Release 4.7 include/uapi/linux/kfd_ioctl.h
/*
* 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 <linux/types.h>
#include <linux/ioctl.h>
#define KFD_IOCTL_MAJOR_VERSION 1
#define KFD_IOCTL_MINOR_VERSION 1
struct kfd_ioctl_get_version_args {
uint32_t major_version; /* from KFD */
uint32_t 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 {
uint64_t ring_base_address; /* to KFD */
uint64_t write_pointer_address; /* from KFD */
uint64_t read_pointer_address; /* from KFD */
uint64_t doorbell_offset; /* from KFD */
uint32_t ring_size; /* to KFD */
uint32_t gpu_id; /* to KFD */
uint32_t queue_type; /* to KFD */
uint32_t queue_percentage; /* to KFD */
uint32_t queue_priority; /* to KFD */
uint32_t queue_id; /* from KFD */
uint64_t eop_buffer_address; /* to KFD */
uint64_t eop_buffer_size; /* to KFD */
uint64_t ctx_save_restore_address; /* to KFD */
uint64_t ctx_save_restore_size; /* to KFD */
};
struct kfd_ioctl_destroy_queue_args {
uint32_t queue_id; /* to KFD */
uint32_t pad;
};
struct kfd_ioctl_update_queue_args {
uint64_t ring_base_address; /* to KFD */
uint32_t queue_id; /* to KFD */
uint32_t ring_size; /* to KFD */
uint32_t queue_percentage; /* to KFD */
uint32_t queue_priority; /* 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 {
uint64_t alternate_aperture_base; /* to KFD */
uint64_t alternate_aperture_size; /* to KFD */
uint32_t gpu_id; /* to KFD */
uint32_t default_policy; /* to KFD */
uint32_t alternate_policy; /* to KFD */
uint32_t 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 {
uint64_t gpu_clock_counter; /* from KFD */
uint64_t cpu_clock_counter; /* from KFD */
uint64_t system_clock_counter; /* from KFD */
uint64_t system_clock_freq; /* from KFD */
uint32_t gpu_id; /* to KFD */
uint32_t pad;
};
#define NUM_OF_SUPPORTED_GPUS 7
struct kfd_process_device_apertures {
uint64_t lds_base; /* from KFD */
uint64_t lds_limit; /* from KFD */
uint64_t scratch_base; /* from KFD */
uint64_t scratch_limit; /* from KFD */
uint64_t gpuvm_base; /* from KFD */
uint64_t gpuvm_limit; /* from KFD */
uint32_t gpu_id; /* from KFD */
uint32_t pad;
};
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] */
uint32_t num_of_nodes;
uint32_t 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 {
uint32_t gpu_id; /* to KFD */
uint32_t pad;
};
struct kfd_ioctl_dbg_unregister_args {
uint32_t gpu_id; /* to KFD */
uint32_t pad;
};
struct kfd_ioctl_dbg_address_watch_args {
uint64_t content_ptr; /* a pointer to the actual content */
uint32_t gpu_id; /* to KFD */
uint32_t buf_size_in_bytes; /*including gpu_id and buf_size */
};
struct kfd_ioctl_dbg_wave_control_args {
uint64_t content_ptr; /* a pointer to the actual content */
uint32_t gpu_id; /* to KFD */
uint32_t 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 256
struct kfd_ioctl_create_event_args {
uint64_t event_page_offset; /* from KFD */
uint32_t event_trigger_data; /* from KFD - signal events only */
uint32_t event_type; /* to KFD */
uint32_t auto_reset; /* to KFD */
uint32_t node_id; /* to KFD - only valid for certain
event types */
uint32_t event_id; /* from KFD */
uint32_t event_slot_index; /* from KFD */
};
struct kfd_ioctl_destroy_event_args {
uint32_t event_id; /* to KFD */
uint32_t pad;
};
struct kfd_ioctl_set_event_args {
uint32_t event_id; /* to KFD */
uint32_t pad;
};
struct kfd_ioctl_reset_event_args {
uint32_t event_id; /* to KFD */
uint32_t pad;
};
struct kfd_memory_exception_failure {
uint32_t NotPresent; /* Page not present or supervisor privilege */
uint32_t ReadOnly; /* Write access to a read-only page */
uint32_t NoExecute; /* Execute access to a page marked NX */
uint32_t pad;
};
/* memory exception data*/
struct kfd_hsa_memory_exception_data {
struct kfd_memory_exception_failure failure;
uint64_t va;
uint32_t gpu_id;
uint32_t pad;
};
/* Event data*/
struct kfd_event_data {
union {
struct kfd_hsa_memory_exception_data memory_exception_data;
}; /* From KFD */
uint64_t kfd_event_data_ext; /* pointer to an extension structure
for future exception types */
uint32_t event_id; /* to KFD */
uint32_t pad;
};
struct kfd_ioctl_wait_events_args {
uint64_t events_ptr; /* pointed to struct
kfd_event_data array, to KFD */
uint32_t num_events; /* to KFD */
uint32_t wait_for_all; /* to KFD */
uint32_t timeout; /* to KFD */
uint32_t wait_result; /* 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_COMMAND_START 0x01
#define AMDKFD_COMMAND_END 0x11
#endif
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