mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Ayush RanjanandgVisor bot
738e1d995f
This creates a more centralized way for nvproxy to return errors to the the user mode driver via the NvStatus field in ioctl structs. As opposed to failing the ioctl with mysterious EINVALs. Also updated the following structs to NOT implement HasStatus interface: - IoctlRegisterFD - RMAPIVersion - IoctlSysParams These don't have a Status field so it is misleading for them to implement HasStatus. Created frontendIoctlSimpleNoStatus() and frontendIoctlInvokeNoStatus() for such structs to use. PiperOrigin-RevId: 738959856
93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
// Copyright 2023 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package nvgpu tracks the ABI of the Nvidia GPU Linux kernel driver:
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// https://github.com/NVIDIA/open-gpu-kernel-modules
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package nvgpu
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import (
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"fmt"
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)
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// Device numbers.
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const (
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NV_MAJOR_DEVICE_NUMBER = 195 // from kernel-open/common/inc/nv.h
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NV_CONTROL_DEVICE_MINOR = 255 // from kernel-open/common/inc/nv-linux.h
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NVIDIA_UVM_PRIMARY_MINOR_NUMBER = 0 // from kernel-open/nvidia-uvm/uvm_common.h
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)
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// Handle is NvHandle, from src/common/sdk/nvidia/inc/nvtypes.h.
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//
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// +marshal
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// +stateify savable
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type Handle struct {
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Val uint32
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}
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// String implements fmt.Stringer.String.
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func (h Handle) String() string {
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return fmt.Sprintf("%#x", h.Val)
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}
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// P64 is NvP64, from src/common/sdk/nvidia/inc/nvtypes.h.
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//
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// +marshal
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type P64 uint64
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// From src/common/sdk/nvidia/inc/nvlimits.h:
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const (
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NV_MAX_DEVICES = 32
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NV_MAX_SUBDEVICES = 8
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)
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// From src/common/sdk/nvidia/inc/alloc/alloc_channel.h.
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const (
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CC_CHAN_ALLOC_IV_SIZE_DWORD = 3
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CC_CHAN_ALLOC_NONCE_SIZE_DWORD = 8
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)
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// RS_ACCESS_MASK is RS_ACCESS_MASK, from
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// src/common/sdk/nvidia/inc/rs_access.h.
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//
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// +marshal
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// +stateify savable
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type RS_ACCESS_MASK struct {
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Limbs [SDK_RS_ACCESS_MAX_LIMBS]uint32 // RsAccessLimb
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}
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const SDK_RS_ACCESS_MAX_LIMBS = 1
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// RS_SHARE_POLICY is RS_SHARE_POLICY, from
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// src/common/sdk/nvidia/inc/rs_access.h.
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//
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// +marshal
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type RS_SHARE_POLICY struct {
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Target uint32
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AccessMask RS_ACCESS_MASK
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Type uint16
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Action uint8
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Pad [1]byte
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}
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// NvUUID is defined in src/common/inc/nvCpuUuid.h.
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//
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// +marshal
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type NvUUID [16]uint8
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// HasStatus is an interface for parameter structs that have a Status field.
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type HasStatus interface {
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GetStatus() uint32
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SetStatus(status uint32)
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}
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