Merge branch 'linus' into x86/urgent

Merge reason: Needed for include file dependencies.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 211 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c24xx/include/mach/io.h b/arch/arm/mach-s3c24xx/include/mach/io.h
new file mode 100644
index 000000000000..5dd1db4e2677
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/include/mach/io.h
@@ -0,0 +1,211 @@
+/*
+ * arch/arm/mach-s3c2410/include/mach/io.h
+ *  from arch/arm/mach-rpc/include/mach/io.h
+ *
+ * Copyright (C) 1997 Russell King
+ *	     (C) 2003 Simtec Electronics
+*/
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include <mach/hardware.h>
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We use two different types of addressing - PC style addresses, and ARM
+ * addresses.  PC style accesses the PC hardware with the normal PC IO
+ * addresses, eg 0x3f8 for serial#1.  ARM addresses are above A28
+ * and are translated to the start of IO.  Note that all addresses are
+ * not shifted left!
+ */
+
+#define __PORT_PCIO(x)	((x) < (1<<28))
+
+#define PCIO_BASE	 (S3C24XX_VA_ISA_WORD)
+#define PCIO_BASE_b	 (S3C24XX_VA_ISA_BYTE)
+#define PCIO_BASE_w	 (S3C24XX_VA_ISA_WORD)
+#define PCIO_BASE_l	 (S3C24XX_VA_ISA_WORD)
+/*
+ * Dynamic IO functions - let the compiler
+ * optimize the expressions
+ */
+
+#define DECLARE_DYN_OUT(sz,fnsuffix,instr) \
+static inline void __out##fnsuffix (unsigned int val, unsigned int port) \
+{ \
+	unsigned long temp;				      \
+	__asm__ __volatile__(				      \
+	"cmp	%2, #(1<<28)\n\t"			      \
+	"mov	%0, %2\n\t"				      \
+	"addcc	%0, %0, %3\n\t"				      \
+	"str" instr " %1, [%0, #0 ]	@ out" #fnsuffix      \
+	: "=&r" (temp)					      \
+	: "r" (val), "r" (port), "Ir" (PCIO_BASE_##fnsuffix)  \
+	: "cc");					      \
+}
+
+
+#define DECLARE_DYN_IN(sz,fnsuffix,instr)				\
+static inline unsigned sz __in##fnsuffix (unsigned int port)		\
+{									\
+	unsigned long temp, value;					\
+	__asm__ __volatile__(						\
+	"cmp	%2, #(1<<28)\n\t"					\
+	"mov	%0, %2\n\t"						\
+	"addcc	%0, %0, %3\n\t"						\
+	"ldr" instr "	%1, [%0, #0 ]	@ in" #fnsuffix		\
+	: "=&r" (temp), "=r" (value)					\
+	: "r" (port), "Ir" (PCIO_BASE_##fnsuffix)	\
+	: "cc");							\
+	return (unsigned sz)value;					\
+}
+
+static inline void __iomem *__ioaddr (unsigned long port)
+{
+	return __PORT_PCIO(port) ? (PCIO_BASE + port) : (void __iomem *)port;
+}
+
+#define DECLARE_IO(sz,fnsuffix,instr)	\
+	DECLARE_DYN_IN(sz,fnsuffix,instr) \
+	DECLARE_DYN_OUT(sz,fnsuffix,instr)
+
+DECLARE_IO(char,b,"b")
+DECLARE_IO(short,w,"h")
+DECLARE_IO(int,l,"")
+
+#undef DECLARE_IO
+#undef DECLARE_DYN_IN
+
+/*
+ * Constant address IO functions
+ *
+ * These have to be macros for the 'J' constraint to work -
+ * +/-4096 immediate operand.
