patch-2.4.2 linux/include/asm-arm/arch-rpc/io.h

• Lines: 84
• Date: Thu Feb 8 16:32:44 2001
• Orig file: v2.4.1/linux/include/asm-arm/arch-rpc/io.h
• Orig date: Mon Sep 18 15:15:23 2000

diff -u --recursive --new-file v2.4.1/linux/include/asm-arm/arch-rpc/io.h linux/include/asm-arm/arch-rpc/io.h
@@ -16,6 +16,49 @@
 #define IO_SPACE_LIMIT 0xffffffff
 
 /*
+ * GCC is totally crap at loading/storing data.  We try to persuade it
+ * to do the right thing by using these whereever possible instead of
+ * the above.
+ */
+#define __arch_base_getb(b,o)			\
+ ({						\
+	unsigned int v, r = (b);		\
+	__asm__ __volatile__(			\
+		"ldrb	%0, [%1, %2]"		\
+		: "=r" (v)			\
+		: "r" (r), "Ir" (o));		\
+	v;					\
+ })
+
+#define __arch_base_getl(b,o)			\
+ ({						\
+	unsigned int v, r = (b);		\
+	__asm__ __volatile__(			\
+		"ldr	%0, [%1, %2]"		\
+		: "=r" (v)			\
+		: "r" (r), "Ir" (o));		\
+	v;					\
+ })
+
+#define __arch_base_putb(v,b,o)			\
+ ({						\
+	unsigned int r = (b);			\
+	__asm__ __volatile__(			\
+		"strb	%0, [%1, %2]"		\
+		:				\
+		: "r" (v), "r" (r), "Ir" (o));	\
+ })
+
+#define __arch_base_putl(v,b,o)			\
+ ({						\
+	unsigned int r = (b);			\
+	__asm__ __volatile__(			\
+		"str	%0, [%1, %2]"		\
+		:				\
+		: "r" (v), "r" (r), "Ir" (o));	\
+ })
+
+/*
  * 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 0x80000000+
@@ -74,7 +117,7 @@
 	"tst	%2, #0x80000000\n\t"						\
 	"mov	%0, %4\n\t"							\
 	"addeq	%0, %0, %3\n\t"							\
-	"ldr" ##instr## "	%1, [%0, %2, lsl #2]	@ in"###fnsuffix	\
+	"ldr" instr "	%1, [%0, %2, lsl #2]	@ in" #fnsuffix			\
 	: "=&r" (temp), "=r" (value)						\
 	: "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)		\
 	: "cc");								\
@@ -195,22 +238,7 @@
 #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))
-
-/*
- * Translated address IO functions
- *
- * IO address has already been translated to a virtual address
- */
-#define outb_t(v,p)								\
-	(*(volatile unsigned char *)(p) = (v))
-
-#define inb_t(p)								\
-	(*(volatile unsigned char *)(p))
-
-#define outl_t(v,p)								\
-	(*(volatile unsigned long *)(p) = (v))
-
-#define inl_t(p)								\
-	(*(volatile unsigned long *)(p))
+/* the following macro is depreciated */
+#define ioaddr(port)			__ioaddr((port))
 
 #endif