sparc64: IO accessors fix

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

I added a full memory clobber on all asm accessors except the _raw
ones.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 44 insertions, 22 deletions

diff --git a/include/asm-sparc64/io.h b/include/asm-sparc64/io.h
index c299b853b5ba..3158960f3eb5 100644
--- a/include/asm-sparc64/io.h
+++ b/include/asm-sparc64/io.h
@@ -24,7 +24,8 @@ static inline u8 _inb(unsigned long addr)
 
 	__asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 
 	return ret;
 }
@@ -35,7 +36,8 @@ static inline u16 _inw(unsigned long addr)
 
 	__asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 
 	return ret;
 }
@@ -46,7 +48,8 @@ static inline u32 _inl(unsigned long addr)
 
 	__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 
 	return ret;
 }
@@ -55,21 +58,24 @@ static inline void _outb(u8 b, unsigned long addr)
 {
 	__asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */"
 			     : /* no outputs */
-			     : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 static inline void _outw(u16 w, unsigned long addr)
 {
 	__asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */"
 			     : /* no outputs */
-			     : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 static inline void _outl(u32 l, unsigned long addr)
 {
 	__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */"
 			     : /* no outputs */
-			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 #define inb(__addr)		(_inb((unsigned long)(__addr)))
@@ -128,7 +134,8 @@ static inline u8 _readb(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 	return ret;
 }
 
@@ -137,7 +144,8 @@ static inline u16 _readw(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 
 	return ret;
 }
@@ -147,7 +155,8 @@ static inline u32 _readl(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 
 	return ret;
 }
@@ -157,7 +166,8 @@ static inline u64 _readq(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 
 	return ret;
 }
@@ -166,28 +176,32 @@ static inline void _writeb(u8 b, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */"
 			     : /* no outputs */
-			     : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 static inline void _writew(u16 w, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */"
 			     : /* no outputs */
-			     : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 static inline void _writel(u32 l, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */"
 			     : /* no outputs */
-			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 static inline void _writeq(u64 q, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */"
 			     : /* no outputs */
-			     : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
+			     : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
+			     : "memory");
 }
 
 #define readb(__addr)		_readb(__addr)
@@ -299,7 +313,8 @@ static inline u8 _sbus_readb(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 
 	return ret;
 }
@@ -310,7 +325,8 @@ static inline u16 _sbus_readw(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 
 	return ret;
 }
@@ -321,7 +337,8 @@ static inline u32 _sbus_readl(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 
 	return ret;
 }
@@ -332,7 +349,8 @@ static inline u64 _sbus_readq(const volatile void __iomem *addr)
 
 	__asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */"
 			     : "=r" (ret)
-			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 
 	return ret;
 }
@@ -341,28 +359,32 @@ static inline void _sbus_writeb(u8 b, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */"
 			     : /* no outputs */
-			     : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 }
 
 static inline void _sbus_writew(u16 w, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */"
 			     : /* no outputs */
-			     : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 }
 
 static inline void _sbus_writel(u32 l, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */"
 			     : /* no outputs */
-			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 }
 
 static inline void _sbus_writeq(u64 l, volatile void __iomem *addr)
 {
 	__asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */"
 			     : /* no outputs */
-			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
+			     : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
+			     : "memory");
 }
 
 #define sbus_readb(__addr)		_sbus_readb(__addr)