unsigned long boot_option_idle_override = 0;
EXPORT_SYMBOL(boot_option_idle_override);
+unsigned long idle_halt;
+EXPORT_SYMBOL(idle_halt);
void
ia64_do_show_stack (struct unw_frame_info *info, void *arg)
clear_ti_thread_flag(task_thread_info(tsk), TIF_NOTIFY_RESUME);
}
+/*
+ * do_notify_resume_user():
+ * Called from notify_resume_user at entry.S, with interrupts disabled.
+ */
void
-do_notify_resume_user (sigset_t *unused, struct sigscratch *scr, long in_syscall)
+do_notify_resume_user(sigset_t *unused, struct sigscratch *scr, long in_syscall)
{
if (fsys_mode(current, &scr->pt)) {
- /* defer signal-handling etc. until we return to privilege-level 0. */
+ /*
+ * defer signal-handling etc. until we return to
+ * privilege-level 0.
+ */
if (!ia64_psr(&scr->pt)->lp)
ia64_psr(&scr->pt)->lp = 1;
return;
#ifdef CONFIG_PERFMON
if (current->thread.pfm_needs_checking)
+ /*
+ * Note: pfm_handle_work() allow us to call it with interrupts
+ * disabled, and may enable interrupts within the function.
+ */
pfm_handle_work();
#endif
/* deal with pending signal delivery */
- if (test_thread_flag(TIF_SIGPENDING)||test_thread_flag(TIF_RESTORE_SIGMASK))
+ if (test_thread_flag(TIF_SIGPENDING)) {
+ local_irq_enable(); /* force interrupt enable */
ia64_do_signal(scr, in_syscall);
+ }
/* copy user rbs to kernel rbs */
- if (unlikely(test_thread_flag(TIF_RESTORE_RSE)))
+ if (unlikely(test_thread_flag(TIF_RESTORE_RSE))) {
+ local_irq_enable(); /* force interrupt enable */
ia64_sync_krbs();
+ }
+
+ local_irq_disable(); /* force interrupt disable */
}
static int pal_halt = 1;
{
smp_mb();
/* kick all the CPUs so that they exit out of pm_idle */
- smp_call_function(do_nothing, NULL, 0, 1);
+ smp_call_function(do_nothing, NULL, 1);
}
EXPORT_SYMBOL_GPL(cpu_idle_wait);
do_dump_task_fpu(current, info, arg);
}
-int
-dump_task_regs(struct task_struct *task, elf_gregset_t *regs)
-{
- struct unw_frame_info tcore_info;
-
- if (current == task) {
- unw_init_running(do_copy_regs, regs);
- } else {
- memset(&tcore_info, 0, sizeof(tcore_info));
- unw_init_from_blocked_task(&tcore_info, task);
- do_copy_task_regs(task, &tcore_info, regs);
- }
- return 1;
-}
-
void
ia64_elf_core_copy_regs (struct pt_regs *pt, elf_gregset_t dst)
{
unw_init_running(do_copy_regs, dst);
}
-int
-dump_task_fpu (struct task_struct *task, elf_fpregset_t *dst)
-{
- struct unw_frame_info tcore_info;
-
- if (current == task) {
- unw_init_running(do_dump_fpu, dst);
- } else {
- memset(&tcore_info, 0, sizeof(tcore_info));
- unw_init_from_blocked_task(&tcore_info, task);
- do_dump_task_fpu(task, &tcore_info, dst);
- }
- return 1;
-}
-
int
dump_fpu (struct pt_regs *pt, elf_fpregset_t dst)
{