1 /* !! 1 /* $Id: head.S,v 1.105 2001/08/12 09:08:56 davem Exp $
2 * This file is subject to the terms and condi !! 2 * head.S: The initial boot code for the Sparc port of Linux.
3 * License. See the file "COPYING" in the mai !! 3 *
4 * for more details. !! 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)
5 * 9 *
6 * Copyright (C) 1994, 1995 Waldorf Electronic !! 10 * CompactPCI platform by Eric Brower, 1999.
7 * Written by Ralf Baechle and Andreas Busse <<
8 * Copyright (C) 1994 - 99, 2003, 06 Ralf Baec <<
9 * Copyright (C) 1996 Paul M. Antoine <<
10 * Modified for DECStation and hence R3000 sup <<
11 * Further modifications by David S. Miller an <<
12 * Copyright (C) 1999 Silicon Graphics, Inc. <<
13 * Kevin Kissell, kevink@mips.com and Carsten <<
14 * Copyright (C) 2000 MIPS Technologies, Inc. <<
15 */ 11 */
>> 12
>> 13 #include <linux/version.h>
>> 14 #include <linux/config.h>
16 #include <linux/init.h> 15 #include <linux/init.h>
17 #include <linux/threads.h> <<
18 16
19 #include <asm/addrspace.h> !! 17 #include <asm/cprefix.h>
20 #include <asm/asm.h> !! 18 #include <asm/head.h>
21 #include <asm/asmmacro.h> !! 19 #include <asm/asi.h>
22 #include <asm/irqflags.h> !! 20 #include <asm/contregs.h>
23 #include <asm/regdef.h> !! 21 #include <asm/ptrace.h>
24 #include <asm/mipsregs.h> !! 22 #include <asm/psr.h>
25 #include <asm/stackframe.h> !! 23 #include <asm/page.h>
26 !! 24 #include <asm/kdebug.h>
27 #include <kernel-entry-init.h> !! 25 #include <asm/winmacro.h>
28 !! 26 #include <asm/errno.h>
29 /* !! 27
30 * For the moment disable interrupts, !! 28 .data
31 * set ST0_KX so that the CPU does not !! 29 /*
32 * 64-bit addresses. A full initializ !! 30 * The following are used with the prom_vector node-ops to figure out
33 * register is done later in per_cpu_t !! 31 * the cpu-type
34 */ !! 32 */
35 .macro setup_c0_status set clr !! 33
36 .set push !! 34 .align 4
37 mfc0 t0, CP0_STATUS !! 35 .globl C_LABEL(cputyp)
38 or t0, ST0_KERNEL_CUMASK|\set|0x1 !! 36 C_LABEL(cputyp):
39 xor t0, 0x1f|\clr !! 37 .word 1
40 mtc0 t0, CP0_STATUS !! 38
41 .set noreorder !! 39 .align 4
42 sll zero,3 !! 40 .globl C_LABEL(cputypval)
43 .set pop !! 41 C_LABEL(cputypval):
44 .endm !! 42 .asciz "sun4c"
45 !! 43 .ascii " "
46 .macro setup_c0_status_pri !! 44
47 #ifdef CONFIG_64BIT !! 45 C_LABEL(cputypvalend):
48 setup_c0_status ST0_KX 0 !! 46 C_LABEL(cputypvallen) = C_LABEL(cputypvar) - C_LABEL(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 C_LABEL(cputypvar):
>> 58 .asciz "compatability"
>> 59
>> 60 /* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */
>> 61 .align 4
>> 62 C_LABEL(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
49 #else 71 #else
50 setup_c0_status 0 0 !! 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
51 #endif 75 #endif
52 .endm <<
53 76
54 .macro setup_c0_status_sec !! 77 sun4e_notsup:
55 #ifdef CONFIG_64BIT !! 78 .asciz "Sparc-Linux sun4e support does not exist\n\n"
56 setup_c0_status ST0_KX ST0_BEV !! 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 C_LABEL(trapbase)
>> 90 _start: /* danger danger */
>> 91 __stext:
>> 92 _stext:
>> 93 start:
>> 94 C_LABEL(trapbase):
>> 95 #ifdef CONFIG_SMP
>> 96 C_LABEL(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) */
57 #else 129 #else
58 setup_c0_status 0 ST0_BEV !! 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 C_LABEL(end_traptable)
>> 204 C_LABEL(end_traptable):
>> 205
>> 206 #ifdef CONFIG_SMP
>> 207 /* Trap tables for the other cpus. */
>> 208 .globl C_LABEL(trapbase_cpu1), C_LABEL(trapbase_cpu2), C_LABEL(trapbase_cpu3)
>> 209 C_LABEL(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 C_LABEL(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 C_LABEL(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 C_LABEL(pg0), C_LABEL(pg1), C_LABEL(pg2), C_LABEL(pg3)
>> 420 .globl C_LABEL(empty_bad_page)
>> 421 .globl C_LABEL(empty_bad_page_table)
>> 422 .globl C_LABEL(empty_zero_page)
>> 423 .globl C_LABEL(swapper_pg_dir)
>> 424 C_LABEL(swapper_pg_dir): .skip PAGE_SIZE
>> 425 C_LABEL(pg0): .skip PAGE_SIZE
>> 426 C_LABEL(pg1): .skip PAGE_SIZE
>> 427 C_LABEL(pg2): .skip PAGE_SIZE
>> 428 C_LABEL(pg3): .skip PAGE_SIZE
