Re: [PATCH 27/44] sparc: remove leon_dma_ops
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- To: Andreas Larsson <andreas@xxxxxxxxxxx>
- Subject: Re: [PATCH 27/44] sparc: remove leon_dma_ops
- From: Christoph Hellwig <hch@xxxxxx>
- Date: Fri, 16 Jun 2017 10:45:42 +0200
- Cc: Christoph Hellwig <hch@xxxxxx>, x86@xxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-c6x-dev@xxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, linux-ia64@xxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxx, openrisc@xxxxxxxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-xtensa@xxxxxxxxxxxxxxxx, dmaengine@xxxxxxxxxxxxxxx, linux-tegra@xxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, linux-samsung-soc@xxxxxxxxxxxxxxx, iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
- In-reply-to: <593E4B82.70306@gaisler.com>
- References: <20170608132609.32662-1-hch@lst.de> <20170608132609.32662-28-hch@lst.de> <593E4B82.70306@gaisler.com>
- User-agent: Mutt/1.5.17 (2007-11-01)
On Mon, Jun 12, 2017 at 10:06:26AM +0200, Andreas Larsson wrote:
> Yes, it is needed. LEON systems are AMBA bus based. The common case here is
> DMA over AMBA buses. Some LEON systems have PCI bridges, but in general
> CONFIG_PCI is not a given.
Ok, and even for AMBA we use the pci ops, so I'll leave it in and drop
the comment from the commit.
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