sparccpuid module update.

1 files changed, 133 insertions, 0 deletions

diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c
new file mode 100644
index 0000000000..7012f78604
--- /dev/null
+++ b/crypto/sparcv9cap.c
@@ -0,0 +1,133 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <openssl/bn.h>
+
+#define SPARCV9_TICK_PRIVILEGED	(1<<0)
+#define SPARCV9_PREFER_FPU	(1<<1)
+#define SPARCV9_VIS1		(1<<2)
+#define SPARCV9_VIS2		(1<<3)	/* reserved */
+#define SPARCV9_FMADD		(1<<4)	/* reserved for SPARC64 V */
+static int OPENSSL_sparcv9cap_P=SPARCV9_TICK_PRIVILEGED;
+
+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_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 (OPENSSL_sparcv9cap_P&(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);
+	}
+
+unsigned long OPENSSL_rdtsc(void)
+	{
+	unsigned long OPENSSL_rdtick(void);
+
+	if (OPENSSL_sparcv9cap_P&SPARCV9_TICK_PRIVILEGED)
+#if defined(__sun) && defined(__SVR4)
+		return gethrtime();
+#else
+		return 0;
+#endif
+	else
+		return OPENSSL_rdtick();
+	}
+
+#if defined(__sun) && defined(__SVR4)
+
+#include <dlfcn.h>
+#include <libdevinfo.h>
+
+typedef di_node_t (*di_init_t)(const char *,uint_t);
+typedef void      (*di_fini_t)(di_node_t);
+typedef char *    (*di_node_name_t)(di_node_t);
+typedef int       (*di_walk_node_t)(di_node_t,uint_t,di_node_name_t,int (*)(di_node_t,di_node_name_t));
+
+#define DLLINK(h,name) (name=(name##_t)dlsym((h),#name))
+
+static int walk_nodename(di_node_t node, di_node_name_t di_node_name)
+	{
+	char *name = (*di_node_name)(node);
+
+	/* This is expected to catch all UltraSPARC flavors prior T1 */
+	if (!strcmp (name,"SUNW,UltraSPARC") ||
+	    !strncmp(name,"SUNW,UltraSPARC-I",17))
+		{
+		OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
+
+		/* %tick is privileged only on UltraSPARC-I/II */
+		if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0')
+			OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
+
+		return DI_WALK_TERMINATE;
+		}
+	/* This is expected to catch remaining UltraSPARC T1 */
+	else if (!strncmp(name,"SUNW,UltraSPARC",15))
+		{
+		OPENSSL_sparcv9cap_P |= SPARCV9_VIS1;
+		OPENSSL_sparcv9cap_P &= ~SPARCV9_TICK_PRIVILEGED;
+		}
+
+	return DI_WALK_CONTINUE;
+	}
+
+void OPENSSL_cpuid_setup(void)
+	{
+	void *h;
+	char *e;
+
+	if (e=getenv("OPENSSL_sparcv9cap"))
+		{
+		OPENSSL_sparcv9cap_P=strtoul(e,NULL,0);
+		return;
+		}
+
+	if (h = dlopen("libdevinfo.so.1",RTLD_LAZY)) do
+		{
+		di_init_t	di_init;
+		di_fini_t	di_fini;
+		di_walk_node_t	di_walk_node;
+		di_node_name_t	di_node_name;
+		di_node_t	root_node;
+
+		if (!DLLINK(h,di_init))		break;
+		if (!DLLINK(h,di_fini))		break;
+		if (!DLLINK(h,di_walk_node))	break;
+		if (!DLLINK(h,di_node_name))	break;
+
+		if ((root_node = (*di_init)("/",DINFOSUBTREE))!=DI_NODE_NIL)
+			{
+			(*di_walk_node)(root_node,DI_WALK_SIBFIRST,
+					di_node_name,walk_nodename);
+			(*di_fini)(root_node);
+			}
+		} while(0);
+
+	if (h) dlclose(h);
+	}
+
+#elif defined(__linux)
+
+void OPENSSL_cpuid_setup(void)
+	{
+	char *e;
+ 
+	if (e=getenv("OPENSSL_sparcv9cap"))
+		{
+		OPENSSL_sparcv9cap_P=strtoul(env,NULL,0);
+		return;
+		}
+
+	/* Linux apparently supports UltraSPARC-I/II/III only */
+	OPENSSL_sparcv9cap_P |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
+	}
+
+#else
+
+void OPENSSL_cpuid_setup(void) {}
+
+#endif