• Wu Zhangjin's avatar
    MIPS: Loongson: Disallow 4kB pages · 315fe625
    Wu Zhangjin authored
    Currently, with PAGE_SIZE_4KB, the kernel for loongson will hang on:
    Kernel panic - not syncing: Attempted to kill init!
    The possible reason is the cache aliases problem:
    Loongson 2F has 64kb, 4 way L1 Cache, the way size is 16kb, which is bigger
    then 4kb. so, If using 4kb page size, there is cache aliases problem.
    To avoid this kind of problem, extra cache flushing.  The 2nd possible
    solution is 16kb page size which avoids cache aliases without the need for
    extra cache flushes.  So we disable 4kB pages until the aliasing issue is
    Signed-off-by: default avatarWu Zhangjin <wuzhangjin@gmail.com>
    Patchwork: http://patchwork.linux-mips.org/patch/736/
    Cc: linux-mips@linux-mips.org
    Cc: zhangfx@lemote.com
    Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Kconfig 51 KB