>> 429 C_LABEL(empty_bad_page): .skip PAGE_SIZE
>> 430 C_LABEL(empty_bad_page_table): .skip PAGE_SIZE
>> 431 C_LABEL(empty_zero_page): .skip PAGE_SIZE
>> 432
>> 433 .global C_LABEL(root_flags)
>> 434 .global C_LABEL(ram_flags)
>> 435 .global C_LABEL(root_dev)
>> 436 .global C_LABEL(sparc_ramdisk_image)
>> 437 .global C_LABEL(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 C_LABEL(root_flags):
>> 447 .half 1
>> 448 C_LABEL(root_dev):
>> 449 .half 0
>> 450 C_LABEL(ram_flags):
>> 451 .half 0
>> 452 C_LABEL(sparc_ramdisk_image):
>> 453 .word 0
>> 454 C_LABEL(sparc_ramdisk_size):
>> 455 .word 0
>> 456 .word C_LABEL(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 C_LABEL(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]
59 #endif 526 #endif
60 .endm !! 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 *
>> 627 * XXX Should not use empirical constant, but Gas gets an XXX
>> 628 * XXX upset stomach with the bitshift I would have to use XXX
>> 629 */
>> 630 add %o1, 0x3c0, %o3
>> 631
>> 632 /* Poke the entry into the calculated address. */
>> 633 sta %o2, [%o3] ASI_M_BYPASS
>> 634
>> 635 /* I don't get it Sun, if you engineered all these
>> 636 * boot loaders and the PROM (thank you for the debugging
>> 637 * features btw) why did you not have them load kernel
>> 638 * images up in high address space, since this is necessary
>> 639 * for ABI compliance anyways? Does this low-mapping provide
>> 640 * enhanced interoperability?
>> 641 *
>> 642 * "The PROM is the computer."
>> 643 */
>> 644
>> 645 /* Ok, restore the MMU control register we saved in %g5 */
>> 646 sta %g5, [%g0] ASI_M_MMUREGS ! POW... ouch
>> 647
>> 648 /* Turn traps back on. We saved it in %g3 earlier. */
>> 649 wr %g3, 0x0, %psr ! tick tock, tick tock
>> 650
>> 651 /* Now we burn precious CPU cycles due to bad engineering. */
>> 652 WRITE_PAUSE
>> 653
>> 654 /* Wow, all that just to move a 32-bit value from one
>> 655 * place to another... Jump to high memory.
>> 656 */
>> 657 b go_to_highmem
>> 658 nop
61 659
62 #ifndef CONFIG_NO_EXCEPT_FILL !! 660 /* This works on viking's in Mbus mode and all
63 /* !! 661 * other MBUS modules. It is virtually the same as
64 * Reserved space for exception handle !! 662 * the above madness sans turning traps off and flipping
65 * Necessary for machines which link t !! 663 * the AC bit.
66 */ !! 664 */
67 .fill 0x400 !! 665 srmmu_nviking:
>> 666 set AC_M_CTPR, %g1
>> 667 lda [%g1] ASI_M_MMUREGS, %g1 ! get ctx table ptr
>> 668 sll %g1, 0x4, %g1 ! make physical addr
>> 669 lda [%g1] ASI_M_BYPASS, %g1 ! ptr to level 1 pg_table
>> 670 srl %g1, 0x4, %g1
>> 671 sll %g1, 0x8, %g1 ! make phys addr for l1 tbl
>> 672
>> 673 lda [%g1] ASI_M_BYPASS, %g2 ! get level1 entry for 0x0
>> 674 add %g1, 0x3c0, %g3 ! XXX AWAY WITH EMPIRICALS
>> 675 sta %g2, [%g3] ASI_M_BYPASS ! place at KERNBASE entry
>> 676 b go_to_highmem
>> 677 nop ! wheee....
>> 678
>> 679 /* This remaps the kernel on Sun4/4xx machines
>> 680 * that have the Sun Mutant Three Level MMU.
>> 681 * It's like a platypus, Sun didn't have the
>> 682 * SRMMU in conception so they kludged the three
>> 683 * level logic in the regular Sun4 MMU probably.
>> 684 *
>> 685 * Basically, you take each entry in the top level
>> 686 * directory that maps the low 3MB starting at
>> 687 * address zero and put the mapping in the KERNBASE
>> 688 * slots. These top level pgd's are called regmaps.
>> 689 */
>> 690 sun4_mutant_remap:
>> 691 or %g0, %g0, %g3 ! source base
>> 692 sethi %hi(KERNBASE), %g4 ! destination base
>> 693 or %g4, %lo(KERNBASE), %g4
>> 694 sethi %hi(0x300000), %g5
>> 695 or %g5, %lo(0x300000), %g5 ! upper bound 3MB
>> 696 or %g0, 0x1, %l6
>> 697 sll %l6, 24, %l6 ! Regmap mapping size
>> 698 add %g3, 0x2, %g3 ! Base magic
>> 699 add %g4, 0x2, %g4 ! Base magic
>> 700
>> 701 /* Main remapping loop on Sun4-Mutant-MMU.
>> 702 * "I am not an animal..." -Famous Mutant Person
>> 703 */
>> 704 sun4_mutant_loop:
>> 705 lduha [%g3] ASI_REGMAP, %g2 ! Get lower entry
>> 706 stha %g2, [%g4] ASI_REGMAP ! Store in high entry
>> 707 add %g4, %l6, %g4 ! Move up high memory ptr
>> 708 subcc %g3, %g5, %g0 ! Reached our limit?
