Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 1 | #ifndef DEVICE_H |
| 2 | #define DEVICE_H |
| 3 | |
Eric Biederman | 9bdb460 | 2003-09-01 23:17:58 +0000 | [diff] [blame] | 4 | #include <stdint.h> |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 5 | #include <device/resource.h> |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 6 | #include <device/path.h> |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 7 | |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 8 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 9 | struct device; |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 10 | typedef struct device * device_t; |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 11 | struct pci_operations; |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 12 | struct pci_bus_operations; |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 13 | struct smbus_bus_operations; |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 14 | |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 15 | /* Chip operations */ |
| 16 | struct chip_operations { |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 17 | void (*enable_dev)(struct device *dev); |
Myles Watson | 6e23576 | 2009-09-29 14:56:15 +0000 | [diff] [blame] | 18 | const char *name; |
Sven Schnelle | 164bcfd | 2011-08-14 20:56:34 +0200 | [diff] [blame] | 19 | #if CONFIG_GENERATE_SMBIOS_TABLES |
| 20 | int (*get_smbios_data)(device_t dev, int *handle, unsigned long *current); |
| 21 | #endif |
Eric Biederman | 7003ba4 | 2004-10-16 06:20:29 +0000 | [diff] [blame] | 22 | }; |
| 23 | |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 24 | #define CHIP_NAME(X) .name = X, |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 25 | |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 26 | struct bus; |
| 27 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 28 | struct device_operations { |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 29 | void (*read_resources)(device_t dev); |
| 30 | void (*set_resources)(device_t dev); |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 31 | void (*enable_resources)(device_t dev); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 32 | void (*init)(device_t dev); |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 33 | unsigned int (*scan_bus)(device_t bus, unsigned int max); |
Eric Biederman | 4086d16 | 2003-07-17 03:26:03 +0000 | [diff] [blame] | 34 | void (*enable)(device_t dev); |
Patrick Georgi | 5869fa2 | 2012-07-20 12:29:33 +0200 | [diff] [blame] | 35 | void (*disable)(device_t dev); |
Yinghai Lu | 7213d0f | 2004-12-03 03:39:04 +0000 | [diff] [blame] | 36 | void (*set_link)(device_t dev, unsigned int link); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 37 | void (*reset_bus)(struct bus *bus); |
Sven Schnelle | 164bcfd | 2011-08-14 20:56:34 +0200 | [diff] [blame] | 38 | #if CONFIG_GENERATE_SMBIOS_TABLES |
| 39 | int (*get_smbios_data)(device_t dev, int *handle, unsigned long *current); |
| 40 | #endif |
Eric Biederman | a9e632c | 2004-11-18 22:38:08 +0000 | [diff] [blame] | 41 | const struct pci_operations *ops_pci; |
| 42 | const struct smbus_bus_operations *ops_smbus_bus; |
| 43 | const struct pci_bus_operations *ops_pci_bus; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 44 | }; |
| 45 | |
| 46 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 47 | struct bus { |
| 48 | device_t dev; /* This bridge device */ |
| 49 | device_t children; /* devices behind this bridge */ |
Myles Watson | 894a347 | 2010-06-09 22:41:35 +0000 | [diff] [blame] | 50 | struct bus *next; /* The next bridge on this device */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 51 | unsigned bridge_ctrl; /* Bridge control register */ |
Myles Watson | 894a347 | 2010-06-09 22:41:35 +0000 | [diff] [blame] | 52 | unsigned char link_num; /* The index of this link */ |
