[ARM] 3118/1: fix and reenable nwfpe extended precision emulation for big-endian
Patch from Lennert Buytenhek
nwfpe extended precision emulation used to be broken on big-endian
and was therefore disabled. This patch fixes nwfpe so that it copies
extended precision floats to/from userspace in the proper word order
(similar to patch #2046, see the description of that patch for an
explanation) and reenables the Kconfig option.
Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/nwfpe/softfloat.h b/arch/arm/nwfpe/softfloat.h
index 1301d97..978c699 100644
--- a/arch/arm/nwfpe/softfloat.h
+++ b/arch/arm/nwfpe/softfloat.h
@@ -51,12 +51,17 @@
Software IEC/IEEE floating-point types.
-------------------------------------------------------------------------------
*/
-typedef unsigned long int float32;
-typedef unsigned long long float64;
+typedef u32 float32;
+typedef u64 float64;
typedef struct {
- unsigned short high;
- unsigned short __padding;
- unsigned long long low;
+#ifdef __ARMEB__
+ u16 __padding;
+ u16 high;
+#else
+ u16 high;
+ u16 __padding;
+#endif
+ u64 low;
} floatx80;
/*