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| author | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-05 13:51:19 -0700 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2012-12-07 11:18:31 -0700 |
| commit | 7508320678b7819ac6aeb89580b8622a424ce586 (patch) | |
| tree | 076a76febea9e199c50e04b1f37283d994b39b12 /include/uapi | |
| parent | 33e8b34fdd5640f3aa1597710352349cbc823374 (diff) | |
| download | linux-7508320678b7819ac6aeb89580b8622a424ce586.tar.gz linux-7508320678b7819ac6aeb89580b8622a424ce586.tar.bz2 linux-7508320678b7819ac6aeb89580b8622a424ce586.zip | |
PCI: Add standard PCIe Capability Link ASPM field names
Add standard #defines for ASPM fields in PCI Express Link Capability and
Link Control registers.
Previously we used PCIE_LINK_STATE_L0S and PCIE_LINK_STATE_L1 directly, but
these are defined for the Linux ASPM interfaces, e.g.,
pci_disable_link_state(), and only coincidentally match the actual register
bits. PCIE_LINK_STATE_CLKPM, also part of that interface, does not match
the register bit.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/pci_regs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 4cca834f9abd..0b6dbe49dc1e 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 */ |