Yinghai Lu | d4b278c | 2006-10-04 20:46:15 +0000 | [diff] [blame] | 53 | uint16_t secondary; /* secondary bus number */ |
| 54 | uint16_t subordinate; /* max subordinate bus number */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 55 | unsigned char cap; /* PCi capability offset */ |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 56 | unsigned reset_needed : 1; |
| 57 | unsigned disable_relaxed_ordering : 1; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 58 | }; |
| 59 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 60 | /* |
Eric Biederman | 2c018fb | 2003-07-21 20:13:45 +0000 | [diff] [blame] | 61 | * There is one device structure for each slot-number/function-number |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 62 | * combination: |
| 63 | */ |
| 64 | |
Sven Schnelle | 0fa50a1 | 2012-06-21 22:19:48 +0200 | [diff] [blame] | 65 | struct pci_irq_info { |
| 66 | unsigned int ioapic_irq_pin; |
| 67 | unsigned int ioapic_src_pin; |
| 68 | unsigned int ioapic_dst_id; |
| 69 | unsigned int ioapic_flags; |
| 70 | }; |
| 71 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 72 | struct device { |
Li-Ta Lo | 0493069 | 2004-11-25 17:37:19 +0000 | [diff] [blame] | 73 | struct bus * bus; /* bus this device is on, for bridge |
| 74 | * devices, it is the up stream bus */ |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 75 | device_t sibling; /* next device on this bus */ |
| 76 | device_t next; /* chain of all devices */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 77 | |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 78 | struct device_path path; |
Eric Biederman | b78c197 | 2004-10-14 20:54:17 +0000 | [diff] [blame] | 79 | unsigned vendor; |
| 80 | unsigned device; |
Sven Schnelle | b8269e2 | 2011-03-01 21:51:29 +0000 | [diff] [blame] | 81 | u16 subsystem_vendor; |
| 82 | u16 subsystem_device; |
Stefan Reinauer | debb11f | 2008-10-29 04:46:52 +0000 | [diff] [blame] | 83 | unsigned int class; /* 3 bytes: (base, sub, prog-if) */ |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 84 | unsigned int hdr_type; /* PCI header type */ |
Li-Ta Lo | 69c5a90 | 2004-04-29 20:08:54 +0000 | [diff] [blame] | 85 | unsigned int enabled : 1; /* set if we should enable the device */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 86 | unsigned int initialized : 1; /* set if we have initialized the device */ |
Eric Biederman | dbec2d4 | 2004-10-21 10:44:08 +0000 | [diff] [blame] | 87 | unsigned int on_mainboard : 1; |
Sven Schnelle | 0fa50a1 | 2012-06-21 22:19:48 +0200 | [diff] [blame] | 88 | struct pci_irq_info pci_irq_info[4]; |
Myles Watson | 29cc9ed | 2009-07-02 18:56:24 +0000 | [diff] [blame] | 89 | u8 command; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 90 | |
Li-Ta Lo | 85e76c6 | 2004-12-27 17:53:45 +0000 | [diff] [blame] | 91 | /* Base registers for this device. I/O, MEM and Expansion ROM */ |
Myles Watson | c25cc11 | 2010-05-21 14:33:48 +0000 | [diff] [blame] | 92 | struct resource *resource_list; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 93 | |
Myles Watson | 29cc9ed | 2009-07-02 18:56:24 +0000 | [diff] [blame] | 94 | /* links are (downstream) buses attached to the device, usually a leaf |
Myles Watson | c25cc11 | 2010-05-21 14:33:48 +0000 | [diff] [blame] | 95 | * device with no children has 0 buses attached and a bridge has 1 bus |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 96 | */ |
Myles Watson | 894a347 | 2010-06-09 22:41:35 +0000 | [diff] [blame] | 97 | struct bus *link_list; |
Eric Biederman | e9a271e3 | 2003-09-02 03:36:25 +0000 | [diff] [blame] | 98 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 99 | struct device_operations *ops; |
Uwe Hermann | 312673c | 2009-10-27 21:49:33 +0000 | [diff] [blame] | 100 | const struct chip_operations *chip_ops; |
Eric Biederman | 216525d | 2004-10-16 02:48:37 +0000 | [diff] [blame] | 101 | void *chip_info; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 102 | }; |
