[PATCH] ARM: 2837/2: Re: ARM: Make NWFPE preempt safe

[firefly-linux-kernel-4.4.55.git] / arch / arm / nwfpe / fpa11.c

diff --git a/arch/arm/nwfpe/fpa11.c b/arch/arm/nwfpe/fpa11.c
index bf61696865ec2c6531007d6eaa6aedd6c6bf8850..7690f731ee8706227acdf3b1f56de14f2b906839 100644 (file)
--- a/arch/arm/nwfpe/fpa11.c
+++ b/arch/arm/nwfpe/fpa11.c
@@ -51,48 +51,42 @@ static void resetFPA11(void)
        fpa11->fpsr = FP_EMULATOR | BIT_AC;
 }
 
-void SetRoundingMode(const unsigned int opcode)
+int8 SetRoundingMode(const unsigned int opcode)
 {
        switch (opcode & MASK_ROUNDING_MODE) {
        default:
        case ROUND_TO_NEAREST:
-               float_rounding_mode = float_round_nearest_even;
-               break;
+               return float_round_nearest_even;
 
        case ROUND_TO_PLUS_INFINITY:
-               float_rounding_mode = float_round_up;
-               break;
+               return float_round_up;
 
        case ROUND_TO_MINUS_INFINITY:
-               float_rounding_mode = float_round_down;
-               break;
+               return float_round_down;
 
        case ROUND_TO_ZERO:
-               float_rounding_mode = float_round_to_zero;
-               break;
+               return float_round_to_zero;
        }
 }
 
-void SetRoundingPrecision(const unsigned int opcode)
+int8 SetRoundingPrecision(const unsigned int opcode)
 {
 #ifdef CONFIG_FPE_NWFPE_XP
        switch (opcode & MASK_ROUNDING_PRECISION) {
        case ROUND_SINGLE:
-               floatx80_rounding_precision = 32;
-               break;
+               return 32;
 
        case ROUND_DOUBLE:
-               floatx80_rounding_precision = 64;
-               break;
+               return 64;
 
        case ROUND_EXTENDED:
-               floatx80_rounding_precision = 80;
-               break;
+               return 80;
 
        default:
-               floatx80_rounding_precision = 80;
+               return 80;
        }
 #endif
+       return 80;
 }
 
 void nwfpe_init_fpa(union fp_state *fp)
@@ -103,8 +97,6 @@ void nwfpe_init_fpa(union fp_state *fp)
 #endif
        memset(fpa11, 0, sizeof(FPA11));
        resetFPA11();
-       SetRoundingMode(ROUND_TO_NEAREST);
-       SetRoundingPrecision(ROUND_EXTENDED);
        fpa11->initflag = 1;
 }