>> 709 blu sun4_mutant_loop ! Nope, loop again
>> 710 add %g3, %l6, %g3 ! delay, Move up low ptr
>> 711 b go_to_highmem ! Jump to high memory.
>> 712 nop
>> 713
>> 714 /* The following is for non-4/4xx sun4 MMU's. */
>> 715 sun4_normal_remap:
>> 716 mov 0, %g3 ! source base
>> 717 set KERNBASE, %g4 ! destination base
>> 718 set 0x300000, %g5 ! upper bound 3MB
>> 719 mov 1, %l6
>> 720 sll %l6, 18, %l6 ! sun4 mmu segmap size
>> 721 sun4_normal_loop:
>> 722 lduha [%g3] ASI_SEGMAP, %g6 ! load phys_seg
>> 723 stha %g6, [%g4] ASI_SEGMAP ! stort new virt mapping
>> 724 add %g3, %l6, %g3 ! increment source pointer
>> 725 subcc %g3, %g5, %g0 ! reached limit?
>> 726 blu sun4_normal_loop ! nope, loop again
>> 727 add %g4, %l6, %g4 ! delay, increment dest ptr
>> 728 b go_to_highmem
>> 729 nop
>> 730
>> 731 /* The following works for Sun4c MMU's */
>> 732 sun4c_remap:
>> 733 mov 0, %g3 ! source base
>> 734 set KERNBASE, %g4 ! destination base
>> 735 set 0x300000, %g5 ! upper bound 3MB
>> 736 mov 1, %l6
>> 737 sll %l6, 18, %l6 ! sun4c mmu segmap size
>> 738 sun4c_remap_loop:
>> 739 lda [%g3] ASI_SEGMAP, %g6 ! load phys_seg
>> 740 sta %g6, [%g4] ASI_SEGMAP ! store new virt mapping
>> 741 add %g3, %l6, %g3 ! Increment source ptr
>> 742 subcc %g3, %g5, %g0 ! Reached limit?
>> 743 bl sun4c_remap_loop ! Nope, loop again
>> 744 add %g4, %l6, %g4 ! delay, Increment dest ptr
>> 745
>> 746 /* Now do a non-relative jump so that PC is in high-memory */
>> 747 go_to_highmem:
>> 748 set execute_in_high_mem, %g1
>> 749 jmpl %g1, %g0
>> 750 nop
>> 751
>> 752 /* This is to align init_task_union properly, be careful. -DaveM */
>> 753 .align 8192
>> 754
>> 755 /* The code above should be at beginning and we have to take care about
>> 756 * short jumps, as branching to .text.init section from .text is usually
>> 757 * impossible */
>> 758 __INIT
>> 759 /* Acquire boot time privileged register values, this will help debugging.
>> 760 * I figure out and store nwindows and nwindowsm1 later on.
>> 761 */
>> 762 execute_in_high_mem:
>> 763 mov %l0, %o0 ! put back romvec
>> 764 mov %l1, %o1 ! and debug_vec
>> 765
>> 766 sethi %hi( C_LABEL(prom_vector_p) ), %g1
>> 767 st %o0, [%g1 + %lo( C_LABEL(prom_vector_p) )]
>> 768
>> 769 sethi %hi( C_LABEL(linux_dbvec) ), %g1
>> 770 st %o1, [%g1 + %lo( C_LABEL(linux_dbvec) )]
>> 771
>> 772 ld [%o0 + 0x4], %o3
>> 773 and %o3, 0x3, %o5 ! get the version
>> 774
>> 775 cmp %o3, 0x2 ! a v2 prom?
>> 776 be found_version
>> 777 nop
>> 778
>> 779 /* paul@sfe.com.au */
>> 780 cmp %o3, 0x3 ! a v3 prom?
>> 781 be found_version
>> 782 nop
>> 783
>> 784 /* Old sun4's pass our load address into %o0 instead of the prom
>> 785 * pointer. On sun4's you have to hard code the romvec pointer into
>> 786 * your code. Sun probably still does that because they don't even
>> 787 * trust their own "OpenBoot" specifications.
>> 788 */
>> 789 set LOAD_ADDR, %g6
>> 790 cmp %o0, %g6 ! an old sun4?
>> 791 be sun4_init
>> 792 nop
>> 793
>> 794 found_version:
>> 795 #ifdef CONFIG_SUN4
>> 796 /* For people who try sun4 kernels, even if Configure.help advises them. */
>> 797 ld [%g7 + 0x68], %o1
>> 798 set sun4cdm_notsup, %o0
>> 799 call %o1
>> 800 nop
>> 801 b halt_me
>> 802 nop
68 #endif 803 #endif
>> 804 /* Get the machine type via the mysterious romvec node operations. */
>> 805
>> 806 add %g7, 0x1c, %l1
>> 807 ld [%l1], %l0
>> 808 ld [%l0], %l0
>> 809 call %l0
>> 810 or %g0, %g0, %o0 ! next_node(0) = first_node
>> 811 or %o0, %g0, %g6
>> 812
>> 813 sethi %hi( C_LABEL(cputypvar) ), %o1 ! First node has cpu-arch
>> 814 or %o1, %lo( C_LABEL(cputypvar) ), %o1
>> 815 sethi %hi( C_LABEL(cputypval) ), %o2 ! information, the string
>> 816 or %o2, %lo( C_LABEL(cputypval) ), %o2
>> 817 ld [%l1], %l0 ! 'compatibility' tells
>> 818 ld [%l0 + 0xc], %l0 ! that we want 'sun4x' where
>> 819 call %l0 ! x is one of '', 'c', 'm',
>> 820 nop ! 'd' or 'e'. %o2 holds pointer
>> 821 ! to a buf where above string
>> 822 ! will get stored by the prom.
