** fully decouple kernel compilation from kernel launch for opencl

changes required to do this (this enables oclReduction SDK 3.1 to pass
and is a prerequisite to Fermi style concurrent kernel launching)
- separate kernel launch for cuda and opencl (and init_grid functions)
- add pgm_info structure for holding kernel function_info pointer in
  _cl_program object after ptx compilation

** added support for clEnqueueNDRangeKernel with local_work_size==NULL
which is part of OpenCL spec and used in oclSortingNetworks (however, 
this is a braindead implementation that only handles the case where
global_work_size[0] is smaller than the max number of threads per
shader; moreover oclSortingNetworks is still not working but for what
looks like another reason)

** refactoring / cleanup
- g_global_symbol_table made static to ptx_parser.cc
- remove g_kernel_name_to_symtab_lookup (not really being used)
- moving various function prototypes into headers (e.g., if foo() defined
in bar.cc, then place prototype in bar.h)
- adding icnt_reg_options()

[git-p4: depot-paths = "//depot/gpgpu_sim_research/fermi/distribution/": change = 7168]

1 files changed, 1 insertions, 0 deletions

diff --git a/src/cuda-sim/ptx_loader.h b/src/cuda-sim/ptx_loader.h
index 33c6dc9..95130f1 100644
--- a/src/cuda-sim/ptx_loader.h
+++ b/src/cuda-sim/ptx_loader.h
@@ -76,5 +76,6 @@ extern bool g_override_embedded_ptx;
  
 void gpgpu_ptx_sim_load_gpu_kernels();
 void gpgpu_ptx_sim_add_ptxstring( const char *ptx_string, const char *sourcefname );
+class symbol_table *gpgpu_ptx_sim_load_ptx_from_string( const char *p, unsigned source_num );
 
 #endif