58 lines
1.6 KiB
C
58 lines
1.6 KiB
C
/*
|
|
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef _ASM_ARC_TLB_H
|
|
#define _ASM_ARC_TLB_H
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/pgtable.h>
|
|
|
|
/* Masks for actual TLB "PD"s */
|
|
#define PTE_BITS_IN_PD0 (_PAGE_GLOBAL | _PAGE_PRESENT)
|
|
#define PTE_BITS_IN_PD1 (PAGE_MASK | _PAGE_CACHEABLE | \
|
|
_PAGE_EXECUTE | _PAGE_WRITE | _PAGE_READ | \
|
|
_PAGE_K_EXECUTE | _PAGE_K_WRITE | _PAGE_K_READ)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#define tlb_flush(tlb) local_flush_tlb_mm((tlb)->mm)
|
|
|
|
/*
|
|
* This pair is called at time of munmap/exit to flush cache and TLB entries
|
|
* for mappings being torn down.
|
|
* 1) cache-flush part -implemented via tlb_start_vma( ) can be NOP (for now)
|
|
* as we don't support aliasing configs in our VIPT D$.
|
|
* 2) tlb-flush part - implemted via tlb_end_vma( ) can be NOP as well-
|
|
* albiet for difft reasons - its better handled by moving to new ASID
|
|
*
|
|
* Note, read http://lkml.org/lkml/2004/1/15/6
|
|
*/
|
|
#define tlb_start_vma(tlb, vma)
|
|
#define tlb_end_vma(tlb, vma)
|
|
|
|
#define __tlb_remove_tlb_entry(tlb, ptep, address)
|
|
|
|
#include <linux/pagemap.h>
|
|
#include <asm-generic/tlb.h>
|
|
|
|
#ifdef CONFIG_ARC_DBG_TLB_PARANOIA
|
|
void tlb_paranoid_check(unsigned int pid_sw, unsigned long address);
|
|
#else
|
|
#define tlb_paranoid_check(a, b)
|
|
#endif
|
|
|
|
void arc_mmu_init(void);
|
|
extern char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len);
|
|
void __init read_decode_mmu_bcr(void);
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_ARC_TLB_H */
|