[Beignet] [PATCH] add the usage of link program from llvm binary.
Zhigang Gong
zhigang.gong at linux.intel.com
Mon Jun 30 21:56:43 PDT 2014
Pushed with slight change.
Thanks.
On Fri, Jun 27, 2014 at 08:27:03AM +0800, xionghu.luo at intel.com wrote:
> From: Luo <xionghu.luo at intel.com>
>
> user A could compile and link kernel source to llvm binary first, then
> query the binary to save to file; With the binary, user B can call
> clCreateProgramWithBinary without compile the source again.
> this usage could protect those who need to protect the kernel source.
>
> Signed-off-by: Luo <xionghu.luo at intel.com>
> ---
> utests/runtime_compile_link.cpp | 41 ++++++++++++++++++++++++++++++++++++++---
> 1 file changed, 38 insertions(+), 3 deletions(-)
>
> diff --git a/utests/runtime_compile_link.cpp b/utests/runtime_compile_link.cpp
> index 8aeea31..f27b1dd 100644
> --- a/utests/runtime_compile_link.cpp
> +++ b/utests/runtime_compile_link.cpp
> @@ -67,12 +67,47 @@ void runtime_compile_link(void)
>
> OCL_ASSERT(err==CL_SUCCESS);
> cl_program input_programs[2] = { program_A, program_B};
> - cl_program linked_program = clLinkProgram(ctx, 0, NULL, NULL, 2, input_programs, NULL, NULL, &err);
> -
> + cl_program linked_program = clLinkProgram(ctx, 0, NULL, "-create-library", 2, input_programs, NULL, NULL, &err);
>
> OCL_ASSERT(linked_program != NULL);
> OCL_ASSERT(err == CL_SUCCESS);
> + size_t binarySize;
> + unsigned char *binary;
> +
> + // Get the size of the resulting binary (only one device)
> + err= clGetProgramInfo( linked_program, CL_PROGRAM_BINARY_SIZES, sizeof( binarySize ), &binarySize, NULL );
> + OCL_ASSERT(err==CL_SUCCESS);
> +
> + // Create a buffer and get the actual binary
> + binary = (unsigned char*)malloc(sizeof(unsigned char)*binarySize);
> + if (binary == NULL) {
> + OCL_ASSERT(0);
> + return ;
> + }
> +
> + unsigned char *buffers[ 1 ] = { binary };
> + // Do another sanity check here first
> + size_t size;
> + cl_int loadErrors[ 1 ];
> + err = clGetProgramInfo( linked_program, CL_PROGRAM_BINARIES, 0, NULL, &size );
> + OCL_ASSERT(err==CL_SUCCESS);
> + if( size != sizeof( buffers ) ){
> + free(binary);
> + return ;
> + }
> +
> + err = clGetProgramInfo( linked_program, CL_PROGRAM_BINARIES, sizeof( buffers ), &buffers, NULL );
> + OCL_ASSERT(err==CL_SUCCESS);
> +
> + cl_device_id deviceID;
> + err = clGetProgramInfo( linked_program, CL_PROGRAM_DEVICES, sizeof( deviceID), &deviceID, NULL );
> + OCL_ASSERT(err==CL_SUCCESS);
> +
> + cl_program program_with_binary = clCreateProgramWithBinary(ctx, 1, &deviceID, &binarySize, (const unsigned char**)buffers, loadErrors, &err);
> + OCL_ASSERT(err==CL_SUCCESS);
>
> + cl_program my_newly_linked_program = clLinkProgram(ctx, 1, &deviceID, NULL, 1, &program_with_binary, NULL, NULL, &err);
> + OCL_ASSERT(err==CL_SUCCESS);
> // link success, run this kernel.
>
> const size_t n = 16;
> @@ -104,7 +139,7 @@ void runtime_compile_link(void)
> OCL_UNMAP_BUFFER(0);
> OCL_UNMAP_BUFFER(1);
>
> - kernel = clCreateKernel(linked_program, "runtime_compile_link_a", &err);
> + kernel = clCreateKernel(my_newly_linked_program, "runtime_compile_link_a", &err);
>
> OCL_ASSERT(err == CL_SUCCESS);
>
> --
> 1.8.1.2
>
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