* 36-bit phys & 64-bit pte support
@ 2005-03-30 17:58 Kumar Gala
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From: Kumar Gala @ 2005-03-30 17:58 UTC (permalink / raw)
To: Matt Porter; +Cc: Linux PPC Embedded list
Matt,
It looks like you introduced two config options at one point, however
they dont seem to be used consitently today. I wanted to clarify the
meaning that I'm going to try and go forward with:
CONFIG_PTE_64BIT - we have a 64-bit PTE
CONFIG_PHYS_64BIT - we have larger than 32-bit physical addresses
Its feasible to have support for CONFIG_PTE_64BIT while only supporting
32-bit phys. The intent would be if you needed more flags than you
could handle in the 12 LSBs of the pte.
CONFIG_PHYS_64BIT will only effect things like ioremap, phys_addr_t,
etc.
Do you agree with this interpretation?
- kumar
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2005-03-30 17:58 36-bit phys & 64-bit pte support Kumar Gala
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