Fedora kernel-2.6.17-1.2142_FC4 patched with stable patch-2.6.17.4-vs2.0.2-rc26.diff

[linux-2.6.git] / arch / arm / nwfpe / fpa11_cpdt.c

diff --git a/arch/arm/nwfpe/fpa11_cpdt.c b/arch/arm/nwfpe/fpa11_cpdt.c
index 95fb63f..32859fa 100644 (file)
--- a/arch/arm/nwfpe/fpa11_cpdt.c
+++ b/arch/arm/nwfpe/fpa11_cpdt.c
@@ -59,8 +59,13 @@ static inline void loadExtended(const unsigned int Fn, const unsigned int __user
        p = (unsigned int *) &fpa11->fpreg[Fn].fExtended;
        fpa11->fType[Fn] = typeExtended;
        get_user(p[0], &pMem[0]);       /* sign & exponent */
+#ifdef __ARMEB__
+       get_user(p[1], &pMem[1]);       /* ms bits */
+       get_user(p[2], &pMem[2]);       /* ls bits */
+#else
        get_user(p[1], &pMem[2]);       /* ls bits */
        get_user(p[2], &pMem[1]);       /* ms bits */
+#endif
 }
 #endif
 
@@ -96,7 +101,7 @@ static inline void loadMultiple(const unsigned int Fn, const unsigned int __user
        }
 }
 
-static inline void storeSingle(const unsigned int Fn, unsigned int __user *pMem)
+static inline void storeSingle(struct roundingData *roundData, const unsigned int Fn, unsigned int __user *pMem)
 {
        FPA11 *fpa11 = GET_FPA11();
        union {
@@ -106,12 +111,12 @@ static inline void storeSingle(const unsigned int Fn, unsigned int __user *pMem)
 
        switch (fpa11->fType[Fn]) {
        case typeDouble:
-               val.f = float64_to_float32(fpa11->fpreg[Fn].fDouble);
+               val.f = float64_to_float32(roundData, fpa11->fpreg[Fn].fDouble);
                break;
 
 #ifdef CONFIG_FPE_NWFPE_XP
        case typeExtended:
-               val.f = floatx80_to_float32(fpa11->fpreg[Fn].fExtended);
+               val.f = floatx80_to_float32(roundData, fpa11->fpreg[Fn].fExtended);
                break;
 #endif
 
@@ -122,7 +127,7 @@ static inline void storeSingle(const unsigned int Fn, unsigned int __user *pMem)
        put_user(val.i[0], pMem);
 }
 
-static inline void storeDouble(const unsigned int Fn, unsigned int __user *pMem)
+static inline void storeDouble(struct roundingData *roundData, const unsigned int Fn, unsigned int __user *pMem)
 {
        FPA11 *fpa11 = GET_FPA11();
        union {
@@ -137,7 +142,7 @@ static inline void storeDouble(const unsigned int Fn, unsigned int __user *pMem)
 
 #ifdef CONFIG_FPE_NWFPE_XP
        case typeExtended:
-               val.f = floatx80_to_float64(fpa11->fpreg[Fn].fExtended);
+               val.f = floatx80_to_float64(roundData, fpa11->fpreg[Fn].fExtended);
                break;
 #endif
 
@@ -177,8 +182,13 @@ static inline void storeExtended(const unsigned int Fn, unsigned int __user *pMe
        }
 
        put_user(val.i[0], &pMem[0]);   /* sign & exp */
+#ifdef __ARMEB__
+       put_user(val.i[1], &pMem[1]);   /* msw */
+       put_user(val.i[2], &pMem[2]);
+#else
        put_user(val.i[1], &pMem[2]);
        put_user(val.i[2], &pMem[1]);   /* msw */
+#endif
 }
 #endif
 
@@ -259,8 +269,11 @@ unsigned int PerformSTF(const unsigned int opcode)
 {
        unsigned int __user *pBase, *pAddress, *pFinal;
        unsigned int nRc = 1, write_back = WRITE_BACK(opcode);
+       struct roundingData roundData;
 
-       SetRoundingMode(ROUND_TO_NEAREST);
+       roundData.mode = SetRoundingMode(opcode);
+       roundData.precision = SetRoundingPrecision(opcode);
+       roundData.exception = 0;
 
        pBase = (unsigned int __user *) readRegister(getRn(opcode));
        if (REG_PC == getRn(opcode)) {
@@ -281,10 +294,10 @@ unsigned int PerformSTF(const unsigned int opcode)
 
        switch (opcode & MASK_TRANSFER_LENGTH) {
        case TRANSFER_SINGLE:
-               storeSingle(getFd(opcode), pAddress);
+               storeSingle(&roundData, getFd(opcode), pAddress);
                break;
        case TRANSFER_DOUBLE:
-               storeDouble(getFd(opcode), pAddress);
+               storeDouble(&roundData, getFd(opcode), pAddress);
                break;
 #ifdef CONFIG_FPE_NWFPE_XP
        case TRANSFER_EXTENDED:
@@ -295,6 +308,9 @@ unsigned int PerformSTF(const unsigned int opcode)
                nRc = 0;
        }
 
+       if (roundData.exception)
+               float_raise(roundData.exception);
+
        if (write_back)
                writeRegister(getRn(opcode), (unsigned long) pFinal);
        return nRc;