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/* $OpenBSD: m8820x.h,v 1.6 2005/12/04 12:20:19 miod Exp $ */
/*
* Copyright (c) 2004, Miodrag Vallat.
*
* 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 AUTHOR ``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 AUTHOR 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.
*/
/*
* Mach Operating System
* Copyright (c) 1993-1992 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
#ifndef __M88K_M8820X_H__
#define __M88K_M8820X_H__
/*
* 8820x CMMU definitions
*/
/* CMMU registers */
#define CMMU_IDR (0x000 / 4) /* CMMU id register */
#define CMMU_SCR (0x004 / 4) /* system command register */
#define CMMU_SSR (0x008 / 4) /* system status register */
#define CMMU_SAR (0x00c / 4) /* system address register */
#define CMMU_SCTR (0x104 / 4) /* system control register */
#define CMMU_PFSR (0x108 / 4) /* P bus fault status register */
#define CMMU_PFAR (0x10c / 4) /* P bus fault address register */
#define CMMU_SAPR (0x200 / 4) /* supervisor area pointer register */
#define CMMU_UAPR (0x204 / 4) /* user area pointer register */
#define CMMU_BWP0 (0x400 / 4) /* block ATC writer port 0 */
#define CMMU_BWP1 (0x404 / 4) /* block ATC writer port 1 */
#define CMMU_BWP2 (0x408 / 4) /* block ATC writer port 2 */
#define CMMU_BWP3 (0x40c / 4) /* block ATC writer port 3 */
#define CMMU_BWP4 (0x410 / 4) /* block ATC writer port 4 */
#define CMMU_BWP5 (0x414 / 4) /* block ATC writer port 5 */
#define CMMU_BWP6 (0x418 / 4) /* block ATC writer port 6 */
#define CMMU_BWP7 (0x41c / 4) /* block ATC writer port 7 */
#define CMMU_BWP(n) (CMMU_BWP0 + (n))
#define CMMU_CDP0 (0x800 / 4) /* cache data port 0 */
#define CMMU_CDP1 (0x804 / 4) /* cache data port 1 */
#define CMMU_CDP2 (0x808 / 4) /* cache data port 2 */
#define CMMU_CDP3 (0x80c / 4) /* cache data port 3 */
#define CMMU_CTP0 (0x840 / 4) /* cache tag port 0 */
#define CMMU_CTP1 (0x844 / 4) /* cache tag port 1 */
#define CMMU_CTP2 (0x848 / 4) /* cache tag port 2 */
#define CMMU_CTP3 (0x84c / 4) /* cache tag port 3 */
#define CMMU_CSSP0 (0x880 / 4) /* cache set status register */
#define CMMU_CSSP(n) ((0x880 + (n * 0x10)) / 4)
/* the following only exist on 88204 */
#define CMMU_CSSP1 (0x890 / 4) /* cache set status register */
#define CMMU_CSSP2 (0x8a0 / 4) /* cache set status register */
#define CMMU_CSSP3 (0x8b0 / 4) /* cache set status register */
/* system commands */
#define CMMU_FLUSH_CACHE_INV_LINE 0x14 /* data cache invalidate */
#define CMMU_FLUSH_CACHE_INV_PAGE 0x15
#define CMMU_FLUSH_CACHE_INV_SEGMENT 0x16
#define CMMU_FLUSH_CACHE_INV_ALL 0x17
#define CMMU_FLUSH_CACHE_CB_LINE 0x18 /* data cache copyback */
#define CMMU_FLUSH_CACHE_CB_PAGE 0x19
#define CMMU_FLUSH_CACHE_CB_SEGMENT 0x1a
#define CMMU_FLUSH_CACHE_CB_ALL 0x1b
#define CMMU_FLUSH_CACHE_CBI_LINE 0x1c /* copyback and invalidate */
#define CMMU_FLUSH_CACHE_CBI_PAGE 0x1d
#define CMMU_FLUSH_CACHE_CBI_SEGMENT 0x1e
