#include <asm/kdebug.h>
#include <asm/mca.h>
-#include <asm/uaccess.h>
int kdump_status[NR_CPUS];
-atomic_t kdump_cpu_freezed;
+static atomic_t kdump_cpu_frozen;
atomic_t kdump_in_progress;
-int kdump_on_init = 1;
-ssize_t
-copy_oldmem_page(unsigned long pfn, char *buf,
- size_t csize, unsigned long offset, int userbuf)
-{
- void *vaddr;
-
- if (!csize)
- return 0;
- vaddr = __va(pfn<<PAGE_SHIFT);
- if (userbuf) {
- if (copy_to_user(buf, (vaddr + offset), csize)) {
- return -EFAULT;
- }
- } else
- memcpy(buf, (vaddr + offset), csize);
- return csize;
-}
+static int kdump_on_init = 1;
static inline Elf64_Word
*append_elf_note(Elf64_Word *buf, char *name, unsigned type, void *data,
static DEFINE_PER_CPU(struct elf_prstatus, elf_prstatus);
void
-crash_save_this_cpu()
+crash_save_this_cpu(void)
{
void *buf;
unsigned long cfm, sof, sol;
final_note(buf);
}
+#ifdef CONFIG_SMP
static int
kdump_wait_cpu_freeze(void)
{
int cpu_num = num_online_cpus() - 1;
int timeout = 1000;
while(timeout-- > 0) {
- if (atomic_read(&kdump_cpu_freezed) == cpu_num)
+ if (atomic_read(&kdump_cpu_frozen) == cpu_num)
return 0;
udelay(1000);
}
return 1;
}
+#endif
void
machine_crash_shutdown(struct pt_regs *pt)
kexec_disable_iosapic();
#ifdef CONFIG_SMP
kdump_smp_send_stop();
+ /* not all cpu response to IPI, send INIT to freeze them */
if (kdump_wait_cpu_freeze() && kdump_on_init) {
- //not all cpu response to IPI, send INIT to freeze them
kdump_smp_send_init();
}
#endif
static void
machine_kdump_on_init(void)
{
+ if (!ia64_kimage) {
+ printk(KERN_NOTICE "machine_kdump_on_init(): "
+ "kdump not configured\n");
+ return;
+ }
local_irq_disable();
kexec_disable_iosapic();
machine_kexec(ia64_kimage);
cpuid = smp_processor_id();
crash_save_this_cpu();
current->thread.ksp = (__u64)info->sw - 16;
- atomic_inc(&kdump_cpu_freezed);
+ atomic_inc(&kdump_cpu_frozen);
kdump_status[cpuid] = 1;
mb();
- if (cpuid == 0) {
- for (;;)
- cpu_relax();
- } else
+#ifdef CONFIG_HOTPLUG_CPU
+ if (cpuid != 0)
ia64_jump_to_sal(&sal_boot_rendez_state[cpuid]);
+#endif
+ for (;;)
+ cpu_relax();
}
static int
nd = (struct ia64_mca_notify_die *)args->err;
/* Reason code 1 means machine check rendezous*/
- if ((val == DIE_INIT_MONARCH_ENTER || DIE_INIT_SLAVE_ENTER) &&
+ if ((val == DIE_INIT_MONARCH_ENTER || val == DIE_INIT_SLAVE_ENTER) &&
nd->sos->rv_rc == 1)
return NOTIFY_DONE;
static int
machine_crash_setup(void)
{
- char *from = strstr(saved_command_line, "elfcorehdr=");
static struct notifier_block kdump_init_notifier_nb = {
.notifier_call = kdump_init_notifier,
};
int ret;
- if (from)
- elfcorehdr_addr = memparse(from+11, &from);
- saved_max_pfn = (unsigned long)-1;
if((ret = register_die_notifier(&kdump_init_notifier_nb)) != 0)
return ret;
#ifdef CONFIG_SYSCTL
- register_sysctl_table(sys_table, 0);
+ register_sysctl_table(sys_table);
#endif
return 0;
}