1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Author: Yun Liu <liuyun@loongson.cn>
 4 *         Huacai Chen <chenhuacai@loongson.cn>
 5 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
 6 */
 7
 8#include <asm/efi.h>
 9#include <asm/addrspace.h>
10#include "efistub.h"
11#include "loongarch-stub.h"
12
13extern int kernel_asize;
14extern int kernel_fsize;
15extern int kernel_entry;
16
17efi_status_t handle_kernel_image(unsigned long *image_addr,
18				 unsigned long *image_size,
19				 unsigned long *reserve_addr,
20				 unsigned long *reserve_size,
21				 efi_loaded_image_t *image,
22				 efi_handle_t image_handle)
23{
24	efi_status_t status;
25	unsigned long kernel_addr = 0;
26
27	kernel_addr = (unsigned long)image->image_base;
28
29	status = efi_relocate_kernel(&kernel_addr, kernel_fsize, kernel_asize,
30		     EFI_KIMG_PREFERRED_ADDRESS, efi_get_kimg_min_align(), 0x0);
31
32	*image_addr = kernel_addr;
33	*image_size = kernel_asize;
34
35	return status;
36}
37
38unsigned long kernel_entry_address(unsigned long kernel_addr,
39		efi_loaded_image_t *image)
40{
41	unsigned long base = (unsigned long)image->image_base;
42
43	return (unsigned long)&kernel_entry - base + kernel_addr;
44}