[PATCH] ARM: lib: use LDRD/STRD for data copy

[Rob Herring]

On 03/19/2012 03:55 AM, Russell King - ARM Linux wrote:
> On Mon, Mar 19, 2012 at 04:02:48PM +0900, Boojin Kim wrote:
>> This patch uses LDRD/STRD that loads and stores data as DWORD unit
>> for the copy of 8-words data.
>> It brings better performance than LDRM/STRM that was used originally.
> 
> And what about CPUs that don't have ldrd/strd ?
> 

And what about CPUs that do have ldrd/strd but is slower than ldm/stm?
I'm pretty sure that is almost everything currently out there.

Rob