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Diffstat (limited to 'arch/x86/include/asm/io.h')
-rw-r--r--arch/x86/include/asm/io.h71
1 files changed, 33 insertions, 38 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index f020510569..df4bc99ec8 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -12,44 +12,6 @@
#include <asm/byteorder.h>
-#define IO_SPACE_LIMIT 0xffff
-
-static inline void outb(unsigned char value, int port)
-{
- asm volatile("outb %b0, %w1" : : "a"(value), "Nd"(port));
-}
-
-static inline void outw(unsigned short value, int port)
-{
- asm volatile("outw %w0, %w1" : : "a"(value), "Nd"(port));
-}
-
-static inline void outl(unsigned long value, int port)
-{
- asm volatile("outl %0, %w1" : : "a"(value), "Nd"(port));
-}
-
-static inline unsigned char inb(int port)
-{
- unsigned char value;
- asm volatile("inb %w1, %b0" : "=a"(value) : "Nd"(port));
- return value;
-}
-
-static inline unsigned short inw(int port)
-{
- unsigned short value;
- asm volatile("inw %w1, %w0" : "=a"(value) : "Nd"(port));
- return value;
-}
-
-static inline unsigned long inl(int port)
-{
- unsigned long value;
- asm volatile("inl %w1, %0" : "=a"(value) : "Nd"(port));
- return value;
-}
-
#define build_mmio_read(name, size, type, reg, barrier) \
static inline type name(const volatile void *addr) \
{ type ret; asm volatile("mov" size " %1,%0":reg (ret) \
@@ -68,6 +30,39 @@ build_mmio_write(writeb, "b", unsigned char, "q", :"memory")
build_mmio_write(writew, "w", unsigned short, "r", :"memory")
build_mmio_write(writel, "l", unsigned int, "r", :"memory")
+#define BUILDIO(bwl, bw, type) \
+static inline void out##bwl(unsigned type value, int port) \
+{ \
+ asm volatile("out" #bwl " %" #bw "0, %w1" \
+ : : "a"(value), "Nd"(port)); \
+} \
+ \
+static inline unsigned type in##bwl(int port) \
+{ \
+ unsigned type value; \
+ asm volatile("in" #bwl " %w1, %" #bw "0" \
+ : "=a"(value) : "Nd"(port)); \
+ return value; \
+} \
+ \
+static inline void outs##bwl(int port, const void *addr, unsigned long count) \
+{ \
+ asm volatile("rep; outs" #bwl \
+ : "+S"(addr), "+c"(count) : "d"(port)); \
+} \
+ \
+static inline void ins##bwl(int port, void *addr, unsigned long count) \
+{ \
+ asm volatile("rep; ins" #bwl \
+ : "+D"(addr), "+c"(count) : "d"(port)); \
+}
+
+BUILDIO(b, b, char)
+BUILDIO(w, w, short)
+BUILDIO(l, , int)
+
+#define IO_SPACE_LIMIT 0xffff
+
/* do a tiny io delay */
static inline void io_delay(void)
{