Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* $Id: head.S,v 1.105 2001/08/12 09:08:56 davem Exp $ |
| 2 | * head.S: The initial boot code for the Sparc port of Linux. |
| 3 | * |
| 4 | * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) |
| 5 | * Copyright (C) 1995,1999 Pete Zaitcev (zaitcev@yahoo.com) |
| 6 | * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) |
| 7 | * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) |
| 8 | * Copyright (C) 1997 Michael A. Griffith (grif@acm.org) |
| 9 | * |
| 10 | * CompactPCI platform by Eric Brower, 1999. |
| 11 | */ |
| 12 | |
| 13 | #include <linux/version.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/init.h> |
| 15 | |
| 16 | #include <asm/head.h> |
| 17 | #include <asm/asi.h> |
| 18 | #include <asm/contregs.h> |
| 19 | #include <asm/ptrace.h> |
| 20 | #include <asm/psr.h> |
| 21 | #include <asm/page.h> |
Robert Reif | 19fce2b | 2007-05-14 03:22:08 -0700 | [diff] [blame] | 22 | #include <asm/kdebug.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 23 | #include <asm/winmacro.h> |
| 24 | #include <asm/thread_info.h> /* TI_UWINMASK */ |
| 25 | #include <asm/errno.h> |
| 26 | #include <asm/pgtsrmmu.h> /* SRMMU_PGDIR_SHIFT */ |
| 27 | |
| 28 | .data |
| 29 | /* |
| 30 | * The following are used with the prom_vector node-ops to figure out |
| 31 | * the cpu-type |
| 32 | */ |
| 33 | |
| 34 | .align 4 |
| 35 | .globl cputyp |
| 36 | cputyp: |
| 37 | .word 1 |
| 38 | |
| 39 | .align 4 |
| 40 | .globl cputypval |
| 41 | cputypval: |
| 42 | .asciz "sun4c" |
| 43 | .ascii " " |
| 44 | |
| 45 | cputypvalend: |
| 46 | cputypvallen = cputypvar - cputypval |
| 47 | |
| 48 | .align 4 |
| 49 | /* |
| 50 | * Sun people can't spell worth damn. "compatability" indeed. |
| 51 | * At least we *know* we can't spell, and use a spell-checker. |
| 52 | */ |
| 53 | |
| 54 | /* Uh, actually Linus it is I who cannot spell. Too much murky |
| 55 | * Sparc assembly will do this to ya. |
| 56 | */ |
| 57 | cputypvar: |
| 58 | .asciz "compatability" |
| 59 | |
| 60 | /* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */ |
| 61 | .align 4 |
| 62 | cputypvar_sun4m: |
| 63 | .asciz "compatible" |
| 64 | |
| 65 | .align 4 |
| 66 | |
| 67 | #ifndef CONFIG_SUN4 |
| 68 | sun4_notsup: |
| 69 | .asciz "Sparc-Linux sun4 needs a specially compiled kernel, turn CONFIG_SUN4 on.\n\n" |
| 70 | .align 4 |
| 71 | #else |
| 72 | sun4cdm_notsup: |
| 73 | .asciz "Kernel compiled with CONFIG_SUN4 cannot run on SUN4C/SUN4M/SUN4D\nTurn CONFIG_SUN4 off.\n\n" |
| 74 | .align 4 |
| 75 | #endif |
| 76 | |
| 77 | sun4e_notsup: |
| 78 | .asciz "Sparc-Linux sun4e support does not exist\n\n" |
| 79 | .align 4 |
| 80 | |
| 81 | #ifndef CONFIG_SUNOS_EMUL |
| 82 | #undef SUNOS_SYSCALL_TRAP |
| 83 | #define SUNOS_SYSCALL_TRAP SUNOS_NO_SYSCALL_TRAP |
| 84 | #endif |
| 85 | |
| 86 | /* The Sparc trap table, bootloader gives us control at _start. */ |
| 87 | .text |
| 88 | .globl start, _stext, _start, __stext |
| 89 | .globl trapbase |
| 90 | _start: /* danger danger */ |
| 91 | __stext: |
| 92 | _stext: |
| 93 | start: |
| 94 | trapbase: |
| 95 | #ifdef CONFIG_SMP |
| 96 | trapbase_cpu0: |
| 97 | #endif |
| 98 | /* We get control passed to us here at t_zero. */ |
| 99 | t_zero: b gokernel; nop; nop; nop; |
| 100 | t_tflt: SPARC_TFAULT /* Inst. Access Exception */ |
| 101 | t_bins: TRAP_ENTRY(0x2, bad_instruction) /* Illegal Instruction */ |
| 102 | t_pins: TRAP_ENTRY(0x3, priv_instruction) /* Privileged Instruction */ |
| 103 | t_fpd: TRAP_ENTRY(0x4, fpd_trap_handler) /* Floating Point Disabled */ |
| 104 | t_wovf: WINDOW_SPILL /* Window Overflow */ |
| 105 | t_wunf: WINDOW_FILL /* Window Underflow */ |
| 106 | t_mna: TRAP_ENTRY(0x7, mna_handler) /* Memory Address Not Aligned */ |
| 107 | t_fpe: TRAP_ENTRY(0x8, fpe_trap_handler) /* Floating Point Exception */ |
| 108 | t_dflt: SPARC_DFAULT /* Data Miss Exception */ |
| 109 | t_tio: TRAP_ENTRY(0xa, do_tag_overflow) /* Tagged Instruction Ovrflw */ |
| 110 | t_wpt: TRAP_ENTRY(0xb, do_watchpoint) /* Watchpoint Detected */ |
| 111 | t_badc: BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) |
| 112 | t_irq1: TRAP_ENTRY_INTERRUPT(1) /* IRQ Software/SBUS Level 1 */ |
| 113 | t_irq2: TRAP_ENTRY_INTERRUPT(2) /* IRQ SBUS Level 2 */ |
| 114 | t_irq3: TRAP_ENTRY_INTERRUPT(3) /* IRQ SCSI/DMA/SBUS Level 3 */ |
| 115 | t_irq4: TRAP_ENTRY_INTERRUPT(4) /* IRQ Software Level 4 */ |
| 116 | t_irq5: TRAP_ENTRY_INTERRUPT(5) /* IRQ SBUS/Ethernet Level 5 */ |
| 117 | t_irq6: TRAP_ENTRY_INTERRUPT(6) /* IRQ Software Level 6 */ |
| 118 | t_irq7: TRAP_ENTRY_INTERRUPT(7) /* IRQ Video/SBUS Level 5 */ |
| 119 | t_irq8: TRAP_ENTRY_INTERRUPT(8) /* IRQ SBUS Level 6 */ |
| 120 | t_irq9: TRAP_ENTRY_INTERRUPT(9) /* IRQ SBUS Level 7 */ |
| 121 | t_irq10:TRAP_ENTRY_INTERRUPT(10) /* IRQ Timer #1 (one we use) */ |
| 122 | t_irq11:TRAP_ENTRY_INTERRUPT(11) /* IRQ Floppy Intr. */ |
| 123 | t_irq12:TRAP_ENTRY_INTERRUPT(12) /* IRQ Zilog serial chip */ |
| 124 | t_irq13:TRAP_ENTRY_INTERRUPT(13) /* IRQ Audio Intr. */ |
| 125 | t_irq14:TRAP_ENTRY_INTERRUPT(14) /* IRQ Timer #2 */ |
| 126 | .globl t_nmi |
| 127 | #ifndef CONFIG_SMP |
| 128 | t_nmi: NMI_TRAP /* Level 15 (NMI) */ |
| 129 | #else |
| 130 | t_nmi: TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) |
| 131 | #endif |
| 132 | t_racc: TRAP_ENTRY(0x20, do_reg_access) /* General Register Access Error */ |
| 133 | t_iacce:BAD_TRAP(0x21) /* Instr Access Error */ |
| 134 | t_bad22:BAD_TRAP(0x22) BAD_TRAP(0x23) |
| 135 | t_cpdis:TRAP_ENTRY(0x24, do_cp_disabled) /* Co-Processor Disabled */ |
| 136 | t_uflsh:SKIP_TRAP(0x25, unimp_flush) /* Unimplemented FLUSH inst. */ |
| 137 | t_bad26:BAD_TRAP(0x26) BAD_TRAP(0x27) |
| 138 | t_cpexc:TRAP_ENTRY(0x28, do_cp_exception) /* Co-Processor Exception */ |
| 139 | t_dacce:SPARC_DFAULT /* Data Access Error */ |
| 140 | t_hwdz: TRAP_ENTRY(0x2a, do_hw_divzero) /* Division by zero, you lose... */ |
| 141 | t_dserr:BAD_TRAP(0x2b) /* Data Store Error */ |
| 142 | t_daccm:BAD_TRAP(0x2c) /* Data Access MMU-Miss */ |
| 143 | t_bad2d:BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) |
| 144 | t_bad32:BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) |
| 145 | t_bad37:BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) |
| 146 | t_iaccm:BAD_TRAP(0x3c) /* Instr Access MMU-Miss */ |
| 147 | t_bad3d:BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) BAD_TRAP(0x41) |
| 148 | t_bad42:BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) BAD_TRAP(0x46) |
| 149 | t_bad47:BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) BAD_TRAP(0x4b) |
| 150 | t_bad4c:BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) BAD_TRAP(0x50) |
