[ARM] Add initial __iomem annotations to ARM io.h headers.

arch/arm/mach-ebsa110/io.c

@@ -27,9 +27,9 @@
 #include <asm/io.h>
 #include <asm/page.h>
 
-static u32 __isamem_convert_addr(void *addr)
+static void __iomem *__isamem_convert_addr(void __iomem *addr)
 {
-	u32 ret, a = (u32) addr;
+	u32 ret, a = (u32 __force) addr;
 
 	/*
 	 * The PCMCIA controller is wired up as follows:
@@ -53,41 +53,43 @@ static u32 __isamem_convert_addr(void *addr)
 	ret += 0xe8000000;
 
 	if ((a & 0x20000) == (a & 0x40000) >> 1)
-		return ret;
+		return (void __iomem *)ret;
 
 	BUG();
-	return 0;
+	return NULL;
 }
 
 /*
  * read[bwl] and write[bwl]
  */
-u8 __readb(void *addr)
+u8 __readb(void __iomem *addr)
 {
-	u32 ret, a = __isamem_convert_addr(addr);
+	void __iomem *a = __isamem_convert_addr(addr);
+	u32 ret;
 
-	if ((int)addr & 1)
+	if ((unsigned long)addr & 1)
 		ret = __raw_readl(a);
 	else
 		ret = __raw_readb(a);
 	return ret;
 }
 
-u16 __readw(void *addr)
+u16 __readw(void __iomem *addr)
 {
-	u32 a = __isamem_convert_addr(addr);
+	void __iomem *a = __isamem_convert_addr(addr);
 
-	if ((int)addr & 1)
+	if ((unsigned long)addr & 1)
 		BUG();
 
 	return __raw_readw(a);
 }
 
-u32 __readl(void *addr)
+u32 __readl(void __iomem *addr)
 {
-	u32 ret, a = __isamem_convert_addr(addr);
+	void __iomem *a = __isamem_convert_addr(addr);
+	u32 ret;
 
-	if ((int)addr & 3)
+	if ((unsigned long)addr & 3)
 		BUG();
 
 	ret = __raw_readw(a);
@@ -99,31 +101,31 @@ EXPORT_SYMBOL(__readb);
 EXPORT_SYMBOL(__readw);
 EXPORT_SYMBOL(__readl);
 
-void __writeb(u8 val, void *addr)
+void __writeb(u8 val, void __iomem *addr)
 {
-	u32 a = __isamem_convert_addr(addr);
+	void __iomem *a = __isamem_convert_addr(addr);
 
-	if ((int)addr & 1)
+	if ((unsigned long)addr & 1)
 		__raw_writel(val, a);
 	else
 		__raw_writeb(val, a);
 }
 
-void __writew(u16 val, void *addr)
+void __writew(u16 val, void __iomem *addr)
 {
-	u32 a = __isamem_convert_addr(addr);
+	void __iomem *a = __isamem_convert_addr(addr);
 
-	if ((int)addr & 1)
+	if ((unsigned long)addr & 1)
 		BUG();
 
 	__raw_writew(val, a);
 }
 
-void __writel(u32 val, void *addr)
+void __writel(u32 val, void __iomem *addr)
 {
-	u32 a = __isamem_convert_addr(addr);
+	void __iomem *a = __isamem_convert_addr(addr);
 
-	if ((int)addr & 3)
+	if ((unsigned long)addr & 3)
 		BUG();
 
 	__raw_writew(val, a);
@@ -153,7 +155,7 @@ u8 __inb8(unsigned int port)
 	if (SUPERIO_PORT(port))
 		ret = __raw_readb(ISAIO_BASE + (port << 2));
 	else {
-		u32 a = ISAIO_BASE + ((port & ~1) << 1);
+		void __iomem *a = ISAIO_BASE + ((port & ~1) << 1);
 
 		/*
 		 * Shame nothing else does
@@ -180,7 +182,7 @@ u8 __inb16(unsigned int port)
 	if (SUPERIO_PORT(port))
 		ret = __raw_readb(ISAIO_BASE + (port << 2));
 	else {
-		u32 a = ISAIO_BASE + ((port & ~1) << 1);
+		void __iomem *a = ISAIO_BASE + ((port & ~1) << 1);
 
