[Beignet] [PATCH] fix clGetKernelWorkGroupInfo built-in kernel fail.

Zhigang Gong zhigang.gong at linux.intel.com
Wed Sep 10 20:56:56 PDT 2014


function cl_check_builtin_kernel_dimension() should be a static function
which only is used within cl_device_id.c.
The other part LGTM.

I will change it before push, no need for a new version.

On Wed, Sep 10, 2014 at 11:31:32AM +0800, xionghu.luo at intel.com wrote:
> From: Luo Xionghu <xionghu.luo at intel.com>
> 
> add CL_KERNEL_GLOBAL_WORK_SIZE option for clGetKernelWorkGroupInfo.
> 
> v2: should return the max global work size instead of current work size.
> This funtion need return CL_INVALID_VALUE if the device is not a custom
> device or kernel is not a built-in kernel.
> we have 3 kind of built-in kernels for 1d/2d/3d memories, the max global
> work size are decided by the dimension and memory type.
> the piglit fail is caused by calling NON built-in kernels, so need send
> patch to piglit later.
> 
> Signed-off-by: Luo Xionghu <xionghu.luo at intel.com>
> ---
>  src/cl_device_id.c                        |   34 +++++++++++++++++++++++++++++
>  src/cl_device_id.h                        |    3 +++
>  src/cl_gt_device.h                        |    3 +++
>  src/cl_kernel.h                           |    2 ++
>  utests/CMakeLists.txt                     |    1 +
>  utests/builtin_kernel_max_global_size.cpp |   30 +++++++++++++++++++++++++
>  6 files changed, 73 insertions(+)
>  create mode 100644 utests/builtin_kernel_max_global_size.cpp
> 
> diff --git a/src/cl_device_id.c b/src/cl_device_id.c
> index a0f0c99..5b24fcb 100644
> --- a/src/cl_device_id.c
> +++ b/src/cl_device_id.c
> @@ -515,6 +515,22 @@ cl_device_get_version(cl_device_id device, cl_int *ver)
>  
>  #include "cl_kernel.h"
>  #include "cl_program.h"
> +LOCAL int
> +cl_check_builtin_kernel_dimension(cl_kernel kernel, cl_device_id device)
> +{
> +  const char * n = cl_kernel_get_name(kernel);
> +  const char * builtin_kernels_2d = "__cl_copy_image_2d_to_2d;__cl_copy_image_2d_to_buffer;__cl_copy_buffer_to_image_2d;__cl_fill_image_2d;__cl_fill_image_2d_array;";
> +  const char * builtin_kernels_3d = "__cl_copy_image_3d_to_2d;__cl_copy_image_2d_to_3d;__cl_copy_image_3d_to_3d;__cl_copy_image_3d_to_buffer;__cl_copy_buffer_to_image_3d;__cl_fill_image_3d";
> +    if (!strstr(device->built_in_kernels, n)){
> +      return 0;
> +    }else if(strstr(builtin_kernels_2d, n)){
> +      return 2;
> +    }else if(strstr(builtin_kernels_3d, n)){
> +      return 3;
> +    }else
> +      return 1;
> +
> +}
>  
>  LOCAL size_t
>  cl_get_kernel_max_wg_sz(cl_kernel kernel)
> @@ -543,6 +559,7 @@ cl_get_kernel_workgroup_info(cl_kernel kernel,
>                               size_t* param_value_size_ret)
>  {
>    int err = CL_SUCCESS;
> +  int dimension = 0;
>    if (UNLIKELY(device != &intel_ivb_gt1_device &&
>                 device != &intel_ivb_gt2_device &&
>                 device != &intel_baytrail_t_device &&
> @@ -573,6 +590,23 @@ cl_get_kernel_workgroup_info(cl_kernel kernel,
>      }
>      DECL_FIELD(COMPILE_WORK_GROUP_SIZE, kernel->compile_wg_sz)
>      DECL_FIELD(PRIVATE_MEM_SIZE, kernel->stack_size)
> +    case CL_KERNEL_GLOBAL_WORK_SIZE:
> +      dimension = cl_check_builtin_kernel_dimension(kernel, device);
> +      if ( !dimension ) return CL_INVALID_VALUE;
> +      if (param_value_size_ret != NULL)
> +        *param_value_size_ret = sizeof(device->max_1d_global_work_sizes);
> +      if (param_value) {
> +        if (dimension == 1) {
> +          memcpy(param_value, device->max_1d_global_work_sizes, sizeof(device->max_1d_global_work_sizes));
> +        }else if(dimension == 2){
> +          memcpy(param_value, device->max_2d_global_work_sizes, sizeof(device->max_2d_global_work_sizes));
> +        }else if(dimension == 3){
> +          memcpy(param_value, device->max_3d_global_work_sizes, sizeof(device->max_3d_global_work_sizes));
> +        }else
> +          return CL_INVALID_VALUE;
> +
> +        return CL_SUCCESS;
> +      }
>      default:
>        return CL_INVALID_VALUE;
>    };
> diff --git a/src/cl_device_id.h b/src/cl_device_id.h
> index c4f8227..31bce47 100644
> --- a/src/cl_device_id.h
> +++ b/src/cl_device_id.h