| 151 | t_bad51:BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) |
| 152 | t_bad56:BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) |
| 153 | t_bad5b:BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) |
| 154 | t_bad60:BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) |
| 155 | t_bad65:BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) |
| 156 | t_bad6a:BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) |
| 157 | t_bad6f:BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) |
| 158 | t_bad74:BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) |
| 159 | t_bad79:BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) |
| 160 | t_bad7e:BAD_TRAP(0x7e) BAD_TRAP(0x7f) |
| 161 | t_sunos:SUNOS_SYSCALL_TRAP /* SunOS System Call */ |
| 162 | t_sbkpt:BREAKPOINT_TRAP /* Software Breakpoint/KGDB */ |
| 163 | t_divz: TRAP_ENTRY(0x82, do_hw_divzero) /* Divide by zero trap */ |
| 164 | t_flwin:TRAP_ENTRY(0x83, do_flush_windows) /* Flush Windows Trap */ |
| 165 | t_clwin:BAD_TRAP(0x84) /* Clean Windows Trap */ |
| 166 | t_rchk: BAD_TRAP(0x85) /* Range Check */ |
| 167 | t_funal:BAD_TRAP(0x86) /* Fix Unaligned Access Trap */ |
| 168 | t_iovf: BAD_TRAP(0x87) /* Integer Overflow Trap */ |
| 169 | t_slowl:SOLARIS_SYSCALL_TRAP /* Slowaris System Call */ |
| 170 | t_netbs:NETBSD_SYSCALL_TRAP /* Net-B.S. System Call */ |
| 171 | t_bad8a:BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) BAD_TRAP(0x8d) BAD_TRAP(0x8e) |
| 172 | t_bad8f:BAD_TRAP(0x8f) |
| 173 | t_linux:LINUX_SYSCALL_TRAP /* Linux System Call */ |
| 174 | t_bad91:BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) BAD_TRAP(0x95) |
| 175 | t_bad96:BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) BAD_TRAP(0x9a) |
| 176 | t_bad9b:BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) BAD_TRAP(0x9f) |
| 177 | t_getcc:GETCC_TRAP /* Get Condition Codes */ |
| 178 | t_setcc:SETCC_TRAP /* Set Condition Codes */ |
| 179 | t_getpsr:GETPSR_TRAP /* Get PSR Register */ |
| 180 | t_bada3:BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) |
| 181 | t_slowi:INDIRECT_SOLARIS_SYSCALL(156) |
| 182 | t_bada8:BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) |
| 183 | t_badac:BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) |
| 184 | t_badb1:BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) |
| 185 | t_badb6:BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) |
| 186 | t_badbb:BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) |
| 187 | t_badc0:BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) |
| 188 | t_badc5:BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) |
| 189 | t_badca:BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) |
| 190 | t_badcf:BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) |
| 191 | t_badd4:BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) |
| 192 | t_badd9:BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) |
| 193 | t_badde:BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) |
| 194 | t_bade3:BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) |
| 195 | t_bade8:BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) |
| 196 | t_baded:BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) |
| 197 | t_badf2:BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) |
| 198 | t_badf7:BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) |
| 199 | t_badfc:BAD_TRAP(0xfc) BAD_TRAP(0xfd) |
| 200 | dbtrap: BAD_TRAP(0xfe) /* Debugger/PROM breakpoint #1 */ |
| 201 | dbtrap2:BAD_TRAP(0xff) /* Debugger/PROM breakpoint #2 */ |
| 202 | |
| 203 | .globl end_traptable |
| 204 | end_traptable: |
| 205 | |
| 206 | #ifdef CONFIG_SMP |
| 207 | /* Trap tables for the other cpus. */ |
| 208 | .globl trapbase_cpu1, trapbase_cpu2, trapbase_cpu3 |
| 209 | trapbase_cpu1: |
| 210 | BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction) |
| 211 | TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler) |
| 212 | WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler) |
| 213 | TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT |
| 214 | TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint) |
| 215 | BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) |
| 216 | TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) |
| 217 | TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) |
| 218 | TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) |
| 219 | TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) |
| 220 | TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) |
| 221 | TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) |
| 222 | TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) |
| 223 | TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) |
| 224 | TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22) |
| 225 | BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush) |
| 226 | BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception) |
| 227 | SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c) |
| 228 | BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) |
| 229 | BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) |
| 230 | BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) |
| 231 | BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) |
| 232 | BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) |
| 233 | BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) |
| 234 | BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) |
| 235 | BAD_TRAP(0x50) |
| 236 | BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) |
| 237 | BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) |
| 238 | BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) |
| 239 | BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) |
| 240 | BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) |
| 241 | BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) |
| 242 | BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) |
| 243 | BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) |
| 244 | BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) |
| 245 | BAD_TRAP(0x7e) BAD_TRAP(0x7f) |
| 246 | SUNOS_SYSCALL_TRAP |
| 247 | BREAKPOINT_TRAP |
| 248 | TRAP_ENTRY(0x82, do_hw_divzero) |
| 249 | TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85) |
| 250 | BAD_TRAP(0x86) BAD_TRAP(0x87) SOLARIS_SYSCALL_TRAP |
| 251 | NETBSD_SYSCALL_TRAP BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) |
| 252 | BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) |
| 253 | LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) |
| 254 | BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) |
| 255 | BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) |
