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

Kumar Gala galak at kernel.crashing.org
Thu Oct 4 08:48:18 EST 2007

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

>> 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

More information about the Linuxppc-embedded mailing list