diff options
Diffstat (limited to 'arch/loongarch/include/asm')
| -rw-r--r-- | arch/loongarch/include/asm/image.h | 52 | ||||
| -rw-r--r-- | arch/loongarch/include/asm/inst.h | 5 | ||||
| -rw-r--r-- | arch/loongarch/include/asm/kexec.h | 12 |
3 files changed, 69 insertions, 0 deletions
diff --git a/arch/loongarch/include/asm/image.h b/arch/loongarch/include/asm/image.h new file mode 100644 index 000000000000..cab981cdb72a --- /dev/null +++ b/arch/loongarch/include/asm/image.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * LoongArch binary image header for EFI(PE/COFF) format. + * + * Author: Youling Tang <tangyouling@kylinos.cn> + * Copyright (C) 2025 KylinSoft Corporation. + */ + +#ifndef __ASM_IMAGE_H +#define __ASM_IMAGE_H + +#ifndef __ASSEMBLER__ + +/** + * struct loongarch_image_header + * + * @dos_sig: Optional PE format 'MZ' signature. + * @padding_1: Reserved. + * @kernel_entry: Kernel image entry pointer. + * @kernel_asize: An estimated size of the memory image size in LSB byte order. + * @text_offset: The image load offset in LSB byte order. + * @padding_2: Reserved. + * @pe_header: Optional offset to a PE format header. + **/ + +struct loongarch_image_header { + uint8_t dos_sig[2]; + uint16_t padding_1[3]; + uint64_t kernel_entry; + uint64_t kernel_asize; + uint64_t text_offset; + uint32_t padding_2[7]; + uint32_t pe_header; +}; + +/* + * loongarch_header_check_dos_sig - Helper to check the header + * + * Returns true (non-zero) if 'MZ' signature is found. + */ + +static inline int loongarch_header_check_dos_sig(const struct loongarch_image_header *h) +{ + if (!h) + return 0; + + return (h->dos_sig[0] == 'M' && h->dos_sig[1] == 'Z'); +} + +#endif /* __ASSEMBLER__ */ + +#endif /* __ASM_IMAGE_H */ diff --git a/arch/loongarch/include/asm/inst.h b/arch/loongarch/include/asm/inst.h index 277d2140676b..55e64a12a124 100644 --- a/arch/loongarch/include/asm/inst.h +++ b/arch/loongarch/include/asm/inst.h @@ -77,6 +77,10 @@ enum reg2_op { iocsrwrh_op = 0x19205, iocsrwrw_op = 0x19206, iocsrwrd_op = 0x19207, + llacqw_op = 0xe15e0, + screlw_op = 0xe15e1, + llacqd_op = 0xe15e2, + screld_op = 0xe15e3, }; enum reg2i5_op { @@ -189,6 +193,7 @@ enum reg3_op { fldxd_op = 0x7068, fstxs_op = 0x7070, fstxd_op = 0x7078, + scq_op = 0x70ae, amswapw_op = 0x70c0, amswapd_op = 0x70c1, amaddw_op = 0x70c2, diff --git a/arch/loongarch/include/asm/kexec.h b/arch/loongarch/include/asm/kexec.h index cf95cd3eb2de..209fa43222e1 100644 --- a/arch/loongarch/include/asm/kexec.h +++ b/arch/loongarch/include/asm/kexec.h @@ -41,6 +41,18 @@ struct kimage_arch { unsigned long systable_ptr; }; +#ifdef CONFIG_KEXEC_FILE +extern const struct kexec_file_ops kexec_efi_ops; +extern const struct kexec_file_ops kexec_elf_ops; + +int arch_kimage_file_post_load_cleanup(struct kimage *image); +#define arch_kimage_file_post_load_cleanup arch_kimage_file_post_load_cleanup + +extern int load_other_segments(struct kimage *image, + unsigned long kernel_load_addr, unsigned long kernel_size, + char *initrd, unsigned long initrd_len, char *cmdline, unsigned long cmdline_len); +#endif + typedef void (*do_kexec_t)(unsigned long efi_boot, unsigned long cmdline_ptr, unsigned long systable_ptr, |