2 * lzodefs.h -- architecture, OS and compiler specific defines
4 * Copyright (C) 1996-2012 Markus F.X.J. Oberhumer <markus@oberhumer.com>
6 * The full LZO package can be found at:
7 * http://www.oberhumer.com/opensource/lzo/
9 * Changed for Linux kernel use by:
10 * Nitin Gupta <nitingupta910@gmail.com>
11 * Richard Purdie <rpurdie@openedhand.com>
15 #if 1 && defined(__arm__) && ((__LINUX_ARM_ARCH__ >= 6) || defined(__ARM_FEATURE_UNALIGNED))
16 #define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1
17 #define COPY4(dst, src) \
18 * (u32 *) (void *) (dst) = * (const u32 *) (const void *) (src)
20 #define COPY4(dst, src) \
21 put_unaligned(get_unaligned((const u32 *)(src)), (u32 *)(dst))
23 #if defined(__x86_64__)
24 #define COPY8(dst, src) \
25 put_unaligned(get_unaligned((const u64 *)(src)), (u64 *)(dst))
27 #define COPY8(dst, src) \
28 COPY4(dst, src); COPY4((dst) + 4, (src) + 4)
31 #if defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN)
32 #error "conflicting endian definitions"
33 #elif defined(__x86_64__)
34 #define LZO_USE_CTZ64 1
35 #define LZO_USE_CTZ32 1
36 #elif defined(__i386__) || defined(__powerpc__)
37 #define LZO_USE_CTZ32 1
38 #elif defined(__arm__) && (__LINUX_ARM_ARCH__ >= 5)
39 #define LZO_USE_CTZ32 1
42 #define M1_MAX_OFFSET 0x0400
43 #define M2_MAX_OFFSET 0x0800
44 #define M3_MAX_OFFSET 0x4000
45 #define M4_MAX_OFFSET 0xbfff
61 #define lzo_dict_t unsigned short
63 #define D_SIZE (1u << D_BITS)
64 #define D_MASK (D_SIZE - 1)
65 #define D_HIGH ((D_MASK >> 1) + 1)