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| Author |
Message |
| Sachin pandhare... |
 Posted: Mon Aug 10, 2009 7:22 pm |
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Guest
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hi,
In my system I have defined following system map using mem directive.
--------------------------------------------------------------------
0x0000 0000 96MB Start Linux
0x05FF FFFF End Linux
--------------------------------------------------------------------
0x0600 0000 32MB Start Reserved memory Hole
0x07FF FFFF End Reserved memory Hole
--------------------------------------------------------------------
0x0800 0000 128MB Start Linux
0x0FFF FFFF End Linux
--------------------------------------------------------------------
We have created the “Reserved memory Hole” using mem directive in
Linux. So Linux kernel is “not aware” of this reserved memory.
What will be the configuration state (cacheable/bufferable) of this
memory?
if we now call ioremap_nocache on this reserved memory chunk. it will
be configured as non-cacheable memory but will it be bufferable or
not?
thanks,
Sachin |
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