powerpc/math-emu: Use kernel generic math-emu code

The math emulation code is centered around a set of generic macros that
provide the core of the emulation that are shared by the various
architectures and other projects (like glibc).  Each arch implements its
own sfp-machine.h to specific various arch specific details.

For historic reasons that are now lost the powerpc math-emu code had
its own version of the common headers.  This moves us to using the
kernel generic version and thus getting fixes when those are updated.

Also cleaned up exception/error reporting from the FP emulation functions.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

1 files changed, 0 insertions, 129 deletions

diff --git a/arch/powerpc/math-emu/double.h b/arch/powerpc/math-emu/double.h
deleted file mode 100644
index ffba8b67f059..000000000000
--- a/arch/powerpc/math-emu/double.h
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Definitions for IEEE Double Precision
- */
-
-#if _FP_W_TYPE_SIZE < 32
-#error "Here's a nickel kid.  Go buy yourself a real computer."
-#endif
-
-#if _FP_W_TYPE_SIZE < 64
-#define _FP_FRACTBITS_D         (2 * _FP_W_TYPE_SIZE)
-#else
-#define _FP_FRACTBITS_D         _FP_W_TYPE_SIZE
-#endif
-
-#define _FP_FRACBITS_D          53
-#define _FP_FRACXBITS_D         (_FP_FRACTBITS_D - _FP_FRACBITS_D)
-#define _FP_WFRACBITS_D         (_FP_WORKBITS + _FP_FRACBITS_D)
-#define _FP_WFRACXBITS_D        (_FP_FRACTBITS_D - _FP_WFRACBITS_D)
-#define _FP_EXPBITS_D           11
-#define _FP_EXPBIAS_D           1023
-#define _FP_EXPMAX_D            2047
-
-#define _FP_QNANBIT_D           \
-        ((_FP_W_TYPE)1 << ((_FP_FRACBITS_D-2) % _FP_W_TYPE_SIZE))
-#define _FP_IMPLBIT_D           \
-        ((_FP_W_TYPE)1 << ((_FP_FRACBITS_D-1) % _FP_W_TYPE_SIZE))
-#define _FP_OVERFLOW_D          \
-        ((_FP_W_TYPE)1 << (_FP_WFRACBITS_D % _FP_W_TYPE_SIZE))
-
-#if _FP_W_TYPE_SIZE < 64
-
-union _FP_UNION_D
-{
-  double flt;
-  struct {
-#if __BYTE_ORDER == __BIG_ENDIAN
-    unsigned sign  : 1;
-    unsigned exp   : _FP_EXPBITS_D;
-    unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE;
-    unsigned frac0 : _FP_W_TYPE_SIZE;
-#else
-    unsigned frac0 : _FP_W_TYPE_SIZE;
-    unsigned frac1 : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0) - _FP_W_TYPE_SIZE;
-    unsigned exp   : _FP_EXPBITS_D;
-    unsigned sign  : 1;
-#endif
-  } bits __attribute__((packed));
-};
-
-#define FP_DECL_D(X)            _FP_DECL(2,X)
-#define FP_UNPACK_RAW_D(X,val)  _FP_UNPACK_RAW_2(D,X,val)
-#define FP_PACK_RAW_D(val,X)    _FP_PACK_RAW_2(D,val,X)
-
-#define FP_UNPACK_D(X,val)              \
-  do {                                  \
-    _FP_UNPACK_RAW_2(D,X,val);          \
-    _FP_UNPACK_CANONICAL(D,2,X);        \
-  } while (0)
-
-#define FP_PACK_D(val,X)                \
-  do {                                  \
-    _FP_PACK_CANONICAL(D,2,X);          \
-    _FP_PACK_RAW_2(D,val,X);            \
-  } while (0)
-
-#define FP_NEG_D(R,X)           _FP_NEG(D,2,R,X)
-#define FP_ADD_D(R,X,Y)         _FP_ADD(D,2,R,X,Y)
-#define FP_SUB_D(R,X,Y)         _FP_SUB(D,2,R,X,Y)
-#define FP_MUL_D(R,X,Y)         _FP_MUL(D,2,R,X,Y)
-#define FP_DIV_D(R,X,Y)         _FP_DIV(D,2,R,X,Y)
-#define FP_SQRT_D(R,X)          _FP_SQRT(D,2,R,X)
-
-#define FP_CMP_D(r,X,Y,un)      _FP_CMP(D,2,r,X,Y,un)
-#define FP_CMP_EQ_D(r,X,Y)      _FP_CMP_EQ(D,2,r,X,Y)
-
-#define FP_TO_INT_D(r,X,rsz,rsg)  _FP_TO_INT(D,2,r,X,rsz,rsg)
-#define FP_FROM_INT_D(X,r,rs,rt)  _FP_FROM_INT(D,2,X,r,rs,rt)
-
-#else
-
-union _FP_UNION_D
-{
-  double flt;
-  struct {
-#if __BYTE_ORDER == __BIG_ENDIAN
-    unsigned sign : 1;
-    unsigned exp  : _FP_EXPBITS_D;
-    unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);
-#else
-    unsigned long frac : _FP_FRACBITS_D - (_FP_IMPLBIT_D != 0);
-    unsigned exp  : _FP_EXPBITS_D;
-    unsigned sign : 1;
-#endif
-  } bits __attribute__((packed));
-};
-
-#define FP_DECL_D(X)            _FP_DECL(1,X)
-#define FP_UNPACK_RAW_D(X,val)  _FP_UNPACK_RAW_1(D,X,val)
-#define FP_PACK_RAW_D(val,X)    _FP_PACK_RAW_1(D,val,X)
-
-#define FP_UNPACK_D(X,val)              \
-  do {                                  \
-    _FP_UNPACK_RAW_1(D,X,val);          \
-    _FP_UNPACK_CANONICAL(D,1,X);        \
-  } while (0)
-
-#define FP_PACK_D(val,X)                \
-  do {                                  \
-    _FP_PACK_CANONICAL(D,1,X);          \
-    _FP_PACK_RAW_1(D,val,X);            \
-  } while (0)
-
-#define FP_NEG_D(R,X)           _FP_NEG(D,1,R,X)
-#define FP_ADD_D(R,X,Y)         _FP_ADD(D,1,R,X,Y)
-#define FP_SUB_D(R,X,Y)         _FP_SUB(D,1,R,X,Y)
-#define FP_MUL_D(R,X,Y)         _FP_MUL(D,1,R,X,Y)
-#define FP_DIV_D(R,X,Y)         _FP_DIV(D,1,R,X,Y)
-#define FP_SQRT_D(R,X)          _FP_SQRT(D,1,R,X)
-
-/* The implementation of _FP_MUL_D and _FP_DIV_D should be chosen by
-   the target machine.  */
-
-#define FP_CMP_D(r,X,Y,un)      _FP_CMP(D,1,r,X,Y,un)
-#define FP_CMP_EQ_D(r,X,Y)      _FP_CMP_EQ(D,1,r,X,Y)
-
-#define FP_TO_INT_D(r,X,rsz,rsg)  _FP_TO_INT(D,1,r,X,rsz,rsg)
-#define FP_FROM_INT_D(X,r,rs,rt)  _FP_FROM_INT(D,1,X,r,rs,rt)
-
-#endif /* W_TYPE_SIZE < 64 */