#ifndef DEVICE_H #define DEVICE_H #include #include #include #include struct device; #ifndef __PRE_RAM__ typedef struct device * device_t; struct pci_operations; struct pci_bus_operations; struct smbus_bus_operations; /* Chip operations */ struct chip_operations { void (*enable_dev)(struct device *dev); const char *name; }; #define CHIP_NAME(X) .name = X, struct bus; struct device_operations { void (*read_resources)(device_t dev); void (*set_resources)(device_t dev); void (*enable_resources)(device_t dev); void (*init)(device_t dev); unsigned int (*scan_bus)(device_t bus, unsigned int max); void (*enable)(device_t dev); void (*disable)(device_t dev); void (*set_link)(device_t dev, unsigned int link); void (*reset_bus)(struct bus *bus); #if CONFIG_GENERATE_SMBIOS_TABLES int (*get_smbios_data)(device_t dev, int *handle, unsigned long *current); #endif const struct pci_operations *ops_pci; const struct smbus_bus_operations *ops_smbus_bus; const struct pci_bus_operations *ops_pci_bus; }; #endif struct bus { ROMSTAGE_CONST struct device * dev; /* This bridge device */ ROMSTAGE_CONST struct device * children; /* devices behind this bridge */ ROMSTAGE_CONST struct bus *next; /* The next bridge on this device */ unsigned bridge_ctrl; /* Bridge control register */ unsigned char link_num; /* The index of this link */ uint16_t secondary; /* secondary bus number */ uint16_t subordinate; /* max subordinate bus number */ unsigned char cap; /* PCi capability offset */ unsigned reset_needed : 1; unsigned disable_relaxed_ordering : 1; }; /* * There is one device structure for each slot-number/function-number * combination: */ struct pci_irq_info { unsigned int ioapic_irq_pin; unsigned int ioapic_src_pin; unsigned int ioapic_dst_id; unsigned int ioapic_flags; }; struct device { ROMSTAGE_CONST struct bus * bus; /* bus this device is on, for bridge * devices, it is the up stream bus */ ROMSTAGE_CONST struct device * sibling; /* next device on this bus */ ROMSTAGE_CONST struct device * next; /* chain of all devices */ struct device_path path; unsigned vendor; unsigned device; u16 subsystem_vendor; u16 subsystem_device; unsigned int class; /* 3 bytes: (base, sub, prog-if) */ unsigned int hdr_type; /* PCI header type */ unsigned int enabled : 1; /* set if we should enable the device */ unsigned int initialized : 1; /* set if we have initialized the device */ unsigned int on_mainboard : 1; struct pci_irq_info pci_irq_info[4]; u8 command; /* Base registers for this device. I/O, MEM and Expansion ROM */ ROMSTAGE_CONST struct resource *resource_list; /* links are (downstream) buses attached to the device, usually a leaf * device with no children has 0 buses attached and a bridge has 1 bus */ ROMSTAGE_CONST struct bus *link_list; struct device_operations *ops; #ifndef __PRE_RAM__ const struct chip_operations *chip_ops; #endif ROMSTAGE_CONST void *chip_info; }; /** * This is the root of the device tree. The device tree is defined in the * static.c file and is generated by the config tool at compile time. */ extern ROMSTAGE_CONST struct device dev_root; #ifndef __PRE_RAM__ extern struct device *all_devices; /* list of all devices */ extern struct resource *free_resources; extern struct bus *free_links; /* IGD UMA memory */ extern uint64_t uma_memory_base; extern uint64_t uma_memory_size; /* Generic device interface functions */ device_t alloc_dev(struct bus *parent, struct device_path *path); void dev_enumerate(void); void dev_configure(void); void dev_enable(void); void dev_initialize(void); void dev_optimize(void); /* Generic device helper functions */ int reset_bus(struct bus *bus); unsigned int scan_bus(struct device *bus, unsigned int max); void assign_resources(struct bus *bus); void enumerate_static_device(void); void enumerate_static_devices(void); const char *dev_name(device_t dev); const char *dev_path(device_t dev); const char *bus_path(struct bus *bus); void dev_set_enabled(device_t dev, int enable); void disable_children(struct bus *bus); /* Option ROM helper functions */ void run_bios(struct device *dev, unsigned long addr); /* Helper functions */ device_t find_dev_path(struct bus *parent, struct device_path *path); device_t alloc_find_dev(struct bus *parent, struct device_path *path); device_t dev_find_device (u16 vendor, u16 device, device_t from); device_t dev_find_class (unsigned int class, device_t from); device_t dev_find_slot (unsigned int bus, unsigned int devfn); device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); device_t dev_find_lapic(unsigned apic_id); int dev_count_cpu(void); void remap_bsp_lapic(struct bus *cpu_bus); device_t add_cpu_device(struct bus *cpu_bus, unsigned apic_id, int enabled); void set_cpu_topology(device_t cpu, unsigned node, unsigned package, unsigned core, unsigned thread); #define amd_cpu_topology(cpu, node, core) \ set_cpu_topology(cpu, node, 0, core, 0) #define intel_cpu_topology(cpu, package, core, thread) \ set_cpu_topology(cpu, 0, package, core, thread) /* Debug functions */ void print_resource_tree(struct device * root, int debug_level, const char *msg); void show_devs_tree(struct device *dev, int debug_level, int depth, int linknum); void show_devs_subtree(struct device *root, int debug_level, const char *msg); void show_all_devs(int debug_level, const char *msg); void show_all_devs_tree(int debug_level, const char *msg); void show_one_resource(int debug_level, struct device *dev, struct resource *resource, const char *comment); void show_all_devs_resources(int debug_level, const char* msg); /* Rounding for boundaries. * Due to some chip bugs, go ahead and round IO to 16 */ #define DEVICE_IO_ALIGN 16 #define DEVICE_MEM_ALIGN 4096 extern struct device_operations default_dev_ops_root; void pci_domain_read_resources(struct device *dev); unsigned int pci_domain_scan_bus(struct device *dev, unsigned int max); unsigned int scan_static_bus(device_t bus, unsigned int max); void fixed_mem_resource(device_t dev, unsigned long index, unsigned long basek, unsigned long sizek, unsigned long type); /* It is the caller's responsibility to adjust regions such that ram_resource() * and mmio_resource() do not overlap. * * Current MTRR setup creates exclusive uncacheable holes for uma_resource() * only and these are allowed to overlap any ram_resource(). This approach * is used for all UMA except Intel Sandy/IvyBridge. */ #define ram_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_CACHEABLE) #define bad_ram_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_IGNORE_MTRR) #define uma_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_UMA_FB) #define mmio_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_IGNORE_MTRR) void tolm_test(void *gp, struct device *dev, struct resource *new); u32 find_pci_tolm(struct bus *bus); #else ROMSTAGE_CONST struct device * dev_find_slot (unsigned int bus, unsigned int devfn); ROMSTAGE_CONST struct device * dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); #endif #endif /* DEVICE_H */