1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_X86_VSYSCALL_H
3 #define _ASM_X86_VSYSCALL_H
5 #include <linux/seqlock.h>
6 #include <uapi/asm/vsyscall.h>
8 #ifdef CONFIG_X86_VSYSCALL_EMULATION
9 extern void map_vsyscall(void);
12 * Called on instruction fetch fault in vsyscall page.
13 * Returns true if handled.
15 extern bool emulate_vsyscall(struct pt_regs *regs, unsigned long address);
17 static inline void map_vsyscall(void) {}
18 static inline bool emulate_vsyscall(struct pt_regs *regs, unsigned long address)
24 #endif /* _ASM_X86_VSYSCALL_H */