 		/*
 		 * Shame nothing else does
@@ -200,7 +202,7 @@ u16 __inw(unsigned int port)
 	if (SUPERIO_PORT(port))
 		ret = __raw_readw(ISAIO_BASE + (port << 2));
 	else {
-		u32 a = ISAIO_BASE + ((port & ~1) << 1);
+		void __iomem *a = ISAIO_BASE + ((port & ~1) << 1);
 
 		/*
 		 * Shame nothing else does
@@ -218,7 +220,7 @@ u16 __inw(unsigned int port)
  */
 u32 __inl(unsigned int port)
 {
-	u32 a;
+	void __iomem *a;
 
 	if (SUPERIO_PORT(port) || port & 3)
 		BUG();
@@ -241,7 +243,7 @@ void __outb8(u8 val, unsigned int port)
 	if (SUPERIO_PORT(port))
 		__raw_writeb(val, ISAIO_BASE + (port << 2));
 	else {
-		u32 a = ISAIO_BASE + ((port & ~1) << 1);
+		void __iomem *a = ISAIO_BASE + ((port & ~1) << 1);
 
 		/*
 		 * Shame nothing else does
@@ -261,7 +263,7 @@ void __outb16(u8 val, unsigned int port)
 	if (SUPERIO_PORT(port))
 		__raw_writeb(val, ISAIO_BASE + (port << 2));
 	else {
-		u32 a = ISAIO_BASE + ((port & ~1) << 1);
+		void __iomem *a = ISAIO_BASE + ((port & ~1) << 1);
 
 		/*
 		 * Shame nothing else does

arch/arm/mm/ioremap.c

@@ -130,7 +130,7 @@ remap_area_pages(unsigned long start, unsigned long phys_addr,
  * 'flags' are the extra L_PTE_ flags that you want to specify for this
  * mapping.  See include/asm-arm/proc-armv/pgtable.h for more information.
  */
-void *
+void __iomem *
 __ioremap(unsigned long phys_addr, size_t size, unsigned long flags,
 	  unsigned long align)
 {
@@ -161,11 +161,11 @@ __ioremap(unsigned long phys_addr, size_t size, unsigned long flags,
 		vfree(addr);
 		return NULL;
 	}
-	return (void *) (offset + (char *)addr);
+	return (void __iomem *) (offset + (char *)addr);
 }
 EXPORT_SYMBOL(__ioremap);
 
-void __iounmap(void *addr)
+void __iounmap(void __iomem *addr)
 {
 	vfree((void *) (PAGE_MASK & (unsigned long) addr));
 }

include/asm-arm/arch-clps711x/io.h

@@ -22,9 +22,9 @@
 
 #define IO_SPACE_LIMIT 0xffffffff
 
-#define __io(a)			((a))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(a))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 /*
  * We don't support ins[lb]/outs[lb].  Make them fault.

include/asm-arm/arch-ebsa110/io.h

@@ -27,13 +27,13 @@ void __outw(u16 val, unsigned int port);
 u32 __inl(unsigned int port);
 void __outl(u32 val, unsigned int port);
 
-u8  __readb(void *addr);
-u16 __readw(void *addr);
-u32 __readl(void *addr);
+u8  __readb(void __iomem *addr);
+u16 __readw(void __iomem *addr);
+u32 __readl(void __iomem *addr);
 
-void __writeb(u8  val, void *addr);
-void __writew(u16 val, void *addr);
-void __writel(u32 val, void *addr);
+void __writeb(u8  val, void __iomem *addr);
+void __writew(u16 val, void __iomem *addr);
+void __writel(u32 val, void __iomem *addr);
 
 /*
  * Argh, someone forgot the IOCS16 line.  We therefore have to handle
@@ -64,7 +64,7 @@ void __writel(u32 val, void *addr);
 #define writew(v,b)		__writew(v,b)
 #define writel(v,b)		__writel(v,b)
 
