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This commit is contained in:
Maneet Singh
2025-08-04 11:15:02 -07:00
parent d890313300
commit 307159f262
1315 changed files with 477791 additions and 279973 deletions
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23
kernel-open/nvidia-uvm/uvm_populate_pageable.c
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@@ -1,5 +1,5 @@
/*******************************************************************************
Copyright (c) 2018-2024 NVIDIA Corporation
Copyright (c) 2018-2025 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
@@ -30,9 +30,7 @@
#include "uvm_va_space.h"
#include "uvm_populate_pageable.h"
#if defined(NV_HANDLE_MM_FAULT_HAS_MM_ARG)
#define UVM_HANDLE_MM_FAULT(vma, addr, flags) handle_mm_fault(vma->vm_mm, vma, addr, flags)
#elif defined(NV_HANDLE_MM_FAULT_HAS_PT_REGS_ARG)
#if defined(NV_HANDLE_MM_FAULT_HAS_PT_REGS_ARG)
#define UVM_HANDLE_MM_FAULT(vma, addr, flags) handle_mm_fault(vma, addr, flags, NULL)
#else
#define UVM_HANDLE_MM_FAULT(vma, addr, flags) handle_mm_fault(vma, addr, flags)
@@ -55,30 +53,19 @@ static bool is_write_populate(struct vm_area_struct *vma, uvm_populate_permissio
static NV_STATUS handle_fault(struct vm_area_struct *vma, unsigned long start, unsigned long num_pages, bool is_write)
{
NV_STATUS status = NV_OK;
unsigned long i;
unsigned int ret = 0;
unsigned int fault_flags = is_write ? FAULT_FLAG_WRITE : 0;
#if defined(NV_MM_HAS_FAULT_FLAG_REMOTE)
fault_flags |= (FAULT_FLAG_REMOTE);
#endif
for (i = 0; i < num_pages; i++) {
ret = UVM_HANDLE_MM_FAULT(vma, start + (i * PAGE_SIZE), fault_flags);
if (ret & VM_FAULT_ERROR) {
#if defined(NV_VM_FAULT_TO_ERRNO_PRESENT)
int err = vm_fault_to_errno(ret, fault_flags);
status = errno_to_nv_status(err);
#else
status = errno_to_nv_status(-EFAULT);
#endif
break;
}
if (ret & VM_FAULT_ERROR)
return errno_to_nv_status(vm_fault_to_errno(ret, fault_flags));
}
return status;
return NV_OK;
}
static bool should_use_gup(struct vm_area_struct *vma, NvU32 flags)