add test for cl buffer created with CL_MEM_USE_HOST_PTR

Signed-off-by: Guo Yejun <yejun.guo@intel.com>
Reviewed-by: Zhigang Gong  <zhigang.gong@linux.intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/utests/runtime_use_host_ptr_buffer.cpp b/utests/runtime_use_host_ptr_buffer.cpp
new file mode 100644
index 00000000..ca06f4be
--- /dev/null
+++ b/utests/runtime_use_host_ptr_buffer.cpp
@@ -0,0 +1,36 @@
+#include "utest_helper.hpp"
+
+static void runtime_use_host_ptr_buffer(void)
+{
+  const size_t n = 4096*100;
+
+  // Setup kernel and buffers
+  OCL_CREATE_KERNEL("runtime_use_host_ptr_buffer");
+  buf_data[0] = (uint32_t*) aligned_alloc(4096, sizeof(uint32_t) * n);
+  for (uint32_t i = 0; i < n; ++i) ((uint32_t*)buf_data[0])[i] = i;
+  OCL_CREATE_BUFFER(buf[0], CL_MEM_USE_HOST_PTR, n * sizeof(uint32_t), buf_data[0]);
+
+  // Run the kernel
+  OCL_SET_ARG(0, sizeof(cl_mem), &buf[0]);
+  globals[0] = n;
+  locals[0] = 256;
+  OCL_NDRANGE(1);
+
+  // Check result
+
+#ifdef HAS_USERPTR
+  OCL_FINISH();
+#else
+  void* mapptr = (int*)clEnqueueMapBuffer(queue, buf[0], CL_TRUE, CL_MAP_READ, 0, n*sizeof(uint32_t), 0, NULL, NULL, NULL);
+  OCL_ASSERT(mapptr == buf_data[0]);
+  clEnqueueUnmapMemObject(queue, buf[0], mapptr, 0, NULL, NULL);
+#endif
+
+  for (uint32_t i = 0; i < n; ++i)
+    OCL_ASSERT(((uint32_t*)buf_data[0])[i] == i / 2);
+
+  free(buf_data[0]);
+  buf_data[0] = NULL;
+}
+
+MAKE_UTEST_FROM_FUNCTION(runtime_use_host_ptr_buffer);