Re: [PATCH v2 0/5] introduce unaligned access under a Kconfig option

[Vineet Gupta]

On 1/30/19 8:32 AM, Eugeniy Paltsev wrote:
> As of today we enable unaligned access unconditionally on ARCv2.
> Lets move it under Kconfig option and use it actively in SW if it is
> enabled.
> 
> While I'm at it fix and optimise ARCv2 memcpy implementaion.
> 
> Changes v1->v2:
>  * Rebase onto last ARC changes.
>  * Don't add dummy symbol to ARC Kconfig
>  * Print info about unaligned access status in kernel log
> 
> Eugeniy Paltsev (5):
>   ARCv2: lib: memcpy: fix doing prefetchw outside of buffer
>   ARCv2: introduce unaligned access under a Kconfig option
>   ARCv2: use unaligned access in SW
>   ARCv2: LIB: MEMCPY: fixed and optimised routine
>   ARC: boot log: print unaligned memory access details

I made some mods, squashed some and pushed to for-next (it will land in next release)

Thx,
-vineet

> 
>  arch/arc/Kconfig                      |  9 +++++++
>  arch/arc/Makefile                     |  6 +++++
>  arch/arc/include/asm/irqflags-arcv2.h |  4 +++
>  arch/arc/kernel/head.S                | 14 +++++++----
>  arch/arc/kernel/intc-arcv2.c          |  2 +-
>  arch/arc/kernel/setup.c               | 13 +++++++---
>  arch/arc/lib/Makefile                 |  8 +++++-
>  arch/arc/lib/memcpy-archs-unaligned.S | 46 +++++++++++++++++++++++++++++++++++
>  arch/arc/lib/memcpy-archs.S           | 14 -----------
>  9 files changed, 92 insertions(+), 24 deletions(-)
>  create mode 100644 arch/arc/lib/memcpy-archs-unaligned.S
>