53634237e7
Now that the SPDX tag is in all arch/s390/kernel/ files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
44 lines
1010 B
ArmAsm
44 lines
1010 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Userland implementation of clock_getres() for 32 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. 2008
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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/unistd.h>
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.text
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.align 4
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.globl __kernel_clock_getres
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.type __kernel_clock_getres,@function
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__kernel_clock_getres:
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.cfi_startproc
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basr %r1,0
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la %r1,4f-.(%r1)
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chi %r2,__CLOCK_REALTIME
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je 0f
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chi %r2,__CLOCK_MONOTONIC
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je 0f
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la %r1,5f-4f(%r1)
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chi %r2,__CLOCK_REALTIME_COARSE
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je 0f
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chi %r2,__CLOCK_MONOTONIC_COARSE
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jne 3f
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0: ltr %r3,%r3
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jz 2f /* res == NULL */
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1: l %r0,0(%r1)
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xc 0(4,%r3),0(%r3) /* set tp->tv_sec to zero */
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st %r0,4(%r3) /* store tp->tv_usec */
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2: lhi %r2,0
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br %r14
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3: lhi %r1,__NR_clock_getres /* fallback to svc */
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svc 0
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br %r14
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4: .long __CLOCK_REALTIME_RES
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5: .long __CLOCK_COARSE_RES
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.cfi_endproc
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.size __kernel_clock_getres,.-__kernel_clock_getres
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