Changes in kernel/arch/amd64/include/asm.h [c22531fc:96b02eb9] in mainline

File:

• kernel/arch/amd64/include/asm.h (modified) (7 diffs)

kernel/arch/amd64/include/asm.h

@@ -41 +41 @@
 #include <trace.h>
 
-#define IO_SPACE_BOUNDARY       ((void *) (64 * 1024))
-
 /** Return base address of current stack.
  *
@@ -89 +87 @@
 NO_TRACE static inline uint8_t pio_read_8(ioport8_t *port)
 {
-        if (port < (ioport8_t *) IO_SPACE_BOUNDARY) {
-                uint8_t val;
-                
-                asm volatile (
-                        "inb %w[port], %b[val]\n"
-                        : [val] "=a" (val)
-                        : [port] "d" (port)
-                );
-                
-                return val;
-        } else
-                return (uint8_t) *port;
+        uint8_t val;
+        
+        asm volatile (
+                "inb %w[port], %b[val]\n"
+                : [val] "=a" (val)
+                : [port] "d" (port)
+        );
+        
+        return val;
 }
 
@@ -113 +108 @@
 NO_TRACE static inline uint16_t pio_read_16(ioport16_t *port)
 {
-        if (port < (ioport16_t *) IO_SPACE_BOUNDARY) {
-                uint16_t val;
-                
-                asm volatile (
-                        "inw %w[port], %w[val]\n"
-                        : [val] "=a" (val)
-                        : [port] "d" (port)
-                );
-                
-                return val;
-        } else
-                return (uint16_t) *port;
+        uint16_t val;
+        
+        asm volatile (
+                "inw %w[port], %w[val]\n"
+                : [val] "=a" (val)
+                : [port] "d" (port)
+        );
+        
+        return val;
 }
 
@@ -137 +129 @@
 NO_TRACE static inline uint32_t pio_read_32(ioport32_t *port)
 {
-        if (port < (ioport32_t *) IO_SPACE_BOUNDARY) {
-                uint32_t val;
-                
-                asm volatile (
-                        "inl %w[port], %[val]\n"
-                        : [val] "=a" (val)
-                        : [port] "d" (port)
-                );
-                
-                return val;
-        } else
-                return (uint32_t) *port;
+        uint32_t val;
+        
+        asm volatile (
+                "inl %w[port], %[val]\n"
+                : [val] "=a" (val)
+                : [port] "d" (port)
+        );
+        
+        return val;
 }
 
@@ -161 +150 @@
 NO_TRACE static inline void pio_write_8(ioport8_t *port, uint8_t val)
 {
-        if (port < (ioport8_t *) IO_SPACE_BOUNDARY) {
-                asm volatile (
-                        "outb %b[val], %w[port]\n"
-                        :: [val] "a" (val), [port] "d" (port)
-                );      
-        } else
-                *port = val;
+        asm volatile (
+                "outb %b[val], %w[port]\n"
+                :: [val] "a" (val),
+                   [port] "d" (port)
+        );
 }
 
@@ -180 +167 @@
 NO_TRACE static inline void pio_write_16(ioport16_t *port, uint16_t val)
 {
-        if (port < (ioport16_t *) IO_SPACE_BOUNDARY) {
-                asm volatile (
-                        "outw %w[val], %w[port]\n"
-                        :: [val] "a" (val), [port] "d" (port)
-                );
-        } else
-                *port = val;
+        asm volatile (
+                "outw %w[val], %w[port]\n"
+                :: [val] "a" (val),
+                   [port] "d" (port)
+        );
 }
 
@@ -199 +184 @@
 NO_TRACE static inline void pio_write_32(ioport32_t *port, uint32_t val)
 {
-        if (port < (ioport32_t *) IO_SPACE_BOUNDARY) {
-                asm volatile (
-                        "outl %[val], %w[port]\n"
-                        :: [val] "a" (val), [port] "d" (port)
-                );
-        } else
-                *port = val;
+        asm volatile (
+                "outl %[val], %w[port]\n"
+                :: [val] "a" (val),
+                   [port] "d" (port)
+        );
 }