Contributors: 11
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Aneesh Kumar K.V |
217 |
71.38% |
10 |
41.67% |
| Linus Torvalds (pre-git) |
32 |
10.53% |
4 |
16.67% |
| Jon Tollefson |
21 |
6.91% |
1 |
4.17% |
| Kefeng Wang |
9 |
2.96% |
1 |
4.17% |
| Nicholas Piggin |
7 |
2.30% |
1 |
4.17% |
| Ryan Roberts |
5 |
1.64% |
1 |
4.17% |
| David Gibson |
4 |
1.32% |
1 |
4.17% |
| Paul Mackerras |
4 |
1.32% |
1 |
4.17% |
| Alistair Popple |
3 |
0.99% |
2 |
8.33% |
| Greg Kroah-Hartman |
1 |
0.33% |
1 |
4.17% |
| Anton Blanchard |
1 |
0.33% |
1 |
4.17% |
| Total |
304 |
|
24 |
|
// SPDX-License-Identifier: GPL-2.0
#include <linux/mm.h>
#include <linux/hugetlb.h>
#include <linux/security.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);
}
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);
}
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);
/*
* Flush PWC even if we get PUD_SIZE hugetlb invalidate to keep this simpler.
*/
if (end - start >= PUD_SIZE)
radix__flush_tlb_pwc_range_psize(vma->vm_mm, start, end, psize);
else
radix__flush_tlb_range_psize(vma->vm_mm, start, end, psize);
mmu_notifier_arch_invalidate_secondary_tlbs(vma->vm_mm, start, end);
}
void radix__huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep,
pte_t old_pte, pte_t pte)
{
struct mm_struct *mm = vma->vm_mm;
unsigned long psize = huge_page_size(hstate_vma(vma));
/*
* POWER9 NMMU must flush the TLB after clearing the PTE before
* installing a PTE with more relaxed access permissions, see
* radix__ptep_set_access_flags.
*/
if (!cpu_has_feature(CPU_FTR_ARCH_31) &&
is_pte_rw_upgrade(pte_val(old_pte), pte_val(pte)) &&
atomic_read(&mm->context.copros) > 0)
radix__flush_hugetlb_page(vma, addr);
set_huge_pte_at(vma->vm_mm, addr, ptep, pte, psize);
}