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