shared_external mermory add xpu (#53240)

paddle/fluid/inference/api/details/zero_copy_tensor.cc

@@ -345,9 +345,16 @@ void Tensor::ShareExternalData(const T *data,
             const_cast<T *>(data), size, paddle::platform::CUDAPlace(device_)),
         meta);
     *tensor = std::move(dtensor);
+  } else if (place == PlaceType::kXPU) {
+    phi::DenseTensor dtensor(
+        std::make_shared<phi::Allocation>(
+            const_cast<T *>(data), size, paddle::platform::XPUPlace(device_)),
+        meta);
+    *tensor = std::move(dtensor);
   } else {
     PADDLE_THROW(paddle::platform::errors::InvalidArgument(
-        "PlaceType must be PlaceType::kCPU or PlaceType::kGPU."));
+        "PlaceType must be one of [PlaceType::kCPU, PlaceType::kGPU, "
+        "PlaceType::kXPU]."));
   }
 }
 

paddle/phi/kernels/xpu/linspace_kernel.cc

@@ -81,4 +81,8 @@ void LinspaceKernel(const Context& ctx,
 }  // namespace phi
 
 PD_REGISTER_KERNEL(
-    linspace, XPU, ALL_LAYOUT, phi::LinspaceKernel, float, int32_t) {}
+    linspace, XPU, ALL_LAYOUT, phi::LinspaceKernel, float, int32_t) {
+  kernel->InputAt(0).SetBackend(phi::Backend::ALL_BACKEND);
+  kernel->InputAt(1).SetBackend(phi::Backend::ALL_BACKEND);
+  kernel->InputAt(2).SetBackend(phi::Backend::ALL_BACKEND);
+}