/* On PPC processors that support the the Signal Processing Extension
(SPE) APU, the general-purpose registers are 64 bits long.
- However, the ordinary Linux PTRACE_PEEKUSR / PTRACE_POKEUSR /
- PT_READ_U / PT_WRITE_U ptrace calls only access the lower half of
+ However, the ordinary Linux kernel PTRACE_PEEKUSR / PTRACE_POKEUSR
+ / PT_READ_U / PT_WRITE_U ptrace calls only access the lower half of
each register, to allow them to behave the same way they do on
non-SPE systems. There's a separate pair of calls,
PTRACE_GETEVRREGS / PTRACE_SETEVRREGS, that read and write the top