History

amdkfd: Add IOCTL set definitions of amdkfd

- KFD_IOC_GET_VERSION: Retrieves the interface version of amdkfd - KFD_IOC_CREATE_QUEUE: Creates a usermode queue that runs on a specific GPU device - KFD_IOC_DESTROY_QUEUE: Destroys an existing usermode queue - KFD_IOC_SET_MEMORY_POLICY: Sets the memory policy of the default and alternate aperture of the calling process - KFD_IOC_GET_CLOCK_COUNTERS: Retrieves counters (timestamps) of CPU and GPU - KFD_IOC_GET_PROCESS_APERTURES: Retrieves information about process apertures that were initialized during the open() call of the amdkfd device - KFD_IOC_UPDATE_QUEUE: Updates configuration of an existing usermode queue v3: Remove pragma pack and pmc ioctls. Added parameter for doorbell offset and a comment on counters v5: Add define for AQL queues. Fix arguments of Get Version IOCTL Make IOCTL's structures to be the same size on 32/64 bit v6: Change the version of the amdkfd-thunk interface

Oded Gabbay committed 12 years ago

Commit b7facba1 parent 16423d61 file · +154 −0Browse files

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include/uapi/linux/kfd_ioctl.h+154−0
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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+#ifndef KFD_IOCTL_H_INCLUDED
24+#define KFD_IOCTL_H_INCLUDED
25+
26+#include <linux/types.h>
27+#include <linux/ioctl.h>
28+
29+#define KFD_IOCTL_MAJOR_VERSION 1
30+#define KFD_IOCTL_MINOR_VERSION 0
31+
32+struct kfd_ioctl_get_version_args {
33+ uint32_t major_version; /* from KFD */
34+ uint32_t minor_version; /* from KFD */
35+};
36+
37+/* For kfd_ioctl_create_queue_args.queue_type. */
38+#define KFD_IOC_QUEUE_TYPE_COMPUTE 0
39+#define KFD_IOC_QUEUE_TYPE_SDMA 1
40+#define KFD_IOC_QUEUE_TYPE_COMPUTE_AQL 2
41+
42+#define KFD_MAX_QUEUE_PERCENTAGE 100
43+#define KFD_MAX_QUEUE_PRIORITY 15
44+
45+struct kfd_ioctl_create_queue_args {
46+ uint64_t ring_base_address; /* to KFD */
47+ uint64_t write_pointer_address; /* from KFD */
48+ uint64_t read_pointer_address; /* from KFD */
49+ uint64_t doorbell_offset; /* from KFD */
50+
51+ uint32_t ring_size; /* to KFD */
52+ uint32_t gpu_id; /* to KFD */
53+ uint32_t queue_type; /* to KFD */
54+ uint32_t queue_percentage; /* to KFD */
55+ uint32_t queue_priority; /* to KFD */
56+ uint32_t queue_id; /* from KFD */
57+
58+ uint64_t eop_buffer_address; /* to KFD */
59+ uint64_t eop_buffer_size; /* to KFD */
60+ uint64_t ctx_save_restore_address; /* to KFD */
61+ uint64_t ctx_save_restore_size; /* to KFD */
62+};
63+
64+struct kfd_ioctl_destroy_queue_args {
65+ uint32_t queue_id; /* to KFD */
66+ uint32_t pad;
67+};
68+
69+struct kfd_ioctl_update_queue_args {
70+ uint64_t ring_base_address; /* to KFD */
71+
72+ uint32_t queue_id; /* to KFD */
73+ uint32_t ring_size; /* to KFD */
74+ uint32_t queue_percentage; /* to KFD */
75+ uint32_t queue_priority; /* to KFD */
76+};
77+
78+/* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */
79+#define KFD_IOC_CACHE_POLICY_COHERENT 0
80+#define KFD_IOC_CACHE_POLICY_NONCOHERENT 1
81+
82+struct kfd_ioctl_set_memory_policy_args {
83+ uint64_t alternate_aperture_base; /* to KFD */
84+ uint64_t alternate_aperture_size; /* to KFD */
85+
86+ uint32_t gpu_id; /* to KFD */
87+ uint32_t default_policy; /* to KFD */
88+ uint32_t alternate_policy; /* to KFD */
89+ uint32_t pad;
90+};
91+
92+/*
93+ * All counters are monotonic. They are used for profiling of compute jobs.
94+ * The profiling is done by userspace.
95+ *
96+ * In case of GPU reset, the counter should not be affected.
97+ */
98+
99+struct kfd_ioctl_get_clock_counters_args {
100+ uint64_t gpu_clock_counter; /* from KFD */
101+ uint64_t cpu_clock_counter; /* from KFD */
102+ uint64_t system_clock_counter; /* from KFD */
103+ uint64_t system_clock_freq; /* from KFD */
104+
105+ uint32_t gpu_id; /* to KFD */
106+ uint32_t pad;
107+};
108+
109+#define NUM_OF_SUPPORTED_GPUS 7
110+
111+struct kfd_process_device_apertures {
112+ uint64_t lds_base; /* from KFD */
113+ uint64_t lds_limit; /* from KFD */
114+ uint64_t scratch_base; /* from KFD */
115+ uint64_t scratch_limit; /* from KFD */
116+ uint64_t gpuvm_base; /* from KFD */
117+ uint64_t gpuvm_limit; /* from KFD */
118+ uint32_t gpu_id; /* from KFD */
119+ uint32_t pad;
120+};
121+
122+struct kfd_ioctl_get_process_apertures_args {
123+ struct kfd_process_device_apertures
124+ process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */
125+
126+ /* from KFD, should be in the range [1 - NUM_OF_SUPPORTED_GPUS] */
127+ uint32_t num_of_nodes;
128+ uint32_t pad;
129+};
130+
131+#define KFD_IOC_MAGIC 'K'
132+
133+#define KFD_IOC_GET_VERSION \
134+ _IOR(KFD_IOC_MAGIC, 1, struct kfd_ioctl_get_version_args)
135+
136+#define KFD_IOC_CREATE_QUEUE \
137+ _IOWR(KFD_IOC_MAGIC, 2, struct kfd_ioctl_create_queue_args)
138+
139+#define KFD_IOC_DESTROY_QUEUE \
140+ _IOWR(KFD_IOC_MAGIC, 3, struct kfd_ioctl_destroy_queue_args)
141+
142+#define KFD_IOC_SET_MEMORY_POLICY \
143+ _IOW(KFD_IOC_MAGIC, 4, struct kfd_ioctl_set_memory_policy_args)
144+
145+#define KFD_IOC_GET_CLOCK_COUNTERS \
146+ _IOWR(KFD_IOC_MAGIC, 5, struct kfd_ioctl_get_clock_counters_args)
147+
148+#define KFD_IOC_GET_PROCESS_APERTURES \
149+ _IOR(KFD_IOC_MAGIC, 6, struct kfd_ioctl_get_process_apertures_args)
150+
151+#define KFD_IOC_UPDATE_QUEUE \
152+ _IOW(KFD_IOC_MAGIC, 7, struct kfd_ioctl_update_queue_args)
153+
154+#endif