| 256 | BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP |
| 257 | BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) |
| 258 | INDIRECT_SOLARIS_SYSCALL(156) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) |
| 259 | BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) |
| 260 | BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) |
| 261 | BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) |
| 262 | BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) |
| 263 | BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) |
| 264 | BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) |
| 265 | BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) |
| 266 | BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) |
| 267 | BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) |
| 268 | BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) |
| 269 | BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) |
| 270 | BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) |
| 271 | BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) |
| 272 | BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) |
| 273 | BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) |
| 274 | BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) |
| 275 | BAD_TRAP(0xfc) BAD_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff) |
| 276 | |
| 277 | trapbase_cpu2: |
| 278 | BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction) |
| 279 | TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler) |
| 280 | WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler) |
| 281 | TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT |
| 282 | TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint) |
| 283 | BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) |
| 284 | TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) |
| 285 | TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) |
| 286 | TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) |
| 287 | TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) |
| 288 | TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) |
| 289 | TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) |
| 290 | TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) |
| 291 | TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) |
| 292 | TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22) |
| 293 | BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush) |
| 294 | BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception) |
| 295 | SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c) |
| 296 | BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) |
| 297 | BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) |
| 298 | BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) |
| 299 | BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) |
| 300 | BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) |
| 301 | BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) |
| 302 | BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) |
| 303 | BAD_TRAP(0x50) |
| 304 | BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) |
| 305 | BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) |
| 306 | BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) |
| 307 | BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) |
| 308 | BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) |
| 309 | BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) |
| 310 | BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) |
| 311 | BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) |
| 312 | BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) |
| 313 | BAD_TRAP(0x7e) BAD_TRAP(0x7f) |
| 314 | SUNOS_SYSCALL_TRAP |
| 315 | BREAKPOINT_TRAP |
| 316 | TRAP_ENTRY(0x82, do_hw_divzero) |
| 317 | TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85) |
| 318 | BAD_TRAP(0x86) BAD_TRAP(0x87) SOLARIS_SYSCALL_TRAP |
| 319 | NETBSD_SYSCALL_TRAP BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) |
| 320 | BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) |
| 321 | LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) |
| 322 | BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) |
| 323 | BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) |
| 324 | BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP |
| 325 | BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) |
| 326 | INDIRECT_SOLARIS_SYSCALL(156) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) |
| 327 | BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) |
| 328 | BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) |
| 329 | BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) |
| 330 | BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) |
| 331 | BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) |
| 332 | BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) |
| 333 | BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) |
| 334 | BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) |
| 335 | BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) |
| 336 | BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) |
| 337 | BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) |
| 338 | BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) |
| 339 | BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) |
| 340 | BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) |
| 341 | BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) |
| 342 | BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) |
| 343 | BAD_TRAP(0xfc) BAD_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff) |
| 344 | |
| 345 | trapbase_cpu3: |
| 346 | BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction) |
| 347 | TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler) |
| 348 | WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler) |
| 349 | TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT |
| 350 | TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint) |
| 351 | BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) |
| 352 | TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) |
| 353 | TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) |
| 354 | TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) |
| 355 | TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) |
| 356 | TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) |
| 357 | TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) |
| 358 | TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) |
| 359 | TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) |
