Thank you.
On Thu, May 9, 2019 at 1:50 AM Catalin Marinas <catalin.mari...@arm.com> wrote: > > Hi, > > On Wed, May 08, 2019 at 11:45:03AM -0700, Salman Qazi wrote: > > What is the intention behind icache_is_aliasing on big.LITTLE systems > > where some icaches are VIPT and others are PIPT? Is it meant to be > > conservative in some sense or should it be made per-CPU? > > It needs to cover the worst case scenario across all CPUs, i.e. aliasing > VIPT if one of the CPUs has this. We can't make it per-CPU because a > thread performing cache maintenance might be migrated to another CPU > with different cache policy (e.g. sync_icache_aliases()). > > -- > Catalin
