[Beignet] [PATCH 0/5] Add support for kernel debugging

[Mircea Gherzan]

This patch series enables debugging OpenCL Beignet shaders with the GDB port
for Intel(R) GPUs.
	
Enabling debugging in the Beignet codebase involves:
* checking if the debugger is present
* setting a breakpoint on the first instruction of a kernel,
* getting the "debug system routine" that dumps the content of the EU registers
  to a "debug surface" once a breakpoint is encountered in the shader,
* setting up the BOs for the system routine and for the debug surface,
* writing the right MMIO registers (via batch buffer commands) in order
  to enable the shader debug in the hardware.
* notifying the debugger infrastructure that a certain kernel is under debug,
  in order to prevent the "Debug Companion Driver" from auto-resuming
  the kernel.

The interaction with the debugger is done via the debugger interchange library.
This library as well as other debugger open-source components (the kernel driver,
libraries, GDB) are delivered in the Intel(R) Parallel Studio XE.

Tested on HSW, BDW and SKL.

Mircea Gherzan (5):
  backend: add support for kernel debugging
  runtime: add support for the interchange library of the debugger
  runtime: use the "-debug" build option if the debugger is active
  runtime: set the kernel name in the cl_gpgpu_kernel structure
  runtime: support for the debug system routine, surface and MMIO
    registers

 backend/src/backend/context.cpp     |   4 +-
 backend/src/backend/context.hpp     |   4 +-
 backend/src/backend/gen_context.cpp |  12 ++-
 backend/src/backend/gen_context.hpp |   2 +-
 backend/src/backend/gen_program.cpp |   7 +-
 backend/src/backend/gen_program.hpp |   8 +-
 backend/src/backend/program.cpp     |   5 +-
 src/CMakeLists.txt                  |   1 +
 src/cl_command_queue_gen7.c         |   6 +-
 src/cl_context.c                    |   4 +
 src/cl_context.h                    |   2 +
 src/cl_driver.h                     |   4 +
 src/cl_driver_defs.c                |   2 +-
 src/cl_program.c                    |  40 ++++++++
 src/intel/intel_debugger.c          | 158 +++++++++++++++++++++++++++++
 src/intel/intel_debugger.h          |  70 +++++++++++++
 src/intel/intel_defines.h           |  11 +++
 src/intel/intel_gpgpu.c             | 192 ++++++++++++++++++++++++++++++++++--
 src/intel/intel_gpgpu.h             |   7 ++
 19 files changed, 516 insertions(+), 23 deletions(-)
 create mode 100644 src/intel/intel_debugger.c
 create mode 100644 src/intel/intel_debugger.h

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1.8.3.1