-#define __arch_ioremap(cookie,sz,c,a)	((void *)(cookie))
+#define __arch_ioremap(cookie,sz,c,a)	((void __iomem *)(cookie))
 #define __arch_iounmap(cookie)		do { } while (0)
 
 extern void insb(unsigned int port, void *buf, int sz);

include/asm-arm/arch-ebsa285/io.h

@@ -19,25 +19,27 @@
 /*
  * Translation of various region addresses to virtual addresses
  */
-#define __io(a)			(PCIO_BASE + (a))
+#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
 #if 1
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		(PCIMEM_BASE + (unsigned long)(a))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		((a) + PCIMEM_BASE)
 #else
 
-static inline unsigned long ___mem_pci(unsigned long a)
+static inline void __iomem *___mem_pci(void __iomem *p)
 {
+	unsigned long a = (unsigned long)p;
 	BUG_ON(a <= 0xc0000000 || a >= 0xe0000000);
-	return a;
+	return p;
 }
 
-static inline unsigned long ___mem_isa(unsigned long a)
+static inline void __iomem *___mem_isa(void __iomem *p)
 {
+	unsigned long a = (unsigned long)p;
 	BUG_ON(a >= 16*1048576);
-	return PCIMEM_BASE + a;
+	return p + PCIMEM_BASE;
 }
-#define __mem_pci(a)		___mem_pci((unsigned long)(a))
-#define __mem_isa(a)		___mem_isa((unsigned long)(a))
+#define __mem_pci(a)		___mem_pci(a)
+#define __mem_isa(a)		___mem_isa(a)
 #endif
 
 #endif

include/asm-arm/arch-epxa10db/io.h

@@ -33,7 +33,7 @@
 #define insw    __arch_readsw
 #define insl    __arch_readsl*/
 
-#define __io(a)			(a)
+#define __io(a)			((void __iomem *)(a))
 #define __mem_pci(a)            (a) 
 
 #endif

include/asm-arm/arch-h720x/io.h

@@ -18,7 +18,7 @@
 
 #define IO_SPACE_LIMIT 0xffffffff
 
-#define __io(a) (a)
-#define __mem_pci(a) (a)
+#define __io(a)		((void __iomem *)(a))
+#define __mem_pci(a)	(a)
 
 #endif

include/asm-arm/arch-imx/io.h

@@ -22,7 +22,7 @@
 
 #define IO_SPACE_LIMIT 0xffffffff
 
-#define __io(a)       (a)
-#define __mem_pci(a)  (a)
+#define __io(a)		((void __iomem *)(a))
+#define __mem_pci(a)	(a)
 
 #endif

include/asm-arm/arch-integrator/io.h

@@ -22,8 +22,8 @@
 
 #define IO_SPACE_LIMIT 0xffff
 
-#define __io(a)			(PCI_IO_VADDR + (a))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		(PCI_MEMORY_VADDR + (unsigned long)(a))
+#define __io(a)			((void __iomem *)(PCI_IO_VADDR + (a)))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		((a) + PCI_MEMORY_VADDR)
 
 #endif

include/asm-arm/arch-iop3xx/io.h

@@ -13,8 +13,8 @@
 
 #define IO_SPACE_LIMIT 0xffffffff
 
-#define __io(p)			((p))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(p)			((void __iomem *)(p))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 #endif

include/asm-arm/arch-ixp2000/io.h

@@ -16,7 +16,7 @@
 #define __ASM_ARM_ARCH_IO_H
 
 #define IO_SPACE_LIMIT		0xffffffff
-#define __mem_pci(a)		((unsigned long)(a))
+#define __mem_pci(a)		(a)
 
 /*
  * Pick up VMALLOC_END

include/asm-arm/arch-ixp4xx/io.h

@@ -46,7 +46,7 @@ extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
  */
 #ifndef	CONFIG_IXP4XX_INDIRECT_PCI
 
-#define __mem_pci(a)		((unsigned long)(a))
+#define __mem_pci(a)		(a)
 
