1 /* $Id: sun2-impl.h,v 1.10 2009/08/30 14:30:16 fredette Exp $ */ 2 3 /* machine/sun2/sun2-impl.h - implementation header file for Sun 2 emulation: */ 4 5 /* 6 * Copyright (c) 2003 Matt Fredette 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Matt Fredette. 20 * 4. The name of the author may not be used to endorse or promote products 21 * derived from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 27 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 28 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 29 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 31 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 32 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 #ifndef _MACHINE_SUN2_IMPL_H 37 #define _MACHINE_SUN2_IMPL_H 38 39 #include <tme/common.h> 40 _TME_RCSID("$Id: sun2-impl.h,v 1.10 2009/08/30 14:30:16 fredette Exp $"); 41 42 /* includes: */ 43 #include <tme/generic/bus.h> 44 #include <tme/generic/ic.h> 45 #include <tme/machine/sun.h> 46 #include <tme/ic/m68k.h> 47 #include <tme/element.h> 48 49 /* macros: */ 50 51 /* the sun2 control register file can be thought of as 16-bit 52 big-endian memory, so we use a struct tme_ic to hold the register 53 file, and use the TME_IC_BUS_IREGN macros to map it using real sun2 54 control addresses: */ 55 #define _TME_SUN2_CONTROL_IREG8(addr) tme_sun2_ic.tme_ic_ireg_uint8(TME_IC_BUS_IREG8(1, TME_ENDIAN_BIG, addr)) 56 #define _TME_SUN2_CONTROL_IREG16(addr) tme_sun2_ic.tme_ic_ireg_uint16(TME_IC_BUS_IREG16(1, TME_ENDIAN_BIG, addr)) 57 #define tme_sun2_pgmap_hi _TME_SUN2_CONTROL_IREG16(0x00000000) 58 #define tme_sun2_pgmap_lo _TME_SUN2_CONTROL_IREG16(0x00000002) 59 #define tme_sun2_segmap _TME_SUN2_CONTROL_IREG8(0x00000005) 60 #define tme_sun2_context_system _TME_SUN2_CONTROL_IREG8(0x00000006) 61 #define tme_sun2_context_user _TME_SUN2_CONTROL_IREG8(0x00000007) 62 #define tme_sun2_idprom _TME_SUN2_CONTROL_IREG8(0x00000008) 63 #define tme_sun2_diag _TME_SUN2_CONTROL_IREG8(0x0000000B) 64 #define tme_sun2_buserr _TME_SUN2_CONTROL_IREG16(0x0000000C) 65 #define tme_sun2_enable _TME_SUN2_CONTROL_IREG16(0x0000000E) 66 #define TME_SUN2_CONTROL_JUNK 0x00000010 67 68 /* real enable register bits: */ 69 #define TME_SUN2_ENA_PAR_GEN (0x01) /* enable parity generation */ 70 #define TME_SUN2_ENA_SOFT_INT_1 (0x02) /* software interrupt on level 1 */ 71 #define TME_SUN2_ENA_SOFT_INT_2 (0x04) /* software interrupt on level 2 */ 72 #define TME_SUN2_ENA_SOFT_INT_3 (0x08) /* software interrupt on level 3 */ 73 #define TME_SUN2_ENA_PAR_CHECK (0x10) /* enable parity checking and errors */ 74 #define TME_SUN2_ENA_SDVMA (0x20) /* enable DVMA */ 75 #define TME_SUN2_ENA_INTS (0x40) /* enable interrupts */ 76 #define TME_SUN2_ENA_NOTBOOT (0x80) /* non-boot state */ 77 78 /* this recovers the control address of a register. it should 79 optimize right down to a constant: */ 80 #define TME_SUN2_CONTROL_ADDRESS(reg) \ 81 TME_IC_IREG_BUS(1, TME_ENDIAN_BIG, reg, tme_sun2, tme_sun2_ic.) 82 83 /* this starts a bus cycle structure: */ 84 #define TME_SUN2_CONTROL_BUS_CYCLE(sun2, addr, cycle) \ 85 TME_IC_IREG_BUS_CYCLE(1, TME_ENDIAN_BIG, &sun2->tme_sun2_ic, addr, cycle) 86 87 /* the page size: */ 88 #define TME_SUN2_PAGE_SIZE_LOG2 (11) 89 #define TME_SUN2_PAGE_SIZE (1 << TME_SUN2_PAGE_SIZE_LOG2) 90 91 /* the PROM location: */ 92 #define TME_SUN2_PROM_BASE (0x00EF0000) 93 #define TME_SUN2_PROM_SIZE (0x00010000) 94 95 /* identifiers for the different buses: */ 96 #define TME_SUN2_BUS_OBIO (0) 97 #define TME_SUN2_BUS_OBMEM (1) 98 #define TME_SUN2_BUS_MBIO (2) 99 #define TME_SUN2_BUS_MBMEM (3) 100 #define TME_SUN2_BUS_VME (4) 101 #define TME_SUN2_BUS_COUNT (5) 102 103 /* the DVMA sizes: */ 104 #define TME_SUN2_DVMA_SIZE_MBMEM (0x00040000) 105 #define TME_SUN2_DVMA_SIZE_VME (0x000F8000) 106 107 #define TME_SUN2_LOG_HANDLE(sun2) (&(sun2)->tme_sun2_element->tme_element_log_handle) 108 109 /* types: */ 110 111 /* a sun2 mainbus connection: */ 112 struct tme_sun2_bus_connection { 113 114 /* the generic bus connection: */ 115 struct tme_bus_connection tme_sun2_bus_connection; 116 117 /* which bus this is: */ 118 unsigned int tme_sun2_bus_connection_which; 119 }; 120 121 /* a sun2: */ 122 struct tme_sun2 { 123 124 /* our IC data structure, containing our various registers: */ 125 struct tme_ic tme_sun2_ic; 126 127 /* backpointer to our element: */ 128 struct tme_element *tme_sun2_element; 129 130 /* nonzero if this is a VME sun2: */ 131 int tme_sun2_has_vme; 132 133 /* the IDPROM: */ 134 tme_uint8_t tme_sun2_idprom_contents[TME_SUN_IDPROM_SIZE]; 135 136 /* the MMU: */ 137 void *tme_sun2_mmu; 138 139 /* the CPU: */ 140 struct tme_m68k_bus_connection *tme_sun2_m68k; 141 142 /* the different buses: */ 143 struct tme_bus_connection *tme_sun2_buses[TME_SUN2_BUS_COUNT]; 144 #define tme_sun2_obio tme_sun2_buses[TME_SUN2_BUS_OBIO] 145 #define tme_sun2_obmem tme_sun2_buses[TME_SUN2_BUS_OBMEM] 146 #define tme_sun2_mbio tme_sun2_buses[TME_SUN2_BUS_MBIO] 147 #define tme_sun2_mbmem tme_sun2_buses[TME_SUN2_BUS_MBMEM] 148 #define tme_sun2_vmebus tme_sun2_buses[TME_SUN2_BUS_VME] 149 150 /* the interrupt lines that are being asserted: */ 151 tme_uint8_t tme_sun2_int_signals[(TME_M68K_IPL_MAX + 1 + 7) >> 3]; 152 153 /* the last ipl we gave to the CPU: */ 154 unsigned int tme_sun2_int_ipl_last; 155 156 /* the m68k bus context register: */ 157 tme_bus_context_t *tme_sun2_m68k_bus_context; 158 }; 159 160 /* prototypes: */ 161 void _tme_sun2_mmu_new _TME_P((struct tme_sun2 *)); 162 int _tme_sun2_m68k_tlb_fill _TME_P((struct tme_m68k_bus_connection *, struct tme_m68k_tlb *, 163 unsigned int, tme_uint32_t, unsigned int)); 164 int _tme_sun2_bus_tlb_fill _TME_P((struct tme_bus_connection *, struct tme_bus_tlb *, 165 tme_bus_addr_t, unsigned int)); 166 int _tme_sun2_mmu_tlb_set_add _TME_P((struct tme_bus_connection *, 167 struct tme_bus_tlb_set_info *)); 168 int _tme_sun2_mmu_pte_get _TME_P((struct tme_sun2 *, tme_uint32_t, tme_uint32_t *)); 169 int _tme_sun2_mmu_pte_set _TME_P((struct tme_sun2 *, tme_uint32_t, tme_uint32_t)); 170 void _tme_sun2_mmu_context_system_set _TME_P((struct tme_sun2 *)); 171 void _tme_sun2_mmu_context_user_set _TME_P((struct tme_sun2 *)); 172 173 int _tme_sun2_control_cycle_handler _TME_P((void *, struct tme_bus_cycle *)); 174 int _tme_sun2_ipl_check _TME_P((struct tme_sun2 *)); 175 176 #endif /* !_MACHINE_SUN2_IMPL_H */ 177