X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Flinux%2Fio.h;h=81877ea39309aea73cef4a63a3212c69ab5c9131;hb=refs%2Fheads%2Fvserver;hp=85533ec5aaa17f4146452a16ef61ca40fc601c80;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/include/linux/io.h b/include/linux/io.h
index 85533ec5a..81877ea39 100644
--- a/include/linux/io.h
+++ b/include/linux/io.h
@@ -18,8 +18,41 @@
 #ifndef _LINUX_IO_H
 #define _LINUX_IO_H
 
+#include <linux/types.h>
 #include <asm/io.h>
+#include <asm/page.h>
 
 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
+void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
+
+int ioremap_page_range(unsigned long addr, unsigned long end,
+		       unsigned long phys_addr, pgprot_t prot);
+
+/**
+ *	check_signature		-	find BIOS signatures
+ *	@io_addr: mmio address to check
+ *	@signature:  signature block
+ *	@length: length of signature
+ *
+ *	Perform a signature comparison with the mmio address io_addr. This
+ *	address should have been obtained by ioremap.
+ *	Returns 1 on a match.
+ */
+
+static inline int check_signature(const volatile void __iomem *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 /* _LINUX_IO_H */