From: Babu Moger <babu.mo...@oracle.com>
Date: Mon, 7 Aug 2017 17:52:48 -0600
> This series of patches updates the memcpy, memset, copy_to_user,
> copy_from_user etc for SPARC M7/M8 architecture.
This doesn't build, you cannot assume the existence of "%ncc", it is a
Furthermore there is no need to ever use %ncc in v9 targetted code
I'll fix that up, but this was a really disappointing build failure
Meanwhile, two questions:
1) Is this also faster on T4 as well? If it is, we can just get rid
of the T4 routines and use this on those chips as well.
2) There has been a lot of discussion and consideration put into how
a memcpy/memset routine might be really great for the local cpu
but overall pessimize performance for other cpus either locally
on the same core (contention for physical resources such as
ports to the store buffer and/or L3 cache) or on other cores.
Has any such study been done into these issues wrt. this new code?