Re: [PATCH] PPC 85xx failure with odd memory sizes and CONFIG_HIGHMEM

On Oct 3, 2007, at 4:45 PM, Rune Torgersen wrote:

quoted

From: Kumar Gala
The code would have to change to allow for 1G of lowmem.
Max lowmem with KERNELBASE @ 0xc000_0000 is 768M.

Which is why I asked. On 82xx it is supported without a codechange by
setting KERNELBASE to 0xa000_0000 in Kconfig menu (and also changing
start of virtual mem, also done by config option).

we could make this work.  Its just no one's griped about needing it  
to date.

Its a bit of testing to make sure we respect the kernel config  
changes and a slight be of code to handle using up to 1G TLB sizes on  
e500v2 or greater.

- k