diff options
Diffstat (limited to 'arch/loongarch/include/asm/percpu.h')
| -rw-r--r-- | arch/loongarch/include/asm/percpu.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/percpu.h b/arch/loongarch/include/asm/percpu.h new file mode 100644 index 000000000000..b03d8f8b9fd3 --- /dev/null +++ b/arch/loongarch/include/asm/percpu.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020-2022 Loongson Technology Corporation Limited + */ +#ifndef __ASM_PERCPU_H +#define __ASM_PERCPU_H + +/* Use r21 for fast access */ +register unsigned long __my_cpu_offset __asm__("$r21"); + +static inline void set_my_cpu_offset(unsigned long off) +{ + __my_cpu_offset = off; + csr_write64(off, PERCPU_BASE_KS); +} +#define __my_cpu_offset __my_cpu_offset + +#include <asm-generic/percpu.h> + +#endif /* __ASM_PERCPU_H */ |