/* * Copyright 2014 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * */ #include "kfd_kernel_queue.h" static bool initialize_vi(struct kernel_queue *kq, struct kfd_dev *dev, enum kfd_queue_type type, unsigned int queue_size); static void uninitialize_vi(struct kernel_queue *kq); void kernel_queue_init_vi(struct kernel_queue_ops *ops) { ops->initialize = initialize_vi; ops->uninitialize = uninitialize_vi; } static bool initialize_vi(struct kernel_queue *kq, struct kfd_dev *dev, enum kfd_queue_type type, unsigned int queue_size) { int retval; retval = kfd_gtt_sa_allocate(dev, PAGE_SIZE, &kq->eop_mem); if (retval != 0) return false; kq->eop_gpu_addr = kq->eop_mem->gpu_addr; kq->eop_kernel_addr = kq->eop_mem->cpu_ptr; memset(kq->eop_kernel_addr, 0, PAGE_SIZE); return true; } static void uninitialize_vi(struct kernel_queue *kq) { kfd_gtt_sa_free(kq->dev, kq->eop_mem); }