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// Copyright 2023 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package nvgpu tracks the ABI of the Nvidia GPU Linux kernel driver:
// https://github.com/NVIDIA/open-gpu-kernel-modules
package nvgpu
import (
"fmt"
)
// Device numbers.
const (
NV_MAJOR_DEVICE_NUMBER = 195 // from kernel-open/common/inc/nv.h
NV_CONTROL_DEVICE_MINOR = 255 // from kernel-open/common/inc/nv-linux.h
NVIDIA_UVM_PRIMARY_MINOR_NUMBER = 0 // from kernel-open/nvidia-uvm/uvm_common.h
)
// Handle is NvHandle, from src/common/sdk/nvidia/inc/nvtypes.h.
//
// +marshal
// +stateify savable
type Handle struct {
Val uint32
}
// String implements fmt.Stringer.String.
func (h Handle) String() string {
return fmt.Sprintf("%#x", h.Val)
}
// P64 is NvP64, from src/common/sdk/nvidia/inc/nvtypes.h.
//
// +marshal
type P64 uint64
// From src/common/sdk/nvidia/inc/nvlimits.h:
const (
NV_MAX_DEVICES = 32
NV_MAX_SUBDEVICES = 8
)
// From src/common/sdk/nvidia/inc/alloc/alloc_channel.h.
const (
CC_CHAN_ALLOC_IV_SIZE_DWORD = 3
CC_CHAN_ALLOC_NONCE_SIZE_DWORD = 8
)
// RS_ACCESS_MASK is RS_ACCESS_MASK, from
// src/common/sdk/nvidia/inc/rs_access.h.
//
// +marshal
// +stateify savable
type RS_ACCESS_MASK struct {
Limbs [SDK_RS_ACCESS_MAX_LIMBS]uint32 // RsAccessLimb
}
const SDK_RS_ACCESS_MAX_LIMBS = 1
// RS_SHARE_POLICY is RS_SHARE_POLICY, from
// src/common/sdk/nvidia/inc/rs_access.h.
//
// +marshal
type RS_SHARE_POLICY struct {
Target uint32
AccessMask RS_ACCESS_MASK
Type uint16
Action uint8
Pad [1]byte
}
// NvUUID is defined in src/common/inc/nvCpuUuid.h.
//
// +marshal
type NvUUID [16]uint8
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