#define CMMU_FLUSH_CACHE_CBI_ALL 0x1f
#define CMMU_PROBE_USER 0x20 /* probe user address */
#define CMMU_PROBE_SUPER 0x24 /* probe supervisor address */
#define CMMU_FLUSH_USER_LINE 0x30 /* flush PATC */
#define CMMU_FLUSH_USER_PAGE 0x31
#define CMMU_FLUSH_USER_SEGMENT 0x32
#define CMMU_FLUSH_USER_ALL 0x33
#define CMMU_FLUSH_SUPER_LINE 0x34
#define CMMU_FLUSH_SUPER_PAGE 0x35
#define CMMU_FLUSH_SUPER_SEGMENT 0x36
#define CMMU_FLUSH_SUPER_ALL 0x37
/* system control values */
#define CMMU_SCTR_PE 0x00008000 /* parity enable */
#define CMMU_SCTR_SE 0x00004000 /* snoop enable */
#define CMMU_SCTR_PR 0x00002000 /* priority arbitration */
/* P bus fault status */
#define CMMU_PFSR_FAULT(pfsr) (((pfsr) >> 16) & 0x07)
#define CMMU_PFSR_SUCCESS 0 /* no fault */
#define CMMU_PFSR_BERROR 3 /* bus error */
#define CMMU_PFSR_SFAULT 4 /* segment fault */
#define CMMU_PFSR_PFAULT 5 /* page fault */
#define CMMU_PFSR_SUPER 6 /* supervisor violation */
#define CMMU_PFSR_WRITE 7 /* writer violation */
/* CSSP values */
#define CMMU_CSSP_L5 0x20000000
#define CMMU_CSSP_L4 0x10000000
#define CMMU_CSSP_L3 0x08000000
#define CMMU_CSSP_L2 0x04000000
#define CMMU_CSSP_L1 0x02000000
#define CMMU_CSSP_L0 0x01000000
#define CMMU_CSSP_D3 0x00800000
#define CMMU_CSSP_D2 0x00400000
#define CMMU_CSSP_D1 0x00200000
#define CMMU_CSSP_D0 0x00100000
#define CMMU_CSSP_VV(n,v) (((v) & 0x03) << (12 + 2 * (n)))
#define CMMU_VV_EXCLUSIVE 0x00
#define CMMU_VV_MODIFIED 0x01
#define CMMU_VV_SHARED 0x02
#define CMMU_VV_INVALID 0x03
/* IDR values */
#define CMMU_ID(idr) ((idr) >> 24)
#define CMMU_TYPE(idr) (((idr) >> 21) & 0x07)
#define CMMU_VERSION(idr) (((idr) >> 16) & 0x1f)
#define M88200_ID 5
#define M88204_ID 6
/* SSR values */
#define CMMU_SSR_CE 0x00008000 /* copyback error */
#define CMMU_SSR_BE 0x00004000 /* bus error */
#define CMMU_SSR_SO 0x00000100
#define CMMU_SSR_M 0x00000010
#define CMMU_SSR_U 0x00000008
#define CMMU_SSR_PROT 0x00000004
#define CMMU_SSR_BH 0x00000002 /* probe BATC hit */
#define CMMU_SSR_V 0x00000001
/*
* Cache line information
*/
#define MC88200_CACHE_SHIFT 4
#define MC88200_CACHE_LINE (1 << MC88200_CACHE_SHIFT)
#define NBSG (1 << (PDT_BITS + PG_BITS)) /* segment size */
#ifndef _LOCORE
/*
* CMMU kernel information
*/
struct m8820x_cmmu {
volatile u_int32_t *cmmu_regs; /* CMMU "base" area */
#ifdef M88200_HAS_SPLIT_ADDRESS
vaddr_t cmmu_addr; /* address range */
vaddr_t cmmu_addr_mask; /* address mask */
#endif
};
#define INST_CMMU 0x00 /* even number */
#define DATA_CMMU 0x01 /* odd number */
#define CMMU_MODE(num) ((num) & 1)
#define MAX_CMMUS 8 /* maximum cmmus on the board */
extern struct m8820x_cmmu m8820x_cmmu[MAX_CMMUS];
extern u_int cmmu_shift;
extern u_int max_cmmus;
void m8820x_setup_board_config(void);
cpuid_t m8820x_cpu_number(void);
#endif /* _LOCORE */
#endif /* __M88K_M8820X_H__ */
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