Release 4.14 arch/s390/include/asm/sigp.h

/* SPDX-License-Identifier: GPL-2.0 */
#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_INVALID_ORDER	0x00000002UL

#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)\n"
                "       ipm     %0\n"
                "       srl     %0,28\n"
                : "=d" (cc), "+d" (reg1) : "d" (addr), "a" (order) : "cc");
	*status = reg1;
	return cc;
}

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3
100.00%



static inline int __pcpu_sigp(u16 addr, u8 order, unsigned long parm,
			      u32 *status)
{
	u32 _status;
	int cc;

	cc = ____pcpu_sigp(addr, order, parm, &_status);
	if (status && cc == SIGP_CC_STATUS_STORED)
		*status = _status;
	return cc;
}

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#endif /* __ASSEMBLY__ */

#endif /* __S390_ASM_SIGP_H */
Overall Contributors
Person
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CommitProp
Heiko Carstens
198
86.09%
4
33.33%
David Hildenbrand
8
3.48%
2
16.67%
Thomas Huth
8
3.48%
2
16.67%
Michael Holzheu
7
3.04%
1
8.33%
Cornelia Huck
4
1.74%
1
8.33%
Martin Schwidefsky
4
1.74%
1
8.33%
Greg Kroah-Hartman
1
0.43%
1
8.33%
Total
230
100.00%
12
100.00%
Directory: arch/s390/include/asm

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