Merge tag 'ubifs-for-linus-6.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel...

[linux-2.6-microblaze.git] / include / drm / drm_cache.h

diff --git a/include/drm/drm_cache.h b/include/drm/drm_cache.h
index 22deb21..08e0e3f 100644 (file)
--- a/include/drm/drm_cache.h
+++ b/include/drm/drm_cache.h
@@ -67,6 +67,14 @@ static inline bool drm_arch_can_wc_memory(void)
         * optimization entirely for ARM and arm64.
         */
        return false;
+#elif defined(CONFIG_LOONGARCH)
+       /*
+        * LoongArch maintains cache coherency in hardware, but its WUC attribute
+        * (Weak-ordered UnCached, which is similar to WC) is out of the scope of
+        * cache coherency machanism. This means WUC can only used for write-only
+        * memory regions.
+        */
+       return false;
 #else
        return true;
 #endif