Subject: Re: PA-RISC 2.0 support
To: None <firstname.lastname@example.org>
From: Jochen Kunz <email@example.com>
Date: 03/31/2004 20:55:35
On Wed, 31 Mar 2004 09:52:13 -0700
Reid Orsten <firstname.lastname@example.org> wrote:
> Roughly what needs to be done for the 2.0's to work?=20
Support for the PA 2.0 TLB / PTE format.=20
I had a short look at this. It seems that PA 2.0 is a "linear" extension
of PA 1.1. It is possible to run 32 bit binaries (including the kernel)
on PA 2.0 machines when the PSW W bit is 0. But, obviously, the TLB and
everything related is extended to support the 64 bit physical addres
space. So this is somthing for you when you are interrested in some
quite low level, machine dependent virtual memory management work. This
is nothing you do in an afternoon.=20
See chapter 2 and 3 of parisc2.0.pdf. (can be found on
> I've got a couple lying around (C180, C360, J282).
> I've also got a 712-60 and a 715-65 that are being completely ignored;
> so I could help out with some general development as well.
Well. There are some other things like wscons to do, I still didn't get
the "energy" and time to dig into the longjmp / __sigreturn14 issue, gdb
for hppa / hp700 is broken, some MD pthread bits are missing... and an
other developer was looking at the ld.elf_so problem.
BTW: Thanks to Jens Konrad. He gave me K100 so I am now able to work on