x86, irq: Move IOAPIC related declarations from hw_irq.h into io_apic.h

Clean up code by moving IOAPIC related declarations from hw_irq.h into
io_apic.h.

Signed-off-by: Jiang Liu <[e-mail]>
Cc: Konrad Rzeszutek Wilk <[e-mail]>
Cc: Tony Luck <[e-mail]>
Cc: Joerg Roedel <[e-mail]>
Cc: Greg Kroah-Hartman <[e-mail]>
Cc: H. Peter Anvin <[e-mail]>
Cc: Benjamin Herrenschmidt <[e-mail]>
Cc: Rafael J. Wysocki <[e-mail]>
Cc: Bjorn Helgaas <[e-mail]>
Cc: Randy Dunlap <[e-mail]>
Cc: Yinghai Lu <[e-mail]>
Cc: Borislav Petkov <[e-mail]>
Cc: Prarit Bhargava <[e-mail]>
Cc: Grant Likely <[e-mail]>
Cc: Vivek Goyal <[e-mail]>
Cc: Baoquan He <[e-mail]>
Cc: Matt Fleming <[e-mail]>
Cc: Fenghua Yu <[e-mail]>
Cc: Christian Gmeiner <[e-mail]>
Cc: Aubrey <[e-mail]>
Cc: Ryan Desfosses <[e-mail]>
Cc: Quentin Lambert <[e-mail]>
Cc: Rafael J. Wysocki <[e-mail]>
Link: http://lkml.kernel.org/r/[e-mail]
Signed-off-by: Thomas Gleixner <[e-mail]>

arch/x86/include/asm/hw_irq.h

···
 static inline void unlock_vector_lock(void) {}
 #endif	/* CONFIG_X86_LOCAL_APIC */
 
-/* IOAPIC */
-#ifdef CONFIG_X86_IO_APIC
-struct io_apic_irq_attr {
-	int ioapic;
-	int ioapic_pin;
-	int trigger;
-	int polarity;
-};
-
-static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
-					int ioapic, int ioapic_pin,
-					int trigger, int polarity)
-{
-	irq_attr->ioapic	= ioapic;
-	irq_attr->ioapic_pin	= ioapic_pin;
-	irq_attr->trigger	= trigger;
-	irq_attr->polarity	= polarity;
-}
-
-extern void setup_IO_APIC(void);
-extern void enable_IO_APIC(void);
-extern void disable_IO_APIC(void);
-extern void setup_ioapic_dest(void);
-extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
-extern void print_IO_APICs(void);
-
-extern unsigned long io_apic_irqs;
-#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
-#else	/* CONFIG_X86_IO_APIC */
-#define IO_APIC_IRQ(x)	0
-static inline void print_IO_APICs(void) {}
-#endif	/* CONFIG_X86_IO_APIC */
-
 /* Statistics */
 extern atomic_t irq_err_count;
 extern atomic_t irq_mis_count;

arch/x86/include/asm/io_apic.h

···
 /* -1 if "noapic" boot option passed */
 extern int noioapicreroute;
 
+extern unsigned long io_apic_irqs;
+
+#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
+
 /*
  * If we use the IO-APIC for IRQ routing, disable automatic
  * assignment of PCI IRQ's.
···
 #define io_apic_assign_pci_irqs \
 	(mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)
 
-struct io_apic_irq_attr;
 struct irq_cfg;
 extern void ioapic_insert_resources(void);
 
···
 
 extern void setup_ioapic_ids_from_mpc(void);
 extern void setup_ioapic_ids_from_mpc_nocheck(void);
+
+struct io_apic_irq_attr {
+	int ioapic;
+	int ioapic_pin;
+	int trigger;
+	int polarity;
+};
 
 enum ioapic_domain_type {
 	IOAPIC_DOMAIN_INVALID,
···
 
 extern void io_apic_eoi(unsigned int apic, unsigned int vector);
 
+extern void setup_IO_APIC(void);
+extern void enable_IO_APIC(void);
+extern void disable_IO_APIC(void);
+extern void setup_ioapic_dest(void);
+extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
+extern void print_IO_APICs(void);
 #else  /* !CONFIG_X86_IO_APIC */
 
+#define IO_APIC_IRQ(x)		0
 #define io_apic_assign_pci_irqs 0
 #define setup_ioapic_ids_from_mpc x86_init_noop
 static inline void ioapic_insert_resources(void) { }
+static inline void print_IO_APICs(void) {}
 #define gsi_top (NR_IRQS_LEGACY)
 static inline int mp_find_ioapic(u32 gsi) { return 0; }
 static inline u32 mp_pin_to_gsi(int ioapic, int pin) { return UINT_MAX; }

arch/x86/kernel/apic/io_apic.c

···
 	return 0;
 }
 
+static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
+					int ioapic, int ioapic_pin,
+					int trigger, int polarity)
+{
+	irq_attr->ioapic	= ioapic;
+	irq_attr->ioapic_pin	= ioapic_pin;
+	irq_attr->trigger	= trigger;
+	irq_attr->polarity	= polarity;
+}
+
 int mp_irqdomain_map(struct irq_domain *domain, unsigned int virq,
 		     irq_hw_number_t hwirq)
 {

arch/x86/kernel/crash.c

···
 #include <asm/nmi.h>
 #include <asm/hw_irq.h>
 #include <asm/apic.h>
+#include <asm/io_apic.h>
 #include <asm/hpet.h>
 #include <linux/kdebug.h>
 #include <asm/cpu.h>

arch/x86/kernel/machine_kexec_32.c

···
 #include <asm/tlbflush.h>
 #include <asm/mmu_context.h>
 #include <asm/apic.h>
+#include <asm/io_apic.h>
 #include <asm/cpufeature.h>
 #include <asm/desc.h>
 #include <asm/cacheflush.h>

arch/x86/kernel/machine_kexec_64.c

···
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 #include <asm/mmu_context.h>
+#include <asm/io_apic.h>
 #include <asm/debugreg.h>
 #include <asm/kexec-bzimage64.h>
 

arch/x86/kernel/reboot.c

···
 #include <acpi/reboot.h>
 #include <asm/io.h>
 #include <asm/apic.h>
+#include <asm/io_apic.h>
 #include <asm/desc.h>
 #include <asm/hpet.h>
 #include <asm/pgtable.h>

drivers/pci/hotplug/ibmphp_core.c

···
 #include <linux/wait.h>
 #include "../pci.h"
 #include <asm/pci_x86.h>		/* for struct irq_routing_table */
+#include <asm/io_apic.h>
 #include "ibmphp.h"
 
 #define attn_on(sl)  ibmphp_hpc_writeslot (sl, HPC_SLOT_ATTNON)