1 | /* SPDX-License-Identifier: GPL-2.0 */ |
---|---|
2 | /* |
3 | * Thunderbolt driver - bus logic (NHI independent) |
4 | * |
5 | * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com> |
6 | * Copyright (C) 2018, Intel Corporation |
7 | */ |
8 | |
9 | #ifndef TB_H_ |
10 | #define TB_H_ |
11 | |
12 | #include <linux/debugfs.h> |
13 | #include <linux/nvmem-provider.h> |
14 | #include <linux/pci.h> |
15 | #include <linux/thunderbolt.h> |
16 | #include <linux/uuid.h> |
17 | #include <linux/bitfield.h> |
18 | |
19 | #include "tb_regs.h" |
20 | #include "ctl.h" |
21 | #include "dma_port.h" |
22 | |
23 | /* Keep link controller awake during update */ |
24 | #define QUIRK_FORCE_POWER_LINK_CONTROLLER BIT(0) |
25 | /* Disable CLx if not supported */ |
26 | #define QUIRK_NO_CLX BIT(1) |
27 | /* Need to keep power on while USB4 port is in redrive mode */ |
28 | #define QUIRK_KEEP_POWER_IN_DP_REDRIVE BIT(2) |
29 | |
30 | /** |
31 | * struct tb_nvm - Structure holding NVM information |
32 | * @dev: Owner of the NVM |
33 | * @major: Major version number of the active NVM portion |
34 | * @minor: Minor version number of the active NVM portion |
35 | * @id: Identifier used with both NVM portions |
36 | * @active: Active portion NVMem device |
37 | * @active_size: Size in bytes of the active NVM |
38 | * @non_active: Non-active portion NVMem device |
39 | * @buf: Buffer where the NVM image is stored before it is written to |
40 | * the actual NVM flash device |
41 | * @buf_data_start: Where the actual image starts after skipping |
42 | * possible headers |
43 | * @buf_data_size: Number of bytes actually consumed by the new NVM |
44 | * image |
45 | * @authenticating: The device is authenticating the new NVM |
46 | * @flushed: The image has been flushed to the storage area |
47 | * @vops: Router vendor specific NVM operations (optional) |
48 | * |
49 | * The user of this structure needs to handle serialization of possible |
50 | * concurrent access. |
51 | */ |
52 | struct tb_nvm { |
53 | struct device *dev; |
54 | u32 major; |
55 | u32 minor; |
56 | int id; |
57 | struct nvmem_device *active; |
58 | size_t active_size; |
59 | struct nvmem_device *non_active; |
60 | void *buf; |
61 | void *buf_data_start; |
62 | size_t buf_data_size; |
63 | bool authenticating; |
64 | bool flushed; |
65 | const struct tb_nvm_vendor_ops *vops; |
66 | }; |
67 | |
68 | enum tb_nvm_write_ops { |
69 | WRITE_AND_AUTHENTICATE = 1, |
70 | WRITE_ONLY = 2, |
71 | AUTHENTICATE_ONLY = 3, |
72 | }; |
73 | |
74 | #define TB_SWITCH_KEY_SIZE 32 |
75 | #define TB_SWITCH_MAX_DEPTH 6 |
76 | #define USB4_SWITCH_MAX_DEPTH 5 |
77 | |
78 | /** |
79 | * enum tb_switch_tmu_mode - TMU mode |
80 | * @TB_SWITCH_TMU_MODE_OFF: TMU is off |
81 | * @TB_SWITCH_TMU_MODE_LOWRES: Uni-directional, normal mode |
82 | * @TB_SWITCH_TMU_MODE_HIFI_UNI: Uni-directional, HiFi mode |
83 | * @TB_SWITCH_TMU_MODE_HIFI_BI: Bi-directional, HiFi mode |
84 | * @TB_SWITCH_TMU_MODE_MEDRES_ENHANCED_UNI: Enhanced Uni-directional, MedRes mode |
85 | * |
86 | * Ordering is based on TMU accuracy level (highest last). |
87 | */ |
88 | enum tb_switch_tmu_mode { |
89 | TB_SWITCH_TMU_MODE_OFF, |
90 | TB_SWITCH_TMU_MODE_LOWRES, |
91 | TB_SWITCH_TMU_MODE_HIFI_UNI, |
92 | TB_SWITCH_TMU_MODE_HIFI_BI, |
93 | TB_SWITCH_TMU_MODE_MEDRES_ENHANCED_UNI, |
94 | }; |
95 | |
96 | /** |
97 | * struct tb_switch_tmu - Structure holding router TMU configuration |
98 | * @cap: Offset to the TMU capability (%0 if not found) |
99 | * @has_ucap: Does the switch support uni-directional mode |
100 | * @mode: TMU mode related to the upstream router. Reflects the HW |
101 | * setting. Don't care for host router. |
102 | * @mode_request: TMU mode requested to set. Related to upstream router. |
103 | * Don't care for host router. |
104 | */ |
105 | struct tb_switch_tmu { |
106 | int cap; |
107 | bool has_ucap; |
108 | enum tb_switch_tmu_mode mode; |
109 | enum tb_switch_tmu_mode mode_request; |
110 | }; |
111 | |
112 | /** |
113 | * struct tb_switch - a thunderbolt switch |
114 | * @dev: Device for the switch |
115 | * @config: Switch configuration |
116 | * @ports: Ports in this switch |
117 | * @dma_port: If the switch has port supporting DMA configuration based |
118 | * mailbox this will hold the pointer to that (%NULL |
119 | * otherwise). If set it also means the switch has |
120 | * upgradeable NVM. |
121 | * @tmu: The switch TMU configuration |
122 | * @tb: Pointer to the domain the switch belongs to |
123 | * @uid: Unique ID of the switch |
124 | * @uuid: UUID of the switch (or %NULL if not supported) |
125 | * @vendor: Vendor ID of the switch |
126 | * @device: Device ID of the switch |
127 | * @vendor_name: Name of the vendor (or %NULL if not known) |
128 | * @device_name: Name of the device (or %NULL if not known) |
129 | * @link_speed: Speed of the link in Gb/s |
130 | * @link_width: Width of the upstream facing link |
131 | * @preferred_link_width: Router preferred link width (only set for Gen 4 links) |
132 | * @link_usb4: Upstream link is USB4 |
133 | * @generation: Switch Thunderbolt generation |
134 | * @cap_plug_events: Offset to the plug events capability (%0 if not found) |
135 | * @cap_vsec_tmu: Offset to the TMU vendor specific capability (%0 if not found) |
136 | * @cap_lc: Offset to the link controller capability (%0 if not found) |
137 | * @cap_lp: Offset to the low power (CLx for TBT) capability (%0 if not found) |
138 | * @is_unplugged: The switch is going away |
139 | * @drom: DROM of the switch (%NULL if not found) |
140 | * @nvm: Pointer to the NVM if the switch has one (%NULL otherwise) |
141 | * @no_nvm_upgrade: Prevent NVM upgrade of this switch |
142 | * @safe_mode: The switch is in safe-mode |
143 | * @boot: Whether the switch was already authorized on boot or not |
144 | * @rpm: The switch supports runtime PM |
145 | * @authorized: Whether the switch is authorized by user or policy |
146 | * @security_level: Switch supported security level |
147 | * @debugfs_dir: Pointer to the debugfs structure |
148 | * @key: Contains the key used to challenge the device or %NULL if not |
149 | * supported. Size of the key is %TB_SWITCH_KEY_SIZE. |
150 | * @connection_id: Connection ID used with ICM messaging |
151 | * @connection_key: Connection key used with ICM messaging |
152 | * @link: Root switch link this switch is connected (ICM only) |
153 | * @depth: Depth in the chain this switch is connected (ICM only) |
154 | * @rpm_complete: Completion used to wait for runtime resume to |
155 | * complete (ICM only) |
156 | * @quirks: Quirks used for this Thunderbolt switch |
157 | * @credit_allocation: Are the below buffer allocation parameters valid |
158 | * @max_usb3_credits: Router preferred number of buffers for USB 3.x |
159 | * @min_dp_aux_credits: Router preferred minimum number of buffers for DP AUX |
160 | * @min_dp_main_credits: Router preferred minimum number of buffers for DP MAIN |
161 | * @max_pcie_credits: Router preferred number of buffers for PCIe |
162 | * @max_dma_credits: Router preferred number of buffers for DMA/P2P |
163 | * @clx: CLx states on the upstream link of the router |
164 | * @drom_blob: DROM debugfs blob wrapper |
165 | * |
166 | * When the switch is being added or removed to the domain (other |
167 | * switches) you need to have domain lock held. |
168 | * |
169 | * In USB4 terminology this structure represents a router. |
170 | */ |
171 | struct tb_switch { |
172 | struct device dev; |
173 | struct tb_regs_switch_header config; |
174 | struct tb_port *ports; |
175 | struct tb_dma_port *dma_port; |
176 | struct tb_switch_tmu tmu; |
177 | struct tb *tb; |
178 | u64 uid; |
179 | uuid_t *uuid; |
180 | u16 vendor; |
181 | u16 device; |
182 | const char *vendor_name; |
183 | const char *device_name; |
184 | unsigned int link_speed; |
185 | enum tb_link_width link_width; |
186 | enum tb_link_width preferred_link_width; |
187 | bool link_usb4; |
188 | unsigned int generation; |
189 | int cap_plug_events; |
190 | int cap_vsec_tmu; |
191 | int cap_lc; |
192 | int cap_lp; |
193 | bool is_unplugged; |
194 | u8 *drom; |
195 | struct tb_nvm *nvm; |
196 | bool no_nvm_upgrade; |
197 | bool safe_mode; |
198 | bool boot; |
199 | bool rpm; |
200 | unsigned int authorized; |
201 | enum tb_security_level security_level; |
202 | struct dentry *debugfs_dir; |
203 | u8 *key; |
204 | u8 connection_id; |
205 | u8 connection_key; |
