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/* 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)
{
union register_pair r1 = { .odd = parm, };
int cc;
asm volatile(
" sigp %[r1],%[addr],0(%[order])\n"
" ipm %[cc]\n"
" srl %[cc],28\n"
: [cc] "=&d" (cc), [r1] "+&d" (r1.pair)
: [addr] "d" (addr), [order] "a" (order)
: "cc");
*status = r1.even;
return cc;
}
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;
}
#endif /* __ASSEMBLY__ */
#endif /* __S390_ASM_SIGP_H */