Re: doubt about DMA

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Dec 14, 2005 at 05:04:19PM +0530, Prabhat Hegde wrote:
> Hi friends,
> can any1 point me to a good linux memory management stuff. Actually i
> want to know the conversion of virtual to physical address and when u
> need to do it. I am seeking to do some dma from the host memory to an
> ethernet device. I have registered my own device data structures,
> while booting my device. i.e it seeks all the memory it needs at
> startup. later i put the data to the device specific data structures &
> ring a doorbell register later upon which the device picks up the
> data. This is my plan. But i am facing some problems during dma time.
> So can someone throw some light as to how to do this in a generic way
> so that later i can customise it?

Grab the book Linux Device Drivers, it describes how this memory
management stuff works. You may be able to read parts of it on the web
too, IIRC.

Have a nice day,
-- 
Martijn van Oosterhout   <kleptog@xxxxxxxxx>   http://svana.org/kleptog/
> Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a
> tool for doing 5% of the work and then sitting around waiting for someone
> else to do the other 95% so you can sue them.

Attachment: pgpAG8uzcOj0W.pgp
Description: PGP signature


[Index of Archives]     [Netdev]     [Ethernet Bridging]     [Linux 802.1Q VLAN]     [Linux Wireless]     [Kernel Newbies]     [Security]     [Linux for Hams]     [Netfilter]     [Git]     [Bugtraq]     [Yosemite News and Information]     [MIPS Linux]     [ARM Linux]     [Linux RAID]     [Linux PCI]     [Linux Admin]     [Samba]

  Powered by Linux