Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
36 lines
821 B
C
36 lines
821 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* S390 version
|
|
* Copyright IBM Corp. 1999
|
|
* Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
|
|
*
|
|
* Derived from "include/asm-i386/current.h"
|
|
*/
|
|
|
|
#ifndef _S390_CURRENT_H
|
|
#define _S390_CURRENT_H
|
|
|
|
#include <asm/lowcore.h>
|
|
#include <asm/machine.h>
|
|
|
|
struct task_struct;
|
|
|
|
static __always_inline struct task_struct *get_current(void)
|
|
{
|
|
unsigned long ptr, lc_current;
|
|
|
|
lc_current = offsetof(struct lowcore, current_task);
|
|
asm_inline(
|
|
ALTERNATIVE(" lg %[ptr],%[offzero](%%r0)\n",
|
|
" lg %[ptr],%[offalt](%%r0)\n",
|
|
ALT_FEATURE(MFEATURE_LOWCORE))
|
|
: [ptr] "=d" (ptr)
|
|
: [offzero] "i" (lc_current),
|
|
[offalt] "i" (lc_current + LOWCORE_ALT_ADDRESS));
|
|
return (struct task_struct *)ptr;
|
|
}
|
|
|
|
#define current get_current()
|
|
|
|
#endif /* !(_S390_CURRENT_H) */
|