1 #ifndef __ASM_S390_PCI_H 2 #define __ASM_S390_PCI_H 3 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 8 9 #include <asm-generic/pci.h> 10 #include <asm-generic/pci-dma-compat.h> 11 12 #define PCIBIOS_MIN_IO 0x1000 13 #define PCIBIOS_MIN_MEM 0x10000000 14 15 #define pcibios_assign_all_busses() (0) 16 17 void __iomem *pci_iomap(struct pci_dev *, int, unsigned long); 18 void pci_iounmap(struct pci_dev *, void __iomem *); 19 int pci_domain_nr(struct pci_bus *); 20 int pci_proc_domain(struct pci_bus *); 21 22 #define ZPCI_BUS_NR 0 /* default bus number */ 23 #define ZPCI_DEVFN 0 /* default device number */ 24 25 /* PCI Function Controls */ 26 #define ZPCI_FC_FN_ENABLED 0x80 27 #define ZPCI_FC_ERROR 0x40 28 #define ZPCI_FC_BLOCKED 0x20 29 #define ZPCI_FC_DMA_ENABLED 0x10 30 31 enum zpci_state { 32 ZPCI_FN_STATE_RESERVED, 33 ZPCI_FN_STATE_STANDBY, 34 ZPCI_FN_STATE_CONFIGURED, 35 ZPCI_FN_STATE_ONLINE, 36 NR_ZPCI_FN_STATES, 37 }; 38 39 struct zpci_bar_struct { 40 u32 val; /* bar start & 3 flag bits */ 41 u8 size; /* order 2 exponent */ 42 u16 map_idx; /* index into bar mapping array */ 43 }; 44 45 /* Private data per function */ 46 struct zpci_dev { 47 struct pci_dev *pdev; 48 struct pci_bus *bus; 49 struct list_head entry; /* list of all zpci_devices, needed for hotplug, etc. */ 50 51 enum zpci_state state; 52 u32 fid; /* function ID, used by sclp */ 53 u32 fh; /* function handle, used by insn's */ 54 u16 pchid; /* physical channel ID */ 55 u8 pfgid; /* function group ID */ 56 u16 domain; 57 58 struct zpci_bar_struct bars[PCI_BAR_COUNT]; 59 60 enum pci_bus_speed max_bus_speed; 61 }; 62 63 static inline bool zdev_enabled(struct zpci_dev *zdev) 64 { 65 return (zdev->fh & (1UL << 31)) ? true : false; 66 } 67 68 /* ----------------------------------------------------------------------------- 69 Prototypes 70 ----------------------------------------------------------------------------- */ 71 /* Base stuff */ 72 struct zpci_dev *zpci_alloc_device(void); 73 int zpci_create_device(struct zpci_dev *); 74 int zpci_enable_device(struct zpci_dev *); 75 void zpci_stop_device(struct zpci_dev *); 76 void zpci_free_device(struct zpci_dev *); 77 int zpci_scan_device(struct zpci_dev *); 78 79 /* Helpers */ 80 struct zpci_dev *get_zdev(struct pci_dev *); 81 struct zpci_dev *get_zdev_by_fid(u32); 82 bool zpci_fid_present(u32); 83 84 #endif 85