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/* * Copyright 2014 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef KFD_IOCTL_H_INCLUDED #define KFD_IOCTL_H_INCLUDED #include <drm/drm.h> #include <linux/ioctl.h> #define KFD_IOCTL_MAJOR_VERSION 1 #define KFD_IOCTL_MINOR_VERSION 1 struct kfd_ioctl_get_version_args { __u32 major_version; /* from KFD */ __u32 minor_version; /* from KFD */ }; /* For kfd_ioctl_create_queue_args.queue_type. */ #define KFD_IOC_QUEUE_TYPE_COMPUTE 0 #define KFD_IOC_QUEUE_TYPE_SDMA 1 #define KFD_IOC_QUEUE_TYPE_COMPUTE_AQL 2 #define KFD_MAX_QUEUE_PERCENTAGE 100 #define KFD_MAX_QUEUE_PRIORITY 15 struct kfd_ioctl_create_queue_args { __u64 ring_base_address; /* to KFD */ __u64 write_pointer_address; /* from KFD */ __u64 read_pointer_address; /* from KFD */ __u64 doorbell_offset; /* from KFD */ __u32 ring_size; /* to KFD */ __u32 gpu_id; /* to KFD */ __u32 queue_type; /* to KFD */ __u32 queue_percentage; /* to KFD */ __u32 queue_priority; /* to KFD */ __u32 queue_id; /* from KFD */ __u64 eop_buffer_address; /* to KFD */ __u64 eop_buffer_size; /* to KFD */ __u64 ctx_save_restore_address; /* to KFD */ __u32 ctx_save_restore_size; /* to KFD */ __u32 ctl_stack_size; /* to KFD */ }; struct kfd_ioctl_destroy_queue_args { __u32 queue_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_update_queue_args { __u64 ring_base_address; /* to KFD */ __u32 queue_id; /* to KFD */ __u32 ring_size; /* to KFD */ __u32 queue_percentage; /* to KFD */ __u32 queue_priority; /* to KFD */ }; struct kfd_ioctl_set_cu_mask_args { __u32 queue_id; /* to KFD */ __u32 num_cu_mask; /* to KFD */ __u64 cu_mask_ptr; /* to KFD */ }; /* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */ #define KFD_IOC_CACHE_POLICY_COHERENT 0 #define KFD_IOC_CACHE_POLICY_NONCOHERENT 1 struct kfd_ioctl_set_memory_policy_args { __u64 alternate_aperture_base; /* to KFD */ __u64 alternate_aperture_size; /* to KFD */ __u32 gpu_id; /* to KFD */ __u32 default_policy; /* to KFD */ __u32 alternate_policy; /* to KFD */ __u32 pad; }; /* * All counters are monotonic. They are used for profiling of compute jobs. * The profiling is done by userspace. * * In case of GPU reset, the counter should not be affected. */ struct kfd_ioctl_get_clock_counters_args { __u64 gpu_clock_counter; /* from KFD */ __u64 cpu_clock_counter; /* from KFD */ __u64 system_clock_counter; /* from KFD */ __u64 system_clock_freq; /* from KFD */ __u32 gpu_id; /* to KFD */ __u32 pad; }; struct kfd_process_device_apertures { __u64 lds_base; /* from KFD */ __u64 lds_limit; /* from KFD */ __u64 scratch_base; /* from KFD */ __u64 scratch_limit; /* from KFD */ __u64 gpuvm_base; /* from KFD */ __u64 gpuvm_limit; /* from KFD */ __u32 gpu_id; /* from KFD */ __u32 pad; }; /* * AMDKFD_IOC_GET_PROCESS_APERTURES is deprecated. Use * AMDKFD_IOC_GET_PROCESS_APERTURES_NEW instead, which supports an * unlimited number of GPUs. */ #define NUM_OF_SUPPORTED_GPUS 7 struct kfd_ioctl_get_process_apertures_args { struct kfd_process_device_apertures process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */ /* from KFD, should be in the range [1 - NUM_OF_SUPPORTED_GPUS] */ __u32 num_of_nodes; __u32 pad; }; struct kfd_ioctl_get_process_apertures_new_args { /* User allocated. Pointer