diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/getcpu.S')
| -rw-r--r-- | arch/s390/kernel/vdso32/getcpu.S | 43 |
1 files changed, 0 insertions, 43 deletions
diff --git a/arch/s390/kernel/vdso32/getcpu.S b/arch/s390/kernel/vdso32/getcpu.S deleted file mode 100644 index c1ed0b72030f..000000000000 --- a/arch/s390/kernel/vdso32/getcpu.S +++ /dev/null @@ -1,43 +0,0 @@ -/* - * Userland implementation of getcpu() for 32 bits processes in a - * s390 kernel for use in the vDSO - * - * Copyright IBM Corp. 2016 - * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com> - */ -#include <asm/vdso.h> -#include <asm/asm-offsets.h> - - .text - .align 4 - .globl __kernel_getcpu - .type __kernel_getcpu,@function -__kernel_getcpu: - .cfi_startproc - ear %r1,%a4 - lhi %r4,1 - sll %r4,24 - sar %a4,%r4 - la %r4,0 - epsw %r0,0 - sacf 512 - l %r5,__VDSO_CPU_NR(%r4) - l %r4,__VDSO_NODE_ID(%r4) - tml %r0,0x4000 - jo 1f - tml %r0,0x8000 - jno 0f - sacf 256 - j 1f -0: sacf 0 -1: sar %a4,%r1 - ltr %r2,%r2 - jz 2f - st %r5,0(%r2) -2: ltr %r3,%r3 - jz 3f - st %r4,0(%r3) -3: lhi %r2,0 - br %r14 - .cfi_endproc - .size __kernel_getcpu,.-__kernel_getcpu |