1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright (C) 2012 ARM Limited
4 * Copyright (C) 2014 Regents of the University of California
5 * Copyright (C) 2017 SiFive
8 #ifndef _ASM_RISCV_VDSO_H
9 #define _ASM_RISCV_VDSO_H
13 * All systems with an MMU have a VDSO, but systems without an MMU don't
14 * support shared libraries and therefor don't have one.
18 #include <linux/types.h>
20 * All systems with an MMU have a VDSO, but systems without an MMU don't
21 * support shared libraries and therefor don't have one.
25 #define __VVAR_PAGES 1
28 #include <generated/vdso-offsets.h>
30 #define VDSO_SYMBOL(base, name) \
31 (void __user *)((unsigned long)(base) + __vdso_##name##_offset)
33 #endif /* CONFIG_MMU */
35 #endif /* !__ASSEMBLY__ */
37 #endif /* CONFIG_MMU */
39 #endif /* _ASM_RISCV_VDSO_H */