diff options
Diffstat (limited to 'arch/mn10300')
-rw-r--r-- | arch/mn10300/include/asm/thread_info.h | 2 | ||||
-rw-r--r-- | arch/mn10300/include/asm/unistd.h | 10 | ||||
-rw-r--r-- | arch/mn10300/include/uapi/asm/socket.h | 2 | ||||
-rw-r--r-- | arch/mn10300/kernel/process.c | 71 | ||||
-rw-r--r-- | arch/mn10300/kernel/smp.c | 7 | ||||
-rw-r--r-- | arch/mn10300/kernel/traps.c | 11 | ||||
-rw-r--r-- | arch/mn10300/mm/init.c | 23 |
7 files changed, 12 insertions, 114 deletions
diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h index f90062b..224b426 100644 --- a/arch/mn10300/include/asm/thread_info.h +++ b/arch/mn10300/include/asm/thread_info.h @@ -165,8 +165,6 @@ void arch_release_thread_info(struct thread_info *ti); #define _TIF_WORK_MASK 0x0000FFFE /* work to do on interrupt/exception return */ #define _TIF_ALLWORK_MASK 0x0000FFFF /* work to do on any return to u-space */ -#define tsk_is_polling(t) test_tsk_thread_flag(t, TIF_POLLING_NRFLAG) - #endif /* __KERNEL__ */ #endif /* _ASM_THREAD_INFO_H */ diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h index 7f9d9ad..9d4e2d1 100644 --- a/arch/mn10300/include/asm/unistd.h +++ b/arch/mn10300/include/asm/unistd.h @@ -45,14 +45,4 @@ #define __ARCH_WANT_SYS_VFORK #define __ARCH_WANT_SYS_CLONE -/* - * "Conditional" syscalls - * - * What we want is __attribute__((weak,alias("sys_ni_syscall"))), - * but it doesn't work on all toolchains, so we just do it by hand - */ -#ifndef cond_syscall -#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall"); -#endif - #endif /* _ASM_UNISTD_H */ diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h index 5c7c7c9..b4ce844 100644 --- a/arch/mn10300/include/uapi/asm/socket.h +++ b/arch/mn10300/include/uapi/asm/socket.h @@ -72,4 +72,6 @@ #define SO_LOCK_FILTER 44 +#define SO_SELECT_ERR_QUEUE 45 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c index 84f4e97..3707da5 100644 --- a/arch/mn10300/kernel/process.c +++ b/arch/mn10300/kernel/process.c @@ -50,77 +50,19 @@ unsigned long thread_saved_pc(struct task_struct *tsk) void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); -#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) -/* - * we use this if we don't have any better idle routine - */ -static void default_idle(void) -{ - local_irq_disable(); - if (!need_resched()) - safe_halt(); - else - local_irq_enable(); -} - -#else /* !CONFIG_SMP || CONFIG_HOTPLUG_CPU */ /* * On SMP it's slightly faster (but much more power-consuming!) * to poll the ->work.need_resched flag instead of waiting for the * cross-CPU IPI to arrive. Use this option with caution. + * + * tglx: No idea why this depends on HOTPLUG_CPU !?! */ -static inline void poll_idle(void) -{ - int oldval; - - local_irq_enable(); - - /* - * Deal with another CPU just having chosen a thread to - * run here: - */ - oldval = test_and_clear_thread_flag(TIF_NEED_RESCHED); - - if (!oldval) { - set_thread_flag(TIF_POLLING_NRFLAG); - while (!need_resched()) - cpu_relax(); - clear_thread_flag(TIF_POLLING_NRFLAG); - } else { - set_need_resched(); - } -} -#endif /* !CONFIG_SMP || CONFIG_HOTPLUG_CPU */ - -/* - * the idle thread - * - there's no useful work to be done, so just try to conserve power and have - * a low exit latency (ie sit in a loop waiting for somebody to say that - * they'd like to reschedule) - */ -void cpu_idle(void) +#if !defined(CONFIG_SMP) || defined(CONFIG_HOTPLUG_CPU) +void arch_cpu_idle(void) { - /* endless idle loop with no priority at all */ - for (;;) { - rcu_idle_enter(); - while (!need_resched()) { - void (*idle)(void); - - smp_rmb(); - if (!idle) { -#if defined(CONFIG_SMP) && !defined(CONFIG_HOTPLUG_CPU) - idle = poll_idle; -#else /* CONFIG_SMP && !CONFIG_HOTPLUG_CPU */ - idle = default_idle; -#endif /* CONFIG_SMP && !CONFIG_HOTPLUG_CPU */ - } - idle(); - } - rcu_idle_exit(); - - schedule_preempt_disabled(); - } + safe_halt(); } +#endif void release_segments(struct mm_struct *mm) { @@ -155,6 +97,7 @@ void machine_power_off(void) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); } /* diff --git a/arch/mn10300/kernel/smp.c b/arch/mn10300/kernel/smp.c index 5d7e152..a17f9c9 100644 --- a/arch/mn10300/kernel/smp.c +++ b/arch/mn10300/kernel/smp.c @@ -675,7 +675,7 @@ int __init start_secondary(void *unused) #ifdef CONFIG_GENERIC_CLOCKEVENTS init_clockevents(); #endif - cpu_idle(); + cpu_startup_entry(CPUHP_ONLINE); return 0; } @@ -935,8 +935,6 @@ int __cpu_up(unsigned int cpu, struct task_struct *tidle) int timeout; #ifdef CONFIG_HOTPLUG_CPU - if (num_online_cpus() == 1) - disable_hlt(); if (sleep_mode[cpu]) run_wakeup_cpu(cpu); #endif /* CONFIG_HOTPLUG_CPU */ @@ -1003,9 +1001,6 @@ int __cpu_disable(void) void __cpu_die(unsigned int cpu) { run_sleep_cpu(cpu); - - if (num_online_cpus() == 1) - enable_hlt(); } #ifdef CONFIG_MN10300_CACHE_ENABLED diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index b900e5a..a7a987c 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -294,17 +294,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) } /* - * the architecture-independent dump_stack generator - */ -void dump_stack(void) -{ - unsigned long stack; - - show_stack(current, &stack); -} -EXPORT_SYMBOL(dump_stack); - -/* * dump the register file in the specified exception frame */ void show_registers_only(struct pt_regs *regs) diff --git a/arch/mn10300/mm/init.c b/arch/mn10300/mm/init.c index e57e5bc..5a8ace6 100644 --- a/arch/mn10300/mm/init.c +++ b/arch/mn10300/mm/init.c @@ -139,30 +139,11 @@ void __init mem_init(void) } /* - * - */ -void free_init_pages(char *what, unsigned long begin, unsigned long end) -{ - unsigned long addr; - - for (addr = begin; addr < end; addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - memset((void *) addr, 0xcc, PAGE_SIZE); - free_page(addr); - totalram_pages++; - } - printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); -} - -/* * recycle memory containing stuff only required for initialisation */ void free_initmem(void) { - free_init_pages("unused kernel memory", - (unsigned long) &__init_begin, - (unsigned long) &__init_end); + free_initmem_default(POISON_FREE_INITMEM); } /* @@ -171,6 +152,6 @@ void free_initmem(void) #ifdef CONFIG_BLK_DEV_INITRD void free_initrd_mem(unsigned long start, unsigned long end) { - free_init_pages("initrd memory", start, end); + free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd"); } #endif |