73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
|
/* 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 */
|