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Diffstat (limited to 'arch/microblaze/include/asm/current.h')
| -rw-r--r-- | arch/microblaze/include/asm/current.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h new file mode 100644 index 000000000..a4bb45be3 --- /dev/null +++ b/arch/microblaze/include/asm/current.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> + * Copyright (C) 2008-2009 PetaLogix + * Copyright (C) 2006 Atmark Techno, Inc. + */ + +#ifndef _ASM_MICROBLAZE_CURRENT_H +#define _ASM_MICROBLAZE_CURRENT_H + +/* + * Register used to hold the current task pointer while in the kernel. + * Any `call clobbered' register without a special meaning should be OK, + * but check asm/microblaze/kernel/entry.S to be sure. + */ +#define CURRENT_TASK r31 +# ifndef __ASSEMBLY__ +/* + * Dedicate r31 to keeping the current task pointer + */ +register struct task_struct *current asm("r31"); + +# define get_current() current +# endif /* __ASSEMBLY__ */ + +#endif /* _ASM_MICROBLAZE_CURRENT_H */ |