[PATCH 11/14] ARM: v6k: use CPU domain feature if we include support for arch < ARMv6K

Russell King - ARM Linux linux at arm.linux.org.uk
Mon Jan 17 14:24:44 EST 2011


Rather than turning off CPU domain switching when the build architecture
includes ARMv6K, thereby causing problems for ARMv6-supporting kernels,
turn it on when it's required to support a CPU architecture.

Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
---
 arch/arm/mm/Kconfig |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 22a3f4a..29215f5 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -435,25 +435,30 @@ config CPU_32v3
 	bool
 	select TLS_REG_EMUL if SMP || !MMU
 	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+	select CPU_USE_DOMAINS if MMU
 
 config CPU_32v4
 	bool
 	select TLS_REG_EMUL if SMP || !MMU
 	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+	select CPU_USE_DOMAINS if MMU
 
 config CPU_32v4T
 	bool
 	select TLS_REG_EMUL if SMP || !MMU
 	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+	select CPU_USE_DOMAINS if MMU
 
 config CPU_32v5
 	bool
 	select TLS_REG_EMUL if SMP || !MMU
 	select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
+	select CPU_USE_DOMAINS if MMU
 
 config CPU_32v6
 	bool
 	select TLS_REG_EMUL if !CPU_32v6K && !MMU
+	select CPU_USE_DOMAINS if CPU_V6 && MMU
 
 config CPU_32v6K
 	bool "Support ARM V6K processor extensions" if !SMP
@@ -620,8 +625,6 @@ config CPU_CP15_MPU
 
 config CPU_USE_DOMAINS
 	bool
-	depends on MMU
-	default y if !CPU_32v6K
 	help
 	  This option enables or disables the use of domain switching
 	  via the set_fs() function.
-- 
1.6.2.5




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