1 // SPDX-License-Identifier: GPL-2.0
3 * arch/m32r/boot/compressed/misc.c
5 * This is a collection of several routines from gzip-1.0.3
8 * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
10 * Adapted for SH by Stuart Menefy, Aug 1999
12 * 2003-02-12: Support M32R by Takeo Takahashi
22 #define memzero(s, n) memset ((s), 0, (n))
24 static void error(char *m);
28 static unsigned long free_mem_ptr;
29 static unsigned long free_mem_end_ptr;
31 #ifdef CONFIG_KERNEL_BZIP2
32 void *memset(void *s, int c, size_t n)
42 #ifdef CONFIG_KERNEL_GZIP
43 void *memcpy(void *dest, const void *src, size_t n)
53 #define BOOT_HEAP_SIZE 0x10000
54 #include "../../../../lib/decompress_inflate.c"
57 #ifdef CONFIG_KERNEL_BZIP2
58 #define BOOT_HEAP_SIZE 0x400000
59 #include "../../../../lib/decompress_bunzip2.c"
62 #ifdef CONFIG_KERNEL_LZMA
63 #define BOOT_HEAP_SIZE 0x10000
64 #include "../../../../lib/decompress_unlzma.c"
67 static void error(char *x)
71 puts("\n\n -- System halted");
77 decompress_kernel(int mmu_on, unsigned char *zimage_data,
78 unsigned int zimage_len, unsigned long heap)
80 unsigned char *input_data = zimage_data;
81 int input_len = zimage_len;
82 unsigned char *output_data;
84 output_data = (unsigned char *)CONFIG_MEMORY_START + 0x2000
85 + (mmu_on ? 0x80000000 : 0);
87 free_mem_end_ptr = free_mem_ptr + BOOT_HEAP_SIZE;
89 puts("\nDecompressing Linux... ");
90 __decompress(input_data, input_len, NULL, NULL, output_data, 0,
92 puts("done.\nBooting the kernel.\n");