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177 lines
6.9 KiB
C
177 lines
6.9 KiB
C
/* $Id: sun2-impl.h,v 1.10 2009/08/30 14:30:16 fredette Exp $ */
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/* machine/sun2/sun2-impl.h - implementation header file for Sun 2 emulation: */
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/*
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* Copyright (c) 2003 Matt Fredette
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Matt Fredette.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_SUN2_IMPL_H
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#define _MACHINE_SUN2_IMPL_H
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#include <tme/common.h>
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_TME_RCSID("$Id: sun2-impl.h,v 1.10 2009/08/30 14:30:16 fredette Exp $");
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/* includes: */
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#include <tme/generic/bus.h>
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#include <tme/generic/ic.h>
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#include <tme/machine/sun.h>
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#include <tme/ic/m68k.h>
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#include <tme/element.h>
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/* macros: */
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/* the sun2 control register file can be thought of as 16-bit
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big-endian memory, so we use a struct tme_ic to hold the register
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file, and use the TME_IC_BUS_IREGN macros to map it using real sun2
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control addresses: */
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#define _TME_SUN2_CONTROL_IREG8(addr) tme_sun2_ic.tme_ic_ireg_uint8(TME_IC_BUS_IREG8(1, TME_ENDIAN_BIG, addr))
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#define _TME_SUN2_CONTROL_IREG16(addr) tme_sun2_ic.tme_ic_ireg_uint16(TME_IC_BUS_IREG16(1, TME_ENDIAN_BIG, addr))
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#define tme_sun2_pgmap_hi _TME_SUN2_CONTROL_IREG16(0x00000000)
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#define tme_sun2_pgmap_lo _TME_SUN2_CONTROL_IREG16(0x00000002)
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#define tme_sun2_segmap _TME_SUN2_CONTROL_IREG8(0x00000005)
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#define tme_sun2_context_system _TME_SUN2_CONTROL_IREG8(0x00000006)
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#define tme_sun2_context_user _TME_SUN2_CONTROL_IREG8(0x00000007)
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#define tme_sun2_idprom _TME_SUN2_CONTROL_IREG8(0x00000008)
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#define tme_sun2_diag _TME_SUN2_CONTROL_IREG8(0x0000000B)
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#define tme_sun2_buserr _TME_SUN2_CONTROL_IREG16(0x0000000C)
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#define tme_sun2_enable _TME_SUN2_CONTROL_IREG16(0x0000000E)
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#define TME_SUN2_CONTROL_JUNK 0x00000010
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/* real enable register bits: */
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#define TME_SUN2_ENA_PAR_GEN (0x01) /* enable parity generation */
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#define TME_SUN2_ENA_SOFT_INT_1 (0x02) /* software interrupt on level 1 */
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#define TME_SUN2_ENA_SOFT_INT_2 (0x04) /* software interrupt on level 2 */
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#define TME_SUN2_ENA_SOFT_INT_3 (0x08) /* software interrupt on level 3 */
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#define TME_SUN2_ENA_PAR_CHECK (0x10) /* enable parity checking and errors */
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#define TME_SUN2_ENA_SDVMA (0x20) /* enable DVMA */
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#define TME_SUN2_ENA_INTS (0x40) /* enable interrupts */
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#define TME_SUN2_ENA_NOTBOOT (0x80) /* non-boot state */
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/* this recovers the control address of a register. it should
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optimize right down to a constant: */
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#define TME_SUN2_CONTROL_ADDRESS(reg) \
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TME_IC_IREG_BUS(1, TME_ENDIAN_BIG, reg, tme_sun2, tme_sun2_ic.)
