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| author | Alistair Popple <alistair@popple.id.au> | 2017-06-15 15:51:54 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-06-20 14:31:56 +1000 |
| commit | 3704e7784d0f65d926901799af14247613006876 (patch) | |
| tree | 8c5b717167164200faabf525fd45728d2dfb42ed /doc | |
| parent | ebfcfaa0c3e5b3813d3e35d456f7c16c6a53ff0d (diff) | |
| download | skiboot-3704e7784d0f65d926901799af14247613006876.zip skiboot-3704e7784d0f65d926901799af14247613006876.tar.gz skiboot-3704e7784d0f65d926901799af14247613006876.tar.bz2 | |
NPU2: Add flag to nvlink config space indicating DL reset state
Device drivers need to be able to determine if the DL is out of reset or
not so they can safely probe to see if links have already been trained.
This patch adds a flag to the vendor specific config space indicating if
the DL is out of reset.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/nvlink.rst | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/doc/nvlink.rst b/doc/nvlink.rst index cba64df..f33574a 100644 --- a/doc/nvlink.rst +++ b/doc/nvlink.rst @@ -146,8 +146,8 @@ Procedure Status Register PCI Device Flag - Bit 0 is set only if an actual PCI device was bound to this - emulated device. + Bit 0 - set if the GPU PCIe device associated with this nvlink was found. + bit 1 - set if the DL has been taken out of reset. Link Number |