[ARM] 4127/1: Flush the prefetch buffer after changing the DACR

The ARM Architecture Reference Manual specifies that a prefetch flush
is needed after changing the DACR register (chapter B2.7.6).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/asm-arm/domain.h b/include/asm-arm/domain.h
index 4c2885abbe6c..3c12a7625304 100644
--- a/include/asm-arm/domain.h
+++ b/include/asm-arm/domain.h
@@ -57,6 +57,7 @@
         __asm__ __volatile__(                           \
         "mcr    p15, 0, %0, c3, c0      @ set domain"   \
           : : "r" (x));                                 \
+        isb();                                          \
         } while (0)
 
 #define modify_domain(dom,type)                                 \