import PULS_20160108

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / arm / include / asm / barrier.h

diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h
index 8dcd9c702d90c9c352d85595d0ea8f83a42f215e..b00ef075bc2e4adb7b08992d77d04c03ce91ac54 100644 (file)
--- a/arch/arm/include/asm/barrier.h
+++ b/arch/arm/include/asm/barrier.h
@@ -59,6 +59,21 @@
 #define smp_wmb()      dmb()
 #endif
 
+#define smp_store_release(p, v)                                                \
+do {                                                                   \
+       compiletime_assert_atomic_type(*p);                             \
+       smp_mb();                                                       \
+       ACCESS_ONCE(*p) = (v);                                          \
+} while (0)
+
+#define smp_load_acquire(p)                                            \
+({                                                                     \
+       typeof(*p) ___p1 = ACCESS_ONCE(*p);                             \
+       compiletime_assert_atomic_type(*p);                             \
+       smp_mb();                                                       \
+       ___p1;                                                          \
+})
+
 #define read_barrier_depends()         do { } while(0)
 #define smp_read_barrier_depends()     do { } while(0)