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Old 08-11-2009, 01:17 AM   #1
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Registered: Jul 2005
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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?



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