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| author | Bjorn Helgaas | 2016-06-13 18:01:51 +0200 |
|---|---|---|
| committer | Bjorn Helgaas | 2016-08-18 23:04:57 +0200 |
| commit | eec097d43100a8195fd4f678671ecd5d986dd675 (patch) | |
| tree | ec874686b415958f9123b68f4ba0f85bae6b8c86 /include/uapi/linux/pci_regs.h | |
| parent | PCI: Add Precision Time Measurement (PTM) support (diff) | |
| download | kernel-qcow2-linux-eec097d43100a8195fd4f678671ecd5d986dd675.tar.gz kernel-qcow2-linux-eec097d43100a8195fd4f678671ecd5d986dd675.tar.xz kernel-qcow2-linux-eec097d43100a8195fd4f678671ecd5d986dd675.zip | |
PCI: Add pci_enable_ptm() for drivers to enable PTM on endpoints
Add an pci_enable_ptm() interface so drivers can enable PTM.
The PCI core enables PTM on PTM Roots and switches automatically, but we
don't enable PTM on endpoints unless a driver requests it.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/uapi/linux/pci_regs.h')
| -rw-r--r-- | include/uapi/linux/pci_regs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 926fff41b417..72bbe1491cbf 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -967,6 +967,7 @@ /* Precision Time Measurement */ #define PCI_PTM_CAP 0x04 /* PTM Capability */ +#define PCI_PTM_CAP_REQ 0x00000001 /* Requester capable */ #define PCI_PTM_CAP_ROOT 0x00000004 /* Root capable */ #define PCI_PTM_CTRL 0x08 /* PTM Control */ #define PCI_PTM_CTRL_ENABLE 0x00000001 /* PTM enable */ |