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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Christoph Hellwig <hch@lst.de>
Cc: iommu@lists.linux-foundation.org,
	Alexey Kardashevskiy <aik@ozlabs.ru>,
	linuxppc-dev@lists.ozlabs.org,
	Lu Baolu <baolu.lu@linux.intel.com>,
	Joerg Roedel <joro@8bytes.org>,
	Robin Murphy <robin.murphy@arm.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/4] dma-mapping: add a dma_ops_bypass flag to struct device
Date: Tue, 14 Apr 2020 14:47:12 +0200	[thread overview]
Message-ID: <20200414124712.GA720223@kroah.com> (raw)
In-Reply-To: <20200414122506.438134-4-hch@lst.de>

On Tue, Apr 14, 2020 at 02:25:05PM +0200, Christoph Hellwig wrote:
> Several IOMMU drivers have a bypass mode where they can use a direct
> mapping if the devices DMA mask is large enough.  Add generic support
> to the core dma-mapping code to do that to switch those drivers to
> a common solution.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  include/linux/device.h |  6 ++++
>  kernel/dma/mapping.c   | 70 +++++++++++++++++++++++++++++-------------
>  2 files changed, 55 insertions(+), 21 deletions(-)

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

WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
	linuxppc-dev@lists.ozlabs.org, Joerg Roedel <joro@8bytes.org>,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	Robin Murphy <robin.murphy@arm.com>,
	Lu Baolu <baolu.lu@linux.intel.com>
Subject: Re: [PATCH 3/4] dma-mapping: add a dma_ops_bypass flag to struct device
Date: Tue, 14 Apr 2020 14:47:12 +0200	[thread overview]
Message-ID: <20200414124712.GA720223@kroah.com> (raw)
In-Reply-To: <20200414122506.438134-4-hch@lst.de>

On Tue, Apr 14, 2020 at 02:25:05PM +0200, Christoph Hellwig wrote:
> Several IOMMU drivers have a bypass mode where they can use a direct
> mapping if the devices DMA mask is large enough.  Add generic support
> to the core dma-mapping code to do that to switch those drivers to
> a common solution.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  include/linux/device.h |  6 ++++
>  kernel/dma/mapping.c   | 70 +++++++++++++++++++++++++++++-------------
>  2 files changed, 55 insertions(+), 21 deletions(-)

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

WARNING: multiple messages have this Message-ID (diff)
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: Christoph Hellwig <hch@lst.de>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	iommu@lists.linux-foundation.org,
	Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH 3/4] dma-mapping: add a dma_ops_bypass flag to struct device
Date: Tue, 14 Apr 2020 14:47:12 +0200	[thread overview]
Message-ID: <20200414124712.GA720223@kroah.com> (raw)
In-Reply-To: <20200414122506.438134-4-hch@lst.de>

On Tue, Apr 14, 2020 at 02:25:05PM +0200, Christoph Hellwig wrote:
> Several IOMMU drivers have a bypass mode where they can use a direct
> mapping if the devices DMA mask is large enough.  Add generic support
> to the core dma-mapping code to do that to switch those drivers to
> a common solution.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---
>  include/linux/device.h |  6 ++++
>  kernel/dma/mapping.c   | 70 +++++++++++++++++++++++++++++-------------
>  2 files changed, 55 insertions(+), 21 deletions(-)

Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
_______________________________________________
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iommu@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/iommu

  reply	other threads:[~2020-04-14 12:47 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-14 12:25 generic DMA bypass flag v3 Christoph Hellwig
2020-04-14 12:25 ` Christoph Hellwig
2020-04-14 12:25 ` Christoph Hellwig
2020-04-14 12:25 ` [PATCH 1/4] dma-mapping: move the remaining DMA API calls out of line Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-15  2:26   ` Alexey Kardashevskiy
2020-04-15  2:26     ` Alexey Kardashevskiy
2020-04-15  2:26     ` Alexey Kardashevskiy
2020-04-15  6:18     ` Christoph Hellwig
2020-04-15  6:18       ` Christoph Hellwig
2020-04-15  6:18       ` Christoph Hellwig
2020-04-15 11:21       ` Alexey Kardashevskiy
2020-04-15 11:21         ` Alexey Kardashevskiy
2020-04-15 11:21         ` Alexey Kardashevskiy
2020-04-17  7:58         ` Christoph Hellwig
2020-04-17  7:58           ` Christoph Hellwig
2020-04-17  7:58           ` Christoph Hellwig
2020-05-05  4:18           ` Alexey Kardashevskiy
2020-05-05  4:18             ` Alexey Kardashevskiy
2020-05-05  4:18             ` Alexey Kardashevskiy
2020-05-09  8:19             ` Christoph Hellwig
2020-05-09  8:19               ` Christoph Hellwig
2020-05-09  8:19               ` Christoph Hellwig
2020-05-09 14:07               ` Alexey Kardashevskiy
2020-05-09 14:07                 ` Alexey Kardashevskiy
2020-05-09 14:07                 ` Alexey Kardashevskiy
2020-06-03  4:13               ` Alexey Kardashevskiy
2020-06-03  4:13                 ` Alexey Kardashevskiy
2020-06-03  4:13                 ` Alexey Kardashevskiy
2020-07-07  0:43                 ` Alexey Kardashevskiy
2020-07-07  0:43                   ` Alexey Kardashevskiy
2020-07-07  0:43                   ` Alexey Kardashevskiy
2020-07-07 14:51                   ` Christoph Hellwig
2020-07-07 14:51                     ` Christoph Hellwig
2020-07-07 14:51                     ` Christoph Hellwig
2020-04-14 12:25 ` [PATCH 2/4] dma-mapping: inline the fast path dma-direct calls Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-14 12:25 ` [PATCH 3/4] dma-mapping: add a dma_ops_bypass flag to struct device Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-14 12:47   ` Greg Kroah-Hartman [this message]
2020-04-14 12:47     ` Greg Kroah-Hartman
2020-04-14 12:47     ` Greg Kroah-Hartman
2020-04-18 12:42   ` Joerg Roedel
2020-04-18 12:42     ` Joerg Roedel
2020-04-18 12:42     ` Joerg Roedel
2020-04-19  8:00     ` Christoph Hellwig
2020-04-19  8:00       ` Christoph Hellwig
2020-04-19  8:00       ` Christoph Hellwig
2020-04-19 12:25       ` Joerg Roedel
2020-04-19 12:25         ` Joerg Roedel
2020-04-19 12:25         ` Joerg Roedel
2020-04-19 14:46         ` Alexey Kardashevskiy
2020-04-19 14:46           ` Alexey Kardashevskiy
2020-04-19 14:46           ` Alexey Kardashevskiy
2020-04-14 12:25 ` [PATCH 4/4] powerpc: use the generic dma_ops_bypass mode Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig
2020-04-14 12:25   ` Christoph Hellwig

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