206 | u8 link; |
207 | u8 depth; |
208 | struct completion rpm_complete; |
209 | unsigned long quirks; |
210 | bool credit_allocation; |
211 | unsigned int max_usb3_credits; |
212 | unsigned int min_dp_aux_credits; |
213 | unsigned int min_dp_main_credits; |
214 | unsigned int max_pcie_credits; |
215 | unsigned int max_dma_credits; |
216 | unsigned int clx; |
217 | #ifdef CONFIG_DEBUG_FS |
218 | struct debugfs_blob_wrapper drom_blob; |
219 | #endif |
220 | }; |
221 | |
222 | /** |
223 | * struct tb_bandwidth_group - Bandwidth management group |
224 | * @tb: Pointer to the domain the group belongs to |
225 | * @index: Index of the group (aka Group_ID). Valid values %1-%7 |
226 | * @ports: DP IN adapters belonging to this group are linked here |
227 | * @reserved: Bandwidth released by one tunnel in the group, available |
228 | * to others. This is reported as part of estimated_bw for |
229 | * the group. |
230 | * @release_work: Worker to release the @reserved if it is not used by |
231 | * any of the tunnels. |
232 | * |
233 | * Any tunnel that requires isochronous bandwidth (that's DP for now) is |
234 | * attached to a bandwidth group. All tunnels going through the same |
235 | * USB4 links share the same group and can dynamically distribute the |
236 | * bandwidth within the group. |
237 | */ |
238 | struct tb_bandwidth_group { |
239 | struct tb *tb; |
240 | int index; |
241 | struct list_head ports; |
242 | int reserved; |
243 | struct delayed_work release_work; |
244 | }; |
245 | |
246 | /** |
247 | * struct tb_port - a thunderbolt port, part of a tb_switch |
248 | * @config: Cached port configuration read from registers |
249 | * @sw: Switch the port belongs to |
250 | * @remote: Remote port (%NULL if not connected) |
251 | * @xdomain: Remote host (%NULL if not connected) |
252 | * @cap_phy: Offset, zero if not found |
253 | * @cap_tmu: Offset of the adapter specific TMU capability (%0 if not present) |
254 | * @cap_adap: Offset of the adapter specific capability (%0 if not present) |
255 | * @cap_usb4: Offset to the USB4 port capability (%0 if not present) |
256 | * @usb4: Pointer to the USB4 port structure (only if @cap_usb4 is != %0) |
257 | * @port: Port number on switch |
258 | * @disabled: Disabled by eeprom or enabled but not implemented |
259 | * @bonded: true if the port is bonded (two lanes combined as one) |
260 | * @dual_link_port: If the switch is connected using two ports, points |
261 | * to the other port. |
262 | * @link_nr: Is this primary or secondary port on the dual_link. |
263 | * @in_hopids: Currently allocated input HopIDs |
264 | * @out_hopids: Currently allocated output HopIDs |
265 | * @list: Used to link ports to DP resources list |
266 | * @total_credits: Total number of buffers available for this port |
267 | * @ctl_credits: Buffers reserved for control path |
268 | * @dma_credits: Number of credits allocated for DMA tunneling for all |
269 | * DMA paths through this port. |
270 | * @group: Bandwidth allocation group the adapter is assigned to. Only |
271 | * used for DP IN adapters for now. |
272 | * @group_list: The adapter is linked to the group's list of ports through this |
273 | * @max_bw: Maximum possible bandwidth through this adapter if set to |
274 | * non-zero. |
275 | * @redrive: For DP IN, if true the adapter is in redrive mode. |
276 | * |
277 | * In USB4 terminology this structure represents an adapter (protocol or |
278 | * lane adapter). |
279 | */ |
280 | struct tb_port { |
281 | struct tb_regs_port_header config; |
282 | struct tb_switch *sw; |
283 | struct tb_port *remote; |
284 | struct tb_xdomain *xdomain; |
285 | int cap_phy; |
286 | int cap_tmu; |
287 | int cap_adap; |
288 | int cap_usb4; |
289 | struct usb4_port *usb4; |
290 | u8 port; |
291 | bool disabled; |
292 | bool bonded; |
293 | struct tb_port *dual_link_port; |
294 | u8 link_nr:1; |
295 | struct ida in_hopids; |
296 | struct ida out_hopids; |
297 | struct list_head list; |
298 | unsigned int total_credits; |
299 | unsigned int ctl_credits; |
300 | unsigned int dma_credits; |
301 | struct tb_bandwidth_group *group; |
302 | struct list_head group_list; |
303 | unsigned int max_bw; |
304 | bool redrive; |
305 | }; |
306 | |
307 | /** |
308 | * struct usb4_port - USB4 port device |
309 | * @dev: Device for the port |
310 | * @port: Pointer to the lane 0 adapter |
311 | * @can_offline: Does the port have necessary platform support to moved |
312 | * it into offline mode and back |
313 | * @offline: The port is currently in offline mode |
314 | * @margining: Pointer to margining structure if enabled |
315 | */ |
316 | struct usb4_port { |
317 | struct device dev; |
318 | struct tb_port *port; |
319 | bool can_offline; |
320 | bool offline; |
321 | #ifdef CONFIG_USB4_DEBUGFS_MARGINING |
322 | struct tb_margining *margining; |
323 | #endif |
324 | }; |
325 | |
326 | /** |
327 | * tb_retimer: Thunderbolt retimer |
328 | * @dev: Device for the retimer |
329 | * @tb: Pointer to the domain the retimer belongs to |
330 | * @index: Retimer index facing the router USB4 port |
331 | * @vendor: Vendor ID of the retimer |
332 | * @device: Device ID of the retimer |
333 | * @port: Pointer to the lane 0 adapter |
334 | * @nvm: Pointer to the NVM if the retimer has one (%NULL otherwise) |
335 | * @no_nvm_upgrade: Prevent NVM upgrade of this retimer |
336 | * @auth_status: Status of last NVM authentication |
337 | * @margining: Pointer to margining structure if enabled |
338 | */ |
339 | struct tb_retimer { |
340 | struct device dev; |
341 | struct tb *tb; |
342 | u8 index; |
343 | u32 vendor; |
344 | u32 device; |
345 | struct tb_port *port; |
346 | struct tb_nvm *nvm; |
347 | bool no_nvm_upgrade; |
348 | u32 auth_status; |
349 | #ifdef CONFIG_USB4_DEBUGFS_MARGINING |
350 | struct tb_margining *margining; |
351 | #endif |
352 | }; |
353 | |
354 | /** |
355 | * struct tb_path_hop - routing information for a tb_path |
356 | * @in_port: Ingress port of a switch |
357 | * @out_port: Egress port of a switch where the packet is routed out |
358 | * (must be on the same switch than @in_port) |
359 | * @in_hop_index: HopID where the path configuration entry is placed in |
360 | * the path config space of @in_port. |
361 | * @in_counter_index: Used counter index (not used in the driver |
362 | * currently, %-1 to disable) |
363 | * @next_hop_index: HopID of the packet when it is routed out from @out_port |
364 | * @initial_credits: Number of initial flow control credits allocated for |
365 | * the path |
366 | * @nfc_credits: Number of non-flow controlled buffers allocated for the |
367 | * @in_port. |
368 | * @pm_support: Set path PM packet support bit to 1 (for USB4 v2 routers) |
369 | * |
370 | * Hop configuration is always done on the IN port of a switch. |
371 | * in_port and out_port have to be on the same switch. Packets arriving on |
372 | * in_port with "hop" = in_hop_index will get routed to through out_port. The |
373 | * next hop to take (on out_port->remote) is determined by |
374 | * next_hop_index. When routing packet to another switch (out->remote is |
375 | * set) the @next_hop_index must match the @in_hop_index of that next |
376 | * hop to make routing possible. |
377 | * |
378 | * in_counter_index is the index of a counter (in TB_CFG_COUNTERS) on the in |
379 | * port. |
380 | */ |
381 | struct tb_path_hop { |
382 | struct tb_port *in_port; |
383 | struct tb_port *out_port; |
384 | int in_hop_index; |
385 | int in_counter_index; |
386 | int next_hop_index; |
387 | unsigned int initial_credits; |
388 | unsigned int nfc_credits; |
389 | bool pm_support; |
390 | }; |
391 | |
392 | /** |
393 | * enum tb_path_port - path options mask |
394 | * @TB_PATH_NONE: Do not activate on any hop on path |
395 | * @TB_PATH_SOURCE: Activate on the first hop (out of src) |
396 | * @TB_PATH_INTERNAL: Activate on the intermediate hops (not the first/last) |
397 | * @TB_PATH_DESTINATION: Activate on the last hop (into dst) |
398 | * @TB_PATH_ALL: Activate on all hops on the path |
399 | */ |
400 | enum tb_path_port { |
401 | TB_PATH_NONE = 0, |
402 | TB_PATH_SOURCE = 1, |
403 | TB_PATH_INTERNAL = 2, |
404 | TB_PATH_DESTINATION = 4, |
405 | TB_PATH_ALL = 7, |
406 | }; |
407 | |
408 | /** |
409 | * struct tb_path - a unidirectional path between two ports |
410 | * @tb: Pointer to the domain structure |
411 | * @name: Name of the path (used for debugging) |
