SWDEV-333557 - 1.Add support for IPC memory to enable hipIpcGetMemHandle() and hipIpcOpenMemHandle() in PAL path. Set interprocess flag for device allocations in HIP PAL. 2.Fix PAL IPC path with ResourceCache and SubAllocation 3.Minor fixes for IpcBuffer constructor and IpcAttach 4.Remove redundant checks that may go wrong

Change-Id: Ie9d99847c7c2c7b3b2aaefaaf60d23bf71b68635

rocclr/platform/memory.cpp

@@ -94,6 +94,7 @@ Memory::Memory(Context& context, Type type, Flags flags, size_t size, void* svmP
       vDev_(NULL),
       mapCount_(0),
       svmHostAddress_(svmPtr),
+      resOffset_(0),
       flagsEx_(0),
       lockMemoryOps_("Memory Ops Lock", true) {
   svmPtrCommited_ = (flags & CL_MEM_SVM_FINE_GRAIN_BUFFER) ? true : false;
@@ -117,6 +118,7 @@ Memory::Memory(Memory& parent, Flags flags, size_t origin, size_t size, Type typ
       vDev_(NULL),
       mapCount_(0),
       svmHostAddress_(parent.getSvmPtr()),
+      resOffset_(0),
       flagsEx_(0),
       lockMemoryOps_("Memory Ops Lock", true) {
   svmPtrCommited_ = parent.isSvmPtrCommited();

rocclr/platform/memory.hpp

@@ -194,6 +194,7 @@ class Memory : public amd::RuntimeObject {
   device::VirtualDevice* vDev_;  //!< Memory object belongs to a virtual device only
   std::atomic_uint mapCount_;    //!< Keep track of number of mappings for a memory object
   void* svmHostAddress_;         //!< svm host address;
+  size_t resOffset_;             //!< resource offset
   union {
     struct {
       uint32_t isParent_ : 1;          //!< This object is a parent
@@ -372,6 +373,10 @@ class Memory : public amd::RuntimeObject {
 
   void* getSvmPtr() const { return svmHostAddress_; }   //!< svm pointer accessor;
   void setSvmPtr(void* ptr) { svmHostAddress_ = ptr; }  //!< svm pointer setter;
+
+  size_t getOffset() const { return resOffset_; }         //!< resource offset accessor;
+  void setOffset(size_t offset) { resOffset_ = offset; }  //!< resource offset setter;
+
   bool isSvmPtrCommited() const {
     return svmPtrCommited_;
   }                        //!< svm host address committed accessor;
@@ -679,8 +684,9 @@ public:
 class IpcBuffer : public Buffer {
  public:
   IpcBuffer(Context& context, Flags flags, size_t offset, size_t size, const void* handle)
-    : Buffer(context, flags, offset, size), handle_(handle) {
+    : Buffer(context, flags, size), handle_(handle) {
     setIpcShared(true);
+    setOffset(offset);
   }
 
   virtual void initDeviceMemory();