• Paul Burton's avatar
    MIPS: Malta: Register UP SMP ops if all else fails · ecafe3e9
    Paul Burton authored
    If we fail to register any real SMP implementations, fall back to
    registering the dummy UP implementation. Otherwise when we build an SMP
    kernel & run it on a system where the SMP implementations fail to probe
    (eg. QEMU) the kernel will perform a NULL dereference attempting to call
    mp_ops->smp_setup() from plat_smp_setup().
    
    Notably this fixes booting kernels with CPS SMP enabled on QEMU, which
    doesn't currently implement the CM, CPC or GIC.
    Signed-off-by: default avatarPaul Burton <paul.burton@imgtec.com>
    Cc: linux-mips@linux-mips.org
    Cc: Peter Hurley <peter@hurleysoftware.com>
    Cc: Rob Herring <robh@kernel.org>
    Cc: linux-kernel@vger.kernel.org
    Cc: Markos Chandras <markos.chandras@imgtec.com>
    Patchwork: https://patchwork.linux-mips.org/patch/11223/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    ecafe3e9
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