| 360 | TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22) |
| 361 | BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush) |
| 362 | BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception) |
| 363 | SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c) |
| 364 | BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) |
| 365 | BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) |
| 366 | BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) |
| 367 | BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) |
| 368 | BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) |
| 369 | BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) |
| 370 | BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) |
| 371 | BAD_TRAP(0x50) |
| 372 | BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) |
| 373 | BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) |
| 374 | BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) |
| 375 | BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) |
| 376 | BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) |
| 377 | BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) |
| 378 | BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) |
| 379 | BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) |
| 380 | BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) |
| 381 | BAD_TRAP(0x7e) BAD_TRAP(0x7f) |
| 382 | SUNOS_SYSCALL_TRAP |
| 383 | BREAKPOINT_TRAP |
| 384 | TRAP_ENTRY(0x82, do_hw_divzero) |
| 385 | TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85) |
| 386 | BAD_TRAP(0x86) BAD_TRAP(0x87) SOLARIS_SYSCALL_TRAP |
| 387 | NETBSD_SYSCALL_TRAP BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) |
| 388 | BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) |
| 389 | LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) |
| 390 | BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) |
| 391 | BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) |
| 392 | BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP |
| 393 | BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) |
| 394 | INDIRECT_SOLARIS_SYSCALL(156) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) |
| 395 | BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) |
| 396 | BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) |
| 397 | BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) |
| 398 | BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) |
| 399 | BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) |
| 400 | BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) |
| 401 | BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) |
| 402 | BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) |
| 403 | BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) |
| 404 | BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) |
| 405 | BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) |
| 406 | BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) |
| 407 | BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) |
| 408 | BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) |
| 409 | BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) |
| 410 | BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) |
| 411 | BAD_TRAP(0xfc) BAD_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff) |
| 412 | |
| 413 | #endif |
| 414 | .align PAGE_SIZE |
| 415 | |
| 416 | /* This was the only reasonable way I could think of to properly align |
| 417 | * these page-table data structures. |
| 418 | */ |
| 419 | .globl pg0, pg1, pg2, pg3 |
| 420 | .globl empty_bad_page |
| 421 | .globl empty_bad_page_table |
| 422 | .globl empty_zero_page |
| 423 | .globl swapper_pg_dir |
| 424 | swapper_pg_dir: .skip PAGE_SIZE |
| 425 | pg0: .skip PAGE_SIZE |
| 426 | pg1: .skip PAGE_SIZE |
| 427 | pg2: .skip PAGE_SIZE |
| 428 | pg3: .skip PAGE_SIZE |
| 429 | empty_bad_page: .skip PAGE_SIZE |
| 430 | empty_bad_page_table: .skip PAGE_SIZE |
| 431 | empty_zero_page: .skip PAGE_SIZE |
| 432 | |
| 433 | .global root_flags |
| 434 | .global ram_flags |
| 435 | .global root_dev |
| 436 | .global sparc_ramdisk_image |
| 437 | .global sparc_ramdisk_size |
| 438 | |
| 439 | /* This stuff has to be in sync with SILO and other potential boot loaders |
| 440 | * Fields should be kept upward compatible and whenever any change is made, |
| 441 | * HdrS version should be incremented. |
| 442 | */ |
| 443 | .ascii "HdrS" |
| 444 | .word LINUX_VERSION_CODE |
| 445 | .half 0x0203 /* HdrS version */ |
| 446 | root_flags: |
| 447 | .half 1 |
| 448 | root_dev: |
| 449 | .half 0 |
| 450 | ram_flags: |
| 451 | .half 0 |
| 452 | sparc_ramdisk_image: |
| 453 | .word 0 |
| 454 | sparc_ramdisk_size: |
| 455 | .word 0 |
| 456 | .word reboot_command |
| 457 | .word 0, 0, 0 |
| 458 | .word _end |
| 459 | |
| 460 | /* Cool, here we go. Pick up the romvec pointer in %o0 and stash it in |
| 461 | * %g7 and at prom_vector_p. And also quickly check whether we are on |
| 462 | * a v0, v2, or v3 prom. |
| 463 | */ |
| 464 | gokernel: |
| 465 | /* Ok, it's nice to know, as early as possible, if we |
| 466 | * are already mapped where we expect to be in virtual |
| 467 | * memory. The Solaris /boot elf format bootloader |
| 468 | * will peek into our elf header and load us where |
| 469 | * we want to be, otherwise we have to re-map. |
| 470 | * |
| 471 | * Some boot loaders don't place the jmp'rs address |
| 472 | * in %o7, so we do a pc-relative call to a local |
| 473 | * label, then see what %o7 has. |
| 474 | */ |
| 475 | |
| 476 | mov %o7, %g4 ! Save %o7 |
| 477 | |
| 478 | /* Jump to it, and pray... */ |
| 479 | current_pc: |
| 480 | call 1f |
| 481 | nop |
| 482 | |
| 483 | 1: |
| 484 | mov %o7, %g3 |
| 485 | |
| 486 | tst %o0 |
| 487 | be no_sun4u_here |
| 488 | mov %g4, %o7 /* Previous %o7. */ |
| 489 | |
| 490 | mov %o0, %l0 ! stash away romvec |
| 491 | mov %o0, %g7 ! put it here too |
| 492 | mov %o1, %l1 ! stash away debug_vec too |
| 493 | |
| 494 | /* Ok, let's check out our run time program counter. */ |
| 495 | set current_pc, %g5 |
| 496 | cmp %g3, %g5 |
| 497 | be already_mapped |
| 498 | nop |
| 499 | |
| 500 | /* %l6 will hold the offset we have to subtract |
| 501 | * from absolute symbols in order to access areas |
| 502 | * in our own image. If already mapped this is |
| 503 | * just plain zero, else it is KERNBASE. |
| 504 | */ |
| 505 | set KERNBASE, %l6 |
| 506 | b copy_prom_lvl14 |
| 507 | nop |
| 508 | |
| 509 | already_mapped: |
| 510 | mov 0, %l6 |
| 511 | |
| 512 | /* Copy over the Prom's level 14 clock handler. */ |
| 513 | copy_prom_lvl14: |
| 514 | #if 1 |
| 515 | /* DJHR |
| 516 | * preserve our linked/calculated instructions |
