Jon Ringle wrote:
Hi,
I need to reserve a page of memory at a specific area of RAM that will
be used as a "shared memory" with another processor over PCI. How can I
ensure that the this area of RAM gets reseved so that the Linux's memory
management (kmalloc() and friends) don't use it?
Some things that I've considered are iotable_init() and ioremap().
However, I've seen these used for memory mapped IO devices which are
outside of the RAM memory. Can I use them for reseving RAM too?
I appreciate any advice in this regard.
Sounds to me like dma_alloc_coherent is what you want..
--
Robert Hancock Saskatoon, SK, Canada
To email, remove "nospam" from [email protected]
Home Page: http://www.roberthancock.com/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
