unbind implementation

3 files changed, 15 insertions, 3 deletions

diff --git a/libcuda/cuda_runtime_api.cc b/libcuda/cuda_runtime_api.cc
index e3c2542..d971222 100644
--- a/libcuda/cuda_runtime_api.cc
+++ b/libcuda/cuda_runtime_api.cc
@@ -989,9 +989,14 @@ __host__ cudaError_t CUDARTAPI cudaBindTextureToArray(const struct textureRefere
 	return g_last_cudaError = cudaSuccess;
 }
 
-__host__ cudaError_t CUDARTAPI cudaUnbindTexture(const struct textureReference *texref)
-{
-	return g_last_cudaError = cudaSuccess;
+__host__ cudaError_t CUDARTAPI cudaUnbindTexture(const struct textureReference *texref)                                                                               {
+   CUctx_st *context = GPGPUSim_Context();
+   gpgpu_t *gpu = context->get_device()->get_gpgpu();
+   printf("GPGPU-Sim PTX: in cudaUnbindTexture: sizeof(struct textureReference) = %zu\n", sizeof(struct textureReference));
+   printf("GPGPU-Sim PTX:   Name corresponding to textureReference: %s\n", gpu->gpgpu_ptx_sim_findNamefromTexture(texref));
+
+   gpu->gpgpu_ptx_sim_unbindTexture(texref);
+   return g_last_cudaError = cudaSuccess;
 }
 
 __host__ cudaError_t CUDARTAPI cudaGetTextureAlignmentOffset(size_t *offset, const struct textureReference *texref)
diff --git a/src/abstract_hardware_model.h b/src/abstract_hardware_model.h
index f5708bc..ab94ded 100644
--- a/src/abstract_hardware_model.h
+++ b/src/abstract_hardware_model.h
@@ -512,6 +512,7 @@ public:
 
     void gpgpu_ptx_sim_bindTextureToArray(const struct textureReference* texref, const struct cudaArray* array);
     void gpgpu_ptx_sim_bindNameToTexture(const char* name, const struct textureReference* texref, int dim, int readmode, int ext);
+    void gpgpu_ptx_sim_unbindTexture(const struct textureReference* texref);
     const char* gpgpu_ptx_sim_findNamefromTexture(const struct textureReference* texref);
 
     const struct textureReference* get_texref(const std::string &texname) const
diff --git a/src/cuda-sim/cuda-sim.cc b/src/cuda-sim/cuda-sim.cc
index 946043a..6125422 100644
--- a/src/cuda-sim/cuda-sim.cc
+++ b/src/cuda-sim/cuda-sim.cc
@@ -183,6 +183,12 @@ void gpgpu_t::gpgpu_ptx_sim_bindTextureToArray(const struct textureReference* te
    m_TextureRefToTexureInfo[texref] = texInfo;
 }
 
+void gpgpu_t::gpgpu_ptx_sim_unbindTexture(const struct textureReference* texref)
+{
+   m_TextureRefToCudaArray.erase(texref);
+   m_TextureRefToTexureInfo.erase(texref);
+}
+
 unsigned g_assemble_code_next_pc=0; 
 std::map<unsigned,function_info*> g_pc_to_finfo;
 std::vector<ptx_instruction*> function_info::s_g_pc_to_insn;