Re: e7500 and IRQ assignment

[Zwane Mwaikambo]

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

--
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