diff options
| author | Alistair Popple <alistair@popple.id.au> | 2017-03-24 12:22:26 +1100 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-03-30 19:37:48 +1100 |
| commit | d95ffaa6fac5b0094cb473ad6bbc8923ce4107d7 (patch) | |
| tree | fb9459fb492c9a9b909376c57b9ca573712a4ab8 /include/npu2.h | |
| parent | 5180d6555b098f67013d28c388285199b47c911b (diff) | |
| download | blackbird-skiboot-d95ffaa6fac5b0094cb473ad6bbc8923ce4107d7.tar.gz blackbird-skiboot-d95ffaa6fac5b0094cb473ad6bbc8923ce4107d7.zip | |
npu2: Add hardware link training procedures
Unlike other system buses the NVLink2 links need to be trained at
runtime as training requires interaction from the GPU device
drivers. This patch implements the required training procedures for
NVLink2, which are different than the NVLink1 equivalents.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'include/npu2.h')
| -rw-r--r-- | include/npu2.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/npu2.h b/include/npu2.h index d535e656..64d6dc09 100644 --- a/include/npu2.h +++ b/include/npu2.h @@ -25,6 +25,10 @@ #define NPU2ERR(p, fmt, a...) prlog(PR_ERR, "NPU%d: " fmt, \ (p)->phb.opal_id, ##a) +#define NPU2DEVDBG(p, fmt, a...) NPU2DBG((p)->npu, fmt, ##a) +#define NPU2DEVINF(p, fmt, a...) NPU2INF((p)->npu, fmt, ##a) +#define NPU2DEVERR(p, fmt, a...) NPU2ERR((p)->npu, fmt, ##a) + /* Number of PEs supported */ #define NPU2_MAX_PE_NUM 16 #define NPU2_RESERVED_PE_NUM 15 @@ -78,6 +82,7 @@ struct npu2_dev { uint32_t index; uint32_t flags; uint64_t xscom; + uint64_t pl_xscom_base; void *regs; struct dt_node *dt_node; struct npu2_pcie_bar bars[2]; @@ -94,11 +99,13 @@ struct npu2_dev { struct phb *phb; struct pci_device *pd; + int ntl_reset_done; + /* Vendor specific capability */ uint32_t vendor_cap; /* Which PHY lanes this device is associated with */ - uint16_t lane_mask; + uint32_t lane_mask; /* Track currently running procedure and step number */ uint16_t procedure_number; |