412 | * @ingress_shared_buffer: Shared buffering used for ingress ports on the path |
413 | * @egress_shared_buffer: Shared buffering used for egress ports on the path |
414 | * @ingress_fc_enable: Flow control for ingress ports on the path |
415 | * @egress_fc_enable: Flow control for egress ports on the path |
416 | * @priority: Priority group if the path |
417 | * @weight: Weight of the path inside the priority group |
418 | * @drop_packages: Drop packages from queue tail or head |
419 | * @activated: Is the path active |
420 | * @clear_fc: Clear all flow control from the path config space entries |
421 | * when deactivating this path |
422 | * @hops: Path hops |
423 | * @path_length: How many hops the path uses |
424 | * @alloc_hopid: Does this path consume port HopID |
425 | * |
426 | * A path consists of a number of hops (see &struct tb_path_hop). To |
427 | * establish a PCIe tunnel two paths have to be created between the two |
428 | * PCIe ports. |
429 | */ |
430 | struct tb_path { |
431 | struct tb *tb; |
432 | const char *name; |
433 | enum tb_path_port ingress_shared_buffer; |
434 | enum tb_path_port egress_shared_buffer; |
435 | enum tb_path_port ingress_fc_enable; |
436 | enum tb_path_port egress_fc_enable; |
437 | |
438 | unsigned int priority:3; |
439 | int weight:4; |
440 | bool drop_packages; |
441 | bool activated; |
442 | bool clear_fc; |
443 | struct tb_path_hop *hops; |
444 | int path_length; |
445 | bool alloc_hopid; |
446 | }; |
447 | |
448 | /* HopIDs 0-7 are reserved by the Thunderbolt protocol */ |
449 | #define TB_PATH_MIN_HOPID 8 |
450 | /* |
451 | * Support paths from the farthest (depth 6) router to the host and back |
452 | * to the same level (not necessarily to the same router). |
453 | */ |
454 | #define TB_PATH_MAX_HOPS (7 * 2) |
455 | |
456 | /* Possible wake types */ |
457 | #define TB_WAKE_ON_CONNECT BIT(0) |
458 | #define TB_WAKE_ON_DISCONNECT BIT(1) |
459 | #define TB_WAKE_ON_USB4 BIT(2) |
460 | #define TB_WAKE_ON_USB3 BIT(3) |
461 | #define TB_WAKE_ON_PCIE BIT(4) |
462 | #define TB_WAKE_ON_DP BIT(5) |
463 | |
464 | /* CL states */ |
465 | #define TB_CL0S BIT(0) |
466 | #define TB_CL1 BIT(1) |
467 | #define TB_CL2 BIT(2) |
468 | |
469 | /** |
470 | * struct tb_cm_ops - Connection manager specific operations vector |
471 | * @driver_ready: Called right after control channel is started. Used by |
472 | * ICM to send driver ready message to the firmware. |
473 | * @start: Starts the domain |
474 | * @stop: Stops the domain |
475 | * @deinit: Perform any cleanup after the domain is stopped but before |
476 | * it is unregistered. Called without @tb->lock taken. Optional. |
477 | * @suspend_noirq: Connection manager specific suspend_noirq |
478 | * @resume_noirq: Connection manager specific resume_noirq |
479 | * @suspend: Connection manager specific suspend |
480 | * @freeze_noirq: Connection manager specific freeze_noirq |
481 | * @thaw_noirq: Connection manager specific thaw_noirq |
482 | * @complete: Connection manager specific complete |
483 | * @runtime_suspend: Connection manager specific runtime_suspend |
484 | * @runtime_resume: Connection manager specific runtime_resume |
485 | * @runtime_suspend_switch: Runtime suspend a switch |
486 | * @runtime_resume_switch: Runtime resume a switch |
487 | * @handle_event: Handle thunderbolt event |
488 | * @get_boot_acl: Get boot ACL list |
489 | * @set_boot_acl: Set boot ACL list |
490 | * @disapprove_switch: Disapprove switch (disconnect PCIe tunnel) |
491 | * @approve_switch: Approve switch |
492 | * @add_switch_key: Add key to switch |
493 | * @challenge_switch_key: Challenge switch using key |
494 | * @disconnect_pcie_paths: Disconnects PCIe paths before NVM update |
495 | * @approve_xdomain_paths: Approve (establish) XDomain DMA paths |
496 | * @disconnect_xdomain_paths: Disconnect XDomain DMA paths |
497 | * @usb4_switch_op: Optional proxy for USB4 router operations. If set |
498 | * this will be called whenever USB4 router operation is |
499 | * performed. If this returns %-EOPNOTSUPP then the |
500 | * native USB4 router operation is called. |
501 | * @usb4_switch_nvm_authenticate_status: Optional callback that the CM |
502 | * implementation can be used to |
503 | * return status of USB4 NVM_AUTH |
504 | * router operation. |
505 | */ |
506 | struct tb_cm_ops { |
507 | int (*driver_ready)(struct tb *tb); |
508 | int (*start)(struct tb *tb, bool reset); |
509 | void (*stop)(struct tb *tb); |
510 | void (*deinit)(struct tb *tb); |
511 | int (*suspend_noirq)(struct tb *tb); |
512 | int (*resume_noirq)(struct tb *tb); |
513 | int (*suspend)(struct tb *tb); |
514 | int (*freeze_noirq)(struct tb *tb); |
515 | int (*thaw_noirq)(struct tb *tb); |
516 | void (*complete)(struct tb *tb); |
517 | int (*runtime_suspend)(struct tb *tb); |
518 | int (*runtime_resume)(struct tb *tb); |
519 | int (*runtime_suspend_switch)(struct tb_switch *sw); |
520 | int (*runtime_resume_switch)(struct tb_switch *sw); |
521 | void (*handle_event)(struct tb *tb, enum tb_cfg_pkg_type, |
522 | const void *buf, size_t size); |
523 | int (*get_boot_acl)(struct tb *tb, uuid_t *uuids, size_t nuuids); |
524 | int (*set_boot_acl)(struct tb *tb, const uuid_t *uuids, size_t nuuids); |
525 | int (*disapprove_switch)(struct tb *tb, struct tb_switch *sw); |
526 | int (*approve_switch)(struct tb *tb, struct tb_switch *sw); |
527 | int (*add_switch_key)(struct tb *tb, struct tb_switch *sw); |
528 | int (*challenge_switch_key)(struct tb *tb, struct tb_switch *sw, |
529 | const u8 *challenge, u8 *response); |
530 | int (*disconnect_pcie_paths)(struct tb *tb); |
531 | int (*approve_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd, |
532 | int transmit_path, int transmit_ring, |
533 | int receive_path, int receive_ring); |
534 | int (*disconnect_xdomain_paths)(struct tb *tb, struct tb_xdomain *xd, |
535 | int transmit_path, int transmit_ring, |
536 | int receive_path, int receive_ring); |
537 | int (*usb4_switch_op)(struct tb_switch *sw, u16 opcode, u32 *metadata, |
538 | u8 *status, const void *tx_data, size_t tx_data_len, |
539 | void *rx_data, size_t rx_data_len); |
540 | int (*usb4_switch_nvm_authenticate_status)(struct tb_switch *sw, |
541 | u32 *status); |
542 | }; |
543 | |
544 | static inline void *tb_priv(struct tb *tb) |
545 | { |
546 | return (void *)tb->privdata; |
547 | } |
548 | |
549 | #define TB_AUTOSUSPEND_DELAY 15000 /* ms */ |
550 | |
551 | /* helper functions & macros */ |
552 | |
553 | /** |
554 | * tb_upstream_port() - return the upstream port of a switch |
555 | * |
556 | * Every switch has an upstream port (for the root switch it is the NHI). |
557 | * |
558 | * During switch alloc/init tb_upstream_port()->remote may be NULL, even for |
559 | * non root switches (on the NHI port remote is always NULL). |
560 | * |
561 | * Return: Returns the upstream port of the switch. |
562 | */ |
563 | static inline struct tb_port *tb_upstream_port(struct tb_switch *sw) |
564 | { |
565 | return &sw->ports[sw->config.upstream_port_number]; |
566 | } |
567 | |
568 | /** |
569 | * tb_is_upstream_port() - Is the port upstream facing |
570 | * @port: Port to check |
571 | * |
572 | * Returns true if @port is upstream facing port. In case of dual link |
573 | * ports both return true. |
574 | */ |
575 | static inline bool tb_is_upstream_port(const struct tb_port *port) |
576 | { |
577 | const struct tb_port *upstream_port = tb_upstream_port(sw: port->sw); |
578 | return port == upstream_port || port->dual_link_port == upstream_port; |
579 | } |
580 | |
581 | static inline u64 tb_route(const struct tb_switch *sw) |
582 | { |
583 | return ((u64) sw->config.route_hi) << 32 | sw->config.route_lo; |
584 | } |
585 | |
586 | static inline struct tb_port *tb_port_at(u64 route, struct tb_switch *sw) |
587 | { |
588 | u8 port; |
589 | |
590 | port = route >> (sw->config.depth * 8); |
591 | if (WARN_ON(port > sw->config.max_port_number)) |
592 | return NULL; |
593 | return &sw->ports[port]; |
594 | } |
595 | |
596 | static inline const char *tb_width_name(enum tb_link_width width) |
597 | { |
598 | switch (width) { |
599 | case TB_LINK_WIDTH_SINGLE: |
600 | return "symmetric, single lane"; |
601 | case TB_LINK_WIDTH_DUAL: |
602 | return "symmetric, dual lanes"; |
603 | case TB_LINK_WIDTH_ASYM_TX: |
604 | return "asymmetric, 3 transmitters, 1 receiver"; |
605 | case TB_LINK_WIDTH_ASYM_RX: |
606 | return "asymmetric, 3 receivers, 1 transmitter"; |
