• Russell Currey's avatar
    powerpc/swsusp: Only use tlbie in POWER4 mode · e3824e42
    Russell Currey authored
    If CONFIG_HIBERNATION and CONFIG_PPC_BOOK3S_64 are set, code in
    arch/powerpc/kernel/swsusp_amd64.S which uses the tlbia macro is enabled.
    tlbia in turn uses tlbie, an instruction which takes more than one
    operand in newer versions of POWER.  As such, the kernel fails to build
    due to the assembler complaining about missing operands.
    
    This can be worked around by assembling the instruction as in POWER4.
    This fixes the build breakage caused by enabling CONFIG_HIBERNATION.
    Hibernation is currently only tested on G5 PowerMacs, which should be
    unaffected by this change.  For other platforms it may now build,
    whether or not it works is a different story.
    Signed-off-by: default avatarRussell Currey <ruscur@russell.cc>
    Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
    e3824e42
ppc_asm.h 20.2 KB