104 lines
3.0 KiB
C++
Executable File
104 lines
3.0 KiB
C++
Executable File
/* Copyright 2015-2017 Philippe Tillet
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "triton/driver/stream.h"
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#include "triton/driver/buffer.h"
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#include "triton/driver/context.h"
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#include "triton/driver/dispatch.h"
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namespace triton
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{
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namespace driver
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{
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//
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buffer::buffer(driver::context* ctx, size_t size, CUdeviceptr cu, bool take_ownership)
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: polymorphic_resource(cu, take_ownership), context_(ctx), size_(size) { }
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buffer::buffer(driver::context* ctx, size_t size, cl_mem cl, bool take_ownership)
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: polymorphic_resource(cl, take_ownership), context_(ctx), size_(size) { }
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buffer::buffer(driver::context* ctx, size_t size, host_buffer_t hst, bool take_ownership)
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: polymorphic_resource(hst, take_ownership), context_(ctx), size_(size) { }
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driver::context* buffer::context() {
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return context_;
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}
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size_t buffer::size() {
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return size_;
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}
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buffer* buffer::create(driver::context* ctx, size_t size) {
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switch(ctx->backend()){
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case CUDA: return new cu_buffer(ctx, size);
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case OpenCL: return new ocl_buffer(ctx, size);
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case Host: return new host_buffer(ctx, size);
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default: throw std::runtime_error("unknown backend");
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}
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}
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//
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host_buffer::host_buffer(driver::context *context, size_t size)
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: buffer(context, size, host_buffer_t(), true){
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hst_->data = new char[size];
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}
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//
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ocl_buffer::ocl_buffer(driver::context* context, size_t size)
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: buffer(context, size, cl_mem(), true){
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cl_int err;
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*cl_ = dispatch::clCreateBuffer(*context->cl(), CL_MEM_READ_WRITE, size, NULL, &err);
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check(err);
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}
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//
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cu_buffer::cu_buffer(driver::context* context, size_t size)
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: buffer(context, size, CUdeviceptr(), true) {
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cu_context::context_switcher ctx_switch(*context_);
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dispatch::cuMemAlloc(&*cu_, size);
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}
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cu_buffer::cu_buffer(driver::context* context, size_t size, CUdeviceptr cu, bool take_ownership)
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: buffer(context, size, cu, take_ownership){
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}
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void cu_buffer::set_zero(driver::stream* queue, size_t size)
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{
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cu_context::context_switcher ctx_switch(*context_);
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dispatch::cuMemsetD8Async(*cu_, 0, size, *queue->cu());
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}
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}
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}
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