Re: e7500 and IRQ assignment

From: Zwane Mwaikambo (zwane@holomorphy.com)
Date: Mon Nov 25 2002 - 14:33:57 EST


On Mon, 25 Nov 2002, Emiliano Gabrielli wrote:

> On 16:41, luned́ 25 novembre 2002, Zwane Mwaikambo wrote:
> > On Mon, 25 Nov 2002, Emiliano Gabrielli wrote:
> > > number of MP IRQ sources: 20.
> > > number of IO-APIC #2 registers: 24.
> > > number of IO-APIC #3 registers: 24.
> > > number of IO-APIC #4 registers: 24.
> > > number of IO-APIC #5 registers: 24.
> > > number of IO-APIC #6 registers: 24.
> > > testing the IO APIC.......................
> >
> > Out of curiosity, does this box really have 5 IOAPICs?
> >
> > Zwane
>
> no of course, but something seems to be buggy...
>
> .. nothing changed ;((

Can't be certain without more debug output from MP boot process,
perhaps MP table parsing? Do you have ACPI enabled?

Please humour me here (you only have 20 IRQ sources and everything looks
properly wired on IOAPIC#2 ;)

Index: linux-2.4.20-rc1-ac4/include/asm-i386/apicdef.h
===================================================================
RCS file: /build/cvsroot/linux-2.4.20-rc1-ac4/include/asm-i386/apicdef.h,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 apicdef.h
--- linux-2.4.20-rc1-ac4/include/asm-i386/apicdef.h 18 Nov 2002 01:38:42 -0000 1.1.1.1
+++ linux-2.4.20-rc1-ac4/include/asm-i386/apicdef.h 25 Nov 2002 19:30:45 -0000
@@ -115,7 +115,7 @@
 #ifdef CONFIG_MULTIQUAD
 #define MAX_IO_APICS 32
 #else
-#define MAX_IO_APICS 8
+#define MAX_IO_APICS 1
 #endif

 #define APIC_BROADCAST_ID_XAPIC 0xFF

--
function.linuxpower.ca
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sat Nov 30 2002 - 22:00:11 EST