From 4bee135cc1362c168d419e3b021e4a97f5883816 Mon Sep 17 00:00:00 2001
From: Scott Tsai <scottt.tw@gmail.com>
Date: Wed, 30 Apr 2025 20:53:11 +0800
Subject: [PATCH] cpuid_x86: improve Intel Arrow Lake detection

Add Intel Arrow Lake CPUIDs. See the datasheet:
https://edc.intel.com/content/www/us/en/design/products/platforms/details/arrow-lake-s/core-ultra-200s-series-processors-datasheet-volume-1-of-2/cpuid/
---
 cpuid_x86.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/cpuid_x86.c b/cpuid_x86.c
index 4e13f1462..1b09c7217 100644
--- a/cpuid_x86.c
+++ b/cpuid_x86.c
@@ -1578,6 +1578,7 @@ int get_cpuname(void){
       case 12: //family 6 exmodel 12
 	switch (model) {
 	  case 15:
+	  case 6: // Arrow Lake
 	    if(support_avx512())
               return CPUTYPE_SAPPHIRERAPIDS;
             if(support_avx2())
@@ -2421,6 +2422,22 @@ int get_coretype(void){
 	  else
 	  return CORE_NEHALEM;
 	}
+      case 12:
+	switch (model) {
+	  case 6: // Arrow Lake
+	  if(support_amx_bf16())
+	    return CORE_SAPPHIRERAPIDS;
+	  if(support_avx512_bf16())
+            return CORE_COOPERLAKE;
+          if(support_avx512())
+            return CORE_SKYLAKEX;
+          if(support_avx2())
+            return CORE_HASWELL;
+          if(support_avx())
+	    return CORE_SANDYBRIDGE;
+	  else
+	    return CORE_NEHALEM;
+	}
       }
     case 15:
       if (model <= 0x2) return CORE_NORTHWOOD;