s390/time: remove ETR support
The External-Time-Reference (ETR) clock synchronization interface has been superseded by Server-Time-Protocol (STP). Remove the outdated ETR interface. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>hifive-unleashed-5.1
Martin Schwidefsky
parent
936cc855ff
commit
fd5ada0403
|
|
@ -1,229 +0,0 @@
|
|||
/*
|
||||
* 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));
|
||||
|
||||
/* Inline assembly helper functions */
|
||||
static inline int etr_setr(struct etr_eacr *ctrl)
|
||||
{
|
||||
int rc = -EOPNOTSUPP;
|
||||
|
||||
asm volatile(
|
||||
" .insn s,0xb2160000,%1\n"
|
||||
"0: la %0,0\n"
|
||||
"1:\n"
|
||||
EX_TABLE(0b,1b)
|
||||
: "+d" (rc) : "Q" (*ctrl));
|
||||
return rc;
|
||||
}
|
||||
|
||||
/* Stores a format 1 aib with 64 bytes */
|
||||
static inline int etr_stetr(struct etr_aib *aib)
|
||||
{
|
||||
int rc = -EOPNOTSUPP;
|
||||
|
||||
asm volatile(
|
||||
" .insn s,0xb2170000,%1\n"
|
||||
"0: la %0,0\n"
|
||||
"1:\n"
|
||||
EX_TABLE(0b,1b)
|
||||
: "+d" (rc) : "Q" (*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 = -EOPNOTSUPP;
|
||||
|
||||
asm volatile(
|
||||
" .insn s,0xb2b30000,%1\n"
|
||||
"0: la %0,0\n"
|
||||
"1:\n"
|
||||
EX_TABLE(0b,1b)
|
||||
: "+d" (rc) : "Q" (*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
|
||||
|
||||
/* Functions needed by the machine check handler */
|
||||
int etr_switch_to_local(void);
|
||||
int etr_sync_check(void);
|
||||
void etr_queue_work(void);
|
||||
|
||||
/* notifier for syncs */
|
||||
extern struct atomic_notifier_head s390_epoch_delta_notifier;
|
||||
|
||||
/* 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 */
|
||||
int stp_sync_check(void);
|
||||
int stp_island_check(void);
|
||||
void stp_queue_work(void);
|
||||
|
||||
#endif /* __S390_ETR_H */
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
/*
|
||||
* Copyright IBM Corp. 2006
|
||||
* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
|
||||
*/
|
||||
#ifndef __S390_STP_H
|
||||
#define __S390_STP_H
|
||||
|
||||
/* notifier for syncs */
|
||||
extern struct atomic_notifier_head s390_epoch_delta_notifier;
|
||||
|
||||
/* 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 */
|
||||
int stp_sync_check(void);
|
||||
int stp_island_check(void);
|
||||
void stp_queue_work(void);
|
||||
|
||||
#endif /* __S390_STP_H */
|
||||
|
|
@ -16,7 +16,7 @@
|
|||
#include <linux/module.h>
|
||||
#include <asm/lowcore.h>
|
||||
#include <asm/smp.h>
|
||||
#include <asm/etr.h>
|
||||
#include <asm/stp.h>
|
||||
#include <asm/cputime.h>
|
||||
#include <asm/nmi.h>
|
||||
#include <asm/crw.h>
|
||||
|
|
@ -27,7 +27,6 @@ struct mcck_struct {
|
|||
unsigned int kill_task : 1;
|
||||
unsigned int channel_report : 1;
|
||||
unsigned int warning : 1;
|
||||
unsigned int etr_queue : 1;
|
||||
unsigned int stp_queue : 1;
|
||||
unsigned long mcck_code;
|
||||
};
|
||||
|
|
@ -82,8 +81,6 @@ void s390_handle_mcck(void)
|
|||
if (xchg(&mchchk_wng_posted, 1) == 0)
|
||||
kill_cad_pid(SIGPWR, 1);
|
||||
}
|
||||
if (mcck.etr_queue)
|
||||
etr_queue_work();
|
||||
if (mcck.stp_queue)
|
||||
stp_queue_work();
|
||||
if (mcck.kill_task) {
|
||||
|
|
@ -241,8 +238,6 @@ static int notrace s390_validate_registers(union mci mci)
|
|||
|
||||
#define ED_STP_ISLAND 6 /* External damage STP island check */
|
||||
#define ED_STP_SYNC 7 /* External damage STP sync check */
|
||||
#define ED_ETR_SYNC 12 /* External damage ETR sync check */
|
||||
#define ED_ETR_SWITCH 13 /* External damage ETR switch to local */
|
||||
|
||||
/*
|
||||
* machine check handler.
|
||||
|
|
@ -325,15 +320,11 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
|
|||
}
|
||||
if (mci.ed && mci.ec) {
|
||||
/* External damage */
|
||||
if (S390_lowcore.external_damage_code & (1U << ED_ETR_SYNC))
|
||||
mcck->etr_queue |= etr_sync_check();
|
||||
if (S390_lowcore.external_damage_code & (1U << ED_ETR_SWITCH))
|
||||
mcck->etr_queue |= etr_switch_to_local();
|
||||
if (S390_lowcore.external_damage_code & (1U << ED_STP_SYNC))
|
||||
mcck->stp_queue |= stp_sync_check();
|
||||
if (S390_lowcore.external_damage_code & (1U << ED_STP_ISLAND))
|
||||
mcck->stp_queue |= stp_island_check();
|
||||
if (mcck->etr_queue || mcck->stp_queue)
|
||||
if (mcck->stp_queue)
|
||||
set_cpu_flag(CIF_MCCK_PENDING);
|
||||
}
|
||||
if (mci.se)
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -28,7 +28,7 @@
|
|||
#include <linux/vmalloc.h>
|
||||
#include <asm/asm-offsets.h>
|
||||
#include <asm/lowcore.h>
|
||||
#include <asm/etr.h>
|
||||
#include <asm/stp.h>
|
||||
#include <asm/pgtable.h>
|
||||
#include <asm/gmap.h>
|
||||
#include <asm/nmi.h>
|
||||
|
|
|
|||
Loading…
Reference in New Issue