ARM: use TLS register for 'current' on !SMP as well

Enable the use of the TLS register to hold the 'current' pointer also on
non-SMP configurations that target v6k or later CPUs. This will permit
the use of THREAD_INFO_IN_TASK as well as IRQ stacks and vmap'ed stacks
for such configurations.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Pitre <nico@fluxnic.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com> # ARMv7M

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b0e4030..5ad2151 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1154,7 +1154,7 @@ config SMP_ON_UP
 
 config CURRENT_POINTER_IN_TPIDRURO
        def_bool y
-       depends on SMP && CPU_32v6K && !CPU_V6
+       depends on CPU_32v6K && !CPU_V6
 
 config IRQSTACKS
        def_bool y