From: Andrew Morton <akpm@digeo.com>
To: David Brownell <david-b@pacbell.net>
Cc: "Adam J. Richter" <adam@yggdrasil.com>,
James.Bottomley@steeleye.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] generic device DMA (dma_pool update)
Date: Tue, 31 Dec 2002 15:27:48 -0800 [thread overview]
Message-ID: <3E1227F4.E4B98632@digeo.com> (raw)
In-Reply-To: <3E1226FF.9010407@pacbell.net>
David Brownell wrote:
>
> void *mempool_alloc_td (int mem_flags, void *pool)
> {
> struct td *td;
> dma_addr_t dma;
>
> td = dma_pool_alloc (pool, mem_flags, &dma);
> if (!td)
> return td;
> td->td_dma = dma; /* feed to the hardware */
> ... plus other init
> return td;
> }
The existing mempool code can be used to implement this, I believe. The
pool->alloc callback is passed an opaque void *, and it returns
a void * which can point at any old composite caller-defined blob.
next prev parent reply other threads:[~2002-12-31 23:19 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-31 22:02 Adam J. Richter
2002-12-31 22:41 ` Andrew Morton
2002-12-31 23:23 ` David Brownell
2002-12-31 23:27 ` Andrew Morton [this message]
2002-12-31 23:44 ` David Brownell
2002-12-31 23:47 ` James Bottomley
2003-01-01 17:10 ` James Bottomley
2002-12-31 23:35 ` David Brownell
-- strict thread matches above, loose matches on Subject: below --
2003-01-02 22:07 Adam J. Richter
2003-01-03 0:20 ` Russell King
2003-01-03 4:50 ` David Brownell
2003-01-03 6:11 ` David Brownell
2003-01-03 6:46 ` David Brownell
2003-01-03 6:52 ` William Lee Irwin III
2003-01-02 17:04 Adam J. Richter
2003-01-02 4:13 Adam J. Richter
2003-01-02 16:41 ` James Bottomley
2003-01-02 18:26 ` David Brownell
2003-01-01 19:21 Adam J. Richter
2003-01-01 19:48 ` James Bottomley
2003-01-02 2:11 ` David Brownell
2003-01-01 0:02 Adam J. Richter
2002-12-31 23:38 Adam J. Richter
2002-12-27 21:40 [RFT][PATCH] generic device DMA implementation James Bottomley
2002-12-28 1:56 ` David Brownell
2002-12-30 23:11 ` [PATCH] generic device DMA (dma_pool update) David Brownell
2002-12-31 15:00 ` James Bottomley
2002-12-31 17:04 ` David Brownell
2002-12-31 17:23 ` James Bottomley
2002-12-31 18:11 ` David Brownell
2002-12-31 18:44 ` James Bottomley
2002-12-31 19:29 ` David Brownell
2002-12-31 19:50 ` James Bottomley
2002-12-31 21:17 ` David Brownell
2002-12-31 16:36 ` James Bottomley
2002-12-31 17:32 ` David Brownell
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