I think in the embedded system always use "mem=" parameter to boot kernel and reserve a continuous memory then provide for some device use as their private "buffer",like io-mem remap in the kernel space to use.
BRs Lin 2009/3/31 Peter Teoh <htmldevelo...@gmail.com>: > On Tue, Mar 31, 2009 at 11:11 AM, Peter Chen <hzpeterc...@gmail.com> wrote: >> Thank you, peter. >> Yes, graphical guys ask me the same questions, and the other device drivers >> which don't support scatter buffer also have this doubt. >> >> > > but i suspect it could be easily achieved through a patch to the > kernel, to keep statistic of the longest available contiguous physical > memory available. not sure myself....just a guess :-). but the > overhead of calculation/maintaining statistic has to be justified by > the benefits it bring in graphical card driver itself...... > > > > -- > Regards, > Peter Teoh > > -- > To unsubscribe from this list: send an email with > "unsubscribe kernelnewbies" to ecar...@nl.linux.org > Please read the FAQ at http://kernelnewbies.org/FAQ > > -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecar...@nl.linux.org Please read the FAQ at http://kernelnewbies.org/FAQ
