1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_TLB_H
 3#define __ASM_TLB_H
 4
 5#include <asm/cpu-features.h>
 6#include <asm/mipsregs.h>
 7
 8/*
 9 * MIPS doesn't need any special per-pte or per-vma handling, except
10 * we need to flush cache for area to be unmapped.
11 */
12#define tlb_start_vma(tlb, vma)					\
13	do {							\
14		if (!tlb->fullmm)				\
15			flush_cache_range(vma, vma->vm_start, vma->vm_end); \
16	}  while (0)
17#define tlb_end_vma(tlb, vma) do { } while (0)
18#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
19
20/*
21 * .. because we flush the whole mm when it fills up.
22 */
23#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
24
25#define _UNIQUE_ENTRYHI(base, idx)					\
26		(((base) + ((idx) << (PAGE_SHIFT + 1))) |		\
27		 (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
28#define UNIQUE_ENTRYHI(idx)		_UNIQUE_ENTRYHI(CKSEG0, idx)
29#define UNIQUE_GUEST_ENTRYHI(idx)	_UNIQUE_ENTRYHI(CKSEG1, idx)
30
31static inline unsigned int num_wired_entries(void)
32{
33	unsigned int wired = read_c0_wired();
34
35	if (cpu_has_mips_r6)
36		wired &= MIPSR6_WIRED_WIRED;
37
38	return wired;
39}
40
41#include <asm-generic/tlb.h>
42
43#endif /* __ASM_TLB_H */

 
 1#ifndef __ASM_TLB_H
 2#define __ASM_TLB_H
 3
 4#include <asm/cpu-features.h>
 5#include <asm/mipsregs.h>
 6
 7/*
 8 * MIPS doesn't need any special per-pte or per-vma handling, except
 9 * we need to flush cache for area to be unmapped.
10 */
11#define tlb_start_vma(tlb, vma)					\
12	do {							\
13		if (!tlb->fullmm)				\
14			flush_cache_range(vma, vma->vm_start, vma->vm_end); \
15	}  while (0)
16#define tlb_end_vma(tlb, vma) do { } while (0)
17#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
18
19/*
20 * .. because we flush the whole mm when it fills up.
21 */
22#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
23
24#define UNIQUE_ENTRYHI(idx)						\
25		((CKSEG0 + ((idx) << (PAGE_SHIFT + 1))) |		\
26		 (cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
 
 
27
28static inline unsigned int num_wired_entries(void)
29{
30	unsigned int wired = read_c0_wired();
31
32	if (cpu_has_mips_r6)
33		wired &= MIPSR6_WIRED_WIRED;
34
35	return wired;
36}
37
38#include <asm-generic/tlb.h>
39
40#endif /* __ASM_TLB_H */