607 | default: |
608 | return "unknown"; |
609 | } |
610 | } |
611 | |
612 | /** |
613 | * tb_port_has_remote() - Does the port have switch connected downstream |
614 | * @port: Port to check |
615 | * |
616 | * Returns true only when the port is primary port and has remote set. |
617 | */ |
618 | static inline bool tb_port_has_remote(const struct tb_port *port) |
619 | { |
620 | if (tb_is_upstream_port(port)) |
621 | return false; |
622 | if (!port->remote) |
623 | return false; |
624 | if (port->dual_link_port && port->link_nr) |
625 | return false; |
626 | |
627 | return true; |
628 | } |
629 | |
630 | static inline bool tb_port_is_null(const struct tb_port *port) |
631 | { |
632 | return port && port->port && port->config.type == TB_TYPE_PORT; |
633 | } |
634 | |
635 | static inline bool tb_port_is_nhi(const struct tb_port *port) |
636 | { |
637 | return port && port->config.type == TB_TYPE_NHI; |
638 | } |
639 | |
640 | static inline bool tb_port_is_pcie_down(const struct tb_port *port) |
641 | { |
642 | return port && port->config.type == TB_TYPE_PCIE_DOWN; |
643 | } |
644 | |
645 | static inline bool tb_port_is_pcie_up(const struct tb_port *port) |
646 | { |
647 | return port && port->config.type == TB_TYPE_PCIE_UP; |
648 | } |
649 | |
650 | static inline bool tb_port_is_dpin(const struct tb_port *port) |
651 | { |
652 | return port && port->config.type == TB_TYPE_DP_HDMI_IN; |
653 | } |
654 | |
655 | static inline bool tb_port_is_dpout(const struct tb_port *port) |
656 | { |
657 | return port && port->config.type == TB_TYPE_DP_HDMI_OUT; |
658 | } |
659 | |
660 | static inline bool tb_port_is_usb3_down(const struct tb_port *port) |
661 | { |
662 | return port && port->config.type == TB_TYPE_USB3_DOWN; |
663 | } |
664 | |
665 | static inline bool tb_port_is_usb3_up(const struct tb_port *port) |
666 | { |
667 | return port && port->config.type == TB_TYPE_USB3_UP; |
668 | } |
669 | |
670 | static inline int tb_sw_read(struct tb_switch *sw, void *buffer, |
671 | enum tb_cfg_space space, u32 offset, u32 length) |
672 | { |
673 | if (sw->is_unplugged) |
674 | return -ENODEV; |
675 | return tb_cfg_read(ctl: sw->tb->ctl, |
676 | buffer, |
677 | route: tb_route(sw), |
678 | port: 0, |
679 | space, |
680 | offset, |
681 | length); |
682 | } |
683 | |
684 | static inline int tb_sw_write(struct tb_switch *sw, const void *buffer, |
685 | enum tb_cfg_space space, u32 offset, u32 length) |
686 | { |
687 | if (sw->is_unplugged) |
688 | return -ENODEV; |
689 | return tb_cfg_write(ctl: sw->tb->ctl, |
690 | buffer, |
691 | route: tb_route(sw), |
692 | port: 0, |
693 | space, |
694 | offset, |
695 | length); |
696 | } |
697 | |
698 | static inline int tb_port_read(struct tb_port *port, void *buffer, |
699 | enum tb_cfg_space space, u32 offset, u32 length) |
700 | { |
701 | if (port->sw->is_unplugged) |
702 | return -ENODEV; |
703 | return tb_cfg_read(ctl: port->sw->tb->ctl, |
704 | buffer, |
705 | route: tb_route(sw: port->sw), |
706 | port: port->port, |
707 | space, |
708 | offset, |
709 | length); |
710 | } |
711 | |
712 | static inline int tb_port_write(struct tb_port *port, const void *buffer, |
713 | enum tb_cfg_space space, u32 offset, u32 length) |
714 | { |
715 | if (port->sw->is_unplugged) |
716 | return -ENODEV; |
717 | return tb_cfg_write(ctl: port->sw->tb->ctl, |
718 | buffer, |
719 | route: tb_route(sw: port->sw), |
720 | port: port->port, |
721 | space, |
722 | offset, |
723 | length); |
724 | } |
725 | |
726 | #define tb_err(tb, fmt, arg...) dev_err(&(tb)->nhi->pdev->dev, fmt, ## arg) |
727 | #define tb_WARN(tb, fmt, arg...) dev_WARN(&(tb)->nhi->pdev->dev, fmt, ## arg) |
728 | #define tb_warn(tb, fmt, arg...) dev_warn(&(tb)->nhi->pdev->dev, fmt, ## arg) |
729 | #define tb_info(tb, fmt, arg...) dev_info(&(tb)->nhi->pdev->dev, fmt, ## arg) |
730 | #define tb_dbg(tb, fmt, arg...) dev_dbg(&(tb)->nhi->pdev->dev, fmt, ## arg) |
731 | |
732 | #define __TB_SW_PRINT(level, sw, fmt, arg...) \ |
733 | do { \ |
734 | const struct tb_switch *__sw = (sw); \ |
735 | level(__sw->tb, "%llx: " fmt, \ |
736 | tb_route(__sw), ## arg); \ |
737 | } while (0) |
738 | #define tb_sw_WARN(sw, fmt, arg...) __TB_SW_PRINT(tb_WARN, sw, fmt, ##arg) |
739 | #define tb_sw_warn(sw, fmt, arg...) __TB_SW_PRINT(tb_warn, sw, fmt, ##arg) |
740 | #define tb_sw_info(sw, fmt, arg...) __TB_SW_PRINT(tb_info, sw, fmt, ##arg) |
741 | #define tb_sw_dbg(sw, fmt, arg...) __TB_SW_PRINT(tb_dbg, sw, fmt, ##arg) |
742 | |
743 | #define __TB_PORT_PRINT(level, _port, fmt, arg...) \ |
744 | do { \ |
745 | const struct tb_port *__port = (_port); \ |
746 | level(__port->sw->tb, "%llx:%u: " fmt, \ |
747 | tb_route(__port->sw), __port->port, ## arg); \ |
748 | } while (0) |
749 | #define tb_port_WARN(port, fmt, arg...) \ |
750 | __TB_PORT_PRINT(tb_WARN, port, fmt, ##arg) |
751 | #define tb_port_warn(port, fmt, arg...) \ |
752 | __TB_PORT_PRINT(tb_warn, port, fmt, ##arg) |
753 | #define tb_port_info(port, fmt, arg...) \ |
754 | __TB_PORT_PRINT(tb_info, port, fmt, ##arg) |
755 | #define tb_port_dbg(port, fmt, arg...) \ |
756 | __TB_PORT_PRINT(tb_dbg, port, fmt, ##arg) |
757 | |
758 | struct tb *icm_probe(struct tb_nhi *nhi); |
759 | struct tb *tb_probe(struct tb_nhi *nhi); |
760 | |
761 | extern const struct device_type tb_domain_type; |
762 | extern const struct device_type tb_retimer_type; |
763 | extern const struct device_type tb_switch_type; |
764 | extern const struct device_type usb4_port_device_type; |
765 | |
766 | int tb_domain_init(void); |
767 | void tb_domain_exit(void); |
768 | int tb_xdomain_init(void); |
769 | void tb_xdomain_exit(void); |
770 | |
771 | struct tb *tb_domain_alloc(struct tb_nhi *nhi, int timeout_msec, size_t privsize); |
772 | int tb_domain_add(struct tb *tb, bool reset); |
773 | void tb_domain_remove(struct tb *tb); |
774 | int tb_domain_suspend_noirq(struct tb *tb); |
775 | int tb_domain_resume_noirq(struct tb *tb); |
776 | int tb_domain_suspend(struct tb *tb); |
777 | int tb_domain_freeze_noirq(struct tb *tb); |
778 | int tb_domain_thaw_noirq(struct tb *tb); |
779 | void tb_domain_complete(struct tb *tb); |
780 | int tb_domain_runtime_suspend(struct tb *tb); |
781 | int tb_domain_runtime_resume(struct tb *tb); |
782 | int tb_domain_disapprove_switch(struct tb *tb, struct tb_switch *sw); |
783 | int tb_domain_approve_switch(struct tb *tb, struct tb_switch *sw); |
784 | int tb_domain_approve_switch_key(struct tb *tb, struct tb_switch *sw); |
785 | int tb_domain_challenge_switch_key(struct tb *tb, struct tb_switch *sw); |
786 | int tb_domain_disconnect_pcie_paths(struct tb *tb); |
787 | int tb_domain_approve_xdomain_paths(struct tb *tb, struct tb_xdomain *xd, |
788 | int transmit_path, int transmit_ring, |
789 | int receive_path, int receive_ring); |
790 | int tb_domain_disconnect_xdomain_paths(struct tb *tb, struct tb_xdomain *xd, |
791 | int transmit_path, int transmit_ring, |
792 | int receive_path, int receive_ring); |
793 | int tb_domain_disconnect_all_paths(struct tb *tb); |
794 | |
795 | static inline struct tb *tb_domain_get(struct tb *tb) |
796 | { |
797 | if (tb) |
798 | get_device(dev: &tb->dev); |
799 | return tb; |
800 | } |
801 | |
802 | static inline void tb_domain_put(struct tb *tb) |
803 | { |
804 | put_device(dev: &tb->dev); |
805 | } |
806 | |
807 | /** |
808 | * tb_domain_event() - Notify userspace about an event in domain |
809 | * @tb: Domain where event occurred |
810 | * @envp: Array of uevent environment strings (can be %NULL) |
811 | * |
812 | * This function provides a way to notify userspace about any events |
813 | * that take place in the domain. |
814 | */ |
815 | static inline void tb_domain_event(struct tb *tb, char *envp[]) |
816 | { |
817 | kobject_uevent_env(kobj: &tb->dev.kobj, action: KOBJ_CHANGE, envp); |
818 | } |
819 | |
820 | struct tb_nvm *tb_nvm_alloc(struct device *dev); |
821 | int tb_nvm_read_version(struct tb_nvm *nvm); |
822 | int tb_nvm_validate(struct tb_nvm *nvm); |
823 | int tb_nvm_write_headers(struct tb_nvm *nvm); |
824 | int tb_nvm_add_active(struct tb_nvm *nvm, nvmem_reg_read_t reg_read); |
825 | int tb_nvm_write_buf(struct tb_nvm *nvm, unsigned int offset, void *val, |
826 | size_t bytes); |
827 | int tb_nvm_add_non_active(struct tb_nvm *nvm, nvmem_reg_write_t reg_write); |
828 | void tb_nvm_free(struct tb_nvm *nvm); |
829 | void tb_nvm_exit(void); |
830 | |
831 | typedef int (*read_block_fn)(void *, unsigned int, void *, size_t); |
