sh: TLB miss fast-path optimizations.

Handle simple TLB miss faults which can be resolved completely
from the page table in assembler.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index a03f155..48308dc 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -379,6 +379,9 @@
 	  See <file:Documentation/sh/register-banks.txt> for further
 	  information on SR.RB and register banking in the kernel in general.
 
+config CPU_HAS_PTEA
+	bool
+
 endmenu
 
 menu "Timer support"