>> 823
>> 824 subcc %o0, %g0, %g0
>> 825 bpos got_prop ! Got the property
>> 826 nop
69 827
70 EXPORT(_stext) !! 828 or %g6, %g0, %o0
>> 829 sethi %hi( C_LABEL(cputypvar_sun4m) ), %o1
>> 830 or %o1, %lo( C_LABEL(cputypvar_sun4m) ), %o1
>> 831 sethi %hi( C_LABEL(cputypval) ), %o2
>> 832 or %o2, %lo( C_LABEL(cputypval) ), %o2
>> 833 ld [%l1], %l0
>> 834 ld [%l0 + 0xc], %l0
>> 835 call %l0
>> 836 nop
71 837
72 #ifdef CONFIG_BOOT_RAW !! 838 got_prop:
73 /* !! 839 set C_LABEL(cputypval), %o2
74 * Give us a fighting chance of runnin !! 840 ldub [%o2 + 0x4], %l1
75 * kernel load address. This is neede <<
76 * not have a ELF loader yet. <<
77 */ <<
78 FEXPORT(__kernel_entry) <<
79 j kernel_entry <<
80 #endif /* CONFIG_BOOT_RAW */ <<
81 841
82 __REF !! 842 cmp %l1, ' '
>> 843 be 1f
>> 844 cmp %l1, 'c'
>> 845 be 1f
>> 846 cmp %l1, 'm'
>> 847 be 1f
>> 848 cmp %l1, 's'
>> 849 be 1f
>> 850 cmp %l1, 'd'
>> 851 be 1f
>> 852 cmp %l1, 'e'
>> 853 be no_sun4e_here ! Could be a sun4e.
>> 854 nop
>> 855 b no_sun4u_here ! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :))
>> 856 nop
83 857
84 NESTED(kernel_entry, 16, sp) !! 858 1: set C_LABEL(cputypval), %l1
>> 859 ldub [%l1 + 0x4], %l1
>> 860 cmp %l1, 'm' ! Test for sun4d, sun4e ?
>> 861 be sun4m_init
>> 862 cmp %l1, 's' ! Treat sun4s as sun4m
>> 863 be sun4m_init
>> 864 cmp %l1, 'd' ! Let us see how the beast will die
>> 865 be sun4d_init
>> 866 nop
85 867
86 kernel_entry_setup !! 868 /* Jump into mmu context zero. */
>> 869 set AC_CONTEXT, %g1
>> 870 stba %g0, [%g1] ASI_CONTROL
87 871
88 setup_c0_status_pri !! 872 b sun4c_continue_boot
>> 873 nop
89 874
90 /* We might not get launched at the ad !! 875 /* CPUID in bootbus can be found at PA 0xff0140000 */
91 so we jump there. */ !! 876 #define SUN4D_BOOTBUS_CPUID 0xf0140000
92 PTR_LA t0, 0f !! 877
93 jr t0 !! 878 sun4d_init:
94 0: !! 879 /* Need to patch call to handler_irq */
>> 880 set C_LABEL(patch_handler_irq), %g4
>> 881 set C_LABEL(sun4d_handler_irq), %g5
>> 882 sethi %hi(0x40000000), %g3 ! call
>> 883 sub %g5, %g4, %g5
>> 884 srl %g5, 2, %g5
>> 885 or %g5, %g3, %g5
>> 886 st %g5, [%g4]
>> 887
>> 888 #ifdef CONFIG_SMP
>> 889 /* Get our CPU id out of bootbus */
>> 890 set SUN4D_BOOTBUS_CPUID, %g3
>> 891 lduba [%g3] ASI_M_CTL, %g3
>> 892 and %g3, 0xf8, %g3
>> 893 srl %g3, 3, %g4
>> 894 sta %g4, [%g0] ASI_M_VIKING_TMP1
>> 895 sethi %hi(boot_cpu_id), %g5
>> 896 stb %g4, [%g5 + %lo(boot_cpu_id)]
>> 897 sll %g4, 2, %g4
>> 898 sethi %hi(boot_cpu_id4), %g5
>> 899 stb %g4, [%g5 + %lo(boot_cpu_id4)]
>> 900 #endif
>> 901
>> 902 /* Fall through to sun4m_init */
>> 903
>> 904 sun4m_init:
>> 905 /* XXX Fucking Cypress... */
>> 906 lda [%g0] ASI_M_MMUREGS, %g5
>> 907 srl %g5, 28, %g4
>> 908
>> 909 cmp %g4, 1
>> 910 bne 1f
>> 911 srl %g5, 24, %g4
>> 912
>> 913 and %g4, 0xf, %g4
>> 914 cmp %g4, 7 /* This would be a HyperSparc. */
>> 915
>> 916 bne 2f
>> 917 nop
95 918
96 PTR_LA t0, __bss_start <<
97 LONG_S zero, (t0) <<
98 PTR_LA t1, __bss_stop - LONGS <<
99 1: 919 1:
100 PTR_ADDIU t0, LONGSIZE <<
101 LONG_S zero, (t0) <<
102 bne t0, t1, 1b <<
103 <<
104 LONG_S a0, fw_arg0 <<
105 LONG_S a1, fw_arg1 <<
106 LONG_S a2, fw_arg2 <<
107 LONG_S a3, fw_arg3 <<
108 <<
109 MTC0 zero, CP0_CONTEXT <<
110 #ifdef CONFIG_64BIT <<
111 MTC0 zero, CP0_XCONTEXT <<
112 #endif <<
113 PTR_LA $28, init_thread_union <<
