diff options
Diffstat (limited to 'arch/s390/kernel/vdso64/clock_gettime.S')
| -rw-r--r-- | arch/s390/kernel/vdso64/clock_gettime.S | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S index d46c95ed5f19..91940ed33a4a 100644 --- a/arch/s390/kernel/vdso64/clock_gettime.S +++ b/arch/s390/kernel/vdso64/clock_gettime.S | |||
| @@ -22,7 +22,9 @@ __kernel_clock_gettime: | |||
| 22 | larl %r5,_vdso_data | 22 | larl %r5,_vdso_data |
| 23 | cghi %r2,__CLOCK_REALTIME | 23 | cghi %r2,__CLOCK_REALTIME |
| 24 | je 4f | 24 | je 4f |
| 25 | cghi %r2,-2 /* CLOCK_THREAD_CPUTIME_ID for this thread */ | 25 | cghi %r2,__CLOCK_THREAD_CPUTIME_ID |
| 26 | je 9f | ||
| 27 | cghi %r2,-2 /* Per-thread CPUCLOCK with PID=0, VIRT=1 */ | ||
| 26 | je 9f | 28 | je 9f |
| 27 | cghi %r2,__CLOCK_MONOTONIC | 29 | cghi %r2,__CLOCK_MONOTONIC |
| 28 | jne 12f | 30 | jne 12f |
| @@ -34,14 +36,13 @@ __kernel_clock_gettime: | |||
| 34 | tmll %r4,0x0001 /* pending update ? loop */ | 36 | tmll %r4,0x0001 /* pending update ? loop */ |
| 35 | jnz 0b | 37 | jnz 0b |
| 36 | stck 48(%r15) /* Store TOD clock */ | 38 | stck 48(%r15) /* Store TOD clock */ |
| 39 | lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ | ||
| 40 | lg %r0,__VDSO_WTOM_SEC(%r5) | ||
| 37 | lg %r1,48(%r15) | 41 | lg %r1,48(%r15) |
| 38 | sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ | 42 | sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ |
| 39 | msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */ | 43 | msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ |
| 40 | srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */ | 44 | alg %r1,__VDSO_WTOM_NSEC(%r5) |
| 41 | alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime */ | 45 | srlg %r1,%r1,0(%r2) /* >> tk->shift */ |
| 42 | lg %r0,__VDSO_XTIME_SEC(%r5) | ||
| 43 | alg %r1,__VDSO_WTOM_NSEC(%r5) /* + wall_to_monotonic */ | ||
| 44 | alg %r0,__VDSO_WTOM_SEC(%r5) | ||
| 45 | clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ | 46 | clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ |
| 46 | jne 0b | 47 | jne 0b |
| 47 | larl %r5,13f | 48 | larl %r5,13f |
| @@ -62,12 +63,13 @@ __kernel_clock_gettime: | |||
| 62 | tmll %r4,0x0001 /* pending update ? loop */ | 63 | tmll %r4,0x0001 /* pending update ? loop */ |
| 63 | jnz 5b | 64 | jnz 5b |
| 64 | stck 48(%r15) /* Store TOD clock */ | 65 | stck 48(%r15) /* Store TOD clock */ |
| 66 | lgf %r2,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ | ||
| 65 | lg %r1,48(%r15) | 67 | lg %r1,48(%r15) |
| 66 | sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ | 68 | sg %r1,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ |
| 67 | msgf %r1,__VDSO_NTP_MULT(%r5) /* * NTP adjustment */ | 69 | msgf %r1,__VDSO_TK_MULT(%r5) /* * tk->mult */ |
| 68 | srlg %r1,%r1,12 /* cyc2ns(clock,cycle_delta) */ | 70 | alg %r1,__VDSO_XTIME_NSEC(%r5) /* + tk->xtime_nsec */ |
| 69 | alg %r1,__VDSO_XTIME_NSEC(%r5) /* + xtime */ | 71 | srlg %r1,%r1,0(%r2) /* >> tk->shift */ |
| 70 | lg %r0,__VDSO_XTIME_SEC(%r5) | 72 | lg %r0,__VDSO_XTIME_SEC(%r5) /* tk->xtime_sec */ |
| 71 | clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ | 73 | clg %r4,__VDSO_UPD_COUNT(%r5) /* check update counter */ |
| 72 | jne 5b | 74 | jne 5b |
| 73 | larl %r5,13f | 75 | larl %r5,13f |