Andrea, I haven't tried this myself, but would it be possible to use the memmap command line parameter to reserve a chunk of memory that the kernel will not try to manage. I think this will bypass the MMU as I have seen that you can limit the kernel to using less memory and then use the DDR memory that the kernel is not managing without the MMU getting in the way.
Sincerely, Chase Maupin Software Applications Catalog DSP Products e-mail: [EMAIL PROTECTED] phone: (281) 274-3285 > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Andrea Gasparini > Sent: Thursday, November 06, 2008 6:06 AM > To: Albert Burbea > Cc: [email protected] > Subject: Re: physical addresses > > Albert Burbea spiffera, alle Thursday 06 November 2008 circa: > > what about mmapio? > > Uhm, are you talking about kernel side functions? In fact i've not > specified I'm trying a userspace way [1], but without results. (it > segfaults) > Perhaps I could try also with mmapio. (it's a little more tedious, but if > it works...) :P > > Thanks, bye! > > [1] http://www.lartmaker.nl/lartware/port/devmem2.c > -- > Andrea Gasparini > ---- ImaVis S.r.l. ---- > web: www.imavis.com > > _______________________________________________ > Davinci-linux-open-source mailing list > [email protected] > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