114 /* Set the SP after an empty pt_regs. <<
115 PTR_LI sp, _THREAD_SIZE - 32 <<
116 PTR_ADDU sp, $28 <<
117 back_to_back_c0_hazard <<
118 set_saved_sp sp, t0, t1 <<
119 PTR_SUBU sp, 4 * SZREG <<
120 <<
121 #ifdef CONFIG_RELOCATABLE <<
122 /* Copy kernel and apply the relocatio <<
123 jal relocate_kernel <<
124 <<
125 /* Repoint the sp into the new kernel <<
126 PTR_LI sp, _THREAD_SIZE - 32 <<
127 PTR_ADDU sp, $28 <<
128 set_saved_sp sp, t0, t1 <<
129 PTR_SUBU sp, 4 * SZREG <<
130 <<
131 /* <<
132 * relocate_kernel returns the entry p <<
133 * in the relocated kernel or the orig <<
134 * some reason relocation failed - jum <<
135 * with instruction hazard barrier bec <<
136 * newly sync'd icache. <<
137 */ <<
138 jr.hb v0 <<
139 #else /* !CONFIG_RELOCATABLE */ <<
140 j start_kernel <<
141 #endif /* !CONFIG_RELOCATABLE */ <<
142 END(kernel_entry) <<
143 920
>> 921 #define PATCH_IT(dst, src) \
>> 922 set (dst), %g5; \
>> 923 set (src), %g4; \
>> 924 ld [%g4], %g3; \
>> 925 st %g3, [%g5]; \
>> 926 ld [%g4+0x4], %g3; \
>> 927 st %g3, [%g5+0x4];
>> 928
>> 929 /* Signed multiply. */
>> 930 PATCH_IT(.mul, .mul_patch)
>> 931 PATCH_IT(.mul+0x08, .mul_patch+0x08)
>> 932
>> 933 /* Signed remainder. */
>> 934 PATCH_IT(.rem, .rem_patch)
>> 935 PATCH_IT(.rem+0x08, .rem_patch+0x08)
>> 936 PATCH_IT(.rem+0x10, .rem_patch+0x10)
>> 937 PATCH_IT(.rem+0x18, .rem_patch+0x18)
>> 938 PATCH_IT(.rem+0x20, .rem_patch+0x20)
>> 939 PATCH_IT(.rem+0x28, .rem_patch+0x28)
>> 940
>> 941 /* Signed division. */
>> 942 PATCH_IT(.div, .div_patch)
>> 943 PATCH_IT(.div+0x08, .div_patch+0x08)
>> 944 PATCH_IT(.div+0x10, .div_patch+0x10)
>> 945 PATCH_IT(.div+0x18, .div_patch+0x18)
>> 946 PATCH_IT(.div+0x20, .div_patch+0x20)
>> 947
>> 948 /* Unsigned multiply. */
>> 949 PATCH_IT(.umul, .umul_patch)
>> 950 PATCH_IT(.umul+0x08, .umul_patch+0x08)
>> 951
>> 952 /* Unsigned remainder. */
>> 953 PATCH_IT(.urem, .urem_patch)
>> 954 PATCH_IT(.urem+0x08, .urem_patch+0x08)
>> 955 PATCH_IT(.urem+0x10, .urem_patch+0x10)
>> 956 PATCH_IT(.urem+0x18, .urem_patch+0x18)
>> 957
>> 958 /* Unsigned division. */
>> 959 PATCH_IT(.udiv, .udiv_patch)
>> 960 PATCH_IT(.udiv+0x08, .udiv_patch+0x08)
>> 961 PATCH_IT(.udiv+0x10, .udiv_patch+0x10)
>> 962
>> 963 #undef PATCH_IT
>> 964
>> 965 /* Ok, the PROM could have done funny things and apple cider could still
>> 966 * be sitting in the fault status/address registers. Read them all to
>> 967 * clear them so we don't get magic faults later on.
>> 968 */
>> 969 /* This sucks, apparently this makes Vikings call prom panic, will fix later */
>> 970 2:
>> 971 rd %psr, %o1
>> 972 srl %o1, 28, %o1 ! Get a type of the CPU
>> 973
>> 974 subcc %o1, 4, %g0 ! TI: Viking or MicroSPARC
>> 975 be sun4c_continue_boot
>> 976 nop
>> 977
>> 978 set AC_M_SFSR, %o0
>> 979 lda [%o0] ASI_M_MMUREGS, %g0
>> 980 set AC_M_SFAR, %o0
>> 981 lda [%o0] ASI_M_MMUREGS, %g0
>> 982
>> 983 /* Fujitsu MicroSPARC-II has no asynchronous flavors of FARs */
>> 984 subcc %o1, 0, %g0
>> 985 be sun4c_continue_boot
>> 986 nop
>> 987
>> 988 set AC_M_AFSR, %o0
>> 989 lda [%o0] ASI_M_MMUREGS, %g0
>> 990 set AC_M_AFAR, %o0
>> 991 lda [%o0] ASI_M_MMUREGS, %g0
>> 992 nop
>> 993
>> 994
>> 995 sun4c_continue_boot:
>> 996
>> 997
>> 998 /* Aieee, now set PC and nPC, enable traps, give ourselves a stack and it's
>> 999 * show-time!
