X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fmips-arch.h;h=4ac1b787b3e28f4f9c51d039103734812e6ed81f;hb=3a340441c36832861f53fc16478607ea8ab5cb2e;hp=50b0776587c830f414fe123827e761460d51475b;hpb=2378b4fe567a8fea78b1e4915b9497d8c18ca92f;p=sbcl.git

diff --git a/src/runtime/mips-arch.h b/src/runtime/mips-arch.h
index 50b0776..4ac1b78 100644
--- a/src/runtime/mips-arch.h
+++ b/src/runtime/mips-arch.h
@@ -2,16 +2,62 @@
 #define _MIPS_ARCH_H
 
 
-static inline void 
-get_spinlock(lispobj *word,int value)
+static inline void
+get_spinlock(volatile lispobj *word, long value)
 {
-    *word=value;		/* FIXME for threads */
+#ifdef LISP_FEATURE_SB_THREAD
+    unsigned long __old = (volatile lispobj)*word;
+    unsigned long __prev;
+    int __cmp;
+
+    __asm__ __volatile__ (
+        "       .set push\n"
+        "       .set mips2\n"
+        "       .set noreorder\n"
+        "1:     ll      %[__prev],%[__mem]\n"
+        "       bne     %[__prev],%[__old],2f\n"
+        "        li     %[__cmp],0\n"
+        "       move    %[__cmp],%[__new]\n"
+        "       sc      %[__cmp],%[__mem]\n"
+        "       beqz    %[__cmp],1b\n"
+        "        nop\n"
+        "       sync\n"
+        "2:\n"
+        "       .set pop"
+        : [__prev] "=&r" (__prev),
+          [__cmp] "=&r" (__cmp)
+        : [__mem] "R" (*word),
+          [__old] "r" (__old),
+          [__new] "r" (value)
+        : "memory");
+
+    if (!cmp)
+        lose("recursive get_spinlock: 0x%x,%d\n", word, value);
+#else /* LISP_FEATURE_SB_THREAD */
+    *word=value;
+#endif
 }
 
 static inline void
-release_spinlock(lispobj *word)
+release_spinlock(volatile lispobj *word)
 {
+#ifdef LISP_FEATURE_SB_THREAD
+    __asm__ __volatile__ (
+        "       .set push\n"
+        "       .set mips2\n"
+        "       .set noreorder\n"
+        "       sw      $0,%[__mem]\n"
+        "       sync\n"
+        "       .set pop"
+        :
+        : [__mem] "R" (*word)
+        : "memory");
+#else /* LISP_FEATURE_SB_THREAD */
     *word=0;
+#endif
 }
 
+unsigned int arch_get_fp_control(void);
+void arch_set_fp_control(unsigned int fp);
+
 #endif /* _MIPS_ARCH_H */