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_MMU_H
12 #if defined(CONFIG_ARC_MMU_V1)
13 #define CONFIG_ARC_MMU_VER 1
14 #elif defined(CONFIG_ARC_MMU_V2)
15 #define CONFIG_ARC_MMU_VER 2
16 #elif defined(CONFIG_ARC_MMU_V3)
17 #define CONFIG_ARC_MMU_VER 3
20 /* MMU Management regs */
21 #define ARC_REG_MMU_BCR 0x06f
22 #define ARC_REG_TLBPD0 0x405
23 #define ARC_REG_TLBPD1 0x406
24 #define ARC_REG_TLBINDEX 0x407
25 #define ARC_REG_TLBCOMMAND 0x408
26 #define ARC_REG_PID 0x409
27 #define ARC_REG_SCRATCH_DATA0 0x418
29 /* Bits in MMU PID register */
30 #define MMU_ENABLE (1 << 31) /* Enable MMU for process */
32 /* Error code if probe fails */
33 #define TLB_LKUP_ERR 0x80000000
35 #define TLB_DUP_ERR (TLB_LKUP_ERR | 0x00000001)
40 #define TLBGetIndex 0x3
43 #if (CONFIG_ARC_MMU_VER >= 2)
44 #define TLBWriteNI 0x5 /* write JTLB without inv uTLBs */
45 #define TLBIVUTLB 0x6 /* explicitly inv uTLBs */
51 unsigned long asid
[NR_CPUS
]; /* 8 bit MMU PID + Generation cycle */
54 #ifdef CONFIG_ARC_DBG_TLB_PARANOIA
55 void tlb_paranoid_check(unsigned int mm_asid
, unsigned long address
);
57 #define tlb_paranoid_check(a, b)
60 void arc_mmu_init(void);
61 extern char *arc_mmu_mumbojumbo(int cpu_id
, char *buf
, int len
);
62 void read_decode_mmu_bcr(void);
64 #endif /* !__ASSEMBLY__ */