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x86, irq: Move local APIC related code from io_apic.c into vector.c

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Create arch/x86/kernel/apic/vector.c to host local APIC related code,
prepare for making MSI/HT_IRQ independent of IOAPIC.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Grant Likely <grant.likely@linaro.org>
Link: http://lkml.kernel.org/r/1414397531-28254-10-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu
2014-10-27 16:12:00 +08:00
committed by Thomas Gleixner
parent 55a0e2b122
commit 74afab7af7
6 changed files with 714 additions and 684 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
arch/x86/include/asm/hw_irq.h
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@@ -111,6 +111,8 @@ struct irq_2_irte {
#endif /* CONFIG_IRQ_REMAP */
#ifdef CONFIG_X86_LOCAL_APIC
struct irq_data;
struct irq_cfg {
cpumask_var_t domain;
cpumask_var_t old_domain;
@@ -134,28 +136,27 @@ struct irq_cfg {
extern struct irq_cfg *irq_cfg(unsigned int irq);
extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
extern void setup_vector_irq(int cpu);
extern struct irq_cfg *alloc_irq_and_cfg_at(unsigned int at, int node);
extern void lock_vector_lock(void);
extern void unlock_vector_lock(void);
extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
extern void clear_irq_vector(int irq, struct irq_cfg *cfg);
extern void setup_vector_irq(int cpu);
#ifdef CONFIG_SMP
extern void send_cleanup_vector(struct irq_cfg *);
#else
static inline void send_cleanup_vector(struct irq_cfg *c) { }
#endif
extern void irq_complete_move(struct irq_cfg *cfg);
struct irq_data;
int apic_set_affinity(struct irq_data *, const struct cpumask *,
unsigned int *dest_id);
#endif /* CONFIG_X86_LOCAL_APIC */
#ifdef CONFIG_X86_IO_APIC
extern void lock_vector_lock(void);
extern void unlock_vector_lock(void);
extern void __setup_vector_irq(int cpu);
#else
extern int apic_retrigger_irq(struct irq_data *data);
extern void apic_ack_edge(struct irq_data *data);
extern int apic_set_affinity(struct irq_data *data, const struct cpumask *mask,
unsigned int *dest_id);
#else /* CONFIG_X86_LOCAL_APIC */
static inline void lock_vector_lock(void) {}
static inline void unlock_vector_lock(void) {}
static inline void __setup_vector_irq(int cpu) {}
#endif
#endif /* CONFIG_X86_LOCAL_APIC */
/* IOAPIC */
#ifdef CONFIG_X86_IO_APIC
@@ -181,11 +182,13 @@ 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 */