[PATCH][v4] powerpc 44x: support for 256KB PAGE_SIZE

Milton Miller miltonm at bga.com
Sun Jan 18 13:32:25 EST 2009

On Jan 16, 2009, at 9:18 AM, Yuri Tikhonov wrote:
> On Friday, January 16, 2009 you wrote:
>> On Jan 12, 2009, at 4:49 PM, Yuri Tikhonov wrote:
>>> This patch adds support for 256KB pages on ppc44x-based boards.
>>> +config STDBINUTILS
>>> +     bool "Using standard binutils settings"
>>> +     depends on 44x
>>> +     default y
>> I think this should be
>>         bool "Using standard binutils settings" if 44x
>>         default y
>> that way we imply that all powerpc users are using the standard
>> binutils instead of only those using a 44x platform.  We still get the
>> intended effect of asking the user only on 44x.
>> I haven't looked at the resulting question or config order to see if 
>> it
>> makes sense to leave it here or put it closer to the page size.
>  I'm not sure about this. For 44x platforms - the STDBINUTILS option
> is reasonable, because it's used in the PAGE_SIZE selection process.
> But as regarding the other powerpcs the STDBINUTILS option will do
> nothing, but taking a superfluous string in configs. Are you sure this
> will be better ?

Ok I tried this out in menuconfig.  You are right that the depends on 
makes sense as it removes the option from the config file as not 
relevant.  But right now to enable 256K pages one has to go to platform 
setup to find this dependency, then has to go to general setup to find 
the shmem option at the bottom of the list in the embedded/expert 
section, then finally go to the kernel options menu to finally choose 
the page size.

Moving this question just before the page size choice removes one of 
those hidden menu, so I suggest that it be moved to just before the 
option that it allow be selected.


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