| 103 | |
Myles Watson | 3fe6b70 | 2009-10-09 20:13:43 +0000 | [diff] [blame] | 104 | /** |
| 105 | * This is the root of the device tree. The device tree is defined in the |
| 106 | * static.c file and is generated by the config tool at compile time. |
| 107 | */ |
| 108 | extern struct device dev_root; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 109 | extern struct device *all_devices; /* list of all devices */ |
| 110 | |
Myles Watson | c25cc11 | 2010-05-21 14:33:48 +0000 | [diff] [blame] | 111 | extern struct resource *free_resources; |
Myles Watson | 894a347 | 2010-06-09 22:41:35 +0000 | [diff] [blame] | 112 | extern struct bus *free_links; |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 113 | |
Kyösti Mälkki | cc55b9b | 2012-07-11 07:55:21 +0300 | [diff] [blame] | 114 | /* IGD UMA memory */ |
Kyösti Mälkki | cc55b9b | 2012-07-11 07:55:21 +0300 | [diff] [blame] | 115 | extern uint64_t uma_memory_base; |
| 116 | extern uint64_t uma_memory_size; |
| 117 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 118 | /* Generic device interface functions */ |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 119 | device_t alloc_dev(struct bus *parent, struct device_path *path); |
| 120 | void dev_enumerate(void); |
| 121 | void dev_configure(void); |
| 122 | void dev_enable(void); |
| 123 | void dev_initialize(void); |
| 124 | void dev_optimize(void); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 125 | |
| 126 | /* Generic device helper functions */ |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 127 | int reset_bus(struct bus *bus); |
| 128 | unsigned int scan_bus(struct device *bus, unsigned int max); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 129 | void assign_resources(struct bus *bus); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 130 | void enumerate_static_device(void); |
| 131 | void enumerate_static_devices(void); |
| 132 | const char *dev_path(device_t dev); |
Yinghai Lu | 13f1c2a | 2005-07-08 02:49:49 +0000 | [diff] [blame] | 133 | const char *bus_path(struct bus *bus); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 134 | void dev_set_enabled(device_t dev, int enable); |
| 135 | void disable_children(struct bus *bus); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 136 | |
Myles Watson | b025911 | 2010-03-05 18:27:19 +0000 | [diff] [blame] | 137 | /* Option ROM helper functions */ |
| 138 | void run_bios(struct device *dev, unsigned long addr); |
| 139 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 140 | /* Helper functions */ |
Eric Biederman | 992cd00 | 2004-10-14 21:10:23 +0000 | [diff] [blame] | 141 | device_t find_dev_path(struct bus *parent, struct device_path *path); |
Eric Biederman | 83b991a | 2003-10-11 06:20:25 +0000 | [diff] [blame] | 142 | device_t alloc_find_dev(struct bus *parent, struct device_path *path); |
Uwe Hermann | e487047 | 2010-11-04 23:23:47 +0000 | [diff] [blame] | 143 | device_t dev_find_device (u16 vendor, u16 device, device_t from); |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 144 | device_t dev_find_class (unsigned int class, device_t from); |
| 145 | device_t dev_find_slot (unsigned int bus, unsigned int devfn); |
arch import user (historical) | 98d0d30 | 2005-07-06 17:13:46 +0000 | [diff] [blame] | 146 | device_t dev_find_slot_on_smbus (unsigned int bus, unsigned int addr); |
Duncan Laurie | 6f88a6e | 2011-07-18 10:41:36 -0700 | [diff] [blame] | 147 | device_t dev_find_lapic(unsigned apic_id); |
Stefan Reinauer | dc8448fd | 2012-03-30 13:52:58 -0700 | [diff] [blame] | 148 | int dev_count_cpu(void); |
arch import user (historical) | 98d0d30 | 2005-07-06 17:13:46 +0000 | [diff] [blame] | 149 | |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 150 | /* Debug functions */ |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 151 | void print_resource_tree(struct device * root, int debug_level, |
