From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/unicore32/boot/compressed/misc.c | 126 +++++++++++++++++++++++++++ 1 file changed, 126 insertions(+) create mode 100644 kernel/arch/unicore32/boot/compressed/misc.c (limited to 'kernel/arch/unicore32/boot/compressed/misc.c') diff --git a/kernel/arch/unicore32/boot/compressed/misc.c b/kernel/arch/unicore32/boot/compressed/misc.c new file mode 100644 index 000000000..176d5bda3 --- /dev/null +++ b/kernel/arch/unicore32/boot/compressed/misc.c @@ -0,0 +1,126 @@ +/* + * linux/arch/unicore32/boot/compressed/misc.c + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include + +/* + * gzip delarations + */ +unsigned char *output_data; +unsigned long output_ptr; + +unsigned int free_mem_ptr; +unsigned int free_mem_end_ptr; + +#define STATIC static +#define STATIC_RW_DATA /* non-static please */ + +/* + * arch-dependent implementations + */ +#ifndef ARCH_HAVE_DECOMP_ERROR +#define arch_decomp_error(x) +#endif + +#ifndef ARCH_HAVE_DECOMP_SETUP +#define arch_decomp_setup() +#endif + +#ifndef ARCH_HAVE_DECOMP_PUTS +#define arch_decomp_puts(p) +#endif + +void *memcpy(void *dest, const void *src, size_t n) +{ + int i = 0; + unsigned char *d = (unsigned char *)dest, *s = (unsigned char *)src; + + for (i = n >> 3; i > 0; i--) { + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + } + + if (n & 1 << 2) { + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + *d++ = *s++; + } + + if (n & 1 << 1) { + *d++ = *s++; + *d++ = *s++; + } + + if (n & 1) + *d++ = *s++; + + return dest; +} + +void error(char *x) +{ + arch_decomp_puts("\n\n"); + arch_decomp_puts(x); + arch_decomp_puts("\n\n -- System halted"); + + arch_decomp_error(x); + + for (;;) + ; /* Halt */ +} + +/* Heap size should be adjusted for different decompress method */ +#ifdef CONFIG_KERNEL_GZIP +#include "../../../../lib/decompress_inflate.c" +#endif + +#ifdef CONFIG_KERNEL_BZIP2 +#include "../../../../lib/decompress_bunzip2.c" +#endif + +#ifdef CONFIG_KERNEL_LZO +#include "../../../../lib/decompress_unlzo.c" +#endif + +#ifdef CONFIG_KERNEL_LZMA +#include "../../../../lib/decompress_unlzma.c" +#endif + +unsigned long decompress_kernel(unsigned long output_start, + unsigned long free_mem_ptr_p, + unsigned long free_mem_ptr_end_p) +{ + unsigned char *tmp; + + output_data = (unsigned char *)output_start; + free_mem_ptr = free_mem_ptr_p; + free_mem_end_ptr = free_mem_ptr_end_p; + + arch_decomp_setup(); + + tmp = (unsigned char *) (((unsigned long)input_data_end) - 4); + output_ptr = get_unaligned_le32(tmp); + + arch_decomp_puts("Uncompressing Linux..."); + decompress(input_data, input_data_end - input_data, NULL, NULL, + output_data, NULL, error); + arch_decomp_puts(" done, booting the kernel.\n"); + return output_ptr; +} -- cgit 1.2.3-korg