to struct kfd_process_device_apertures * filled in by Kernel */ __u64 kfd_process_device_apertures_ptr; /* to KFD - indicates amount of memory present in * kfd_process_device_apertures_ptr * from KFD - Number of entries filled by KFD. */ __u32 num_of_nodes; __u32 pad; }; #define MAX_ALLOWED_NUM_POINTS 100 #define MAX_ALLOWED_AW_BUFF_SIZE 4096 #define MAX_ALLOWED_WAC_BUFF_SIZE 128 struct kfd_ioctl_dbg_register_args { __u32 gpu_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_dbg_unregister_args { __u32 gpu_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_dbg_address_watch_args { __u64 content_ptr; /* a pointer to the actual content */ __u32 gpu_id; /* to KFD */ __u32 buf_size_in_bytes; /*including gpu_id and buf_size */ }; struct kfd_ioctl_dbg_wave_control_args { __u64 content_ptr; /* a pointer to the actual content */ __u32 gpu_id; /* to KFD */ __u32 buf_size_in_bytes; /*including gpu_id and buf_size */ }; /* Matching HSA_EVENTTYPE */ #define KFD_IOC_EVENT_SIGNAL 0 #define KFD_IOC_EVENT_NODECHANGE 1 #define KFD_IOC_EVENT_DEVICESTATECHANGE 2 #define KFD_IOC_EVENT_HW_EXCEPTION 3 #define KFD_IOC_EVENT_SYSTEM_EVENT 4 #define KFD_IOC_EVENT_DEBUG_EVENT 5 #define KFD_IOC_EVENT_PROFILE_EVENT 6 #define KFD_IOC_EVENT_QUEUE_EVENT 7 #define KFD_IOC_EVENT_MEMORY 8 #define KFD_IOC_WAIT_RESULT_COMPLETE 0 #define KFD_IOC_WAIT_RESULT_TIMEOUT 1 #define KFD_IOC_WAIT_RESULT_FAIL 2 #define KFD_SIGNAL_EVENT_LIMIT 4096 /* For kfd_event_data.hw_exception_data.reset_type. */ #define KFD_HW_EXCEPTION_WHOLE_GPU_RESET 0 #define KFD_HW_EXCEPTION_PER_ENGINE_RESET 1 /* For kfd_event_data.hw_exception_data.reset_cause. */ #define KFD_HW_EXCEPTION_GPU_HANG 0 #define KFD_HW_EXCEPTION_ECC 1 struct kfd_ioctl_create_event_args { __u64 event_page_offset; /* from KFD */ __u32 event_trigger_data; /* from KFD - signal events only */ __u32 event_type; /* to KFD */ __u32 auto_reset; /* to KFD */ __u32 node_id; /* to KFD - only valid for certain event types */ __u32 event_id; /* from KFD */ __u32 event_slot_index; /* from KFD */ }; struct kfd_ioctl_destroy_event_args { __u32 event_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_set_event_args { __u32 event_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_reset_event_args { __u32 event_id; /* to KFD */ __u32 pad; }; struct kfd_memory_exception_failure { __u32 NotPresent; /* Page not present or supervisor privilege */ __u32 ReadOnly; /* Write access to a read-only page */ __u32 NoExecute; /* Execute access to a page marked NX */ __u32 imprecise; /* Can't determine the exact fault address */ }; /* memory exception data*/ struct kfd_hsa_memory_exception_data { struct kfd_memory_exception_failure failure; __u64 va; __u32 gpu_id; __u32 pad; }; /* hw exception data */ struct kfd_hsa_hw_exception_data { __u32 reset_type; __u32 reset_cause; __u32 memory_lost; __u32 gpu_id; }; /* Event data */ struct kfd_event_data { union { struct kfd_hsa_memory_exception_data memory_exception_data; struct kfd_hsa_hw_exception_data hw_exception_data; }; /* From KFD */ __u64 kfd_event_data_ext; /* pointer to an extension structure for future exception types */ __u32 event_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_wait_events_args { __u64 events_ptr; /* pointed to struct kfd_event_data