Contributors: 6
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Peter Zijlstra |
77 |
53.47% |
1 |
14.29% |
| Thomas Gleixner |
42 |
29.17% |
2 |
28.57% |
| Vitaly Kuznetsov |
17 |
11.81% |
1 |
14.29% |
| Rik Van Riel |
4 |
2.78% |
1 |
14.29% |
| H. Peter Anvin |
3 |
2.08% |
1 |
14.29% |
| Greg Kroah-Hartman |
1 |
0.69% |
1 |
14.29% |
| Total |
144 |
|
7 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TLB_H
#define _ASM_X86_TLB_H
#define tlb_start_vma(tlb, vma) do { } while (0)
#define tlb_end_vma(tlb, vma) do { } while (0)
#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
static inline void tlb_flush(struct mmu_gather *tlb);
#include <asm-generic/tlb.h>
static inline void tlb_flush(struct mmu_gather *tlb)
{
unsigned long start = 0UL, end = TLB_FLUSH_ALL;
unsigned int stride_shift = tlb_get_unmap_shift(tlb);
if (!tlb->fullmm && !tlb->need_flush_all) {
start = tlb->start;
end = tlb->end;
}
flush_tlb_mm_range(tlb->mm, start, end, stride_shift, tlb->freed_tables);
}
/*
* While x86 architecture in general requires an IPI to perform TLB
* shootdown, enablement code for several hypervisors overrides
* .flush_tlb_others hook in pv_mmu_ops and implements it by issuing
* a hypercall. To keep software pagetable walkers safe in this case we
* switch to RCU based table free (HAVE_RCU_TABLE_FREE). See the comment
* below 'ifdef CONFIG_HAVE_RCU_TABLE_FREE' in include/asm-generic/tlb.h
* for more details.
*/
static inline void __tlb_remove_table(void *table)
{
free_page_and_swap_cache(table);
}
#endif /* _ASM_X86_TLB_H */