+ */
+#define __outbc(value,port)						\
+({									\
+	if (__PORT_PCIO((port)))					\
+		__asm__ __volatile__(					\
+		"strb	%0, [%1, %2]	@ outbc"			\
+		: : "r" (value), "r" (PCIO_BASE), "Jr" ((port)));	\
+	else								\
+		__asm__ __volatile__(					\
+		"strb	%0, [%1, #0]	@ outbc"			\
+		: : "r" (value), "r" ((port)));				\
+})
+
+#define __inbc(port)							\
+({									\
+	unsigned char result;						\
+	if (__PORT_PCIO((port)))					\
+		__asm__ __volatile__(					\
+		"ldrb	%0, [%1, %2]	@ inbc"				\
+		: "=r" (result) : "r" (PCIO_BASE), "Jr" ((port)));	\
+	else								\
+		__asm__ __volatile__(					\
+		"ldrb	%0, [%1, #0]	@ inbc"				\
+		: "=r" (result) : "r" ((port)));			\
+	result;								\
+})
+
+#define __outwc(value,port)						\
+({									\
+	unsigned long v = value;					\
+	if (__PORT_PCIO((port))) {					\
+		if ((port) < 256 && (port) > -256)			\
+			__asm__ __volatile__(				\
+			"strh	%0, [%1, %2]	@ outwc"		\
+			: : "r" (v), "r" (PCIO_BASE), "Jr" ((port)));	\
+		else if ((port) > 0)					\
+			__asm__ __volatile__(				\
+			"strh	%0, [%1, %2]	@ outwc"		\
+			: : "r" (v),					\
+			    "r" (PCIO_BASE + ((port) & ~0xff)),		\
+			     "Jr" (((port) & 0xff)));			\
+		else							\
+			__asm__ __volatile__(				\
+			"strh	%0, [%1, #0]	@ outwc"		\
+			: : "r" (v),					\
+			    "r" (PCIO_BASE + (port)));			\
+	} else								\
+		__asm__ __volatile__(					\
+		"strh	%0, [%1, #0]	@ outwc"			\
+		: : "r" (v), "r" ((port)));				\
+})
+
+#define __inwc(port)							\
+({									\
+	unsigned short result;						\
+	if (__PORT_PCIO((port))) {					\
+		if ((port) < 256 && (port) > -256 )			\
+			__asm__ __volatile__(				\
+			"ldrh	%0, [%1, %2]	@ inwc"			\
+			: "=r" (result)					\
+			: "r" (PCIO_BASE),				\
+			  "Jr" ((port)));				\
+		else if ((port) > 0)					\
+			__asm__ __volatile__(				\
+			"ldrh	%0, [%1, %2]	@ inwc"			\
+			: "=r" (result)					\
+			: "r" (PCIO_BASE + ((port) & ~0xff)),		\
+			  "Jr" (((port) & 0xff)));			\
+		else							\
+			__asm__ __volatile__(				\
+			"ldrh	%0, [%1, #0]	@ inwc"			\
+			: "=r" (result)					\
+			: "r" (PCIO_BASE + ((port))));			\
+	} else								\
+		__asm__ __volatile__(					\
+		"ldrh	%0, [%1, #0]	@ inwc"				\
+		: "=r" (result) : "r" ((port)));			\
+	result;								\
+})
+
+#define __outlc(value,port)						\
+({									\
+	unsigned long v = value;					\
+	if (__PORT_PCIO((port)))					\
+		__asm__ __volatile__(					\
+		"str	%0, [%1, %2]	@ outlc"			\
+		: : "r" (v), "r" (PCIO_BASE), "Jr" ((port)));	\
+	else								\
+		__asm__ __volatile__(					\
+		"str	%0, [%1, #0]	@ outlc"			\
+		: : "r" (v), "r" ((port)));		\
+})
+
+#define __inlc(port)							\
+({									\
+	unsigned long result;						\
+	if (__PORT_PCIO((port)))					\
+		__asm__ __volatile__(					\
+		"ldr	%0, [%1, %2]	@ inlc"				\
+		: "=r" (result) : "r" (PCIO_BASE), "Jr" ((port)));	\
+	else								\
+		__asm__ __volatile__(					\
+		"ldr	%0, [%1, #0]	@ inlc"				\
+		: "=r" (result) : "r" ((port)));		\
+	result;								\
+})
+
+#define __ioaddrc(port)	((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)(port)))
+
+#define inb(p)		(__builtin_constant_p((p)) ? __inbc(p)	   : __inb(p))
+#define inw(p)		(__builtin_constant_p((p)) ? __inwc(p)	   : __inw(p))
+#define inl(p)		(__builtin_constant_p((p)) ? __inlc(p)	   : __inl(p))
+#define outb(v,p)	(__builtin_constant_p((p)) ? __outbc(v,p) : __outb(v,p))
+#define outw(v,p)	(__builtin_constant_p((p)) ? __outwc(v,p) : __outw(v,p))
+#define outl(v,p)	(__builtin_constant_p((p)) ? __outlc(v,p) : __outl(v,p))
+#define __ioaddr(p)	(__builtin_constant_p((p)) ? __ioaddr(p)  : __ioaddrc(p))
+
+#define insb(p,d,l)	__raw_readsb(__ioaddr(p),d,l)
+#define insw(p,d,l)	__raw_readsw(__ioaddr(p),d,l)
+#define insl(p,d,l)	__raw_readsl(__ioaddr(p),d,l)
+
+#define outsb(p,d,l)	__raw_writesb(__ioaddr(p),d,l)
+#define outsw(p,d,l)	__raw_writesw(__ioaddr(p),d,l)
+#define outsl(p,d,l)	__raw_writesl(__ioaddr(p),d,l)
+
+#endif