EXCEPTION_T_LOAD_SP  142 arch/openrisc/kernel/head.S #define EXCEPTION_T_LOAD_SP(reg)	l.mfspr reg,r0,SPR_SHADOW_GPR(1)
EXCEPTION_T_LOAD_SP  152 arch/openrisc/kernel/head.S #define EXCEPTION_T_LOAD_SP(reg)	l.lwz   reg,0x80(r0)