wsl/libhsakmt: move IPC functions from device to thunk runtime

IPC use system memory, it has nothing to do with wddm device.

Reviewed-by: Flora Cui <flora.cui@amd.com>
Signed-off-by: tiancyin <tianci.yin@amd.com>

wddm/device.cpp

@@ -180,52 +180,6 @@ bool WDDMDevice::DestroyPagingQueue(void) {
   return false;
 }
 
-bool WDDMDevice::CommitSystemHeapSpaceIPC(void* addr, int64_t size, int &memfd, bool lock) {
-  int fd = -1;
-
-  if (memfd == -1) {
-    fd = memfd_create("rocr4wsl_gtt", MFD_CLOEXEC);
-    if (fd < 0) {
-      pr_err("memfd_create failed\n");
-      return false;
-    }
-
-    ftruncate(fd, size);
-  } else {
-    fd = memfd;
-  }
-
-  int32_t protFlags = PROT_READ | PROT_WRITE;
-  int32_t mapFlags = MAP_SHARED | MAP_FIXED | MAP_NORESERVE |
-      MAP_UNINITIALIZED | (lock ? MAP_LOCKED : 0);
-
-  void* paddr = mmap(addr, size, protFlags, mapFlags, fd, 0);
-  if (paddr == MAP_FAILED) {
-    pr_err("fail to commit %s addr = %p, paddr = %p\n", (lock ? "locked" : ""), addr, paddr);
-    if (memfd == -1)
-      close(fd);
-    return false;
-  }
-  assert(addr == paddr);
-
-  memfd = fd;
-
-  if (madvise(addr, size, MADV_DONTFORK))
-    pr_err("fail to set MADV_DONTFORK for addr = %p\n", addr);
-
-  return true;
-}
-
-bool WDDMDevice::DecommitSystemHeapSpaceIPC(void* addr, int64_t size, int &memfd) {
-  if (munmap(addr, size) != 0) {
-    pr_err("fail to unmap = %p \n", addr);
-    return false;
-  }
-  close(memfd);
-  memfd = -1;
-  return true;
-}
-
 void WDDMDevice::SetPowerOptimization(bool restore) {
   void *priv_data;
   int priv_size;
@@ -248,45 +202,6 @@ void WDDMDevice::SetPowerOptimization(bool restore) {
   thunk_proxy::DestroyPrivData(priv_data);
 }
 
-
-ErrorCode WDDMDevice::ReserveIPCSysMem(gpusize size,
-                                       gpusize *out_gpu_virt_addr, gpusize alignment,
-                                       int &memfd, bool lock) {
-  gpusize gpu_addr = 0;
-  ErrorCode code = ErrorCode::Success;
-
-  code = d3dthunk::ReserveGpuVirtualAddress(adapter_, size,
-                                            system_heap_space_start_,
-                                            system_heap_space_start_ + system_heap_space_size_,
-                                            &gpu_addr);
-  if (code != ErrorCode::Success)
-    return code;
-
-  if (!CommitSystemHeapSpaceIPC((void*)gpu_addr, size, memfd, lock)) {
-    d3dthunk::FreeGpuVirtualAddress(adapter_, gpu_addr, size);
-    code = ErrorCode::SyscallFail;
-  }
-
-  *out_gpu_virt_addr = (code == ErrorCode::Success) ? gpu_addr : 0;
-  return code;
-}
-
-ErrorCode WDDMDevice::FreeIPCSysMem(gpusize gpu_addr, gpusize size, int &memfd) {
-  auto code = ErrorCode::Success;
-
-  DecommitSystemHeapSpaceIPC((void *)gpu_addr, size, memfd);
-
-  d3dthunk::FreeGpuVirtualAddressArgs free_args{};
-  free_args.hAdapter = adapter_;
-  free_args.BaseAddress = gpu_addr;
-  free_args.Size = size;
-
-  code = d3dthunk::FreeGpuVirtualAddress(&free_args);
-
-  return code;
-}
-
-
 void WDDMDevice::UpdatePageFence(uint64_t fence_value) {
   uint64_t current = page_fence_value_.load();