Release 4.18 arch/powerpc/mm/hugetlbpage-radix.c
// SPDX-License-Identifier: GPL-2.0
#include <linux/mm.h>
#include <linux/hugetlb.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
#include <asm/machdep.h>
#include <asm/mman.h>
#include <asm/tlb.h>
void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
{
int psize;
struct hstate *hstate = hstate_file(vma->vm_file);
psize = hstate_get_psize(hstate);
radix__flush_tlb_page_psize(vma->vm_mm, vmaddr, psize);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 47 | 100.00% | 3 | 100.00% |
| Total | 47 | 100.00% | 3 | 100.00% |
void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
{
int psize;
struct hstate *hstate = hstate_file(vma->vm_file);
psize = hstate_get_psize(hstate);
radix__local_flush_tlb_page_psize(vma->vm_mm, vmaddr, psize);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 47 | 100.00% | 3 | 100.00% |
| Total | 47 | 100.00% | 3 | 100.00% |
void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
int psize;
struct hstate *hstate = hstate_file(vma->vm_file);
psize = hstate_get_psize(hstate);
radix__flush_tlb_range_psize(vma->vm_mm, start, end, psize);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 53 | 100.00% | 1 | 100.00% |
| Total | 53 | 100.00% | 1 | 100.00% |
/*
* A vairant of hugetlb_get_unmapped_area doing topdown search
* FIXME!! should we do as x86 does or non hugetlb area does ?
* ie, use topdown or not based on mmap_is_legacy check ?
*/
unsigned long
radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
unsigned long len, unsigned long pgoff,
unsigned long flags)
{
struct mm_struct *mm = current->mm;
struct vm_area_struct *vma;
struct hstate *h = hstate_file(file);
int fixed = (flags & MAP_FIXED);
unsigned long high_limit;
struct vm_unmapped_area_info info;
high_limit = DEFAULT_MAP_WINDOW;
if (addr >= high_limit || (fixed && (addr + len > high_limit)))
high_limit = TASK_SIZE;
if (len & ~huge_page_mask(h))
return -EINVAL;
if (len > high_limit)
return -ENOMEM;
if (fixed) {
if (addr > high_limit - len)
return -ENOMEM;
if (prepare_hugepage_range(file, addr, len))
return -EINVAL;
return addr;
}
if (addr) {
addr = ALIGN(addr, huge_page_size(h));
vma = find_vma(mm, addr);
if (high_limit - len >= addr &&
(!vma || addr + len <= vm_start_gap(vma)))
return addr;
}
/*
* We are always doing an topdown search here. Slice code
* does that too.
*/
info.flags = VM_UNMAPPED_AREA_TOPDOWN;
info.length = len;
info.low_limit = PAGE_SIZE;
info.high_limit = mm->mmap_base + (high_limit - DEFAULT_MAP_WINDOW);
info.align_mask = PAGE_MASK & ~huge_page_mask(h);
info.align_offset = 0;
return vm_unmapped_area(&info);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 212 | 80.30% | 2 | 50.00% |
| Nicholas Piggin | 49 | 18.56% | 1 | 25.00% |
| Hugh Dickins | 3 | 1.14% | 1 | 25.00% |
| Total | 264 | 100.00% | 4 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Aneesh Kumar K.V | 384 | 87.87% | 5 | 62.50% |
| Nicholas Piggin | 49 | 11.21% | 1 | 12.50% |
| Hugh Dickins | 3 | 0.69% | 1 | 12.50% |
| Greg Kroah-Hartman | 1 | 0.23% | 1 | 12.50% |
| Total | 437 | 100.00% | 8 | 100.00% |
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