vdo/0001-Add-loongarch64-support.patch

From 249491af07c735d93fc743e413a5304057e43a75 Mon Sep 17 00:00:00 2001
From: doupengda <doupengda@loongson.cn>
Date: Tue, 7 Mar 2023 11:08:46 +0800
Subject: [PATCH] Add loongarch64 support

---
 utils/uds/atomicDefs.h | 8 +++++++-
 utils/uds/cpu.h        | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/utils/uds/atomicDefs.h b/utils/uds/atomicDefs.h
index 0aad609..f468369 100644
--- a/utils/uds/atomicDefs.h
+++ b/utils/uds/atomicDefs.h
@@ -97,6 +97,8 @@
   __asm__ __volatile__("bcr 14,0" : : : "memory");
 #elif defined __PPC__
   __asm__ __volatile__("sync" : : : "memory");
+#elif defined __loongarch64
+  __asm__ __volatile__("dbar 0" : : : "memory");
 #else
 #error "no fence defined"
 #endif
@@ -122,6 +124,8 @@
   __asm__ __volatile__("bcr 14,0" : : : "memory");
 #elif defined __PPC__
   __asm__ __volatile__("lwsync" : : : "memory");
+#elif defined __loongarch64
+  __asm__ __volatile__("dbar 0" : : : "memory");
 #else
 #error "no fence defined"
 #endif
@@ -147,6 +151,8 @@
   __asm__ __volatile__("bcr 14,0" : : : "memory");
 #elif defined __PPC__
   __asm__ __volatile__("lwsync" : : : "memory");
+#elif defined __loongarch64
+  __asm__ __volatile__("dbar 0" : : : "memory");
 #else
 #error "no fence defined"
 #endif
diff --git a/utils/uds/cpu.h b/utils/uds/cpu.h
index 6549f6e..e26d653 100644
--- a/utils/uds/cpu.h
+++ b/utils/uds/cpu.h
@@ -36,7 +36,7 @@
 #define CACHE_LINE_BYTES 128
 #elif defined(__s390x__)
 #define CACHE_LINE_BYTES 256
-#elif defined(__x86_64__) || defined(__aarch64__)
+#elif defined(__x86_64__) || defined(__aarch64__) || defined(__loongarch64)
 #define CACHE_LINE_BYTES 64
 #else
 #error "unknown cache line size"