I see that cnxk has added inline assembly for the ARM "dsb st" barrier. We, too, would like to add a use of this instruction. Can a helper function be added to the atomics headers?
> drivers/ml/cnxk/cn10k_ml_dev.h:#define dsb_st ({ asm volatile("dsb st" : : :
> "memory"); })
What would the helper be named, rte_wsb()? I suppose it would be a NOP on all
other platforms.
Maybe we could add something for "dmb st" at the same time and get rid of that
assembly, too.
Thanks,
Andrew
