Add AMDGPU extension and some GPU tests

.buildkite/pipeline.yml

@@ -31,3 +31,35 @@ steps:
       cuda: "*"
     if: build.message !~ /\[skip tests\]/
     timeout_in_minutes: 30
+
+  - label: "Julia v1 -- AMDGPU"
+    plugins:
+      - JuliaCI/julia#v1:
+          version: "1"
+      - JuliaCI/julia-test#v1: ~
+      - JuliaCI/julia-coverage#v1:
+          dirs:
+            - src
+            - ext
+    agents:
+      queue: "juliagpu"
+      rocm: "*"
+      rocmgpu: "*"
+    if: build.message !~ /\[skip tests\]/
+    timeout_in_minutes: 30
+
+  - label: "Julia LTS -- AMDGPU"
+    plugins:
+      - JuliaCI/julia#v1:
+          version: "1.10" # "lts" isn't valid
+      - JuliaCI/julia-test#v1: ~
+      - JuliaCI/julia-coverage#v1:
+          dirs:
+            - src
+            - ext
+    agents:
+      queue: "juliagpu"
+      rocm: "*"
+      rocmgpu: "*"
+    if: build.message !~ /\[skip tests\]/
+    timeout_in_minutes: 30

Project.toml

@@ -8,14 +8,17 @@ LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 PackageExtensionCompat = "65ce6f38-6b18-4e1d-a461-8949797d7930"
 
 [weakdeps]
+AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
 CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
 PtrArrays = "43287f4e-b6f4-7ad1-bb20-aadabca52c3d"
 
 [extensions]
+StridedViewsAMDGPUExt = "AMDGPU"
 StridedViewsCUDAExt = "CUDA"
 StridedViewsPtrArraysExt = "PtrArrays"
 
 [compat]
+AMDGPU = "2"
 Aqua = "0.8"
 CUDA = "4,5"
 JET = "0.9, 0.10, 0.11"
@@ -27,6 +30,7 @@ Test = "1.6"
 julia = "1.10"
 
 [extras]
+AMDGPU = "21141c5a-9bdb-4563-92ae-f87d6854732e"
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
 CUDA = "052768ef-5323-5732-b1bb-66c8b64840ba"
 JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
@@ -35,4 +39,4 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["Test", "Random", "Aqua", "JET", "PtrArrays", "CUDA"]
+test = ["Test", "Random", "Aqua", "JET", "PtrArrays", "CUDA", "AMDGPU"]

ext/StridedViewsAMDGPUExt.jl

@@ -0,0 +1,27 @@
+module StridedViewsAMDGPUExt
+
+using StridedViews
+using AMDGPU
+using AMDGPU: Adapt, ROCPtr
+
+const ROCStridedView{T, N, A <: ROCArray{T}} = StridedView{T, N, A}
+
+function Adapt.adapt_structure(to, A::ROCStridedView)
+    return StridedView(
+        Adapt.adapt_structure(to, parent(A)),
+        A.size, A.strides, A.offset, A.op
+    )
+end
+
+function Base.pointer(x::ROCStridedView{T}) where {T}
+    return Base.unsafe_convert(Ptr{T}, pointer(x.parent, x.offset + 1))
+end
+function Base.unsafe_convert(::Type{Ptr{T}}, a::ROCStridedView{T}) where {T}
+    return convert(Ptr{T}, pointer(a))
+end
+
+function Base.print_array(io::IO, X::ROCStridedView)
+    return Base.print_array(io, Adapt.adapt_structure(Array, X))
+end
+
+end # module

ext/StridedViewsCUDAExt.jl

@@ -6,9 +6,9 @@ using CUDA: Adapt, CuPtr
 
 const CuStridedView{T, N, A <: CuArray{T}} = StridedView{T, N, A}
 
-function Adapt.adapt_structure(::Type{T}, A::StridedView) where {T}
+function Adapt.adapt_structure(to, A::CuStridedView)
     return StridedView(
-        Adapt.adapt_structure(T, parent(A)),
+        Adapt.adapt_structure(to, parent(A)),
         A.size, A.strides, A.offset, A.op
     )
 end

test/runtests.jl

@@ -298,3 +298,29 @@ if !is_buildkite
         JET.test_package(StridedViews; target_modules = (StridedViews,))
     end
 end
+
+using CUDA, AMDGPU
+
+if CUDA.functional()
+    @testset "CuArrays with StridedView" begin
+        @testset for T in (Float64, ComplexF64)
+            A = CUDA.randn!(T, 10, 10, 10, 10)
+            @test isstrided(A)
+            B = StridedView(A)
+            @test B isa StridedView
+            @test B == A
+        end
+    end
+end
+
+if AMDGPU.functional()
+    @testset "ROCArrays with StridedView" begin
+        @testset for T in (Float64, ComplexF64)
+            A = AMDGPU.randn!(T, 10, 10, 10, 10)
+            @test isstrided(A)
+            B = StridedView(A)
+            @test B isa StridedView
+            @test B == A
+        end
+    end
+end