From: "Grant Likely" <grant.likely@secretlab.ca>
To: "Mohammad Sadegh Sadri" <mamsadegh@hotmail.com>
Cc: Linux PPC Linux PPC <linuxppc-embedded@ozlabs.org>
Subject: Re: 2.6 Kernel , Xilinx Virtex and PPC 405 On chip memory controllers ( DSOCM and ISOCM )
Date: Tue, 24 Apr 2007 07:55:48 -0600 [thread overview]
Message-ID: <528646bc0704240655n6c80f2ffnc8f0c328149b3c15@mail.gmail.com> (raw)
In-Reply-To: <BAY115-W4BC24E5FE6C3B6EB88C72B24A0@phx.gbl>
On 4/24/07, Mohammad Sadegh Sadri <mamsadegh@hotmail.com> wrote:
>
> suppose that in my base system I have included 8kbytes of memory for DS OCM and 8K for IS OCM,
> I have generated the proper xparameters.h and copied it into kernel
>
> Now I want to know if kernel will use this portion of memory during it's operation?
> Does this increase performance?
No, it won't use that memory as general purpose RAM. You can make use
of it in device drivers (ie. for DMA space), but you'll need to write
the code to support it.
Cheers,
g.
--
Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195
next prev parent reply other threads:[~2007-04-24 13:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-24 12:52 2.6 Kernel , Xilinx Virtex and PPC 405 On chip memory controllers ( DSOCM and ISOCM ) Mohammad Sadegh Sadri
2007-04-24 13:55 ` Grant Likely [this message]
-- strict thread matches above, loose matches on Subject: below --
2007-04-24 14:52 Mohammad Sadegh Sadri
2007-04-24 14:59 ` Grant Likely
2007-04-24 15:37 Mohammad Sadegh Sadri
2007-04-24 17:43 ` Grant Likely
2007-04-25 19:37 ` jozsef imrek
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