Hey, sorry for the late reply bud I got busy. My question is more focused on what other methods are used to replace this patch. Is this on obsolete patch and I can use kmalloc for this or are there other methods to allocate big chunks of memory for dma access. I don't want to use the patch because it looks like it is no longer mantained. Someone experience on this topic? greeting mosta On Wednesday 26 August 2009 16:44:13 you wrote: > Hi Sven... > > On Wed, Aug 26, 2009 at 5:40 PM, Sven-Maurice > > Althoff<mosta.me@xxxxxxxxxxxxxx> wrote: > > Hey everyone, > > > > I need help for a small fix to a device driver for a daq card The only > > driver available to me uses the bigphysarea patch, to allocate physical > > memory for the dma access. The problem is that I can't find a newer patch > > that work with the 2.6.24 Kernel. So my question is with what memory > > allocator function should I replace it? Is there a other memory allocator > > that replaced it. > > > > greetings mosta > > I check your mentioned bigphysarea patch at > http://lkml.indiana.edu/hypermail/linux/kernel/0702.2/2199.html (first > time I read about this patch). > > It seems that it uses alloc_bootmem_low_pages() for allocating some > number of pages during boot stage, and this function is still exist in > 2.6.30.5. The rest of the patch, to the best I read, rely in kmalloc > and kfree. > > So, overall, I think you can simply try to apply the patch (for > example, from the URL I pasted above). pay attention that i386 and > x86-64 now lives inside x886 directory, so you need slight adjustment > in the diff file. > > Good luck.... -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
