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Commit a41297a0 authored by Russell King's avatar Russell King
Browse files

ARM: v6k: select generic atomic64 code according to V6 variants 



If CONFIG_CPU_V6 is enabled, avoid using the double-word exclusive
instructions in the kernel's atomic implementations as these are not
supported.  Fall back to the generic spinlock code instead.

Acked-by: default avatarTony Lindgren <tony@atomide.com>
Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Tested-by: default avatarSourav Poddar <sourav.poddar@ti.com>
Tested-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 4ed67a53

arch/arm/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -7,7 +7,7 @@ config ARM 
	select HAVE_MEMBLOCK

	select RTC_LIB

	select SYS_SUPPORTS_APM_EMULATION

	select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)

	select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)

	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)

	select HAVE_ARCH_KGDB

	select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)