/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SKEY_H
#define __ASM_SKEY_H

#include <asm/rwonce.h>

struct skey_region {
        unsigned long start;
        unsigned long end;
};

#define SKEY_REGION(_start, _end)                       \
        stringify_in_c(.section .skey_region,"a";)      \
        stringify_in_c(.balign 8;)                      \
        stringify_in_c(.quad (_start);)                 \
        stringify_in_c(.quad (_end);)                   \
        stringify_in_c(.previous)

extern int skey_regions_initialized;
extern struct skey_region __skey_region_start[];
extern struct skey_region __skey_region_end[];

void __skey_regions_initialize(void);

static inline void skey_regions_initialize(void)
{
        if (READ_ONCE(skey_regions_initialized))
                return;
        __skey_regions_initialize();
}

#endif /* __ASM_SKEY_H */