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Commit b31ac426 authored by Vineet Gupta's avatar Vineet Gupta
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ARCv2: LLSC: software backoff is NOT needed starting HS2.1c 

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent c2ff5cf2
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Showing with 1 addition and 6 deletions
arch/arc/Kconfig
View file @ b31ac426
...@@ -387,7 +387,7 @@ config ARC_HAS_LLSC ...@@ -387,7 +387,7 @@ config ARC_HAS_LLSC
config ARC_STAR_9000923308 config ARC_STAR_9000923308
bool "Workaround for llock/scond livelock" bool "Workaround for llock/scond livelock"
default y default n
depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC depends on ISA_ARCV2 && SMP && ARC_HAS_LLSC
config ARC_HAS_SWAPE config ARC_HAS_SWAPE
......
arch/arc/kernel/setup.c
View file @ b31ac426
...@@ -357,11 +357,6 @@ static void arc_chk_core_config(void) ...@@ -357,11 +357,6 @@ static void arc_chk_core_config(void)
pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n"); pr_warn("CONFIG_ARC_FPU_SAVE_RESTORE needed for working apps\n");
else if (!cpu->extn.fpu_dp && fpu_enabled) else if (!cpu->extn.fpu_dp && fpu_enabled)
panic("FPU non-existent, disable CONFIG_ARC_FPU_SAVE_RESTORE\n"); 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");
} }
/* /*
......
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