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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_TLB_H
#define __ASM_TLB_H
#include <asm/cpu-features.h>
#include <asm/mipsregs.h>
/*
* MIPS doesn't need any special per-pte or per-vma handling, except
* we need to flush cache for area to be unmapped.
*/
#define tlb_start_vma(tlb, vma) \
do { \
if (!tlb->fullmm) \
flush_cache_range(vma, vma->vm_start, vma->vm_end); \
} while (0)
#define tlb_end_vma(tlb, vma) do { } while (0)
#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
/*
* .. because we flush the whole mm when it fills up.
*/
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
#define _UNIQUE_ENTRYHI(base, idx) \
(((base) + ((idx) << (PAGE_SHIFT + 1))) | \
(cpu_has_tlbinv ? MIPS_ENTRYHI_EHINV : 0))
#define UNIQUE_ENTRYHI(idx) _UNIQUE_ENTRYHI(CKSEG0, idx)
#define UNIQUE_GUEST_ENTRYHI(idx) _UNIQUE_ENTRYHI(CKSEG1, idx)
static inline unsigned int num_wired_entries(void)
{
unsigned int wired = read_c0_wired();
if (cpu_has_mips_r6)
wired &= MIPSR6_WIRED_WIRED;
return wired;
}
#include <asm-generic/tlb.h>
#endif /* __ASM_TLB_H */
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