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SubjectRe: [PATCH v2 20/28] ARCv2: barriers
On Tue, Jun 23, 2015 at 01:28:03PM +0530, Vineet Gupta wrote:
> +/*
> + * MMIO can also get buffered/optimized in micro-arch, so barriers needed
> + * Based on ARM model for the typical use case
> + *
> + * <writel_relaxed DMA buffer>
> + * <writel MMIO "go" reg>
> + * or:
> + * <readl MMIO "status" reg>
> + * <readl_relaxed DMA buffer>
> + *
> + * http://www.spinics.net/lists/kernel/msg2018397.html

http://lkml.kernel.org/r/20150622133656.GG1583@arm.com

Might I suggest you use the above link. Since we control kernel.org we
have redirect that URL to a archive of our choosing. This keeps the
links working even if spinics.net or marc.info were to go belly up.


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