Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier call

From: Stephen Warren
Date: Wed Apr 06 2016 - 01:02:58 EST


On 04/04/2016 09:44 PM, Eric Anholt wrote:
dsb() requires an argument on arm64, so we needed to add "sy".
Instead, take this opportunity to switch to the same smp_wmb() call
that gic uses for its IPIs. This is a less strong barrier than we
were doing before (dmb(ishst) compared to dsb(sy)), but it seems to be
the correct one.

I assume all MMIO is part of the ish domain?

If so, the series,
Acked-by: Stephen Warren <swarren@xxxxxxxxxxxxx>