| 517 | */ |
| 518 | set lvl14_save, %g1 |
| 519 | set t_irq14, %g3 |
| 520 | sub %g1, %l6, %g1 ! translate to physical |
| 521 | sub %g3, %l6, %g3 ! translate to physical |
| 522 | ldd [%g3], %g4 |
| 523 | std %g4, [%g1] |
| 524 | ldd [%g3+8], %g4 |
| 525 | std %g4, [%g1+8] |
| 526 | #endif |
| 527 | rd %tbr, %g1 |
| 528 | andn %g1, 0xfff, %g1 ! proms trap table base |
| 529 | or %g0, (0x1e<<4), %g2 ! offset to lvl14 intr |
| 530 | or %g1, %g2, %g2 |
| 531 | set t_irq14, %g3 |
| 532 | sub %g3, %l6, %g3 |
| 533 | ldd [%g2], %g4 |
| 534 | std %g4, [%g3] |
| 535 | ldd [%g2 + 0x8], %g4 |
| 536 | std %g4, [%g3 + 0x8] ! Copy proms handler |
| 537 | |
| 538 | /* Must determine whether we are on a sun4c MMU, SRMMU, or SUN4/400 MUTANT |
| 539 | * MMU so we can remap ourselves properly. DON'T TOUCH %l0 thru %l5 in these |
| 540 | * remapping routines, we need their values afterwards! |
| 541 | */ |
| 542 | /* Now check whether we are already mapped, if we |
| 543 | * are we can skip all this garbage coming up. |
| 544 | */ |
| 545 | copy_prom_done: |
| 546 | cmp %l6, 0 |
| 547 | be go_to_highmem ! this will be a nop then |
| 548 | nop |
| 549 | |
| 550 | set LOAD_ADDR, %g6 |
| 551 | cmp %g7, %g6 |
| 552 | bne remap_not_a_sun4 ! This is not a Sun4 |
| 553 | nop |
| 554 | |
| 555 | or %g0, 0x1, %g1 |
| 556 | lduba [%g1] ASI_CONTROL, %g1 ! Only safe to try on Sun4. |
| 557 | subcc %g1, 0x24, %g0 ! Is this a mutant Sun4/400??? |
| 558 | be sun4_mutant_remap ! Ugh, it is... |
| 559 | nop |
| 560 | |
| 561 | b sun4_normal_remap ! regular sun4, 2 level mmu |
| 562 | nop |
| 563 | |
| 564 | remap_not_a_sun4: |
| 565 | lda [%g0] ASI_M_MMUREGS, %g1 ! same as ASI_PTE on sun4c |
| 566 | and %g1, 0x1, %g1 ! Test SRMMU Enable bit ;-) |
| 567 | cmp %g1, 0x0 |
| 568 | be sun4c_remap ! A sun4c MMU or normal Sun4 |
| 569 | nop |
| 570 | srmmu_remap: |
| 571 | /* First, check for a viking (TI) module. */ |
| 572 | set 0x40000000, %g2 |
| 573 | rd %psr, %g3 |
| 574 | and %g2, %g3, %g3 |
| 575 | subcc %g3, 0x0, %g0 |
| 576 | bz srmmu_nviking |
| 577 | nop |
| 578 | |
| 579 | /* Figure out what kind of viking we are on. |
| 580 | * We need to know if we have to play with the |
| 581 | * AC bit and disable traps or not. |
| 582 | */ |
| 583 | |
| 584 | /* I've only seen MicroSparc's on SparcClassics with this |
| 585 | * bit set. |
| 586 | */ |
| 587 | set 0x800, %g2 |
| 588 | lda [%g0] ASI_M_MMUREGS, %g3 ! peek in the control reg |
| 589 | and %g2, %g3, %g3 |
| 590 | subcc %g3, 0x0, %g0 |
| 591 | bnz srmmu_nviking ! is in mbus mode |
| 592 | nop |
| 593 | |
| 594 | rd %psr, %g3 ! DO NOT TOUCH %g3 |
| 595 | andn %g3, PSR_ET, %g2 |
| 596 | wr %g2, 0x0, %psr |
| 597 | WRITE_PAUSE |
| 598 | |
| 599 | /* Get context table pointer, then convert to |
| 600 | * a physical address, which is 36 bits. |
| 601 | */ |
| 602 | set AC_M_CTPR, %g4 |
| 603 | lda [%g4] ASI_M_MMUREGS, %g4 |
| 604 | sll %g4, 0x4, %g4 ! We use this below |
| 605 | ! DO NOT TOUCH %g4 |
| 606 | |
| 607 | /* Set the AC bit in the Viking's MMU control reg. */ |
| 608 | lda [%g0] ASI_M_MMUREGS, %g5 ! DO NOT TOUCH %g5 |
| 609 | set 0x8000, %g6 ! AC bit mask |
| 610 | or %g5, %g6, %g6 ! Or it in... |
| 611 | sta %g6, [%g0] ASI_M_MMUREGS ! Close your eyes... |
| 612 | |
| 613 | /* Grrr, why does it seem like every other load/store |
| 614 | * on the sun4m is in some ASI space... |
| 615 | * Fine with me, let's get the pointer to the level 1 |
| 616 | * page table directory and fetch its entry. |
| 617 | */ |
| 618 | lda [%g4] ASI_M_BYPASS, %o1 ! This is a level 1 ptr |
| 619 | srl %o1, 0x4, %o1 ! Clear low 4 bits |
| 620 | sll %o1, 0x8, %o1 ! Make physical |
| 621 | |
| 622 | /* Ok, pull in the PTD. */ |
| 623 | lda [%o1] ASI_M_BYPASS, %o2 ! This is the 0x0 16MB pgd |
| 624 | |
| 625 | /* Calculate to KERNBASE entry. */ |
| 626 | add %o1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %o3 |
| 627 | |
| 628 | /* Poke the entry into the calculated address. */ |
| 629 | sta %o2, [%o3] ASI_M_BYPASS |
| 630 | |
| 631 | /* I don't get it Sun, if you engineered all these |
| 632 | * boot loaders and the PROM (thank you for the debugging |
| 633 | * features btw) why did you not have them load kernel |
| 634 | * images up in high address space, since this is necessary |
| 635 | * for ABI compliance anyways? Does this low-mapping provide |
| 636 | * enhanced interoperability? |
| 637 | * |
| 638 | * "The PROM is the computer." |
| 639 | */ |
| 640 | |
| 641 | /* Ok, restore the MMU control register we saved in %g5 */ |
| 642 | sta %g5, [%g0] ASI_M_MMUREGS ! POW... ouch |
| 643 | |
| 644 | /* Turn traps back on. We saved it in %g3 earlier. */ |
| 645 | wr %g3, 0x0, %psr ! tick tock, tick tock |
| 646 | |
| 647 | /* Now we burn precious CPU cycles due to bad engineering. */ |
| 648 | WRITE_PAUSE |
| 649 | |
| 650 | /* Wow, all that just to move a 32-bit value from one |
| 651 | * place to another... Jump to high memory. |
| 652 | */ |
| 653 | b go_to_highmem |
| 654 | nop |
| 655 | |
| 656 | /* This works on viking's in Mbus mode and all |
| 657 | * other MBUS modules. It is virtually the same as |
| 658 | * the above madness sans turning traps off and flipping |
| 659 | * the AC bit. |
| 660 | */ |
| 661 | srmmu_nviking: |
| 662 | set AC_M_CTPR, %g1 |
| 663 | lda [%g1] ASI_M_MMUREGS, %g1 ! get ctx table ptr |
| 664 | sll %g1, 0x4, %g1 ! make physical addr |
| 665 | lda [%g1] ASI_M_BYPASS, %g1 ! ptr to level 1 pg_table |
| 666 | srl %g1, 0x4, %g1 |
| 667 | sll %g1, 0x8, %g1 ! make phys addr for l1 tbl |
| 668 | |
| 669 | lda [%g1] ASI_M_BYPASS, %g2 ! get level1 entry for 0x0 |
| 670 | add %g1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %g3 |
| 671 | sta %g2, [%g3] ASI_M_BYPASS ! place at KERNBASE entry |
| 672 | b go_to_highmem |
| 673 | nop ! wheee.... |
| 674 | |
| 675 | /* This remaps the kernel on Sun4/4xx machines |
| 676 | * that have the Sun Mutant Three Level MMU. |
| 677 | * It's like a platypus, Sun didn't have the |
| 678 | * SRMMU in conception so they kludged the three |
| 679 | * level logic in the regular Sun4 MMU probably. |
| 680 | * |
| 681 | * Basically, you take each entry in the top level |
| 682 | * directory that maps the low 3MB starting at |
| 683 | * address zero and put the mapping in the KERNBASE |
| 684 | * slots. These top level pgd's are called regmaps. |
| 685 | */ |
| 686 | sun4_mutant_remap: |
| 687 | or %g0, %g0, %g3 ! source base |
| 688 | sethi %hi(KERNBASE), %g4 ! destination base |
| 689 | or %g4, %lo(KERNBASE), %g4 |
| 690 | sethi %hi(0x300000), %g5 |
| 691 | or %g5, %lo(0x300000), %g5 ! upper bound 3MB |
| 692 | or %g0, 0x1, %l6 |
| 693 | sll %l6, 24, %l6 ! Regmap mapping size |
