Re: [Qemu-devel] [PATCH v2] target-mips: generate fences

[Richard Henderson]

On 09/09/2016 01:49 AM, Leon Alrae wrote:
> Actually the lightweight variants of SYNC exist also in earlier revisions of
> MIPS architecture; therefore this can be tested for example on mips32r2.
>
> According to manuals the support is optional, and if given CPU doesn't
> implement lightweight SYNCs (i.e. with stype != 0) then they are supposed
> to behave in the same way as SYNC 0. (which also means I simplified that here
> and always interpret the stype to take advantage of weaker ordering barriers).

Noted.  I've adjusted the patch in the tcg-next tree to always generate the 
weaker forms of sync.


r~