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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Christoph Hellwig <hch@lst.de>
Cc: 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: Mon, 8 Feb 2021 16:00:25 +0100	[thread overview]
Message-ID: <YCFSCZz3qjdM5rJw@kroah.com> (raw)
In-Reply-To: <20210208145024.3320420-6-hch@lst.de>

On Mon, Feb 08, 2021 at 03:50:23PM +0100, Christoph Hellwig wrote:
> Lift the dma_default_coherent variable from the mips architecture code
> to the driver core.  This allows an architecture to sdefault all device
> to be DMA coherent at run time, even if the kernel is build with support
> for DMA noncoherent device.  By allowing device_initialize to ѕet the
> ->dma_coherent field to this default the amount of arch hooks required
> for this behavior can be greatly reduced.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
	linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
	iommu@lists.linux-foundation.org
Subject: Re: [PATCH 5/6] driver core: lift dma_default_coherent into common code
Date: Mon, 8 Feb 2021 16:00:25 +0100	[thread overview]
Message-ID: <YCFSCZz3qjdM5rJw@kroah.com> (raw)
In-Reply-To: <20210208145024.3320420-6-hch@lst.de>

On Mon, Feb 08, 2021 at 03:50:23PM +0100, Christoph Hellwig wrote:
> Lift the dma_default_coherent variable from the mips architecture code
> to the driver core.  This allows an architecture to sdefault all device
> to be DMA coherent at run time, even if the kernel is build with support
> for DMA noncoherent device.  By allowing device_initialize to ѕet the
> ->dma_coherent field to this default the amount of arch hooks required
> for this behavior can be greatly reduced.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

  reply	other threads:[~2021-02-08 15:00 UTC|newest]

Thread overview: 38+ 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 ` Christoph Hellwig
2021-02-08 14:50 ` [PATCH 1/6] MIPS/malta: simplify plat_setup_iocoherency Christoph Hellwig
2021-02-08 14:50   ` 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   ` 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 3/6] MIPS: move the {no,}nocoherentio " Christoph Hellwig
2021-02-08 14:50 ` [PATCH 4/6] MIPS: refactor the maybe coherent DMA indicators Christoph Hellwig
2021-02-08 14:50   ` Christoph Hellwig
2021-02-09 13:12   ` Thomas Bogendoerfer
2021-02-10  8:57     ` Christoph Hellwig
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 14:50   ` Christoph Hellwig
2021-02-08 15:00   ` Greg Kroah-Hartman [this message]
2021-02-08 15:00     ` Greg Kroah-Hartman
2021-02-08 15:57   ` Maciej W. Rozycki
2021-02-08 15:57     ` Maciej W. Rozycki
2021-02-08 16:10     ` Christoph Hellwig
2021-02-08 16:10       ` Christoph Hellwig
2021-02-09 11:23       ` Maciej W. Rozycki
2021-02-09 11:23         ` Maciej W. Rozycki
2021-02-15 13:13         ` Maciej W. Rozycki
2021-02-15 13:13           ` Maciej W. Rozycki
2021-02-21  3:32           ` Maciej W. Rozycki
2021-02-21  3:32             ` Maciej W. Rozycki
2021-02-22  7:59             ` Christoph Hellwig
2021-02-22  7:59               ` Christoph Hellwig
2021-02-22 10:42               ` Maciej W. Rozycki
2021-02-22 10:42                 ` Maciej W. Rozycki
2021-02-27 18:33                 ` Maciej W. Rozycki
2021-02-27 18:33                   ` Maciej W. Rozycki
2021-02-09 13:06   ` Thomas Bogendoerfer
2021-02-09 13:06     ` Thomas Bogendoerfer
2021-02-08 14:50 ` [PATCH 6/6] MIPS: remove CONFIG_DMA_PERDEV_COHERENT Christoph Hellwig
2021-02-08 14:50   ` Christoph Hellwig
2021-02-09  1:36   ` Huacai Chen

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