X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Fsparcv9cap.c;h=7ee6769120b21702dc248e9083326459a3db46e1;hb=a5d03c54ab9f14ffe709b948fe3076104845467b;hp=70a581992d7b7907b8cb22aafa8929bba2d96854;hpb=48b7b96bd0ddca21e7cce8f1f7e904cbc361005a;p=oweals%2Fopenssl.git

diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c
index 70a581992d..7ee6769120 100644
--- a/crypto/sparcv9cap.c
+++ b/crypto/sparcv9cap.c
@@ -16,15 +16,39 @@ unsigned int OPENSSL_sparcv9cap_P[2]={SPARCV9_TICK_PRIVILEGED,0};
 
 int bn_mul_mont(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num)
 	{
+	int bn_mul_mont_vis3(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num);
 	int bn_mul_mont_fpu(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num);
 	int bn_mul_mont_int(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0, int num);
 
-	if (num>=8 && !(num&1) &&
-	    (OPENSSL_sparcv9cap_P[0]&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) ==
-		(SPARCV9_PREFER_FPU|SPARCV9_VIS1))
-		return bn_mul_mont_fpu(rp,ap,bp,np,n0,num);
-	else
-		return bn_mul_mont_int(rp,ap,bp,np,n0,num);
+	if (!(num&1) && num>=6)
+		{
+		if ((num&15)==0 && num<=64 &&
+		    (OPENSSL_sparcv9cap_P[1]&(CFR_MONTMUL|CFR_MONTSQR))== 
+		    			     (CFR_MONTMUL|CFR_MONTSQR))
+			{
+			typedef int (*bn_mul_mont_f)(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
+			int bn_mul_mont_t4_8(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
+			int bn_mul_mont_t4_16(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
+			int bn_mul_mont_t4_24(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
+			int bn_mul_mont_t4_32(BN_ULONG *rp, const BN_ULONG *ap, const BN_ULONG *bp, const BN_ULONG *np,const BN_ULONG *n0);
+			static const bn_mul_mont_f funcs[4] = {
+				bn_mul_mont_t4_8,	bn_mul_mont_t4_16,
+				bn_mul_mont_t4_24,	bn_mul_mont_t4_32 };
+			bn_mul_mont_f worker = funcs[num/16-1];
+
+			if ((*worker)(rp,ap,bp,np,n0)) return 1;
+			/* retry once and fall back */
+			if ((*worker)(rp,ap,bp,np,n0)) return 1;
+			return bn_mul_mont_vis3(rp,ap,bp,np,n0,num);
+			}
+		if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3))
+			return bn_mul_mont_vis3(rp,ap,bp,np,n0,num);
+		else if (num>=8 &&
+			(OPENSSL_sparcv9cap_P[0]&(SPARCV9_PREFER_FPU|SPARCV9_VIS1)) ==
+			(SPARCV9_PREFER_FPU|SPARCV9_VIS1))
+			return bn_mul_mont_fpu(rp,ap,bp,np,n0,num);
+		}
+	return bn_mul_mont_int(rp,ap,bp,np,n0,num);
 	}
 
 unsigned long	_sparcv9_rdtick(void);
@@ -263,11 +287,13 @@ void OPENSSL_cpuid_setup(void)
 		OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS3;
 		}
 
+#if 0	/* was planned at some point but never implemented in hardware */
 	if (sigsetjmp(common_jmp,1) == 0)
 		{
 		(void)_sparcv9_random();
 		OPENSSL_sparcv9cap_P[0] |= SPARCV9_RANDOM;
 		}
+#endif
 
 	/*
 	 * In wait for better solution _sparcv9_rdcfr is masked by