提交 2976fd84 编写于 作者: J Joerg Roedel

x86, irq: Introduce setup_remapped_irq()

This function does irq-remapping specific interrupt setup
like modifying the chip defaults.
Signed-off-by: NJoerg Roedel <joro@8bytes.org>
Acked-by: NSebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
上级 11b4a1cc
无相关合并请求
...@@ -44,6 +44,9 @@ extern void compose_remapped_msi_msg(struct pci_dev *pdev, ...@@ -44,6 +44,9 @@ extern void compose_remapped_msi_msg(struct pci_dev *pdev,
struct msi_msg *msg, u8 hpet_id); struct msi_msg *msg, u8 hpet_id);
extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id); extern int setup_hpet_msi_remapped(unsigned int irq, unsigned int id);
extern void panic_if_irq_remap(const char *msg); extern void panic_if_irq_remap(const char *msg);
extern bool setup_remapped_irq(int irq,
struct irq_cfg *cfg,
struct irq_chip *chip);
static inline bool irq_remapped(struct irq_cfg *cfg) static inline bool irq_remapped(struct irq_cfg *cfg)
{ {
...@@ -93,6 +96,12 @@ static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip) ...@@ -93,6 +96,12 @@ static inline void irq_remap_modify_chip_defaults(struct irq_chip *chip)
{ {
} }
static inline bool setup_remapped_irq(int irq,
struct irq_cfg *cfg,
struct irq_chip *chip)
{
return false;
}
#endif /* CONFIG_IRQ_REMAP */ #endif /* CONFIG_IRQ_REMAP */
#endif /* __X86_IRQ_REMAPPING_H */ #endif /* __X86_IRQ_REMAPPING_H */
...@@ -1288,11 +1288,8 @@ static void ioapic_register_intr(unsigned int irq, struct irq_cfg *cfg, ...@@ -1288,11 +1288,8 @@ static void ioapic_register_intr(unsigned int irq, struct irq_cfg *cfg,
fasteoi = false; fasteoi = false;
} }
if (irq_remapped(cfg)) { if (setup_remapped_irq(irq, cfg, chip))
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
irq_remap_modify_chip_defaults(chip);
fasteoi = trigger != 0; fasteoi = trigger != 0;
}
hdl = fasteoi ? handle_fasteoi_irq : handle_edge_irq; hdl = fasteoi ? handle_fasteoi_irq : handle_edge_irq;
irq_set_chip_and_handler_name(irq, chip, hdl, irq_set_chip_and_handler_name(irq, chip, hdl,
...@@ -3131,10 +3128,7 @@ int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc, ...@@ -3131,10 +3128,7 @@ int setup_msi_irq(struct pci_dev *dev, struct msi_desc *msidesc,
if (!irq_offset) if (!irq_offset)
write_msi_msg(irq, &msg); write_msi_msg(irq, &msg);
if (irq_remapped(irq_get_chip_data(irq))) { setup_remapped_irq(irq, irq_get_chip_data(irq), chip);
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
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");
...@@ -3272,8 +3266,7 @@ int default_setup_hpet_msi(unsigned int irq, unsigned int id) ...@@ -3272,8 +3266,7 @@ int default_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))) setup_remapped_irq(irq, irq_get_chip_data(irq), 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");
return 0; return 0;
......
...@@ -355,3 +355,12 @@ void irq_remap_modify_chip_defaults(struct irq_chip *chip) ...@@ -355,3 +355,12 @@ void irq_remap_modify_chip_defaults(struct irq_chip *chip)
chip->irq_eoi = ir_ack_apic_level; chip->irq_eoi = ir_ack_apic_level;
chip->irq_set_affinity = x86_io_apic_ops.set_affinity; chip->irq_set_affinity = x86_io_apic_ops.set_affinity;
} }
bool setup_remapped_irq(int irq, struct irq_cfg *cfg, struct irq_chip *chip)
{
if (!irq_remapped(cfg))
return false;
irq_set_status_flags(irq, IRQ_MOVE_PCNTXT);
irq_remap_modify_chip_defaults(chip);
return true;
}
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