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/*

** This file is private to iosapic driver.

** If stuff needs to be used by another driver, move it to a common file.

**

** WARNING: fields most data structures here are ordered to make sure

**          they pack nicely for 64-bit compilation. (ie sizeof(long) == 8)

*/

/*

** I/O SAPIC init function

** Caller knows where an I/O SAPIC is. LBA has an integrated I/O SAPIC.

** Call setup as part of per instance initialization.

** (ie *not* init_module() function unless only one is present.)

** fixup_irq is to initialize PCI IRQ line support and

** virtualize pcidev->irq value. To be called by pci_fixup_bus().

*/

extern void *iosapic_register(unsigned long hpa);

extern int iosapic_fixup_irq(void *obj, struct pci_dev *pcidev);

#ifdef __IA64__

/*

** PA: PIB (Processor Interrupt Block) is handled by Runway bus adapter.

**     and is hardcoded to 0xfeeNNNN0 where NNNN is id_eid field.

**

** IA64: PIB is handled by "Local SAPIC" (integrated in the processor).

*/

struct local_sapic_info {

        struct local_sapic_info *lsi_next;      /* point to next CPU info */

        int                     *lsi_cpu_id;    /* point to logical CPU id */

        unsigned long           *lsi_id_eid;    /* point to IA-64 CPU id */

        int                     *lsi_status;    /* point to CPU status   */

        void                    *lsi_private;   /* point to special info */

};

/*

** "root" data structure which ties everything together.

** Should always be able to start with sapic_root and locate

** the desired information.

*/

struct sapic_info {

        struct sapic_info       *si_next;       /* info is per cell */

        int                     si_cellid;      /* cell id */

        unsigned int            si_status;       /* status  */

        char                    *si_pib_base;   /* intr blk base address */

        local_sapic_info_t      *si_local_info;

        io_sapic_info_t         *si_io_info;

        extint_info_t           *si_extint_info;/* External Intr info      */

};

#endif /* IA64 */