pci/pcie/aspm.c

120 	u16 reg16;
128 		pci_read_config_word(child, pos + PCI_EXP_LNKCTL, &reg16);
130 			reg16 |= PCI_EXP_LNKCTL_CLKREQ_EN;
132 			reg16 &= ~PCI_EXP_LNKCTL_CLKREQ_EN;
133 		pci_write_config_word(child, pos + PCI_EXP_LNKCTL, reg16);
153 	u16 reg16;
168 		pci_read_config_word(child, pos + PCI_EXP_LNKCTL, &reg16);
169 		if (!(reg16 & PCI_EXP_LNKCTL_CLKREQ_EN))
185 	u16 reg16, parent_reg, child_reg[8];
198 	pci_read_config_word(child, cpos + PCI_EXP_LNKSTA, &reg16);
199 	if (!(reg16 & PCI_EXP_LNKSTA_SLC))
204 	pci_read_config_word(parent, ppos + PCI_EXP_LNKSTA, &reg16);
205 	if (!(reg16 & PCI_EXP_LNKSTA_SLC))
211 		pci_read_config_word(child, cpos + PCI_EXP_LNKCTL, &reg16);
212 		child_reg[PCI_FUNC(child->devfn)] = reg16;
214 			reg16 |= PCI_EXP_LNKCTL_CCC;
216 			reg16 &= ~PCI_EXP_LNKCTL_CCC;
217 		pci_write_config_word(child, cpos + PCI_EXP_LNKCTL, reg16);
221 	pci_read_config_word(parent, ppos + PCI_EXP_LNKCTL, &reg16);
222 	parent_reg = reg16;
224 		reg16 |= PCI_EXP_LNKCTL_CCC;
226 		reg16 &= ~PCI_EXP_LNKCTL_CCC;
227 	pci_write_config_word(parent, ppos + PCI_EXP_LNKCTL, reg16);
230 	reg16 |= PCI_EXP_LNKCTL_RL;
231 	pci_write_config_word(parent, ppos + PCI_EXP_LNKCTL, reg16);
236 		pci_read_config_word(parent, ppos + PCI_EXP_LNKSTA, &reg16);
237 		if (!(reg16 & PCI_EXP_LNKSTA_LT))
243 	if (!(reg16 & PCI_EXP_LNKSTA_LT))
300 	u16 reg16;
308 	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
309 	info->enabled = reg16 & PCI_EXP_LNKCTL_ASPMC;
438 	u16 reg16;
441 	pci_read_config_word(pdev, pos + PCI_EXP_LNKCTL, &reg16);
442 	reg16 &= ~0x3;
443 	reg16 |= val;
444 	pci_write_config_word(pdev, pos + PCI_EXP_LNKCTL, reg16);