[mirror_ubuntu-eoan-kernel.git] / arch / powerpc / include / asm / current.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_POWERPC_CURRENT_H
#define _ASM_POWERPC_CURRENT_H
#ifdef __KERNEL__

/*
 */

struct task_struct;

#ifdef __powerpc64__
#include <linux/stddef.h>
#include <asm/paca.h>

static inline struct task_struct *get_current(void)
{
	struct task_struct *task;

	__asm__ __volatile__("ld %0,%1(13)"
	: "=r" (task)
	: "i" (offsetof(struct paca_struct, __current)));

	return task;
}
#define current	get_current()

#else

/*
 * We keep `current' in r2 for speed.
 */
register struct task_struct *current asm ("r2");

#endif

#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_CURRENT_H */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
584224e4 DG	2	#ifndef _ASM_POWERPC_CURRENT_H
584224e4 DG	3	#define _ASM_POWERPC_CURRENT_H
88ced031	4	#ifdef __KERNEL__
584224e4 DG	5
584224e4 DG	6	/*
584224e4 DG	7	*/
	8
	9	struct task_struct;
	10
	11	#ifdef __powerpc64__
dbc11f53	12	#include <linux/stddef.h>
584224e4 DG	13	#include <asm/paca.h>
584224e4 DG	14
5fe8e8b8 HD	15	static inline struct task_struct *get_current(void)
	16	{
	17	struct task_struct *task;
	18
	19	__asm__ __volatile__("ld %0,%1(13)"
	20	: "=r" (task)
	21	: "i" (offsetof(struct paca_struct, __current)));
	22
	23	return task;
	24	}
	25	#define current get_current()
584224e4 DG	26
	27	#else
	28
	29	/*
	30	* We keep `current' in r2 for speed.
	31	*/
	32	register struct task_struct *current asm ("r2");
	33
	34	#endif
	35
88ced031	36	#endif /* __KERNEL__ */
584224e4	37	#endif /* _ASM_POWERPC_CURRENT_H */