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openssl/crypto/sparcv9cap.c
Matt Caswell cc6e2a5936 Fix strange formatting by indent 
Conflicts:
	crypto/hmac/hmac.h

Reviewed-by: Tim Hudson <tjh@openssl.org>
2015-01-22 09:26:58 +00:00

329 lines
9.1 KiB
C
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <signal.h>
#include <sys/time.h>
#include <unistd.h>
#include <openssl/bn.h>
#include "sparc_arch.h"
#if defined(__GNUC__) && defined(__linux)
__attribute__((visibility("hidden")))
#endif
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&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);
void _sparcv9_vis1_probe(void);
unsigned long _sparcv9_vis1_instrument(void);
void _sparcv9_vis2_probe(void);
void _sparcv9_fmadd_probe(void);
unsigned long _sparcv9_rdcfr(void);
void _sparcv9_vis3_probe(void);
unsigned long _sparcv9_random(void);
size_t _sparcv9_vis1_instrument_bus(unsigned int *,size_t);
size_t _sparcv9_vis1_instrument_bus2(unsigned int *,size_t,size_t);
unsigned long OPENSSL_rdtsc(void)
{
if (OPENSSL_sparcv9cap_P[0]&SPARCV9_TICK_PRIVILEGED)
#if defined(__sun) && defined(__SVR4)
return gethrtime();
#else
return 0;
#endif
else
return _sparcv9_rdtick();
}
size_t OPENSSL_instrument_bus(unsigned int *out,size_t cnt)
{
if ((OPENSSL_sparcv9cap_P[0]&(SPARCV9_TICK_PRIVILEGED|SPARCV9_BLK)) ==
SPARCV9_BLK)
return _sparcv9_vis1_instrument_bus(out,cnt);
else
return 0;
}
size_t OPENSSL_instrument_bus2(unsigned int *out,size_t cnt,size_t max)
{
if ((OPENSSL_sparcv9cap_P[0]&(SPARCV9_TICK_PRIVILEGED|SPARCV9_BLK)) ==
SPARCV9_BLK)
return _sparcv9_vis1_instrument_bus2(out,cnt,max);
else
return 0;
}
#if 0 && defined(__sun) && defined(__SVR4)
/* This code path is disabled, because of incompatibility of
* libdevinfo.so.1 and libmalloc.so.1 (see below for details)
*/
#include <malloc.h>
#include <dlfcn.h>
#include <libdevinfo.h>
#include <sys/systeminfo.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") ||
/* covers II,III,IV */
!strncmp(name,"SUNW,UltraSPARC-I",17))
{
OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU|SPARCV9_VIS1;
/* %tick is privileged only on UltraSPARC-I/II, but not IIe */
if (name[14]!='\0' && name[17]!='\0' && name[18]!='\0')
OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
return DI_WALK_TERMINATE;
}
/* This is expected to catch remaining UltraSPARCs, such as T1 */
else if (!strncmp(name,"SUNW,UltraSPARC",15))
{
OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
return DI_WALK_TERMINATE;
}
return DI_WALK_CONTINUE;
}
void OPENSSL_cpuid_setup(void)
{
void *h;
char *e,si[256];
static int trigger=0;
if (trigger) return;
trigger=1;
if ((e=getenv("OPENSSL_sparcv9cap")))
{
OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
return;
}
if (sysinfo(SI_MACHINE,si,sizeof(si))>0)
{
if (strcmp(si,"sun4v"))
/* FPU is preferred for all CPUs, but US-T1/2 */
OPENSSL_sparcv9cap_P[0] |= SPARCV9_PREFER_FPU;
}
if (sysinfo(SI_ISALIST,si,sizeof(si))>0)
{
if (strstr(si,"+vis"))
OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1|SPARCV9_BLK;
if (strstr(si,"+vis2"))
{
OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
return;
}
}
#ifdef M_KEEP
/*
* Solaris libdevinfo.so.1 is effectively incomatible with
* libmalloc.so.1. Specifically, if application is linked with
* -lmalloc, it crashes upon startup with SIGSEGV in
* free(3LIBMALLOC) called by di_fini. Prior call to
* mallopt(M_KEEP,0) somehow helps... But not always...
