diff options
| -rw-r--r-- | drivers/pci/pcie/aspm.c | 11 | ||||
| -rw-r--r-- | include/uapi/linux/pci_regs.h | 2 |
2 files changed, 8 insertions, 5 deletions
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 213753b283a..c2faf9d0ffd 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -427,7 +427,8 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist) static void pcie_config_aspm_dev(struct pci_dev *pdev, u32 val) { - pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL, 0x3, val); + pcie_capability_clear_and_set_word(pdev, PCI_EXP_LNKCTL, + PCI_EXP_LNKCTL_ASPMC, val); } static void pcie_config_aspm_link(struct pcie_link_state *link, u32 state) @@ -442,12 +443,12 @@ static void pcie_config_aspm_link(struct pcie_link_state *link, u32 state) return; /* Convert ASPM state to upstream/downstream ASPM register state */ if (state & ASPM_STATE_L0S_UP) - dwstream |= PCIE_LINK_STATE_L0S; + dwstream |= PCI_EXP_LNKCTL_ASPM_L0S; if (state & ASPM_STATE_L0S_DW) - upstream |= PCIE_LINK_STATE_L0S; + upstream |= PCI_EXP_LNKCTL_ASPM_L0S; if (state & ASPM_STATE_L1) { - upstream |= PCIE_LINK_STATE_L1; - dwstream |= PCIE_LINK_STATE_L1; + upstream |= PCI_EXP_LNKCTL_ASPM_L1; + dwstream |= PCI_EXP_LNKCTL_ASPM_L1; } /* * Spec 2.0 suggests all functions should be configured the diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 4cca834f9ab..0b6dbe49dc1 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -469,6 +469,8 @@ #define PCI_EXP_LNKCAP_PN 0xff000000 /* Port Number */ #define PCI_EXP_LNKCTL 16 /* Link Control */ #define PCI_EXP_LNKCTL_ASPMC 0x0003 /* ASPM Control */ +#define PCI_EXP_LNKCTL_ASPM_L0S 0x01 /* L0s Enable */ +#define PCI_EXP_LNKCTL_ASPM_L1 0x02 /* L1 Enable */ #define PCI_EXP_LNKCTL_RCB 0x0008 /* Read Completion Boundary */ #define PCI_EXP_LNKCTL_LD 0x0010 /* Link Disable */ #define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */ |