[SYCL] Fix regression in update_host (#15153)

Restores missed context analysis for host pointer update.
Regression is caused by
3dc75a7

---------

Signed-off-by: Tikhomirova, Kseniya <kseniya.tikhomirova@intel.com>

sycl/source/detail/buffer_impl.cpp

@@ -24,7 +24,7 @@ void *buffer_impl::allocateMem(ContextImplPtr Context, bool InitFromUserData,
                                void *HostPtr,
                                ur_event_handle_t &OutEventToWait) {
   bool HostPtrReadOnly = false;
-  BaseT::determineHostPtr(InitFromUserData, HostPtr, HostPtrReadOnly);
+  BaseT::determineHostPtr(Context, InitFromUserData, HostPtr, HostPtrReadOnly);
   assert(!(nullptr == HostPtr && BaseT::useHostPtr() && !Context) &&
          "Internal error. Allocating memory on the host "
          "while having use_host_ptr property");

sycl/source/detail/image_impl.cpp

@@ -327,7 +327,7 @@ void *image_impl::allocateMem(ContextImplPtr Context, bool InitFromUserData,
                               void *HostPtr,
                               ur_event_handle_t &OutEventToWait) {
   bool HostPtrReadOnly = false;
-  BaseT::determineHostPtr(InitFromUserData, HostPtr, HostPtrReadOnly);
+  BaseT::determineHostPtr(Context, InitFromUserData, HostPtr, HostPtrReadOnly);
 
   ur_image_desc_t Desc = getImageDesc(HostPtr != nullptr);
   assert(checkImageDesc(Desc, Context, HostPtr) &&

sycl/source/detail/sycl_mem_obj_t.cpp

@@ -107,7 +107,8 @@ SYCLMemObjT::SYCLMemObjT(ur_native_handle_t MemObject,
                sizeof(Context), &Context, nullptr);
 
   if (MInteropContext->getHandleRef() != Context)
-    throw sycl::exception(make_error_code(errc::invalid),
+    throw sycl::exception(
+        make_error_code(errc::invalid),
         "Input context must be the same as the context of cl_mem");
 
   if (MInteropContext->getBackend() == backend::opencl)
@@ -175,7 +176,8 @@ size_t SYCLMemObjT::getBufSizeForContext(const ContextImplPtr &Context,
 
 bool SYCLMemObjT::isInterop() const { return MOpenCLInterop; }
 
-void SYCLMemObjT::determineHostPtr(bool InitFromUserData, void *&HostPtr,
+void SYCLMemObjT::determineHostPtr(const ContextImplPtr &Context,
+                                   bool InitFromUserData, void *&HostPtr,
                                    bool &HostPtrReadOnly) {
   // The data for the allocation can be provided via either the user pointer
   // (InitFromUserData, can be read-only) or a runtime-allocated read-write
@@ -186,6 +188,8 @@ void SYCLMemObjT::determineHostPtr(bool InitFromUserData, void *&HostPtr,
   // 2. The allocation is not the first one and not on host. InitFromUserData ==
   // false, HostPtr is provided if the command is linked. The host pointer is
   // guaranteed to be reused in this case.
+  if (!Context && !MOpenCLInterop && !MHostPtrReadOnly)
+    InitFromUserData = true;
 
   if (InitFromUserData) {
     assert(!HostPtr && "Cannot init from user data and reuse host ptr provided "

sycl/source/detail/sycl_mem_obj_t.hpp

@@ -327,8 +327,8 @@ class SYCLMemObjT : public SYCLMemObjI {
 
 protected:
   // An allocateMem helper that determines which host ptr to use
-  void determineHostPtr(bool InitFromUserData, void *&HostPtr,
-                        bool &HostPtrReadOnly);
+  void determineHostPtr(const ContextImplPtr &Context, bool InitFromUserData,
+                        void *&HostPtr, bool &HostPtrReadOnly);
 
   // Allocator used for allocation memory on host.
   std::unique_ptr<SYCLMemObjAllocator> MAllocator;