dart.h (1568B)
1/* SPDX-License-Identifier: GPL-2.0-or-later */ 2/* 3 * Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation 4 */ 5 6#ifndef _POWERPC_SYSDEV_DART_H 7#define _POWERPC_SYSDEV_DART_H 8 9 10/* Offset from base to control register */ 11#define DART_CNTL 0 12 13/* Offset from base to exception register */ 14#define DART_EXCP_U3 0x10 15/* Offset from base to TLB tag registers */ 16#define DART_TAGS_U3 0x1000 17 18/* U4 registers */ 19#define DART_BASE_U4 0x10 20#define DART_SIZE_U4 0x20 21#define DART_EXCP_U4 0x30 22#define DART_TAGS_U4 0x1000 23 24/* Control Register fields */ 25 26/* U3 registers */ 27#define DART_CNTL_U3_BASE_MASK 0xfffff 28#define DART_CNTL_U3_BASE_SHIFT 12 29#define DART_CNTL_U3_FLUSHTLB 0x400 30#define DART_CNTL_U3_ENABLE 0x200 31#define DART_CNTL_U3_SIZE_MASK 0x1ff 32#define DART_CNTL_U3_SIZE_SHIFT 0 33 34/* U4 registers */ 35#define DART_BASE_U4_BASE_MASK 0xffffff 36#define DART_BASE_U4_BASE_SHIFT 0 37#define DART_CNTL_U4_ENABLE 0x80000000 38#define DART_CNTL_U4_IONE 0x40000000 39#define DART_CNTL_U4_FLUSHTLB 0x20000000 40#define DART_CNTL_U4_IDLE 0x10000000 41#define DART_CNTL_U4_PAR_EN 0x08000000 42#define DART_CNTL_U4_IONE_MASK 0x07ffffff 43#define DART_SIZE_U4_SIZE_MASK 0x1fff 44#define DART_SIZE_U4_SIZE_SHIFT 0 45 46#define DART_REG(r) (dart + ((r) >> 2)) 47#define DART_IN(r) (in_be32(DART_REG(r))) 48#define DART_OUT(r,v) (out_be32(DART_REG(r), (v))) 49 50 51/* size of table in pages */ 52 53 54/* DART table fields */ 55 56#define DARTMAP_VALID 0x80000000 57#define DARTMAP_RPNMASK 0x00ffffff 58 59 60#define DART_PAGE_SHIFT 12 61#define DART_PAGE_SIZE (1 << DART_PAGE_SHIFT) 62 63 64#endif /* _POWERPC_SYSDEV_DART_H */