| 694 | add %g3, 0x2, %g3 ! Base magic |
| 695 | add %g4, 0x2, %g4 ! Base magic |
| 696 | |
| 697 | /* Main remapping loop on Sun4-Mutant-MMU. |
| 698 | * "I am not an animal..." -Famous Mutant Person |
| 699 | */ |
| 700 | sun4_mutant_loop: |
| 701 | lduha [%g3] ASI_REGMAP, %g2 ! Get lower entry |
| 702 | stha %g2, [%g4] ASI_REGMAP ! Store in high entry |
| 703 | add %g4, %l6, %g4 ! Move up high memory ptr |
| 704 | subcc %g3, %g5, %g0 ! Reached our limit? |
| 705 | blu sun4_mutant_loop ! Nope, loop again |
| 706 | add %g3, %l6, %g3 ! delay, Move up low ptr |
| 707 | b go_to_highmem ! Jump to high memory. |
| 708 | nop |
| 709 | |
| 710 | /* The following is for non-4/4xx sun4 MMU's. */ |
| 711 | sun4_normal_remap: |
| 712 | mov 0, %g3 ! source base |
| 713 | set KERNBASE, %g4 ! destination base |
| 714 | set 0x300000, %g5 ! upper bound 3MB |
| 715 | mov 1, %l6 |
| 716 | sll %l6, 18, %l6 ! sun4 mmu segmap size |
| 717 | sun4_normal_loop: |
| 718 | lduha [%g3] ASI_SEGMAP, %g6 ! load phys_seg |
| 719 | stha %g6, [%g4] ASI_SEGMAP ! stort new virt mapping |
| 720 | add %g3, %l6, %g3 ! increment source pointer |
| 721 | subcc %g3, %g5, %g0 ! reached limit? |
| 722 | blu sun4_normal_loop ! nope, loop again |
| 723 | add %g4, %l6, %g4 ! delay, increment dest ptr |
| 724 | b go_to_highmem |
| 725 | nop |
| 726 | |
| 727 | /* The following works for Sun4c MMU's */ |
| 728 | sun4c_remap: |
| 729 | mov 0, %g3 ! source base |
| 730 | set KERNBASE, %g4 ! destination base |
| 731 | set 0x300000, %g5 ! upper bound 3MB |
| 732 | mov 1, %l6 |
| 733 | sll %l6, 18, %l6 ! sun4c mmu segmap size |
| 734 | sun4c_remap_loop: |
| 735 | lda [%g3] ASI_SEGMAP, %g6 ! load phys_seg |
| 736 | sta %g6, [%g4] ASI_SEGMAP ! store new virt mapping |
| 737 | add %g3, %l6, %g3 ! Increment source ptr |
| 738 | subcc %g3, %g5, %g0 ! Reached limit? |
| 739 | bl sun4c_remap_loop ! Nope, loop again |
| 740 | add %g4, %l6, %g4 ! delay, Increment dest ptr |
| 741 | |
| 742 | /* Now do a non-relative jump so that PC is in high-memory */ |
| 743 | go_to_highmem: |
| 744 | set execute_in_high_mem, %g1 |
| 745 | jmpl %g1, %g0 |
| 746 | nop |
| 747 | |
| 748 | /* The code above should be at beginning and we have to take care about |
| 749 | * short jumps, as branching to .text.init section from .text is usually |
| 750 | * impossible */ |
| 751 | __INIT |
| 752 | /* Acquire boot time privileged register values, this will help debugging. |
| 753 | * I figure out and store nwindows and nwindowsm1 later on. |
| 754 | */ |
| 755 | execute_in_high_mem: |
| 756 | mov %l0, %o0 ! put back romvec |
| 757 | mov %l1, %o1 ! and debug_vec |
| 758 | |
| 759 | sethi %hi(prom_vector_p), %g1 |
| 760 | st %o0, [%g1 + %lo(prom_vector_p)] |
| 761 | |
| 762 | sethi %hi(linux_dbvec), %g1 |
| 763 | st %o1, [%g1 + %lo(linux_dbvec)] |
| 764 | |
| 765 | ld [%o0 + 0x4], %o3 |
| 766 | and %o3, 0x3, %o5 ! get the version |
| 767 | |
| 768 | cmp %o3, 0x2 ! a v2 prom? |
| 769 | be found_version |
| 770 | nop |
| 771 | |
| 772 | /* paul@sfe.com.au */ |
| 773 | cmp %o3, 0x3 ! a v3 prom? |
| 774 | be found_version |
| 775 | nop |
| 776 | |
| 777 | /* Old sun4's pass our load address into %o0 instead of the prom |
| 778 | * pointer. On sun4's you have to hard code the romvec pointer into |
| 779 | * your code. Sun probably still does that because they don't even |
| 780 | * trust their own "OpenBoot" specifications. |
| 781 | */ |
| 782 | set LOAD_ADDR, %g6 |
| 783 | cmp %o0, %g6 ! an old sun4? |
| 784 | be sun4_init |
| 785 | nop |
| 786 | |
| 787 | found_version: |
| 788 | #ifdef CONFIG_SUN4 |
| 789 | /* For people who try sun4 kernels, even if Configure.help advises them. */ |
| 790 | ld [%g7 + 0x68], %o1 |
| 791 | set sun4cdm_notsup, %o0 |
| 792 | call %o1 |
| 793 | nop |
| 794 | b halt_me |
| 795 | nop |
| 796 | #endif |
| 797 | /* Get the machine type via the mysterious romvec node operations. */ |
| 798 | |
| 799 | add %g7, 0x1c, %l1 |
| 800 | ld [%l1], %l0 |
| 801 | ld [%l0], %l0 |
| 802 | call %l0 |
| 803 | or %g0, %g0, %o0 ! next_node(0) = first_node |
| 804 | or %o0, %g0, %g6 |
| 805 | |
| 806 | sethi %hi(cputypvar), %o1 ! First node has cpu-arch |
| 807 | or %o1, %lo(cputypvar), %o1 |
| 808 | sethi %hi(cputypval), %o2 ! information, the string |
| 809 | or %o2, %lo(cputypval), %o2 |
| 810 | ld [%l1], %l0 ! 'compatibility' tells |
| 811 | ld [%l0 + 0xc], %l0 ! that we want 'sun4x' where |
| 812 | call %l0 ! x is one of '', 'c', 'm', |
| 813 | nop ! 'd' or 'e'. %o2 holds pointer |
| 814 | ! to a buf where above string |
| 815 | ! will get stored by the prom. |
| 816 | |
| 817 | subcc %o0, %g0, %g0 |
| 818 | bpos got_prop ! Got the property |
| 819 | nop |
| 820 | |
| 821 | or %g6, %g0, %o0 |
| 822 | sethi %hi(cputypvar_sun4m), %o1 |
| 823 | or %o1, %lo(cputypvar_sun4m), %o1 |
| 824 | sethi %hi(cputypval), %o2 |
| 825 | or %o2, %lo(cputypval), %o2 |
| 826 | ld [%l1], %l0 |
| 827 | ld [%l0 + 0xc], %l0 |
| 828 | call %l0 |
| 829 | nop |
| 830 | |
| 831 | got_prop: |
| 832 | set cputypval, %o2 |
| 833 | ldub [%o2 + 0x4], %l1 |
| 834 | |
| 835 | cmp %l1, ' ' |
| 836 | be 1f |
| 837 | cmp %l1, 'c' |
| 838 | be 1f |
| 839 | cmp %l1, 'm' |
| 840 | be 1f |
| 841 | cmp %l1, 's' |
| 842 | be 1f |
| 843 | cmp %l1, 'd' |
| 844 | be 1f |
| 845 | cmp %l1, 'e' |
| 846 | be no_sun4e_here ! Could be a sun4e. |
| 847 | nop |
| 848 | b no_sun4u_here ! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :)) |
| 849 | nop |
| 850 | |
| 851 | 1: set cputypval, %l1 |
| 852 | ldub [%l1 + 0x4], %l1 |
| 853 | cmp %l1, 'm' ! Test for sun4d, sun4e ? |
| 854 | be sun4m_init |
| 855 | cmp %l1, 's' ! Treat sun4s as sun4m |
| 856 | be sun4m_init |
| 857 | cmp %l1, 'd' ! Let us see how the beast will die |
| 858 | be sun4d_init |
| 859 | nop |
| 860 | |
| 861 | /* Jump into mmu context zero. */ |
| 862 | set AC_CONTEXT, %g1 |
| 863 | stba %g0, [%g1] ASI_CONTROL |
| 864 | |
| 865 | b sun4c_continue_boot |
| 866 | nop |
| 867 | |
| 868 | /* CPUID in bootbus can be found at PA 0xff0140000 */ |
| 869 | #define SUN4D_BOOTBUS_CPUID 0xf0140000 |
| 870 | |
| 871 | sun4d_init: |
| 872 | /* Need to patch call to handler_irq */ |
| 873 | set patch_handler_irq, %g4 |
| 874 | set sun4d_handler_irq, %g5 |
| 875 | sethi %hi(0x40000000), %g3 ! call |
| 876 | sub %g5, %g4, %g5 |
| 877 | srl %g5, 2, %g5 |
| 878 | or %g5, %g3, %g5 |
| 879 | st %g5, [%g4] |
| 880 | |
| 881 | #ifdef CONFIG_SMP |
| 882 | /* Get our CPU id out of bootbus */ |
| 883 | set SUN4D_BOOTBUS_CPUID, %g3 |
| 884 | lduba [%g3] ASI_M_CTL, %g3 |
| 885 | and %g3, 0xf8, %g3 |
| 886 | srl %g3, 3, %g4 |
| 887 | sta %g4, [%g0] ASI_M_VIKING_TMP1 |
| 888 | sethi %hi(boot_cpu_id), %g5 |
| 889 | stb %g4, [%g5 + %lo(boot_cpu_id)] |
| 890 | sll %g4, 2, %g4 |
