16c9f99dfSJanosch Frank /* SPDX-License-Identifier: GPL-2.0-only */
20af4b381SJanosch Frank /*
30af4b381SJanosch Frank * SIGP related definitions.
40af4b381SJanosch Frank *
50af4b381SJanosch Frank * Copied from the Linux kernel file arch/s390/include/asm/sigp.h
60af4b381SJanosch Frank */
70af4b381SJanosch Frank
8eb5a1bbaSCornelia Huck #ifndef _ASMS390X_SIGP_H_
9eb5a1bbaSCornelia Huck #define _ASMS390X_SIGP_H_
100af4b381SJanosch Frank
110af4b381SJanosch Frank /* SIGP order codes */
120af4b381SJanosch Frank #define SIGP_SENSE 1
130af4b381SJanosch Frank #define SIGP_EXTERNAL_CALL 2
140af4b381SJanosch Frank #define SIGP_EMERGENCY_SIGNAL 3
150af4b381SJanosch Frank #define SIGP_START 4
160af4b381SJanosch Frank #define SIGP_STOP 5
170af4b381SJanosch Frank #define SIGP_RESTART 6
180af4b381SJanosch Frank #define SIGP_STOP_AND_STORE_STATUS 9
190af4b381SJanosch Frank #define SIGP_INITIAL_CPU_RESET 11
200af4b381SJanosch Frank #define SIGP_CPU_RESET 12
210af4b381SJanosch Frank #define SIGP_SET_PREFIX 13
220af4b381SJanosch Frank #define SIGP_STORE_STATUS_AT_ADDRESS 14
230af4b381SJanosch Frank #define SIGP_SET_ARCHITECTURE 18
240af4b381SJanosch Frank #define SIGP_COND_EMERGENCY_SIGNAL 19
250af4b381SJanosch Frank #define SIGP_SENSE_RUNNING 21
260af4b381SJanosch Frank #define SIGP_SET_MULTI_THREADING 22
270af4b381SJanosch Frank #define SIGP_STORE_ADDITIONAL_STATUS 23
280af4b381SJanosch Frank
290af4b381SJanosch Frank /* SIGP condition codes */
300af4b381SJanosch Frank #define SIGP_CC_ORDER_CODE_ACCEPTED 0
310af4b381SJanosch Frank #define SIGP_CC_STATUS_STORED 1
320af4b381SJanosch Frank #define SIGP_CC_BUSY 2
330af4b381SJanosch Frank #define SIGP_CC_NOT_OPERATIONAL 3
340af4b381SJanosch Frank
350af4b381SJanosch Frank /* SIGP cpu status bits */
360af4b381SJanosch Frank
370af4b381SJanosch Frank #define SIGP_STATUS_INVALID_ORDER 0x00000002UL
380af4b381SJanosch Frank #define SIGP_STATUS_CHECK_STOP 0x00000010UL
390af4b381SJanosch Frank #define SIGP_STATUS_STOPPED 0x00000040UL
400af4b381SJanosch Frank #define SIGP_STATUS_EXT_CALL_PENDING 0x00000080UL
410af4b381SJanosch Frank #define SIGP_STATUS_INVALID_PARAMETER 0x00000100UL
420af4b381SJanosch Frank #define SIGP_STATUS_INCORRECT_STATE 0x00000200UL
430af4b381SJanosch Frank #define SIGP_STATUS_NOT_RUNNING 0x00000400UL
440af4b381SJanosch Frank
450af4b381SJanosch Frank #ifndef __ASSEMBLER__
460af4b381SJanosch Frank
47f77c0515SJanosch Frank
sigp(uint16_t addr,uint8_t order,unsigned long parm,uint32_t * status)48f77c0515SJanosch Frank static inline int sigp(uint16_t addr, uint8_t order, unsigned long parm,
49f77c0515SJanosch Frank uint32_t *status)
500af4b381SJanosch Frank {
51f77c0515SJanosch Frank register unsigned long reg1 asm ("1") = parm;
523dbf3c40SJanosch Frank uint64_t bogus_cc = SIGP_CC_NOT_OPERATIONAL;
53f77c0515SJanosch Frank int cc;
540af4b381SJanosch Frank
550af4b381SJanosch Frank asm volatile(
563dbf3c40SJanosch Frank " tmll %[bogus_cc],3\n"
57*40e2c619SJanosch Frank " sigp %[reg1],%[addr],0(%[order])\n"
58*40e2c619SJanosch Frank " ipm %[cc]\n"
59*40e2c619SJanosch Frank " srl %[cc],28\n"
60*40e2c619SJanosch Frank : [cc] "=d" (cc), [reg1] "+d" (reg1)
61*40e2c619SJanosch Frank : [addr] "d" (addr), [order] "a" (order), [bogus_cc] "d" (bogus_cc)
623dbf3c40SJanosch Frank : "cc");
63f77c0515SJanosch Frank if (status)
64f77c0515SJanosch Frank *status = reg1;
65f77c0515SJanosch Frank return cc;
66f77c0515SJanosch Frank }
67f77c0515SJanosch Frank
sigp_retry(uint16_t addr,uint8_t order,unsigned long parm,uint32_t * status)68f77c0515SJanosch Frank static inline int sigp_retry(uint16_t addr, uint8_t order, unsigned long parm,
69f77c0515SJanosch Frank uint32_t *status)
70f77c0515SJanosch Frank {
71f77c0515SJanosch Frank int cc;
72f77c0515SJanosch Frank
73f77c0515SJanosch Frank do {
74f77c0515SJanosch Frank cc = sigp(addr, order, parm, status);
75f77c0515SJanosch Frank } while (cc == 2);
76f77c0515SJanosch Frank return cc;
770af4b381SJanosch Frank }
780af4b381SJanosch Frank
790af4b381SJanosch Frank #endif /* __ASSEMBLER__ */
80eb5a1bbaSCornelia Huck #endif /* _ASMS390X_SIGP_H_ */
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