#ifndef DEVICE_H #define DEVICE_H /* * NOTICE: Header is ROMCC tentative. * This header is incompatible with ROMCC and its inclusion leads to 'odd' * build failures. */ #if !defined(__ROMCC__) #include #include #include #include #include struct device; #ifndef __SIMPLE_DEVICE__ typedef struct device *device_t; #endif struct pci_operations; struct pci_bus_operations; struct i2c_bus_operations; struct smbus_bus_operations; struct pnp_mode_ops; struct spi_bus_operations; /* Chip operations */ struct chip_operations { void (*enable_dev)(struct device *dev); void (*init)(void *chip_info); void (*final)(void *chip_info); unsigned int initialized : 1; unsigned int finalized : 1; const char *name; }; #define CHIP_NAME(X) .name = X, struct bus; struct smbios_type11; struct acpi_rsdp; struct device_operations { void (*read_resources)(struct device *dev); void (*set_resources)(struct device *dev); void (*enable_resources)(struct device *dev); void (*init)(struct device *dev); void (*final)(struct device *dev); void (*scan_bus)(struct device *bus); void (*enable)(struct device *dev); void (*disable)(struct device *dev); void (*set_link)(struct device *dev, unsigned int link); void (*reset_bus)(struct bus *bus); #if IS_ENABLED(CONFIG_GENERATE_SMBIOS_TABLES) int (*get_smbios_data)(struct device *dev, int *handle, unsigned long *current); void (*get_smbios_strings)(struct device *dev, struct smbios_type11 *t); #endif #if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES) unsigned long (*write_acpi_tables)(struct device *dev, unsigned long start, struct acpi_rsdp *rsdp); void (*acpi_fill_ssdt_generator)(struct device *dev); void (*acpi_inject_dsdt_generator)(struct device *dev); const char *(*acpi_name)(const struct device *dev); #endif const struct pci_operations *ops_pci; const struct i2c_bus_operations *ops_i2c_bus; const struct spi_bus_operations *ops_spi_bus; const struct smbus_bus_operations *ops_smbus_bus; const struct pci_bus_operations * (*ops_pci_bus)(struct device *dev); const struct pnp_mode_ops *ops_pnp_mode; }; /** * Standard device operations function pointers shims. */ static inline void device_noop(struct device *dev) {} #define DEVICE_NOOP device_noop struct bus { DEVTREE_CONST struct device *dev; /* This bridge device */ DEVTREE_CONST struct device *children; /* devices behind this bridge */ DEVTREE_CONST struct bus *next; /* The next bridge on this device */ unsigned int bridge_ctrl; /* Bridge control register */ uint16_t bridge_cmd; /* Bridge command 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 */ uint32_t hcdn_reg; /* For HyperTransport link */ unsigned int reset_needed : 1; unsigned int disable_relaxed_ordering : 1; unsigned int ht_link_up : 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 { DEVTREE_CONST struct bus *bus; /* bus this device is on, for bridge * devices, it is the up stream bus */ DEVTREE_CONST struct device *sibling; /* next device on this bus */ DEVTREE_CONST struct device *next; /* chain of all devices */ struct device_path path; unsigned int vendor; unsigned int 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; /* 1 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 */ DEVTREE_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 */ DEVTREE_CONST struct bus *link_list; struct device_operations *ops; #if !DEVTREE_EARLY struct chip_operations *chip_ops; const char *name; #endif DEVTREE_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 DEVTREE_CONST struct device dev_root; #ifndef __SIMPLE_DEVICE__ extern struct device *all_devices; /* list of all devices */ extern struct resource *free_resources; extern struct bus *free_links; extern const char mainboard_name[]; #if IS_ENABLED(CONFIG_GFXUMA) /* IGD UMA memory */ extern uint64_t uma_memory_base; extern uint64_t uma_memory_size; #endif /* Generic device interface functions */ device_t alloc_dev(struct bus *parent, struct device_path *path); void dev_initialize_chips(void); void dev_enumerate(void); void dev_configure(void); void dev_enable(void); void dev_initialize(void); void dev_optimize(void); void dev_finalize(void); void dev_finalize_chips(void); /* Generic device helper functions */ int reset_bus(struct bus *bus); void scan_bridges(struct bus *bus); void assign_resources(struct bus *bus); const char *dev_name(device_t dev); const char *dev_path(device_t dev); u32 dev_path_encode(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); bool dev_is_active_bridge(device_t dev); /* 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_path(device_t prev_match, enum device_path_type path_type); device_t dev_find_lapic(unsigned int apic_id); int dev_count_cpu(void); device_t add_cpu_device(struct bus *cpu_bus, unsigned int apic_id, int enabled); void set_cpu_topology(device_t cpu, unsigned int node, unsigned int package, unsigned int core, unsigned int 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); 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); void pci_domain_scan_bus(struct device *dev); void fixed_mem_resource(device_t dev, unsigned long index, unsigned long basek, unsigned long sizek, unsigned long type); void mmconf_resource_init(struct resource *res, resource_t base, int buses); void mmconf_resource(struct device *dev, unsigned long index); /* It is the caller's responsibility to adjust regions such that ram_resource() * and mmio_resource() do not overlap. */ #define ram_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_CACHEABLE) #define reserved_ram_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_CACHEABLE \ | IORESOURCE_RESERVE) #define bad_ram_resource(dev, idx, basek, sizek) \ reserved_ram_resource((dev), (idx), (basek), (sizek)) #define uma_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE) #define mmio_resource(dev, idx, basek, sizek) \ fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE) void tolm_test(void *gp, struct device *dev, struct resource *new); u32 find_pci_tolm(struct bus *bus); #endif DEVTREE_CONST struct device *dev_find_slot(unsigned int bus, unsigned int devfn); DEVTREE_CONST struct device *dev_find_next_pci_device( DEVTREE_CONST struct device *previous_dev); DEVTREE_CONST struct device *dev_find_slot_on_smbus(unsigned int bus, unsigned int addr); DEVTREE_CONST struct device *dev_find_slot_pnp(u16 port, u16 device); void scan_smbus(struct device *bus); void scan_generic_bus(struct device *bus); void scan_static_bus(struct device *bus); void scan_lpc_bus(struct device *bus); #endif /* !defined(__ROMCC__) */ #endif /* DEVICE_H */