sparccpuid module update.
authorAndy Polyakov <appro@openssl.org>
Thu, 15 Dec 2005 22:50:36 +0000 (22:50 +0000)
committerAndy Polyakov <appro@openssl.org>
Thu, 15 Dec 2005 22:50:36 +0000 (22:50 +0000)
crypto/sparccpuid.S
crypto/sparcv9cap.c [new file with mode: 0644]

index c17350f..ac57472 100644 (file)
@@ -34,7 +34,8 @@ OPENSSL_wipe_cpu:
        nop
        call    .PIC.zero.up
        mov     .zero-(.-4),%o0
-       ldd     [%o0],%f0
+       ld      [%o0],%f0
+       ld      [%o0],%f1
 
        subcc   %g0,1,%o0
        ! Following is V9 "rd %ccr,%o0" instruction. However! V8
@@ -166,6 +167,7 @@ walk_reg_wins:
 
 .global        OPENSSL_atomic_add
 .type  OPENSSL_atomic_add,#function
+.align 32
 OPENSSL_atomic_add:
 #ifndef ABI64
        subcc   %g0,1,%o2
@@ -213,27 +215,23 @@ OPENSSL_atomic_add:
        sra     %o0,%g0,%o0     ! we return signed int, remember?
 .size  OPENSSL_atomic_add,.-OPENSSL_atomic_add
 
-.global        OPENSSL_rdtsc
+.global        OPENSSL_rdtick
+.align 32
+OPENSSL_rdtick:
        subcc   %g0,1,%o0
        .word   0x91408000      !rd     %ccr,%o0
        cmp     %o0,0x99
-       bne     .notsc
+       bne     .notick
        xor     %o0,%o0,%o0
-       save    %sp,FRAME-16,%sp
-       mov     513,%o0         !SI_PLATFORM
-       add     %sp,BIAS+16,%o1
-       call    sysinfo
-       mov     256,%o2
-
-       add     %sp,BIAS-16,%o1
-       ld      [%o1],%l0
-       ld      [%o1+4],%l1
-       ld      [%o1+8],%l2
-       mov     %lo('SUNW'),%l3
-       ret
-       restore
-.notsc:
+       .word   0x91410000      !rd     %tick,%o0
+       retl
+       .word   0x93323020      !srlx   %o2,32,%o1
+.notick:
        retl
+       xor     %o1,%o1,%o1
+.type  OPENSSL_rdtick,#function
+.size  OPENSSL_rdtick,.-OPENSSL_rdtick
+
+.section       ".init",#alloc,#execinstr
+       call    OPENSSL_cpuid_setup
        nop
-.type  OPENSSL_rdtsc,#function
-.size  OPENSSL_rdtsc,.-OPENSSL_atomic_add
diff --git a/crypto/sparcv9cap.c b/crypto/sparcv9cap.c
new file mode 100644 (file)
index 0000000..7012f78
--- /dev/null
@@ -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