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

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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
This commit is contained in:
Ard Biesheuvel
2021-11-26 10:13:06 +01:00
parent 7b9896c352
commit b87cf9118e
1 changed files with 1 additions and 1 deletions
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arch/arm/Kconfig
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@@ -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