2 * Copyright 2014 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
23 #ifndef __KFD_TOPOLOGY_H__
24 #define __KFD_TOPOLOGY_H__
26 #include <linux/types.h>
27 #include <linux/list.h>
30 #define KFD_TOPOLOGY_PUBLIC_NAME_SIZE 128
32 #define HSA_CAP_HOT_PLUGGABLE 0x00000001
33 #define HSA_CAP_ATS_PRESENT 0x00000002
34 #define HSA_CAP_SHARED_WITH_GRAPHICS 0x00000004
35 #define HSA_CAP_QUEUE_SIZE_POW2 0x00000008
36 #define HSA_CAP_QUEUE_SIZE_32BIT 0x00000010
37 #define HSA_CAP_QUEUE_IDLE_EVENT 0x00000020
38 #define HSA_CAP_VA_LIMIT 0x00000040
39 #define HSA_CAP_WATCH_POINTS_SUPPORTED 0x00000080
40 #define HSA_CAP_WATCH_POINTS_TOTALBITS_MASK 0x00000f00
41 #define HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT 8
42 #define HSA_CAP_RESERVED 0xfffff000
44 struct kfd_node_properties {
45 uint32_t cpu_cores_count;
47 uint32_t mem_banks_count;
48 uint32_t caches_count;
49 uint32_t io_links_count;
50 uint32_t cpu_core_id_base;
51 uint32_t simd_id_base;
53 uint32_t max_waves_per_simd;
54 uint32_t lds_size_in_kb;
55 uint32_t gds_size_in_kb;
56 uint32_t wave_front_size;
58 uint32_t simd_arrays_per_engine;
59 uint32_t cu_per_simd_array;
61 uint32_t max_slots_scratch_cu;
66 uint32_t max_engine_clk_fcompute;
67 uint32_t max_engine_clk_ccompute;
68 uint16_t marketing_name[KFD_TOPOLOGY_PUBLIC_NAME_SIZE];
71 #define HSA_MEM_HEAP_TYPE_SYSTEM 0
72 #define HSA_MEM_HEAP_TYPE_FB_PUBLIC 1
73 #define HSA_MEM_HEAP_TYPE_FB_PRIVATE 2
74 #define HSA_MEM_HEAP_TYPE_GPU_GDS 3
75 #define HSA_MEM_HEAP_TYPE_GPU_LDS 4
76 #define HSA_MEM_HEAP_TYPE_GPU_SCRATCH 5
78 #define HSA_MEM_FLAGS_HOT_PLUGGABLE 0x00000001
79 #define HSA_MEM_FLAGS_NON_VOLATILE 0x00000002
80 #define HSA_MEM_FLAGS_RESERVED 0xfffffffc
82 struct kfd_mem_properties {
83 struct list_head list;
85 uint64_t size_in_bytes;
90 struct attribute attr;
93 #define KFD_TOPOLOGY_CPU_SIBLINGS 256
95 #define HSA_CACHE_TYPE_DATA 0x00000001
96 #define HSA_CACHE_TYPE_INSTRUCTION 0x00000002
97 #define HSA_CACHE_TYPE_CPU 0x00000004
98 #define HSA_CACHE_TYPE_HSACU 0x00000008
99 #define HSA_CACHE_TYPE_RESERVED 0xfffffff0
101 struct kfd_cache_properties {
102 struct list_head list;
103 uint32_t processor_id_low;
104 uint32_t cache_level;
106 uint32_t cacheline_size;
107 uint32_t cachelines_per_tag;
108 uint32_t cache_assoc;
109 uint32_t cache_latency;
111 uint8_t sibling_map[KFD_TOPOLOGY_CPU_SIBLINGS];
112 struct kobject *kobj;
113 struct attribute attr;
116 struct kfd_iolink_properties {
117 struct list_head list;
118 uint32_t iolink_type;
124 uint32_t min_latency;
125 uint32_t max_latency;
126 uint32_t min_bandwidth;
127 uint32_t max_bandwidth;
128 uint32_t rec_transfer_size;
130 struct kobject *kobj;
131 struct attribute attr;
134 struct kfd_topology_device {
135 struct list_head list;
137 struct kfd_node_properties node_props;
138 uint32_t mem_bank_count;
139 struct list_head mem_props;
140 uint32_t cache_count;
141 struct list_head cache_props;
142 uint32_t io_link_count;
143 struct list_head io_link_props;
145 struct kobject *kobj_node;
146 struct kobject *kobj_mem;
147 struct kobject *kobj_cache;
148 struct kobject *kobj_iolink;
149 struct attribute attr_gpuid;
150 struct attribute attr_name;
151 struct attribute attr_props;
154 struct kfd_system_properties {
155 uint32_t num_devices; /* Number of H-NUMA nodes */
156 uint32_t generation_count;
157 uint64_t platform_oem;
158 uint64_t platform_id;
159 uint64_t platform_rev;
160 struct kobject *kobj_topology;
161 struct kobject *kobj_nodes;
162 struct attribute attr_genid;
163 struct attribute attr_props;
168 #endif /* __KFD_TOPOLOGY_H__ */