 #else
 
@@ -58,10 +58,10 @@ extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data);
  * access registers. If something outside of PCI is ioremap'd, we
  * fallback to the default.
  */
-static inline void *
+static inline void __iomem *
 __ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags, unsigned long align)
 {
-	extern void * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
+	extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
 	if((addr < 0x48000000) || (addr > 0x4fffffff))
 		return __ioremap(addr, size, flags, align);
 
@@ -69,9 +69,9 @@ __ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags, unsigned
 }
 
 static inline void
-__ixp4xx_iounmap(void *addr)
+__ixp4xx_iounmap(void __iomem *addr)
 {
-	extern void __iounmap(void *addr);
+	extern void __iounmap(void __iomem *addr);
 
 	if ((u32)addr >= VMALLOC_START)
 		__iounmap(addr);

include/asm-arm/arch-l7200/io.h

@@ -17,9 +17,9 @@
 /*
  * There are not real ISA nor PCI buses, so we fake it.
  */
-#define __io_pci(a)             (PCIO_BASE + (a))
-#define __mem_pci(a)            ((unsigned long)(a))
-#define __mem_isa(a)            ((unsigned long)(a))
+#define __io_pci(a)		((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 #define __ioaddr(p)             __io_pci(p)
 

include/asm-arm/arch-lh7a40x/io.h

@@ -14,8 +14,8 @@
 #define IO_SPACE_LIMIT 0xffffffff
 
 /* No ISA or PCI bus on this machine. */
-#define __io(a)			(a)
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(a))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 #endif /* __ASM_ARCH_IO_H */

include/asm-arm/arch-omap/io.h

@@ -40,9 +40,9 @@
  * We don't actually have real ISA nor PCI buses, but there is so many
  * drivers out there that might just work if we fake them...
  */
-#define __io(a)			(PCIO_BASE + (a))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 /*
  * ----------------------------------------------------------------------------

include/asm-arm/arch-pxa/io.h

@@ -12,8 +12,8 @@
  * We don't actually have real ISA nor PCI buses, but there is so many
  * drivers out there that might just work if we fake them...
  */
-#define __io(a)			(a)
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(a))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 #endif

include/asm-arm/arch-rpc/io.h

@@ -250,6 +250,6 @@ DECLARE_IO(int,l,"")
 /*
  * 1:1 mapping for ioremapped regions.
  */
-#define __mem_pci(x)	((unsigned long)(x))
+#define __mem_pci(x)	(x)
 
 #endif

include/asm-arm/arch-sa1100/io.h

@@ -16,8 +16,8 @@
  * We don't actually have real ISA nor PCI buses, but there is so many 
  * drivers out there that might just work if we fake them...
  */
-#define __io(a)			(PCIO_BASE + (a))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 #endif

include/asm-arm/arch-shark/io.h

@@ -170,7 +170,7 @@ DECLARE_IO(long,l,"")
 	addr;									\
 })
 
-#define __mem_pci(addr) addr
+#define __mem_pci(addr) (addr)
 
 #define inb(p)	 	(__builtin_constant_p((p)) ? __inbc(p)    : __inb(p))
 #define inw(p)	 	(__builtin_constant_p((p)) ? __inwc(p)    : __inw(p))

include/asm-arm/arch-versatile/io.h

@@ -22,8 +22,8 @@
 
 #define IO_SPACE_LIMIT 0xffff
 
-#define __io(a)			((a))
-#define __mem_pci(a)		((unsigned long)(a))
-#define __mem_isa(a)		((unsigned long)(a))
+#define __io(a)			((void __iomem *)(a))
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		(a)
 
 #endif

include/asm-arm/io.h

@@ -39,21 +39,21 @@
  * Generic IO read/write.  These perform native-endian accesses.  Note
  * that some architectures will want to re-define __raw_{read,write}w.
  */
-extern void __raw_writesb(unsigned int addr, const void *data, int bytelen);
-extern void __raw_writesw(unsigned int addr, const void *data, int wordlen);
-extern void __raw_writesl(unsigned int addr, const void *data, int longlen);
+extern void __raw_writesb(void __iomem *addr, const void *data, int bytelen);
+extern void __raw_writesw(void __iomem *addr, const void *data, int wordlen);
+extern void __raw_writesl(void __iomem *addr, const void *data, int longlen);
 
