33 #define ASPM_STATE_L1_1		(8)	/* ASPM L1.1 state */
34 #define ASPM_STATE_L1_2		(0x10)	/* ASPM L1.2 state */
52 	/* ASPM state */
53 	u32 aspm_support:7;		/* Supported ASPM state */
54 	u32 aspm_enabled:7;		/* Enabled ASPM state */
55 	u32 aspm_capable:7;		/* Capable ASPM state with latency */
56 	u32 aspm_default:7;		/* Default ASPM state by BIOS */
57 	u32 aspm_disable:7;		/* Disabled ASPM state */
111 		/* Disable ASPM and Clock PM */  in policy_to_aspm_state()
114 		/* Enable ASPM L0s/L1 */  in policy_to_aspm_state()
129 		/* Disable ASPM and Clock PM */  in policy_to_clkpm_state()
197  *   common clock. That will reduce the ASPM state exit latency.
238 		pci_info(parent, "ASPM: current common clock configuration is inconsistent, reconfiguring\n");  in pcie_aspm_configure_common_clock()
257 		pci_err(parent, "ASPM: Could not configure common clock\n");  in pcie_aspm_configure_common_clock()
549 	 * to this device, we can't use ASPM L1.2 because it relies on the  in aspm_l1ss_init()
592 		/* Set enabled/disable so that we will disable ASPM later */  in pcie_aspm_cap_init()
599 	 * If ASPM not supported, don't mess with the clocks and link,  in pcie_aspm_cap_init()
661 /* Configure the ASPM L1 substates */
673 	 * - When enabling ASPM L1.x, need to disable L1  in pcie_config_aspm_l1ss()
675 	 * - The ASPM/PCIPM L1.2 must be disabled while programming timing  in pcie_config_aspm_l1ss()
743 	/* Convert ASPM state to upstream/downstream ASPM register state */  in pcie_config_aspm_link()
758 	 * same setting for ASPM. Enabling ASPM L1 should be done in  in pcie_config_aspm_link()
760 	 * versa for disabling ASPM L1. Spec doesn't mention L0S.  in pcie_config_aspm_link()
793 	 * very strange. Disable ASPM for the whole slot  in pcie_aspm_sanity_check()
800 		 * If ASPM is disabled then we're not going to change  in pcie_aspm_sanity_check()
809 		 * Disable ASPM for pre-1.1 PCIe device, we follow MS to use  in pcie_aspm_sanity_check()
814 …pci_info(child, "disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'\…  in pcie_aspm_sanity_check()
908 	 * Setup initial ASPM state. Note that we need to configure  in pcie_aspm_init_link_state()
919 	 * link policy setting. Enabling ASPM on broken hardware can cripple  in pcie_aspm_init_link_state()
920 	 * it even before the driver has had a chance to disable ASPM, so  in pcie_aspm_init_link_state()
921 	 * default to a safe level right now. If we're enabling ASPM beyond  in pcie_aspm_init_link_state()
1069 	 * A driver requested that ASPM be disabled on this device, but  in __pci_disable_link_state()
1070 	 * if we don't have permission to manage ASPM (e.g., on ACPI  in __pci_disable_link_state()
1077 		pci_warn(pdev, "can't disable ASPM; OS doesn't have ASPM control\n");  in __pci_disable_link_state()
1117  * never enter specific states.  Note that if the BIOS didn't grant ASPM
1122  * @state: ASPM link state to disable
1137 	 * A driver requested that ASPM be enabled on this device, but  in __pci_enable_link_state()
1138 	 * if we don't have permission to manage ASPM (e.g., on ACPI  in __pci_enable_link_state()
1143 		pci_warn(pdev, "can't override BIOS ASPM; OS doesn't have ASPM control\n");  in __pci_enable_link_state()
1178  * BIOS didn't grant ASPM control to the OS, this does nothing because we can't
1183  * @state: Mask of ASPM link states to enable
1194  * the BIOS didn't grant ASPM control to the OS, this does nothing because we
1199  * @state: Mask of ASPM link states to enable
1253  * pcie_aspm_enabled - Check if PCIe ASPM has been enabled for a device.
1419 		printk(KERN_INFO "PCIe ASPM is disabled\n");  in pcie_aspm_disable()
1422 		printk(KERN_INFO "PCIe ASPM is forcibly enabled\n");  in pcie_aspm_disable()
1432 	 * Disabling ASPM is intended to prevent the kernel from modifying  in pcie_no_aspm()