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/*
* 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);
}
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