diff options
| author |   Jiang Liu <jiang.liu@linux.intel.com> | 2014-10-27 16:12:00 +0800 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2014-12-16 14:08:16 +0100 |
| commit | 74afab7af7d9aeba86b3b8e39670cf7d0058f6df (patch) | |
| tree | ef65e6502d8a56eada797a278002cdd9e1307f04 /arch/x86/include/asm/hw_irq.h | |
| parent | x86, irq: Introduce helpers to access struct irq_cfg (diff) | |
| download | linux-dev-74afab7af7d9aeba86b3b8e39670cf7d0058f6df.tar.xz linux-dev-74afab7af7d9aeba86b3b8e39670cf7d0058f6df.zip | |
x86, irq: Move local APIC related code from io_apic.c into vector.c
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>
Diffstat (limited to 'arch/x86/include/asm/hw_irq.h')
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index 454c9e4056e6..ef50db16bb44 100644 --- a/arch/x86/include/asm/hw_irq.h +++ b/arch/x86/include/asm/hw_irq.h @@ -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 */ |