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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b7facbaec7
- 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
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
155 lines
4.7 KiB
C
155 lines
4.7 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef KFD_IOCTL_H_INCLUDED
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#define KFD_IOCTL_H_INCLUDED
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#define KFD_IOCTL_MAJOR_VERSION 1
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#define KFD_IOCTL_MINOR_VERSION 0
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struct kfd_ioctl_get_version_args {
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uint32_t major_version; /* from KFD */
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uint32_t minor_version; /* from KFD */
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};
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/* For kfd_ioctl_create_queue_args.queue_type. */
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#define KFD_IOC_QUEUE_TYPE_COMPUTE 0
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#define KFD_IOC_QUEUE_TYPE_SDMA 1
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#define KFD_IOC_QUEUE_TYPE_COMPUTE_AQL 2
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#define KFD_MAX_QUEUE_PERCENTAGE 100
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#define KFD_MAX_QUEUE_PRIORITY 15
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struct kfd_ioctl_create_queue_args {
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uint64_t ring_base_address; /* to KFD */
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uint64_t write_pointer_address; /* from KFD */
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uint64_t read_pointer_address; /* from KFD */
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uint64_t doorbell_offset; /* from KFD */
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uint32_t ring_size; /* to KFD */
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uint32_t gpu_id; /* to KFD */
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uint32_t queue_type; /* to KFD */
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uint32_t queue_percentage; /* to KFD */
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uint32_t queue_priority; /* to KFD */
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uint32_t queue_id; /* from KFD */
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uint64_t eop_buffer_address; /* to KFD */
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uint64_t eop_buffer_size; /* to KFD */
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uint64_t ctx_save_restore_address; /* to KFD */
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uint64_t ctx_save_restore_size; /* to KFD */
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};
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struct kfd_ioctl_destroy_queue_args {
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uint32_t queue_id; /* to KFD */
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uint32_t pad;
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};
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struct kfd_ioctl_update_queue_args {
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uint64_t ring_base_address; /* to KFD */
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uint32_t queue_id; /* to KFD */
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uint32_t ring_size; /* to KFD */
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uint32_t queue_percentage; /* to KFD */
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uint32_t queue_priority; /* to KFD */
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};
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/* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */
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#define KFD_IOC_CACHE_POLICY_COHERENT 0
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#define KFD_IOC_CACHE_POLICY_NONCOHERENT 1
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struct kfd_ioctl_set_memory_policy_args {
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uint64_t alternate_aperture_base; /* to KFD */
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uint64_t alternate_aperture_size; /* to KFD */
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uint32_t gpu_id; /* to KFD */
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uint32_t default_policy; /* to KFD */
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uint32_t alternate_policy; /* to KFD */
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uint32_t pad;
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};
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/*
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* All counters are monotonic. They are used for profiling of compute jobs.
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* The profiling is done by userspace.
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*
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* In case of GPU reset, the counter should not be affected.
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*/
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struct kfd_ioctl_get_clock_counters_args {
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uint64_t gpu_clock_counter; /* from KFD */
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uint64_t cpu_clock_counter; /* from KFD */
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uint64_t system_clock_counter; /* from KFD */
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uint64_t system_clock_freq; /* from KFD */
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uint32_t gpu_id; /* to KFD */
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uint32_t pad;
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};
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#define NUM_OF_SUPPORTED_GPUS 7
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struct kfd_process_device_apertures {
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uint64_t lds_base; /* from KFD */
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uint64_t lds_limit; /* from KFD */
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uint64_t scratch_base; /* from KFD */
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uint64_t scratch_limit; /* from KFD */
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uint64_t gpuvm_base; /* from KFD */
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uint64_t gpuvm_limit; /* from KFD */
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uint32_t gpu_id; /* from KFD */
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uint32_t pad;
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};
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struct kfd_ioctl_get_process_apertures_args {
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struct kfd_process_device_apertures
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process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */
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/* from KFD, should be in the range [1 - NUM_OF_SUPPORTED_GPUS] */
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uint32_t num_of_nodes;
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uint32_t pad;
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};
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#define KFD_IOC_MAGIC 'K'
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#define KFD_IOC_GET_VERSION \
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_IOR(KFD_IOC_MAGIC, 1, struct kfd_ioctl_get_version_args)
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#define KFD_IOC_CREATE_QUEUE \
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_IOWR(KFD_IOC_MAGIC, 2, struct kfd_ioctl_create_queue_args)
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#define KFD_IOC_DESTROY_QUEUE \
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_IOWR(KFD_IOC_MAGIC, 3, struct kfd_ioctl_destroy_queue_args)
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#define KFD_IOC_SET_MEMORY_POLICY \
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_IOW(KFD_IOC_MAGIC, 4, struct kfd_ioctl_set_memory_policy_args)
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#define KFD_IOC_GET_CLOCK_COUNTERS \
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_IOWR(KFD_IOC_MAGIC, 5, struct kfd_ioctl_get_clock_counters_args)
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#define KFD_IOC_GET_PROCESS_APERTURES \
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_IOR(KFD_IOC_MAGIC, 6, struct kfd_ioctl_get_process_apertures_args)
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#define KFD_IOC_UPDATE_QUEUE \
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_IOW(KFD_IOC_MAGIC, 7, struct kfd_ioctl_update_queue_args)
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#endif
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