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From: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Krishna Reddy <vdumpa-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: adrian.hunter-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	ulf.hansson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org,
	jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
	linux-mmc-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] mmc: tegra: Mark 64 bit dma broken on Tegra186
Date: Fri, 8 Sep 2017 23:59:22 +0200	[thread overview]
Message-ID: <20170908215636.GA4996@aiwendil> (raw)
In-Reply-To: <1504900113-8983-1-git-send-email-vdumpa-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

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On Fri, Sep 08, 2017 at 12:48:33PM -0700, Krishna Reddy wrote:
> SDHCI controllers on Tegra186 support 40 bit addressing.
> IOVA addresses are 48-bit wide on Tegra186.
> SDHCI host common code sets dma mask as either 32-bit or 64-bit.
> To avoid access issues when SMMU is enabled, disable 64-bit dma.
> 
> Signed-off-by: Krishna Reddy <vdumpa-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
> ---
>  drivers/mmc/host/sdhci-tegra.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)

This matches a local commit:

Tested-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Acked-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

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  parent reply	other threads:[~2017-09-08 21:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-08 19:48 [PATCH] mmc: tegra: Mark 64 bit dma broken on Tegra186 Krishna Reddy
     [not found] ` <1504900113-8983-1-git-send-email-vdumpa-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2017-09-08 21:59   ` Thierry Reding [this message]
2017-09-22  9:45   ` Ulf Hansson
2017-09-11  5:47 ` Adrian Hunter

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