From: "Maciej W. Rozycki" <macro@orcam.me.uk>
To: Christoph Hellwig <hch@lst.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
iommu@lists.linux-foundation.org,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/6] driver core: lift dma_default_coherent into common code
Date: Tue, 9 Feb 2021 12:23:11 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.21.2102091213070.35623@angie.orcam.me.uk> (raw)
In-Reply-To: <20210208161043.GA14083@lst.de>
On Mon, 8 Feb 2021, Christoph Hellwig wrote:
> > Do you need to have this verified anyhow? I only have a non-coherent 5Kc
> > Malta though.
>
> If you get a chance to test this logic, that would be great.
I'll try to give it a hit in the next few days then. Installed in my
Malta I have a DEFPA, which is about as serious a DMA user as a piece of
classic PCI hardware could be. I need to debug the issue of another DEFPA
not working with my POWER9 system, possibly due to an IOMMU handling bug
(hopefully not broken host hardware), so I'll take the opportunity and do
it all at once.
Maciej
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next prev parent reply other threads:[~2021-02-09 11:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-08 14:50 MIPS noncoherent DMA cleanups Christoph Hellwig
2021-02-08 14:50 ` [PATCH 1/6] MIPS/malta: simplify plat_setup_iocoherency Christoph Hellwig
2021-02-08 14:50 ` [PATCH 2/6] MIPS/alchemy: factor out the DMA coherent setup Christoph Hellwig
2021-02-08 14:50 ` [PATCH 3/6] MIPS: move the {no, }nocoherentio options to the malta setup code Christoph Hellwig
2021-02-08 14:50 ` [PATCH 4/6] MIPS: refactor the maybe coherent DMA indicators Christoph Hellwig
[not found] ` <20210209131237.GB11915@alpha.franken.de>
2021-02-10 8:57 ` Christoph Hellwig
2021-02-08 14:50 ` [PATCH 5/6] driver core: lift dma_default_coherent into common code Christoph Hellwig
2021-02-08 15:00 ` Greg Kroah-Hartman
2021-02-08 15:57 ` Maciej W. Rozycki
2021-02-08 16:10 ` Christoph Hellwig
2021-02-09 11:23 ` Maciej W. Rozycki [this message]
2021-02-15 13:13 ` Maciej W. Rozycki
2021-02-21 3:32 ` Maciej W. Rozycki
2021-02-22 7:59 ` Christoph Hellwig
2021-02-22 10:42 ` Maciej W. Rozycki
2021-02-27 18:33 ` Maciej W. Rozycki
2021-02-09 13:06 ` Thomas Bogendoerfer
2021-02-08 14:50 ` [PATCH 6/6] MIPS: remove CONFIG_DMA_PERDEV_COHERENT Christoph Hellwig
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