1c6557e7fSMartin Schwidefsky #ifndef __ASM_S390_PCI_H 2c6557e7fSMartin Schwidefsky #define __ASM_S390_PCI_H 3c6557e7fSMartin Schwidefsky 4cd248341SJan Glauber /* must be set before including asm-generic/pci.h */ 5c6557e7fSMartin Schwidefsky #define PCI_DMA_BUS_IS_PHYS (0) 6cd248341SJan Glauber /* must be set before including pci_clp.h */ 7cd248341SJan Glauber #define PCI_BAR_COUNT 6 8c6557e7fSMartin Schwidefsky 9cd248341SJan Glauber #include <asm-generic/pci.h> 10cd248341SJan Glauber #include <asm-generic/pci-dma-compat.h> 11c6557e7fSMartin Schwidefsky 12cd248341SJan Glauber #define PCIBIOS_MIN_IO 0x1000 13cd248341SJan Glauber #define PCIBIOS_MIN_MEM 0x10000000 14cd248341SJan Glauber 15cd248341SJan Glauber #define pcibios_assign_all_busses() (0) 16cd248341SJan Glauber 17cd248341SJan Glauber void __iomem *pci_iomap(struct pci_dev *, int, unsigned long); 18cd248341SJan Glauber void pci_iounmap(struct pci_dev *, void __iomem *); 19cd248341SJan Glauber int pci_domain_nr(struct pci_bus *); 20cd248341SJan Glauber int pci_proc_domain(struct pci_bus *); 21cd248341SJan Glauber 22cd248341SJan Glauber #define ZPCI_BUS_NR 0 /* default bus number */ 23cd248341SJan Glauber #define ZPCI_DEVFN 0 /* default device number */ 24cd248341SJan Glauber 25cd248341SJan Glauber /* PCI Function Controls */ 26cd248341SJan Glauber #define ZPCI_FC_FN_ENABLED 0x80 27cd248341SJan Glauber #define ZPCI_FC_ERROR 0x40 28cd248341SJan Glauber #define ZPCI_FC_BLOCKED 0x20 29cd248341SJan Glauber #define ZPCI_FC_DMA_ENABLED 0x10 30cd248341SJan Glauber 31cd248341SJan Glauber enum zpci_state { 32cd248341SJan Glauber ZPCI_FN_STATE_RESERVED, 33cd248341SJan Glauber ZPCI_FN_STATE_STANDBY, 34cd248341SJan Glauber ZPCI_FN_STATE_CONFIGURED, 35cd248341SJan Glauber ZPCI_FN_STATE_ONLINE, 36cd248341SJan Glauber NR_ZPCI_FN_STATES, 37cd248341SJan Glauber }; 38cd248341SJan Glauber 39cd248341SJan Glauber struct zpci_bar_struct { 40cd248341SJan Glauber u32 val; /* bar start & 3 flag bits */ 41cd248341SJan Glauber u8 size; /* order 2 exponent */ 42cd248341SJan Glauber u16 map_idx; /* index into bar mapping array */ 43cd248341SJan Glauber }; 44cd248341SJan Glauber 45cd248341SJan Glauber /* Private data per function */ 46cd248341SJan Glauber struct zpci_dev { 47cd248341SJan Glauber struct pci_dev *pdev; 48cd248341SJan Glauber struct pci_bus *bus; 49cd248341SJan Glauber struct list_head entry; /* list of all zpci_devices, needed for hotplug, etc. */ 50cd248341SJan Glauber 51cd248341SJan Glauber enum zpci_state state; 52cd248341SJan Glauber u32 fid; /* function ID, used by sclp */ 53cd248341SJan Glauber u32 fh; /* function handle, used by insn's */ 54cd248341SJan Glauber u16 pchid; /* physical channel ID */ 55cd248341SJan Glauber u8 pfgid; /* function group ID */ 56cd248341SJan Glauber u16 domain; 57cd248341SJan Glauber 58cd248341SJan Glauber struct zpci_bar_struct bars[PCI_BAR_COUNT]; 59cd248341SJan Glauber 60cd248341SJan Glauber enum pci_bus_speed max_bus_speed; 61cd248341SJan Glauber }; 62cd248341SJan Glauber 63cd248341SJan Glauber static inline bool zdev_enabled(struct zpci_dev *zdev) 64cd248341SJan Glauber { 65cd248341SJan Glauber return (zdev->fh & (1UL << 31)) ? true : false; 66cd248341SJan Glauber } 67cd248341SJan Glauber 68cd248341SJan Glauber /* ----------------------------------------------------------------------------- 69cd248341SJan Glauber Prototypes 70cd248341SJan Glauber ----------------------------------------------------------------------------- */ 71cd248341SJan Glauber /* Base stuff */ 72cd248341SJan Glauber struct zpci_dev *zpci_alloc_device(void); 73cd248341SJan Glauber int zpci_create_device(struct zpci_dev *); 74cd248341SJan Glauber int zpci_enable_device(struct zpci_dev *); 75cd248341SJan Glauber void zpci_stop_device(struct zpci_dev *); 76cd248341SJan Glauber void zpci_free_device(struct zpci_dev *); 77cd248341SJan Glauber int zpci_scan_device(struct zpci_dev *); 78cd248341SJan Glauber 79cd248341SJan Glauber /* Helpers */ 80cd248341SJan Glauber struct zpci_dev *get_zdev(struct pci_dev *); 81cd248341SJan Glauber struct zpci_dev *get_zdev_by_fid(u32); 82cd248341SJan Glauber bool zpci_fid_present(u32); 83cd248341SJan Glauber 84cd248341SJan Glauber #endif 85