| 891 | sethi %hi(boot_cpu_id4), %g5 |
| 892 | stb %g4, [%g5 + %lo(boot_cpu_id4)] |
| 893 | #endif |
| 894 | |
| 895 | /* Fall through to sun4m_init */ |
| 896 | |
| 897 | sun4m_init: |
| 898 | /* XXX Fucking Cypress... */ |
| 899 | lda [%g0] ASI_M_MMUREGS, %g5 |
| 900 | srl %g5, 28, %g4 |
| 901 | |
| 902 | cmp %g4, 1 |
| 903 | bne 1f |
| 904 | srl %g5, 24, %g4 |
| 905 | |
| 906 | and %g4, 0xf, %g4 |
| 907 | cmp %g4, 7 /* This would be a HyperSparc. */ |
| 908 | |
| 909 | bne 2f |
| 910 | nop |
| 911 | |
| 912 | 1: |
| 913 | |
| 914 | #define PATCH_IT(dst, src) \ |
| 915 | set (dst), %g5; \ |
| 916 | set (src), %g4; \ |
| 917 | ld [%g4], %g3; \ |
| 918 | st %g3, [%g5]; \ |
| 919 | ld [%g4+0x4], %g3; \ |
| 920 | st %g3, [%g5+0x4]; |
| 921 | |
| 922 | /* Signed multiply. */ |
| 923 | PATCH_IT(.mul, .mul_patch) |
| 924 | PATCH_IT(.mul+0x08, .mul_patch+0x08) |
| 925 | |
| 926 | /* Signed remainder. */ |
| 927 | PATCH_IT(.rem, .rem_patch) |
| 928 | PATCH_IT(.rem+0x08, .rem_patch+0x08) |
| 929 | PATCH_IT(.rem+0x10, .rem_patch+0x10) |
| 930 | PATCH_IT(.rem+0x18, .rem_patch+0x18) |
| 931 | PATCH_IT(.rem+0x20, .rem_patch+0x20) |
| 932 | PATCH_IT(.rem+0x28, .rem_patch+0x28) |
| 933 | |
| 934 | /* Signed division. */ |
| 935 | PATCH_IT(.div, .div_patch) |
| 936 | PATCH_IT(.div+0x08, .div_patch+0x08) |
| 937 | PATCH_IT(.div+0x10, .div_patch+0x10) |
| 938 | PATCH_IT(.div+0x18, .div_patch+0x18) |
| 939 | PATCH_IT(.div+0x20, .div_patch+0x20) |
| 940 | |
| 941 | /* Unsigned multiply. */ |
| 942 | PATCH_IT(.umul, .umul_patch) |
| 943 | PATCH_IT(.umul+0x08, .umul_patch+0x08) |
| 944 | |
| 945 | /* Unsigned remainder. */ |
| 946 | PATCH_IT(.urem, .urem_patch) |
| 947 | PATCH_IT(.urem+0x08, .urem_patch+0x08) |
| 948 | PATCH_IT(.urem+0x10, .urem_patch+0x10) |
| 949 | PATCH_IT(.urem+0x18, .urem_patch+0x18) |
| 950 | |
| 951 | /* Unsigned division. */ |
| 952 | PATCH_IT(.udiv, .udiv_patch) |
| 953 | PATCH_IT(.udiv+0x08, .udiv_patch+0x08) |
| 954 | PATCH_IT(.udiv+0x10, .udiv_patch+0x10) |
| 955 | |
| 956 | #undef PATCH_IT |
| 957 | |
| 958 | /* Ok, the PROM could have done funny things and apple cider could still |
| 959 | * be sitting in the fault status/address registers. Read them all to |
| 960 | * clear them so we don't get magic faults later on. |
| 961 | */ |
| 962 | /* This sucks, apparently this makes Vikings call prom panic, will fix later */ |
| 963 | 2: |
| 964 | rd %psr, %o1 |
| 965 | srl %o1, 28, %o1 ! Get a type of the CPU |
| 966 | |
| 967 | subcc %o1, 4, %g0 ! TI: Viking or MicroSPARC |
| 968 | be sun4c_continue_boot |
| 969 | nop |
| 970 | |
| 971 | set AC_M_SFSR, %o0 |
| 972 | lda [%o0] ASI_M_MMUREGS, %g0 |
| 973 | set AC_M_SFAR, %o0 |
| 974 | lda [%o0] ASI_M_MMUREGS, %g0 |
| 975 | |
| 976 | /* Fujitsu MicroSPARC-II has no asynchronous flavors of FARs */ |
| 977 | subcc %o1, 0, %g0 |
| 978 | be sun4c_continue_boot |
| 979 | nop |
| 980 | |
| 981 | set AC_M_AFSR, %o0 |
| 982 | lda [%o0] ASI_M_MMUREGS, %g0 |
| 983 | set AC_M_AFAR, %o0 |
| 984 | lda [%o0] ASI_M_MMUREGS, %g0 |
| 985 | nop |
| 986 | |
| 987 | |
| 988 | sun4c_continue_boot: |
| 989 | |
| 990 | |
| 991 | /* Aieee, now set PC and nPC, enable traps, give ourselves a stack and it's |
| 992 | * show-time! |
| 993 | */ |
| 994 | |
| 995 | sethi %hi(cputyp), %o0 |
| 996 | st %g4, [%o0 + %lo(cputyp)] |
| 997 | |
| 998 | /* Turn on Supervisor, EnableFloating, and all the PIL bits. |
| 999 | * Also puts us in register window zero with traps off. |
| 1000 | */ |
| 1001 | set (PSR_PS | PSR_S | PSR_PIL | PSR_EF), %g2 |
| 1002 | wr %g2, 0x0, %psr |
| 1003 | WRITE_PAUSE |
| 1004 | |
| 1005 | /* I want a kernel stack NOW! */ |
| 1006 | set init_thread_union, %g1 |
| 1007 | set (THREAD_SIZE - STACKFRAME_SZ), %g2 |
| 1008 | add %g1, %g2, %sp |
| 1009 | mov 0, %fp /* And for good luck */ |
| 1010 | |
| 1011 | /* Zero out our BSS section. */ |
| 1012 | set __bss_start , %o0 ! First address of BSS |
| 1013 | set end , %o1 ! Last address of BSS |
| 1014 | add %o0, 0x1, %o0 |
| 1015 | 1: |
| 1016 | stb %g0, [%o0] |
| 1017 | subcc %o0, %o1, %g0 |
| 1018 | bl 1b |
| 1019 | add %o0, 0x1, %o0 |
| 1020 | |
| 1021 | /* Initialize the uwinmask value for init task just in case. |
| 1022 | * But first make current_set[boot_cpu_id] point to something useful. |
| 1023 | */ |
| 1024 | set init_thread_union, %g6 |
| 1025 | set current_set, %g2 |
| 1026 | #ifdef CONFIG_SMP |
| 1027 | sethi %hi(boot_cpu_id4), %g3 |
| 1028 | ldub [%g3 + %lo(boot_cpu_id4)], %g3 |
| 1029 | st %g6, [%g2] |
| 1030 | add %g2, %g3, %g2 |
| 1031 | #endif |
| 1032 | st %g6, [%g2] |
| 1033 | |
| 1034 | st %g0, [%g6 + TI_UWINMASK] |
| 1035 | |
| 1036 | /* Compute NWINDOWS and stash it away. Now uses %wim trick explained |
| 1037 | * in the V8 manual. Ok, this method seems to work, Sparc is cool... |
| 1038 | * No, it doesn't work, have to play the save/readCWP/restore trick. |
| 1039 | */ |
| 1040 | |
| 1041 | wr %g0, 0x0, %wim ! so we do not get a trap |
| 1042 | WRITE_PAUSE |
| 1043 | |
| 1044 | save |
| 1045 | |
| 1046 | rd %psr, %g3 |
| 1047 | |
| 1048 | restore |
| 1049 | |
| 1050 | and %g3, 0x1f, %g3 |
| 1051 | add %g3, 0x1, %g3 |
| 1052 | |
| 1053 | mov 2, %g1 |
| 1054 | wr %g1, 0x0, %wim ! make window 1 invalid |
| 1055 | WRITE_PAUSE |
| 1056 | |
| 1057 | cmp %g3, 0x7 |
| 1058 | bne 2f |
| 1059 | nop |
| 1060 | |
| 1061 | /* Adjust our window handling routines to |
| 1062 | * do things correctly on 7 window Sparcs. |
| 1063 | */ |
| 1064 | |
| 1065 | #define PATCH_INSN(src, dest) \ |
| 1066 | set src, %g5; \ |
| 1067 | set dest, %g2; \ |
| 1068 | ld [%g5], %g4; \ |
| 1069 | st %g4, [%g2]; |
| 1070 | |
| 1071 | /* Patch for window spills... */ |
| 1072 | PATCH_INSN(spnwin_patch1_7win, spnwin_patch1) |
| 1073 | PATCH_INSN(spnwin_patch2_7win, spnwin_patch2) |
| 1074 | PATCH_INSN(spnwin_patch3_7win, spnwin_patch3) |
| 1075 | |
| 1076 | /* Patch for window fills... */ |
| 1077 | PATCH_INSN(fnwin_patch1_7win, fnwin_patch1) |
| 1078 | PATCH_INSN(fnwin_patch2_7win, fnwin_patch2) |
| 1079 | |
| 1080 | /* Patch for trap entry setup... */ |
| 1081 | PATCH_INSN(tsetup_7win_patch1, tsetup_patch1) |
| 1082 | PATCH_INSN(tsetup_7win_patch2, tsetup_patch2) |
| 1083 | PATCH_INSN(tsetup_7win_patch3, tsetup_patch3) |
| 1084 | PATCH_INSN(tsetup_7win_patch4, tsetup_patch4) |
| 1085 | PATCH_INSN(tsetup_7win_patch5, tsetup_patch5) |
| 1086 | PATCH_INSN(tsetup_7win_patch6, tsetup_patch6) |
| 1087 | |
| 1088 | /* Patch for returning from traps... */ |
| 1089 | PATCH_INSN(rtrap_7win_patch1, rtrap_patch1) |
| 1090 | PATCH_INSN(rtrap_7win_patch2, rtrap_patch2) |
| 1091 | PATCH_INSN(rtrap_7win_patch3, rtrap_patch3) |
| 1092 | PATCH_INSN(rtrap_7win_patch4, rtrap_patch4) |
