11  * and notify the operating system when the Link Width or Speed changes. The
17  * the cached Current Link Speed that is exposed to user space through sysfs.
40  * @set_speed_mutex:	Serializes link speed changes
51  * Prevent port removal during LBMS count accessors and Link Speed changes.
61 static bool pcie_valid_speed(enum pci_bus_speed speed)  in pcie_valid_speed()  argument
63 	return (speed >= PCIE_SPEED_2_5GT) && (speed <= PCIE_SPEED_64_0GT);  in pcie_valid_speed()
66 static u16 pci_bus_speed2lnkctl2(enum pci_bus_speed speed)  in pci_bus_speed2lnkctl2()  argument
77 	if (WARN_ON_ONCE(!pcie_valid_speed(speed)))  in pci_bus_speed2lnkctl2()
80 	return speed_conv[speed];  in pci_bus_speed2lnkctl2()
89  * pcie_bwctrl_select_speed - Select Target Link Speed
91  * @speed_req:	Requested PCIe Link Speed
93  * Select Target Link Speed by take into account Supported Link Speeds of
96  * Return: Target Link Speed (1=2.5GT/s, 2=5GT/s, 3=8GT/s, etc.)
135 	 * Ensure link speed updates also with platforms that have problems  in pcie_bwctrl_change_speed()
145  * pcie_set_target_speed - Set downstream Link Speed for PCIe Port
147  * @speed_req:	Requested PCIe Link Speed
150  * Attempt to set PCIe Port Link Speed to @speed_req. @speed_req may be
151  * adjusted downwards to the best speed supported by both the Port and PCIe
156  * * -EINVAL	- @speed_req is not a PCIe Link Speed
158  * * -ETIMEDOUT	- changing Link Speed took too long
159  * * -EAGAIN	- Link Speed was changed but @speed_req was not achieved
181 		 * e.g. from the Target Speed quirk.  in pcie_set_target_speed()
193 	 * Despite setting higher speed into the Target Link Speed, empty  in pcie_set_target_speed()
222 	 * link speed is up to date.  in pcie_bwnotif_enable()
255 	 * Interrupts will not be triggered from any further Link Speed  in pcie_bwnotif_irq()
257 	 * speed (inside pcie_update_link_speed()) after LBMS has been  in pcie_bwnotif_irq()
258 	 * cleared to avoid missing link speed changes.  in pcie_bwnotif_irq()