>> 1000 */
>> 1001
>> 1002 sethi %hi( C_LABEL(cputyp) ), %o0
>> 1003 st %g4, [%o0 + %lo( C_LABEL(cputyp) )]
>> 1004
>> 1005 /* Turn on Supervisor, EnableFloating, and all the PIL bits.
>> 1006 * Also puts us in register window zero with traps off.
>> 1007 */
>> 1008 set (PSR_PS | PSR_S | PSR_PIL | PSR_EF), %g2
>> 1009 wr %g2, 0x0, %psr
>> 1010 WRITE_PAUSE
>> 1011
>> 1012 /* I want a kernel stack NOW! */
>> 1013 set C_LABEL(init_task_union), %g1
>> 1014 set (TASK_UNION_SIZE - STACKFRAME_SZ), %g2
>> 1015 add %g1, %g2, %sp
>> 1016 mov 0, %fp /* And for good luck */
>> 1017
>> 1018 /* Zero out our BSS section. */
>> 1019 set C_LABEL(__bss_start) , %o0 ! First address of BSS
>> 1020 set C_LABEL(end) , %o1 ! Last address of BSS
>> 1021 add %o0, 0x1, %o0
>> 1022 1:
>> 1023 stb %g0, [%o0]
>> 1024 subcc %o0, %o1, %g0
>> 1025 bl 1b
>> 1026 add %o0, 0x1, %o0
>> 1027
>> 1028 /* Initialize the umask value for init_task just in case.
>> 1029 * But first make current_set[boot_cpu_id] point to something useful.
>> 1030 */
>> 1031 set C_LABEL(init_task_union), %g6
>> 1032 set C_LABEL(current_set), %g2
144 #ifdef CONFIG_SMP 1033 #ifdef CONFIG_SMP
>> 1034 sethi %hi(C_LABEL(boot_cpu_id4)), %g3
>> 1035 ldub [%g3 + %lo(C_LABEL(boot_cpu_id4))], %g3
>> 1036 st %g6, [%g2]
>> 1037 add %g2, %g3, %g2
>> 1038 #endif
>> 1039 st %g6, [%g2]
>> 1040
>> 1041 st %g0, [%g6 + AOFF_task_thread + AOFF_thread_uwinmask]
>> 1042
>> 1043 /* Compute NWINDOWS and stash it away. Now uses %wim trick explained
>> 1044 * in the V8 manual. Ok, this method seems to work, Sparc is cool...
>> 1045 * No, it doesn't work, have to play the save/readCWP/restore trick.
>> 1046 */
>> 1047
>> 1048 wr %g0, 0x0, %wim ! so we do not get a trap
>> 1049 WRITE_PAUSE
>> 1050
>> 1051 save
>> 1052
>> 1053 rd %psr, %g3
>> 1054
>> 1055 restore
>> 1056
>> 1057 and %g3, 0x1f, %g3
>> 1058 add %g3, 0x1, %g3
>> 1059
>> 1060 mov 2, %g1
>> 1061 wr %g1, 0x0, %wim ! make window 1 invalid
>> 1062 WRITE_PAUSE
>> 1063
>> 1064 cmp %g3, 0x7
>> 1065 bne 2f
>> 1066 nop
>> 1067
>> 1068 /* Adjust our window handling routines to
>> 1069 * do things correctly on 7 window Sparcs.
>> 1070 */
>> 1071
>> 1072 #define PATCH_INSN(src, dest) \
>> 1073 set src, %g5; \
>> 1074 set dest, %g2; \
>> 1075 ld [%g5], %g4; \
>> 1076 st %g4, [%g2];
>> 1077
>> 1078 /* Patch for window spills... */
>> 1079 PATCH_INSN(spnwin_patch1_7win, spnwin_patch1)
>> 1080 PATCH_INSN(spnwin_patch2_7win, spnwin_patch2)
>> 1081 PATCH_INSN(spnwin_patch3_7win, spnwin_patch3)
>> 1082
>> 1083 /* Patch for window fills... */
>> 1084 PATCH_INSN(fnwin_patch1_7win, fnwin_patch1)
>> 1085 PATCH_INSN(fnwin_patch2_7win, fnwin_patch2)
>> 1086
>> 1087 /* Patch for trap entry setup... */
>> 1088 PATCH_INSN(tsetup_7win_patch1, tsetup_patch1)
>> 1089 PATCH_INSN(tsetup_7win_patch2, tsetup_patch2)
>> 1090 PATCH_INSN(tsetup_7win_patch3, tsetup_patch3)
>> 1091 PATCH_INSN(tsetup_7win_patch4, tsetup_patch4)
>> 1092 PATCH_INSN(tsetup_7win_patch5, tsetup_patch5)
>> 1093 PATCH_INSN(tsetup_7win_patch6, tsetup_patch6)
>> 1094
>> 1095 /* Patch for returning from traps... */
>> 1096 PATCH_INSN(rtrap_7win_patch1, rtrap_patch1)
>> 1097 PATCH_INSN(rtrap_7win_patch2, rtrap_patch2)
>> 1098 PATCH_INSN(rtrap_7win_patch3, rtrap_patch3)
>> 1099 PATCH_INSN(rtrap_7win_patch4, rtrap_patch4)
>> 1100 PATCH_INSN(rtrap_7win_patch5, rtrap_patch5)
>> 1101
>> 1102 /* Patch for killing user windows from the register file. */
>> 1103 PATCH_INSN(kuw_patch1_7win, kuw_patch1)
>> 1104
>> 1105 /* Now patch the kernel window flush sequences.
