/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_KASAN_H #define __ASM_KASAN_H #ifdef CONFIG_KASAN #define KASAN_SHADOW_SCALE_SHIFT 3 #ifdef CONFIG_KASAN_S390_4_LEVEL_PAGING #define KASAN_SHADOW_SIZE \ (_AC(1, UL) << (_REGION1_SHIFT - KASAN_SHADOW_SCALE_SHIFT)) #else #define KASAN_SHADOW_SIZE \ (_AC(1, UL) << (_REGION2_SHIFT - KASAN_SHADOW_SCALE_SHIFT)) #endif #define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL) #define KASAN_SHADOW_START KASAN_SHADOW_OFFSET #define KASAN_SHADOW_END (KASAN_SHADOW_START + KASAN_SHADOW_SIZE) extern void kasan_early_init(void); extern void kasan_copy_shadow(pgd_t *dst); extern void kasan_free_early_identity(void); #else static inline void kasan_early_init(void) { } static inline void kasan_copy_shadow(pgd_t *dst) { } static inline void kasan_free_early_identity(void) { } #endif #endif