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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-s390/] [sigp.h] - Blame information for rev 1765

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/*
 *  include/asm-s390/sigp.h
 *
 *  S390 version
 *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
 *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
 *               Martin Schwidefsky (schwidefsky@de.ibm.com)
 *
 *  sigp.h by D.J. Barrow (c) IBM 1999
 *  contains routines / structures for signalling other S/390 processors in an
 *  SMP configuration.
 */
 
#ifndef __SIGP__
#define __SIGP__
 
#include <asm/ptrace.h>
#include <asm/atomic.h>
 
/* get real cpu address from logical cpu number */
extern volatile int __cpu_logical_map[];
 
typedef enum
{
        sigp_unassigned=0x0,
        sigp_sense,
        sigp_external_call,
        sigp_emergency_signal,
        sigp_start,
        sigp_stop,
        sigp_restart,
        sigp_unassigned1,
        sigp_unassigned2,
        sigp_stop_and_store_status,
        sigp_unassigned3,
        sigp_initial_cpu_reset,
        sigp_cpu_reset,
        sigp_set_prefix,
        sigp_store_status_at_address,
        sigp_store_extended_status_at_address
} sigp_order_code;
 
typedef __u32 sigp_status_word;
 
typedef enum
{
        sigp_order_code_accepted=0,
        sigp_status_stored,
        sigp_busy,
        sigp_not_operational
} sigp_ccode;
 
 
/*
 * Definitions for the external call
 */
 
/* 'Bit' signals, asynchronous */
typedef enum
{
        ec_schedule=0,
        ec_call_function,
        ec_bit_last
} ec_bit_sig;
 
/*
 * Signal processor
 */
extern __inline__ sigp_ccode
signal_processor(__u16 cpu_addr, sigp_order_code order_code)
{
        sigp_ccode ccode;
 
        __asm__ __volatile__(
                "    sr     1,1\n"        /* parameter=0 in gpr 1 */
                "    sigp   1,%1,0(%2)\n"
                "    ipm    %0\n"
                "    srl    %0,28\n"
                : "=d" (ccode)
                : "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)
                : "cc" , "memory", "1" );
        return ccode;
}
 
/*
 * Signal processor with parameter
 */
extern __inline__ sigp_ccode
signal_processor_p(__u32 parameter,__u16 cpu_addr,sigp_order_code order_code)
{
        sigp_ccode ccode;
 
        __asm__ __volatile__(
                "    lr     1,%1\n"       /* parameter in gpr 1 */
                "    sigp   1,%2,0(%3)\n"
                "    ipm    %0\n"
                "    srl    %0,28\n"
                : "=d" (ccode)
                : "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
                  "a" (order_code)
                : "cc" , "memory", "1" );
        return ccode;
}
 
/*
 * Signal processor with parameter and return status
 */
extern __inline__ sigp_ccode
signal_processor_ps(__u32 *statusptr, __u32 parameter,
                    __u16 cpu_addr, sigp_order_code order_code)
{
        sigp_ccode ccode;
 
        __asm__ __volatile__(
                "    sr     2,2\n"        /* clear status so it doesn't contain rubbish if not saved. */
                "    lr     3,%2\n"       /* parameter in gpr 3 */
                "    sigp   2,%3,0(%4)\n"
                "    st     2,%1\n"
                "    ipm    %0\n"
                "    srl    %0,28\n"
                : "=d" (ccode), "=m" (*statusptr)
                : "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),
                  "a" (order_code)
                : "cc" , "memory", "2" , "3"
                );
   return ccode;
}
 
#endif /* __SIGP__ */
 
 

