From 64074a44a659c2794f21a278a5f784fc32bca8b0 Mon Sep 17 00:00:00 2001
From: Philip Rebohle <philip.rebohle@tu-dortmund.de>
Date: Mon, 24 Feb 2025 23:58:33 +0100
Subject: [PATCH] [util] Add sfence helper

---
 src/util/util_bit.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/util/util_bit.h b/src/util/util_bit.h
index 6f6727005..08ec6e4d9 100644
--- a/src/util/util_bit.h
+++ b/src/util/util_bit.h
@@ -632,4 +632,17 @@ namespace dxvk::bit {
     return float(n) / float(1u << F);
   }
 
+
+  /**
+   * \brief Flush pending stores, if any
+   *
+   * Needed on x86 after writing to mapped memory or using non-temporal
+   * stores in order to flush write-combined buffers.
+   */
+  inline void sfence() {
+    #if defined(DXVK_ARCH_X86) && (defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER))
+    _mm_sfence();
+    #endif
+  }
+
 }