/* SPDX-License-Identifier: GPL-2.0 */

#ifndef __ASM_IMAGE_H
#define __ASM_IMAGE_H

#define ARM64_IMAGE_MAGIC       "ARM\x64"

#define ARM64_IMAGE_FLAG_BE_SHIFT               0
#define ARM64_IMAGE_FLAG_PAGE_SIZE_SHIFT        (ARM64_IMAGE_FLAG_BE_SHIFT + 1)
#define ARM64_IMAGE_FLAG_PHYS_BASE_SHIFT \
                                        (ARM64_IMAGE_FLAG_PAGE_SIZE_SHIFT + 2)
#define ARM64_IMAGE_FLAG_BE_MASK                0x1
#define ARM64_IMAGE_FLAG_PAGE_SIZE_MASK         0x3
#define ARM64_IMAGE_FLAG_PHYS_BASE_MASK         0x1

#define ARM64_IMAGE_FLAG_LE                     0
#define ARM64_IMAGE_FLAG_BE                     1
#define ARM64_IMAGE_FLAG_PAGE_SIZE_4K           1
#define ARM64_IMAGE_FLAG_PAGE_SIZE_16K          2
#define ARM64_IMAGE_FLAG_PAGE_SIZE_64K          3
#define ARM64_IMAGE_FLAG_PHYS_BASE              1

#ifndef __ASSEMBLER__

#define arm64_image_flag_field(flags, field) \
                                (((flags) >> field##_SHIFT) & field##_MASK)

/*
 * struct arm64_image_header - arm64 kernel image header
 * See Documentation/arch/arm64/booting.rst for details
 *
 * @code0:              Executable code, or
 *   @mz_header           alternatively used for part of MZ header
 * @code1:              Executable code
 * @text_offset:        Image load offset
 * @image_size:         Effective Image size
 * @flags:              kernel flags
 * @reserved:           reserved
 * @magic:              Magic number
 * @reserved5:          reserved, or
 *   @pe_header:          alternatively used for PE COFF offset
 */

struct arm64_image_header {
        __le32 code0;
        __le32 code1;
        __le64 text_offset;
        __le64 image_size;
        __le64 flags;
        __le64 res2;
        __le64 res3;
        __le64 res4;
        __le32 magic;
        __le32 res5;
};

#endif /* __ASSEMBLER__ */

#endif /* __ASM_IMAGE_H */