patch-2.1.48 linux/drivers/char/mem.c

• Lines: 11
• Date: Thu Jul 31 13:09:17 1997
• Orig file: v2.1.47/linux/drivers/char/mem.c
• Orig date: Thu Jul 17 10:06:04 1997

diff -u --recursive --new-file v2.1.47/linux/drivers/char/mem.c linux/drivers/char/mem.c
@@ -133,6 +133,10 @@
 	if (x86 > 3 && offset >= __pa(high_memory))
 		pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
 #endif
+#ifdef __powerpc__
+	if (offset >= __pa(high_memory))
+		pgprot_val(vma->vm_page_prot) |= _PAGE_NO_CACHE | _PAGE_GUARDED;
+#endif
 	if (remap_page_range(vma->vm_start, offset, vma->vm_end - vma->vm_start, vma->vm_page_prot))
 		return -EAGAIN;
 	vma->vm_dentry = dget(file->f_dentry);