Blame view

kernel/linux-rt-4.4.41/arch/s390/include/asm/sigp.h 1.5 KB
5113f6f70   김현기   kernel add
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
  #ifndef __S390_ASM_SIGP_H
  #define __S390_ASM_SIGP_H
  
  /* SIGP order codes */
  #define SIGP_SENSE		      1
  #define SIGP_EXTERNAL_CALL	      2
  #define SIGP_EMERGENCY_SIGNAL	      3
  #define SIGP_START		      4
  #define SIGP_STOP		      5
  #define SIGP_RESTART		      6
  #define SIGP_STOP_AND_STORE_STATUS    9
  #define SIGP_INITIAL_CPU_RESET	     11
  #define SIGP_CPU_RESET		     12
  #define SIGP_SET_PREFIX		     13
  #define SIGP_STORE_STATUS_AT_ADDRESS 14
  #define SIGP_SET_ARCHITECTURE	     18
  #define SIGP_COND_EMERGENCY_SIGNAL   19
  #define SIGP_SENSE_RUNNING	     21
  #define SIGP_SET_MULTI_THREADING     22
  #define SIGP_STORE_ADDITIONAL_STATUS 23
  
  /* SIGP condition codes */
  #define SIGP_CC_ORDER_CODE_ACCEPTED 0
  #define SIGP_CC_STATUS_STORED	    1
  #define SIGP_CC_BUSY		    2
  #define SIGP_CC_NOT_OPERATIONAL	    3
  
  /* SIGP cpu status bits */
  
  #define SIGP_STATUS_CHECK_STOP		0x00000010UL
  #define SIGP_STATUS_STOPPED		0x00000040UL
  #define SIGP_STATUS_EXT_CALL_PENDING	0x00000080UL
  #define SIGP_STATUS_INVALID_PARAMETER	0x00000100UL
  #define SIGP_STATUS_INCORRECT_STATE	0x00000200UL
  #define SIGP_STATUS_NOT_RUNNING		0x00000400UL
  
  #ifndef __ASSEMBLY__
  
  static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,
  			      u32 *status)
  {
  	register unsigned long reg1 asm ("1") = parm;
  	int cc;
  
  	asm volatile(
  		"	sigp	%1,%2,0(%3)
  "
  		"	ipm	%0
  "
  		"	srl	%0,28
  "
  		: "=d" (cc), "+d" (reg1) : "d" (addr), "a" (order) : "cc");
  	if (status && cc == 1)
  		*status = reg1;
  	return cc;
  }
  
  #endif /* __ASSEMBLY__ */
  
  #endif /* __S390_ASM_SIGP_H */