diff options
author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-05-31 07:23:37 (GMT) |
---|---|---|
committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-06-13 13:58:20 (GMT) |
commit | 9dc06ccf4699db81b88a6ff45a8acefd6c278327 (patch) | |
tree | 11469c12b68d75ae6ab193b136927c0f363db6fb | |
parent | 2f82f57763d97700788cf228de1cf30ffd4153b4 (diff) | |
download | linux-9dc06ccf4699db81b88a6ff45a8acefd6c278327.tar.xz |
s390/time: move PTFF definitions
The PTFF instruction is not a function of ETR, rename and move the
PTFF definitions from etr.h to timex.h.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r-- | arch/s390/include/asm/etr.h | 32 | ||||
-rw-r--r-- | arch/s390/include/asm/timex.h | 33 |
2 files changed, 33 insertions, 32 deletions
diff --git a/arch/s390/include/asm/etr.h b/arch/s390/include/asm/etr.h index 105f90e..63b99cc 100644 --- a/arch/s390/include/asm/etr.h +++ b/arch/s390/include/asm/etr.h @@ -129,14 +129,6 @@ struct etr_irq_parm { 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) { @@ -186,30 +178,6 @@ static inline int etr_steai(struct etr_aib *aib, unsigned int func) #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 = -EOPNOTSUPP; - - 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 */ int etr_switch_to_local(void); int etr_sync_check(void); diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h index dcb6312..920db0a 100644 --- a/arch/s390/include/asm/timex.h +++ b/arch/s390/include/asm/timex.h @@ -52,6 +52,39 @@ static inline void store_clock_comparator(__u64 *time) void clock_comparator_work(void); +/* Function codes for the ptff instruction. */ +#define PTFF_QAF 0x00 /* query available functions */ +#define PTFF_QTO 0x01 /* query tod offset */ +#define PTFF_QSI 0x02 /* query steering information */ +#define PTFF_ATO 0x40 /* adjust tod offset */ +#define PTFF_STO 0x41 /* set tod offset */ +#define PTFF_SFS 0x42 /* set fine steering rate */ +#define PTFF_SGS 0x43 /* set gross steering rate */ + +/* Query TOD offset result */ +struct ptff_qto { + unsigned long long physical_clock; + unsigned long long tod_offset; + unsigned long long logical_tod_offset; + unsigned long long tod_epoch_difference; +} __packed; + +static inline int ptff(void *ptff_block, size_t len, unsigned int func) +{ + typedef struct { char _[len]; } addrtype; + register unsigned int reg0 asm("0") = func; + register unsigned long reg1 asm("1") = (unsigned long) ptff_block; + int rc; + + asm volatile( + " .word 0x0104\n" + " ipm %0\n" + " srl %0,28\n" + : "=d" (rc), "+m" (*(addrtype *) ptff_block) + : "d" (reg0), "d" (reg1) : "cc"); + return rc; +} + static inline unsigned long long local_tick_disable(void) { unsigned long long old; |