1 /* SPDX-License-Identifier: (GPL-2.0 WITH Linux-syscall-note) OR MIT */
3 * Copyright 2021 Advanced Micro Devices, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
24 #ifndef KFD_SYSFS_H_INCLUDED
25 #define KFD_SYSFS_H_INCLUDED
27 /* Capability bits in node properties */
28 #define HSA_CAP_HOT_PLUGGABLE 0x00000001
29 #define HSA_CAP_ATS_PRESENT 0x00000002
30 #define HSA_CAP_SHARED_WITH_GRAPHICS 0x00000004
31 #define HSA_CAP_QUEUE_SIZE_POW2 0x00000008
32 #define HSA_CAP_QUEUE_SIZE_32BIT 0x00000010
33 #define HSA_CAP_QUEUE_IDLE_EVENT 0x00000020
34 #define HSA_CAP_VA_LIMIT 0x00000040
35 #define HSA_CAP_WATCH_POINTS_SUPPORTED 0x00000080
36 #define HSA_CAP_WATCH_POINTS_TOTALBITS_MASK 0x00000f00
37 #define HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT 8
38 #define HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK 0x00003000
39 #define HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT 12
41 #define HSA_CAP_DOORBELL_TYPE_PRE_1_0 0x0
42 #define HSA_CAP_DOORBELL_TYPE_1_0 0x1
43 #define HSA_CAP_DOORBELL_TYPE_2_0 0x2
44 #define HSA_CAP_AQL_QUEUE_DOUBLE_MAP 0x00004000
46 /* Old buggy user mode depends on this being 0 */
47 #define HSA_CAP_RESERVED_WAS_SRAM_EDCSUPPORTED 0x00080000
49 #define HSA_CAP_MEM_EDCSUPPORTED 0x00100000
50 #define HSA_CAP_RASEVENTNOTIFY 0x00200000
51 #define HSA_CAP_ASIC_REVISION_MASK 0x03c00000
52 #define HSA_CAP_ASIC_REVISION_SHIFT 22
53 #define HSA_CAP_SRAM_EDCSUPPORTED 0x04000000
54 #define HSA_CAP_SVMAPI_SUPPORTED 0x08000000
55 #define HSA_CAP_FLAGS_COHERENTHOSTACCESS 0x10000000
56 #define HSA_CAP_RESERVED 0xe00f8000
58 /* Heap types in memory properties */
59 #define HSA_MEM_HEAP_TYPE_SYSTEM 0
60 #define HSA_MEM_HEAP_TYPE_FB_PUBLIC 1
61 #define HSA_MEM_HEAP_TYPE_FB_PRIVATE 2
62 #define HSA_MEM_HEAP_TYPE_GPU_GDS 3
63 #define HSA_MEM_HEAP_TYPE_GPU_LDS 4
64 #define HSA_MEM_HEAP_TYPE_GPU_SCRATCH 5
66 /* Flag bits in memory properties */
67 #define HSA_MEM_FLAGS_HOT_PLUGGABLE 0x00000001
68 #define HSA_MEM_FLAGS_NON_VOLATILE 0x00000002
69 #define HSA_MEM_FLAGS_RESERVED 0xfffffffc
71 /* Cache types in cache properties */
72 #define HSA_CACHE_TYPE_DATA 0x00000001
73 #define HSA_CACHE_TYPE_INSTRUCTION 0x00000002
74 #define HSA_CACHE_TYPE_CPU 0x00000004
75 #define HSA_CACHE_TYPE_HSACU 0x00000008
76 #define HSA_CACHE_TYPE_RESERVED 0xfffffff0
78 /* Link types in IO link properties (matches CRAT link types) */
79 #define HSA_IOLINK_TYPE_UNDEFINED 0
80 #define HSA_IOLINK_TYPE_HYPERTRANSPORT 1
81 #define HSA_IOLINK_TYPE_PCIEXPRESS 2
82 #define HSA_IOLINK_TYPE_AMBA 3
83 #define HSA_IOLINK_TYPE_MIPI 4
84 #define HSA_IOLINK_TYPE_QPI_1_1 5
85 #define HSA_IOLINK_TYPE_RESERVED1 6
86 #define HSA_IOLINK_TYPE_RESERVED2 7
87 #define HSA_IOLINK_TYPE_RAPID_IO 8
88 #define HSA_IOLINK_TYPE_INFINIBAND 9
89 #define HSA_IOLINK_TYPE_RESERVED3 10
90 #define HSA_IOLINK_TYPE_XGMI 11
91 #define HSA_IOLINK_TYPE_XGOP 12
92 #define HSA_IOLINK_TYPE_GZ 13
93 #define HSA_IOLINK_TYPE_ETHERNET_RDMA 14
94 #define HSA_IOLINK_TYPE_RDMA_OTHER 15
95 #define HSA_IOLINK_TYPE_OTHER 16
97 /* Flag bits in IO link properties (matches CRAT flags, excluding the
98 * bi-directional flag, which is not offially part of the CRAT spec, and
99 * only used internally in KFD)
101 #define HSA_IOLINK_FLAGS_ENABLED (1 << 0)
102 #define HSA_IOLINK_FLAGS_NON_COHERENT (1 << 1)
103 #define HSA_IOLINK_FLAGS_NO_ATOMICS_32_BIT (1 << 2)
104 #define HSA_IOLINK_FLAGS_NO_ATOMICS_64_BIT (1 << 3)
105 #define HSA_IOLINK_FLAGS_NO_PEER_TO_PEER_DMA (1 << 4)
106 #define HSA_IOLINK_FLAGS_RESERVED 0xffffffe0