• Michael Ellerman's avatar
    [POWERPC] Fix large hash table allocation on Cell blades · 31bf1119
    Michael Ellerman authored
    My recent hack to allocate the hash table under 1GB on cell was poorly
    tested, *cough*. It turns out on blades with large amounts of memory we
    fail to allocate the hash table at all. This is because RTAS has been
    instantiated just below 768MB, and 0-x MB are used by the kernel,
    leaving no areas that are both large enough and also naturally-aligned.
    
    For the cell IOMMU hack the page tables must be under 2GB, so use that
    as the limit instead. This has been tested on real hardware and boots
    happily.
    Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
    31bf1119
hash_utils_64.c 27.6 KB