From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/powerpc/include/asm/current.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/powerpc/include/asm/current.h (limited to 'arch/powerpc/include/asm/current.h') diff --git a/arch/powerpc/include/asm/current.h b/arch/powerpc/include/asm/current.h new file mode 100644 index 000000000..bbfb94800 --- /dev/null +++ b/arch/powerpc/include/asm/current.h @@ -0,0 +1,38 @@ +/* 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 +#include + +static inline struct task_struct *get_current(void) +{ + struct task_struct *task; + + /* get_current can be cached by the compiler, so no volatile */ + asm ("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 */ -- cgit v1.2.3