5 u32 address_lo; /* low 32 bits of msi message address */
6 u32 address_hi; /* high 32 bits of msi message address */
7 u32 data; /* 16 bits of msi message data */
11 extern void mask_msi_irq(unsigned int irq);
12 extern void unmask_msi_irq(unsigned int irq);
13 extern void disable_msi_irq(unsigned int irq);
14 extern void enable_msi_irq(unsigned int irq);
15 extern void read_msi_msg(unsigned int irq, struct msi_msg *msg);
17 extern void write_msi_msg(unsigned int irq, struct msi_msg *msg);
18 extern void msix_flush_writes(unsigned int irq);
22 __u8 type : 5; /* {0: unused, 5h:MSI, 11h:MSI-X} */
23 __u8 maskbit : 1; /* mask-pending bit supported ? */
25 __u8 is_64 : 1; /* Address size: 0=32bit 1=64bit */
26 __u8 pos; /* Location of the msi capability */
27 __u16 entry_nr; /* specific enabled entry */
28 unsigned default_irq; /* default pre-assigned irq */
36 void __iomem *mask_base;
40 /* PM save area for MSIX address/data */
41 struct msi_msg msg_save;
46 * The arch hook for setup up msi irqs
48 int arch_setup_msi_irq(unsigned int irq, struct pci_dev *dev);
49 void arch_teardown_msi_irq(unsigned int irq);
52 #endif /* LINUX_MSI_H */