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authorVineet Gupta <vgupta@synopsys.com>2016-01-29 16:47:44 +0530
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-07-27 09:47:31 -0700
commitf06a5a019b1161da6f47bde5e7ce63e70193caec (patch)
treef710221f908a52e8a1562570ada5db0d22fb2193 /arch/arc
parent9c458a866844793b040ef496b635b2816b6ce31a (diff)
ARCv2: Check for LL-SC livelock only if LLSC is enabled
commit 4d0cb15fccd1db9dac0c964b2ccf10874e69f5b8 upstream. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/kernel/setup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index e1b87444ea9a..87ddeeb03f60 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -334,6 +334,7 @@ static void arc_chk_core_config(void)
panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic &&
+ IS_ENABLED(CONFIG_ARC_HAS_LLSC) &&
!IS_ENABLED(CONFIG_ARC_STAR_9000923308))
panic("llock/scond livelock workaround missing\n");
}