>> 1106 * This saves 2 traps on every switch and fork.
>> 1107 */
>> 1108 set 0x01000000, %g4
>> 1109 set flush_patch_one, %g5
>> 1110 st %g4, [%g5 + 0x18]
>> 1111 st %g4, [%g5 + 0x1c]
>> 1112 set flush_patch_two, %g5
>> 1113 st %g4, [%g5 + 0x18]
>> 1114 st %g4, [%g5 + 0x1c]
>> 1115 set flush_patch_three, %g5
>> 1116 st %g4, [%g5 + 0x18]
>> 1117 st %g4, [%g5 + 0x1c]
>> 1118 set flush_patch_four, %g5
>> 1119 st %g4, [%g5 + 0x18]
>> 1120 st %g4, [%g5 + 0x1c]
>> 1121 set flush_patch_exception, %g5
>> 1122 st %g4, [%g5 + 0x18]
>> 1123 st %g4, [%g5 + 0x1c]
>> 1124 set flush_patch_switch, %g5
>> 1125 st %g4, [%g5 + 0x18]
>> 1126 st %g4, [%g5 + 0x1c]
>> 1127
>> 1128 2:
>> 1129 sethi %hi( C_LABEL(nwindows) ), %g4
>> 1130 st %g3, [%g4 + %lo( C_LABEL(nwindows) )] ! store final value
>> 1131 sub %g3, 0x1, %g3
>> 1132 sethi %hi( C_LABEL(nwindowsm1) ), %g4
>> 1133 st %g3, [%g4 + %lo( C_LABEL(nwindowsm1) )]
>> 1134
>> 1135 /* Here we go, start using Linux's trap table... */
>> 1136 set C_LABEL(trapbase), %g3
>> 1137 wr %g3, 0x0, %tbr
>> 1138 WRITE_PAUSE
>> 1139
>> 1140 /* Finally, turn on traps so that we can call c-code. */
>> 1141 rd %psr, %g3
>> 1142 wr %g3, 0x0, %psr
>> 1143 WRITE_PAUSE
>> 1144
>> 1145 wr %g3, PSR_ET, %psr
>> 1146 WRITE_PAUSE
>> 1147
>> 1148 /* First we call prom_init() to set up PROMLIB, then
>> 1149 * off to start_kernel().
>> 1150 */
>> 1151
>> 1152 sethi %hi( C_LABEL(prom_vector_p) ), %g5
>> 1153 ld [%g5 + %lo( C_LABEL(prom_vector_p) )], %o0
>> 1154 call C_LABEL(prom_init)
>> 1155 nop
>> 1156
>> 1157 call C_LABEL(start_kernel)
>> 1158 nop
>> 1159
>> 1160 /* We should not get here. */
>> 1161 call halt_me
>> 1162 nop
>> 1163
>> 1164 sun4_init:
>> 1165 #ifdef CONFIG_SUN4
>> 1166 /* There, happy now Adrian? */
>> 1167 set C_LABEL(cputypval), %o2 ! Let everyone know we
>> 1168 set ' ', %o0 ! are a "sun4 " architecture
>> 1169 stb %o0, [%o2 + 0x4]
>> 1170
>> 1171 b got_prop
>> 1172 nop
>> 1173 #else
>> 1174 sethi %hi(SUN4_PROM_VECTOR+0x84), %o1
>> 1175 ld [%o1 + %lo(SUN4_PROM_VECTOR+0x84)], %o1
>> 1176 set sun4_notsup, %o0
>> 1177 call %o1 /* printf */
>> 1178 nop
>> 1179 sethi %hi(SUN4_PROM_VECTOR+0xc4), %o1
>> 1180 ld [%o1 + %lo(SUN4_PROM_VECTOR+0xc4)], %o1
>> 1181 call %o1 /* exittomon */
>> 1182 nop
>> 1183 1: ba 1b ! Cannot exit into KMON
>> 1184 nop
>> 1185 #endif
>> 1186 no_sun4e_here:
>> 1187 ld [%g7 + 0x68], %o1
>> 1188 set sun4e_notsup, %o0
>> 1189 call %o1
>> 1190 nop
>> 1191 b halt_me
>> 1192 nop
>> 1193
>> 1194 __INITDATA
>> 1195
>> 1196 sun4u_1:
>> 1197 .asciz "finddevice"
>> 1198 .align 4
>> 1199 sun4u_2:
>> 1200 .asciz "/chosen"
>> 1201 .align 4
>> 1202 sun4u_3:
>> 1203 .asciz "getprop"
>> 1204 .align 4
>> 1205 sun4u_4:
>> 1206 .asciz "stdout"
>> 1207 .align 4
>> 1208 sun4u_5:
>> 1209 .asciz "write"
>> 1210 .align 4
>> 1211 sun4u_6:
>> 1212 .asciz "\n\rOn sun4u you have to use UltraLinux (64bit) kernel\n\rand not a 32bit sun4[cdem] version\n\r\n\r"
>> 1213 sun4u_6e:
>> 1214 .align 4
>> 1215 sun4u_7:
>> 1216 .asciz "exit"
>> 1217 .align 8
>> 1218 sun4u_a1:
>> 1219 .word 0, sun4u_1, 0, 1, 0, 1, 0, sun4u_2, 0
>> 1220 sun4u_r1:
>> 1221 .word 0
>> 1222 sun4u_a2:
