I have read IO-mapping.txt, reviewed the linux-kernel archive, and
skimmed recent comp.os.linux.development.system articles. The
IO-mapping.txt file seems to imply that I may not be able to do
what I want in a portable way.
The PCI device I have decodes a single 16MB memory space. I need
to be able to map this space into the user space so that users can
access it through pointers. The old driver supports both Intel
and Alpha architectures; the new driver must support both as well.
The older 2.0.x driver I am porting makes use of the remap_page_range()
function. Where can I find a description of this function?
(beyond what is in mm.h and memory.c)
The older driver will not compile due to an assignment to the
vm_inode field of the vm_area_struct structure. This field no
longer exists in 2.2.x. What is the relationship between the
file->f_dentry->d_inode and the vm_area_struct structure?
Thanks,
Scott
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Scott C. Karlin Princeton University
Graduate Student Department of Computer Science
Voice: (609) 258-5386 35 Olden Street
Email: scott@cs.princeton.edu Princeton, NJ 08544-2087
WWW: http://www.cs.princeton.edu/~scott
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