Contributors: 7
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Russell King |
65 |
35.33% |
6 |
37.50% |
| Peter Zijlstra |
55 |
29.89% |
2 |
12.50% |
| Catalin Marinas |
39 |
21.20% |
3 |
18.75% |
| Hyok S. Choi |
15 |
8.15% |
1 |
6.25% |
| Aneesh Kumar K.V |
5 |
2.72% |
2 |
12.50% |
| Will Deacon |
3 |
1.63% |
1 |
6.25% |
| Thomas Gleixner |
2 |
1.09% |
1 |
6.25% |
| Total |
184 |
|
16 |
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/tlb.h
*
* Copyright (C) 2002 Russell King
*
* Experimentation shows that on a StrongARM, it appears to be faster
* to use the "invalidate whole tlb" rather than "invalidate single
* tlb" for this.
*
* This appears true for both the process fork+exit case, as well as
* the munmap-large-area case.
*/
#ifndef __ASMARM_TLB_H
#define __ASMARM_TLB_H
#include <asm/cacheflush.h>
#ifndef CONFIG_MMU
#include <linux/pagemap.h>
#define tlb_flush(tlb) ((void) tlb)
#include <asm-generic/tlb.h>
#else /* !CONFIG_MMU */
#include <linux/swap.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
static inline void __tlb_remove_table(void *_table)
{
free_page_and_swap_cache((struct page *)_table);
}
#include <asm-generic/tlb.h>
#ifndef CONFIG_HAVE_RCU_TABLE_FREE
#define tlb_remove_table(tlb, entry) tlb_remove_page(tlb, entry)
#endif
static inline void
__pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long addr)
{
pgtable_page_dtor(pte);
#ifndef CONFIG_ARM_LPAE
/*
* With the classic ARM MMU, a pte page has two corresponding pmd
* entries, each covering 1MB.
*/
addr = (addr & PMD_MASK) + SZ_1M;
__tlb_adjust_range(tlb, addr - PAGE_SIZE, 2 * PAGE_SIZE);
#endif
tlb_remove_table(tlb, pte);
}
static inline void
__pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmdp, unsigned long addr)
{
#ifdef CONFIG_ARM_LPAE
struct page *page = virt_to_page(pmdp);
tlb_remove_table(tlb, page);
#endif
}
#endif /* CONFIG_MMU */
#endif