From: Ralf Baechle <ralf@linux-mips.org>
To: Kevin Cernekee <cernekee@gmail.com>
Cc: linux-mips@linux-mips.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/3] MIPS: Extend plat_* abstractions, cache support
Date: Fri, 24 Apr 2009 06:23:10 +0200 [thread overview]
Message-ID: <20090424042310.GA19096@linux-mips.org> (raw)
In-Reply-To: <0483452db22e72f57289e63fcf097120d94c2a37.1240533480.git@localhost>
On Thu, Apr 23, 2009 at 05:03:43PM -0700, Kevin Cernekee wrote:
> I am upgrading an SoC to the 2.6.29.1 kernel from an earlier version,
> and in the process I am switching over the old board support
> customizations to use the newer, cleaner plat_* functions. I found two
> cases where the plat_* functions did not provide enough information,
> so I had to modify the API:
>
> plat_unmap_dma_mem() - Our handler needs to know the size and direction
> of the DMA mapping. This information is not encoded in the DMA address,
> so it needed to be passed in explicitly.
>
> plat_dma_addr_to_phys() - The bus<->physical address mappings differ
> based on which bus is being used. It is not always possible to infer
> which bus is being used from the bus address alone, so I added a
> "struct device" to the function definition.
>
> Also, our MIPS core uses 64-byte D$ lines, so I needed to generate the
> corresponding blast* functions.
>
> These patches apply against the linux-mips.org GIT tree.
Queued for 2.6.31. Thanks Kevin!
Which SoC port are you working on btw?
Ralf
prev parent reply other threads:[~2009-04-24 4:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-24 0:03 [PATCH 0/3] MIPS: Extend plat_* abstractions, cache support Kevin Cernekee
2009-04-24 0:03 ` [PATCH 1/3] MIPS: Add size and direction arguments to plat_unmap_dma_mem() Kevin Cernekee
2009-04-24 0:25 ` [PATCH 2/3] MIPS: Pass struct device to plat_dma_addr_to_phys() Kevin Cernekee
2009-04-24 0:36 ` [PATCH 3/3] MIPS: Support 64-byte D-cache line size Kevin Cernekee
2009-04-24 1:46 ` [PATCH 0/3] MIPS: Extend plat_* abstractions, cache support Bob Zhang
2009-04-24 1:46 ` Bob Zhang
2009-04-24 4:23 ` Ralf Baechle [this message]
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