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x86, ioapic: Define irq_remap_modify_chip_defaults()

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Define irq_remap_modify_chip_defaults() and remove the duplicate
code, cleanup the unnecessary ifdefs.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: yinghai@kernel.org
Cc: youquan.song@intel.com
Cc: joerg.roedel@amd.com
Cc: tony.luck@intel.com
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/20110824001456.499225692@sbsiddha-desk.sc.intel.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Suresh Siddha 2011-08-23 17:05:24 -07:00 • committed by Ingo Molnar
parent 13ea20f7a2
commit c39d77ffa2
2 changed files with 23 additions and 45 deletions
Download patch file Download diff file Expand all files Collapse all files

4
arch/x86/include/asm/irq_remapping.h
View file

@ -4,6 +4,7 @@
#define IRTE_DEST(dest) ((x2apic_mode) ? dest : dest << 8) #define IRTE_DEST(dest) ((x2apic_mode) ? dest : dest << 8)
#ifdef CONFIG_INTR_REMAP #ifdef CONFIG_INTR_REMAP
static void irq_remap_modify_chip_defaults(struct irq_chip *chip);
static inline void prepare_irte(struct irte *irte, int vector, static inline void prepare_irte(struct irte *irte, int vector,
unsigned int dest) unsigned int dest)
{ {
@ -36,6 +37,9 @@ static inline bool irq_remapped(struct irq_cfg *cfg)
{ {
return false; return false;
} }
static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip)
{
}
#endif #endif
#endif /* _ASM_X86_IRQ_REMAPPING_H */ #endif /* _ASM_X86_IRQ_REMAPPING_H */

64
arch/x86/kernel/apic/io_apic.c
View file

@ -1202,7 +1202,6 @@ void __setup_vector_irq(int cpu)
} }
static struct irq_chip ioapic_chip; static struct irq_chip ioapic_chip;
static struct irq_chip ir_ioapic_chip;
#ifdef CONFIG_X86_32 #ifdef CONFIG_X86_32
static inline int IO_APIC_irq_trigger(int irq) static inline int IO_APIC_irq_trigger(int irq)
@ -1246,7 +1245,7 @@ static void ioapic_register_intr(unsigned int irq, struct irq_cfg *cfg,
if (irq_remapped(cfg)) { if (irq_remapped(cfg)) {
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
chip = &ir_ioapic_chip; irq_remap_modify_chip_defaults(chip);
fasteoi = trigger != 0; fasteoi = trigger != 0;
} }
@ -2572,6 +2571,22 @@ static void ir_ack_apic_level(struct irq_data *data)
ack_APIC_irq(); ack_APIC_irq();
eoi_ioapic_irq(data->irq, data->chip_data); eoi_ioapic_irq(data->irq, data->chip_data);
} }
static void ir_print_prefix(struct irq_data *data, struct seq_file *p)
{
seq_printf(p, " IR-%s", data->chip->name);
}
static void irq_remap_modify_chip_defaults(struct irq_chip *chip)
{
chip->irq_print_chip = ir_print_prefix;
chip->irq_ack = ir_ack_apic_edge;
chip->irq_eoi = ir_ack_apic_level;
#ifdef CONFIG_SMP
chip->irq_set_affinity = ir_ioapic_set_affinity;
#endif
}
#endif /* CONFIG_INTR_REMAP */ #endif /* CONFIG_INTR_REMAP */
static struct irq_chip ioapic_chip __read_mostly = { static struct irq_chip ioapic_chip __read_mostly = {
@ -2587,21 +2602,6 @@ static struct irq_chip ioapic_chip __read_mostly = {
.irq_retrigger = ioapic_retrigger_irq, .irq_retrigger = ioapic_retrigger_irq,
}; };
static struct irq_chip ir_ioapic_chip __read_mostly = {
.name = "IR-IO-APIC",
.irq_startup = startup_ioapic_irq,
.irq_mask = mask_ioapic_irq,
.irq_unmask = unmask_ioapic_irq,
#ifdef CONFIG_INTR_REMAP
.irq_ack = ir_ack_apic_edge,
.irq_eoi = ir_ack_apic_level,
#ifdef CONFIG_SMP
.irq_set_affinity = ir_ioapic_set_affinity,
#endif
#endif
.irq_retrigger = ioapic_retrigger_irq,
};
static inline void init_IO_APIC_traps(void) static inline void init_IO_APIC_traps(void)
{ {
struct irq_cfg *cfg; struct irq_cfg *cfg;
@ -3170,19 +3170,6 @@ static struct irq_chip msi_chip = {
.irq_retrigger = ioapic_retrigger_irq, .irq_retrigger = ioapic_retrigger_irq,
}; };
static struct irq_chip msi_ir_chip = {
.name = "IR-PCI-MSI",
.irq_unmask = unmask_msi_irq,
.irq_mask = mask_msi_irq,
#ifdef CONFIG_INTR_REMAP
.irq_ack = ir_ack_apic_edge,
#ifdef CONFIG_SMP
.irq_set_affinity = ir_ioapic_set_affinity,
#endif
#endif
.irq_retrigger = ioapic_retrigger_irq,
};
/* /*
* Map the PCI dev to the corresponding remapping hardware unit * Map the PCI dev to the corresponding remapping hardware unit
* and allocate 'nvec' consecutive interrupt-remapping table entries * and allocate 'nvec' consecutive interrupt-remapping table entries
@ -3225,7 +3212,7 @@ static int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, int irq)
if (irq_remapped(irq_get_chip_data(irq))) { if (irq_remapped(irq_get_chip_data(irq))) {
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
chip = &msi_ir_chip; irq_remap_modify_chip_defaults(chip);
} }
irq_set_chip_and_handler_name(irq, chip, handle_edge_irq, "edge"); irq_set_chip_and_handler_name(irq, chip, handle_edge_irq, "edge");
@ -3379,19 +3366,6 @@ static int hpet_msi_set_affinity(struct irq_data *data,
#endif /* CONFIG_SMP */ #endif /* CONFIG_SMP */
static struct irq_chip ir_hpet_msi_type = {
.name = "IR-HPET_MSI",
.irq_unmask = hpet_msi_unmask,
.irq_mask = hpet_msi_mask,
#ifdef CONFIG_INTR_REMAP
.irq_ack = ir_ack_apic_edge,
#ifdef CONFIG_SMP
.irq_set_affinity = ir_ioapic_set_affinity,
#endif
#endif
.irq_retrigger = ioapic_retrigger_irq,
};
static struct irq_chip hpet_msi_type = { static struct irq_chip hpet_msi_type = {
.name = "HPET_MSI", .name = "HPET_MSI",
.irq_unmask = hpet_msi_unmask, .irq_unmask = hpet_msi_unmask,
@ -3428,7 +3402,7 @@ int arch_setup_hpet_msi(unsigned int irq, unsigned int id)
hpet_msi_write(irq_get_handler_data(irq), &msg); hpet_msi_write(irq_get_handler_data(irq), &msg);
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
if (irq_remapped(irq_get_chip_data(irq))) if (irq_remapped(irq_get_chip_data(irq)))
chip = &ir_hpet_msi_type; irq_remap_modify_chip_defaults(chip);
irq_set_chip_and_handler_name(irq, chip, handle_edge_irq, "edge"); irq_set_chip_and_handler_name(irq, chip, handle_edge_irq, "edge");
return 0; return 0;