Index: libdrm/libdrm/xf86drm.h
===================================================================
--- libdrm.orig/libdrm/xf86drm.h	2006-11-09 05:54.000000000 +0800
+++ libdrm.orig/libdrm/xf86drm.h	2007-09-26 23:31:48.000000000 +0800
@@ -346,6 +346,30 @@
  		  "r" (new));			\
  	} while(0)
 
+#elif defined(__mips__)
+
+#define        DRM_CAS(lock, old, new, ret)            \
+       do {                                    \
+               __asm__ __volatile__(           \
+               "       .set mips3;.set noreorder;\n" \
+                "       sync; \n"             \
+               "       ll   %1, %0;\n"         \
+                "       bne  %1, %2, 1f;\n"            \
+               "        li   %1, 1; \n"     \
+               "       move %1, %3; \n"   \
+                "       sc    %1, %0;\n"               \
+                "       xori   %1, %1, 1\n"    \
+                "1:     \n"            \
+               "       .set mips0; .set reorder;\n"            \
+               : "=m" (__drm_dummy_lock(lock)),\
+                  "=&r" (ret)                  \
+               : "r" (old),                    \
+                 "r" (new)                     \
+               :"memory","$8" \
+               ); \
+       } while(0)
+
+
 #elif defined(__sparc__)
 
 #define DRM_CAS(lock,old,new,__ret)				\
@@ -427,7 +451,7 @@
 #define DRM_CAS(lock,old,new,ret) do { ret=1; } while (0) /* FAST LOCK FAILS */
 #endif
 
-#if defined(__alpha__) || defined(__powerpc__)
+#if defined(__alpha__) || defined(__powerpc__) || defined(__mips__)
 #define DRM_CAS_RESULT(_result)		int _result
 #else
 #define DRM_CAS_RESULT(_result)		char _result