ARCv2: LLSC: software backoff is NOT needed starting HS2.1c
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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@ -387,7 +387,7 @@ config ARC_HAS_LLSC
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config ARC_STAR_9000923308
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config ARC_STAR_9000923308
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bool "Workaround for llock/scond livelock"
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bool "Workaround for llock/scond livelock"
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default y
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default n
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depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC
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depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC
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config ARC_HAS_SWAPE
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config ARC_HAS_SWAPE
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@ -357,11 +357,6 @@ static void arc_chk_core_config(void)
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pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n");
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pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n");
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else if (!cpu->extn.fpu_dp && fpu_enabled)
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else if (!cpu->extn.fpu_dp && fpu_enabled)
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panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
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panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n");
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if (is_isa_arcv2() && IS_ENABLED(CONFIG_SMP) && cpu->isa.atomic &&
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IS_ENABLED(CONFIG_ARC_HAS_LLSC) &&
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!IS_ENABLED(CONFIG_ARC_STAR_9000923308))
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panic("llock/scond livelock workaround missing\n");
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}
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}
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/*
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/*
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