832 | typedef int (*write_block_fn)(void *, unsigned int, const void *, size_t); |
833 | |
834 | int tb_nvm_read_data(unsigned int address, void *buf, size_t size, |
835 | unsigned int retries, read_block_fn read_block, |
836 | void *read_block_data); |
837 | int tb_nvm_write_data(unsigned int address, const void *buf, size_t size, |
838 | unsigned int retries, write_block_fn write_next_block, |
839 | void *write_block_data); |
840 | |
841 | int tb_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf, |
842 | size_t size); |
843 | struct tb_switch *tb_switch_alloc(struct tb *tb, struct device *parent, |
844 | u64 route); |
845 | struct tb_switch *tb_switch_alloc_safe_mode(struct tb *tb, |
846 | struct device *parent, u64 route); |
847 | int tb_switch_configure(struct tb_switch *sw); |
848 | int tb_switch_configuration_valid(struct tb_switch *sw); |
849 | int tb_switch_add(struct tb_switch *sw); |
850 | void tb_switch_remove(struct tb_switch *sw); |
851 | void tb_switch_suspend(struct tb_switch *sw, bool runtime); |
852 | int tb_switch_resume(struct tb_switch *sw, bool runtime); |
853 | int tb_switch_reset(struct tb_switch *sw); |
854 | int tb_switch_wait_for_bit(struct tb_switch *sw, u32 offset, u32 bit, |
855 | u32 value, int timeout_msec); |
856 | void tb_sw_set_unplugged(struct tb_switch *sw); |
857 | struct tb_port *tb_switch_find_port(struct tb_switch *sw, |
858 | enum tb_port_type type); |
859 | struct tb_switch *tb_switch_find_by_link_depth(struct tb *tb, u8 link, |
860 | u8 depth); |
861 | struct tb_switch *tb_switch_find_by_uuid(struct tb *tb, const uuid_t *uuid); |
862 | struct tb_switch *tb_switch_find_by_route(struct tb *tb, u64 route); |
863 | |
864 | /** |
865 | * tb_switch_for_each_port() - Iterate over each switch port |
866 | * @sw: Switch whose ports to iterate |
867 | * @p: Port used as iterator |
868 | * |
869 | * Iterates over each switch port skipping the control port (port %0). |
870 | */ |
871 | #define tb_switch_for_each_port(sw, p) \ |
872 | for ((p) = &(sw)->ports[1]; \ |
873 | (p) <= &(sw)->ports[(sw)->config.max_port_number]; (p)++) |
874 | |
875 | static inline struct tb_switch *tb_switch_get(struct tb_switch *sw) |
876 | { |
877 | if (sw) |
878 | get_device(dev: &sw->dev); |
879 | return sw; |
880 | } |
881 | |
882 | static inline void tb_switch_put(struct tb_switch *sw) |
883 | { |
884 | put_device(dev: &sw->dev); |
885 | } |
886 | |
887 | static inline bool tb_is_switch(const struct device *dev) |
888 | { |
889 | return dev->type == &tb_switch_type; |
890 | } |
891 | |
892 | static inline struct tb_switch *tb_to_switch(const struct device *dev) |
893 | { |
894 | if (tb_is_switch(dev)) |
895 | return container_of(dev, struct tb_switch, dev); |
896 | return NULL; |
897 | } |
898 | |
899 | static inline struct tb_switch *tb_switch_parent(struct tb_switch *sw) |
900 | { |
901 | return tb_to_switch(dev: sw->dev.parent); |
902 | } |
903 | |
904 | /** |
905 | * tb_switch_downstream_port() - Return downstream facing port of parent router |
906 | * @sw: Device router pointer |
907 | * |
908 | * Only call for device routers. Returns the downstream facing port of |
909 | * the parent router. |
910 | */ |
911 | static inline struct tb_port *tb_switch_downstream_port(struct tb_switch *sw) |
912 | { |
913 | if (WARN_ON(!tb_route(sw))) |
914 | return NULL; |
915 | return tb_port_at(route: tb_route(sw), sw: tb_switch_parent(sw)); |
916 | } |
917 | |
918 | /** |
919 | * tb_switch_depth() - Returns depth of the connected router |
920 | * @sw: Router |
921 | */ |
922 | static inline int tb_switch_depth(const struct tb_switch *sw) |
923 | { |
924 | return sw->config.depth; |
925 | } |
926 | |
927 | static inline bool tb_switch_is_light_ridge(const struct tb_switch *sw) |
928 | { |
929 | return sw->config.vendor_id == PCI_VENDOR_ID_INTEL && |
930 | sw->config.device_id == PCI_DEVICE_ID_INTEL_LIGHT_RIDGE; |
931 | } |
932 | |
933 | static inline bool tb_switch_is_eagle_ridge(const struct tb_switch *sw) |
934 | { |
935 | return sw->config.vendor_id == PCI_VENDOR_ID_INTEL && |
936 | sw->config.device_id == PCI_DEVICE_ID_INTEL_EAGLE_RIDGE; |
937 | } |
938 | |
939 | static inline bool tb_switch_is_cactus_ridge(const struct tb_switch *sw) |
940 | { |
941 | if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
942 | switch (sw->config.device_id) { |
943 | case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_2C: |
944 | case PCI_DEVICE_ID_INTEL_CACTUS_RIDGE_4C: |
945 | return true; |
946 | } |
947 | } |
948 | return false; |
949 | } |
950 | |
951 | static inline bool tb_switch_is_falcon_ridge(const struct tb_switch *sw) |
952 | { |
953 | if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
954 | switch (sw->config.device_id) { |
955 | case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_2C_BRIDGE: |
956 | case PCI_DEVICE_ID_INTEL_FALCON_RIDGE_4C_BRIDGE: |
957 | return true; |
958 | } |
959 | } |
960 | return false; |
961 | } |
962 | |
963 | static inline bool tb_switch_is_alpine_ridge(const struct tb_switch *sw) |
964 | { |
965 | if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
966 | switch (sw->config.device_id) { |
967 | case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_BRIDGE: |
968 | case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_BRIDGE: |
969 | case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_BRIDGE: |
970 | case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_4C_BRIDGE: |
971 | case PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_C_2C_BRIDGE: |
972 | return true; |
973 | } |
974 | } |
975 | return false; |
976 | } |
977 | |
978 | static inline bool tb_switch_is_titan_ridge(const struct tb_switch *sw) |
979 | { |
980 | if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
981 | switch (sw->config.device_id) { |
982 | case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_BRIDGE: |
983 | case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_BRIDGE: |
984 | case PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_BRIDGE: |
985 | return true; |
986 | } |
987 | } |
988 | return false; |
989 | } |
990 | |
991 | static inline bool tb_switch_is_tiger_lake(const struct tb_switch *sw) |
992 | { |
993 | if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { |
994 | switch (sw->config.device_id) { |
995 | case PCI_DEVICE_ID_INTEL_TGL_NHI0: |
996 | case PCI_DEVICE_ID_INTEL_TGL_NHI1: |
997 | case PCI_DEVICE_ID_INTEL_TGL_H_NHI0: |
998 | case PCI_DEVICE_ID_INTEL_TGL_H_NHI1: |
999 | return true; |
1000 | } |
1001 | } |
1002 | return false; |
1003 | } |
1004 | |
1005 | /** |
1006 | * tb_switch_is_icm() - Is the switch handled by ICM firmware |
1007 | * @sw: Switch to check |
1008 | * |
1009 | * In case there is a need to differentiate whether ICM firmware or SW CM |
1010 | * is handling @sw this function can be called. It is valid to call this |
1011 | * after tb_switch_alloc() and tb_switch_configure() has been called |
1012 | * (latter only for SW CM case). |
1013 | */ |
1014 | static inline bool tb_switch_is_icm(const struct tb_switch *sw) |
1015 | { |
1016 | return !sw->config.enabled; |
1017 | } |
1018 | |
1019 | int tb_switch_set_link_width(struct tb_switch *sw, enum tb_link_width width); |
1020 | int tb_switch_configure_link(struct tb_switch *sw); |
1021 | void tb_switch_unconfigure_link(struct tb_switch *sw); |
1022 | |
1023 | bool tb_switch_query_dp_resource(struct tb_switch *sw, struct tb_port *in); |
1024 | int tb_switch_alloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
1025 | void tb_switch_dealloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
1026 | |
1027 | int tb_switch_tmu_init(struct tb_switch *sw); |
1028 | int tb_switch_tmu_post_time(struct tb_switch *sw); |
1029 | int tb_switch_tmu_disable(struct tb_switch *sw); |
1030 | int tb_switch_tmu_enable(struct tb_switch *sw); |
1031 | int tb_switch_tmu_configure(struct tb_switch *sw, enum tb_switch_tmu_mode mode); |
1032 | |
1033 | /** |
1034 | * tb_switch_tmu_is_configured() - Is given TMU mode configured |
1035 | * @sw: Router whose mode to check |
1036 | * @mode: Mode to check |
1037 | * |
1038 | * Checks if given router TMU mode is configured to @mode. Note the |
1039 | * router TMU might not be enabled to this mode. |
1040 | */ |
1041 | static inline bool tb_switch_tmu_is_configured(const struct tb_switch *sw, |
1042 | enum tb_switch_tmu_mode mode) |
1043 | { |
