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From: s-anna@ti.com (Suman Anna)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/2] remoteproc: add support to handle internal memories
Date: Fri, 13 Feb 2015 10:13:40 -0600	[thread overview]
Message-ID: <54DE22B4.7020807@ti.com> (raw)
In-Reply-To: <CAK=WgbaK+TNJR1UHm7orcFk7kaGTWMQsW0XhX_t7qvWwe+YJEg@mail.gmail.com>

Ohad,

On 02/12/2015 11:20 PM, Ohad Ben-Cohen wrote:
> On Thu, Feb 12, 2015 at 10:54 PM, Suman Anna <s-anna@ti.com> wrote:
>> My original motivation was that it would only need to be added on
>> firmwares requiring support for loading into internal memories,
>> otherwise, these are something left to be managed by the software
>> running on the remote processor completely, and MPU will not even touch
>> them.
> 
> Sure. But even if you guys will use this interface correctly, this
> patch essentially exposes ioremap to user space, which is something we
> generally want to avoid.
> 
>> So, let me know if this is a NAK. If so, we have two options - one to go
>> the sram node model where each of them have to be defined separately,
>> and have a specific property in the rproc nodes to be able to get the
>> gen_pool handles. The other one is simply to define these as <reg> and
>> use devm_ioremap_resource() (so use DT for defining the regions instead
>> of a resource table entry).
> 
> Any approach where these regions are defined explicitly really sounds
> better. If you could look into these two alternatives that would be
> great.

OK, will do. Meanwhile, can you pick up Patch 1, that is independent of
this patch.

regards
Suman

  reply	other threads:[~2015-02-13 16:13 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-09 21:21 [PATCH v3 0/2] couple of generic remoteproc enhancements Suman Anna
2015-01-09 21:21 ` [PATCH v3 1/2] remoteproc: use a flag to detect the presence of IOMMU Suman Anna
2015-03-12  9:04   ` Ohad Ben-Cohen
2015-03-13 23:35     ` Suman Anna
2015-01-09 21:21 ` [PATCH v3 2/2] remoteproc: add support to handle internal memories Suman Anna
2015-02-10 10:10   ` Ohad Ben-Cohen
2015-02-11 20:57     ` Tony Lindgren
2015-02-11 22:28       ` Suman Anna
2015-02-11 22:48         ` Tony Lindgren
2015-02-12  0:01           ` Suman Anna
2015-02-12  0:18             ` Tony Lindgren
2015-02-12  1:07               ` Suman Anna
2015-02-12  9:09       ` Ohad Ben-Cohen
2015-02-12 20:54         ` Suman Anna
2015-02-13  5:20           ` Ohad Ben-Cohen
2015-02-13 16:13             ` Suman Anna [this message]
2015-02-13 18:35               ` Tony Lindgren
2015-01-22 21:52 ` [PATCH v3 0/2] couple of generic remoteproc enhancements Suman Anna
2015-02-03 20:55   ` Suman Anna
2015-02-05 15:11     ` Ohad Ben-Cohen

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