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_CPU_RESET		     12
14#define SIGP_SET_PREFIX		     13
15#define SIGP_STORE_STATUS_AT_ADDRESS 14
16#define SIGP_SET_ARCHITECTURE	     18
17#define SIGP_COND_EMERGENCY_SIGNAL   19
18#define SIGP_SENSE_RUNNING	     21
19#define SIGP_SET_MULTI_THREADING     22
20#define SIGP_STORE_ADDITIONAL_STATUS 23
21
22/* SIGP condition codes */
23#define SIGP_CC_ORDER_CODE_ACCEPTED 0
24#define SIGP_CC_STATUS_STORED	    1
25#define SIGP_CC_BUSY		    2
26#define SIGP_CC_NOT_OPERATIONAL	    3
27
28/* SIGP cpu status bits */
29
30#define SIGP_STATUS_CHECK_STOP		0x00000010UL
31#define SIGP_STATUS_STOPPED		0x00000040UL
32#define SIGP_STATUS_EXT_CALL_PENDING	0x00000080UL
33#define SIGP_STATUS_INVALID_PARAMETER	0x00000100UL
34#define SIGP_STATUS_INCORRECT_STATE	0x00000200UL
35#define SIGP_STATUS_NOT_RUNNING		0x00000400UL
36
37#ifndef __ASSEMBLY__
38
39static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,
40			      u32 *status)
41{
42	register unsigned long reg1 asm ("1") = parm;
43	int cc;
44
45	asm volatile(
46		"	sigp	%1,%2,0(%3)\n"
47		"	ipm	%0\n"
48		"	srl	%0,28\n"
49		: "=d" (cc), "+d" (reg1) : "d" (addr), "a" (order) : "cc");
50	if (status && cc == 1)
51		*status = reg1;
52	return cc;
53}
54
55#endif /* __ASSEMBLY__ */
56
57#endif /* __S390_ASM_SIGP_H */
58