Commits
Paul Mackerras committed f57333a7677
powerpc/powernv: Fix return value from power7_nap() et al. The power7_nap(), power7_sleep() and power7_winkle() functions are called from pnv_smp_cpu_kill_self(), which expects them to return the SRR1 value set by the hardware on wakeup, or 0 if no nap/sleep/winkle occurred. However, in the case where an interrupt needs to be replayed, the logic in power7_powersave_common (the common code for power7_nap et al.) doesn't set r3 to 0 in this case. Instead what we get as the return value is the selector for the type of power-saving mode requested (1, 2 or 3). In fact this should not affect the operation of pnv_smp_cpu_kill_self(), but it is better to get this correct, so this adds an instruction to set r3 to 0 in this case. Signed-off-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>