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

From Stephen Warren <swarren@wwwdotorg.org>
Newsgroups linux.kernel
Subject Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier call
Date 2016-04-06 07:10 +0200
Message-ID <rkNT3-7pr-9@gated-at.bofh.it> (permalink)
References <rkqa6-5dS-5@gated-at.bofh.it> <rkqa6-5dS-13@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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@wwwdotorg.org>

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Thread

[PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier call Eric Anholt <eric@anholt.net> - 2016-04-05 05:50 +0200
  Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier  call Stephen Warren <swarren@wwwdotorg.org> - 2016-04-06 07:10 +0200
    Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier call Eric Anholt <eric@anholt.net> - 2016-04-08 20:30 +0200
      Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier  call Stephen Warren <swarren@wwwdotorg.org> - 2016-04-09 07:30 +0200
        Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier call Eric Anholt <eric@anholt.net> - 2016-04-10 20:40 +0200
          Re: [PATCH 4/4] irqchip: bcm2836: Use a more generic memory barrier  call Stephen Warren <swarren@wwwdotorg.org> - 2016-04-11 18:00 +0200

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