Re: dma memory mapping
Adam Lackorzynski <[email protected]>
| Newsgroups | gmane.comp.micro-kernel.l4.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi, On Thu Aug 16, 2012 at 17:36:07 -0700, Chen Tian wrote: > I'd like to allocate some physical memory for a device's DMA. Do I need to > use some special flags in l4_task_map? Having that memory non-cached is probably good to have, so adding L4_FPAGE_UNCACHEABLE << 4 as flags would do that. Adam -- Adam [email protected] Lackorzynski http://os.inf.tu-dresden.de/~adam/