1 #ifndef __ASM_S390_PCI_H
2 #define __ASM_S390_PCI_H
4 /* must be set before including asm-generic/pci.h */
5 #define PCI_DMA_BUS_IS_PHYS (0)
6 /* must be set before including pci_clp.h */
7 #define PCI_BAR_COUNT 6
9 #include <asm-generic/pci.h>
10 #include <asm-generic/pci-dma-compat.h>
11 #include <asm/pci_clp.h>
13 #define PCIBIOS_MIN_IO 0x1000
14 #define PCIBIOS_MIN_MEM 0x10000000
16 #define pcibios_assign_all_busses() (0)
18 void __iomem *pci_iomap(struct pci_dev *, int, unsigned long);
19 void pci_iounmap(struct pci_dev *, void __iomem *);
20 int pci_domain_nr(struct pci_bus *);
21 int pci_proc_domain(struct pci_bus *);
24 #define arch_setup_msi_irqs arch_setup_msi_irqs
25 #define arch_teardown_msi_irqs arch_teardown_msi_irqs
27 #define ZPCI_BUS_NR 0 /* default bus number */
28 #define ZPCI_DEVFN 0 /* default device number */
30 /* PCI Function Controls */
31 #define ZPCI_FC_FN_ENABLED 0x80
32 #define ZPCI_FC_ERROR 0x40
33 #define ZPCI_FC_BLOCKED 0x20
34 #define ZPCI_FC_DMA_ENABLED 0x10
39 struct hlist_node msi_chain;
42 #define ZPCI_NR_MSI_VECS 64
43 #define ZPCI_MSI_MASK (ZPCI_NR_MSI_VECS - 1)
46 ZPCI_FN_STATE_RESERVED,
47 ZPCI_FN_STATE_STANDBY,
48 ZPCI_FN_STATE_CONFIGURED,
53 struct zpci_bar_struct {
54 u32 val; /* bar start & 3 flag bits */
55 u8 size; /* order 2 exponent */
56 u16 map_idx; /* index into bar mapping array */
59 /* Private data per function */
63 struct list_head entry; /* list of all zpci_devices, needed for hotplug, etc. */
65 enum zpci_state state;
66 u32 fid; /* function ID, used by sclp */
67 u32 fh; /* function handle, used by insn's */
68 u16 pchid; /* physical channel ID */
69 u8 pfgid; /* function group ID */
73 u64 msi_addr; /* MSI address */
74 struct zdev_irq_map *irq_map;
75 struct msi_map *msi_map[ZPCI_NR_MSI_VECS];
76 unsigned int aisb; /* number of the summary bit */
78 struct zpci_bar_struct bars[PCI_BAR_COUNT];
80 enum pci_bus_speed max_bus_speed;
83 static inline bool zdev_enabled(struct zpci_dev *zdev)
85 return (zdev->fh & (1UL << 31)) ? true : false;
88 /* -----------------------------------------------------------------------------
90 ----------------------------------------------------------------------------- */
92 struct zpci_dev *zpci_alloc_device(void);
93 int zpci_create_device(struct zpci_dev *);
94 int zpci_enable_device(struct zpci_dev *);
95 void zpci_stop_device(struct zpci_dev *);
96 void zpci_free_device(struct zpci_dev *);
97 int zpci_scan_device(struct zpci_dev *);
100 int clp_find_pci_devices(void);
101 int clp_add_pci_device(u32, u32, int);
102 int clp_enable_fh(struct zpci_dev *, u8);
103 int clp_disable_fh(struct zpci_dev *);
106 struct msi_desc *__irq_get_msi_desc(unsigned int);
107 int zpci_msi_set_mask_bits(struct msi_desc *, u32, u32);
108 int zpci_setup_msi_irq(struct zpci_dev *, struct msi_desc *, unsigned int, int);
109 void zpci_teardown_msi_irq(struct zpci_dev *, struct msi_desc *);
110 int zpci_msihash_init(void);
111 void zpci_msihash_exit(void);
114 struct zpci_dev *get_zdev(struct pci_dev *);
115 struct zpci_dev *get_zdev_by_fid(u32);
116 bool zpci_fid_present(u32);