fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / linux / io.h

diff --git a/include/linux/io.h b/include/linux/io.h
index 85533ec..81877ea 100644 (file)
--- 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 */