Line No.	Rev	Author	Line
1	1276	phoenix	`/*`
2			`* include/asm-s390/sigp.h`
3			`*`
4			`* S390 version`
5			`* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation`
6			`* Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),`
7			`* Martin Schwidefsky (schwidefsky@de.ibm.com)`
8			`*`
9			`* sigp.h by D.J. Barrow (c) IBM 1999`
10			`* contains routines / structures for signalling other S/390 processors in an`
11			`* SMP configuration.`
12			`*/`
13
14			`#ifndef __SIGP__`
15			`#define __SIGP__`
16
17			`#include <asm/ptrace.h>`
18			`#include <asm/atomic.h>`
19
20			`/* get real cpu address from logical cpu number */`
21			`extern volatile int __cpu_logical_map[];`
22
23			`typedef enum`
24			`{`
25			`sigp_unassigned=0x0,`
26			`sigp_sense,`
27			`sigp_external_call,`
28			`sigp_emergency_signal,`
29			`sigp_start,`
30			`sigp_stop,`
31			`sigp_restart,`
32			`sigp_unassigned1,`
33			`sigp_unassigned2,`
34			`sigp_stop_and_store_status,`
35			`sigp_unassigned3,`
36			`sigp_initial_cpu_reset,`
37			`sigp_cpu_reset,`
38			`sigp_set_prefix,`
39			`sigp_store_status_at_address,`
40			`sigp_store_extended_status_at_address`
41			`} sigp_order_code;`
42
43			`typedef __u32 sigp_status_word;`
44
45			`typedef enum`
46			`{`
47			`sigp_order_code_accepted=0,`
48			`sigp_status_stored,`
49			`sigp_busy,`
50			`sigp_not_operational`
51			`} sigp_ccode;`
52
53
54			`/*`
55			`* Definitions for the external call`
56			`*/`
57
58			`/* 'Bit' signals, asynchronous */`
59			`typedef enum`
60			`{`
61			`ec_schedule=0,`
62			`ec_call_function,`
63			`ec_bit_last`
64			`} ec_bit_sig;`
65
66			`/*`
67			`* Signal processor`
68			`*/`
69			`extern __inline__ sigp_ccode`
70			`signal_processor(__u16 cpu_addr, sigp_order_code order_code)`
71			`{`
72			`sigp_ccode ccode;`
73
74			`__asm__ __volatile__(`
75			`" sr 1,1\n" /* parameter=0 in gpr 1 */`
76			`" sigp 1,%1,0(%2)\n"`
77			`" ipm %0\n"`
78			`" srl %0,28\n"`
79			`: "=d" (ccode)`
80			`: "d" (__cpu_logical_map[cpu_addr]), "a" (order_code)`
81			`: "cc" , "memory", "1" );`
82			`return ccode;`
83			`}`
84
85			`/*`
86			`* Signal processor with parameter`
87			`*/`
88			`extern __inline__ sigp_ccode`
89			`signal_processor_p(__u32 parameter,__u16 cpu_addr,sigp_order_code order_code)`
90			`{`
91			`sigp_ccode ccode;`
92
93			`__asm__ __volatile__(`
94			`" lr 1,%1\n" /* parameter in gpr 1 */`
95			`" sigp 1,%2,0(%3)\n"`
96			`" ipm %0\n"`
97			`" srl %0,28\n"`
98			`: "=d" (ccode)`
99			`: "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),`
100			`"a" (order_code)`
101			`: "cc" , "memory", "1" );`
102			`return ccode;`
103			`}`
104
105			`/*`
106			`* Signal processor with parameter and return status`
107			`*/`
108			`extern __inline__ sigp_ccode`
109			`signal_processor_ps(__u32 *statusptr, __u32 parameter,`
110			`__u16 cpu_addr, sigp_order_code order_code)`
111			`{`
112			`sigp_ccode ccode;`
113
114			`__asm__ __volatile__(`
115			`" sr 2,2\n" /* clear status so it doesn't contain rubbish if not saved. */`
116			`" lr 3,%2\n" /* parameter in gpr 3 */`
117			`" sigp 2,%3,0(%4)\n"`
118			`" st 2,%1\n"`
119			`" ipm %0\n"`
120			`" srl %0,28\n"`
121			`: "=d" (ccode), "=m" (*statusptr)`
122			`: "d" (parameter), "d" (__cpu_logical_map[cpu_addr]),`
123			`"a" (order_code)`
124			`: "cc" , "memory", "2" , "3"`
125			`);`
126			`return ccode;`
127			`}`
128
129			`#endif /* __SIGP__ */`
130
131

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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-s390/] [sigp.h] - Blame information for rev 1765