* High Memory question
@ 2002-11-16 0:18 Mehdi Hashemian
2002-11-16 22:47 ` Martin J. Bligh
0 siblings, 1 reply; 2+ messages in thread
From: Mehdi Hashemian @ 2002-11-16 0:18 UTC (permalink / raw)
To: linux-kernel
Hello,
Going through different parts of Kernel, I am trying to figure out if I need
to change /page.h/__PAGE_OFFSET to some smaller value when compiling with
CONFIG_HIGHMEM4G option to support more than 1G physical memory. Other than
that, I can not figure out how virtual address for vmalloc and ioremap are
going to fit above logical addresses.
Any comment appreciated!
Mehdi
_________________________________________________________________
Add photos to your e-mail with MSN 8. Get 2 months FREE*.
http://join.msn.com/?page=features/featuredemail
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: High Memory question
2002-11-16 0:18 High Memory question Mehdi Hashemian
@ 2002-11-16 22:47 ` Martin J. Bligh
0 siblings, 0 replies; 2+ messages in thread
From: Martin J. Bligh @ 2002-11-16 22:47 UTC (permalink / raw)
To: Mehdi Hashemian, linux-kernel
> Going through different parts of Kernel, I am trying to figure out if I need to change /page.h/__PAGE_OFFSET to some smaller value when compiling with CONFIG_HIGHMEM4G option to support more than 1G physical memory.
No.
> Other than that, I can not figure out how virtual address for vmalloc and ioremap are going to fit above logical addresses.
By default it'll be the top 128Mb of RAM. Phys addrs are not mapped
1-1 onto virtual if you have highmem any more.
M.
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2002-11-16 22:42 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-11-16 0:18 High Memory question Mehdi Hashemian
2002-11-16 22:47 ` Martin J. Bligh
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®