| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: tsunami.h,v 1.5 1996/08/29 09:49:03 davem Exp $ |
| 2 | * tsunami.h: Module specific definitions for Tsunami V8 Sparcs |
| 3 | * |
| 4 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| 5 | */ |
| 6 | |
| 7 | #ifndef _SPARC_TSUNAMI_H |
| 8 | #define _SPARC_TSUNAMI_H |
| 9 | |
| 10 | #include <asm/asi.h> |
| 11 | |
| 12 | /* The MMU control register on the Tsunami: |
| 13 | * |
| 14 | * ----------------------------------------------------------------------- |
| 15 | * | implvers |SW|AV|DV|MV| RSV |PC|ITD|ALC| RSV |PE| RC |IE|DE|RSV|NF|ME| |
| 16 | * ----------------------------------------------------------------------- |
| 17 | * 31 24 23 22 21 20 19-18 17 16 14 13-12 11 10-9 8 7 6-2 1 0 |
| 18 | * |
| 19 | * SW: Enable Software Table Walks 0=off 1=on |
| 20 | * AV: Address View bit |
| 21 | * DV: Data View bit |
| 22 | * MV: Memory View bit |
| 23 | * PC: Parity Control |
| 24 | * ITD: ITBR disable |
| 25 | * ALC: Alternate Cacheable |
| 26 | * PE: Parity Enable 0=off 1=on |
| 27 | * RC: Refresh Control |
| 28 | * IE: Instruction cache Enable 0=off 1=on |
| 29 | * DE: Data cache Enable 0=off 1=on |
| 30 | * NF: No Fault, same as all other SRMMUs |
| 31 | * ME: MMU Enable, same as all other SRMMUs |
| 32 | */ |
| 33 | |
| 34 | #define TSUNAMI_SW 0x00800000 |
| 35 | #define TSUNAMI_AV 0x00400000 |
| 36 | #define TSUNAMI_DV 0x00200000 |
| 37 | #define TSUNAMI_MV 0x00100000 |
| 38 | #define TSUNAMI_PC 0x00020000 |
| 39 | #define TSUNAMI_ITD 0x00010000 |
| 40 | #define TSUNAMI_ALC 0x00008000 |
| 41 | #define TSUNAMI_PE 0x00001000 |
| 42 | #define TSUNAMI_RCMASK 0x00000C00 |
| 43 | #define TSUNAMI_IENAB 0x00000200 |
| 44 | #define TSUNAMI_DENAB 0x00000100 |
| 45 | #define TSUNAMI_NF 0x00000002 |
| 46 | #define TSUNAMI_ME 0x00000001 |
| 47 | |
| 48 | static inline void tsunami_flush_icache(void) |
| 49 | { |
| 50 | __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" |
| 51 | : /* no outputs */ |
| 52 | : "i" (ASI_M_IC_FLCLEAR) |
| 53 | : "memory"); |
| 54 | } |
| 55 | |
| 56 | static inline void tsunami_flush_dcache(void) |
| 57 | { |
| 58 | __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" |
| 59 | : /* no outputs */ |
| 60 | : "i" (ASI_M_DC_FLCLEAR) |
| 61 | : "memory"); |
| 62 | } |
| 63 | |
| 64 | #endif /* !(_SPARC_TSUNAMI_H) */ |