/* * 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_MMU_H #define _ASM_ARC_MMU_H #ifndef __ASSEMBLY__ #include <linux/threads.h> /* NR_CPUS */ #endif #if defined(CONFIG_ARC_MMU_V1) #define CONFIG_ARC_MMU_VER 1 #elif defined(CONFIG_ARC_MMU_V2) #define CONFIG_ARC_MMU_VER 2 #elif defined(CONFIG_ARC_MMU_V3) #define CONFIG_ARC_MMU_VER 3 #elif defined(CONFIG_ARC_MMU_V4) #define CONFIG_ARC_MMU_VER 4 #endif /* MMU Management regs */ #define ARC_REG_MMU_BCR 0x06f #if (CONFIG_ARC_MMU_VER < 4) #define ARC_REG_TLBPD0 0x405 #define ARC_REG_TLBPD1 0x406 #define ARC_REG_TLBPD1HI 0 /* Dummy: allows code sharing with ARC700 */ #define ARC_REG_TLBINDEX 0x407 #define ARC_REG_TLBCOMMAND 0x408 #define ARC_REG_PID 0x409 #define ARC_REG_SCRATCH_DATA0 0x418 #else #define ARC_REG_TLBPD0 0x460 #define ARC_REG_TLBPD1 0x461 #define ARC_REG_TLBPD1HI 0x463 #define ARC_REG_TLBINDEX 0x464 #define ARC_REG_TLBCOMMAND 0x465 #define ARC_REG_PID 0x468 #define ARC_REG_SCRATCH_DATA0 0x46c #endif /* Bits in MMU PID register */ #define __TLB_ENABLE (1 << 31) #define __PROG_ENABLE (1 << 30) #define MMU_ENABLE (__TLB_ENABLE | __PROG_ENABLE) /* Error code if probe fails */ #define TLB_LKUP_ERR 0x80000000 #if (CONFIG_ARC_MMU_VER < 4) #define TLB_DUP_ERR (TLB_LKUP_ERR | 0x00000001) #else #define TLB_DUP_ERR (TLB_LKUP_ERR | 0x40000000) #endif /* TLB Commands */ #define TLBWrite 0x1 #define TLBRead 0x2 #define TLBGetIndex 0x3 #define TLBProbe 0x4 #if (CONFIG_ARC_MMU_VER >= 2) #define TLBWriteNI 0x5 /* write JTLB without inv uTLBs */ #define TLBIVUTLB 0x6 /* explicitly inv uTLBs */ #endif #if (CONFIG_ARC_MMU_VER >= 4) #define TLBInsertEntry 0x7 #define TLBDeleteEntry 0x8 #endif #ifndef __ASSEMBLY__ typedef struct { unsigned long asid[NR_CPUS]; /* 8 bit MMU PID + Generation cycle */ } mm_context_t; #ifdef CONFIG_ARC_DBG_TLB_PARANOIA void tlb_paranoid_check(unsigned int mm_asid, 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 read_decode_mmu_bcr(void);
static inline int is_pae40_enabled(void) { return IS_ENABLED(CONFIG_ARC_HAS_PAE40); }Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Vineet Gupta | 15 | 100.00% | 1 | 100.00% |
| Total | 15 | 100.00% | 1 | 100.00% |
| Person | Tokens | Prop | Commits | CommitProp |
| Vineet Gupta | 320 | 100.00% | 11 | 100.00% |
| Total | 320 | 100.00% | 11 | 100.00% |