diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/clock_gettime.S')
-rw-r--r-- | arch/s390/kernel/vdso32/clock_gettime.S | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S index 48c2206a3956..5eec9afbb5b5 100644 --- a/arch/s390/kernel/vdso32/clock_gettime.S +++ b/arch/s390/kernel/vdso32/clock_gettime.S | |||
@@ -19,6 +19,7 @@ | |||
19 | .type __kernel_clock_gettime,@function | 19 | .type __kernel_clock_gettime,@function |
20 | __kernel_clock_gettime: | 20 | __kernel_clock_gettime: |
21 | .cfi_startproc | 21 | .cfi_startproc |
22 | ahi %r15,-16 | ||
22 | basr %r5,0 | 23 | basr %r5,0 |
23 | 0: al %r5,21f-0b(%r5) /* get &_vdso_data */ | 24 | 0: al %r5,21f-0b(%r5) /* get &_vdso_data */ |
24 | chi %r2,__CLOCK_REALTIME_COARSE | 25 | chi %r2,__CLOCK_REALTIME_COARSE |
@@ -34,8 +35,8 @@ __kernel_clock_gettime: | |||
34 | 1: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ | 35 | 1: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ |
35 | tml %r4,0x0001 /* pending update ? loop */ | 36 | tml %r4,0x0001 /* pending update ? loop */ |
36 | jnz 1b | 37 | jnz 1b |
37 | stcke 24(%r15) /* Store TOD clock */ | 38 | stcke 0(%r15) /* Store TOD clock */ |
38 | lm %r0,%r1,25(%r15) | 39 | lm %r0,%r1,1(%r15) |
39 | s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ | 40 | s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ |
40 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) | 41 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) |
41 | brc 3,2f | 42 | brc 3,2f |
@@ -70,6 +71,7 @@ __kernel_clock_gettime: | |||
70 | 8: st %r2,0(%r3) /* store tp->tv_sec */ | 71 | 8: st %r2,0(%r3) /* store tp->tv_sec */ |
71 | st %r1,4(%r3) /* store tp->tv_nsec */ | 72 | st %r1,4(%r3) /* store tp->tv_nsec */ |
72 | lhi %r2,0 | 73 | lhi %r2,0 |
74 | ahi %r15,16 | ||
73 | br %r14 | 75 | br %r14 |
74 | 76 | ||
75 | /* CLOCK_MONOTONIC_COARSE */ | 77 | /* CLOCK_MONOTONIC_COARSE */ |
@@ -96,8 +98,8 @@ __kernel_clock_gettime: | |||
96 | 11: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ | 98 | 11: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ |
97 | tml %r4,0x0001 /* pending update ? loop */ | 99 | tml %r4,0x0001 /* pending update ? loop */ |
98 | jnz 11b | 100 | jnz 11b |
99 | stcke 24(%r15) /* Store TOD clock */ | 101 | stcke 0(%r15) /* Store TOD clock */ |
100 | lm %r0,%r1,25(%r15) | 102 | lm %r0,%r1,1(%r15) |
101 | s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ | 103 | s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ |
102 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) | 104 | sl %r1,__VDSO_XTIME_STAMP+4(%r5) |
103 | brc 3,12f | 105 | brc 3,12f |
@@ -132,11 +134,13 @@ __kernel_clock_gettime: | |||
132 | 17: st %r2,0(%r3) /* store tp->tv_sec */ | 134 | 17: st %r2,0(%r3) /* store tp->tv_sec */ |
133 | st %r1,4(%r3) /* store tp->tv_nsec */ | 135 | st %r1,4(%r3) /* store tp->tv_nsec */ |
134 | lhi %r2,0 | 136 | lhi %r2,0 |
137 | ahi %r15,16 | ||
135 | br %r14 | 138 | br %r14 |
136 | 139 | ||
137 | /* Fallback to system call */ | 140 | /* Fallback to system call */ |
138 | 19: lhi %r1,__NR_clock_gettime | 141 | 19: lhi %r1,__NR_clock_gettime |
139 | svc 0 | 142 | svc 0 |
143 | ahi %r15,16 | ||
140 | br %r14 | 144 | br %r14 |
141 | 145 | ||
142 | 20: .long 1000000000 | 146 | 20: .long 1000000000 |