mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-21 10:19:04 +00:00
168 lines
6.3 KiB
C
168 lines
6.3 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause AND BSD-4-Clause
|
|
*
|
|
* Copyright (c) 1999 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Jason R. Thorpe.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*-
|
|
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
|
|
* Copyright (C) 1995, 1996 TooLs GmbH.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by TooLs GmbH.
|
|
* 4. The name of TooLs GmbH may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
|
* IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
|
|
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
|
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
* $NetBSD: bat.h,v 1.2 1999/12/18 01:36:06 thorpej Exp $
|
|
*/
|
|
|
|
#ifndef _MACHINE_BAT_H_
|
|
#define _MACHINE_BAT_H_
|
|
|
|
#ifndef LOCORE
|
|
struct bat {
|
|
u_int32_t batu;
|
|
u_int32_t batl;
|
|
};
|
|
#endif
|
|
|
|
/* Lower BAT bits (all but PowerPC 601): */
|
|
#define BAT_PBS 0xfffe0000 /* physical block start */
|
|
#define BAT_W 0x00000040 /* 1 = write-through, 0 = write-back */
|
|
#define BAT_I 0x00000020 /* cache inhibit */
|
|
#define BAT_M 0x00000010 /* memory coherency enable */
|
|
#define BAT_G 0x00000008 /* guarded region */
|
|
|
|
#define BAT_PP_NONE 0x00000000 /* no access permission */
|
|
#define BAT_PP_RO_S 0x00000001 /* read-only (soft) */
|
|
#define BAT_PP_RW 0x00000002 /* read/write */
|
|
#define BAT_PP_RO 0x00000003 /* read-only */
|
|
|
|
/* Upper BAT bits (all but PowerPC 601): */
|
|
#define BAT_EBS 0xfffe0000 /* effective block start */
|
|
#define BAT_BL 0x00001ffc /* block length */
|
|
#define BAT_Vs 0x00000002 /* valid in supervisor mode */
|
|
#define BAT_Vu 0x00000001 /* valid in user mode */
|
|
|
|
#define BAT_V (BAT_Vs|BAT_Vu)
|
|
|
|
/* Block Length encoding (all but PowerPC 601): */
|
|
#define BAT_BL_128K 0x00000000
|
|
#define BAT_BL_256K 0x00000004
|
|
#define BAT_BL_512K 0x0000000c
|
|
#define BAT_BL_1M 0x0000001c
|
|
#define BAT_BL_2M 0x0000003c
|
|
#define BAT_BL_4M 0x0000007c
|
|
#define BAT_BL_8M 0x000000fc
|
|
#define BAT_BL_16M 0x000001fc
|
|
#define BAT_BL_32M 0x000003fc
|
|
#define BAT_BL_64M 0x000007fc
|
|
#define BAT_BL_128M 0x00000ffc
|
|
#define BAT_BL_256M 0x00001ffc
|
|
|
|
#define BATU(va, len, v) \
|
|
(((va) & BAT_EBS) | ((len) & BAT_BL) | ((v) & BAT_V))
|
|
|
|
#define BATL(pa, wimg, pp) \
|
|
(((pa) & BAT_PBS) | (wimg) | (pp))
|
|
|
|
/* Lower BAT bits (PowerPC 601): */
|
|
#define BAT601_PBN 0xfffe0000 /* physical block number */
|
|
#define BAT601_V 0x00000040 /* valid */
|
|
#define BAT601_BSM 0x0000003f /* block size mask */
|
|
|
|
/* Upper BAT bits (PowerPC 601): */
|
|
#define BAT601_BLPI 0xfffe0000 /* block logical page index */
|
|
#define BAT601_W 0x00000040 /* 1 = write-through, 0 = write-back */
|
|
#define BAT601_I 0x00000020 /* cache inhibit */
|
|
#define BAT601_M 0x00000010 /* memory coherency enable */
|
|
#define BAT601_Ks 0x00000008 /* key-supervisor */
|
|
#define BAT601_Ku 0x00000004 /* key-user */
|
|
|
|
/*
|
|
* Permission bits on the PowerPC 601 are modified by the appropriate
|
|
* Key bit:
|
|
*
|
|
* Key PP Access
|
|
* 0 NONE read/write
|
|
* 0 RO_S read/write
|
|
* 0 RW read/write
|
|
* 0 RO read-only
|
|
*
|
|
* 1 NONE none
|
|
* 1 RO_S read-only
|
|
* 1 RW read/write
|
|
* 1 RO read-only
|
|
*/
|
|
#define BAT601_PP_NONE 0x00000000 /* no access permission */
|
|
#define BAT601_PP_RO_S 0x00000001 /* read-only (soft) */
|
|
#define BAT601_PP_RW 0x00000002 /* read/write */
|
|
#define BAT601_PP_RO 0x00000003 /* read-only */
|
|
|
|
/* Block Size Mask encoding (PowerPC 601): */
|
|
#define BAT601_BSM_128K 0x00000000
|
|
#define BAT601_BSM_256K 0x00000001
|
|
#define BAT601_BSM_512K 0x00000003
|
|
#define BAT601_BSM_1M 0x00000007
|
|
#define BAT601_BSM_2M 0x0000000f
|
|
#define BAT601_BSM_4M 0x0000001f
|
|
#define BAT601_BSM_8M 0x0000003f
|
|
|
|
#define BATU601(va, wim, key, pp) \
|
|
(((va) & BAT601_BLPI) | (wim) | (key) | (pp))
|
|
|
|
#define BATL601(pa, size, v) \
|
|
(((pa) & BAT601_PBN) | (v) | (size))
|
|
|
|
#if defined(_KERNEL) && !defined(LOCORE)
|
|
extern struct bat battable[16];
|
|
#endif
|
|
|
|
#endif /* _MACHINE_BAT_H_ */
|