Merge tag 'thunderbolt-for-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:

thunderbolt: Changes for v5.12 merge window

This includes following Thunderbolt/USB4 changes for v5.12 merge
window:

  * Start lane initialization after sleep for Thunderbolt 3 compatible
    devices

  * Add support for de-authorizing PCIe tunnels (software based
    connection manager only)

  * Add support for new ACPI 6.4 USB4 _OSC

  * Allow disabling XDomain protocol

  * Add support for new SL5 security level

  * Clean up kernel-docs to pass W=1 builds

  * A couple of cleanups and minor fixes

All these have been in linux-next without reported issues.

* tag 'thunderbolt-for-v5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (27 commits)
  thunderbolt: Add support for native USB4 _OSC
  ACPI: Add support for native USB4 control _OSC
  ACPI: Execute platform _OSC also with query bit clear
  thunderbolt: Allow disabling XDomain protocol
  thunderbolt: Add support for PCIe tunneling disabled (SL5)
  thunderbolt: dma_test: Drop unnecessary include
  thunderbolt: Add clarifying comments about USB4 terms router and adapter
  thunderbolt: switch: Fix kernel-doc descriptions of non-static functions
  thunderbolt: nhi: Fix kernel-doc descriptions of non-static functions
  thunderbolt: path: Fix kernel-doc descriptions of non-static functions
  thunderbolt: eeprom: Fix kernel-doc descriptions of non-static functions
  thunderbolt: ctl: Fix kernel-doc descriptions of non-static functions
  thunderbolt: switch: Fix function name in the header
  thunderbolt: tunnel: Fix misspelling of 'receive_path'
  thunderbolt: icm: Fix a couple of formatting issues
  thunderbolt: switch: Demote a bunch of non-conformant kernel-doc headers
  thunderbolt: tb: Kernel-doc function headers should document their parameters
  thunderbolt: nhi: Demote some non-conformant kernel-doc headers
  thunderbolt: xdomain: Fix 'tb_unregister_service_driver()'s 'drv' param
  thunderbolt: eeprom: Demote non-conformant kernel-doc headers to standard comment blocks
  ...

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index 554feda1e359..beea88c34c0f 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -138,6 +138,8 @@ struct tb_switch_tmu {
  *
  * When the switch is being added or removed to the domain (other
  * switches) you need to have domain lock held.
+ *
+ * In USB4 terminology this structure represents a router.
  */
 struct tb_switch {
 	struct device dev;
@@ -196,6 +198,9 @@ struct tb_switch {
  * @in_hopids: Currently allocated input HopIDs
  * @out_hopids: Currently allocated output HopIDs
  * @list: Used to link ports to DP resources list
+ *
+ * In USB4 terminology this structure represents an adapter (protocol or
+ * lane adapter).
  */
 struct tb_port {
 	struct tb_regs_port_header config;
@@ -361,6 +366,7 @@ struct tb_path {
  * @handle_event: Handle thunderbolt event
  * @get_boot_acl: Get boot ACL list
  * @set_boot_acl: Set boot ACL list
+ * @disapprove_switch: Disapprove switch (disconnect PCIe tunnel)
  * @approve_switch: Approve switch
  * @add_switch_key: Add key to switch
  * @challenge_switch_key: Challenge switch using key
@@ -394,6 +400,7 @@ struct tb_cm_ops {
 			     const void *buf, size_t size);
 	int (*get_boot_acl)(struct tb *tb, uuid_t *uuids, size_t nuuids);
 	int (*set_boot_acl)(struct tb *tb, const uuid_t *uuids, size_t nuuids);
+	int (*disapprove_switch)(struct tb *tb, struct tb_switch *sw);
 	int (*approve_switch)(struct tb *tb, struct tb_switch *sw);
 	int (*add_switch_key)(struct tb *tb, struct tb_switch *sw);
 	int (*challenge_switch_key)(struct tb *tb, struct tb_switch *sw,
@@ -629,6 +636,7 @@ int tb_domain_thaw_noirq(struct tb *tb);
 void tb_domain_complete(struct tb *tb);
 int tb_domain_runtime_suspend(struct tb *tb);
 int tb_domain_runtime_resume(struct tb *tb);
+int tb_domain_disapprove_switch(struct tb *tb, struct tb_switch *sw);
 int tb_domain_approve_switch(struct tb *tb, struct tb_switch *sw);
 int tb_domain_approve_switch_key(struct tb *tb, struct tb_switch *sw);
 int tb_domain_challenge_switch_key(struct tb *tb, struct tb_switch *sw);
@@ -923,6 +931,7 @@ int tb_lc_configure_port(struct tb_port *port);
 void tb_lc_unconfigure_port(struct tb_port *port);
 int tb_lc_configure_xdomain(struct tb_port *port);
 void tb_lc_unconfigure_xdomain(struct tb_port *port);
+int tb_lc_start_lane_initialization(struct tb_port *port);
 int tb_lc_set_wake(struct tb_switch *sw, unsigned int flags);
 int tb_lc_set_sleep(struct tb_switch *sw);
 bool tb_lc_lane_bonding_possible(struct tb_switch *sw);
@@ -949,6 +958,7 @@ static inline u64 tb_downstream_route(struct tb_port *port)
 	       | ((u64) port->port << (port->sw->config.depth * 8));
 }
 
+bool tb_is_xdomain_enabled(void);
 bool tb_xdomain_handle_request(struct tb *tb, enum tb_cfg_pkg_type type,
 			       const void *buf, size_t size);
 struct tb_xdomain *tb_xdomain_alloc(struct tb *tb, struct device *parent,
@@ -1034,8 +1044,20 @@ void tb_check_quirks(struct tb_switch *sw);
 
 #ifdef CONFIG_ACPI
 void tb_acpi_add_links(struct tb_nhi *nhi);
+
+bool tb_acpi_is_native(void);
+bool tb_acpi_may_tunnel_usb3(void);
+bool tb_acpi_may_tunnel_dp(void);
+bool tb_acpi_may_tunnel_pcie(void);
+bool tb_acpi_is_xdomain_allowed(void);
 #else
 static inline void tb_acpi_add_links(struct tb_nhi *nhi) { }
+
+static inline bool tb_acpi_is_native(void) { return true; }
+static inline bool tb_acpi_may_tunnel_usb3(void) { return true; }
+static inline bool tb_acpi_may_tunnel_dp(void) { return true; }
+static inline bool tb_acpi_may_tunnel_pcie(void) { return true; }
+static inline bool tb_acpi_is_xdomain_allowed(void) { return true; }
 #endif
 
 #ifdef CONFIG_DEBUG_FS