• Helge Deller's avatar
    parisc: Check if secondary CPUs want own PDC calls · 0ed1fe4a
    Helge Deller authored
    The architecture specification says (for 64-bit systems): PDC is a per
    processor resource, and operating system software must be prepared to
    manage separate pointers to PDCE_PROC for each processor.  The address
    of PDCE_PROC for the monarch processor is stored in the Page Zero
    location MEM_PDC. The address of PDCE_PROC for each non-monarch
    processor is passed in gr26 when PDCE_RESET invokes OS_RENDEZ.
    
    Currently we still use one PDC for all CPUs, but in case we face a
    machine which is following the specification let's warn about it.
    Signed-off-by: default avatarHelge Deller <deller@gmx.de>
    0ed1fe4a
smp.c 9.51 KB