linux-kernel - Re: [PATCH 2/5] soc: qcom: smem: Use write-combine remap for SMEM

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Date:	Thu, 31 Mar 2016 13:28:21 -0500
From:	Andy Gross <andy.gross@...aro.org>
To:	Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:	linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] soc: qcom: smem: Use write-combine remap for SMEM

On Mon, Mar 28, 2016 at 09:35:23PM -0700, Bjorn Andersson wrote:
> Mapping the SMEM region as write combine makes the contiguous writes
> in SMD perform better and also allows us to do unaligned read and writes
> on ARM64.
> 
> Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Nice.  This should make things work much better.  The mappings should have been
writecombine from the get go.

Reviewed-by: Andy Gross <andy.gross@...aro.org>