diff options
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.patch | 239 |
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) |