pending
bits from the apics, but I'm not sure its worth the hassle.
This commit is contained in:
Peter Wemm 2008-04-19 07:25:57 +00:00
parent 5b30d6ca77
commit 3bf67daaf3
1 changed files with 14 additions and 2 deletions
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16
sys/amd64/amd64/machdep.c
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@ -847,11 +847,23 @@ ssdtosyssd(ssd, sd)
#if !defined(DEV_ATPIC) && defined(DEV_ISA)
#include <isa/isavar.h>
u_int
#include <isa/isareg.h>
/*
* Return a bitmap of the current interrupt requests. This is 8259-specific
* and is only suitable for use at probe time.
* This is only here to pacify sio. It is NOT FATAL if this doesn't work.
* It shouldn't be here. There should probably be an APIC centric
* implementation in the apic driver code, if at all.
*/
intrmask_t
isa_irq_pending(void)
{
u_char irr1;
u_char irr2;
return (0);
irr1 = inb(IO_ICU1);
irr2 = inb(IO_ICU2);
return ((irr2 << 8) | irr1);
}
#endif