[ARM] nommu: we need the TLS register emulation for nommu mode

Since there can be no fixed location for the TLS value with nommu
systems, we must provide TLS register emulation in order to support
TLS binaries on CPUs without the thread register.

Part of a patch from Hyok S. Choi, and cleaned up by rmk.

Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index ecf5e232a6fc2a3e0d6c419ca918933bdacd2fd3..068ada6466d6ee01e5876153f9d8243140fb896f 100644 (file)
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -277,17 +277,17 @@ config CPU_32v6K
 # This defines the compiler instruction set which depends on the machine type.
 config CPU_32v3
        bool
-       select TLS_REG_EMUL if SMP
+       select TLS_REG_EMUL if SMP || !MMU
        select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
 
 config CPU_32v4
        bool
-       select TLS_REG_EMUL if SMP
+       select TLS_REG_EMUL if SMP || !MMU
        select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
 
 config CPU_32v5
        bool
-       select TLS_REG_EMUL if SMP
+       select TLS_REG_EMUL if SMP || !MMU
        select NEEDS_SYSCALL_FOR_CMPXCHG if SMP
 
 config CPU_32v6