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x86, hpet: Introduce x86_msi_ops.setup_hpet_msi

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This function pointer can be overwritten by the IRQ
remapping code. The irq_remapping_enabled check can be
removed from default_setup_hpet_msi.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This commit is contained in:
Joerg Roedel
2012-09-26 12:44:37 +02:00
parent afcc8a40a0
commit 71054d8841
6 changed files with 14 additions and 15 deletions
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5
arch/x86/include/asm/hpet.h
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@@ -80,9 +80,9 @@ extern void hpet_msi_write(struct hpet_dev *hdev, struct msi_msg *msg);
extern void hpet_msi_read(struct hpet_dev *hdev, struct msi_msg *msg);
#ifdef CONFIG_PCI_MSI
extern int arch_setup_hpet_msi(unsigned int irq, unsigned int id);
extern int default_setup_hpet_msi(unsigned int irq, unsigned int id);
#else
static inline int arch_setup_hpet_msi(unsigned int irq, unsigned int id)
static inline int default_setup_hpet_msi(unsigned int irq, unsigned int id)
{
return -EINVAL;
}
@@ -111,6 +111,7 @@ extern void hpet_unregister_irq_handler(rtc_irq_handler handler);
static inline int hpet_enable(void) { return 0; }
static inline int is_hpet_enabled(void) { return 0; }
#define hpet_readl(a) 0
#define default_setup_hpet_msi NULL
#endif
#endif /* _ASM_X86_HPET_H */

1
arch/x86/include/asm/x86_init.h
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@@ -187,6 +187,7 @@ struct x86_msi_ops {
void (*teardown_msi_irq)(unsigned int irq);
void (*teardown_msi_irqs)(struct pci_dev *dev);
void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
int (*setup_hpet_msi)(unsigned int irq, unsigned int id);
};
struct x86_io_apic_ops {