5 files changed, 88 insertions, 43 deletions

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 72da7e045c6b..0d08d4170b64 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -15,6 +15,7 @@
 #include <asm/glue.h>
 #include <asm/shmparam.h>
 #include <asm/cachetype.h>
+#include <asm/outercache.h>
 
 #define CACHE_COLOUR(vaddr)     ((vaddr & (SHMLBA - 1)) >> PAGE_SHIFT)
 
@@ -219,12 +220,6 @@ struct cpu_cache_fns {
         void (*dma_flush_range)(const void *, const void *);
 };
 
-struct outer_cache_fns {
-        void (*inv_range)(unsigned long, unsigned long);
-        void (*clean_range)(unsigned long, unsigned long);
-        void (*flush_range)(unsigned long, unsigned long);
-};
-
 /*
  * Select the calling method
  */
@@ -281,37 +276,6 @@ extern void dmac_flush_range(const void *, const void *);
 
 #endif
 
-#ifdef CONFIG_OUTER_CACHE
-
-extern struct outer_cache_fns outer_cache;
-
-static inline void outer_inv_range(unsigned long start, unsigned long end)
-{
-        if (outer_cache.inv_range)
-                outer_cache.inv_range(start, end);
-}
-static inline void outer_clean_range(unsigned long start, unsigned long end)
-{
-        if (outer_cache.clean_range)
-                outer_cache.clean_range(start, end);
-}
-static inline void outer_flush_range(unsigned long start, unsigned long end)
-{
-        if (outer_cache.flush_range)
-                outer_cache.flush_range(start, end);
-}
-
-#else
-
-static inline void outer_inv_range(unsigned long start, unsigned long end)
-{ }
-static inline void outer_clean_range(unsigned long start, unsigned long end)
-{ }
-static inline void outer_flush_range(unsigned long start, unsigned long end)
-{ }
-
-#endif
-
 /*
  * Copy user data from/to a page which is mapped into a different
  * processes address space.  Really, we want to allow our "user
diff --git a/arch/arm/include/asm/clkdev.h b/arch/arm/include/asm/clkdev.h
index 7a0690da5e63..b56c1389b6fa 100644
--- a/arch/arm/include/asm/clkdev.h
+++ b/arch/arm/include/asm/clkdev.h
@@ -13,6 +13,7 @@
 #define __ASM_CLKDEV_H
 
 struct clk;
+struct device;
 
 struct clk_lookup {
         struct list_head        node;
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index 328f14a8b790..237282f7c762 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -17,6 +17,7 @@
 
 #ifndef __ASSEMBLY__
 struct irqaction;
+struct pt_regs;
 extern void migrate_irqs(void);
 
 extern void asm_do_IRQ(unsigned int, struct pt_regs *);
diff --git a/arch/arm/include/asm/outercache.h b/arch/arm/include/asm/outercache.h
new file mode 100644
index 000000000000..25f76bae57ab
--- /dev/null
+++ b/arch/arm/include/asm/outercache.h
@@ -0,0 +1,75 @@
+/*
+ * arch/arm/include/asm/outercache.h
+ *
+ * Copyright (C) 2010 ARM Ltd.
+ * Written by Catalin Marinas <catalin.marinas@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __ASM_OUTERCACHE_H
+#define __ASM_OUTERCACHE_H
+
+struct outer_cache_fns {
+        void (*inv_range)(unsigned long, unsigned long);
+        void (*clean_range)(unsigned long, unsigned long);
+        void (*flush_range)(unsigned long, unsigned long);
+#ifdef CONFIG_OUTER_CACHE_SYNC
+        void (*sync)(void);
+#endif
+};
+
+#ifdef CONFIG_OUTER_CACHE
+
+extern struct outer_cache_fns outer_cache;
+
+static inline void outer_inv_range(unsigned long start, unsigned long end)
+{
+        if (outer_cache.inv_range)
+                outer_cache.inv_range(start, end);
+}
+static inline void outer_clean_range(unsigned long start, unsigned long end)
+{
+        if (outer_cache.clean_range)
+                outer_cache.clean_range(start, end);
+}
+static inline void outer_flush_range(unsigned long start, unsigned long end)
+{
+        if (outer_cache.flush_range)
+                outer_cache.flush_range(start, end);
+}
+
+#else
+
+static inline void outer_inv_range(unsigned long start, unsigned long end)
+{ }
+static inline void outer_clean_range(unsigned long start, unsigned long end)
+{ }
+static inline void outer_flush_range(unsigned long start, unsigned long end)
+{ }
+
+#endif
+
+#ifdef CONFIG_OUTER_CACHE_SYNC
+static inline void outer_sync(void)
+{
+        if (outer_cache.sync)
+                outer_cache.sync();
+}
+#else
+static inline void outer_sync(void)
+{ }
+#endif
+
+#endif  /* __ASM_OUTERCACHE_H */
diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index ca88e6a84707..4ace45ec3ef8 100644
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -60,6 +60,8 @@
 #include <linux/linkage.h>
 #include <linux/irqflags.h>
 
+#include <asm/outercache.h>
+
 #define __exception     __attribute__((section(".exception.text")))
 
 struct thread_info;
@@ -137,10 +139,12 @@ extern unsigned int user_debug;
 #define dmb() __asm__ __volatile__ ("" : : : "memory")
 #endif
 
-#if __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP)
-#define mb()            dmb()
+#ifdef CONFIG_ARCH_HAS_BARRIERS
+#include <mach/barriers.h>
+#elif __LINUX_ARM_ARCH__ >= 7 || defined(CONFIG_SMP)
+#define mb()            do { dsb(); outer_sync(); } while (0)
 #define rmb()           dmb()
-#define wmb()           dmb()
+#define wmb()           mb()
 #else
 #define mb()    do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
 #define rmb()   do { if (arch_is_coherent()) dmb(); else barrier(); } while (0)
@@ -152,9 +156,9 @@ extern unsigned int user_debug;
 #define smp_rmb()       barrier()
 #define smp_wmb()       barrier()
 #else
-#define smp_mb()        mb()
-#define smp_rmb()       rmb()
-#define smp_wmb()       wmb()
+#define smp_mb()        dmb()
+#define smp_rmb()       dmb()
+#define smp_wmb()       dmb()
 #endif
 
 #define read_barrier_depends()          do { } while(0)