• Helge Deller's avatar
    parisc: Add Huge Page and HUGETLBFS support · 736d2169
    Helge Deller authored
    This patch adds huge page support to allow userspace to allocate huge
    pages and to use hugetlbfs filesystem on 32- and 64-bit Linux kernels.
    A later patch will add kernel support to map kernel text and data on
    huge pages.
    
    The only requirement is, that the kernel needs to be compiled for a
    PA8X00 CPU (PA2.0 architecture). Older PA1.X CPUs do not support
    variable page sizes. 64bit Kernels are compiled for PA2.0 by default.
    
    Technically on parisc multiple physical huge pages may be needed to
    emulate standard 2MB huge pages.
    Signed-off-by: default avatarHelge Deller <deller@gmx.de>
    736d2169
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