Commit ec953b70 authored May 04, 2016 by Vladimir Murzin Committed by Russell King May 05, 2016

ARM: 8573/1: domain: move {set,get}_domain under config guard



Recursive undefined instrcution falut is seen with R-class taking an
exception. The reson for that is __show_regs() tries to get domain
information, but domains is not available on !MMU cores, like R/M
class.

Fix it by puting {set,get}_domain functions under CONFIG_CPU_CP15_MMU
guard and providing stubs for the case where domains is not supported.

Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 5b526bd9

arch/arm/include/asm/domain.h

+11 −0

Original line number	Diff line number	Diff line
		@@ -84,6 +84,7 @@

		#ifndef __ASSEMBLY__

		#ifdef CONFIG_CPU_CP15_MMU
		static inline unsigned int get_domain(void)
		{
		unsigned int domain;
		@@ -103,6 +104,16 @@ static inline void set_domain(unsigned val)
		: : "r" (val) : "memory");
		isb();
		}
		#else
		static inline unsigned int get_domain(void)
		{
		return 0;
		}

		static inline void set_domain(unsigned val)
		{
		}
		#endif

		#ifdef CONFIG_CPU_USE_DOMAINS
		#define modify_domain(dom,type) \