ARC: boards: enable ticket spinlock on nsim SMP board

evgeniy-paltsev · carlescufi · commit 85256a2c192d · 2023-11-06T10:13:54.000+01:00
Enable ticket spinlock on nsim SMP board as they are
naturally vulnerable to spinlock unfairness due to
SMP nSIM way of work.

Signed-off-by: Eugeniy Paltsev &lt;Eugeniy.Paltsev@synopsys.com&gt;
Signed-off-by: Evgeniy Paltsev &lt;PaltsevEvgeniy@gmail.com&gt;
diff --git a/boards/arc/nsim/nsim_hs5x_smp_12cores_defconfig b/boards/arc/nsim/nsim_hs5x_smp_12cores_defconfig
@@ -15,3 +15,4 @@ CONFIG_SERIAL=y
 CONFIG_ARC_EXCEPTION_DEBUG=y
 CONFIG_SMP=y
 CONFIG_MP_MAX_NUM_CPUS=12
+CONFIG_TICKET_SPINLOCKS=y
diff --git a/boards/arc/nsim/nsim_hs5x_smp_defconfig b/boards/arc/nsim/nsim_hs5x_smp_defconfig
@@ -15,3 +15,4 @@ CONFIG_SERIAL=y
 CONFIG_ARC_EXCEPTION_DEBUG=y
 CONFIG_SMP=y
 CONFIG_MP_MAX_NUM_CPUS=2
+CONFIG_TICKET_SPINLOCKS=y
diff --git a/boards/arc/nsim/nsim_hs6x_smp_12cores_defconfig b/boards/arc/nsim/nsim_hs6x_smp_12cores_defconfig
@@ -15,3 +15,4 @@ CONFIG_SERIAL=y
 CONFIG_ARC_EXCEPTION_DEBUG=y
 CONFIG_SMP=y
 CONFIG_MP_MAX_NUM_CPUS=12
+CONFIG_TICKET_SPINLOCKS=y
diff --git a/boards/arc/nsim/nsim_hs6x_smp_defconfig b/boards/arc/nsim/nsim_hs6x_smp_defconfig
@@ -15,3 +15,4 @@ CONFIG_SERIAL=y
 CONFIG_ARC_EXCEPTION_DEBUG=y
 CONFIG_SMP=y
 CONFIG_MP_MAX_NUM_CPUS=2
+CONFIG_TICKET_SPINLOCKS=y
diff --git a/boards/arc/nsim/nsim_hs_smp_defconfig b/boards/arc/nsim/nsim_hs_smp_defconfig
@@ -14,3 +14,4 @@ CONFIG_SERIAL=y
 CONFIG_ARC_EXCEPTION_DEBUG=y
 CONFIG_SMP=y
 CONFIG_MP_MAX_NUM_CPUS=2
+CONFIG_TICKET_SPINLOCKS=y
