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Update dlpack to v1.2 #2193

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Update dlpack to v1.2 #2193

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9ca567b
use vendored dlpack v1.2
ndgrigorian Nov 19, 2025
5df55b6
update Cython definitions of DLPack data type codes
ndgrigorian Nov 19, 2025
68c2167
Add AWS Trainium device
ndgrigorian Nov 19, 2025
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1 change: 1 addition & 0 deletions dpctl/tensor/_dlpack.pxd
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,7 @@ cdef extern from "dlpack/dlpack.h" nogil:
int device_WebGPU "kDLWebGPU"
int device_Hexagon "kDLHexagon"
int device_MAIA "kDLMAIA"
int device_Trn "kDLTrn"

cpdef object to_dlpack_capsule(usm_ndarray array) except +
cpdef object to_dlpack_versioned_capsule(
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12 changes: 12 additions & 0 deletions dpctl/tensor/_dlpack.pyx
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Expand Up @@ -76,6 +76,7 @@ cdef extern from "dlpack/dlpack.h" nogil:
kDLWebGPU
kDLHexagon
kDLMAIA
kDLTrn
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@antonwolfy antonwolfy Nov 21, 2025

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It seems we need to update numpy_to_dlpack_versioned_capsule at line following dlpack changes added in v1.2
NumPy did that here.

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@ndgrigorian ndgrigorian Nov 21, 2025

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good point, I didn't think we would need to make a change for that part, but I'll adjust it


ctypedef struct DLDevice:
DLDeviceType device_type
Expand All @@ -88,6 +89,17 @@ cdef extern from "dlpack/dlpack.h" nogil:
kDLBfloat
kDLComplex
kDLBool
kDLFloat8_e3m4
kDLFloat8_e4m3
kDLFloat8_e4m3b11fnuz
kDLFloat8_e4m3fn
kDLFloat8_e4m3fnuz
kDLFloat8_e5m2
kDLFloat8_e5m2fnuz
kDLFloat8_e8m0fnu
kDLFloat6_e2m3fn
kDLFloat6_e3m2fn
kDLFloat4_e2m1fn

ctypedef struct DLDataType:
uint8_t code
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3 changes: 3 additions & 0 deletions dpctl/tensor/_usmarray.pyx
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Expand Up @@ -86,6 +86,8 @@ class DLDeviceType(IntEnum):
Qualcomm Hexagon DSP
``kDLMAIA``:
Microsoft MAIA device
``kDLTrn``:
AWS Trainium device
"""
kDLCPU = c_dlpack.device_CPU
kDLCUDA = c_dlpack.device_CUDA
Expand All @@ -101,6 +103,7 @@ class DLDeviceType(IntEnum):
kDLWebGPU = c_dlpack.device_WebGPU
kDLHexagon = c_dlpack.device_Hexagon
kDLMAIA = c_dlpack.device_MAIA
kDLTrn = c_dlpack.device_Trn


cdef class InternalUSMArrayError(Exception):
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