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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_BOOK3S_64_KUP_RADIX_H
#define _ASM_POWERPC_BOOK3S_64_KUP_RADIX_H
#include <linux/jump_label.h>
DECLARE_STATIC_KEY_FALSE(uaccess_flush_key);
/* Prototype for function defined in exceptions-64s.S */
void do_uaccess_flush(void);
static __always_inline void allow_user_access(void __user *to, const void __user *from,
unsigned long size)
{
}
static inline void prevent_user_access(void __user *to, const void __user *from,
unsigned long size)
{
if (static_branch_unlikely(&uaccess_flush_key))
do_uaccess_flush();
}
#endif /* _ASM_POWERPC_BOOK3S_64_KUP_RADIX_H */