| 1093 | PATCH_INSN(rtrap_7win_patch5, rtrap_patch5) |
| 1094 | |
| 1095 | /* Patch for killing user windows from the register file. */ |
| 1096 | PATCH_INSN(kuw_patch1_7win, kuw_patch1) |
| 1097 | |
| 1098 | /* Now patch the kernel window flush sequences. |
| 1099 | * This saves 2 traps on every switch and fork. |
| 1100 | */ |
| 1101 | set 0x01000000, %g4 |
| 1102 | set flush_patch_one, %g5 |
| 1103 | st %g4, [%g5 + 0x18] |
| 1104 | st %g4, [%g5 + 0x1c] |
| 1105 | set flush_patch_two, %g5 |
| 1106 | st %g4, [%g5 + 0x18] |
| 1107 | st %g4, [%g5 + 0x1c] |
| 1108 | set flush_patch_three, %g5 |
| 1109 | st %g4, [%g5 + 0x18] |
| 1110 | st %g4, [%g5 + 0x1c] |
| 1111 | set flush_patch_four, %g5 |
| 1112 | st %g4, [%g5 + 0x18] |
| 1113 | st %g4, [%g5 + 0x1c] |
| 1114 | set flush_patch_exception, %g5 |
| 1115 | st %g4, [%g5 + 0x18] |
| 1116 | st %g4, [%g5 + 0x1c] |
| 1117 | set flush_patch_switch, %g5 |
| 1118 | st %g4, [%g5 + 0x18] |
| 1119 | st %g4, [%g5 + 0x1c] |
| 1120 | |
| 1121 | 2: |
| 1122 | sethi %hi(nwindows), %g4 |
| 1123 | st %g3, [%g4 + %lo(nwindows)] ! store final value |
| 1124 | sub %g3, 0x1, %g3 |
| 1125 | sethi %hi(nwindowsm1), %g4 |
| 1126 | st %g3, [%g4 + %lo(nwindowsm1)] |
| 1127 | |
| 1128 | /* Here we go, start using Linux's trap table... */ |
| 1129 | set trapbase, %g3 |
| 1130 | wr %g3, 0x0, %tbr |
| 1131 | WRITE_PAUSE |
| 1132 | |
| 1133 | /* Finally, turn on traps so that we can call c-code. */ |
| 1134 | rd %psr, %g3 |
| 1135 | wr %g3, 0x0, %psr |
| 1136 | WRITE_PAUSE |
| 1137 | |
| 1138 | wr %g3, PSR_ET, %psr |
| 1139 | WRITE_PAUSE |
| 1140 | |
| 1141 | /* First we call prom_init() to set up PROMLIB, then |
| 1142 | * off to start_kernel(). |
| 1143 | */ |
| 1144 | |
| 1145 | sethi %hi(prom_vector_p), %g5 |
| 1146 | ld [%g5 + %lo(prom_vector_p)], %o0 |
| 1147 | call prom_init |
| 1148 | nop |
| 1149 | |
| 1150 | call start_kernel |
| 1151 | nop |
| 1152 | |
| 1153 | /* We should not get here. */ |
| 1154 | call halt_me |
| 1155 | nop |
| 1156 | |
| 1157 | sun4_init: |
| 1158 | #ifdef CONFIG_SUN4 |
| 1159 | /* There, happy now Adrian? */ |
| 1160 | set cputypval, %o2 ! Let everyone know we |
| 1161 | set ' ', %o0 ! are a "sun4 " architecture |
| 1162 | stb %o0, [%o2 + 0x4] |
| 1163 | |
| 1164 | b got_prop |
| 1165 | nop |
| 1166 | #else |
| 1167 | sethi %hi(SUN4_PROM_VECTOR+0x84), %o1 |
| 1168 | ld [%o1 + %lo(SUN4_PROM_VECTOR+0x84)], %o1 |
| 1169 | set sun4_notsup, %o0 |
| 1170 | call %o1 /* printf */ |
| 1171 | nop |
| 1172 | sethi %hi(SUN4_PROM_VECTOR+0xc4), %o1 |
| 1173 | ld [%o1 + %lo(SUN4_PROM_VECTOR+0xc4)], %o1 |
| 1174 | call %o1 /* exittomon */ |
| 1175 | nop |
| 1176 | 1: ba 1b ! Cannot exit into KMON |
| 1177 | nop |
| 1178 | #endif |
| 1179 | no_sun4e_here: |
| 1180 | ld [%g7 + 0x68], %o1 |
| 1181 | set sun4e_notsup, %o0 |
| 1182 | call %o1 |
| 1183 | nop |
| 1184 | b halt_me |
| 1185 | nop |
| 1186 | |
| 1187 | __INITDATA |
| 1188 | |
| 1189 | sun4u_1: |
| 1190 | .asciz "finddevice" |
| 1191 | .align 4 |
| 1192 | sun4u_2: |
| 1193 | .asciz "/chosen" |
| 1194 | .align 4 |
| 1195 | sun4u_3: |
| 1196 | .asciz "getprop" |
| 1197 | .align 4 |
| 1198 | sun4u_4: |
| 1199 | .asciz "stdout" |
| 1200 | .align 4 |
| 1201 | sun4u_5: |
| 1202 | .asciz "write" |
| 1203 | .align 4 |
| 1204 | sun4u_6: |
| 1205 | .asciz "\n\rOn sun4u you have to use UltraLinux (64bit) kernel\n\rand not a 32bit sun4[cdem] version\n\r\n\r" |
| 1206 | sun4u_6e: |
| 1207 | .align 4 |
| 1208 | sun4u_7: |
| 1209 | .asciz "exit" |
| 1210 | .align 8 |
| 1211 | sun4u_a1: |
| 1212 | .word 0, sun4u_1, 0, 1, 0, 1, 0, sun4u_2, 0 |
| 1213 | sun4u_r1: |
| 1214 | .word 0 |
| 1215 | sun4u_a2: |
| 1216 | .word 0, sun4u_3, 0, 4, 0, 1, 0 |
| 1217 | sun4u_i2: |
| 1218 | .word 0, 0, sun4u_4, 0, sun4u_1, 0, 8, 0 |
| 1219 | sun4u_r2: |
| 1220 | .word 0 |
| 1221 | sun4u_a3: |
| 1222 | .word 0, sun4u_5, 0, 3, 0, 1, 0 |
| 1223 | sun4u_i3: |
| 1224 | .word 0, 0, sun4u_6, 0, sun4u_6e - sun4u_6 - 1, 0 |
| 1225 | sun4u_r3: |
| 1226 | .word 0 |
| 1227 | sun4u_a4: |
| 1228 | .word 0, sun4u_7, 0, 0, 0, 0 |
| 1229 | sun4u_r4: |
| 1230 | |
| 1231 | __INIT |
| 1232 | no_sun4u_here: |
| 1233 | set sun4u_a1, %o0 |
| 1234 | set current_pc, %l2 |
| 1235 | cmp %l2, %g3 |
| 1236 | be 1f |
| 1237 | mov %o4, %l0 |
| 1238 | sub %g3, %l2, %l6 |
| 1239 | add %o0, %l6, %o0 |
| 1240 | mov %o0, %l4 |
| 1241 | mov sun4u_r4 - sun4u_a1, %l3 |
| 1242 | ld [%l4], %l5 |
| 1243 | 2: |
| 1244 | add %l4, 4, %l4 |
| 1245 | cmp %l5, %l2 |
| 1246 | add %l5, %l6, %l5 |
| 1247 | bgeu,a 3f |
| 1248 | st %l5, [%l4 - 4] |
| 1249 | 3: |
| 1250 | subcc %l3, 4, %l3 |
| 1251 | bne 2b |
| 1252 | ld [%l4], %l5 |
| 1253 | 1: |
| 1254 | call %l0 |
| 1255 | mov %o0, %l1 |
| 1256 | |
| 1257 | ld [%l1 + (sun4u_r1 - sun4u_a1)], %o1 |
| 1258 | add %l1, (sun4u_a2 - sun4u_a1), %o0 |
| 1259 | call %l0 |
| 1260 | st %o1, [%o0 + (sun4u_i2 - sun4u_a2)] |
| 1261 | |
| 1262 | ld [%l1 + (sun4u_1 - sun4u_a1)], %o1 |
| 1263 | add %l1, (sun4u_a3 - sun4u_a1), %o0 |
| 1264 | call %l0 |
| 1265 | st %o1, [%o0 + (sun4u_i3 - sun4u_a3)] |
| 1266 | |
| 1267 | call %l0 |
| 1268 | add %l1, (sun4u_a4 - sun4u_a1), %o0 |
| 1269 | |
| 1270 | /* Not reached */ |
| 1271 | halt_me: |
| 1272 | ld [%g7 + 0x74], %o0 |
| 1273 | call %o0 ! Get us out of here... |
| 1274 | nop ! Apparently Solaris is better. |
| 1275 | |
| 1276 | /* Ok, now we continue in the .data/.text sections */ |
| 1277 | |
| 1278 | .data |
| 1279 | .align 4 |
| 1280 | |
| 1281 | /* |
| 1282 | * Fill up the prom vector, note in particular the kind first element, |
| 1283 | * no joke. I don't need all of them in here as the entire prom vector |
| 1284 | * gets initialized in c-code so all routines can use it. |
| 1285 | */ |
| 1286 | |
| 1287 | .globl prom_vector_p |
| 1288 | prom_vector_p: |
| 1289 | .word 0 |
| 1290 | |
| 1291 | /* We calculate the following at boot time, window fills/spills and trap entry |
| 1292 | * code uses these to keep track of the register windows. |
| 1293 | */ |
| 1294 | |
| 1295 | .align 4 |
| 1296 | .globl nwindows |
| 1297 | .globl nwindowsm1 |
| 1298 | nwindows: |
| 1299 | .word 8 |
| 1300 | nwindowsm1: |
| 1301 | .word 7 |
| 1302 | |
| 1303 | /* Boot time debugger vector value. We need this later on. */ |
| 1304 | |
| 1305 | .align 4 |
| 1306 | .globl linux_dbvec |
| 1307 | linux_dbvec: |
| 1308 | .word 0 |
| 1309 | .word 0 |
| 1310 | |
| 1311 | .align 8 |
| 1312 | |
| 1313 | .globl lvl14_save |
| 1314 | lvl14_save: |
| 1315 | .word 0 |
| 1316 | .word 0 |
| 1317 | .word 0 |
| 1318 | .word 0 |
| 1319 | .word t_irq14 |
| 1320 | |
| 1321 | .section ".fixup",#alloc,#execinstr |
| 1322 | .globl __ret_efault |
| 1323 | __ret_efault: |
| 1324 | ret |
| 1325 | restore %g0, -EFAULT, %o0 |