[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>

diff --git a/include/asm-arm/domain.h b/include/asm-arm/domain.h
index 4c2885abbe6c950f04d06c6345bb6358f591421b..3c12a7625304d24d19bcb9e469c5b5bbcca8faef 100644 (file)
--- 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)                                        \