array, to KFD */ __u32 num_events; /* to KFD */ __u32 wait_for_all; /* to KFD */ __u32 timeout; /* to KFD */ __u32 wait_result; /* from KFD */ }; struct kfd_ioctl_set_scratch_backing_va_args { __u64 va_addr; /* to KFD */ __u32 gpu_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_get_tile_config_args { /* to KFD: pointer to tile array */ __u64 tile_config_ptr; /* to KFD: pointer to macro tile array */ __u64 macro_tile_config_ptr; /* to KFD: array size allocated by user mode * from KFD: array size filled by kernel */ __u32 num_tile_configs; /* to KFD: array size allocated by user mode * from KFD: array size filled by kernel */ __u32 num_macro_tile_configs; __u32 gpu_id; /* to KFD */ __u32 gb_addr_config; /* from KFD */ __u32 num_banks; /* from KFD */ __u32 num_ranks; /* from KFD */ /* struct size can be extended later if needed * without breaking ABI compatibility */ }; struct kfd_ioctl_set_trap_handler_args { __u64 tba_addr; /* to KFD */ __u64 tma_addr; /* to KFD */ __u32 gpu_id; /* to KFD */ __u32 pad; }; struct kfd_ioctl_acquire_vm_args { __u32 drm_fd; /* to KFD */ __u32 gpu_id; /* to KFD */ }; /* Allocation flags: memory types */ #define KFD_IOC_ALLOC_MEM_FLAGS_VRAM (1 << 0) #define KFD_IOC_ALLOC_MEM_FLAGS_GTT (1 << 1) #define KFD_IOC_ALLOC_MEM_FLAGS_USERPTR (1 << 2) #define KFD_IOC_ALLOC_MEM_FLAGS_DOORBELL (1 << 3) /* Allocation flags: attributes/access options */ #define KFD_IOC_ALLOC_MEM_FLAGS_WRITABLE (1 << 31) #define KFD_IOC_ALLOC_MEM_FLAGS_EXECUTABLE (1 << 30) #define KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC (1 << 29) #define KFD_IOC_ALLOC_MEM_FLAGS_NO_SUBSTITUTE (1 << 28) #define KFD_IOC_ALLOC_MEM_FLAGS_AQL_QUEUE_MEM (1 << 27) #define KFD_IOC_ALLOC_MEM_FLAGS_COHERENT (1 << 26) /* Allocate memory for later SVM (shared virtual memory) mapping. * * @va_addr: virtual address of the memory to be allocated * all later mappings on all GPUs will use this address * @size: size in bytes * @handle: buffer handle returned to user mode, used to refer to * this allocation for mapping, unmapping and freeing * @mmap_offset: for CPU-mapping the allocation by mmapping a render node * for userptrs this is overloaded to specify the CPU address * @gpu_id: device identifier * @flags: memory type and attributes. See KFD_IOC_ALLOC_MEM_FLAGS above */ struct kfd_ioctl_alloc_memory_of_gpu_args { __u64 va_addr; /* to KFD */ __u64 size; /* to KFD */ __u64 handle; /* from KFD */ __u64 mmap_offset; /* to KFD (userptr), from KFD (mmap offset) */ __u32 gpu_id; /* to KFD */ __u32 flags; }; /* Free memory allocated with kfd_ioctl_alloc_memory_of_gpu * * @handle: memory handle returned by alloc */ struct kfd_ioctl_free_memory_of_gpu_args { __u64 handle; /* to KFD */ }; /* Map memory to one or more GPUs * * @handle: memory handle returned by alloc * @device_ids_array_ptr: array of gpu_ids (__u32 per device) * @n_devices: number of devices in the array * @n_success: number of devices mapped successfully * * @n_success returns information to the caller how many devices from * the start of the array have mapped the buffer successfully. It can * be passed into a subsequent retry call to skip those devices. For * the first call the caller should initialize it to 0. * * If the ioctl completes with return code 