Re: [Qemu-devel] [OpenBIOS] CUDA has problems with Mac OS 10.4

[Programmingkid]

On Nov 11, 2015, at 4:32 PM, Andreas Tobler wrote:

> On 11.11.15 19:55, Programmingkid wrote:
>> 
>> On Nov 11, 2015, at 12:54 PM, Mark Cave-Ayland wrote:
>> 
>>> On 11/11/15 15:15, Programmingkid wrote:
>>> 
>>>> I built Cormac O'Brien's QEMU repo for Mac OS 9 and tried to boot my Mac 
>>>> OS 10.4 boot cd. Mac OS 10.4's kernel panics because of a CUDA problem. I 
>>>> did use the mac99 target. Here is the error message:
>>>> 
>>>> panic(cpu 0 caller 0x16E786CC): CUDA - TODO CHECK FOR TRANSACTION TYPE AND 
>>>> ERROR
>>>> 
>>>> This is the command I used: ./ppc-softmmu/qemu-system-ppc -boot d -cdrom 
>>>> ~/tiger.iso  -prom-env boot-args=-v -usb -M mac99
>>>> 
>>>> I think there is still something wrong with CUDA. But we might not have to 
>>>> "fix" it. When we use the mac99 target, the PowerMac3,1 Macintosh system 
>>>> is what we are trying to emulate. My sources indicate that the PowerMac3,1 
>>>> doesn't have a CUDA chip. This chip is used for ADB communications. Using 
>>>> it only on the BeigeG3 target makes sense.
>>>> 
>>>> My sources for the PowerMac3,1 system is this link: 
>>>> http://www.everymac.com/systems/apple/powermac_g4/specs/powermac_g4_350_agp.html
>>>> 
>>>> and this device tree:
>>>> 
>>>> PowerMac G4 device tree
>>>> 
>>>> ff839ab8: /cpus
>>>> ff839ce8:   /PowerPC,address@hidden
>>>> ff83a060:     /l2-cache
>>>> ff83ab58: /chosen
>>>> ff83ace8: /address@hidden
>>>> ff83af00: /openprom
>>>> ff83b008:   /client-services
>>>> ff83c1a8: /address@hidden
>>>> ff83c330:   /address@hidden
>>>> ff83c4a8:   /macos
>>>> ff83c528: /options
>>>> ff83c5a8: /aliases
>>>> ff83cec8: /packages
>>>> ff83cf30:   /deblocker
>>>> ff83d798:   /disk-label
>>>> ff83e198:   /obp-tftp
>>>> ff8439f0:   /mac-parts
>>>> ff844850:   /mac-files
>>>> ff847540:   /hfs-plus-files
>>>> ff84c1c8:   /fat-files
>>>> ff84def8:   /iso-9660-files
>>>> ff84eb00:   /bootinfo-loader
>>>> ff8507a0:   /xcoff-loader
>>>> ff8511b8:   /pe-loader
>>>> ff851b90:   /elf-loader
>>>> ff8531c0:   /usb-hid-class
>>>> ff8554d8:   /usb-ms-class
>>>> ff8576a8:   /sbp2-disk
>>>> ff858ac0:   /ata-disk
>>>> ff859cd8:   /atapi-disk
>>>> ff85b348:   /bootpath-search
>>>> ff861b68:   /terminal-emulator
>>>> ff861c00: /psuedo-hid
>>>> ff861c88:   /keyboard
>>>> ff862308:   /mouse
>>>> ff862820: /multiboot
>>>> ff86e7f0: /diagnostics
>>>> ff86e858: /tools-node
>>>> ff8704b8: /rtas
>>>> ff8706b8: /address@hidden
>>>> ff871180: /address@hidden
>>>> ff8713c8:   /address@hidden
>>>> ff871b10:     /cereal
>>>> ff8721c0: /address@hidden
>>>> ff898cd0:   /address@hidden
>>>> ff898f40:   /ATY,address@hidden
>>>> ff873268: /address@hidden
>>>> ff8742d8:   /address@hidden
>>>> ff876368:     /address@hidden
>>>> ff8773a0:       /address@hidden
>>>> ff877548:       /address@hidden
>>>> ff877630:         /extint-gpio1
>>>> ff8777c8:         /programmer-switch
>>>> ff877900:       /address@hidden
>>>> ff877af8:         /address@hidden
>>>> ff877c78:         /address@hidden
>>>> ff877df8:       /address@hidden
>>>> ff878000:         /address@hidden
>>>> ff8789a8:         /address@hidden
>>>> ff8792c0:       /address@hidden
>>>> ff879540:         /sound
>>>> ff879c40:       /address@hidden
>>>> ff879da8:       /address@hidden
>>>> ff87ccf0:         /rtc
>>>> ff87d3e0:         /power-mgt
>>>> ff8bf378:           /usb-power-mgt
>>>> ff87d648:       /address@hidden
>>>> ff87ded8:         /cereal
>>>> ff87e5a0:       /address@hidden
>>>> ff880318:         /disk
>>>> ff8809e8:       /address@hidden
>>>> ff882760:         /disk
>>>> ff882da8:       /address@hidden
>>>> ff884b20:         /disk
>>>> ff8864c8:     /address@hidden
>>>> ff888690:     /address@hidden
>>>> ff88dd50:     /address@hidden
>>>> ff8be3f0:       /address@hidden
>>>> ff8be580:         /address@hidden
>>>> ff893410:     /address@hidden
>>>> ff8752e8: /address@hidden
>>>> ff8bb128:   /address@hidden
>>> 
>>> I've done quite a bit of work on Cormac's tree (primarily to fix CUDA
>>> issues that broke OS X among other things) and posted it to the
>>> qemu-devel list at
>>> https://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg05556.html.
>>> 
>>> The patchset posted works well for me here, and I suspect will fix the
>>> issues that you've been seeing. Note that you'll also need the separate
>>> OpenBIOS binary mentioned in the link above if you want to try booting
>>> OS 9 since one of the OpenBIOS patches hasn't been applied to trunk
>>> since it regresses other images.
>> 
>> It looks like you are saying you wish to keep the CUDA device. Mac OS 9 is 
>> most
>> likely hard coded to expect via-pmu instead of via-cuda on the mac99 target.
>> Moving on to via-pmu might make QEMU more compatible with Mac OS 9.
>> I will still try your patches. Do you have a repo that I could just clone? 
>> It is a
>> lot less error prone than patches.
> 
> 
> I'd like to keep the CUDA too, FreeBSD PowerPC (32-bit) relies on it. 
> Unfortunately it still doesn't work ... but hope is still here ;)

On a new world Mac? I'm thinking a mistake has been made. Maybe you mean 
via-pmu? According to FreeBSD's website all Macintoshes with a built-in USB 
port are supported. This would only mean new world Macs and they only have a 
via-pmu - no cuda device. 

> Mark, is your complete qemu patch available somewhere? Then I could test 
> 32-bit PowerPC on FreeBSD which still hangs on adb... up to now.

I'm thinking removing ADB support would fix this problem. Most real new world 
Macs have no ADB support.