linux-kernel - Re: [PATCH 0/2] mmc: tegra: Use proper DMA mask

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Date:   Fri, 20 Sep 2019 18:17:10 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Adrian Hunter <adrian.hunter@...el.com>
Cc:     Jon Hunter <jonathanh@...dia.com>,
        Nicolin Chen <nicoleotsuka@...il.com>,
        linux-mmc@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/2] mmc: tegra: Use proper DMA mask

On Fri, Sep 20, 2019 at 04:53:15PM +0200, Thierry Reding wrote:
> From: Thierry Reding <treding@...dia.com>
> 
> Hi,
> 
> this puts together the two patches from this thread:
> 
> 	http://patchwork.ozlabs.org/patch/1146705/
> 
> there hasn't been any activity there for a couple of weeks, so I thought
> I'd just throw them together and update the second patch to work on top
> of the first one.
> 
> The goal here is to avoid the use of bounce buffers and fix IOVA space
> issues when an IOMMU gets involved. The first patch introduces the
> ->set_dma_mask() host operation as proposed by Adrian and the second
> patch is just a rebase of Nicolin's Tegra SDHCI patch that uses the new
> host operation rather than doing it as part of ->enable_dma().
> 
> Thierry
> 
> 
> Adrian Hunter (1):
>   mmc: sdhci: Let drivers define their DMA mask
> 
> Nicolin Chen (1):
>   mmc: tegra: Implement ->set_dma_mask()
> 
>  drivers/mmc/host/sdhci-tegra.c | 48 ++++++++++++++++++++--------------
>  drivers/mmc/host/sdhci.c       | 12 +++------
>  drivers/mmc/host/sdhci.h       |  1 +
>  3 files changed, 33 insertions(+), 28 deletions(-)

Ugh, great. I misspelled linux-mmc@...r.kernel.org in my aliases file...

Ulf, Adrian, do you want me to resend for archival purposes?

Thierry

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