Blackfin/ipipe: prepare status bitops for SMP support

Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Li Yi <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 9 insertions, 17 deletions

diff --git a/arch/blackfin/include/asm/ipipe_base.h b/arch/blackfin/include/asm/ipipe_base.h
index 490098f532a7..00409201d9ed 100644
--- a/arch/blackfin/include/asm/ipipe_base.h
+++ b/arch/blackfin/include/asm/ipipe_base.h
@@ -51,23 +51,15 @@
 
 extern unsigned long __ipipe_root_status; /* Alias to ipipe_root_cpudom_var(status) */
 
-#define __ipipe_stall_root()                                            \
-        do {                                                            \
-                volatile unsigned long *p = &__ipipe_root_status;       \
-                set_bit(0, p);                                          \
-        } while (0)
-
-#define __ipipe_test_and_stall_root()                                   \
-        ({                                                              \
-                volatile unsigned long *p = &__ipipe_root_status;       \
-                test_and_set_bit(0, p);                                 \
-        })
-
-#define __ipipe_test_root()                                     \
-        ({                                                      \
-                const unsigned long *p = &__ipipe_root_status;  \
-                test_bit(0, p);                                 \
-        })
+void __ipipe_stall_root(void);
+
+unsigned long __ipipe_test_and_stall_root(void);
+
+unsigned long __ipipe_test_root(void);
+
+void __ipipe_lock_root(void);
+
+void __ipipe_unlock_root(void);
 
 #endif /* !__ASSEMBLY__ */