* remap_page_range() beyond 4GB
@ 2002-10-04 13:42 sreekanth reddy
2002-10-04 15:03 ` Benjamin LaHaise
0 siblings, 1 reply; 3+ messages in thread
From: sreekanth reddy @ 2002-10-04 13:42 UTC (permalink / raw)
To: linux-mm
How can I "remap_page_range()" for physical addresses
beyond 4GB ? . remap_page_range()takes a 32 bit
(unsigned long) value which cannot address > 4GB
physical memory.
Thanks,
Sreekanth Reddy
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* Re: remap_page_range() beyond 4GB
2002-10-04 13:42 remap_page_range() beyond 4GB sreekanth reddy
@ 2002-10-04 15:03 ` Benjamin LaHaise
2002-10-04 15:23 ` sreekanth reddy
0 siblings, 1 reply; 3+ messages in thread
From: Benjamin LaHaise @ 2002-10-04 15:03 UTC (permalink / raw)
To: sreekanth reddy; +Cc: linux-mm
On Fri, Oct 04, 2002 at 06:42:59AM -0700, sreekanth reddy wrote:
> How can I "remap_page_range()" for physical addresses
> beyond 4GB ? . remap_page_range()takes a 32 bit
> (unsigned long) value which cannot address > 4GB
> physical memory.
What are you using remap_page_range() on? It should never be used on
RAM.
-ben
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: remap_page_range() beyond 4GB
2002-10-04 15:03 ` Benjamin LaHaise
@ 2002-10-04 15:23 ` sreekanth reddy
0 siblings, 0 replies; 3+ messages in thread
From: sreekanth reddy @ 2002-10-04 15:23 UTC (permalink / raw)
To: Benjamin LaHaise; +Cc: linux-mm
ben..
I want to map the contiguous physical pages (>4GB RAM)
that I've allocated into user space. I've also looked
into kmap(), kmap_high() that return kernel virtual
addresses k(addr)but how do I map kaddr into user
address space ? Thanks..
Sreekanth Reddy
--- Benjamin LaHaise <bcrl@redhat.com> wrote:
> On Fri, Oct 04, 2002 at 06:42:59AM -0700, sreekanth
> reddy wrote:
> > How can I "remap_page_range()" for physical
> addresses
> > beyond 4GB ? . remap_page_range()takes a 32 bit
> > (unsigned long) value which cannot address > 4GB
> > physical memory.
>
> What are you using remap_page_range() on? It should
> never be used on
> RAM.
>
> -ben
> --
> To unsubscribe, send a message with 'unsubscribe
> linux-mm' in
> the body to majordomo@kvack.org. For more info on
> Linux MM,
> see: http://www.linux-mm.org/
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2002-10-04 13:42 remap_page_range() beyond 4GB sreekanth reddy
2002-10-04 15:03 ` Benjamin LaHaise
2002-10-04 15:23 ` sreekanth reddy
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