diff options
Diffstat (limited to 'src/include/device/pci_def.h')
| -rw-r--r-- | src/include/device/pci_def.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/include/device/pci_def.h b/src/include/device/pci_def.h index 1674ee1e49..60d913204a 100644 --- a/src/include/device/pci_def.h +++ b/src/include/device/pci_def.h @@ -373,6 +373,12 @@ #define PCI_EXP_DEVCAP 4 /* Device capabilities */ #define PCI_EXP_DEVCAP_PAYLOAD 0x07 /* Max_Payload_Size */ #define PCI_EXP_DEVCAP_PHANTOM 0x18 /* Phantom functions */ +#define PCI_EXP_DEV_CAP2_OFFSET 0x24 /* Device Capabilities 2 offset */ +/* LTR mechanism supported.Bit 11 of Device Cap 2 Register */ +#define LTR_MECHANISM_SUPPORT (1 << 11) +#define PCI_EXP_DEV_CTL_STS2_CAP_OFFSET 0x28 /* Device Control 2 offset */ +/* LTR mechanism enable. Bit 10 of Device Control 2 Register */ +#define LTR_MECHANISM_EN (1 << 10) #define PCI_EXP_DEVCAP_EXT_TAG 0x20 /* Extended tags */ #define PCI_EXP_DEVCAP_L0S 0x1c0 /* L0s Acceptable Latency */ #define PCI_EXP_DEVCAP_L1 0xe00 /* L1 Acceptable Latency */ |