x86/acpi: move setup io apic routing out of CONFIG_ACPI scope

So we could set io apic routing when ACPI is not enabled.

[ Impact: prepare for new functionality ]

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Len Brown <lenb@kernel.org>
LKML-Reference: <4A01C422.5070400@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 27bd2fd..6fd99f9 100644 (file)
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -154,10 +154,10 @@ extern int timer_through_8259;
 extern int io_apic_get_unique_id(int ioapic, int apic_id);
 extern int io_apic_get_version(int ioapic);
 extern int io_apic_get_redir_entries(int ioapic);
-extern int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin,
-                                 int irq, int edge_level, int active_high_low);
 #endif /* CONFIG_ACPI */
 
+extern int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin,
+                                 int irq, int edge_level, int active_high_low);
 extern int (*ioapic_renumber_irq)(int ioapic, int irq);
 extern void ioapic_init_mappings(void);
 

diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index caf9dbd..3a68dae 100644 (file)
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -3839,6 +3839,67 @@ int __init arch_probe_nr_irqs(void)
 }
 #endif
 
+static int __io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
+                                int triggering, int polarity)
+{
+       struct irq_desc *desc;
+       struct irq_cfg *cfg;
+       int node;
+
+       if (!IO_APIC_IRQ(irq)) {
+               apic_printk(APIC_QUIET,KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
+                       ioapic);
+               return -EINVAL;
+       }
+
+       if (dev)
+               node = dev_to_node(dev);
+       else
+               node = cpu_to_node(boot_cpu_id);
+
+       desc = irq_to_desc_alloc_node(irq, node);
+       if (!desc) {
+               printk(KERN_INFO "can not get irq_desc %d\n", irq);
+               return 0;
+       }
+
+       /*
+        * IRQs < 16 are already in the irq_2_pin[] map
+        */
+       if (irq >= NR_IRQS_LEGACY) {
+               cfg = desc->chip_data;
+               add_pin_to_irq_node(cfg, node, ioapic, pin);
+       }
+
+       setup_IO_APIC_irq(ioapic, pin, irq, desc, triggering, polarity);
+
+       return 0;
+}
+
+static struct {
+       DECLARE_BITMAP(pin_programmed, MP_MAX_IOAPIC_PIN + 1);
+} mp_ioapic_routing[MAX_IO_APICS];
+
+int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
+                                int triggering, int polarity)
+{
+
+       /*
+        * Avoid pin reprogramming.  PRTs typically include entries
+        * with redundant pin->gsi mappings (but unique PCI devices);
+        * we only program the IOAPIC on the first.
+        */
+       if (test_bit(pin, mp_ioapic_routing[ioapic].pin_programmed)) {
+               pr_debug("Pin %d-%d already programmed\n",
+                        mp_ioapics[ioapic].apicid, pin);
+               return 0;
+       }
+       set_bit(pin, mp_ioapic_routing[ioapic].pin_programmed);
+
+       return __io_apic_set_pci_routing(dev, ioapic, pin, irq,
+                                        triggering, polarity);
+}
+
 /* --------------------------------------------------------------------------
                           ACPI-based IOAPIC Configuration
    -------------------------------------------------------------------------- */
@@ -3933,67 +3994,6 @@ int __init io_apic_get_version(int ioapic)
 }
 #endif
 
-static int __io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
-                                int triggering, int polarity)
-{
-       struct irq_desc *desc;
-       struct irq_cfg *cfg;
-       int node;
-
-       if (!IO_APIC_IRQ(irq)) {
-               apic_printk(APIC_QUIET,KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
-                       ioapic);
-               return -EINVAL;
-       }
-
-       if (dev)
-               node = dev_to_node(dev);
-       else
-               node = cpu_to_node(boot_cpu_id);
-
-       desc = irq_to_desc_alloc_node(irq, node);
-       if (!desc) {
-               printk(KERN_INFO "can not get irq_desc %d\n", irq);
-               return 0;
-       }
-
-       /*
-        * IRQs < 16 are already in the irq_2_pin[] map
-        */
-       if (irq >= NR_IRQS_LEGACY) {
-               cfg = desc->chip_data;
-               add_pin_to_irq_node(cfg, node, ioapic, pin);
-       }
-
-       setup_IO_APIC_irq(ioapic, pin, irq, desc, triggering, polarity);
-
-       return 0;
-}
-
-static struct {
-       DECLARE_BITMAP(pin_programmed, MP_MAX_IOAPIC_PIN + 1);
-} mp_ioapic_routing[MAX_IO_APICS];
-
-int io_apic_set_pci_routing(struct device *dev, int ioapic, int pin, int irq,
-                                int triggering, int polarity)
-{
-
-       /*
-        * Avoid pin reprogramming.  PRTs typically include entries
-        * with redundant pin->gsi mappings (but unique PCI devices);
-        * we only program the IOAPIC on the first.
-        */
-       if (test_bit(pin, mp_ioapic_routing[ioapic].pin_programmed)) {
-               pr_debug("Pin %d-%d already programmed\n",
-                        mp_ioapics[ioapic].apicid, pin);
-               return 0;
-       }
-       set_bit(pin, mp_ioapic_routing[ioapic].pin_programmed);
-
-       return __io_apic_set_pci_routing(dev, ioapic, pin, irq,
-                                        triggering, polarity);
-}
-
 int acpi_get_override_irq(int bus_irq, int *trigger, int *polarity)
 {
        int i;