0545e9dc6d
commit d1edce71135cc6d98c0a4b5729774542b676e769 Author: sophgo-forum-service <forum_service@sophgo.com> Date: Fri Mar 15 16:07:33 2024 +0800 [fix] recommend using ssh method to clone repo. [fix] fix sensor driver repo branch name.
32 lines
624 B
ArmAsm
32 lines
624 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Userland implementation of getcpu() for 64 bits processes in a
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* s390 kernel for use in the vDSO
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*
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* Copyright IBM Corp. 2016
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* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
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*/
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#include <asm/vdso.h>
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#include <asm/asm-offsets.h>
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#include <asm/dwarf.h>
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.text
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.align 4
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.globl __kernel_getcpu
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.type __kernel_getcpu,@function
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__kernel_getcpu:
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CFI_STARTPROC
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sacf 256
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lm %r4,%r5,__VDSO_GETCPU_VAL(%r0)
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sacf 0
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ltgr %r2,%r2
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jz 2f
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st %r5,0(%r2)
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2: ltgr %r3,%r3
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jz 3f
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st %r4,0(%r3)
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3: lghi %r2,0
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br %r14
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CFI_ENDPROC
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.size __kernel_getcpu,.-__kernel_getcpu
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