Merge pull request #2744 from martin-frbg/issue2738

Add AMD Renoir/Matisse cpu autodetection and preliminary support for Zen3

Author: martin-frbg

cpuid_x86.c

@@ -1454,10 +1454,11 @@ int get_cpuname(void){
 	return CPUTYPE_OPTERON;
       case  1:
       case  3:
-      case  7:
-      case 10:
+//      case  7:
+//      case 10:
 	return CPUTYPE_BARCELONA;
       case  5:
+      case  7:		      
 	return CPUTYPE_BOBCAT;
       case  6:
 	switch (model) {
@@ -1507,6 +1508,8 @@ int get_cpuname(void){
 	  // AMD Ryzen
 	case 8:
 	  // AMD Ryzen2
+	default:
+	  // Matisse/Renoir and other recent Ryzen2		
 	  if(support_avx())
 #ifndef NO_AVX2
 	    return CPUTYPE_ZEN;
@@ -1516,6 +1519,16 @@ int get_cpuname(void){
 	  else
 	    return CPUTYPE_BARCELONA;
         }
+	break;	      
+      case 10: // Zen3		      
+	if(support_avx())
+#ifndef NO_AVX2
+	    return CPUTYPE_ZEN;
+#else
+	    return CPUTYPE_SANDYBRIDGE; // Zen is closer in architecture to Sandy Bridge than to Excavator
+#endif
+	  else
+	    return CPUTYPE_BARCELONA;	      
       }
       break;
     }
@@ -2107,7 +2120,7 @@ int get_coretype(void){
 	    return CORE_PILEDRIVER;
 	  else
 	    return CORE_BARCELONA; //OS don't support AVX.
-    case 5: // New EXCAVATOR
+        case 5: // New EXCAVATOR
 	  if(support_avx())
 	    return CORE_EXCAVATOR;
 	  else
@@ -2135,12 +2148,14 @@ int get_coretype(void){
 	  }
 	  break;
 	}
-      } else if (exfamily == 8) {
+      } else if (exfamily == 8 || exfamily == 10) {
 	switch (model) {
 	case 1:
 	  // AMD Ryzen
 	case 8:
-	  // Ryzen 2		
+	  // Ryzen 2
+	default:
+	  // Matisse,Renoir Ryzen2 models		
 	  if(support_avx())
 #ifndef NO_AVX2
 	    return CORE_ZEN;

driver/others/dynamic.c

@@ -656,7 +656,7 @@ static gotoblas_t *get_coretype(void){
       if ((exfamily == 0) || (exfamily == 2)) {
 	if (ecx & (1 <<  0)) return &gotoblas_OPTERON_SSE3;
 	else return &gotoblas_OPTERON;
-      }  else if (exfamily == 5) {
+      }  else if (exfamily == 5 || exfamily == 7) {
 	return &gotoblas_BOBCAT;
       } else if (exfamily == 6) {
 	if(model == 1){
@@ -710,24 +710,32 @@ static gotoblas_t *get_coretype(void){
 	  }
 	}
       } else if (exfamily == 8) {
-	if (model == 1 || model == 8) {
+	/* if (model == 1 || model == 8) */ {
 	  if(support_avx())
 	    return &gotoblas_ZEN;
 	  else{
 	    openblas_warning(FALLBACK_VERBOSE, BARCELONA_FALLBACK);
 	    return &gotoblas_BARCELONA; //OS doesn't support AVX. Use old kernels.
 	  }
 	}
-      } else if (exfamily == 9) {
+      } else if (exfamily == 9) {  
 	  if(support_avx())
 	    return &gotoblas_ZEN;
 	  else{
 	    openblas_warning(FALLBACK_VERBOSE, BARCELONA_FALLBACK);
 	    return &gotoblas_BARCELONA; //OS doesn't support AVX. Use old kernels.
-        }
+          }
+      } else if (exfamily == 10) {  
+	  if(support_avx())
+	    return &gotoblas_ZEN;
+	  else{
+	    openblas_warning(FALLBACK_VERBOSE, BARCELONA_FALLBACK);
+	    return &gotoblas_BARCELONA; //OS doesn't support AVX. Use old kernels.
+          }
       }else {
 	return &gotoblas_BARCELONA;
       }
+   
     }
   }