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[Gc-linux-devel] I'am New

From: Michael Nicholls <phreakster@o2...> - 2004-01-25 11:45

Attachments: Message as HTML

Hi all

Just come across the project and thought I would help if I can.

I have a cube and PSO and BBA so I can run the code on hardware.

I can program in C and am familiar with Linux although have never done =
any kernel work.

Got the prealpha image to boot on my GC but not to run in DolWin.

Am currently trying to get the code to compile.

I am guessing the latest code is in CVS. Not used CVS before, but can =
see how it should work, but how do I merge the CVS work into a vanilla =
kernel? If I put the kernel in place and checkout onto it, it complains. =
Do I just have to checkout and copy the CVS tree into the kernel tree?

Any specific kernel config I need to do?

Will make produce a .dol or do I need to run the zImage against another =
tool?

Apart form all that, whats the next step that is being worked on?

Cheers

Mike

Re: [Gc-linux-devel] I'am New

From: Michael Steil <steil@in...> - 2004-01-25 15:05

Attachments: Message as HTML

> I have a cube and PSO and BBA so I can run the code on hardware.
> =A0
> I can program in C and am familiar with Linux although have never done=20=

> any kernel work.

Cool.

> =A0Got the prealpha image to boot on my GC but not to run in DolWin.

That's obsolete anyway.

> =A0Am currently trying to get the code to compile.
> =A0
> I am guessing the latest code is in CVS. Not used CVS before, but can=20=

> see how it should work, but how do I merge the CVS work into a vanilla=20=

> kernel? If I put the kernel in place=A0and checkout onto it,=20
> it=A0complains. Do I just have to checkout and copy the CVS tree into=20=

> the kernel tree?

Yes, it should be enough to copy the CVS data over vanilla 2.6.1. Some=20=

people have been talking about the "linuxppc" kernel, but the CVS uses=20=

the standard kernel.

> =A0Any specific kernel config I need to do?

The .config is located in arch/ppc/configs/gamecube_defconfig. Copy it=20=

to ".config".

> =A0Will make produce a .dol or do I need to run the zImage against=20
> another tool?

It will create a arch/ppc/boot/images/zImage.elf. Using "doltool -d"=20
you can create a .dol.

> =A0Apart form all that, whats the next step that is being worked on?

There is some preliminary interrupt code. EXI and BBA would be=20
important drivers now, as well as support for loading an initrd.

   Michael

Re: [Gc-linux-devel] I'am New

From: bryan <glytchbinary@co...> - 2004-01-25 20:24

Michael Nicholls wrote:

> Hi all
>  
> Just come across the project and thought I would help if I can.
>  
> I have a cube and PSO and BBA so I can run the code on hardware.
>  
> I can program in C and am familiar with Linux although have never done 
> any kernel work.
>  
> Got the prealpha image to boot on my GC but not to run in DolWin.
>  
> Am currently trying to get the code to compile.
>  
> I am guessing the latest code is in CVS. Not used CVS before, but can 
> see how it should work, but how do I merge the CVS work into a vanilla 
> kernel? If I put the kernel in place and checkout onto it, 
> it complains. Do I just have to checkout and copy the CVS tree into 
> the kernel tree?
>  
> Any specific kernel config I need to do?
>  
> Will make produce a .dol or do I need to run the zImage against 
> another tool?
>  
> Apart form all that, whats the next step that is being worked on?



i think the next step would be getting the bba working under linux so we 
can nfs mount a root file system.


>  
> Cheers
>  
> Mike

Re: [Gc-linux-devel] I'am New

From: Michael Nicholls <phreakster@o2...> - 2004-01-25 22:40

Right i have the kernel compling so now it is a case of understanding what
is going on.

The web CVS interface doesn't show the IRQ updates that Michael has made. Am
is missing something or does the web interface not update that often?

Is there a way i can get the cvs client to tell me which files were updated
most recently?

Will try and take a look at the way network drivers are structured and the
BBA code in gclib,but am also trying to understand the bootup.

I can boot as far as PID hash table entries: 64 (order 6: 512 bytes)

Is that as far as it should currently boot?

