• Linus Torvalds's avatar
    i387: Split up <asm/i387.h> into exported and internal interfaces · 1361b83a
    Linus Torvalds authored
    While various modules include <asm/i387.h> to get access to things we
    actually *intend* for them to use, most of that header file was really
    pretty low-level internal stuff that we really don't want to expose to
    others.
    
    So split the header file into two: the small exported interfaces remain
    in <asm/i387.h>, while the internal definitions that are only used by
    core architecture code are now in <asm/fpu-internal.h>.
    
    The guiding principle for this was to expose functions that we export to
    modules, and leave them in <asm/i387.h>, while stuff that is used by
    task switching or was marked GPL-only is in <asm/fpu-internal.h>.
    
    The fpu-internal.h file could be further split up too, especially since
    arch/x86/kvm/ uses some of the remaining stuff for its module.  But that
    kvm usage should probably be abstracted out a bit, and at least now the
    internal FPU accessor functions are much more contained.  Even if it
    isn't perhaps as contained as it _could_ be.
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    Link: http://lkml.kernel.org/r/alpine.LFD.2.02.1202211340330.5354@i5.linux-foundation.orgSigned-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
    1361b83a
process_64.c 15.6 KB