locking/atomic: nds32: move to ARCH_ATOMIC

We'd like all architectures to convert to ARCH_ATOMIC, as once all
architectures are converted it will be possible to make significant
cleanups to the atomics headers, and this will make it much easier to
generically enable atomic functionality (e.g. debug logic in the
instrumented wrappers).

As a step towards that, this patch migrates nds32 to ARCH_ATOMIC, using
the asm-generic implementations.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Greentime Hu <green.hu@gmail.com>
Cc: Nick Hu <nickhu@andestech.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Vincent Chen <deanbo422@gmail.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210525140232.53872-24-mark.rutland@arm.com

diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index 62313902d75d9e80a8f5c69959b12993b878e9a0..352913573aee0bbe30482ab82f74e2275ce0a647 100644 (file)
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -7,6 +7,7 @@
 config NDS32
        def_bool y
        select ARCH_32BIT_OFF_T
+       select ARCH_ATOMIC
        select ARCH_HAS_DMA_PREP_COHERENT
        select ARCH_HAS_SYNC_DMA_FOR_CPU
        select ARCH_HAS_SYNC_DMA_FOR_DEVICE