• Michael Ellerman's avatar
    powerpc/64s: Replace CONFIG_PPC_STD_MMU_64 with CONFIG_PPC_BOOK3S_64 · 4e003747
    Michael Ellerman authored
    CONFIG_PPC_STD_MMU_64 indicates support for the "standard" powerpc MMU
    on 64-bit CPUs. The "standard" MMU refers to the hash page table MMU
    found in "server" processors, from IBM mainly.
    
    Currently CONFIG_PPC_STD_MMU_64 is == CONFIG_PPC_BOOK3S_64. While it's
    annoying to have two symbols that always have the same value, it's not
    quite annoying enough to bother removing one.
    
    However with the arrival of Power9, we now have the situation where
    CONFIG_PPC_STD_MMU_64 is enabled, but the kernel is running using the
    Radix MMU - *not* the "standard" MMU. So it is now actively confusing
    to use it, because it implies that code is disabled or inactive when
    the Radix MMU is in use, however that is not necessarily true.
    
    So s/CONFIG_PPC_STD_MMU_64/CONFIG_PPC_BOOK3S_64/, and do some minor
    formatting updates of some of the affected lines.
    
    This will be a pain for backports, but c'est la vie.
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    4e003747
lparcfg.c 19.2 KB