On Nov 15, 2011, at 23:40, Paul Mackerras wrote:
> On Tue, Nov 15, 2011 at 04:45:18PM -0600, Moffett, Kyle D wrote:
>>
>> I guess that's doable, although I have to admit that idea almost gives
>> me more of a headache than trying to fix up the 32-bit ASM.
>>
>> One thing that bothers me in partic
On Tue, Nov 15, 2011 at 04:45:18PM -0600, Moffett, Kyle D wrote:
> On Nov 15, 2011, at 17:29, Benjamin Herrenschmidt wrote:
> > On Mon, 2011-11-14 at 21:32 -0500, Kyle Moffett wrote:
> >> Unfortunately, I've been staring at PPC asm for long enough that I
> >> have a migraine headache and I'm going
On Nov 15, 2011, at 18:46, Benjamin Herrenschmidt wrote:
> On Tue, 2011-11-15 at 16:45 -0600, Moffett, Kyle D wrote:
>>
>> With that said, I'm curious about the origin of the PPC32 ASM. In
>> particular, it looks like it was generated by GCC at some point in the
>> distant past, and I'm wondering
On Tue, 2011-11-15 at 16:45 -0600, Moffett, Kyle D wrote:
> I guess that's doable, although I have to admit that idea almost gives
> me more of a headache than trying to fix up the 32-bit ASM.
>
> One thing that bothers me in particular is that both 32/64 versions of
> __copy_tofrom_user() are dr
On Nov 15, 2011, at 17:29, Benjamin Herrenschmidt wrote:
> On Mon, 2011-11-14 at 21:32 -0500, Kyle Moffett wrote:
>> Unfortunately, I've been staring at PPC asm for long enough that I
>> have a migraine headache and I'm going to have to stop here for now.
>> If somebody else wants to tackle fixing
On Mon, 2011-11-14 at 21:32 -0500, Kyle Moffett wrote:
> Unfortunately, I've been staring at PPC asm for long enough that I
> have a migraine headache and I'm going to have to stop here for now.
> If somebody else wants to tackle fixing up the 32-bit copy_page() and
> __copy_tofrom_user() routines
Ok, so I have a work-in-progress patch for cleaning up the CPU cache
handling, and I'd like some comments on the approach.
It's not really split up, and it's kind of a huge patch because it
tries to tackle a lot of things at once. Unfortunately, I'm having a
hard time finding good clean places to
