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1 | /* |
2 | * Copyright 2014 Advanced Micro Devices, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | */ | |
23 | ||
24 | #ifndef KFD_KERNEL_QUEUE_H_ | |
25 | #define KFD_KERNEL_QUEUE_H_ | |
26 | ||
27 | #include <linux/list.h> | |
28 | #include <linux/types.h> | |
29 | #include "kfd_priv.h" | |
30 | ||
31 | struct kernel_queue { | |
32 | /* interface */ | |
33 | bool (*initialize)(struct kernel_queue *kq, struct kfd_dev *dev, | |
34 | enum kfd_queue_type type, unsigned int queue_size); | |
35 | void (*uninitialize)(struct kernel_queue *kq); | |
36 | int (*acquire_packet_buffer)(struct kernel_queue *kq, | |
37 | size_t packet_size_in_dwords, | |
38 | unsigned int **buffer_ptr); | |
39 | ||
40 | void (*submit_packet)(struct kernel_queue *kq); | |
41 | int (*sync_with_hw)(struct kernel_queue *kq, | |
42 | unsigned long timeout_ms); | |
43 | void (*rollback_packet)(struct kernel_queue *kq); | |
44 | ||
45 | /* data */ | |
46 | struct kfd_dev *dev; | |
47 | struct mqd_manager *mqd; | |
48 | struct queue *queue; | |
49 | uint32_t pending_wptr; | |
50 | unsigned int nop_packet; | |
51 | ||
52 | struct kfd_mem_obj *rptr_mem; | |
53 | uint32_t *rptr_kernel; | |
54 | uint64_t rptr_gpu_addr; | |
55 | struct kfd_mem_obj *wptr_mem; | |
56 | uint32_t *wptr_kernel; | |
57 | uint64_t wptr_gpu_addr; | |
58 | struct kfd_mem_obj *pq; | |
59 | uint64_t pq_gpu_addr; | |
60 | uint32_t *pq_kernel_addr; | |
61 | ||
62 | struct kfd_mem_obj *fence_mem_obj; | |
63 | uint64_t fence_gpu_addr; | |
64 | void *fence_kernel_address; | |
65 | ||
66 | struct list_head list; | |
67 | }; | |
68 | ||
69 | #endif /* KFD_KERNEL_QUEUE_H_ */ |