Anton Blanchard wrote:
Unaligned stores take alignment exceptions on POWER7 running in little-endian.
This is a dumb little-endian base memcpy that prevents unaligned stores.
Once booted the feature fixup code switches over to the VMX copy loops
(which are already endian safe).
The question is w
From: Philippe Bergheaud
Unaligned stores take alignment exceptions on POWER7 running in little-endian.
This is a dumb little-endian base memcpy that prevents unaligned stores.
Once booted the feature fixup code switches over to the VMX copy loops
(which are already endian safe).
The question is
Unaligned stores take alignment exceptions on POWER7 running in little-endian.
This is a dumb little-endian base memcpy that prevents unaligned stores.
Once booted the feature fixup code switches over to the VMX copy loops
(which are already endian safe).
The question is what we do before that swi
OK, can you add that and/or maybe antons description to the patch changelog?
Mikey
On Wed, Nov 6, 2013 at 9:21 PM, Philippe Bergheaud
wrote:
> Michael Neuling wrote:
>>
>> Philippe Bergheaud wrote:
>>
>>
>>> Unaligned stores take alignment exceptions on POWER7 running in
>>> little-endian.
>>>
Hi,
> > Unaligned stores take alignment exceptions on POWER7 running in
> > little-endian. This is a dumb little-endian base memcpy that
> > prevents unaligned stores. It is replaced by the VMX memcpy at boot.
>
> Is this any faster than the generic version?
Once booted the feature fixup code s
Michael Neuling wrote:
Philippe Bergheaud wrote:
Unaligned stores take alignment exceptions on POWER7 running in little-endian.
This is a dumb little-endian base memcpy that prevents unaligned stores.
It is replaced by the VMX memcpy at boot.
Is this any faster than the generic version?
Philippe Bergheaud wrote:
> Unaligned stores take alignment exceptions on POWER7 running in little-endian.
> This is a dumb little-endian base memcpy that prevents unaligned stores.
> It is replaced by the VMX memcpy at boot.
Is this any faster than the generic version?
Mikey
>
> Signed-off-b
Unaligned stores take alignment exceptions on POWER7 running in little-endian.
This is a dumb little-endian base memcpy that prevents unaligned stores.
It is replaced by the VMX memcpy at boot.
Signed-off-by: Philippe Bergheaud
---
arch/powerpc/include/asm/string.h |4
arch/powerpc/kern
