^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/sh/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 SH by Stuart Menefy, Aug 1999
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/uaccess.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <asm/addrspace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * gzip declarations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #define STATIC static
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #undef memset
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #undef memcpy
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define memzero(s, n) memset ((s), 0, (n))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /* cache.c */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define CACHE_ENABLE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define CACHE_DISABLE 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int cache_control(unsigned int command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) extern char input_data[];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) extern int input_len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static unsigned char *output;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static void error(char *m);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) int puts(const char *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) extern int _text; /* Defined in vmlinux.lds.S */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) extern int _end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static unsigned long free_mem_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) static unsigned long free_mem_end_ptr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) #ifdef CONFIG_HAVE_KERNEL_BZIP2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define HEAP_SIZE 0x400000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define HEAP_SIZE 0x10000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #ifdef CONFIG_KERNEL_GZIP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #include "../../../../lib/decompress_inflate.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #ifdef CONFIG_KERNEL_BZIP2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) #include "../../../../lib/decompress_bunzip2.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #ifdef CONFIG_KERNEL_LZMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #include "../../../../lib/decompress_unlzma.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #ifdef CONFIG_KERNEL_XZ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #include "../../../../lib/decompress_unxz.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #ifdef CONFIG_KERNEL_LZO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #include "../../../../lib/decompress_unlzo.c"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int puts(const char *s)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) /* This should be updated to use the sh-sci routines */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) void* memset(void* s, int c, size_t n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) char *ss = (char*)s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) for (i=0;i<n;i++) ss[i] = c;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) void* memcpy(void* __dest, __const void* __src,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) size_t __n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) char *d = (char *)__dest, *s = (char *)__src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) for (i=0;i<__n;i++) d[i] = s[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) return __dest;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static void error(char *x)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) puts("\n\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) puts(x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) puts("\n\n -- System halted");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) while(1); /* Halt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) const unsigned long __stack_chk_guard = 0x000a0dff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) void __stack_chk_fail(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) error("stack-protector: Kernel stack is corrupted\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /* Needed because vmlinux.lds.h references this */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) void ftrace_stub(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define stackalign 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #define STACK_SIZE (4096)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) long __attribute__ ((aligned(stackalign))) user_stack[STACK_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) long *stack_start = &user_stack[STACK_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) void decompress_kernel(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) unsigned long output_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) output_addr = __pa((unsigned long)&_text+PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #if defined(CONFIG_29BIT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) output_addr |= P2SEG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) output = (unsigned char *)output_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) free_mem_ptr = (unsigned long)&_end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) puts("Uncompressing Linux... ");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) cache_control(CACHE_ENABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) cache_control(CACHE_DISABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) puts("Ok, booting the kernel.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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