diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/gettimeofday.S')
| -rw-r--r-- | arch/s390/kernel/vdso32/gettimeofday.S | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S deleted file mode 100644 index b23063fbc892..000000000000 --- a/arch/s390/kernel/vdso32/gettimeofday.S +++ /dev/null @@ -1,103 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Userland implementation of gettimeofday() for 32 bits processes in a - * s390 kernel for use in the vDSO - * - * Copyright IBM Corp. 2008 - * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) - */ -#include <asm/vdso.h> -#include <asm/asm-offsets.h> -#include <asm/unistd.h> -#include <asm/dwarf.h> -#include <asm/ptrace.h> - - .text - .align 4 - .globl __kernel_gettimeofday - .type __kernel_gettimeofday,@function -__kernel_gettimeofday: - CFI_STARTPROC - ahi %r15,-16 - CFI_ADJUST_CFA_OFFSET 16 - CFI_VAL_OFFSET 15, -STACK_FRAME_OVERHEAD - basr %r5,0 -0: al %r5,13f-0b(%r5) /* get &_vdso_data */ -1: ltr %r3,%r3 /* check if tz is NULL */ - je 2f - mvc 0(8,%r3),__VDSO_TIMEZONE(%r5) -2: ltr %r2,%r2 /* check if tv is NULL */ - je 10f - l %r4,__VDSO_UPD_COUNT+4(%r5) /* load update counter */ - tml %r4,0x0001 /* pending update ? loop */ - jnz 1b - stcke 0(%r15) /* Store TOD clock */ - lm %r0,%r1,__VDSO_TS_END(%r5) /* TOD steering end time */ - s %r0,1(%r15) - sl %r1,5(%r15) - brc 3,14f - ahi %r0,-1 -14: ltr %r0,%r0 /* past end of steering? */ - jm 16f - srdl %r0,15 /* 1 per 2^16 */ - tm __VDSO_TS_DIR+3(%r5),0x01 /* steering direction? */ - jz 15f - lcr %r0,%r0 /* negative TOD offset */ - lcr %r1,%r1 - je 15f - ahi %r0,-1 -15: a %r0,1(%r15) /* add TOD timestamp */ - al %r1,5(%r15) - brc 12,17f - ahi %r0,1 - j 17f -16: lm %r0,%r1,1(%r15) /* load TOD timestamp */ -17: s %r0,__VDSO_XTIME_STAMP(%r5) /* TOD - cycle_last */ - sl %r1,__VDSO_XTIME_STAMP+4(%r5) - brc 3,3f - ahi %r0,-1 -3: ms %r0,__VDSO_TK_MULT(%r5) /* * tk->mult */ - st %r0,0(%r15) - l %r0,__VDSO_TK_MULT(%r5) - ltr %r1,%r1 - mr %r0,%r0 - jnm 4f - a %r0,__VDSO_TK_MULT(%r5) -4: al %r0,0(%r15) - al %r0,__VDSO_XTIME_NSEC(%r5) /* + xtime */ - al %r1,__VDSO_XTIME_NSEC+4(%r5) - brc 12,5f - ahi %r0,1 -5: mvc 0(4,%r15),__VDSO_XTIME_SEC+4(%r5) - cl %r4,__VDSO_UPD_COUNT+4(%r5) /* check update counter */ - jne 1b - l %r4,__VDSO_TK_SHIFT(%r5) /* Timekeeper shift */ - srdl %r0,0(%r4) /* >> tk->shift */ - l %r4,0(%r15) /* get tv_sec from stack */ - basr %r5,0 -6: ltr %r0,%r0 - jnz 7f - cl %r1,11f-6b(%r5) - jl 8f -7: ahi %r4,1 - sl %r1,11f-6b(%r5) - brc 3,6b - ahi %r0,-1 - j 6b -8: st %r4,0(%r2) /* store tv->tv_sec */ - ltr %r1,%r1 - m %r0,12f-6b(%r5) - jnm 9f - al %r0,12f-6b(%r5) -9: srl %r0,6 - st %r0,4(%r2) /* store tv->tv_usec */ -10: slr %r2,%r2 - ahi %r15,16 - CFI_ADJUST_CFA_OFFSET -16 - CFI_RESTORE 15 - br %r14 - CFI_ENDPROC -11: .long 1000000000 -12: .long 274877907 -13: .long _vdso_data - 0b - .size __kernel_gettimeofday,.-__kernel_gettimeofday |