75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*
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* Copyright (C) 2004 Olof Johansson <olof@lixom.net>, IBM Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _POWERPC_SYSDEV_DART_H
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#define _POWERPC_SYSDEV_DART_H
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/* Offset from base to control register */
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#define DART_CNTL 0
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/* Offset from base to exception register */
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#define DART_EXCP_U3 0x10
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/* Offset from base to TLB tag registers */
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#define DART_TAGS_U3 0x1000
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/* U4 registers */
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#define DART_BASE_U4 0x10
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#define DART_SIZE_U4 0x20
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#define DART_EXCP_U4 0x30
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#define DART_TAGS_U4 0x1000
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/* Control Register fields */
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/* U3 registers */
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#define DART_CNTL_U3_BASE_MASK 0xfffff
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#define DART_CNTL_U3_BASE_SHIFT 12
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#define DART_CNTL_U3_FLUSHTLB 0x400
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#define DART_CNTL_U3_ENABLE 0x200
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#define DART_CNTL_U3_SIZE_MASK 0x1ff
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#define DART_CNTL_U3_SIZE_SHIFT 0
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/* U4 registers */
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#define DART_BASE_U4_BASE_MASK 0xffffff
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#define DART_BASE_U4_BASE_SHIFT 0
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#define DART_CNTL_U4_FLUSHTLB 0x20000000
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#define DART_CNTL_U4_ENABLE 0x80000000
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#define DART_SIZE_U4_SIZE_MASK 0x1fff
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#define DART_SIZE_U4_SIZE_SHIFT 0
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#define DART_REG(r) (dart + ((r) >> 2))
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#define DART_IN(r) (in_be32(DART_REG(r)))
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#define DART_OUT(r,v) (out_be32(DART_REG(r), (v)))
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/* size of table in pages */
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/* DART table fields */
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#define DARTMAP_VALID 0x80000000
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#define DARTMAP_RPNMASK 0x00ffffff
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#define DART_PAGE_SHIFT 12
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#define DART_PAGE_SIZE (1 << DART_PAGE_SHIFT)
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#define DART_PAGE_FACTOR (PAGE_SHIFT - DART_PAGE_SHIFT)
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#endif /* _POWERPC_SYSDEV_DART_H */
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