From: linux@arm.linux.org.uk (Russell King - ARM Linux)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] dma: change coherent memory to normal noncached
Date: Fri, 20 Nov 2009 21:06:19 +0000 [thread overview]
Message-ID: <20091120210619.GI16920@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <1258748951-10548-2-git-send-email-adharmap@codeaurora.org>
On Fri, Nov 20, 2009 at 12:29:11PM -0800, Abhijeet Dharmapurikar wrote:
> We need dma_alloc_coherent() to use its own page protection modifier,
> which causes it to behave the same as dma_alloc_writecombine() on ARMv7,
> and with the existing behaviour (for the time being) on ARMv6 and below.
> We should leave pgprot_noncached() well alone until we know that its
> other places need to be changed.
As I say, I have a large set of changes which impacts this patch, and
the original patch is already in my DMA patch queue.
next prev parent reply other threads:[~2009-11-20 21:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-11-20 20:29 [PATCH 1/2] system: mb, wmb and rmb should do a memory barrier even for non SMP Abhijeet Dharmapurikar
2009-11-20 20:29 ` [PATCH 2/2] dma: change coherent memory to normal noncached Abhijeet Dharmapurikar
2009-11-20 21:06 ` Russell King - ARM Linux [this message]
2009-11-20 21:04 ` [PATCH 1/2] system: mb, wmb and rmb should do a memory barrier even for non SMP Russell King - ARM Linux
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