> @@ -30,6 +30,9 @@ struct _cl_device_id {
>    cl_uint  max_work_item_dimensions;       // should be 3.
>    size_t   max_work_item_sizes[3];         // equal to maximum work group size.
>    size_t   max_work_group_size;            // maximum work group size under simd16 mode.
> +  size_t   max_1d_global_work_sizes[3];       // maximum 1d global work size for builtin kernels.
> +  size_t   max_2d_global_work_sizes[3];       // maximum 2d global work size for builtin kernels.
> +  size_t   max_3d_global_work_sizes[3];       // maximum 3d global work size for builtin kernels.
>    cl_uint  preferred_vector_width_char;
>    cl_uint  preferred_vector_width_short;
>    cl_uint  preferred_vector_width_int;
> diff --git a/src/cl_gt_device.h b/src/cl_gt_device.h
> index 33ef1f0..3cd54eb 100644
> --- a/src/cl_gt_device.h
> +++ b/src/cl_gt_device.h
> @@ -21,6 +21,9 @@
>  .device_type = CL_DEVICE_TYPE_GPU,
>  .vendor_id = 0, /* == device_id (set when requested) */
>  .max_work_item_dimensions = 3,
> +.max_1d_global_work_sizes = {1024 * 1024 * 256, 1, 1},
> +.max_2d_global_work_sizes = {8192, 8192, 1},
> +.max_3d_global_work_sizes = {8192, 8192, 2048},
>  .preferred_vector_width_char = 8,
>  .preferred_vector_width_short = 8,
>  .preferred_vector_width_int = 4,
> diff --git a/src/cl_kernel.h b/src/cl_kernel.h
> index f4ed8d3..85a997d 100644
> --- a/src/cl_kernel.h
> +++ b/src/cl_kernel.h
> @@ -59,6 +59,8 @@ struct _cl_kernel {
>    cl_ulong local_mem_sz;      /* local memory size specified in kernel args. */
>    size_t compile_wg_sz[3];    /* Required workgroup size by __attribute__((reqd_work_gro
>                                   up_size(X, Y, Z))) qualifier.*/
> +  size_t global_work_sz[3];    /* maximum global size that can be used to execute a kernel
> +                                (i.e. global_work_size argument to clEnqueueNDRangeKernel.)*/
>    size_t stack_size;          /* stack size per work item. */
>    cl_argument *args;          /* To track argument setting */
>    uint32_t arg_n:31;          /* Number of arguments */
> diff --git a/utests/CMakeLists.txt b/utests/CMakeLists.txt
> index b30e6f9..034f112 100644
> --- a/utests/CMakeLists.txt
> +++ b/utests/CMakeLists.txt
> @@ -181,6 +181,7 @@ set (utests_sources
>    test_printf.cpp
>    enqueue_fill_buf.cpp
>    enqueue_built_in_kernels.cpp
> +  builtin_kernel_max_global_size.cpp
>    image_1D_buffer.cpp
>    compare_image_2d_and_1d_array.cpp
>    compiler_constant_expr.cpp
> diff --git a/utests/builtin_kernel_max_global_size.cpp b/utests/builtin_kernel_max_global_size.cpp
> new file mode 100644
> index 0000000..c777564
> --- /dev/null
> +++ b/utests/builtin_kernel_max_global_size.cpp
> @@ -0,0 +1,30 @@
> +#include "utest_helper.hpp"
> +
> +void builtin_kernel_max_global_size(void)
> +{
> +  char* built_in_kernel_names;
> +  size_t built_in_kernels_size;
> +  cl_int err = CL_SUCCESS;
> +  size_t ret_sz;
> +
> +
> +  OCL_CALL (clGetDeviceInfo, device, CL_DEVICE_BUILT_IN_KERNELS, 0, 0, &built_in_kernels_size);
> +  built_in_kernel_names = (char* )malloc(built_in_kernels_size * sizeof(char) );
> +  OCL_CALL(clGetDeviceInfo, device, CL_DEVICE_BUILT_IN_KERNELS, built_in_kernels_size, (void*)built_in_kernel_names, &ret_sz);
> +  OCL_ASSERT(ret_sz == built_in_kernels_size);
> +  cl_program built_in_prog = clCreateProgramWithBuiltInKernels(ctx, 1, &device, built_in_kernel_names, &err);
> +  OCL_ASSERT(built_in_prog != NULL);
> +  cl_kernel builtin_kernel_1d = clCreateKernel(built_in_prog, "__cl_copy_region_unalign_src_offset",  &err);
> +  OCL_ASSERT(builtin_kernel_1d != NULL);
> +  size_t param_value_size;
> +  void* param_value;
> +  clGetKernelWorkGroupInfo(builtin_kernel_1d, device, CL_KERNEL_GLOBAL_WORK_SIZE, 0, NULL, &param_value_size);
> +  param_value = malloc(param_value_size);
> +  clGetKernelWorkGroupInfo(builtin_kernel_1d, device, CL_KERNEL_GLOBAL_WORK_SIZE, param_value_size, param_value, 0);
> +  OCL_ASSERT(*(size_t*)param_value == 256 * 1024 *1024);
> +  clReleaseKernel(builtin_kernel_1d);
> +  clReleaseProgram(built_in_prog);
> +  free(param_value);
> +}
> +
> +MAKE_UTEST_FROM_FUNCTION(builtin_kernel_max_global_size);
> -- 
> 1.7.9.5
> 
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