On Tue, 2018-03-27 at 10:57 +0100, Will Deacon wrote: > > > > The interesting thing is that we do seem to have a whole LOT of these > > spurrious wmb before writel all over the tree, I suspect because of > > that incorrect recommendation in memory-barriers.txt. > > > > We should fix that. > > Patch below. Thoughts?
Looks good, we should probably also have a clearer (explicit) definition of that ordering in the driver-api doco. Now, to remove all those useless wmb's and find what other bugs they were papering over ... ;-) Cheers, Ben.
