• Becky Bruce's avatar
    POWERPC: Allow 32-bit hashed pgtable code to support 36-bit physical · 4ee7084e
    Becky Bruce authored
    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: default avatarBecky Bruce <becky.bruce@freescale.com>
    Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
    4ee7084e
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