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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * arch/h8300/boot/compressed/misc.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5)  * This is a collection of several routines from gzip-1.0.3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6)  * adapted for Linux.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)  * Adapted for h8300 by Yoshinori Sato 2006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)  * gzip declarations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define OF(args)  args
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #define STATIC static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #undef memset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #undef memcpy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define memzero(s, n)     memset((s), (0), (n))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) extern int _end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static unsigned long free_mem_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static unsigned long free_mem_end_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) extern char input_data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) extern int input_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) extern char output[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define HEAP_SIZE             0x10000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #ifdef CONFIG_KERNEL_GZIP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include "../../../../lib/decompress_inflate.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #ifdef CONFIG_KERNEL_LZO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #include "../../../../lib/decompress_unlzo.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) void *memset(void *s, int c, size_t n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	char *ss = (char *)s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 	for (i = 0; i < n; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) 		ss[i] = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) 	return s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) void *memcpy(void *dest, const void *src, size_t n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) 	char *d = (char *)dest, *s = (char *)src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) 	for (i = 0; i < n; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 		d[i] = s[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) 	return dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static void error(char *x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) 	while (1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 		;	/* Halt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) void decompress_kernel(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 	free_mem_ptr = (unsigned long)&_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }