linux-kernel - Re: [PATCH 8/9] dspbridge: add map support for big buffers

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Message-ID: <AANLkTi=4YYvyHdL=F_FYQ4e5v-+K3RMZFngdfuKPQ-4L@mail.gmail.com>
Date:	Wed, 25 Aug 2010 09:05:49 +0300
From:	Felipe Contreras <felipe.contreras@...il.com>
To:	"Guzman Lugo, Fernando" <fernando.lugo@...com>
Cc:	"Kanigeri, Hari" <h-kanigeri2@...com>,
	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"ohad@...ery.com" <ohad@...ery.com>,
	"hiroshi.doyu@...ia.com" <hiroshi.doyu@...ia.com>,
	"ameya.palande@...ia.com" <ameya.palande@...ia.com>,
	"felipe.contreras@...ia.com" <felipe.contreras@...ia.com>
Subject: Re: [PATCH 8/9] dspbridge: add map support for big buffers

On Wed, Aug 25, 2010 at 12:55 AM, Guzman Lugo, Fernando
<fernando.lugo@...com> wrote:
>> However, from what I can see iovmm can be used instead of dmm
>> even if the switch to iommu is not yet there.
>
> Iovmm have a list of memory used (reserved, that is what dmm module
> does) and also maps the buffer, So we can not use iovmm without removing
> The mapping which is done inside dspbridge because it will conflic with
> The mapping doing inside iovmm module. So that means for using iovmm, the
> Mapping in dspbridge had to be removed in order to work properly.

Or the whole iovmm.c can be copied and just remove the mapping.

-- 
Felipe Contreras
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