160742802SPekka Enberg #ifndef KVM__PCI_H 260742802SPekka Enberg #define KVM__PCI_H 360742802SPekka Enberg 43fdf659dSSasha Levin #include <linux/types.h> 576f9c841SCyrill Gorcunov 620c64ecaSPekka Enberg #include <linux/pci_regs.h> 776f9c841SCyrill Gorcunov 84402a581SPekka Enberg /* 94402a581SPekka Enberg * PCI Configuration Mechanism #1 I/O ports. See Section 3.7.4.1. 104402a581SPekka Enberg * ("Configuration Mechanism #1") of the PCI Local Bus Specification 2.1 for 114402a581SPekka Enberg * details. 124402a581SPekka Enberg */ 13305b72ceSCyrill Gorcunov #define PCI_CONFIG_ADDRESS 0xcf8 14305b72ceSCyrill Gorcunov #define PCI_CONFIG_DATA 0xcfc 152b9e4709SCyrill Gorcunov #define PCI_CONFIG_BUS_FORWARD 0xcfa 16305b72ceSCyrill Gorcunov 174402a581SPekka Enberg struct pci_config_address { 184402a581SPekka Enberg unsigned zeros : 2; /* 1 .. 0 */ 194402a581SPekka Enberg unsigned register_number : 6; /* 7 .. 2 */ 204402a581SPekka Enberg unsigned function_number : 3; /* 10 .. 8 */ 214402a581SPekka Enberg unsigned device_number : 5; /* 15 .. 11 */ 224402a581SPekka Enberg unsigned bus_number : 8; /* 23 .. 16 */ 234402a581SPekka Enberg unsigned reserved : 7; /* 30 .. 24 */ 244402a581SPekka Enberg unsigned enable_bit : 1; /* 31 */ 254402a581SPekka Enberg }; 264402a581SPekka Enberg 27*bc485053SSasha Levin struct msix_table { 28*bc485053SSasha Levin u32 low; 29*bc485053SSasha Levin u32 high; 30*bc485053SSasha Levin u32 data; 31*bc485053SSasha Levin u32 ctrl; 32*bc485053SSasha Levin }; 33*bc485053SSasha Levin 34*bc485053SSasha Levin struct msix_cap { 35*bc485053SSasha Levin u8 cap; 36*bc485053SSasha Levin u8 next; 37*bc485053SSasha Levin u16 table_size; 38*bc485053SSasha Levin u32 table_offset; 39*bc485053SSasha Levin struct msix_table table[3 * PCI_MSIX_ENTRY_SIZE]; 40*bc485053SSasha Levin }; 41*bc485053SSasha Levin 4276f9c841SCyrill Gorcunov struct pci_device_header { 433fdf659dSSasha Levin u16 vendor_id; 443fdf659dSSasha Levin u16 device_id; 453fdf659dSSasha Levin u16 command; 463fdf659dSSasha Levin u16 status; 473fdf659dSSasha Levin u16 revision_id : 8; 483fdf659dSSasha Levin u32 class : 24; 493fdf659dSSasha Levin u8 cacheline_size; 503fdf659dSSasha Levin u8 latency_timer; 513fdf659dSSasha Levin u8 header_type; 523fdf659dSSasha Levin u8 bist; 533fdf659dSSasha Levin u32 bar[6]; 543fdf659dSSasha Levin u32 card_bus; 553fdf659dSSasha Levin u16 subsys_vendor_id; 563fdf659dSSasha Levin u16 subsys_id; 573fdf659dSSasha Levin u32 exp_rom_bar; 583fdf659dSSasha Levin u32 capabilities : 8; 593fdf659dSSasha Levin u32 reserved1 : 24; 603fdf659dSSasha Levin u32 reserved2; 613fdf659dSSasha Levin u8 irq_line; 623fdf659dSSasha Levin u8 irq_pin; 633fdf659dSSasha Levin u8 min_gnt; 643fdf659dSSasha Levin u8 max_lat; 65*bc485053SSasha Levin struct msix_cap msix; 6676f9c841SCyrill Gorcunov }; 6776f9c841SCyrill Gorcunov 6860742802SPekka Enberg void pci__init(void); 693fdf659dSSasha Levin void pci__register(struct pci_device_header *dev, u8 dev_num); 709575e724SSasha Levin u32 pci_get_io_space_block(void); 7160742802SPekka Enberg 7260742802SPekka Enberg #endif /* KVM__PCI_H */ 73