| Date | Fri, 17 Aug 2012 10:21:06 +0100 | From | Catalin Marinas <> | Subject | Re: [PATCH v2 04/31] arm64: MMU definitions |
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On Fri, Aug 17, 2012 at 10:04:52AM +0100, Tony Lindgren wrote: > * Catalin Marinas <catalin.marinas@arm.com> [120814 10:57]: > > The virtual memory layout is described in > > Documentation/arm64/memory.txt. This patch adds the MMU definitions for > > the 4KB and 64KB translation table configurations. The SECTION_SIZE is > > 2MB with 4KB page and 512MB with 64KB page configuration. > > > > PHYS_OFFSET is calculated at run-time and stored in a variable (no > > run-time code patching at this stage). > > Care to clarify this part a bit? Is the memory standardized somehow > now and not needed? Or do we still need to add that for various SoCs > later on?
The memory is not standardised but we have FDT to fully specify it. The PHYS_OFFSET does not need to be defined, it is automatically detected at boo-time based on the kernel load address and stored in a variable to be used later.
> Other than that: > > Acked-by: Tony Lindgren <tony@atomide.com>
Thanks.
-- Catalin
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