• Benjamin Herrenschmidt's avatar
    [PATCH] ppc64: support 64k pages · 3c726f8d
    Benjamin Herrenschmidt authored
    
    
    Adds a new CONFIG_PPC_64K_PAGES which, when enabled, changes the kernel
    base page size to 64K.  The resulting kernel still boots on any
    hardware.  On current machines with 4K pages support only, the kernel
    will maintain 16 "subpages" for each 64K page transparently.
    
    Note that while real 64K capable HW has been tested, the current patch
    will not enable it yet as such hardware is not released yet, and I'm
    still verifying with the firmware architects the proper to get the
    information from the newer hypervisors.
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
    3c726f8d