| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2012 ARM Limited |
| * Copyright (C) 2014 Regents of the University of California |
| * Copyright (C) 2017 SiFive |
| */ |
| |
| #ifndef _ASM_RISCV_VDSO_H |
| #define _ASM_RISCV_VDSO_H |
| |
| /* |
| * All systems with an MMU have a VDSO, but systems without an MMU don't |
| * support shared libraries and therefor don't have one. |
| */ |
| #ifdef CONFIG_MMU |
| |
| #define __VVAR_PAGES 2 |
| |
| #ifndef __ASSEMBLY__ |
| #include <generated/vdso-offsets.h> |
| |
| #define VDSO_SYMBOL(base, name) \ |
| (void __user *)((unsigned long)(base) + __vdso_##name##_offset) |
| #endif /* !__ASSEMBLY__ */ |
| |
| #endif /* CONFIG_MMU */ |
| |
| #endif /* _ASM_RISCV_VDSO_H */ |
