projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 88278ca2 | 2 | /* |
| 1da177e4 LT |
3 | * tsunami.h: Module specific definitions for Tsunami V8 Sparcs |
| 4 | * | |
| 5 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef _SPARC_TSUNAMI_H | |
| 9 | #define _SPARC_TSUNAMI_H | |
| 10 | ||
| 11 | #include <asm/asi.h> | |
| 12 | ||
| 13 | /* The MMU control register on the Tsunami: | |
| 14 | * | |
| 15 | * ----------------------------------------------------------------------- | |
| 16 | * | implvers |SW|AV|DV|MV| RSV |PC|ITD|ALC| RSV |PE| RC |IE|DE|RSV|NF|ME| | |
| 17 | * ----------------------------------------------------------------------- | |
| 18 | * 31 24 23 22 21 20 19-18 17 16 14 13-12 11 10-9 8 7 6-2 1 0 | |
| 19 | * | |
| 20 | * SW: Enable Software Table Walks 0=off 1=on | |
| 21 | * AV: Address View bit | |
| 22 | * DV: Data View bit | |
| 23 | * MV: Memory View bit | |
| 24 | * PC: Parity Control | |
| 25 | * ITD: ITBR disable | |
| 26 | * ALC: Alternate Cacheable | |
| 27 | * PE: Parity Enable 0=off 1=on | |
| 28 | * RC: Refresh Control | |
| 29 | * IE: Instruction cache Enable 0=off 1=on | |
| 30 | * DE: Data cache Enable 0=off 1=on | |
| 31 | * NF: No Fault, same as all other SRMMUs | |
| 32 | * ME: MMU Enable, same as all other SRMMUs | |
| 33 | */ | |
| 34 | ||
| 35 | #define TSUNAMI_SW 0x00800000 | |
| 36 | #define TSUNAMI_AV 0x00400000 | |
| 37 | #define TSUNAMI_DV 0x00200000 | |
| 38 | #define TSUNAMI_MV 0x00100000 | |
| 39 | #define TSUNAMI_PC 0x00020000 | |
| 40 | #define TSUNAMI_ITD 0x00010000 | |
| 41 | #define TSUNAMI_ALC 0x00008000 | |
| 42 | #define TSUNAMI_PE 0x00001000 | |
| 43 | #define TSUNAMI_RCMASK 0x00000C00 | |
| 44 | #define TSUNAMI_IENAB 0x00000200 | |
| 45 | #define TSUNAMI_DENAB 0x00000100 | |
| 46 | #define TSUNAMI_NF 0x00000002 | |
| 47 | #define TSUNAMI_ME 0x00000001 | |
| 48 | ||
| 49 | static inline void tsunami_flush_icache(void) | |
| 50 | { | |
| 51 | __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" | |
| 52 | : /* no outputs */ | |
| 53 | : "i" (ASI_M_IC_FLCLEAR) | |
| 54 | : "memory"); | |
| 55 | } | |
| 56 | ||
| 57 | static inline void tsunami_flush_dcache(void) | |
| 58 | { | |
| 59 | __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" | |
| 60 | : /* no outputs */ | |
| 61 | : "i" (ASI_M_DC_FLCLEAR) | |
| 62 | : "memory"); | |
| 63 | } | |
| 64 | ||
| 65 | #endif /* !(_SPARC_TSUNAMI_H) */ |