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Diffstat (limited to 'recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002j.patch')
-rw-r--r--recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002j.patch239
1 files changed, 0 insertions, 239 deletions
diff --git a/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002j.patch b/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002j.patch
deleted file mode 100644
index b98ae77..0000000
--- a/recipes-kernel/linux/linux-toradex-rt-4.9-2.3.x/002j.patch
+++ /dev/null
@@ -1,239 +0,0 @@
---- b/arch/Kconfig
-+++ a/arch/Kconfig
-@@ -5,9 +5,6 @@
- config KEXEC_CORE
- bool
-
--config HOTPLUG_SMT
-- bool
--
- config OPROFILE
- tristate "OProfile system profiling"
- depends on PROFILING
---- b/arch/x86/Kconfig
-+++ a/arch/x86/Kconfig
-@@ -147,7 +147,6 @@
- select HAVE_UID16 if X86_32 || IA32_EMULATION
- select HAVE_UNSTABLE_SCHED_CLOCK
- select HAVE_USER_RETURN_NOTIFIER
-- select HOTPLUG_SMT if SMP
- select IRQ_FORCED_THREADING
- select MODULES_USE_ELF_RELA if X86_64
- select MODULES_USE_ELF_REL if X86_32
---- b/include/linux/cpu.h
-+++ a/include/linux/cpu.h
-@@ -257,17 +257,4 @@
- static inline void cpuhp_report_idle_dead(void) { }
- #endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
--enum cpuhp_smt_control {
-- CPU_SMT_ENABLED,
-- CPU_SMT_DISABLED,
-- CPU_SMT_FORCE_DISABLED,
-- CPU_SMT_NOT_SUPPORTED,
--};
--
--#if defined(CONFIG_SMP) && defined(CONFIG_HOTPLUG_SMT)
--extern enum cpuhp_smt_control cpu_smt_control;
--#else
--# define cpu_smt_control (CPU_SMT_ENABLED)
--#endif
--
- #endif /* _LINUX_CPU_H_ */
---- b/kernel/cpu.c
-+++ a/kernel/cpu.c
-@@ -978,29 +978,6 @@
- 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
-@@ -1119,10 +1096,6 @@
- err = -EBUSY;
- goto out;
- }
-- if (!cpu_smt_allowed(cpu)) {
-- err = -EPERM;
-- goto out;
-- }
-
- err = _cpu_up(cpu, 0, target);
- out:
-@@ -1869,153 +1842,10 @@
- NULL
- };
-
--#ifdef CONFIG_HOTPLUG_SMT
--
--static const char *smt_states[] = {
-- [CPU_SMT_ENABLED] = "on",
-- [CPU_SMT_DISABLED] = "off",
-- [CPU_SMT_FORCE_DISABLED] = "forceoff",
-- [CPU_SMT_NOT_SUPPORTED] = "notsupported",
--};
--
--static ssize_t
--show_smt_control(struct device *dev, struct device_attribute *attr, char *buf)
--{
-- return snprintf(buf, PAGE_SIZE - 2, "%s\n", smt_states[cpu_smt_control]);
--}
--
--static void cpuhp_offline_cpu_device(unsigned int cpu)
--{
-- struct device *dev = get_cpu_device(cpu);
--
-- dev->offline = true;
-- /* Tell user space about the state change */
-- kobject_uevent(&dev->kobj, KOBJ_OFFLINE);
--}
--
--static int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval)
--{
-- int cpu, ret = 0;
--
-- cpu_maps_update_begin();
-- for_each_online_cpu(cpu) {
-- if (topology_is_primary_thread(cpu))
-- continue;
-- ret = cpu_down_maps_locked(cpu, CPUHP_OFFLINE);
-- if (ret)
-- break;
-- /*
-- * As this needs to hold the cpu maps lock it's impossible
-- * to call device_offline() because that ends up calling
-- * cpu_down() which takes cpu maps lock. cpu maps lock
-- * needs to be held as this might race against in kernel
-- * abusers of the hotplug machinery (thermal management).
-- *
-- * So nothing would update device:offline state. That would
-- * leave the sysfs entry stale and prevent onlining after
-- * smt control has been changed to 'off' again. This is
-- * called under the sysfs hotplug lock, so it is properly
-- * serialized against the regular offline usage.
-- */
-- cpuhp_offline_cpu_device(cpu);
-- }
-- if (!ret)
-- cpu_smt_control = ctrlval;
-- cpu_maps_update_done();
-- return ret;
--}
--
--static void cpuhp_smt_enable(void)
--{
-- cpu_maps_update_begin();
-- cpu_smt_control = CPU_SMT_ENABLED;
-- cpu_maps_update_done();
--}
--
--static ssize_t
--store_smt_control(struct device *dev, struct device_attribute *attr,
-- const char *buf, size_t count)
--{
-- int ctrlval, ret;
--
-- if (sysfs_streq(buf, "on"))
-- ctrlval = CPU_SMT_ENABLED;
-- else if (sysfs_streq(buf, "off"))
-- ctrlval = CPU_SMT_DISABLED;
-- else if (sysfs_streq(buf, "forceoff"))
-- ctrlval = CPU_SMT_FORCE_DISABLED;
-- else
-- return -EINVAL;
--
-- if (cpu_smt_control == CPU_SMT_FORCE_DISABLED)
-- return -EPERM;
--
-- if (cpu_smt_control == CPU_SMT_NOT_SUPPORTED)
-- return -ENODEV;
--
-- ret = lock_device_hotplug_sysfs();
-- if (ret)
-- return ret;
--
-- if (ctrlval != cpu_smt_control) {
-- switch (ctrlval) {
-- case CPU_SMT_ENABLED:
-- cpuhp_smt_enable();
-- break;
-- case CPU_SMT_DISABLED:
-- case CPU_SMT_FORCE_DISABLED:
-- ret = cpuhp_smt_disable(ctrlval);
-- break;
-- }
-- }
--
-- unlock_device_hotplug();
-- return ret ? ret : count;
--}
--static DEVICE_ATTR(control, 0644, show_smt_control, store_smt_control);
--
--static ssize_t
--show_smt_active(struct device *dev, struct device_attribute *attr, char *buf)
--{
-- bool active = topology_max_smt_threads() > 1;
--
-- return snprintf(buf, PAGE_SIZE - 2, "%d\n", active);
--}
--static DEVICE_ATTR(active, 0444, show_smt_active, NULL);
--
--static struct attribute *cpuhp_smt_attrs[] = {
-- &dev_attr_control.attr,
-- &dev_attr_active.attr,
-- NULL
--};
--
--static const struct attribute_group cpuhp_smt_attr_group = {
-- .attrs = cpuhp_smt_attrs,
-- .name = "smt",
-- NULL
--};
--
--static int __init cpu_smt_state_init(void)
--{
-- if (!topology_smt_supported())
-- cpu_smt_control = CPU_SMT_NOT_SUPPORTED;
--
-- return sysfs_create_group(&cpu_subsys.dev_root->kobj,
-- &cpuhp_smt_attr_group);
--}
--
--#else
--static inline int cpu_smt_state_init(void) { return 0; }
--#endif
--
- static int __init cpuhp_sysfs_init(void)
- {
- int cpu, ret;
-
-- ret = cpu_smt_state_init();
-- if (ret)
-- return ret;
--
- ret = sysfs_create_group(&cpu_subsys.dev_root->kobj,
- &cpuhp_cpu_root_attr_group);
- if (ret)