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s390/time: move PTFF definitions

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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>
This commit is contained in:
Martin Schwidefsky
2016-05-31 09:23:37 +02:00
parent 2f82f57763
commit 9dc06ccf46
2 changed files with 33 additions and 32 deletions
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33
arch/s390/include/asm/timex.h
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@@ -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;