From: Linus Walleij <linus.ml.walleij@gmail.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Russell King - ARM Linux <linux@arm.linux.org.uk>,
Linus WALLEIJ <linus.walleij@stericsson.com>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
Grant Likely <grant.likely@secretlab.ca>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
STEricsson_nomadik_linux <STEricsson_nomadik_linux@list.st.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 00/11] ARM: PrimeCell DMA Interface v5
Date: Sun, 2 May 2010 01:48:34 +0200 [thread overview]
Message-ID: <u2q63386a3d1005011648k5fa29ae9y9e03d3c94594902b@mail.gmail.com> (raw)
In-Reply-To: <z2ye9c3a7c21005011628r7c0c2b5bq36126db83d3ea5e3@mail.gmail.com>
2010/5/2 Dan Williams <dan.j.williams@intel.com>:
> On Sat, May 1, 2010 at 4:04 PM, Linus Walleij
>> When the driver issues a request to perform a DMA transfer, it will pull
>> out a physical channel and use that, then return it. If there is too
>> much combat about the physical channels, you configure out DMA
>> for the least wanted PrimeCells.
>>
>
> Could you simulate this by publishing more struct dma_chans than are
> physically present, and then handle the muxing internal to the driver?
> Or am I misunderstanding the usage model?
Yes exactly that way. What I had in mind atleast.
Yours,
Linus Walleij
next prev parent reply other threads:[~2010-05-01 23:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-07 23:12 [PATCH 00/11] ARM: PrimeCell DMA Interface v5 Linus Walleij
2010-04-07 23:45 ` Dan Williams
2010-04-08 6:35 ` Linus WALLEIJ
2010-04-11 14:13 ` Linus Walleij
2010-04-12 19:23 ` Russell King - ARM Linux
2010-04-15 1:15 ` Dan Williams
2010-04-17 4:58 ` Linus Walleij
2010-04-22 11:00 ` Russell King - ARM Linux
2010-04-30 18:30 ` Linus Walleij
2010-05-01 22:00 ` Dan Williams
2010-05-01 22:27 ` Linus Walleij
2010-05-01 22:44 ` Russell King - ARM Linux
2010-05-01 23:04 ` Linus Walleij
2010-05-01 23:28 ` Russell King - ARM Linux
2010-05-02 0:21 ` Linus Walleij
2010-05-02 8:18 ` Russell King - ARM Linux
2010-05-04 13:05 ` Linus WALLEIJ
2010-05-01 23:28 ` Dan Williams
2010-05-01 23:48 ` Linus Walleij [this message]
2010-05-01 23:25 ` Dan Williams
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