Disintegrate asm/system.h for Sparc
Disintegrate asm/system.h for Sparc.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: sparclinux@vger.kernel.org
diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h
index 2e46877..68431b4 100644
--- a/arch/sparc/include/asm/cacheflush_32.h
+++ b/arch/sparc/include/asm/cacheflush_32.h
@@ -83,4 +83,13 @@
#define flush_cache_vmap(start, end) flush_cache_all()
#define flush_cache_vunmap(start, end) flush_cache_all()
+/* When a context switch happens we must flush all user windows so that
+ * the windows of the current process are flushed onto its stack. This
+ * way the windows are all clean for the next process and the stack
+ * frames are up to date.
+ */
+extern void flush_user_windows(void);
+extern void kill_user_windows(void);
+extern void flushw_all(void);
+
#endif /* _SPARC_CACHEFLUSH_H */