| 152 | const char *msg); |
| 153 | void show_devs_tree(struct device *dev, int debug_level, int depth, int linknum); |
| 154 | void show_devs_subtree(struct device *root, int debug_level, const char *msg); |
| 155 | void show_all_devs(int debug_level, const char *msg); |
Maciej Pijanka | ea92185 | 2009-10-27 14:29:29 +0000 | [diff] [blame] | 156 | void show_all_devs_tree(int debug_level, const char *msg); |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 157 | void show_one_resource(int debug_level, struct device *dev, |
| 158 | struct resource *resource, const char *comment); |
| 159 | void show_all_devs_resources(int debug_level, const char* msg); |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 160 | |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 161 | /* Rounding for boundaries. |
Myles Watson | bb3d812 | 2009-05-11 22:45:35 +0000 | [diff] [blame] | 162 | * Due to some chip bugs, go ahead and round IO to 16 |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 163 | */ |
Stefan Reinauer | 14e2277 | 2010-04-27 06:56:47 +0000 | [diff] [blame] | 164 | #define DEVICE_IO_ALIGN 16 |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 165 | #define DEVICE_MEM_ALIGN 4096 |
| 166 | |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 167 | extern struct device_operations default_dev_ops_root; |
Kyösti Mälkki | 15cf0ad | 2012-07-27 19:22:26 +0300 | [diff] [blame] | 168 | extern struct chip_operations mainboard_ops; |
Myles Watson | 29cc9ed | 2009-07-02 18:56:24 +0000 | [diff] [blame] | 169 | void pci_domain_read_resources(struct device *dev); |
| 170 | unsigned int pci_domain_scan_bus(struct device *dev, unsigned int max); |
Stefan Reinauer | be7f798 | 2009-03-13 15:42:27 +0000 | [diff] [blame] | 171 | unsigned int scan_static_bus(device_t bus, unsigned int max); |
Uwe Hermann | 4b42a62 | 2010-10-11 19:36:13 +0000 | [diff] [blame] | 172 | |
Kyösti Mälkki | ecf1ed4 | 2012-07-27 08:37:12 +0300 | [diff] [blame] | 173 | void fixed_mem_resource(device_t dev, unsigned long index, |
| 174 | unsigned long basek, unsigned long sizek, unsigned long type); |
| 175 | |
Kyösti Mälkki | 1ec5e74 | 2012-07-26 23:51:20 +0300 | [diff] [blame] | 176 | |
| 177 | /* It is the caller's responsibility to adjust regions such that ram_resource() |
| 178 | * and mmio_resource() do not overlap. |
| 179 | * |
| 180 | * Current MTRR setup creates exclusive uncacheable holes for uma_resource() |
| 181 | * only and these are allowed to overlap any ram_resource(). This approach |
| 182 | * is used for all UMA except Intel Sandy/IvyBridge. |
| 183 | */ |
Kyösti Mälkki | ecf1ed4 | 2012-07-27 08:37:12 +0300 | [diff] [blame] | 184 | #define ram_resource(dev, idx, basek, sizek) \ |
| 185 | fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_CACHEABLE) |
| 186 | |
| 187 | #define bad_ram_resource(dev, idx, basek, sizek) \ |
Kyösti Mälkki | 1ec5e74 | 2012-07-26 23:51:20 +0300 | [diff] [blame] | 188 | fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_IGNORE_MTRR) |
Kyösti Mälkki | ecf1ed4 | 2012-07-27 08:37:12 +0300 | [diff] [blame] | 189 | |
| 190 | #define uma_resource(dev, idx, basek, sizek) \ |
| 191 | fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_UMA_FB) |
| 192 | |
| 193 | #define mmio_resource(dev, idx, basek, sizek) \ |
Kyösti Mälkki | 1ec5e74 | 2012-07-26 23:51:20 +0300 | [diff] [blame] | 194 | fixed_mem_resource(dev, idx, basek, sizek, IORESOURCE_RESERVE | IORESOURCE_IGNORE_MTRR) |
Kyösti Mälkki | ecf1ed4 | 2012-07-27 08:37:12 +0300 | [diff] [blame] | 195 | |
Uwe Hermann | 4b42a62 | 2010-10-11 19:36:13 +0000 | [diff] [blame] | 196 | void tolm_test(void *gp, struct device *dev, struct resource *new); |
| 197 | u32 find_pci_tolm(struct bus *bus); |
| 198 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 199 | #endif /* DEVICE_H */ |