diff options
Diffstat (limited to 'arch/s390/include/asm/pci.h')
| -rw-r--r-- | arch/s390/include/asm/pci.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 6f98a54950ea..2a6084fa4b1a 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -20,6 +20,10 @@ void pci_iounmap(struct pci_dev *, void __iomem *); int pci_domain_nr(struct pci_bus *); int pci_proc_domain(struct pci_bus *); +/* MSI arch hooks */ +#define arch_setup_msi_irqs arch_setup_msi_irqs +#define arch_teardown_msi_irqs arch_teardown_msi_irqs + #define ZPCI_BUS_NR 0 /* default bus number */ #define ZPCI_DEVFN 0 /* default device number */ @@ -29,6 +33,15 @@ int pci_proc_domain(struct pci_bus *); #define ZPCI_FC_BLOCKED 0x20 #define ZPCI_FC_DMA_ENABLED 0x10 +struct msi_map { + unsigned long irq; + struct msi_desc *msi; + struct hlist_node msi_chain; +}; + +#define ZPCI_NR_MSI_VECS 64 +#define ZPCI_MSI_MASK (ZPCI_NR_MSI_VECS - 1) + enum zpci_state { ZPCI_FN_STATE_RESERVED, ZPCI_FN_STATE_STANDBY, @@ -56,6 +69,12 @@ struct zpci_dev { u8 pfgid; /* function group ID */ u16 domain; + /* IRQ stuff */ + u64 msi_addr; /* MSI address */ + struct zdev_irq_map *irq_map; + struct msi_map *msi_map[ZPCI_NR_MSI_VECS]; + unsigned int aisb; /* number of the summary bit */ + struct zpci_bar_struct bars[PCI_BAR_COUNT]; enum pci_bus_speed max_bus_speed; @@ -83,6 +102,14 @@ int clp_add_pci_device(u32, u32, int); int clp_enable_fh(struct zpci_dev *, u8); int clp_disable_fh(struct zpci_dev *); +/* MSI */ +struct msi_desc *__irq_get_msi_desc(unsigned int); +int zpci_msi_set_mask_bits(struct msi_desc *, u32, u32); +int zpci_setup_msi_irq(struct zpci_dev *, struct msi_desc *, unsigned int, int); +void zpci_teardown_msi_irq(struct zpci_dev *, struct msi_desc *); +int zpci_msihash_init(void); +void zpci_msihash_exit(void); + /* Helpers */ struct zpci_dev *get_zdev(struct pci_dev *); struct zpci_dev *get_zdev_by_fid(u32); |