1044 | return sw->tmu.mode_request == mode; |
1045 | } |
1046 | |
1047 | /** |
1048 | * tb_switch_tmu_is_enabled() - Checks if the specified TMU mode is enabled |
1049 | * @sw: Router whose TMU mode to check |
1050 | * |
1051 | * Return true if hardware TMU configuration matches the requested |
1052 | * configuration (and is not %TB_SWITCH_TMU_MODE_OFF). |
1053 | */ |
1054 | static inline bool tb_switch_tmu_is_enabled(const struct tb_switch *sw) |
1055 | { |
1056 | return sw->tmu.mode != TB_SWITCH_TMU_MODE_OFF && |
1057 | sw->tmu.mode == sw->tmu.mode_request; |
1058 | } |
1059 | |
1060 | bool tb_port_clx_is_enabled(struct tb_port *port, unsigned int clx); |
1061 | |
1062 | int tb_switch_clx_init(struct tb_switch *sw); |
1063 | int tb_switch_clx_enable(struct tb_switch *sw, unsigned int clx); |
1064 | int tb_switch_clx_disable(struct tb_switch *sw); |
1065 | |
1066 | /** |
1067 | * tb_switch_clx_is_enabled() - Checks if the CLx is enabled |
1068 | * @sw: Router to check for the CLx |
1069 | * @clx: The CLx states to check for |
1070 | * |
1071 | * Checks if the specified CLx is enabled on the router upstream link. |
1072 | * Returns true if any of the given states is enabled. |
1073 | * |
1074 | * Not applicable for a host router. |
1075 | */ |
1076 | static inline bool tb_switch_clx_is_enabled(const struct tb_switch *sw, |
1077 | unsigned int clx) |
1078 | { |
1079 | return sw->clx & clx; |
1080 | } |
1081 | |
1082 | int tb_switch_pcie_l1_enable(struct tb_switch *sw); |
1083 | |
1084 | int tb_switch_xhci_connect(struct tb_switch *sw); |
1085 | void tb_switch_xhci_disconnect(struct tb_switch *sw); |
1086 | |
1087 | int tb_port_state(struct tb_port *port); |
1088 | int tb_wait_for_port(struct tb_port *port, bool wait_if_unplugged); |
1089 | int tb_port_add_nfc_credits(struct tb_port *port, int credits); |
1090 | int tb_port_clear_counter(struct tb_port *port, int counter); |
1091 | int tb_port_unlock(struct tb_port *port); |
1092 | int tb_port_enable(struct tb_port *port); |
1093 | int tb_port_disable(struct tb_port *port); |
1094 | int tb_port_alloc_in_hopid(struct tb_port *port, int hopid, int max_hopid); |
1095 | void tb_port_release_in_hopid(struct tb_port *port, int hopid); |
1096 | int tb_port_alloc_out_hopid(struct tb_port *port, int hopid, int max_hopid); |
1097 | void tb_port_release_out_hopid(struct tb_port *port, int hopid); |
1098 | struct tb_port *tb_next_port_on_path(struct tb_port *start, struct tb_port *end, |
1099 | struct tb_port *prev); |
1100 | |
1101 | /** |
1102 | * tb_port_path_direction_downstream() - Checks if path directed downstream |
1103 | * @src: Source adapter |
1104 | * @dst: Destination adapter |
1105 | * |
1106 | * Returns %true only if the specified path from source adapter (@src) |
1107 | * to destination adapter (@dst) is directed downstream. |
1108 | */ |
1109 | static inline bool |
1110 | tb_port_path_direction_downstream(const struct tb_port *src, |
1111 | const struct tb_port *dst) |
1112 | { |
1113 | return src->sw->config.depth < dst->sw->config.depth; |
1114 | } |
1115 | |
1116 | static inline bool tb_port_use_credit_allocation(const struct tb_port *port) |
1117 | { |
1118 | return tb_port_is_null(port) && port->sw->credit_allocation; |
1119 | } |
1120 | |
1121 | /** |
1122 | * tb_for_each_port_on_path() - Iterate over each port on path |
1123 | * @src: Source port |
1124 | * @dst: Destination port |
1125 | * @p: Port used as iterator |
1126 | * |
1127 | * Walks over each port on path from @src to @dst. |
1128 | */ |
1129 | #define tb_for_each_port_on_path(src, dst, p) \ |
1130 | for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ |
1131 | (p) = tb_next_port_on_path((src), (dst), (p))) |
1132 | |
1133 | /** |
1134 | * tb_for_each_upstream_port_on_path() - Iterate over each upstreamm port on path |
1135 | * @src: Source port |
1136 | * @dst: Destination port |
1137 | * @p: Port used as iterator |
1138 | * |
1139 | * Walks over each upstream lane adapter on path from @src to @dst. |
1140 | */ |
1141 | #define tb_for_each_upstream_port_on_path(src, dst, p) \ |
1142 | for ((p) = tb_next_port_on_path((src), (dst), NULL); (p); \ |
1143 | (p) = tb_next_port_on_path((src), (dst), (p))) \ |
1144 | if (!tb_port_is_null((p)) || !tb_is_upstream_port((p))) {\ |
1145 | continue; \ |
1146 | } else |
1147 | |
1148 | int tb_port_get_link_speed(struct tb_port *port); |
1149 | int tb_port_get_link_generation(struct tb_port *port); |
1150 | int tb_port_get_link_width(struct tb_port *port); |
1151 | bool tb_port_width_supported(struct tb_port *port, unsigned int width); |
1152 | int tb_port_set_link_width(struct tb_port *port, enum tb_link_width width); |
1153 | int tb_port_lane_bonding_enable(struct tb_port *port); |
1154 | void tb_port_lane_bonding_disable(struct tb_port *port); |
1155 | int tb_port_wait_for_link_width(struct tb_port *port, unsigned int width, |
1156 | int timeout_msec); |
1157 | int tb_port_update_credits(struct tb_port *port); |
1158 | |
1159 | int tb_switch_find_vse_cap(struct tb_switch *sw, enum tb_switch_vse_cap vsec); |
1160 | int tb_switch_find_cap(struct tb_switch *sw, enum tb_switch_cap cap); |
1161 | int tb_switch_next_cap(struct tb_switch *sw, unsigned int offset); |
1162 | int tb_port_find_cap(struct tb_port *port, enum tb_port_cap cap); |
1163 | int tb_port_next_cap(struct tb_port *port, unsigned int offset); |
1164 | bool tb_port_is_enabled(struct tb_port *port); |
1165 | |
1166 | bool tb_usb3_port_is_enabled(struct tb_port *port); |
1167 | int tb_usb3_port_enable(struct tb_port *port, bool enable); |
1168 | |
1169 | bool tb_pci_port_is_enabled(struct tb_port *port); |
1170 | int tb_pci_port_enable(struct tb_port *port, bool enable); |
1171 | |
1172 | int tb_dp_port_hpd_is_active(struct tb_port *port); |
1173 | int tb_dp_port_hpd_clear(struct tb_port *port); |
1174 | int tb_dp_port_set_hops(struct tb_port *port, unsigned int video, |
1175 | unsigned int aux_tx, unsigned int aux_rx); |
1176 | bool tb_dp_port_is_enabled(struct tb_port *port); |
1177 | int tb_dp_port_enable(struct tb_port *port, bool enable); |
1178 | |
1179 | struct tb_path *tb_path_discover(struct tb_port *src, int src_hopid, |
1180 | struct tb_port *dst, int dst_hopid, |
1181 | struct tb_port **last, const char *name, |
1182 | bool alloc_hopid); |
1183 | struct tb_path *tb_path_alloc(struct tb *tb, struct tb_port *src, int src_hopid, |
1184 | struct tb_port *dst, int dst_hopid, int link_nr, |
1185 | const char *name); |
1186 | void tb_path_free(struct tb_path *path); |
1187 | int tb_path_activate(struct tb_path *path); |
1188 | void tb_path_deactivate(struct tb_path *path); |
1189 | int tb_path_deactivate_hop(struct tb_port *port, int hop_index); |
1190 | bool tb_path_is_invalid(struct tb_path *path); |
1191 | bool tb_path_port_on_path(const struct tb_path *path, |
1192 | const struct tb_port *port); |
1193 | |
1194 | /** |
1195 | * tb_path_for_each_hop() - Iterate over each hop on path |
1196 | * @path: Path whose hops to iterate |
1197 | * @hop: Hop used as iterator |
1198 | * |
1199 | * Iterates over each hop on path. |
1200 | */ |
1201 | #define tb_path_for_each_hop(path, hop) \ |
1202 | for ((hop) = &(path)->hops[0]; \ |
1203 | (hop) <= &(path)->hops[(path)->path_length - 1]; (hop)++) |
1204 | |
1205 | int tb_drom_read(struct tb_switch *sw); |
1206 | int tb_drom_read_uid_only(struct tb_switch *sw, u64 *uid); |
1207 | |
1208 | int tb_lc_read_uuid(struct tb_switch *sw, u32 *uuid); |
1209 | int tb_lc_reset_port(struct tb_port *port); |
1210 | int tb_lc_configure_port(struct tb_port *port); |
1211 | void tb_lc_unconfigure_port(struct tb_port *port); |
1212 | int tb_lc_configure_xdomain(struct tb_port *port); |
1213 | void tb_lc_unconfigure_xdomain(struct tb_port *port); |
1214 | int tb_lc_start_lane_initialization(struct tb_port *port); |
1215 | bool tb_lc_is_clx_supported(struct tb_port *port); |
1216 | bool tb_lc_is_usb_plugged(struct tb_port *port); |
1217 | bool tb_lc_is_xhci_connected(struct tb_port *port); |
1218 | int tb_lc_xhci_connect(struct tb_port *port); |
1219 | void tb_lc_xhci_disconnect(struct tb_port *port); |
1220 | int tb_lc_set_wake(struct tb_switch *sw, unsigned int flags); |
1221 | int tb_lc_set_sleep(struct tb_switch *sw); |
1222 | bool tb_lc_lane_bonding_possible(struct tb_switch *sw); |
1223 | bool tb_lc_dp_sink_query(struct tb_switch *sw, struct tb_port *in); |
1224 | int tb_lc_dp_sink_alloc(struct tb_switch *sw, struct tb_port *in); |
