• Franck Bui-Huu's avatar
    [MIPS] FLATMEM: introduce PHYS_OFFSET. · 6f284a2c
    Franck Bui-Huu authored
    The old code was assuming that min_low_pfn was always 0. This
    means that platforms having a big hole at their memory start
    paid the price of wasting some memory for the allocation of
    unused entries in mem_map[].
    
    This patch prevents this waste.
    
    It introduces PHYS_OFFSET define which is the start of the
    physical memory and uses it wherever needed. Specially when
    converting physical/virtual addresses into virtual/physical
    ones.
    
    Currently all platforms defines PHYS_OFFSET to 0.
    Signed-off-by: default avatarFranck Bui-Huu <fbuihuu@gmail.com>
    Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    6f284a2c
io.h 18.9 KB