Mike

----- Original Message ----- 
From: "bryan" <glytchbinary@...>
To: <gc-linux-devel@...>
Sent: Sunday, January 25, 2004 8:13 PM
Subject: Re: [Gc-linux-devel] I'am New


> Michael Nicholls wrote:
>
> > Hi all
> >
> > Just come across the project and thought I would help if I can.
> >
> > I have a cube and PSO and BBA so I can run the code on hardware.
> >
> > I can program in C and am familiar with Linux although have never done
> > any kernel work.
> >
> > Got the prealpha image to boot on my GC but not to run in DolWin.
> >
> > Am currently trying to get the code to compile.
> >
> > I am guessing the latest code is in CVS. Not used CVS before, but can
> > see how it should work, but how do I merge the CVS work into a vanilla
> > kernel? If I put the kernel in place and checkout onto it,
> > it complains. Do I just have to checkout and copy the CVS tree into
> > the kernel tree?
> >
> > Any specific kernel config I need to do?
> >
> > Will make produce a .dol or do I need to run the zImage against
> > another tool?
> >
> > Apart form all that, whats the next step that is being worked on?
>
>
>
> i think the next step would be getting the bba working under linux so we
> can nfs mount a root file system.
>
>
> >
> > Cheers
> >
> > Mike
>
>
>
>
>
> -------------------------------------------------------
> The SF.Net email is sponsored by EclipseCon 2004
> Premiere Conference on Open Tools Development and Integration
> See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
> http://www.eclipsecon.org/osdn
> _______________________________________________
> Gc-linux-devel mailing list
> Gc-linux-devel@...
> https://lists.sourceforge.net/lists/listinfo/gc-linux-devel

Re: [Gc-linux-devel] I'am New

From: Michael Steil <steil@in...> - 2004-01-25 23:41

On Jan 25, 2004, at 11:38 PM, Michael Nicholls wrote:
> Right i have the kernel compling so now it is a case of understanding 
> what
> is going on.
>
> The web CVS interface doesn't show the IRQ updates that Michael has 
> made. Am
> is missing something or does the web interface not update that often?

The anonymous CVS is lagged by ~24 hours on SourceForge. The two new 
files are on http://www.gc-linux.org/down/ (gamecube.c, gamecube.h).

> Will try and take a look at the way network drivers are structured and 
> the
> BBA code in gclib,but am also trying to understand the bootup.

Cool. If you have questions - ask!

> I can boot as far as PID hash table entries: 64 (order 6: 512 bytes)
> Is that as far as it should currently boot?

That's weird. We have one machine (Alan) that doesn't boot at all, two 
machine (you, Costis) that boot up to this point (can it be 
reproduced?), and some machines that boot up to "Failed to mount root" 
(see screenshot). Can you please tell us when and where your GC has 
been bought?

   Michael

[Gc-linux-devel] Interrupts on the GameCube

From: Michael Steil <mist@c6...> - 2004-01-25 15:41

Hi!

tmbinc and me have been talking about how to implement interrupts on=20
the GameCube. The GameCube has an interrupt controller with 14 sources.=20=

E=05ach source is a device, and each device can trigger one or more=20
different interrupts by only having one line to the interrupt=20
controller. This is quite similar to other architectures: Interrupt 8=20
in this case comes from the VI (Video Interface), and the VI has 4=20
different sources for interrupts.

The original GameCube system software  presents a linear system to the=20=

user. It is aware of all possible interrupts sources at the second=20
level and presents them in a single list. The user must only register=20
for one specific VI interrupt, for example, and not for the common VI=20
interrupt and then check which one it was, using the VI registers.=20
GCLIb also implements this behavior.

It is my understanding that it is common in Linux to only implement the=20=

first level in the kernel interrupt handling code, i.e. 14 sources, and=20=

that drivers must do the rest manually. This is done because the=20
generic kernel interrupt code cannot be aware of all different devices=20=

in a system - on a normal computer you can change the configuration=20
easily and remove or add devices, like PCI cards. On the GameCube, the=20=

number of different interrupts is fixed; there is no way to add a=20
device that can trigger another interrupt, so the generic interrupt=20
code would already handle all interrupts at the sources and pretend=20
that this two-level design didn't exist.

There are pros for each side. Presenting two levels is more the Linux=20
way, while linearizing the interrupts is easier for driver developers=20
and has no real disadvantages. I tend to prefer the Linux way, tmbinc=20
seems to prefer the GameCube SDK way.

What are your opinions?

