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From: Pantelis Antoniou <pantelis.antoniou@gmail.com>
Reply-To: pantelis.antoniou@gmail.com
To: linuxppc-embedded@ozlabs.org
Subject: Re: [RFC] genalloc != generic DEVICE memory allocator
Date: Thu, 22 Dec 2005 18:09:52 +0200
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Cc: Andrey Volkov <avolkov@varma-el.com>,
       Pantelis Antoniou <panto@intracom.gr>, Andrew Morton <akpm@osdl.org>,
       jes@trained-monkey.org, linux-kernel@vger.kernel.org
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>

[snip]

> I'm sure lib/ will be appropriate place. and something like
> "DON'T TRY REINVENT WHEEL, TRY FIX EXISTS" in documentation/ :).
> 
> Now couple word about rheap: I understand why you are use static
> alignment in allocator, but its very specialized for CPM. IMO, align
> must be a param of xx_alloc. For ex: device may demand alignment by
> 8 bytes, which ok until... you are try map this memory to the user
> space (don't shoot at me, remember about framebuffer & co).
>

It is trivial to align to a given alignment in a call. Please search
the archives since this was needed for CPM2 and I've committed a patch.

As for mapping user space, since rheap only deals with addresses and never
touches the memory it's supposed to control, you can do pretty much everything.

I still don't understand what are you trying to do however.

Mind explaining?
 
> -- 
> Regards
> Andrey Volkov
>

Regards

Pantelis
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