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[v2,3/4] MIPS: Select ARCH_SUPPORTS_ATOMIC_RMW when possible

Message ID 20240612-mips-llsc-v2-3-a42bd5562bdb@flygoat.com (mailing list archive)
State New
Headers show
Series MIPS: Enable ARCH_SUPPORTS_ATOMIC_RMW | expand

Commit Message

Jiaxun Yang June 12, 2024, 9:53 a.m. UTC 
Select ARCH_SUPPORTS_ATOMIC_RMW when we are certain that our CPU
have LLSC support.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 arch/mips/Kconfig | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 50260a7e9b54..e83036580a47 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -23,6 +23,7 @@  config MIPS
 	select ARCH_USE_MEMTEST
 	select ARCH_USE_QUEUED_RWLOCKS
 	select ARCH_USE_QUEUED_SPINLOCKS
+	select ARCH_SUPPORTS_ATOMIC_RMW if CPU_HAS_LLSC
 	select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
 	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
 	select ARCH_WANT_IPC_PARSE_VERSION