   Michael=

Re: [Gc-linux-devel] Interrupts on the GameCube

From: Groepaz <groepaz@gm...> - 2004-01-25 15:52

On Sunday 25 January 2004 16:41, Michael Steil wrote:
> easily and remove or add devices, like PCI cards. On the GameCube, the
> number of different interrupts is fixed; there is no way to add a
> device that can trigger another interrupt, 

mmmh... you could always have a custom device and/or a different device
connected to any of the externally (or even internally) available ports
that can trigger an interrupt.... "hardcoding" these kindof limits
the potential use a bit to much imho.

gpz

[Gc-linux-devel] Interrupts on the GameCube

From: Richard Eng <richard.eng@br...> - 2004-01-25 17:18

>There are pros for each side. Presenting two levels is more the Linux
>way, while linearizing the interrupts is easier for driver developers
>and has no real disadvantages. I tend to prefer the Linux way, tmbinc
>seems to prefer the GameCube SDK way.

I really prefer the two-level Linux way of doing it, simply because I think
it's
more clean. I my opinion the first level should not be aware of the
different
interrupts for the different devices. This should be up to the specific
driver to deal with.
Isn't it quite obvious that it's up to the second level dvd driver (or
whatever driver) to find out if it's a
dvd_transfer_complete or a dvd_transfer_error interrupt?

This is just my point of view anyway....


Richard Eng

[Gc-linux-devel] Re: Interrupts on the GameCube

From: Franck <root@de...> - 2004-01-25 18:04

erf, the message has forked :/

On Sun, 25 Jan 2004 18:19:46 +0100, Richard Eng wrote:
> I really prefer the two-level Linux way of doing it, simply because I think
> it's
> more clean. I my opinion the first level should not be aware of the
> different
> interrupts for the different devices. This should be up to the specific
> driver to deal with.
> Isn't it quite obvious that it's up to the second level dvd driver (or
> whatever driver) to find out if it's a
> dvd_transfer_complete or a dvd_transfer_error interrupt?
> 

I agree with that, and even if the numbers of interrupts are fixed and
there's no way to add foreign hardware, we should keep the Linux way to
handle interrupts...

> This is just my point of view anyway....

 And mine, but we need more opinions about that, the drivers part depends
 on that and we should take care of it ;)

Franck

[Gc-linux-devel] Interrupts on the GameCube

From: Felix Domke <tmbinc@el...> - 2004-01-25 18:44

(Sorry for not having proper f'ups, is it possible to post to the 
newsgroup (archive) instead of writing to the mailing list? i'd prefer 
the newsgroup interface).


Anyway, as Mist said, i prefer the linearized view of IRQs, at least of 
the EXI irqs.

Take a BBA driver as example. The BBA driver wants to handle the EXI2 
EXTIRQ. With my model, this would just be a "request_irq", as every 
linux driver would do it.

With the two-level-way, we would have to implement an exi_request_irq, 
which is imho something that the original request_irq could handle fine.
As we can't hardcode interrupt handling (because it might be a modem or 
a bba or anything), we would effectively dublicate a linux api. Why 
should we do this?

For example, on x86, where you have a cascaded irq, they are linearized, 
too. You don't have to handle irq 2 to see which hi irq you have to 
handle. You simply hook the hi irq and everything is fine.

I think EXI handling is different to DVD handling. I certainly don't 
want to linearize everything, only the EXI handling, since there are 
multiple drivers attaching to different exi IRQs.

VI, DVD etc. will all be ONE driver, so we wouldn't have to implement an 
API rather to hardcode the several sub-interrupts.


Felix

[Gc-linux-devel] Mailing List = Newsgroup

From: Michael Steil <steil@in...> - 2004-01-25 18:47

On Jan 25, 2004, at 7:45 PM, Felix Domke wrote:
> (Sorry for not having proper f'ups, is it possible to post to the 
> newsgroup (archive) instead of writing to the mailing list? i'd prefer 
> the newsgroup interface).

news://news.gmane.org/gmane.linux.ports.game-cube.devel
http://news.gmane.org/thread.php?group=gmane.linux.ports.game-cube.devel

Gmane allows that.

   Michael

RE: [Gc-linux-devel] Interrupts on the GameCube

From: Owen Watson <owenrw@ni...> - 2004-01-25 18:53

>There are pros for each side. Presenting two levels is more the Linux
>way, while linearizing the interrupts is easier for driver developers
>and has no real disadvantages. I tend to prefer the Linux way, tmbinc
>seems to prefer the GameCube SDK way.

Personally, although I'm not a kernel developer, I prefer the 'Linux way' of
doing things, as it makes more sense for the driver to work out exactly what
kind of interrupt was generated, rather than the kernel needing to know the
21 different types of DVD interrupts.

Although there is little chance of any extra hardware being added, so the
number of interrupts will always be same, the 'Linux way' is how this is
currently implemented in Linux, so why should it change just because this is
a Gamecube?

