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a5a4d68c93
Up to this point, those functions are all the same for all ASICs, so no need to call them by functions pointers. Removing the function pointers will greatly increase the code readablity. If there is ever need for those function pointers, we can add it back then. Signed-off-by: Yong Zhao <Yong.Zhao@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* 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, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#ifndef KFD_KERNEL_QUEUE_H_
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#define KFD_KERNEL_QUEUE_H_
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#include <linux/list.h>
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#include <linux/types.h>
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#include "kfd_priv.h"
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/**
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* kq_acquire_packet_buffer: Returns a pointer to the location in the kernel
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* queue ring buffer where the calling function can write its packet. It is
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* Guaranteed that there is enough space for that packet. It also updates the
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* pending write pointer to that location so subsequent calls to
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* acquire_packet_buffer will get a correct write pointer
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*
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* kq_submit_packet: Update the write pointer and doorbell of a kernel queue.
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*
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* kq_rollback_packet: This routine is called if we failed to build an acquired
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* packet for some reason. It just overwrites the pending wptr with the current
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* one
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*
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*/
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int kq_acquire_packet_buffer(struct kernel_queue *kq,
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size_t packet_size_in_dwords,
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unsigned int **buffer_ptr);
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void kq_submit_packet(struct kernel_queue *kq);
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void kq_rollback_packet(struct kernel_queue *kq);
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struct kernel_queue {
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/* data */
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struct kfd_dev *dev;
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struct mqd_manager *mqd_mgr;
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struct queue *queue;
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uint64_t pending_wptr64;
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uint32_t pending_wptr;
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unsigned int nop_packet;
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struct kfd_mem_obj *rptr_mem;
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uint32_t *rptr_kernel;
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uint64_t rptr_gpu_addr;
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struct kfd_mem_obj *wptr_mem;
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union {
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uint64_t *wptr64_kernel;
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uint32_t *wptr_kernel;
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};
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uint64_t wptr_gpu_addr;
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struct kfd_mem_obj *pq;
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uint64_t pq_gpu_addr;
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uint32_t *pq_kernel_addr;
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struct kfd_mem_obj *eop_mem;
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uint64_t eop_gpu_addr;
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uint32_t *eop_kernel_addr;
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struct kfd_mem_obj *fence_mem_obj;
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uint64_t fence_gpu_addr;
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void *fence_kernel_address;
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struct list_head list;
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};
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#endif /* KFD_KERNEL_QUEUE_H_ */
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