diff options
Diffstat (limited to 'include/asm-s390/etr.h')
| -rw-r--r-- | include/asm-s390/etr.h | 258 |
1 files changed, 0 insertions, 258 deletions
diff --git a/include/asm-s390/etr.h b/include/asm-s390/etr.h deleted file mode 100644 index 80ef58c..0000000 --- a/include/asm-s390/etr.h +++ /dev/null @@ -1,258 +0,0 @@ -/* - * include/asm-s390/etr.h - * - * Copyright IBM Corp. 2006 - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - */ -#ifndef __S390_ETR_H -#define __S390_ETR_H - -/* ETR attachment control register */ -struct etr_eacr { - unsigned int e0 : 1; /* port 0 stepping control */ - unsigned int e1 : 1; /* port 1 stepping control */ - unsigned int _pad0 : 5; /* must be 00100 */ - unsigned int dp : 1; /* data port control */ - unsigned int p0 : 1; /* port 0 change recognition control */ - unsigned int p1 : 1; /* port 1 change recognition control */ - unsigned int _pad1 : 3; /* must be 000 */ - unsigned int ea : 1; /* ETR alert control */ - unsigned int es : 1; /* ETR sync check control */ - unsigned int sl : 1; /* switch to local control */ -} __attribute__ ((packed)); - -/* Port state returned by steai */ -enum etr_psc { - etr_psc_operational = 0, - etr_psc_semi_operational = 1, - etr_psc_protocol_error = 4, - etr_psc_no_symbols = 8, - etr_psc_no_signal = 12, - etr_psc_pps_mode = 13 -}; - -/* Logical port state returned by stetr */ -enum etr_lpsc { - etr_lpsc_operational_step = 0, - etr_lpsc_operational_alt = 1, - etr_lpsc_semi_operational = 2, - etr_lpsc_protocol_error = 4, - etr_lpsc_no_symbol_sync = 8, - etr_lpsc_no_signal = 12, - etr_lpsc_pps_mode = 13 -}; - -/* ETR status words */ -struct etr_esw { - struct etr_eacr eacr; /* attachment control register */ - unsigned int y : 1; /* stepping mode */ - unsigned int _pad0 : 5; /* must be 00000 */ - unsigned int p : 1; /* stepping port number */ - unsigned int q : 1; /* data port number */ - unsigned int psc0 : 4; /* port 0 state code */ - unsigned int psc1 : 4; /* port 1 state code */ -} __attribute__ ((packed)); - -/* Second level data register status word */ -struct etr_slsw { - unsigned int vv1 : 1; /* copy of validity bit data frame 1 */ - unsigned int vv2 : 1; /* copy of validity bit data frame 2 */ - unsigned int vv3 : 1; /* copy of validity bit data frame 3 */ - unsigned int vv4 : 1; /* copy of validity bit data frame 4 */ - unsigned int _pad0 : 19; /* must by all zeroes */ - unsigned int n : 1; /* EAF port number */ - unsigned int v1 : 1; /* validity bit ETR data frame 1 */ - unsigned int v2 : 1; /* validity bit ETR data frame 2 */ - unsigned int v3 : 1; /* validity bit ETR data frame 3 */ - unsigned int v4 : 1; /* validity bit ETR data frame 4 */ - unsigned int _pad1 : 4; /* must be 0000 */ -} __attribute__ ((packed)); - -/* ETR data frames */ -struct etr_edf1 { - unsigned int u : 1; /* untuned bit */ - unsigned int _pad0 : 1; /* must be 0 */ - unsigned int r : 1; /* service request bit */ - unsigned int _pad1 : 4; /* must be 0000 */ - unsigned int a : 1; /* time adjustment bit */ - unsigned int net_id : 8; /* ETR network id */ - unsigned int etr_id : 8; /* id of ETR which sends data frames */ - unsigned int etr_pn : 8; /* port number of ETR output port */ -} __attribute__ ((packed)); - -struct etr_edf2 { - unsigned int etv : 32; /* Upper 32 bits of TOD. */ -} __attribute__ ((packed)); - -struct etr_edf3 { - unsigned int rc : 8; /* failure reason code */ - unsigned int _pad0 : 3; /* must be 000 */ - unsigned int c : 1; /* ETR coupled bit */ - unsigned int tc : 4; /* ETR type code */ - unsigned int blto : 8; /* biased local time offset */ - /* (blto - 128) * 15 = minutes */ - unsigned int buo : 8; /* biased utc offset */ - /* (buo - 128) = leap seconds */ -} __attribute__ ((packed)); - -struct etr_edf4 { - unsigned int ed : 8; /* ETS device dependent data */ - unsigned int _pad0 : 1; /* must be 0 */ - unsigned int buc : 5; /* biased ut1 correction */ - /* (buc - 16) * 0.1 seconds */ - unsigned int em : 6; /* ETS error magnitude */ - unsigned int dc : 6; /* ETS drift code */ - unsigned int sc : 6; /* ETS steering code */ -} __attribute__ ((packed)); - -/* - * ETR attachment information block, two formats - * format 1 has 4 reserved words with a size of 64 bytes - * format 2 has 16 reserved words with a size of 96 bytes - */ -struct etr_aib { - struct etr_esw esw; - struct etr_slsw slsw; - unsigned long long tsp; - struct etr_edf1 edf1; - struct etr_edf2 edf2; - struct etr_edf3 edf3; - struct etr_edf4 edf4; - unsigned int reserved[16]; -} __attribute__ ((packed,aligned(8))); - -/* ETR interruption parameter */ -struct etr_irq_parm { - unsigned int _pad0 : 8; - unsigned int pc0 : 1; /* port 0 state change */ - unsigned int pc1 : 1; /* port 1 state change */ - unsigned int _pad1 : 3; - unsigned int eai : 1; /* ETR alert indication */ - unsigned int _pad2 : 18; -} __attribute__ ((packed)); - -/* Query TOD offset result */ -struct etr_ptff_qto { - unsigned long long physical_clock; - unsigned long long tod_offset; - unsigned long long logical_tod_offset; - unsigned long long tod_epoch_difference; -} __attribute__ ((packed)); - -/* Inline assembly helper functions */ -static inline int etr_setr(struct etr_eacr *ctrl) -{ - int rc = -ENOSYS; - - asm volatile( - " .insn s,0xb2160000,0(%2)\n" - "0: la %0,0\n" - "1:\n" - EX_TABLE(0b,1b) - : "+d" (rc) : "m" (*ctrl), "a" (ctrl)); - return rc; -} - -/* Stores a format 1 aib with 64 bytes */ -static inline int etr_stetr(struct etr_aib *aib) -{ - int rc = -ENOSYS; - - asm volatile( - " .insn s,0xb2170000,0(%2)\n" - "0: la %0,0\n" - "1:\n" - EX_TABLE(0b,1b) - : "+d" (rc) : "m" (*aib), "a" (aib)); - return rc; -} - -/* Stores a format 2 aib with 96 bytes for specified port */ -static inline int etr_steai(struct etr_aib *aib, unsigned int func) -{ - register unsigned int reg0 asm("0") = func; - int rc = -ENOSYS; - - asm volatile( - " .insn s,0xb2b30000,0(%2)\n" - "0: la %0,0\n" - "1:\n" - EX_TABLE(0b,1b) - : "+d" (rc) : "m" (*aib), "a" (aib), "d" (reg0)); - return rc; -} - -/* Function codes for the steai instruction. */ -#define ETR_STEAI_STEPPING_PORT 0x10 -#define ETR_STEAI_ALTERNATE_PORT 0x11 -#define ETR_STEAI_PORT_0 0x12 -#define ETR_STEAI_PORT_1 0x13 - -static inline int etr_ptff(void *ptff_block, unsigned int func) -{ - register unsigned int reg0 asm("0") = func; - register unsigned long reg1 asm("1") = (unsigned long) ptff_block; - int rc = -ENOSYS; - - asm volatile( - " .word 0x0104\n" - " ipm %0\n" - " srl %0,28\n" - : "=d" (rc), "=m" (ptff_block) - : "d" (reg0), "d" (reg1), "m" (ptff_block) : "cc"); - return rc; -} - -/* Function codes for the ptff instruction. */ -#define ETR_PTFF_QAF 0x00 /* query available functions */ -#define ETR_PTFF_QTO 0x01 /* query tod offset */ -#define ETR_PTFF_QSI 0x02 /* query steering information */ -#define ETR_PTFF_ATO 0x40 /* adjust tod offset */ -#define ETR_PTFF_STO 0x41 /* set tod offset */ -#define ETR_PTFF_SFS 0x42 /* set fine steering rate */ -#define ETR_PTFF_SGS 0x43 /* set gross steering rate */ - -/* Functions needed by the machine check handler */ -void etr_switch_to_local(void); -void etr_sync_check(void); - -/* STP interruption parameter */ -struct stp_irq_parm { - unsigned int _pad0 : 14; - unsigned int tsc : 1; /* Timing status change */ - unsigned int lac : 1; /* Link availability change */ - unsigned int tcpc : 1; /* Time control parameter change */ - unsigned int _pad2 : 15; -} __attribute__ ((packed)); - -#define STP_OP_SYNC 1 -#define STP_OP_CTRL 3 - -struct stp_sstpi { - unsigned int rsvd0; - unsigned int rsvd1 : 8; - unsigned int stratum : 8; - unsigned int vbits : 16; - unsigned int leaps : 16; - unsigned int tmd : 4; - unsigned int ctn : 4; - unsigned int rsvd2 : 3; - unsigned int c : 1; - unsigned int tst : 4; - unsigned int tzo : 16; - unsigned int dsto : 16; - unsigned int ctrl : 16; - unsigned int rsvd3 : 16; - unsigned int tto; - unsigned int rsvd4; - unsigned int ctnid[3]; - unsigned int rsvd5; - unsigned int todoff[4]; - unsigned int rsvd6[48]; -} __attribute__ ((packed)); - -/* Functions needed by the machine check handler */ -void stp_sync_check(void); -void stp_island_check(void); - -#endif /* __S390_ETR_H */ |