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Date: Thu, 14 Jan 2016 12:12:53 -0800
From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
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To: Will Deacon <will.deacon@arm.com>
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Subject: Re: [v3,11/41] mips: reuse asm-generic/barrier.h
References: <56945366.2090504@imgtec.com> <20160112092711.GP6344@twins.programming.kicks-ass.net> <20160112102555.GV6373@twins.programming.kicks-ass.net> <20160112104012.GW6373@twins.programming.kicks-ass.net> <20160112114111.GB15737@arm.com> <569565DA.2010903@imgtec.com> <20160113104516.GE25458@arm.com> <56969F4B.7070001@imgtec.com> <20160113204844.GV6357@twins.programming.kicks-ass.net> <5696BA6E.4070508@imgtec.com> <20160114120445.GB15828@arm.com>
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On 01/14/2016 04:04 AM, Will Deacon wrote:
> Consequently, it's important that the architecture back-ends implement 
> these portable primitives (e.g. smp_mb()) in a way that satisfies the 
> kernel memory model so that core code doesn't need to worry about the 
> underlying architecture for synchronisation purposes.

It seems you don't listen me. I said multiple times - MIPS 
implementation of SYNC_RMB/SYNC_WMB/SYNC_MB/SYNC_ACQUIRE/SYNC_RELEASE 
instructions matches the description of 
smp_rmb/smp_wmb/smp_mb/sync_acquire/sync_release from 
Documentation/memory-barriers.txt file.

What else do you want from me - RTL or microArch design for that?

- Leonid.