-extern void __raw_readsb(unsigned int addr, void *data, int bytelen);
-extern void __raw_readsw(unsigned int addr, void *data, int wordlen);
-extern void __raw_readsl(unsigned int addr, void *data, int longlen);
+extern void __raw_readsb(void __iomem *addr, void *data, int bytelen);
+extern void __raw_readsw(void __iomem *addr, void *data, int wordlen);
+extern void __raw_readsl(void __iomem *addr, void *data, int longlen);
 
-#define __raw_writeb(v,a)	(*(volatile unsigned char  *)(a) = (v))
-#define __raw_writew(v,a)	(*(volatile unsigned short *)(a) = (v))
-#define __raw_writel(v,a)	(*(volatile unsigned int   *)(a) = (v))
+#define __raw_writeb(v,a)	(*(volatile unsigned char __force  *)(a) = (v))
+#define __raw_writew(v,a)	(*(volatile unsigned short __force *)(a) = (v))
+#define __raw_writel(v,a)	(*(volatile unsigned int __force   *)(a) = (v))
 
-#define __raw_readb(a)		(*(volatile unsigned char  *)(a))
-#define __raw_readw(a)		(*(volatile unsigned short *)(a))
-#define __raw_readl(a)		(*(volatile unsigned int   *)(a))
+#define __raw_readb(a)		(*(volatile unsigned char __force  *)(a))
+#define __raw_readw(a)		(*(volatile unsigned short __force *)(a))
+#define __raw_readl(a)		(*(volatile unsigned int __force   *)(a))
 
 /*
  * Bad read/write accesses...
@@ -156,17 +156,17 @@ extern void _memset_io(void __iomem *, int, size_t);
 #define readw_relaxed(addr) readw(addr)
 #define readl_relaxed(addr) readl(addr)
 
-#define readsb(p,d,l)		__raw_readsb((unsigned int)__mem_pci(p),d,l)
-#define readsw(p,d,l)		__raw_readsw((unsigned int)__mem_pci(p),d,l)
-#define readsl(p,d,l)		__raw_readsl((unsigned int)__mem_pci(p),d,l)
+#define readsb(p,d,l)		__raw_readsb(__mem_pci(p),d,l)
+#define readsw(p,d,l)		__raw_readsw(__mem_pci(p),d,l)
+#define readsl(p,d,l)		__raw_readsl(__mem_pci(p),d,l)
 
 #define writeb(v,c)		__raw_writeb(v,__mem_pci(c))
 #define writew(v,c)		__raw_writew(cpu_to_le16(v),__mem_pci(c))
 #define writel(v,c)		__raw_writel(cpu_to_le32(v),__mem_pci(c))
 
-#define writesb(p,d,l)		__raw_writesb((unsigned int)__mem_pci(p),d,l)
-#define writesw(p,d,l)		__raw_writesw((unsigned int)__mem_pci(p),d,l)
-#define writesl(p,d,l)		__raw_writesl((unsigned int)__mem_pci(p),d,l)
+#define writesb(p,d,l)		__raw_writesb(__mem_pci(p),d,l)
+#define writesw(p,d,l)		__raw_writesw(__mem_pci(p),d,l)
+#define writesl(p,d,l)		__raw_writesl(__mem_pci(p),d,l)
 
 #define memset_io(c,v,l)	_memset_io(__mem_pci(c),(v),(l))
 #define memcpy_fromio(a,c,l)	_memcpy_fromio((a),__mem_pci(c),(l))
@@ -268,8 +268,8 @@ isa_check_signature(unsigned long io_addr, const unsigned char *signature,
  * ioremap takes a PCI memory address, as specified in
  * Documentation/IO-mapping.txt.
  */
-extern void * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
-extern void __iounmap(void *addr);
+extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
+extern void __iounmap(void __iomem *addr);
 
 #ifndef __arch_ioremap
 #define ioremap(cookie,size)		__ioremap(cookie,size,0,1)