patch-2.0.21-2.1.0 linux/include/asm-alpha/io.h

• Lines: 43
• Date: Mon Sep 30 16:52:20 1996
• Orig file: lx2.0/v2.0.21/linux/include/asm-alpha/io.h
• Orig date: Tue Jun 4 06:06:38 1996

diff -u --recursive --new-file lx2.0/v2.0.21/linux/include/asm-alpha/io.h linux/include/asm-alpha/io.h
@@ -152,7 +152,19 @@
 /*
  * The "address" in IO memory space is not clearly either a integer or a
  * pointer. We will accept both, thus the casts.
+ *
+ * On the alpha, we have the whole physical address space mapped at all
+ * times, so "ioremap()" and "iounmap()" do not need to do anything.
  */
+extern inline void * ioremap(unsigned long offset, unsigned long size)
+{
+	return (void *) offset;
+} 
+
+extern inline void iounmap(void *addr)
+{
+}
+
 #ifndef readb
 # define readb(a)	_readb((unsigned long)(a))
 #endif
@@ -202,6 +214,22 @@
  */
 
 #define eth_io_copy_and_sum(skb,src,len,unused)	memcpy_fromio((skb)->data,(src),(len))
+
+static inline int check_signature(unsigned long io_addr,
+	const unsigned char *signature, int length)
+{
+	int retval = 0;
+	do {
+		if (readb(io_addr) != *signature)
+			goto out;
+		io_addr++;
+		signature++;
+		length--;
+	} while (length);
+	retval = 1;
+out:
+	return retval;
+}
 
 #endif /* __KERNEL__ */