From 87ba01dba90b0b2ffbad2b9e07552734959814db Mon Sep 17 00:00:00 2001
From: Christian Baars <Staars>
Date: Thu, 29 Apr 2021 15:52:27 +0200
Subject: Fix missing Cycles CPU name on macOS Arm

Differential Revision: https://developer.blender.org/D11061
---
 intern/cycles/util/util_system.cpp | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'intern')

diff --git a/intern/cycles/util/util_system.cpp b/intern/cycles/util/util_system.cpp
index 6500a59e42c..8971867b736 100644
--- a/intern/cycles/util/util_system.cpp
+++ b/intern/cycles/util/util_system.cpp
@@ -145,7 +145,7 @@ int system_cpu_num_active_group_processors()
   return numaAPI_GetNumCurrentNodesProcessors();
 }
 
-#if !defined(_WIN32) || defined(FREE_WINDOWS)
+#if !defined(__APPLE__) && (!defined(_WIN32) || defined(FREE_WINDOWS))
 static void __cpuid(int data[4], int selector)
 {
 #  if defined(__x86_64__)
@@ -166,7 +166,13 @@ static void __cpuid(int data[4], int selector)
 
 string system_cpu_brand_string()
 {
-#if !defined(WIN32) && !defined(__x86_64__) && !defined(__i386__)
+#if defined(__APPLE__)
+  char modelname[512] = "";
+  size_t bufferlen = 512;
+  if (sysctlbyname("machdep.cpu.brand_string", &modelname, &bufferlen, NULL, 0) == 0) {
+    return modelname;
+  }
+#elif !defined(WIN32) && !defined(__x86_64__) && !defined(__i386__)
   FILE *cpuinfo = fopen("/proc/cpuinfo", "r");
   if (cpuinfo != nullptr) {
     char cpuinfo_buf[513] = "";
-- 
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