1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __S390_ASM_SIGP_H 3 #define __S390_ASM_SIGP_H 4 5 /* SIGP order codes */ 6 #define SIGP_SENSE 1 7 #define SIGP_EXTERNAL_CALL 2 8 #define SIGP_EMERGENCY_SIGNAL 3 9 #define SIGP_START 4 10 #define SIGP_STOP 5 11 #define SIGP_RESTART 6 12 #define SIGP_STOP_AND_STORE_STATUS 9 13 #define SIGP_INITIAL_CPU_RESET 11 14 #define SIGP_CPU_RESET 12 15 #define SIGP_SET_PREFIX 13 16 #define SIGP_STORE_STATUS_AT_ADDRESS 14 17 #define SIGP_SET_ARCHITECTURE 18 18 #define SIGP_COND_EMERGENCY_SIGNAL 19 19 #define SIGP_SENSE_RUNNING 21 20 #define SIGP_SET_MULTI_THREADING 22 21 #define SIGP_STORE_ADDITIONAL_STATUS 23 22 23 /* SIGP condition codes */ 24 #define SIGP_CC_ORDER_CODE_ACCEPTED 0 25 #define SIGP_CC_STATUS_STORED 1 26 #define SIGP_CC_BUSY 2 27 #define SIGP_CC_NOT_OPERATIONAL 3 28 29 /* SIGP cpu status bits */ 30 31 #define SIGP_STATUS_INVALID_ORDER 0x00000002UL 32 #define SIGP_STATUS_CHECK_STOP 0x00000010UL 33 #define SIGP_STATUS_STOPPED 0x00000040UL 34 #define SIGP_STATUS_EXT_CALL_PENDING 0x00000080UL 35 #define SIGP_STATUS_INVALID_PARAMETER 0x00000100UL 36 #define SIGP_STATUS_INCORRECT_STATE 0x00000200UL 37 #define SIGP_STATUS_NOT_RUNNING 0x00000400UL 38 39 #ifndef __ASSEMBLY__ 40 41 static inline int ____pcpu_sigp(u16 addr, u8 order, unsigned long parm, 42 u32 *status) 43 { 44 register unsigned long reg1 asm ("1") = parm; 45 int cc; 46 47 asm volatile( 48 " sigp %1,%2,0(%3)\n" 49 " ipm %0\n" 50 " srl %0,28\n" 51 : "=d" (cc), "+d" (reg1) : "d" (addr), "a" (order) : "cc"); 52 *status = reg1; 53 return cc; 54 } 55 56 static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm, 57 u32 *status) 58 { 59 u32 _status; 60 int cc; 61 62 cc = ____pcpu_sigp(addr, order, parm, &_status); 63 if (status && cc == SIGP_CC_STATUS_STORED) 64 *status = _status; 65 return cc; 66 } 67 68 #endif /* __ASSEMBLY__ */ 69 70 #endif /* __S390_ASM_SIGP_H */ 71