mptable.c

[Stefan Reinauer]

Hi,

I've dumped an mptable with the mptable utility of LinuxBIOS v2.

I'm getting this at some point:
MP Config Extended Table Entries:
--
System Address Space
 bus ID: 0 address type: I/O address
 address base: 0x9000
 address range: 0x2000
--
System Address Space
 bus ID: 0 address type: I/O address
 address base: 0x0
 address range: 0x100
--
System Address Space
 bus ID: 0 address type: memory address
 address base: 0xa0000
 address range: 0x20000
--
System Address Space
 bus ID: 0 address type: memory address
 address base: 0xaed00000
 address range: 0x2200000
--
System Address Space
 bus ID: 0 address type: prefetch address
 address base: 0xb0f00000
 address range: 0x100000

Am I supposed to delete it, or am I supposed to look up what it means
and implement it in mptable.c so LinuxBIOS can use it?

It won't compile like this, at least ;-)

Stefan

[Ronald G. Minnich]

On Tue, 4 Jan 2005, Stefan Reinauer wrote:
> Am I supposed to delete it, or am I supposed to look up what it means
> and implement it in mptable.c so LinuxBIOS can use it?

oh boy. It's been a year at least since I even looked at that thing.

I will try to see what it's trying to do but I can't really tell why it is 
doing this.

That type of thing was supposed to only come out between /* */

ron

[Stefan Reinauer]

* Ronald G. Minnich  [050104 14:56]:
> On Tue, 4 Jan 2005, Stefan Reinauer wrote:
> > Am I supposed to delete it, or am I supposed to look up what it means
> > and implement it in mptable.c so LinuxBIOS can use it?
>
> oh boy. It's been a year at least since I even looked at that thing.
>
> I will try to see what it's trying to do but I can't really tell why it is 
> doing this.

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.
> That type of thing was supposed to only come out between /* */

It doesn't, instead it comes right after all the smp_write_intsrc()
calls:

smp_write_intsrc(mc, mp_NMI, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x0, 0x0, MP_APIC_ALL, 0x1);
MP Config Extended Table Entries:
[..]

Especially the bus hierarchy information might be interesting to linux?

I'll strip the comments out and see whether things work

Stefan

[Ronald G. Minnich]

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