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author | Ralf Baechle <ralf@linux-mips.org> | 2014-04-16 00:40:02 +0200 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2014-05-21 11:12:46 +0200 |
commit | f80cc08d78556bdc66bf0b75ec412688d8ec6907 (patch) | |
tree | 28b83c6c811db53cd1f683253a2473f731627f02 /arch | |
parent | 64a17a0ff19a938e1246474666635219f2c3bc15 (diff) | |
download | linux-stable-f80cc08d78556bdc66bf0b75ec412688d8ec6907.tar.gz linux-stable-f80cc08d78556bdc66bf0b75ec412688d8ec6907.tar.bz2 linux-stable-f80cc08d78556bdc66bf0b75ec412688d8ec6907.zip |
MIPS: math-emu: Use __BITFIELD_FIELD to eleminate redundant definitions.
Union _ieee754sp was even duplicated even though there are no endian
dependencies in it all.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/mips/math-emu/ieee754.h | 86 |
1 files changed, 23 insertions, 63 deletions
diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h index 22796e012060..fe61d16cf644 100644 --- a/arch/mips/math-emu/ieee754.h +++ b/arch/mips/math-emu/ieee754.h @@ -27,6 +27,7 @@ #include <asm/byteorder.h> #include <linux/types.h> #include <linux/sched.h> +#include <asm/bitfield.h> /* * Not very pretty, but the Linux kernel's normal va_list definition @@ -36,60 +37,31 @@ #include <stdarg.h> #endif -#ifdef __LITTLE_ENDIAN struct ieee754dp_konst { - unsigned mantlo:32; - unsigned manthi:20; - unsigned bexp:11; - unsigned sign:1; -}; -struct ieee754sp_konst { - unsigned mant:23; - unsigned bexp:8; - unsigned sign:1; + __BITFIELD_FIELD(unsigned sign:1, + __BITFIELD_FIELD(unsigned bexp:11, + __BITFIELD_FIELD(unsigned manthi:20, + __BITFIELD_FIELD(unsigned mantlo:32, + ;)))) }; typedef union _ieee754dp { struct ieee754dp_konst oparts; struct { - u64 mant:52; - unsigned int bexp:11; - unsigned int sign:1; - } parts; - u64 bits; - double d; -} ieee754dp; - -typedef union _ieee754sp { - struct ieee754sp_konst parts; - float f; - u32 bits; -} ieee754sp; -#endif - -#ifdef __BIG_ENDIAN -struct ieee754dp_konst { - unsigned sign:1; - unsigned bexp:11; - unsigned manthi:20; - unsigned mantlo:32; -}; - -typedef union _ieee754dp { - struct ieee754dp_konst oparts; - struct { - unsigned int sign:1; - unsigned int bexp:11; - u64 mant:52; + __BITFIELD_FIELD(unsigned int sign:1, + __BITFIELD_FIELD(unsigned int bexp:11, + __BITFIELD_FIELD(u64 mant:52, + ;))) } parts; double d; u64 bits; } ieee754dp; struct ieee754sp_konst { - unsigned sign:1; - unsigned bexp:8; - unsigned mant:23; + __BITFIELD_FIELD(unsigned sign:1, + __BITFIELD_FIELD(unsigned bexp:8, + __BITFIELD_FIELD(unsigned mant:23, + ;))) }; typedef union _ieee754sp { @@ -97,7 +69,6 @@ typedef union _ieee754sp { float f; u32 bits; } ieee754sp; -#endif /* * single precision (often aka float) @@ -307,26 +278,15 @@ char *ieee754dp_tstr(ieee754dp x, int prec, int fmt, int af); * The control status register */ struct _ieee754_csr { -#ifdef __BIG_ENDIAN - unsigned pad0:7; - unsigned nod:1; /* set 1 for no denormalised numbers */ - unsigned c:1; /* condition */ - unsigned pad1:5; - unsigned cx:6; /* exceptions this operation */ - unsigned mx:5; /* exception enable mask */ - unsigned sx:5; /* exceptions total */ - unsigned rm:2; /* current rounding mode */ -#endif -#ifdef __LITTLE_ENDIAN - unsigned rm:2; /* current rounding mode */ - unsigned sx:5; /* exceptions total */ - unsigned mx:5; /* exception enable mask */ - unsigned cx:6; /* exceptions this operation */ - unsigned pad1:5; - unsigned c:1; /* condition */ - unsigned nod:1; /* set 1 for no denormalised numbers */ - unsigned pad0:7; -#endif + __BITFIELD_FIELD(unsigned pad0:7, + __BITFIELD_FIELD(unsigned nod:1, /* set 1 for no denormalised numbers */ + __BITFIELD_FIELD(unsigned c:1, /* condition */ + __BITFIELD_FIELD(unsigned pad1:5, + __BITFIELD_FIELD(unsigned cx:6, /* exceptions this operation */ + __BITFIELD_FIELD(unsigned mx:5, /* exception enable mask */ + __BITFIELD_FIELD(unsigned sx:5, /* exceptions total */ + __BITFIELD_FIELD(unsigned rm:2, /* current rounding mode */ + ;)))))))) }; #define ieee754_csr (*(struct _ieee754_csr *)(¤t->thread.fpu.fcr31)) |