My opinion anyway...

Owen

[Gc-linux-devel] Re: Interrupts on the GameCube

From: poulpy <damien.chaumette@fr...> - 2004-01-25 22:25

> There are pros for each side. Presenting two levels is more the Linux 
> way, while linearizing the interrupts is easier for driver developers 
> and has no real disadvantages. I tend to prefer the Linux way, tmbinc 
> seems to prefer the GameCube SDK way.

The linux way sounds good to me, two levels are a cleaner way to do the 
job. Let's drivers deal with second level interrupts.

We can shorten some paths like this one, but I do beleive we're here to 
bring linux on the GC nicely not as some kind of rubber patch.

My two (euro)cents...

Damien

[Gc-linux-devel] elf.h: No such file or directory

From: Mathieu <mmalater@ny...> - 2004-01-25 20:59

Hi,

	I have just download devkitcube-r1.zip,
1. set PATH to /home/mathieu/GameCube/devkitcube/bin.
2. download linux261
3. cvs up gc-linux
4. copy gc-linux cvs over linux261
5 copy arch/ppc/configs/gamecube_defconfig to linux-2.6.1/.config
6 cd linux-2.6.1, and then I type make

Here is what I get:

   HOSTCC  scripts/fixdep
   HOSTLD  scripts/genksyms/genksyms
   HOSTCC  scripts/split-include
   HOSTCC  scripts/conmakehash
   HOSTCC  scripts/docproc
   HOSTCC  scripts/kallsyms
   CC      scripts/empty.o
   HOSTCC  scripts/mk_elfconfig
scripts/mk_elfconfig.c:4:17: elf.h: No such file or directory
scripts/mk_elfconfig.c: In function `main':
scripts/mk_elfconfig.c:9: error: `EI_NIDENT' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:9: error: (Each undeclared identifier is reported 
only once
scripts/mk_elfconfig.c:9: error: for each function it appears in.)
scripts/mk_elfconfig.c:19: error: `ELFMAG' undeclared (first use in this 
function)
scripts/mk_elfconfig.c:19: error: `SELFMAG' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:23: error: `EI_CLASS' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:24: error: `ELFCLASS32' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:27: error: `ELFCLASS64' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:33: error: `EI_DATA' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:34: error: `ELFDATA2LSB' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:37: error: `ELFDATA2MSB' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:9: warning: unused variable `ei'
make[1]: *** [scripts/mk_elfconfig] Error 1
make: *** [scripts] Error 2


What am I doing wrong

Thanks a bunch
Mathieu
Ps:  I had to remove the cygwin1.dll that come with the devkitcube, 
otherwise I get:
cygheap version mismatch detected - 0x61600000/0x615F0000 ...

[Gc-linux-devel] Re: elf.h: No such file or directory

From: Mathieu <mmalater@ny...> - 2004-01-25 21:30

Ok, I am answering myself. I reread the README of devkitcube, and I put 
alias:

alias powerpc-eabi-elf-gcc = 'powerpc-eabi-elf-gcc 
-I/cygdrive/c/devkitcube/powerpc-eabi-elf/include'
alias powerpc-eabi-elf-gcc  = 'powerpc-eabi-elf-gcc 
-L/cygdrive/c/devkitcube/powerpc-eabi-elf/lib'

But still the makefile is using gcc (I turn Verbose on) and I get:

