RE: mptable.c

[YhLu]

Enable apic ext id committed.

Changes
Auto.c
         nodeid = lapicid() & 0xf;
        #if ENABLE_APIC_EXT_ID == 1
                enable_apic_ext_id(nodeid);
                lapic_write(LAPIC_ID, ( lapic_read(LAPIC_ID) |
(APIC_ID_OFFSET<<24) ) ); // CPU apicid is from 0x10
        #endif
                if (cpu_init_detected(nodeid)) {
                        asm volatile ("jmp __cpu_reset");
                }
                distinguish_cpu_resets(nodeid);

also reset_test.c
change cpu_init_detected and distinguish_cpu_resets to take node id.

YH

-----Original Message-----
From: Ronald G. Minnich [mailto:[e-mail]] 
Sent: Tuesday, January 04, 2005 7:29 AM
To: Stefan Reinauer
Cc: [e-mail]
Subject: Re: mptable.c

On Tue, 4 Jan 2005, Stefan Reinauer wrote:
> I can have a look, if you can point me to some documentation. Is the
> utility supposed to through out a working mptable? The code it creates
> looks fundamentally different from the opteron boards' mptables.c
> versions.

It will toss out C code with the proper options. It's been so long since 
anyone has used it that I don't remember how to run it!

ron

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mptable.c

[Gin]

Is there an utility help to generate mptable.c?
I thought I saw someone saying so. Is it usable?

gin

mptable.c

[Ronald G. Minnich]

On Tue, 11 Jan 2005, Gin wrote:
> Is there an utility help to generate mptable.c?
> I thought I saw someone saying so. Is it usable?

util/mptable/mptable.c or some such. It is usable. It is not perfect by 
any means.

ron

problem with booting SMP linux kernel

[Gin]

The system failed when booting SMP linux kernel. It complains the IDE
lost interrupt. Things were working fine with the non-SMP linux kernel.
Has anyone seen it before?

Note that the SMP kernel image was stored in the IDE hard disk. So BIOS
was able to load the kernel to be executed. After Linux kernel took
control, somehow the interrupts was messed up. Here are the last few
messages over the console.

===========================================================
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hda: lost interrupt
hda: lost interrupt
hda: lost interrupt
hda: host protected area => 1
hda: 160086528 sectors (81964 MB) w/7936KiB Cache, CHS=158816/16/63,
UDMA(100)
hda: lost interrupt
hda: lost interrupt
ide-floppy driver 0.99.newide
Partition check:
 hda:<4>hda: dma_timer_expiry: dma status == 0x24  
============================================================

problem with booting SMP linux kernel

[Ronald G. Minnich]

On Wed, 12 Jan 2005, Gin wrote:
> The system failed when booting SMP linux kernel. It complains the IDE
> lost interrupt. Things were working fine with the non-SMP linux kernel.
> Has anyone seen it before?

bad mp table would be my guess.

ron

problem with booting SMP linux kernel

[Gin]

> bad mp table would be my guess.

I think the I/O APICs are incorrectly assigned to buses. From the kernel
messages, devices on bus 0 are transformed to high IRQs.

Can anyone one confirm that the mptable.c under src/tyan/s2735 is a good
one to boot SMP linux kernel? I might need to manually construct the MP
table for my board according to a good one.

Thanks,
gin