Re: Getting kernel 4.14 to run on PS3

Sounds like progress! Nice one!

I encountered several issues with this box but still believe Cell can do more.

We're at an incredible architecture right here, what concerns me most is that we still today miss the availability of the mightyness of this machine.

Gallium 0.2 is still working for example, what we need here is people to bring this stuff further.

Heck, I have 7 SPEs on this machine, time to do something useful with these!

220Gflops FTW! 

Am 31. Dezember 2017 23:50:14 MEZ schrieb Nathan Whitehorn [off-list ref]:

On 12/12/17 15:05, Geoff Levand wrote:

quoted

Hi Nathan,

On 12/08/2017 01:25 PM, Nathan Whitehorn wrote:

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I submitted patches to libfdt that resolve this particular ABI

breakage yesterday. If the patch gets merged, newer kernels should
become bootable again.

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Here's the link:

   https://github.com/dgibson/dtc/pull/12 (Add limited read-only

support for older (V2 and V3) device tree to libfdt.)

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I rebased your patch and have it in my ps3-queue
branch, but my ps3 with ps3-petitboot-09.11.30 still
would not boot with it.  I didn't spend any time yet
to look into why.

  

https://git.kernel.org/pub/scm/linux/kernel/git/geoff/ps3-linux.git/log/?h=ps3-queue

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-Geoff

I found a bug (and updated the pull request), which might help.

The other potential issue is that the fdt_get_property*() API in libfdt

is fundamentally incompatible with the way that V2 device trees align 
data accesses since it returns a pointer to a packed structure with
both 
the property header and data. However, the data in V2 devtrees may be 
offset by 4 bytes in a way that depends both on the offset within the 
tree and the length of the property and so cannot be represented only
as 
the tail of a fixed structure. I don't know if Linux uses those 
functions; I had to replace two uses in FreeBSD with the equivalent 
fdt_getprop*() calls to get things to work.
-Nathan