1 files changed, 0 insertions, 114 deletions
diff --git a/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002i.patch b/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002i.patch
deleted file mode 100644
index 0733908..0000000
--- a/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002i.patch
+++ /dev/null
@@ -1,114 +0,0 @@
---- b/kernel/cpu.c
-+++ a/kernel/cpu.c
-@@ -54,7 +54,6 @@
- 	bool			rollback;
- 	bool			single;
- 	bool			bringup;
--	bool			booted_once;
- 	struct hlist_node	*node;
- 	enum cpuhp_state	cb_state;
- 	int			result;
-@@ -356,40 +355,6 @@
- EXPORT_SYMBOL_GPL(cpu_hotplug_enable);
- #endif	/* CONFIG_HOTPLUG_CPU */
- 
--#ifdef CONFIG_HOTPLUG_SMT
--enum cpuhp_smt_control cpu_smt_control __read_mostly = CPU_SMT_ENABLED;
--
--static int __init smt_cmdline_disable(char *str)
--{
--	cpu_smt_control = CPU_SMT_DISABLED;
--	if (str && !strcmp(str, "force")) {
--		pr_info("SMT: Force disabled\n");
--		cpu_smt_control = CPU_SMT_FORCE_DISABLED;
--	}
--	return 0;
--}
--early_param("nosmt", smt_cmdline_disable);
--
--static inline bool cpu_smt_allowed(unsigned int cpu)
--{
--	if (cpu_smt_control == CPU_SMT_ENABLED)
--		return true;
--
--	if (topology_is_primary_thread(cpu))
--		return true;
--
--	/*
--	 * On x86 it's required to boot all logical CPUs at least once so
--	 * that the init code can get a chance to set CR4.MCE on each
--	 * CPU. Otherwise, a broadacasted MCE observing CR4.MCE=0b on any
--	 * core will shutdown the machine.
--	 */
--	return !per_cpu(cpuhp_state, cpu).booted_once;
--}
--#else
--static inline bool cpu_smt_allowed(unsigned int cpu) { return true; }
--#endif
--
- /* Need to know about CPUs going up/down? */
- int register_cpu_notifier(struct notifier_block *nb)
- {
-@@ -466,16 +431,6 @@
- 	stop_machine_unpark(cpu);
- 	kthread_unpark(st->thread);
- 
--	/*
--	 * SMT soft disabling on X86 requires to bring the CPU out of the
--	 * BIOS 'wait for SIPI' state in order to set the CR4.MCE bit.  The
--	 * CPU marked itself as booted_once in cpu_notify_starting() so the
--	 * cpu_smt_allowed() check will now return false if this is not the
--	 * primary sibling.
--	 */
--	if (!cpu_smt_allowed(cpu))
--		return -ECANCELED;
--
- 	/* Should we go further up ? */
- 	if (st->target > CPUHP_AP_ONLINE_IDLE) {
- 		__cpuhp_kick_ap_work(st);
-@@ -1023,6 +978,29 @@
- EXPORT_SYMBOL(cpu_down);
- #endif /*CONFIG_HOTPLUG_CPU*/
- 
-+#ifdef CONFIG_HOTPLUG_SMT
-+enum cpuhp_smt_control cpu_smt_control __read_mostly = CPU_SMT_ENABLED;
-+
-+static int __init smt_cmdline_disable(char *str)
-+{
-+	cpu_smt_control = CPU_SMT_DISABLED;
-+	if (str && !strcmp(str, "force")) {
-+		pr_info("SMT: Force disabled\n");
-+		cpu_smt_control = CPU_SMT_FORCE_DISABLED;
-+	}
-+	return 0;
-+}
-+early_param("nosmt", smt_cmdline_disable);
-+
-+static inline bool cpu_smt_allowed(unsigned int cpu)
-+{
-+	return cpu_smt_control == CPU_SMT_ENABLED ||
-+		topology_is_primary_thread(cpu);
-+}
-+#else
-+static inline bool cpu_smt_allowed(unsigned int cpu) { return true; }
-+#endif
-+
- /**
-  * notify_cpu_starting(cpu) - Invoke the callbacks on the starting CPU
-  * @cpu: cpu that just started
-@@ -1036,7 +1014,6 @@
- 	enum cpuhp_state target = min((int)st->target, CPUHP_AP_ONLINE);
- 
- 	rcu_cpu_starting(cpu);	/* Enables RCU usage on this CPU. */
--	st->booted_once = true;
- 	while (st->state < target) {
- 		st->state++;
- 		cpuhp_invoke_callback(cpu, st->state, true, NULL);
-@@ -2137,6 +2114,5 @@
-  */
- void __init boot_cpu_hotplug_init(void)
- {
-+	per_cpu_ptr(&cpuhp_state, smp_processor_id())->state = CPUHP_ONLINE;
--	this_cpu_write(cpuhp_state.booted_once, true);
--	this_cpu_write(cpuhp_state.state, CPUHP_ONLINE);
- }