From 6cfc02d24f252093cb4a646727241710ddd00412 Mon Sep 17 00:00:00 2001
From: SChernykh <15806605+SChernykh@users.noreply.github.com>
Date: Sat, 22 Mar 2025 11:34:23 +0100
Subject: [PATCH] Optimized autoconfig for AMD CPUs with < 2 MB L3 cache per
 thread

---
 src/backend/cpu/platform/HwlocCpuInfo.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/backend/cpu/platform/HwlocCpuInfo.cpp b/src/backend/cpu/platform/HwlocCpuInfo.cpp
index e96edbeb..38fb0a26 100644
--- a/src/backend/cpu/platform/HwlocCpuInfo.cpp
+++ b/src/backend/cpu/platform/HwlocCpuInfo.cpp
@@ -320,8 +320,13 @@ void xmrig::HwlocCpuInfo::processTopLevelCache(hwloc_obj_t cache, const Algorith
             L2 += l2->attr->cache.size;
             L2_associativity = l2->attr->cache.associativity;
 
-            if (L3_exclusive && l2->attr->cache.size >= scratchpad) {
-                extra += scratchpad;
+            if (L3_exclusive) {
+                if (vendor() == VENDOR_AMD) {
+                    extra += std::min<size_t>(l2->attr->cache.size, scratchpad);
+                }
+                else if (l2->attr->cache.size >= scratchpad) {
+                    extra += scratchpad;
+                }
             }
         }
     }