*/
if ((h = dlopen(NULL,RTLD_LAZY)))
{
union { void *p; int (*f)(int,int); } sym;
if ((sym.p = dlsym(h,"mallopt"))) (*sym.f)(M_KEEP,0);
dlclose(h);
}
#endif
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);
}
#else
static sigjmp_buf common_jmp;
static void common_handler(int sig) { siglongjmp(common_jmp,sig); }
void OPENSSL_cpuid_setup(void)
{
char *e;
struct sigaction common_act,ill_oact,bus_oact;
sigset_t all_masked,oset;
static int trigger=0;
if (trigger) return;
trigger=1;
if ((e=getenv("OPENSSL_sparcv9cap")))
{
OPENSSL_sparcv9cap_P[0]=strtoul(e,NULL,0);
if ((e=strchr(e,':')))
OPENSSL_sparcv9cap_P[1]=strtoul(e+1,NULL,0);
return;
}
/* Initial value, fits UltraSPARC-I&II... */
OPENSSL_sparcv9cap_P[0] = SPARCV9_PREFER_FPU|SPARCV9_TICK_PRIVILEGED;
sigfillset(&all_masked);
sigdelset(&all_masked,SIGILL);
sigdelset(&all_masked,SIGTRAP);
#ifdef SIGEMT
sigdelset(&all_masked,SIGEMT);
#endif
sigdelset(&all_masked,SIGFPE);
sigdelset(&all_masked,SIGBUS);
sigdelset(&all_masked,SIGSEGV);
sigprocmask(SIG_SETMASK,&all_masked,&oset);
memset(&common_act,0,sizeof(common_act));
common_act.sa_handler = common_handler;
common_act.sa_mask = all_masked;
sigaction(SIGILL,&common_act,&ill_oact);
sigaction(SIGBUS,&common_act,&bus_oact);/* T1 fails 16-bit ldda [on Linux] */
if (sigsetjmp(common_jmp,1) == 0)
{
_sparcv9_rdtick();
OPENSSL_sparcv9cap_P[0] &= ~SPARCV9_TICK_PRIVILEGED;
}
if (sigsetjmp(common_jmp,1) == 0)
{
_sparcv9_vis1_probe();
OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS1|SPARCV9_BLK;
/* detect UltraSPARC-Tx, see sparccpud.S for details... */
if (_sparcv9_vis1_instrument() >= 12)
OPENSSL_sparcv9cap_P[0] &= ~(SPARCV9_VIS1|SPARCV9_PREFER_FPU);
else
{
_sparcv9_vis2_probe();
OPENSSL_sparcv9cap_P[0] |= SPARCV9_VIS2;
}
}
if (sigsetjmp(common_jmp,1) == 0)
{
_sparcv9_fmadd_probe();
OPENSSL_sparcv9cap_P[0] |= SPARCV9_FMADD;
}
/*
* VIS3 flag is tested independently from VIS1, unlike VIS2 that is,
* because VIS3 defines even integer instructions.
*/
if (sigsetjmp(common_jmp,1) == 0)
{
_sparcv9_vis3_probe();
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
* VIS3 flag, because it goes to uninterruptable endless
* loop on UltraSPARC II running Solaris. Things might be
* different on Linux...
*/
if ((OPENSSL_sparcv9cap_P[0]&SPARCV9_VIS3) &&
sigsetjmp(common_jmp,1) == 0)
{
OPENSSL_sparcv9cap_P[1] = (unsigned int)_sparcv9_rdcfr();
}
sigaction(SIGBUS,&bus_oact,NULL);
sigaction(SIGILL,&ill_oact,NULL);
sigprocmask(SIG_SETMASK,&oset,NULL);
if (sizeof(size_t)==8)
OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
#ifdef __linux
else
{
int ret = syscall(340);
if (ret>=0 && ret&1)
OPENSSL_sparcv9cap_P[0] |= SPARCV9_64BIT_STACK;
}
#endif
}
#endif
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