2 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
10 #define _ASM_ARC_TLB_H
14 #include <asm/pgtable.h>
16 /* Masks for actual TLB "PD"s */
17 #define PTE_BITS_IN_PD0 (_PAGE_GLOBAL | _PAGE_PRESENT)
18 #define PTE_BITS_IN_PD1 (PAGE_MASK | _PAGE_CACHEABLE | \
19 _PAGE_EXECUTE | _PAGE_WRITE | _PAGE_READ | \
20 _PAGE_K_EXECUTE | _PAGE_K_WRITE | _PAGE_K_READ)
24 #define tlb_flush(tlb) \
27 flush_tlb_mm((tlb)->mm); \
31 * This pair is called at time of munmap/exit to flush cache and TLB entries
32 * for mappings being torn down.
33 * 1) cache-flush part -implemented via tlb_start_vma( ) for VIPT aliasing D$
34 * 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range
36 * Note, read http://lkml.org/lkml/2004/1/15/6
38 #ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
39 #define tlb_start_vma(tlb, vma)
41 #define tlb_start_vma(tlb, vma) \
44 flush_cache_range(vma, vma->vm_start, vma->vm_end); \
48 #define tlb_end_vma(tlb, vma) \
51 flush_tlb_range(vma, vma->vm_start, vma->vm_end); \
54 #define __tlb_remove_tlb_entry(tlb, ptep, address)
56 #include <linux/pagemap.h>
57 #include <asm-generic/tlb.h>
59 #ifdef CONFIG_ARC_DBG_TLB_PARANOIA
60 void tlb_paranoid_check(unsigned int pid_sw, unsigned long address);
62 #define tlb_paranoid_check(a, b)
65 void arc_mmu_init(void);
66 extern char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len);
67 void __init read_decode_mmu_bcr(void);
69 #endif /* __ASSEMBLY__ */
71 #endif /* __KERNEL__ */
73 #endif /* _ASM_ARC_TLB_H */