[MIPS] Hook for platforms to define cachability of /dev/mem regions
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index cc9a9d0..7e082bc 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -75,6 +75,13 @@
* On ia64, we ignore O_SYNC because we cannot tolerate memory attribute aliases.
*/
return !(efi_mem_attributes(addr) & EFI_MEMORY_WB);
+#elif defined(CONFIG_MIPS)
+ {
+ extern int __uncached_access(struct file *file,
+ unsigned long addr);
+
+ return __uncached_access(file, addr);
+ }
#else
/*
* Accessing memory above the top the kernel knows about or through a file pointer