1225 | int tb_lc_dp_sink_dealloc(struct tb_switch *sw, struct tb_port *in); |
1226 | int tb_lc_force_power(struct tb_switch *sw); |
1227 | |
1228 | static inline int tb_route_length(u64 route) |
1229 | { |
1230 | return (fls64(x: route) + TB_ROUTE_SHIFT - 1) / TB_ROUTE_SHIFT; |
1231 | } |
1232 | |
1233 | /** |
1234 | * tb_downstream_route() - get route to downstream switch |
1235 | * |
1236 | * Port must not be the upstream port (otherwise a loop is created). |
1237 | * |
1238 | * Return: Returns a route to the switch behind @port. |
1239 | */ |
1240 | static inline u64 tb_downstream_route(struct tb_port *port) |
1241 | { |
1242 | return tb_route(sw: port->sw) |
1243 | | ((u64) port->port << (port->sw->config.depth * 8)); |
1244 | } |
1245 | |
1246 | bool tb_is_xdomain_enabled(void); |
1247 | bool tb_xdomain_handle_request(struct tb *tb, enum tb_cfg_pkg_type type, |
1248 | const void *buf, size_t size); |
1249 | struct tb_xdomain *tb_xdomain_alloc(struct tb *tb, struct device *parent, |
1250 | u64 route, const uuid_t *local_uuid, |
1251 | const uuid_t *remote_uuid); |
1252 | void tb_xdomain_add(struct tb_xdomain *xd); |
1253 | void tb_xdomain_remove(struct tb_xdomain *xd); |
1254 | struct tb_xdomain *tb_xdomain_find_by_link_depth(struct tb *tb, u8 link, |
1255 | u8 depth); |
1256 | |
1257 | static inline struct tb_switch *tb_xdomain_parent(struct tb_xdomain *xd) |
1258 | { |
1259 | return tb_to_switch(dev: xd->dev.parent); |
1260 | } |
1261 | |
1262 | /** |
1263 | * tb_xdomain_downstream_port() - Return downstream facing port of parent router |
1264 | * @xd: Xdomain pointer |
1265 | * |
1266 | * Returns the downstream port the XDomain is connected to. |
1267 | */ |
1268 | static inline struct tb_port *tb_xdomain_downstream_port(struct tb_xdomain *xd) |
1269 | { |
1270 | return tb_port_at(route: xd->route, sw: tb_xdomain_parent(xd)); |
1271 | } |
1272 | |
1273 | int tb_retimer_nvm_read(struct tb_retimer *rt, unsigned int address, void *buf, |
1274 | size_t size); |
1275 | int tb_retimer_scan(struct tb_port *port, bool add); |
1276 | void tb_retimer_remove_all(struct tb_port *port); |
1277 | |
1278 | static inline bool tb_is_retimer(const struct device *dev) |
1279 | { |
1280 | return dev->type == &tb_retimer_type; |
1281 | } |
1282 | |
1283 | static inline struct tb_retimer *tb_to_retimer(struct device *dev) |
1284 | { |
1285 | if (tb_is_retimer(dev)) |
1286 | return container_of(dev, struct tb_retimer, dev); |
1287 | return NULL; |
1288 | } |
1289 | |
1290 | /** |
1291 | * usb4_switch_version() - Returns USB4 version of the router |
1292 | * @sw: Router to check |
1293 | * |
1294 | * Returns major version of USB4 router (%1 for v1, %2 for v2 and so |
1295 | * on). Can be called to pre-USB4 router too and in that case returns %0. |
1296 | */ |
1297 | static inline unsigned int usb4_switch_version(const struct tb_switch *sw) |
1298 | { |
1299 | return FIELD_GET(USB4_VERSION_MAJOR_MASK, sw->config.thunderbolt_version); |
1300 | } |
1301 | |
1302 | /** |
1303 | * tb_switch_is_usb4() - Is the switch USB4 compliant |
1304 | * @sw: Switch to check |
1305 | * |
1306 | * Returns true if the @sw is USB4 compliant router, false otherwise. |
1307 | */ |
1308 | static inline bool tb_switch_is_usb4(const struct tb_switch *sw) |
1309 | { |
1310 | return usb4_switch_version(sw) > 0; |
1311 | } |
1312 | |
1313 | void usb4_switch_check_wakes(struct tb_switch *sw); |
1314 | int usb4_switch_setup(struct tb_switch *sw); |
1315 | int usb4_switch_configuration_valid(struct tb_switch *sw); |
1316 | int usb4_switch_read_uid(struct tb_switch *sw, u64 *uid); |
1317 | int usb4_switch_drom_read(struct tb_switch *sw, unsigned int address, void *buf, |
1318 | size_t size); |
1319 | bool usb4_switch_lane_bonding_possible(struct tb_switch *sw); |
1320 | int usb4_switch_set_wake(struct tb_switch *sw, unsigned int flags); |
1321 | int usb4_switch_set_sleep(struct tb_switch *sw); |
1322 | int usb4_switch_nvm_sector_size(struct tb_switch *sw); |
1323 | int usb4_switch_nvm_read(struct tb_switch *sw, unsigned int address, void *buf, |
1324 | size_t size); |
1325 | int usb4_switch_nvm_set_offset(struct tb_switch *sw, unsigned int address); |
1326 | int usb4_switch_nvm_write(struct tb_switch *sw, unsigned int address, |
1327 | const void *buf, size_t size); |
1328 | int usb4_switch_nvm_authenticate(struct tb_switch *sw); |
1329 | int usb4_switch_nvm_authenticate_status(struct tb_switch *sw, u32 *status); |
1330 | int usb4_switch_credits_init(struct tb_switch *sw); |
1331 | bool usb4_switch_query_dp_resource(struct tb_switch *sw, struct tb_port *in); |
1332 | int usb4_switch_alloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
1333 | int usb4_switch_dealloc_dp_resource(struct tb_switch *sw, struct tb_port *in); |
1334 | struct tb_port *usb4_switch_map_pcie_down(struct tb_switch *sw, |
1335 | const struct tb_port *port); |
1336 | struct tb_port *usb4_switch_map_usb3_down(struct tb_switch *sw, |
1337 | const struct tb_port *port); |
1338 | int usb4_switch_add_ports(struct tb_switch *sw); |
1339 | void usb4_switch_remove_ports(struct tb_switch *sw); |
1340 | |
1341 | int usb4_port_unlock(struct tb_port *port); |
1342 | int usb4_port_hotplug_enable(struct tb_port *port); |
1343 | int usb4_port_reset(struct tb_port *port); |
1344 | int usb4_port_configure(struct tb_port *port); |
1345 | void usb4_port_unconfigure(struct tb_port *port); |
1346 | int usb4_port_configure_xdomain(struct tb_port *port, struct tb_xdomain *xd); |
1347 | void usb4_port_unconfigure_xdomain(struct tb_port *port); |
1348 | int usb4_port_router_offline(struct tb_port *port); |
1349 | int usb4_port_router_online(struct tb_port *port); |
1350 | int usb4_port_enumerate_retimers(struct tb_port *port); |
1351 | bool usb4_port_clx_supported(struct tb_port *port); |
1352 | |
1353 | bool usb4_port_asym_supported(struct tb_port *port); |
1354 | int usb4_port_asym_set_link_width(struct tb_port *port, enum tb_link_width width); |
1355 | int usb4_port_asym_start(struct tb_port *port); |
1356 | |
1357 | /** |
1358 | * enum tb_sb_target - Sideband transaction target |
1359 | * @USB4_SB_TARGET_ROUTER: Target is the router itself |
1360 | * @USB4_SB_TARGET_PARTNER: Target is partner |
1361 | * @USB4_SB_TARGET_RETIMER: Target is retimer |
1362 | */ |
1363 | enum usb4_sb_target { |
1364 | USB4_SB_TARGET_ROUTER, |
1365 | USB4_SB_TARGET_PARTNER, |
1366 | USB4_SB_TARGET_RETIMER, |
1367 | }; |
1368 | |
1369 | int usb4_port_sb_read(struct tb_port *port, enum usb4_sb_target target, u8 index, |
1370 | u8 reg, void *buf, u8 size); |
1371 | int usb4_port_sb_write(struct tb_port *port, enum usb4_sb_target target, |
1372 | u8 index, u8 reg, const void *buf, u8 size); |
1373 | |
1374 | /** |
1375 | * enum usb4_margin_sw_error_counter - Software margining error counter operation |
1376 | * @USB4_MARGIN_SW_ERROR_COUNTER_NOP: No change in counter setup |
1377 | * @USB4_MARGIN_SW_ERROR_COUNTER_CLEAR: Set the error counter to 0, enable counter |
1378 | * @USB4_MARGIN_SW_ERROR_COUNTER_START: Start counter, count from last value |
1379 | * @USB4_MARGIN_SW_ERROR_COUNTER_STOP: Stop counter, do not clear value |
1380 | */ |
1381 | enum usb4_margin_sw_error_counter { |
1382 | USB4_MARGIN_SW_ERROR_COUNTER_NOP, |
1383 | USB4_MARGIN_SW_ERROR_COUNTER_CLEAR, |
1384 | USB4_MARGIN_SW_ERROR_COUNTER_START, |
1385 | USB4_MARGIN_SW_ERROR_COUNTER_STOP, |
1386 | }; |
1387 | |
1388 | enum usb4_margining_lane { |
1389 | USB4_MARGINING_LANE_RX0 = 0, |
1390 | USB4_MARGINING_LANE_RX1 = 1, |
1391 | USB4_MARGINING_LANE_RX2 = 2, |
1392 | USB4_MARGINING_LANE_ALL = 7, |
1393 | }; |
1394 | |
1395 | /** |
1396 | * struct usb4_port_margining_params - USB4 margining parameters |
1397 | * @error_counter: Error counter operation for software margining |
1398 | * @ber_level: Current BER level contour value |
1399 | * @lanes: Lanes to enable for the margining operation |
1400 | * @voltage_time_offset: Offset for voltage / time for software margining |
1401 | * @optional_voltage_offset_range: Enable optional extended voltage range |
1402 | * @right_high: %false if left/low margin test is performed, %true if right/high |
1403 | * @time: %true if time margining is used instead of voltage |
1404 | */ |
1405 | struct usb4_port_margining_params { |
1406 | enum usb4_margin_sw_error_counter error_counter; |
1407 | u32 ber_level; |
1408 | enum usb4_margining_lane lanes; |
