diff options
Diffstat (limited to 'arch/ia64/kernel/process.c')
| -rw-r--r-- | arch/ia64/kernel/process.c | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 640d690..e9904c7 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -4,6 +4,9 @@ * Copyright (C) 1998-2003 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> * 04/11/17 Ashok Raj <ashok.raj@intel.com> Added CPU Hotplug Support + * + * 2005-10-07 Keith Owens <kaos@sgi.com> + * Add notify_die() hooks. */ #define __KERNEL_SYSCALLS__ /* see <asm/unistd.h> */ #include <linux/config.h> @@ -34,6 +37,7 @@ #include <asm/elf.h> #include <asm/ia32.h> #include <asm/irq.h> +#include <asm/kdebug.h> #include <asm/pgalloc.h> #include <asm/processor.h> #include <asm/sal.h> @@ -198,12 +202,9 @@ default_idle (void) { local_irq_enable(); while (!need_resched()) { - if (can_do_pal_halt) { - local_irq_disable(); - if (!need_resched()) - safe_halt(); - local_irq_enable(); - } else + if (can_do_pal_halt) + safe_halt(); + else cpu_relax(); } } @@ -268,10 +269,14 @@ cpu_idle (void) { void (*mark_idle)(int) = ia64_mark_idle; int cpu = smp_processor_id(); - set_thread_flag(TIF_POLLING_NRFLAG); /* endless idle loop with no priority at all */ while (1) { + if (can_do_pal_halt) + clear_thread_flag(TIF_POLLING_NRFLAG); + else + set_thread_flag(TIF_POLLING_NRFLAG); + if (!need_resched()) { void (*idle)(void); #ifdef CONFIG_SMP @@ -713,18 +718,16 @@ kernel_thread_helper (int (*fn)(void *), void *arg) void flush_thread (void) { - /* - * Remove function-return probe instances associated with this task - * and put them back on the free list. Do not insert an exit probe for - * this function, it will be disabled by kprobe_flush_task if you do. - */ - kprobe_flush_task(current); - /* drop floating-point and debug-register state if it exists: */ current->thread.flags &= ~(IA64_THREAD_FPH_VALID | IA64_THREAD_DBG_VALID); ia64_drop_fpu(current); - if (IS_IA32_PROCESS(ia64_task_regs(current))) +#ifdef CONFIG_IA32_SUPPORT + if (IS_IA32_PROCESS(ia64_task_regs(current))) { ia32_drop_partial_page_list(current); + current->thread.task_size = IA32_PAGE_OFFSET; + set_fs(USER_DS); + } +#endif } /* @@ -808,12 +811,14 @@ cpu_halt (void) void machine_restart (char *restart_cmd) { + (void) notify_die(DIE_MACHINE_RESTART, restart_cmd, NULL, 0, 0, 0); (*efi.reset_system)(EFI_RESET_WARM, 0, 0, NULL); } void machine_halt (void) { + (void) notify_die(DIE_MACHINE_HALT, "", NULL, 0, 0, 0); cpu_halt(); } |
