xref: /openbmc/linux/arch/s390/include/asm/nmi.h (revision 5d0e4d78)
1 /*
2  *   Machine check handler definitions
3  *
4  *    Copyright IBM Corp. 2000, 2009
5  *    Author(s): Ingo Adlung <adlung@de.ibm.com>,
6  *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
7  *		 Cornelia Huck <cornelia.huck@de.ibm.com>,
8  *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
9  */
10 
11 #ifndef _ASM_S390_NMI_H
12 #define _ASM_S390_NMI_H
13 
14 #include <linux/const.h>
15 #include <linux/types.h>
16 
17 #define MCIC_SUBCLASS_MASK	(1ULL<<63 | 1ULL<<62 | 1ULL<<61 | \
18 				1ULL<<59 | 1ULL<<58 | 1ULL<<56 | \
19 				1ULL<<55 | 1ULL<<54 | 1ULL<<53 | \
20 				1ULL<<52 | 1ULL<<47 | 1ULL<<46 | \
21 				1ULL<<45 | 1ULL<<44)
22 #define MCCK_CODE_SYSTEM_DAMAGE		_BITUL(63)
23 #define MCCK_CODE_EXT_DAMAGE		_BITUL(63 - 5)
24 #define MCCK_CODE_CP			_BITUL(63 - 9)
25 #define MCCK_CODE_CPU_TIMER_VALID	_BITUL(63 - 46)
26 #define MCCK_CODE_PSW_MWP_VALID		_BITUL(63 - 20)
27 #define MCCK_CODE_PSW_IA_VALID		_BITUL(63 - 23)
28 
29 #define MCCK_CR14_CR_PENDING_SUB_MASK	(1 << 28)
30 #define MCCK_CR14_RECOVERY_SUB_MASK	(1 << 27)
31 #define MCCK_CR14_DEGRAD_SUB_MASK	(1 << 26)
32 #define MCCK_CR14_EXT_DAMAGE_SUB_MASK	(1 << 25)
33 #define MCCK_CR14_WARN_SUB_MASK		(1 << 24)
34 
35 #ifndef __ASSEMBLY__
36 
37 union mci {
38 	unsigned long val;
39 	struct {
40 		u64 sd :  1; /* 00 system damage */
41 		u64 pd :  1; /* 01 instruction-processing damage */
42 		u64 sr :  1; /* 02 system recovery */
43 		u64    :  1; /* 03 */
44 		u64 cd :  1; /* 04 timing-facility damage */
45 		u64 ed :  1; /* 05 external damage */
46 		u64    :  1; /* 06 */
47 		u64 dg :  1; /* 07 degradation */
48 		u64 w  :  1; /* 08 warning pending */
49 		u64 cp :  1; /* 09 channel-report pending */
50 		u64 sp :  1; /* 10 service-processor damage */
51 		u64 ck :  1; /* 11 channel-subsystem damage */
52 		u64    :  2; /* 12-13 */
53 		u64 b  :  1; /* 14 backed up */
54 		u64    :  1; /* 15 */
55 		u64 se :  1; /* 16 storage error uncorrected */
56 		u64 sc :  1; /* 17 storage error corrected */
57 		u64 ke :  1; /* 18 storage-key error uncorrected */
58 		u64 ds :  1; /* 19 storage degradation */
59 		u64 wp :  1; /* 20 psw mwp validity */
60 		u64 ms :  1; /* 21 psw mask and key validity */
61 		u64 pm :  1; /* 22 psw program mask and cc validity */
62 		u64 ia :  1; /* 23 psw instruction address validity */
63 		u64 fa :  1; /* 24 failing storage address validity */
64 		u64 vr :  1; /* 25 vector register validity */
65 		u64 ec :  1; /* 26 external damage code validity */
66 		u64 fp :  1; /* 27 floating point register validity */
67 		u64 gr :  1; /* 28 general register validity */
68 		u64 cr :  1; /* 29 control register validity */
69 		u64    :  1; /* 30 */
70 		u64 st :  1; /* 31 storage logical validity */
71 		u64 ie :  1; /* 32 indirect storage error */
72 		u64 ar :  1; /* 33 access register validity */
73 		u64 da :  1; /* 34 delayed access exception */
74 		u64    :  1; /* 35 */
75 		u64 gs :  1; /* 36 guarded storage registers */
76 		u64    :  5; /* 37-41 */
77 		u64 pr :  1; /* 42 tod programmable register validity */
78 		u64 fc :  1; /* 43 fp control register validity */
79 		u64 ap :  1; /* 44 ancillary report */
80 		u64    :  1; /* 45 */
81 		u64 ct :  1; /* 46 cpu timer validity */
82 		u64 cc :  1; /* 47 clock comparator validity */
83 		u64    : 16; /* 47-63 */
84 	};
85 };
86 
87 #define MCESA_ORIGIN_MASK	(~0x3ffUL)
88 #define MCESA_LC_MASK		(0xfUL)
89 
90 struct mcesa {
91 	u8 vector_save_area[1024];
92 	u8 guarded_storage_save_area[32];
93 };
94 
95 struct pt_regs;
96 
97 extern void s390_handle_mcck(void);
98 extern void s390_do_machine_check(struct pt_regs *regs);
99 
100 #endif /* __ASSEMBLY__ */
101 #endif /* _ASM_S390_NMI_H */
102