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
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
#ifndef S390_CIO_IOASM_H
#define S390_CIO_IOASM_H
#include "schid.h"
#include "chpid.h"
/*
* TPI info structure
*/
struct tpi_info {
struct subchannel_id schid;
__u32 intparm; /* interruption parameter */
__u32 adapter_IO : 1;
__u32 reserved2 : 1;
__u32 isc : 3;
__u32 reserved3 : 12;
__u32 int_type : 3;
__u32 reserved4 : 12;
} __attribute__ ((packed));
/*
* Some S390 specific IO instructions as inline
*/
static inline int stsch(struct subchannel_id schid,
volatile struct schib *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" stsch 0(%2)\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int stsch_err(struct subchannel_id schid,
volatile struct schib *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode = -EIO;
asm volatile(
" stsch 0(%2)\n"
"0: ipm %0\n"
" srl %0,28\n"
"1:\n"
EX_TABLE(0b,1b)
: "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int msch(struct subchannel_id schid,
volatile struct schib *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" msch 0(%2)\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int msch_err(struct subchannel_id schid,
volatile struct schib *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode = -EIO;
asm volatile(
" msch 0(%2)\n"
"0: ipm %0\n"
" srl %0,28\n"
"1:\n"
EX_TABLE(0b,1b)
: "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int tsch(struct subchannel_id schid,
volatile struct irb *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" tsch 0(%2)\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int tpi( volatile struct tpi_info *addr)
{
int ccode;
asm volatile(
" tpi 0(%1)\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int ssch(struct subchannel_id schid,
volatile struct orb *addr)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" ssch 0(%2)\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
return ccode;
}
static inline int rsch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" rsch\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
static inline int csch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" csch\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
static inline int hsch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" hsch\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
static inline int xsch(struct subchannel_id schid)
{
register struct subchannel_id reg1 asm ("1") = schid;
int ccode;
asm volatile(
" .insn rre,0xb2760000,%1,0\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
static inline int chsc(void *chsc_area)
{
typedef struct { char _[4096]; } addr_type;
int cc;
asm volatile(
" .insn rre,0xb25f0000,%2,0\n"
" ipm %0\n"
" srl %0,28\n"
: "=d" (cc), "=m" (*(addr_type *) chsc_area)
: "d" (chsc_area), "m" (*(addr_type *) chsc_area)
: "cc");
return cc;
}
static inline int rchp(struct chp_id chpid)
{
register struct chp_id reg1 asm ("1") = chpid;
int ccode;
asm volatile(
" lr 1,%1\n"
" rchp\n"
" ipm %0\n"
" srl %0,28"
: "=d" (ccode) : "d" (reg1) : "cc");
return ccode;
}
#endif
|
