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 AMDKFD_IOCTL_BASE 'K' 132 #define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr) 133 #define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type) 134 #define AMDKFD_IOW(nr, type) _IOW(AMDKFD_IOCTL_BASE, nr, type) 135 #define AMDKFD_IOWR(nr, type) _IOWR(AMDKFD_IOCTL_BASE, nr, type) 136 137 #define AMDKFD_IOC_GET_VERSION \ 138 AMDKFD_IOR(0x01, struct kfd_ioctl_get_version_args) 139 140 #define AMDKFD_IOC_CREATE_QUEUE \ 141 AMDKFD_IOWR(0x02, struct kfd_ioctl_create_queue_args) 142 143 #define AMDKFD_IOC_DESTROY_QUEUE \ 144 AMDKFD_IOWR(0x03, struct kfd_ioctl_destroy_queue_args) 145 146 #define AMDKFD_IOC_SET_MEMORY_POLICY \ 147 AMDKFD_IOW(0x04, struct kfd_ioctl_set_memory_policy_args) 148 149 #define AMDKFD_IOC_GET_CLOCK_COUNTERS \ 150 AMDKFD_IOWR(0x05, struct kfd_ioctl_get_clock_counters_args) 151 152 #define AMDKFD_IOC_GET_PROCESS_APERTURES \ 153 AMDKFD_IOR(0x06, struct kfd_ioctl_get_process_apertures_args) 154 155 #define AMDKFD_IOC_UPDATE_QUEUE \ 156 AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args) 157 158 #define AMDKFD_COMMAND_START 0x01 159 #define AMDKFD_COMMAND_END 0x08 160 161 #endif 162