[Nouveau] [Bug 15206] [dualhead, randr12, ppc] Second head displays nothing

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=15206





--- Comment #9 from Robin Johnson <robbat2 at gentoo.org>  2008-06-20 19:35:38 PST ---
It's an endian problem.

0x36 into the BIOS, there is a pointer to the DCB.
On PPC, the pointer is _NOT_ swapped. If it does get swapped, then it points to
a valid DCB structure. The definitions of le16_to_cpu/le32_to_cpu need
changing!

0000030: 0100 0000 b010 0b18 3036 2f32 342f 3035
...
0001810: 18cb bddc 4e85 18d8 18e4 18f0 18fe 1812

See the attached hexdump of NVDA,BMP.


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