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Diffstat (limited to 'arch/s390/kernel/vdso32/clock_gettime.S')
-rw-r--r--arch/s390/kernel/vdso32/clock_gettime.S12
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
230: al %r5,21f-0b(%r5) /* get &_vdso_data */ 240: 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:
341: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ 351: 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:
708: st %r2,0(%r3) /* store tp->tv_sec */ 718: 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:
9611: l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ 9811: 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:
13217: st %r2,0(%r3) /* store tp->tv_sec */ 13417: 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 */
13819: lhi %r1,__NR_clock_gettime 14119: lhi %r1,__NR_clock_gettime
139 svc 0 142 svc 0
143 ahi %r15,16
140 br %r14 144 br %r14
141 145
14220: .long 1000000000 14620: .long 1000000000