Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #ifndef __ASM_KASAN_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define __ASM_KASAN_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #ifndef __ASSEMBLY__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <asm/memory.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <asm/mte-kasan.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <asm/pgtable-types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #define arch_kasan_set_tag(addr, tag)	__tag_set(addr, tag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #define arch_kasan_reset_tag(addr)	__tag_reset(addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define arch_kasan_get_tag(addr)	__tag_get(addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #if defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) void kasan_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21)  * KASAN_SHADOW_START: beginning of the kernel virtual addresses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)  * KASAN_SHADOW_END: KASAN_SHADOW_START + 1/N of kernel virtual addresses,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)  * where N = (1 << KASAN_SHADOW_SCALE_SHIFT).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)  * KASAN_SHADOW_OFFSET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)  * This value is used to map an address to the corresponding shadow
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)  * address by the following formula:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)  *     shadow_addr = (address >> KASAN_SHADOW_SCALE_SHIFT) + KASAN_SHADOW_OFFSET
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)  * (1 << (64 - KASAN_SHADOW_SCALE_SHIFT)) shadow addresses that lie in range
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)  * [KASAN_SHADOW_OFFSET, KASAN_SHADOW_END) cover all 64-bits of virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)  * addresses. So KASAN_SHADOW_OFFSET should satisfy the following equation:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)  *      KASAN_SHADOW_OFFSET = KASAN_SHADOW_END -
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34)  *				(1ULL << (64 - KASAN_SHADOW_SCALE_SHIFT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define _KASAN_SHADOW_START(va)	(KASAN_SHADOW_END - (1UL << ((va) - KASAN_SHADOW_SCALE_SHIFT)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define KASAN_SHADOW_START      _KASAN_SHADOW_START(vabits_actual)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) void kasan_copy_shadow(pgd_t *pgdir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) asmlinkage void kasan_early_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static inline void kasan_init(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static inline void kasan_copy_shadow(pgd_t *pgdir) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #endif