Re: [PATCH v6] POWERPC: Allow 32-bit hashed pgtable code to support 36-bit physical

On Sep 24, 2008, at 11:01 AM, Becky Bruce wrote:

This rearranges a bit of code, and adds support for
36-bit physical addressing for configs that use a
hashed page table.  The 36b physical support is not
enabled by default on any config - it must be
explicitly enabled via the config system.

This patch *only* expands the page table code to accomodate
large physical addresses on 32-bit systems and enables the
PHYS_64BIT config option for 86xx.  It does *not*
allow you to boot a board with more than about 3.5GB of
RAM - for that, SWIOTLB support is also required (and
coming soon).

Signed-off-by: Becky Bruce <redacted>
---
This patch depends on Kumar's recent patch
[PATCH v9 2/4] powerpc: Fixes for CONFIG_PTE_64BIT for SMP support -
we've both made modifications to set_pte_at.

applied to git.kernel.org:/pub/scm/linux/kernel/git/galak/powerpc.git mmu

- k