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This commit is contained in:
Bernhard Stoeckner
2025-04-17 19:35:38 +02:00
parent e8113f665d
commit 4159579888
1142 changed files with 309085 additions and 272273 deletions
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22
kernel-open/nvidia-uvm/uvm_populate_pageable.h
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@@ -1,5 +1,5 @@
/*******************************************************************************
Copyright (c) 2018 NVIDIA Corporation
Copyright (c) 2018-2024 NVIDIA Corporation
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
@@ -24,6 +24,8 @@
#ifndef __UVM_POPULATE_PAGEABLE_H__
#define __UVM_POPULATE_PAGEABLE_H__
#include "nvstatus.h"
// Types of permissions to influence the address range population.
// PERMISSIONS_INHERIT will use the permissions of the vma.
// PERMISSIONS_ANY will populate the pages with any permissions allowed by the
@@ -40,31 +42,27 @@ typedef enum
// Populate the pages of the given vma that overlap with the
// [start:start+length) range. If any of the pages was not populated, we return
// NV_ERR_NO_MEMORY. See the comment below for details on the touch argument.
// NV_ERR_NO_MEMORY.
//
// flags is the set of UVM_POPULATE_PAGEABLE_FLAG_* values.
//
// Locking: vma->vm_mm->mmap_lock must be held in read or write mode
NV_STATUS uvm_populate_pageable_vma(struct vm_area_struct *vma,
unsigned long start,
unsigned long length,
int min_prot,
bool touch,
uvm_populate_permissions_t populate_permissions);
uvm_populate_permissions_t populate_permissions,
NvU32 flags);
// Populate all the pages in the given range by calling get_user_pages. The
// range must be fully backed by vmas. If any of the pages was not populated, we
// return NV_ERR_NO_MEMORY. The caller can request a touch of the populated
// pages. This can be useful in virtualization environment. See
// uvm_ats_service_fault() for example usage.
// return NV_ERR_NO_MEMORY.
//
// flags is the set of UVM_POPULATE_PAGEABLE_FLAG_* values. Only
// UVM_POPULATE_PAGEABLE_FLAG_ALLOW_MANAGED is currently supported.
// flags is the set of UVM_POPULATE_PAGEABLE_FLAG_* values.
//
// Locking: mm->mmap_lock must be held in read or write mode
NV_STATUS uvm_populate_pageable(struct mm_struct *mm,
unsigned long start,
unsigned long length,
int min_prot,
bool touch,
uvm_populate_permissions_t populate_permissions,
NvU32 flags);
#endif