mirror of https://gitee.com/openkylin/linux.git
57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/*
|
|
* 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);
|
|
}
|