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-rw-r--r--arch/x86/kernel/apic/io_apic.c36
1 files changed, 5 insertions, 31 deletions
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 08b794d07a5..4fc544dcf7f 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -2887,37 +2887,11 @@ static int __init io_apic_bug_finalize(void)
late_initcall(io_apic_bug_finalize);
-static void suspend_ioapic(int ioapic_id)
+static void resume_ioapic_id(int ioapic_id)
{
- struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id];
- int i;
-
- if (!saved_data)
- return;
-
- for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++)
- saved_data[i] = ioapic_read_entry(ioapic_id, i);
-}
-
-static int ioapic_suspend(void)
-{
- int ioapic_id;
-
- for (ioapic_id = 0; ioapic_id < nr_ioapics; ioapic_id++)
- suspend_ioapic(ioapic_id);
-
- return 0;
-}
-
-static void resume_ioapic(int ioapic_id)
-{
- struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id];
unsigned long flags;
union IO_APIC_reg_00 reg_00;
- int i;
- if (!saved_data)
- return;
raw_spin_lock_irqsave(&ioapic_lock, flags);
reg_00.raw = io_apic_read(ioapic_id, 0);
@@ -2926,8 +2900,6 @@ static void resume_ioapic(int ioapic_id)
io_apic_write(ioapic_id, 0, reg_00.raw);
}
raw_spin_unlock_irqrestore(&ioapic_lock, flags);
- for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++)
- ioapic_write_entry(ioapic_id, i, saved_data[i]);
}
static void ioapic_resume(void)
@@ -2935,11 +2907,13 @@ static void ioapic_resume(void)
int ioapic_id;
for (ioapic_id = nr_ioapics - 1; ioapic_id >= 0; ioapic_id--)
- resume_ioapic(ioapic_id);
+ resume_ioapic_id(ioapic_id);
+
+ restore_ioapic_entries();
}
static struct syscore_ops ioapic_syscore_ops = {
- .suspend = ioapic_suspend,
+ .suspend = save_ioapic_entries,
.resume = ioapic_resume,
};