0 (success), n_success == * n_devices. */ struct kfd_ioctl_map_memory_to_gpu_args { __u64 handle; /* to KFD */ __u64 device_ids_array_ptr; /* to KFD */ __u32 n_devices; /* to KFD */ __u32 n_success; /* to/from KFD */ }; /* Unmap memory from one or more GPUs * * same arguments as for mapping */ struct kfd_ioctl_unmap_memory_from_gpu_args { __u64 handle; /* to KFD */ __u64 device_ids_array_ptr; /* to KFD */ __u32 n_devices; /* to KFD */ __u32 n_success; /* to/from KFD */ }; #define AMDKFD_IOCTL_BASE 'K' #define AMDKFD_IO(nr) _IO(AMDKFD_IOCTL_BASE, nr) #define AMDKFD_IOR(nr, type) _IOR(AMDKFD_IOCTL_BASE, nr, type) #define AMDKFD_IOW(nr, type) _IOW(AMDKFD_IOCTL_BASE, nr, type) #define AMDKFD_IOWR(nr, type) _IOWR(AMDKFD_IOCTL_BASE, nr, type) #define AMDKFD_IOC_GET_VERSION \ AMDKFD_IOR(0x01, struct kfd_ioctl_get_version_args) #define AMDKFD_IOC_CREATE_QUEUE \ AMDKFD_IOWR(0x02, struct kfd_ioctl_create_queue_args) #define AMDKFD_IOC_DESTROY_QUEUE \ AMDKFD_IOWR(0x03, struct kfd_ioctl_destroy_queue_args) #define AMDKFD_IOC_SET_MEMORY_POLICY \ AMDKFD_IOW(0x04, struct kfd_ioctl_set_memory_policy_args) #define AMDKFD_IOC_GET_CLOCK_COUNTERS \ AMDKFD_IOWR(0x05, struct kfd_ioctl_get_clock_counters_args) #define AMDKFD_IOC_GET_PROCESS_APERTURES \ AMDKFD_IOR(0x06, struct kfd_ioctl_get_process_apertures_args) #define AMDKFD_IOC_UPDATE_QUEUE \ AMDKFD_IOW(0x07, struct kfd_ioctl_update_queue_args) #define AMDKFD_IOC_CREATE_EVENT \ AMDKFD_IOWR(0x08, struct kfd_ioctl_create_event_args) #define AMDKFD_IOC_DESTROY_EVENT \ AMDKFD_IOW(0x09, struct kfd_ioctl_destroy_event_args) #define AMDKFD_IOC_SET_EVENT \ AMDKFD_IOW(0x0A, struct kfd_ioctl_set_event_args) #define AMDKFD_IOC_RESET_EVENT \ AMDKFD_IOW(0x0B, struct kfd_ioctl_reset_event_args) #define AMDKFD_IOC_WAIT_EVENTS \ AMDKFD_IOWR(0x0C, struct kfd_ioctl_wait_events_args) #define AMDKFD_IOC_DBG_REGISTER \ AMDKFD_IOW(0x0D, struct kfd_ioctl_dbg_register_args) #define AMDKFD_IOC_DBG_UNREGISTER \ AMDKFD_IOW(0x0E, struct kfd_ioctl_dbg_unregister_args) #define AMDKFD_IOC_DBG_ADDRESS_WATCH \ AMDKFD_IOW(0x0F, struct kfd_ioctl_dbg_address_watch_args) #define AMDKFD_IOC_DBG_WAVE_CONTROL \ AMDKFD_IOW(0x10, struct kfd_ioctl_dbg_wave_control_args) #define AMDKFD_IOC_SET_SCRATCH_BACKING_VA \ AMDKFD_IOWR(0x11, struct kfd_ioctl_set_scratch_backing_va_args) #define AMDKFD_IOC_GET_TILE_CONFIG \ AMDKFD_IOWR(0x12, struct kfd_ioctl_get_tile_config_args) #define AMDKFD_IOC_SET_TRAP_HANDLER \ AMDKFD_IOW(0x13, struct kfd_ioctl_set_trap_handler_args) #define AMDKFD_IOC_GET_PROCESS_APERTURES_NEW \ AMDKFD_IOWR(0x14, \ struct kfd_ioctl_get_process_apertures_new_args) #define AMDKFD_IOC_ACQUIRE_VM \ AMDKFD_IOW(0x15, struct kfd_ioctl_acquire_vm_args) #define AMDKFD_IOC_ALLOC_MEMORY_OF_GPU \ AMDKFD_IOWR(0x16, struct kfd_ioctl_alloc_memory_of_gpu_args) #define AMDKFD_IOC_FREE_MEMORY_OF_GPU \ AMDKFD_IOW(0x17, struct kfd_ioctl_free_memory_of_gpu_args) #define AMDKFD_IOC_MAP_MEMORY_TO_GPU \ AMDKFD_IOWR(0x18, struct kfd_ioctl_map_memory_to_gpu_args) #define AMDKFD_IOC_UNMAP_MEMORY_FROM_GPU \ AMDKFD_IOWR(0x19, struct kfd_ioctl_unmap_memory_from_gpu_args) #define AMDKFD_IOC_SET_CU_MASK \ AMDKFD_IOW(0x1A, struct kfd_ioctl_set_cu_mask_args) #define AMDKFD_COMMAND_START 0x01 #define AMDKFD_COMMAND_END 0x1B #endif