Stefan Roese sr@denx.de schrieb am Do., 9. Aug. 2018, 11:27:
Hi Daniel,
On 07.08.2018 16:51, Daniel Schwierzeck wrote:
2018-08-06 17:11 GMT+02:00 Stefan Roese sr@denx.de:
This is needed for the UBIFS support. The file is a copy of arch/xtensa/include/asm/atomic.h
could you try to import this file from Linux MIPS? Then we would have optimized functions.
Hmmm, looking at this file and the necessary headers that are not present in U-Boot right now, this seems a bit too much in my taste. Especially since U-Boot is not an OS and does not seed to support all kind of protection against other threads / CPUs.
Other way would be to import include/asm-generic/atomic.h from Linux so that all architectures in U-Boot could at least use a generic version.
I also took a quick glance at this and moving away from the asm/atomic.h inclusion in U-Boot seems quite intrusive right now. I would prefer to stay with this "simple" implementation for MIPS and perhaps move to using this one (or a similar one) at a later time, not being in the scope of this MIPS SoC addition.
What do you think? Would this be acceptable?
Thanks, Stefan
Yes okay, I'll put this onto my todo list