• Paul Burton's avatar
    MIPS: Abstract CPU core & VP(E) ID access through accessor functions · f875a832
    Paul Burton authored
    We currently have fields in struct cpuinfo_mips for the core & VP(E) ID
    of a particular CPU, and various pieces of code directly access those
    fields. This patch abstracts such access by introducing accessor
    functions cpu_core(), cpu_set_core(), cpu_vpe_id() & cpu_set_vpe_id()
    and having code that needs to access these values call those functions
    rather than directly accessing the struct cpuinfo_mips fields. This
    prepares us for changes to the way in which those values are stored in
    later patches.
    
    The cpu_vpe_id() function is introduced even though we already had a
    cpu_vpe_id() macro for a couple of reasons:
    
      1) It's more consistent with the core, and future cluster, accessors.
    
      2) It ensures a sensible return type without explicit casts.
    
      3) It's generally preferable to use functions rather than macros.
    Signed-off-by: default avatarPaul Burton <paul.burton@imgtec.com>
    Cc: linux-mips@linux-mips.org
    Patchwork: https://patchwork.linux-mips.org/patch/17009/Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
    f875a832
smp.c 24.9 KB