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[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>
Catalin Marinas пре 18 година
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620879c9e3
1 измењених фајлова са 1 додато и 0 уклоњено
  1. 1 0
      include/asm-arm/domain.h

+ 1 - 0
include/asm-arm/domain.h

@@ -57,6 +57,7 @@
 	__asm__ __volatile__(				\
 	__asm__ __volatile__(				\
 	"mcr	p15, 0, %0, c3, c0	@ set domain"	\
 	"mcr	p15, 0, %0, c3, c0	@ set domain"	\
 	  : : "r" (x));					\
 	  : : "r" (x));					\
+	isb();						\
 	} while (0)
 	} while (0)
 
 
 #define modify_domain(dom,type)					\
 #define modify_domain(dom,type)					\