lkml.org 
[lkml]   [2001]   [Jun]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Allocating non-contigious memory
Hi Alan.

>> What is the Right Way[tm] as of 2.4.6 to allocate 16Mb as 4K
>> pages and get the pci bus address for each page? Bonus points
>> is they're virtually contiguous, but that's not necessary.
>> IIRC, the old vmalloc-then-walk-the-pagetables trick is
>> considered out-of-bounds nowadays.

> If you want it virtually contiguous then copy the code from bttv
> that out-of-bounds or otherwise is now found in about 8 drivers
> in the kernel.

Would it be useful to turn that particular code into a subroutine that
is called from each driver, or would that cause other problems?

Best wishes from Riley.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 12:55    [W:0.382 / U:0.076 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site