>> 1223 .word 0, sun4u_3, 0, 4, 0, 1, 0
>> 1224 sun4u_i2:
>> 1225 .word 0, 0, sun4u_4, 0, sun4u_1, 0, 8, 0
>> 1226 sun4u_r2:
>> 1227 .word 0
>> 1228 sun4u_a3:
>> 1229 .word 0, sun4u_5, 0, 3, 0, 1, 0
>> 1230 sun4u_i3:
>> 1231 .word 0, 0, sun4u_6, 0, sun4u_6e - sun4u_6 - 1, 0
>> 1232 sun4u_r3:
>> 1233 .word 0
>> 1234 sun4u_a4:
>> 1235 .word 0, sun4u_7, 0, 0, 0, 0
>> 1236 sun4u_r4:
>> 1237
>> 1238 __INIT
>> 1239 no_sun4u_here:
>> 1240 set sun4u_a1, %o0
>> 1241 set current_pc, %l2
>> 1242 cmp %l2, %g3
>> 1243 be 1f
>> 1244 mov %o4, %l0
>> 1245 sub %g3, %l2, %l6
>> 1246 add %o0, %l6, %o0
>> 1247 mov %o0, %l4
>> 1248 mov sun4u_r4 - sun4u_a1, %l3
>> 1249 ld [%l4], %l5
>> 1250 2:
>> 1251 add %l4, 4, %l4
>> 1252 cmp %l5, %l2
>> 1253 add %l5, %l6, %l5
>> 1254 bgeu,a 3f
>> 1255 st %l5, [%l4 - 4]
>> 1256 3:
>> 1257 subcc %l3, 4, %l3
>> 1258 bne 2b
>> 1259 ld [%l4], %l5
>> 1260 1:
>> 1261 call %l0
>> 1262 mov %o0, %l1
>> 1263
>> 1264 ld [%l1 + (sun4u_r1 - sun4u_a1)], %o1
>> 1265 add %l1, (sun4u_a2 - sun4u_a1), %o0
>> 1266 call %l0
>> 1267 st %o1, [%o0 + (sun4u_i2 - sun4u_a2)]
>> 1268
>> 1269 ld [%l1 + (sun4u_1 - sun4u_a1)], %o1
>> 1270 add %l1, (sun4u_a3 - sun4u_a1), %o0
>> 1271 call %l0
>> 1272 st %o1, [%o0 + (sun4u_i3 - sun4u_a3)]
>> 1273
>> 1274 call %l0
>> 1275 add %l1, (sun4u_a4 - sun4u_a1), %o0
>> 1276
>> 1277 /* Not reached */
>> 1278 halt_me:
>> 1279 ld [%g7 + 0x74], %o0
>> 1280 call %o0 ! Get us out of here...
>> 1281 nop ! Apparently Solaris is better.
>> 1282
>> 1283 /* Ok, now we continue in the .data/.text sections */
>> 1284
>> 1285 .data
>> 1286 .align 4
>> 1287
145 /* 1288 /*
146 * SMP slave cpus entry point. Board specific !! 1289 * Fill up the prom vector, note in particular the kind first element,
147 * function after setting up the stack and gp !! 1290 * no joke. I don't need all of them in here as the entire prom vector
>> 1291 * gets initialized in c-code so all routines can use it.
148 */ 1292 */
149 NESTED(smp_bootstrap, 16, sp) !! 1293
150 smp_slave_setup !! 1294 .globl C_LABEL(prom_vector_p)
151 setup_c0_status_sec !! 1295 C_LABEL(prom_vector_p):
152 j start_secondary !! 1296 .word 0
153 END(smp_bootstrap) !! 1297
154 #endif /* CONFIG_SMP */ !! 1298 /* We calculate the following at boot time, window fills/spills and trap entry
>> 1299 * code uses these to keep track of the register windows.
>> 1300 */
>> 1301
>> 1302 .align 4
>> 1303 .globl C_LABEL(nwindows)
>> 1304 .globl C_LABEL(nwindowsm1)
>> 1305 C_LABEL(nwindows):
>> 1306 .word 8
>> 1307 C_LABEL(nwindowsm1):
>> 1308 .word 7
>> 1309
>> 1310 /* Boot time debugger vector value. We need this later on. */
>> 1311
>> 1312 .align 4
>> 1313 .globl C_LABEL(linux_dbvec)
>> 1314 C_LABEL(linux_dbvec):
>> 1315 .word 0
>> 1316 .word 0
>> 1317
>> 1318 .align 8
>> 1319
>> 1320 .globl C_LABEL(lvl14_save)
>> 1321 C_LABEL(lvl14_save):
>> 1322 .word 0
>> 1323 .word 0
>> 1324 .word 0
>> 1325 .word 0
>> 1326 .word t_irq14
>> 1327
>> 1328 .section ".fixup",#alloc,#execinstr
>> 1329 .globl __ret_efault
>> 1330 __ret_efault:
>> 1331 ret
>> 1332 restore %g0, -EFAULT, %o0
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