From: "Jörn Engel" <joern@wohnheim.fh-wedel.de>
To: Sachin P <sachinpc@gmail.com>
Cc: Linuxppc-embedded@ozlabs.org
Subject: Re: consistent_alloc() on PPC
Date: Wed, 19 Jan 2005 16:14:56 +0100 [thread overview]
Message-ID: <20050119151456.GA26711@wohnheim.fh-wedel.de> (raw)
In-Reply-To: <66164fbc0501190353265167b0@mail.gmail.com>
On Wed, 19 January 2005 17:23:42 +0530, Sachin P wrote:
>
> I am facing some problems porting my drivers to the PPC platform . Am
> currently using consistent_alloc() and consistent_free() to
> allocate/free (non-cached) DMA ble memory.
> Is there any function/patch/macro, equivalent to
> phy_to_virt()/virt_to_phy() for memory returned by consistent_alloc()?
Imo not. I ended up writing a private version of it, along these
lines:
static inline unsigned long private_io_to_bus(void *addr)
{
return iopa((unsigned long)addr) + offset;
}
Wouldn't hurt if you could generalize it somehow.
Jörn
--
Everything should be made as simple as possible, but not simpler.
-- Albert Einstein
next prev parent reply other threads:[~2005-01-19 15:14 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-19 11:53 consistent_alloc() on PPC Sachin P
2005-01-19 15:14 ` Jörn Engel [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-01-19 11:53 Sachin P
2005-01-19 14:04 ` Matt Porter
2005-01-19 14:10 ` Christoph Hellwig
2005-01-19 14:56 ` Matt Porter
2005-01-20 16:30 ` Sachin P
2005-01-20 18:16 ` Matt Porter
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