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/* this starts a bus cycle structure: */
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#define TME_SUN2_CONTROL_BUS_CYCLE(sun2, addr, cycle) \
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TME_IC_IREG_BUS_CYCLE(1, TME_ENDIAN_BIG, &sun2->tme_sun2_ic, addr, cycle)
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/* the page size: */
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#define TME_SUN2_PAGE_SIZE_LOG2 (11)
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#define TME_SUN2_PAGE_SIZE (1 << TME_SUN2_PAGE_SIZE_LOG2)
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/* the PROM location: */
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#define TME_SUN2_PROM_BASE (0x00EF0000)
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#define TME_SUN2_PROM_SIZE (0x00010000)
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/* identifiers for the different buses: */
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#define TME_SUN2_BUS_OBIO (0)
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#define TME_SUN2_BUS_OBMEM (1)
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#define TME_SUN2_BUS_MBIO (2)
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#define TME_SUN2_BUS_MBMEM (3)
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#define TME_SUN2_BUS_VME (4)
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#define TME_SUN2_BUS_COUNT (5)
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/* the DVMA sizes: */
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#define TME_SUN2_DVMA_SIZE_MBMEM (0x00040000)
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#define TME_SUN2_DVMA_SIZE_VME (0x000F8000)
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#define TME_SUN2_LOG_HANDLE(sun2) (&(sun2)->tme_sun2_element->tme_element_log_handle)
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/* types: */
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/* a sun2 mainbus connection: */
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struct tme_sun2_bus_connection {
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/* the generic bus connection: */
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struct tme_bus_connection tme_sun2_bus_connection;
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/* which bus this is: */
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unsigned int tme_sun2_bus_connection_which;
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};
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/* a sun2: */
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struct tme_sun2 {
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/* our IC data structure, containing our various registers: */
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struct tme_ic tme_sun2_ic;
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/* backpointer to our element: */
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struct tme_element *tme_sun2_element;
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/* nonzero if this is a VME sun2: */
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int tme_sun2_has_vme;
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/* the IDPROM: */
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tme_uint8_t tme_sun2_idprom_contents[TME_SUN_IDPROM_SIZE];
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/* the MMU: */
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void *tme_sun2_mmu;
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/* the CPU: */
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struct tme_m68k_bus_connection *tme_sun2_m68k;
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/* the different buses: */
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struct tme_bus_connection *tme_sun2_buses[TME_SUN2_BUS_COUNT];
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#define tme_sun2_obio tme_sun2_buses[TME_SUN2_BUS_OBIO]
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#define tme_sun2_obmem tme_sun2_buses[TME_SUN2_BUS_OBMEM]
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#define tme_sun2_mbio tme_sun2_buses[TME_SUN2_BUS_MBIO]
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#define tme_sun2_mbmem tme_sun2_buses[TME_SUN2_BUS_MBMEM]
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#define tme_sun2_vmebus tme_sun2_buses[TME_SUN2_BUS_VME]
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/* the interrupt lines that are being asserted: */
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tme_uint8_t tme_sun2_int_signals[(TME_M68K_IPL_MAX + 1 + 7) >> 3];
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/* the last ipl we gave to the CPU: */
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unsigned int tme_sun2_int_ipl_last;
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/* the m68k bus context register: */
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tme_bus_context_t *tme_sun2_m68k_bus_context;
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};
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/* prototypes: */
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void _tme_sun2_mmu_new _TME_P((struct tme_sun2 *));
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int _tme_sun2_m68k_tlb_fill _TME_P((struct tme_m68k_bus_connection *, struct tme_m68k_tlb *,
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unsigned int, tme_uint32_t, unsigned int));
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int _tme_sun2_bus_tlb_fill _TME_P((struct tme_bus_connection *, struct tme_bus_tlb *,
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tme_bus_addr_t, unsigned int));
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int _tme_sun2_mmu_tlb_set_add _TME_P((struct tme_bus_connection *,
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struct tme_bus_tlb_set_info *));
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int _tme_sun2_mmu_pte_get _TME_P((struct tme_sun2 *, tme_uint32_t, tme_uint32_t *));
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int _tme_sun2_mmu_pte_set _TME_P((struct tme_sun2 *, tme_uint32_t, tme_uint32_t));
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void _tme_sun2_mmu_context_system_set _TME_P((struct tme_sun2 *));
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void _tme_sun2_mmu_context_user_set _TME_P((struct tme_sun2 *));
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int _tme_sun2_control_cycle_handler _TME_P((void *, struct tme_bus_cycle *));
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int _tme_sun2_ipl_check _TME_P((struct tme_sun2 *));
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#endif /* !_MACHINE_SUN2_IMPL_H */
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