1409 | u32 voltage_time_offset; |
1410 | bool optional_voltage_offset_range; |
1411 | bool right_high; |
1412 | bool upper_eye; |
1413 | bool time; |
1414 | }; |
1415 | |
1416 | int usb4_port_margining_caps(struct tb_port *port, enum usb4_sb_target target, |
1417 | u8 index, u32 *caps, size_t ncaps); |
1418 | int usb4_port_hw_margin(struct tb_port *port, enum usb4_sb_target target, |
1419 | u8 index, const struct usb4_port_margining_params *params, |
1420 | u32 *results, size_t nresults); |
1421 | int usb4_port_sw_margin(struct tb_port *port, enum usb4_sb_target target, |
1422 | u8 index, const struct usb4_port_margining_params *params, |
1423 | u32 *results); |
1424 | int usb4_port_sw_margin_errors(struct tb_port *port, enum usb4_sb_target target, |
1425 | u8 index, u32 *errors); |
1426 | |
1427 | int usb4_port_retimer_set_inbound_sbtx(struct tb_port *port, u8 index); |
1428 | int usb4_port_retimer_unset_inbound_sbtx(struct tb_port *port, u8 index); |
1429 | int usb4_port_retimer_is_last(struct tb_port *port, u8 index); |
1430 | int usb4_port_retimer_is_cable(struct tb_port *port, u8 index); |
1431 | int usb4_port_retimer_nvm_sector_size(struct tb_port *port, u8 index); |
1432 | int usb4_port_retimer_nvm_set_offset(struct tb_port *port, u8 index, |
1433 | unsigned int address); |
1434 | int usb4_port_retimer_nvm_write(struct tb_port *port, u8 index, |
1435 | unsigned int address, const void *buf, |
1436 | size_t size); |
1437 | int usb4_port_retimer_nvm_authenticate(struct tb_port *port, u8 index); |
1438 | int usb4_port_retimer_nvm_authenticate_status(struct tb_port *port, u8 index, |
1439 | u32 *status); |
1440 | int usb4_port_retimer_nvm_read(struct tb_port *port, u8 index, |
1441 | unsigned int address, void *buf, size_t size); |
1442 | |
1443 | int usb4_usb3_port_max_link_rate(struct tb_port *port); |
1444 | int usb4_usb3_port_allocated_bandwidth(struct tb_port *port, int *upstream_bw, |
1445 | int *downstream_bw); |
1446 | int usb4_usb3_port_allocate_bandwidth(struct tb_port *port, int *upstream_bw, |
1447 | int *downstream_bw); |
1448 | int usb4_usb3_port_release_bandwidth(struct tb_port *port, int *upstream_bw, |
1449 | int *downstream_bw); |
1450 | |
1451 | int usb4_dp_port_set_cm_id(struct tb_port *port, int cm_id); |
1452 | bool usb4_dp_port_bandwidth_mode_supported(struct tb_port *port); |
1453 | bool usb4_dp_port_bandwidth_mode_enabled(struct tb_port *port); |
1454 | int usb4_dp_port_set_cm_bandwidth_mode_supported(struct tb_port *port, |
1455 | bool supported); |
1456 | int usb4_dp_port_group_id(struct tb_port *port); |
1457 | int usb4_dp_port_set_group_id(struct tb_port *port, int group_id); |
1458 | int usb4_dp_port_nrd(struct tb_port *port, int *rate, int *lanes); |
1459 | int usb4_dp_port_set_nrd(struct tb_port *port, int rate, int lanes); |
1460 | int usb4_dp_port_granularity(struct tb_port *port); |
1461 | int usb4_dp_port_set_granularity(struct tb_port *port, int granularity); |
1462 | int usb4_dp_port_set_estimated_bandwidth(struct tb_port *port, int bw); |
1463 | int usb4_dp_port_allocated_bandwidth(struct tb_port *port); |
1464 | int usb4_dp_port_allocate_bandwidth(struct tb_port *port, int bw); |
1465 | int usb4_dp_port_requested_bandwidth(struct tb_port *port); |
1466 | |
1467 | int usb4_pci_port_set_ext_encapsulation(struct tb_port *port, bool enable); |
1468 | |
1469 | static inline bool tb_is_usb4_port_device(const struct device *dev) |
1470 | { |
1471 | return dev->type == &usb4_port_device_type; |
1472 | } |
1473 | |
1474 | static inline struct usb4_port *tb_to_usb4_port_device(struct device *dev) |
1475 | { |
1476 | if (tb_is_usb4_port_device(dev)) |
1477 | return container_of(dev, struct usb4_port, dev); |
1478 | return NULL; |
1479 | } |
1480 | |
1481 | struct usb4_port *usb4_port_device_add(struct tb_port *port); |
1482 | void usb4_port_device_remove(struct usb4_port *usb4); |
1483 | int usb4_port_device_resume(struct usb4_port *usb4); |
1484 | int usb4_port_index(const struct tb_switch *sw, const struct tb_port *port); |
1485 | |
1486 | static inline bool usb4_port_device_is_offline(const struct usb4_port *usb4) |
1487 | { |
1488 | return usb4->offline; |
1489 | } |
1490 | |
1491 | void tb_check_quirks(struct tb_switch *sw); |
1492 | |
1493 | #ifdef CONFIG_ACPI |
1494 | bool tb_acpi_add_links(struct tb_nhi *nhi); |
1495 | |
1496 | bool tb_acpi_is_native(void); |
1497 | bool tb_acpi_may_tunnel_usb3(void); |
1498 | bool tb_acpi_may_tunnel_dp(void); |
1499 | bool tb_acpi_may_tunnel_pcie(void); |
1500 | bool tb_acpi_is_xdomain_allowed(void); |
1501 | |
1502 | int tb_acpi_init(void); |
1503 | void tb_acpi_exit(void); |
1504 | int tb_acpi_power_on_retimers(struct tb_port *port); |
1505 | int tb_acpi_power_off_retimers(struct tb_port *port); |
1506 | #else |
1507 | static inline bool tb_acpi_add_links(struct tb_nhi *nhi) { return false; } |
1508 | |
1509 | static inline bool tb_acpi_is_native(void) { return true; } |
1510 | static inline bool tb_acpi_may_tunnel_usb3(void) { return true; } |
1511 | static inline bool tb_acpi_may_tunnel_dp(void) { return true; } |
1512 | static inline bool tb_acpi_may_tunnel_pcie(void) { return true; } |
1513 | static inline bool tb_acpi_is_xdomain_allowed(void) { return true; } |
1514 | |
1515 | static inline int tb_acpi_init(void) { return 0; } |
1516 | static inline void tb_acpi_exit(void) { } |
1517 | static inline int tb_acpi_power_on_retimers(struct tb_port *port) { return 0; } |
1518 | static inline int tb_acpi_power_off_retimers(struct tb_port *port) { return 0; } |
1519 | #endif |
1520 | |
1521 | #ifdef CONFIG_DEBUG_FS |
1522 | void tb_debugfs_init(void); |
1523 | void tb_debugfs_exit(void); |
1524 | void tb_switch_debugfs_init(struct tb_switch *sw); |
1525 | void tb_switch_debugfs_remove(struct tb_switch *sw); |
1526 | void tb_xdomain_debugfs_init(struct tb_xdomain *xd); |
1527 | void tb_xdomain_debugfs_remove(struct tb_xdomain *xd); |
1528 | void tb_service_debugfs_init(struct tb_service *svc); |
1529 | void tb_service_debugfs_remove(struct tb_service *svc); |
1530 | void tb_retimer_debugfs_init(struct tb_retimer *rt); |
1531 | void tb_retimer_debugfs_remove(struct tb_retimer *rt); |
1532 | #else |
1533 | static inline void tb_debugfs_init(void) { } |
1534 | static inline void tb_debugfs_exit(void) { } |
1535 | static inline void tb_switch_debugfs_init(struct tb_switch *sw) { } |
1536 | static inline void tb_switch_debugfs_remove(struct tb_switch *sw) { } |
1537 | static inline void tb_xdomain_debugfs_init(struct tb_xdomain *xd) { } |
1538 | static inline void tb_xdomain_debugfs_remove(struct tb_xdomain *xd) { } |
1539 | static inline void tb_service_debugfs_init(struct tb_service *svc) { } |
1540 | static inline void tb_service_debugfs_remove(struct tb_service *svc) { } |
1541 | static inline void tb_retimer_debugfs_init(struct tb_retimer *rt) { } |
1542 | static inline void tb_retimer_debugfs_remove(struct tb_retimer *rt) { } |
1543 | #endif |
1544 | |
1545 | #endif |
1546 |
Definitions
- tb_nvm
- tb_nvm_write_ops
- tb_switch_tmu_mode
- tb_switch_tmu
- tb_switch
- tb_bandwidth_group
- tb_port
- usb4_port
- tb_retimer
- tb_path_hop
- tb_path_port
- tb_path
- tb_cm_ops
- tb_priv
- tb_upstream_port
- tb_is_upstream_port
- tb_route
- tb_port_at
- tb_width_name
- tb_port_has_remote
- tb_port_is_null
- tb_port_is_nhi
- tb_port_is_pcie_down
- tb_port_is_pcie_up
- tb_port_is_dpin
- tb_port_is_dpout
- tb_port_is_usb3_down
- tb_port_is_usb3_up
- tb_sw_read
- tb_sw_write
- tb_port_read
- tb_port_write
- tb_domain_get
- tb_domain_put
- tb_domain_event
- tb_switch_get
- tb_switch_put
- tb_is_switch
- tb_to_switch
- tb_switch_parent
- tb_switch_downstream_port
- tb_switch_depth
- tb_switch_is_light_ridge
- tb_switch_is_eagle_ridge
- tb_switch_is_cactus_ridge
- tb_switch_is_falcon_ridge
- tb_switch_is_alpine_ridge
- tb_switch_is_titan_ridge
- tb_switch_is_tiger_lake
- tb_switch_is_icm
- tb_switch_tmu_is_configured
- tb_switch_tmu_is_enabled
- tb_switch_clx_is_enabled
- tb_port_path_direction_downstream
- tb_port_use_credit_allocation
- tb_route_length
- tb_downstream_route
- tb_xdomain_parent
- tb_xdomain_downstream_port
- tb_is_retimer
- tb_to_retimer
- usb4_switch_version
- tb_switch_is_usb4
- usb4_sb_target
- usb4_margin_sw_error_counter
- usb4_margining_lane
- usb4_port_margining_params
- tb_is_usb4_port_device
- tb_to_usb4_port_device
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