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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 <linux/types.h>
#include <linux/ioctl.h>
#define KFD_IOCTL_MAJOR_VERSION 1
#define KFD_IOCTL_MINOR_VERSION 0
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 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_COMMAND_START 0x01
#define AMDKFD_COMMAND_END 0x08
#endif
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