make -f scripts/Makefile.build obj=scripts
   gcc -Wp,-MD,scripts/.fixdep.d -Wall -Wstrict-prototypes -O2 
-fomit-frame-pointer        -o scripts/fixdep scripts/fixdep.c
make -f scripts/Makefile.build obj=scripts/genksyms
   gcc  -o scripts/genksyms/genksyms scripts/genksyms/genksyms.o 
scripts/genksyms/parse.o scripts/genksyms/lex.o
   gcc -Wp,-MD,scripts/.split-include.d -Wall -Wstrict-prototypes -O2 
-fomit-frame-pointer        -o scripts/split-include scripts/split-include.c
   gcc -Wp,-MD,scripts/.conmakehash.d -Wall -Wstrict-prototypes -O2 
-fomit-frame-pointer        -o scripts/conmakehash scripts/conmakehash.c
   gcc -Wp,-MD,scripts/.docproc.d -Wall -Wstrict-prototypes -O2 
-fomit-frame-pointer        -o scripts/docproc scripts/docproc.c
   gcc -Wp,-MD,scripts/.kallsyms.d -Wall -Wstrict-prototypes -O2 
-fomit-frame-pointer        -o scripts/kallsyms scripts/kallsyms.c
   powerpc-eabi-elf-gcc -Wp,-MD,scripts/.empty.o.d -nostdinc 
-iwithprefix include -D__KERNEL__ -Iinclude  -Iarch/ppc -D__KERNEL__ 
-Iinclude  -Iarch/ppc -Wall -Wstrict-prototypes -Wno-trigraphs 
-fno-strict-aliasing -fno-common -Iarch/ppc -msoft-float -pipe 
-ffixed-r2 -Wno-uninitialized -mmultiple -mstring -O2 
-fomit-frame-pointer     -DKBUILD_BASENAME=empty -DKBUILD_MODNAME=empty 
-c -o scripts/.tmp_empty.o scripts/empty.c
   gcc -Wp,-MD,scripts/.mk_elfconfig.d -Wall -Wstrict-prototypes -O2 
-fomit-frame-pointer        -o scripts/mk_elfconfig scripts/mk_elfconfig.c
scripts/mk_elfconfig.c:4:17: elf.h: No such file or directory
scripts/mk_elfconfig.c: In function `main':
scripts/mk_elfconfig.c:9: error: `EI_NIDENT' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:9: error: (Each undeclared identifier is reported 
only once
scripts/mk_elfconfig.c:9: error: for each function it appears in.)
scripts/mk_elfconfig.c:19: error: `ELFMAG' undeclared (first use in this 
function)
scripts/mk_elfconfig.c:19: error: `SELFMAG' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:23: error: `EI_CLASS' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:24: error: `ELFCLASS32' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:27: error: `ELFCLASS64' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:33: error: `EI_DATA' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:34: error: `ELFDATA2LSB' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:37: error: `ELFDATA2MSB' undeclared (first use in 
this function)
scripts/mk_elfconfig.c:9: warning: unused variable `ei'
make[1]: *** [scripts/mk_elfconfig] Error 1
make: *** [scripts] Error 2



any trick very welcome...
thanks
mathieu



Mathieu wrote:

> Hi,
> 
>     I have just download devkitcube-r1.zip,
> 1. set PATH to /home/mathieu/GameCube/devkitcube/bin.
> 2. download linux261
> 3. cvs up gc-linux
> 4. copy gc-linux cvs over linux261
> 5 copy arch/ppc/configs/gamecube_defconfig to linux-2.6.1/.config
> 6 cd linux-2.6.1, and then I type make
> 
> Here is what I get:
> 
>   HOSTCC  scripts/fixdep
>   HOSTLD  scripts/genksyms/genksyms
>   HOSTCC  scripts/split-include
>   HOSTCC  scripts/conmakehash
>   HOSTCC  scripts/docproc
>   HOSTCC  scripts/kallsyms
>   CC      scripts/empty.o
>   HOSTCC  scripts/mk_elfconfig
> scripts/mk_elfconfig.c:4:17: elf.h: No such file or directory
> scripts/mk_elfconfig.c: In function `main':
> scripts/mk_elfconfig.c:9: error: `EI_NIDENT' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:9: error: (Each undeclared identifier is reported 
> only once
> scripts/mk_elfconfig.c:9: error: for each function it appears in.)
> scripts/mk_elfconfig.c:19: error: `ELFMAG' undeclared (first use in this 
> function)
> scripts/mk_elfconfig.c:19: error: `SELFMAG' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:23: error: `EI_CLASS' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:24: error: `ELFCLASS32' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:27: error: `ELFCLASS64' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:33: error: `EI_DATA' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:34: error: `ELFDATA2LSB' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:37: error: `ELFDATA2MSB' undeclared (first use in 
> this function)
> scripts/mk_elfconfig.c:9: warning: unused variable `ei'
> make[1]: *** [scripts/mk_elfconfig] Error 1
> make: *** [scripts] Error 2
> 
> 
> What am I doing wrong
> 
> Thanks a bunch
> Mathieu
> Ps:  I had to remove the cygwin1.dll that come with the devkitcube, 
> otherwise I get:
> cygheap version mismatch detected - 0x61600000/0x615F0000 ...
> 
> 
> 
> -------------------------------------------------------
> The SF.Net email is sponsored by EclipseCon 2004
> Premiere Conference on Open Tools Development and Integration
> See the breadth of Eclipse activity. February 3-5 in Anaheim, CA.
> http://www.eclipsecon.org/osdn