diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/clock_gettime.S')
| -rw-r--r-- | arch/s390/kernel/vdso32/clock_gettime.S | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index 4e20a9365bb7..48c2206a3956 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S @@ -21,8 +21,12 @@ __kernel_clock_gettime: .cfi_startproc basr %r5,0 0: al %r5,21f-0b(%r5) /* get &_vdso_data */ + chi %r2,__CLOCK_REALTIME_COARSE + je 10f chi %r2,__CLOCK_REALTIME je 11f + chi %r2,__CLOCK_MONOTONIC_COARSE + je 9f chi %r2,__CLOCK_MONOTONIC jne 19f @@ -68,6 +72,26 @@ __kernel_clock_gettime: lhi %r2,0 br %r14 + /* CLOCK_MONOTONIC_COARSE */ +9: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ + tml %r4,0x0001 /* pending update ? loop */ + jnz 9b + l %r2,__VDSO_WTOM_CRS_SEC+4(%r5) + l %r1,__VDSO_WTOM_CRS_NSEC+4(%r5) + cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ + jne 9b + j 8b + + /* CLOCK_REALTIME_COARSE */ +10: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ + tml %r4,0x0001 /* pending update ? loop */ + jnz 10b + l %r2,__VDSO_XTIME_CRS_SEC+4(%r5) + l %r1,__VDSO_XTIME_CRS_NSEC+4(%r5) + cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ + jne 10b + j 17f + /* CLOCK_REALTIME */ 11: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ tml %r4,0x0001 /* pending update ? loop */ |