DMA Memory

DMA Memory


[ Follow Ups ] [ Post Followups ] [ FAQ ]
[ Back to Messages ]

Posted by Dave Partington on January 18, 2002 at 06:32:54:

I am desinging an embedded product using Linux. I need to use bus master DMA, but don't want to deal with scatter gather. I understand you can start the kernel with mem=32MB (for example). If I have 128MB in my system and start with mem=32MB is the memory between 32MB and 128MB mapped as linear physical memory? Can I still access this from within Linux programs using pointers ?

Thanks in advance




Follow Ups:


Post a Followup

Please note:
  • Messages must be on the topic of this forum!
  • No posting of requests for cracks, codes, serials, or warez!
  • No posting of illegal software or links to such sites!
  • No use of profanity or inappropriate or offensive language!
  • Spamming is not allowed!
  • We track the IP addresses of forum abusers!
  • Abuse of this forum will be reported to your ISP!
Name:
E-Mail (optional):
please note: your e-mail address will be visible in your message.

Subject:

Comments:

Optional Link URL:
Link Title:
Optional Image URL: