diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/csky/abiv2/inc/abi/vdso.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/csky/abiv2/inc/abi/vdso.h b/arch/csky/abiv2/inc/abi/vdso.h new file mode 100644 index 000000000..b60d4a070 --- /dev/null +++ b/arch/csky/abiv2/inc/abi/vdso.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef __ABI_CSKY_VDSO_H +#define __ABI_CSKY_VDSO_H + +#include <linux/uaccess.h> + +static inline int setup_vdso_page(unsigned short *ptr) +{ + int err = 0; + + /* movi r7, 173 */ + err |= __put_user(0xea07, ptr); + err |= __put_user(0x008b, ptr+1); + + /* trap 0 */ + err |= __put_user(0xc000, ptr+2); + err |= __put_user(0x2020, ptr+3); + + return err; +} + +#endif /* __ABI_CSKY_STRING_H */ |