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) local_flush_tlb_mm((tlb)->mm)
27 * This pair is called at time of munmap/exit to flush cache and TLB entries
28 * for mappings being torn down.
29 * 1) cache-flush part -implemented via tlb_start_vma( ) can be NOP (for now)
30 * as we don't support aliasing configs in our VIPT D$.
31 * 2) tlb-flush part - implemted via tlb_end_vma( ) can be NOP as well-
32 * albiet for difft reasons - its better handled by moving to new ASID
34 * Note, read http://lkml.org/lkml/2004/1/15/6
36 #define tlb_start_vma(tlb, vma)
37 #define tlb_end_vma(tlb, vma)
39 #define __tlb_remove_tlb_entry(tlb, ptep, address)
41 #include <linux/pagemap.h>
42 #include <asm-generic/tlb.h>
44 #ifdef CONFIG_ARC_DBG_TLB_PARANOIA
45 void tlb_paranoid_check(unsigned int pid_sw, unsigned long address);
47 #define tlb_paranoid_check(a, b)
50 void arc_mmu_init(void);
51 extern char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len);
52 void __init read_decode_mmu_bcr(void);
54 #endif /* __ASSEMBLY__ */
56 #endif /* __KERNEL__ */
58 #endif /* _ASM_ARC_TLB_H */