nice, i have two spare G5 Powermacs at home that i will test this on! On Fri, 20 Jul 2018 at 16:58, Peter J. Philipp <p...@centroid.eu> wrote:
> On Sun, Jul 15, 2018 at 06:02:22PM +0200, Peter J. Philipp wrote: > > > > 60% of the work is in pmap.c, 20% of the work in trap.c, and 20% > > > > of the work is elsewhere. > > Hi, > > I've been working hard at this most of the week and I'm at a point now > where > I'm sick of eyeballing the code and doing theoretical changes. I need a > compiler to do a second look for me. Although this is the core powerpc64 > stuff, there is still the macppc stuff to port and I'll call those aim64. > > For a snapshot of what I've done: > > http://centroid.eu/private/powerpc64.tgz > > For the CVS repo: > > http://centroid.eu/cgi-bin/cvsweb/powerpc64/ > > And look for aim64 which will have a path such as: > > http://centroid.eu/cgi-bin/cvsweb/aim64/ > > There is still lots of hurdles but when I finish the aim64 stuff, I'll be > looking for two things. > > 1) A cross-compiler with powerpc64 support > 2) a 64-bit loader (like ofwboot) > > If you know an easier way to get a 64 bit loader other than hacking on > ofwboot > let me know. Or if there is no easier way perhaps someone wants to help me > with this? Working on a 64 bit loader would be awesome then I have to do > less > work and we meet in the middle. > > I know the code as is won't compile, but I'm willing to give it a pass and > work on fixing the errors that the compiler gives me. Given that, booting > a > first kernel will likely panic() it at boot, if it doesn't panic then I'm > extremely lucky. Or it's gonna be really slow as I screwed up on the > Segment > Lookaside Buffer or TLB cache or something. I'd like to see the day :-). > > Now I want to give everyone who worked on this code before me mad props! > The > code was pretty much almost 64 bit ready and I did a bit of cutting out, > and > pulling stuff in from FreeBSD and comparing with the PEM guide from IBM. > Thanks so far! Also thanks for FreeBSD who trailblazed my efforts and > gave me > somethign to work with. > > Here is a list of things that I did a visual inspection on and possibly > changes. What's not checked needs immediate attention still. > > > file first pass (eyes only) second pass > (compiler) > > -------------------------------+-----------------------+----------------------- > powerpc64/bus_dma.c X > powerpc64/bus_space.c X > powerpc64/copystr.c X > powerpc64/cpu_subr.c X > powerpc64/fpu.c X > powerpc64/genassym.cf X > powerpc64/in_cksum.c X > powerpc64/intr.c X > powerpc64/lock_machdep.c X > powerpc64/pmap.c X > powerpc64/process_machdep.c X > powerpc64/setjmp.S > powerpc64/softintr.c X > powerpc64/sys_machdep.c X > powerpc64/trap.c > powerpc64/vm_machdep.c > powerpc64/copyinout.c X > powerpc64/slb.c X > > ddb/db_disasm.c X > ddb/db_interface.c X > ddb/db_memrw.c X > ddb/db_trace.c X > > include/*.h X > > Best Regards, > -peter > >
