/* * lzodefs.h -- architecture, OS and compiler specific defines * * Copyright (C) 1996-2012 Markus F.X.J. Oberhumer * * The full LZO package can be found at: * http://www.oberhumer.com/opensource/lzo/ * * Changed for Linux kernel use by: * Nitin Gupta * Richard Purdie */ #define COPY4(dst, src) \ put_unaligned(get_unaligned((const u32 *)(src)), (u32 *)(dst)) #if defined(__x86_64__) #define COPY8(dst, src) \ put_unaligned(get_unaligned((const u64 *)(src)), (u64 *)(dst)) #else #define COPY8(dst, src) \ COPY4(dst, src); COPY4((dst) + 4, (src) + 4) #endif #if defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN) #error "conflicting endian definitions" #elif defined(__x86_64__) #define LZO_USE_CTZ64 1 #define LZO_USE_CTZ32 1 #elif defined(__i386__) || defined(__powerpc__) #define LZO_USE_CTZ32 1 #elif defined(__arm__) && (__LINUX_ARM_ARCH__ >= 5) #define LZO_USE_CTZ32 1 #endif #define M1_MAX_OFFSET 0x0400 #define M2_MAX_OFFSET 0x0800 #define M3_MAX_OFFSET 0x4000 #define M4_MAX_OFFSET 0xbfff #define M1_MIN_LEN 2 #define M1_MAX_LEN 2 #define M2_MIN_LEN 3 #define M2_MAX_LEN 8 #define M3_MIN_LEN 3 #define M3_MAX_LEN 33 #define M4_MIN_LEN 3 #define M4_MAX_LEN 9 #define M1_MARKER 0 #define M2_MARKER 64 #define M3_MARKER 32 #define M4_MARKER 16 #define lzo_dict_t unsigned short #define D_BITS 13 #define D_SIZE (1u << D_BITS) #define D_MASK (D_SIZE - 1) #define D_HIGH ((D_MASK >> 1) + 1) table>

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