diff options
Diffstat (limited to 'drivers/thunderbolt/tb.h')
| -rw-r--r-- | drivers/thunderbolt/tb.h | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h index b4487354e117..4ec89df69571 100644 --- a/drivers/thunderbolt/tb.h +++ b/drivers/thunderbolt/tb.h @@ -109,6 +109,13 @@ struct tb_switch_tmu { enum tb_switch_tmu_rate rate_request; }; +enum tb_clx { + TB_CLX_DISABLE, + TB_CL0S, + TB_CL1, + TB_CL2, +}; + /** * struct tb_switch - a thunderbolt switch * @dev: Device for the switch @@ -157,6 +164,7 @@ struct tb_switch_tmu { * @min_dp_main_credits: Router preferred minimum number of buffers for DP MAIN * @max_pcie_credits: Router preferred number of buffers for PCIe * @max_dma_credits: Router preferred number of buffers for DMA/P2P + * @clx: CLx state on the upstream link of the router * * When the switch is being added or removed to the domain (other * switches) you need to have domain lock held. @@ -205,6 +213,7 @@ struct tb_switch { unsigned int min_dp_main_credits; unsigned int max_pcie_credits; unsigned int max_dma_credits; + enum tb_clx clx; }; /** @@ -862,6 +871,20 @@ static inline bool tb_switch_is_titan_ridge(const struct tb_switch *sw) return false; } +static inline bool tb_switch_is_tiger_lake(const struct tb_switch *sw) +{ + if (sw->config.vendor_id == PCI_VENDOR_ID_INTEL) { + switch (sw->config.device_id) { + case PCI_DEVICE_ID_INTEL_TGL_NHI0: + case PCI_DEVICE_ID_INTEL_TGL_NHI1: + case PCI_DEVICE_ID_INTEL_TGL_H_NHI0: + case PCI_DEVICE_ID_INTEL_TGL_H_NHI1: + return true; + } + } + return false; +} + /** * tb_switch_is_usb4() - Is the switch USB4 compliant * @sw: Switch to check @@ -918,6 +941,33 @@ static inline bool tb_switch_tmu_hifi_is_enabled(const struct tb_switch *sw, sw->tmu.unidirectional == unidirectional; } +int tb_switch_enable_clx(struct tb_switch *sw, enum tb_clx clx); +int tb_switch_disable_clx(struct tb_switch *sw, enum tb_clx clx); + +/** + * tb_switch_is_clx_enabled() - Checks if the CLx is enabled + * @sw: Router to check the CLx state for + * + * Checks if the CLx is enabled on the router upstream link. + * Not applicable for a host router. + */ +static inline bool tb_switch_is_clx_enabled(const struct tb_switch *sw) +{ + return sw->clx != TB_CLX_DISABLE; +} + +/** + * tb_switch_is_cl0s_enabled() - Checks if the CL0s is enabled + * @sw: Router to check for the CL0s + * + * Checks if the CL0s is enabled on the router upstream link. + * Not applicable for a host router. + */ +static inline bool tb_switch_is_cl0s_enabled(const struct tb_switch *sw) +{ + return sw->clx == TB_CL0S; +} + int tb_wait_for_port(struct tb_port *port, bool wait_if_unplugged); int tb_port_add_nfc_credits(struct tb_port *port, int credits); int tb_port_clear_counter(struct tb_port *port, int counter); @@ -1097,6 +1147,7 @@ void usb4_port_unconfigure_xdomain(struct tb_port *port); int usb4_port_router_offline(struct tb_port *port); int usb4_port_router_online(struct tb_port *port); int usb4_port_enumerate_retimers(struct tb_port *port); +bool usb4_port_clx_supported(struct tb_port *port); int usb4_port_retimer_set_inbound_sbtx(struct tb_port *port, u8 index); int usb4_port_retimer_read(struct tb_port *port, u8 index, u8 reg, void *buf, |