sparc: prepare kernel/ for unification

o sparc32 files with identical names to sparc64 renamed to <name>_32.S
o introduced a few Kconfig helpers to simplify Makefile logic
o refactored Makefile to prepare for unification
  - use obj-$(CONFIG_SPARC32) for sparc32 specific files
  - use <name>_$(BITS) for files where sparc64 has a _64 variant
  - sparc64 directly include a few files where sparc32 builds them,
    refer to these files directly (no BITS)
  - sneaked in -Werror as used by sparc64
o modified sparc/Makefile to use the new names for head/init_task

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1295 insertions, 0 deletions

diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
new file mode 100644
index 00000000000..51b40426f9c
--- /dev/null
+++ b/arch/sparc/kernel/head_32.S
@@ -0,0 +1,1295 @@
+/*
+ * head.S: The initial boot code for the Sparc port of Linux.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1995,1999 Pete Zaitcev   (zaitcev@yahoo.com)
+ * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
+ * Copyright (C) 1997 Jakub Jelinek   (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997 Michael A. Griffith (grif@acm.org)
+ *
+ * CompactPCI platform by Eric Brower, 1999.
+ */
+
+#include <linux/version.h>
+#include <linux/init.h>
+
+#include <asm/head.h>
+#include <asm/asi.h>
+#include <asm/contregs.h>
+#include <asm/ptrace.h>
+#include <asm/psr.h>
+#include <asm/page.h>
+#include <asm/kdebug.h>
+#include <asm/winmacro.h>
+#include <asm/thread_info.h>    /* TI_UWINMASK */
+#include <asm/errno.h>
+#include <asm/pgtsrmmu.h>       /* SRMMU_PGDIR_SHIFT */
+
+        .data
+/* 
+ * The following are used with the prom_vector node-ops to figure out
+ * the cpu-type 
+ */
+
+        .align 4
+cputyp:
+        .word   1
+
+        .align 4
+        .globl cputypval
+cputypval:
+        .asciz "sun4c"
+        .ascii "     "
+
+cputypvalend:
+cputypvallen = cputypvar - cputypval
+
+        .align 4
+/*
+ * Sun people can't spell worth damn. "compatability" indeed.
+ * At least we *know* we can't spell, and use a spell-checker.
+ */
+
+/* Uh, actually Linus it is I who cannot spell. Too much murky
+ * Sparc assembly will do this to ya.
+ */
+cputypvar:
+        .asciz "compatability"
+
+/* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */
+        .align 4
+cputypvar_sun4m:
+        .asciz "compatible"
+
+        .align 4
+
+sun4_notsup:
+        .asciz  "Sparc-Linux sun4 support does no longer exist.\n\n"
+        .align 4
+
+sun4e_notsup:
+        .asciz  "Sparc-Linux sun4e support does not exist\n\n"
+        .align 4
+
+        /* The Sparc trap table, bootloader gives us control at _start. */
+        .section .text.head,"ax"
+        .globl  start, _stext, _start, __stext
+        .globl  trapbase
+_start:   /* danger danger */
+__stext:
+_stext:
+start:
+trapbase:
+#ifdef CONFIG_SMP
+trapbase_cpu0:
+#endif
+/* We get control passed to us here at t_zero. */
+t_zero: b gokernel; nop; nop; nop;
+t_tflt: SPARC_TFAULT                        /* Inst. Access Exception        */
+t_bins: TRAP_ENTRY(0x2, bad_instruction)    /* Illegal Instruction           */
+t_pins: TRAP_ENTRY(0x3, priv_instruction)   /* Privileged Instruction        */
+t_fpd:  TRAP_ENTRY(0x4, fpd_trap_handler)   /* Floating Point Disabled       */
+t_wovf: WINDOW_SPILL                        /* Window Overflow               */
+t_wunf: WINDOW_FILL                         /* Window Underflow              */
+t_mna:  TRAP_ENTRY(0x7, mna_handler)        /* Memory Address Not Aligned    */
+t_fpe:  TRAP_ENTRY(0x8, fpe_trap_handler)   /* Floating Point Exception      */
+t_dflt: SPARC_DFAULT                        /* Data Miss Exception           */
+t_tio:  TRAP_ENTRY(0xa, do_tag_overflow)    /* Tagged Instruction Ovrflw     */
+t_wpt:  TRAP_ENTRY(0xb, do_watchpoint)      /* Watchpoint Detected           */
+t_badc: BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10)
+t_irq1: TRAP_ENTRY_INTERRUPT(1)             /* IRQ Software/SBUS Level 1     */
+t_irq2: TRAP_ENTRY_INTERRUPT(2)             /* IRQ SBUS Level 2              */
+t_irq3: TRAP_ENTRY_INTERRUPT(3)             /* IRQ SCSI/DMA/SBUS Level 3     */
+t_irq4: TRAP_ENTRY_INTERRUPT(4)             /* IRQ Software Level 4          */
+t_irq5: TRAP_ENTRY_INTERRUPT(5)             /* IRQ SBUS/Ethernet Level 5     */
+t_irq6: TRAP_ENTRY_INTERRUPT(6)             /* IRQ Software Level 6          */
+t_irq7: TRAP_ENTRY_INTERRUPT(7)             /* IRQ Video/SBUS Level 5        */
+t_irq8: TRAP_ENTRY_INTERRUPT(8)             /* IRQ SBUS Level 6              */
+t_irq9: TRAP_ENTRY_INTERRUPT(9)             /* IRQ SBUS Level 7              */
+t_irq10:TRAP_ENTRY_INTERRUPT(10)            /* IRQ Timer #1 (one we use)     */
+t_irq11:TRAP_ENTRY_INTERRUPT(11)            /* IRQ Floppy Intr.              */
+t_irq12:TRAP_ENTRY_INTERRUPT(12)            /* IRQ Zilog serial chip         */
+t_irq13:TRAP_ENTRY_INTERRUPT(13)            /* IRQ Audio Intr.               */
+t_irq14:TRAP_ENTRY_INTERRUPT(14)            /* IRQ Timer #2                  */
+        .globl  t_nmi
+#ifndef CONFIG_SMP
+t_nmi:  NMI_TRAP                            /* Level 15 (NMI)                */
+#else
+t_nmi:  TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m)
+#endif
+t_racc: TRAP_ENTRY(0x20, do_reg_access)     /* General Register Access Error */
+t_iacce:BAD_TRAP(0x21)                      /* Instr Access Error            */
+t_bad22:BAD_TRAP(0x22) BAD_TRAP(0x23)
+t_cpdis:TRAP_ENTRY(0x24, do_cp_disabled)    /* Co-Processor Disabled         */
+t_uflsh:SKIP_TRAP(0x25, unimp_flush)        /* Unimplemented FLUSH inst.     */
+t_bad26:BAD_TRAP(0x26) BAD_TRAP(0x27)
+t_cpexc:TRAP_ENTRY(0x28, do_cp_exception)   /* Co-Processor Exception        */
+t_dacce:SPARC_DFAULT                        /* Data Access Error             */
+t_hwdz: TRAP_ENTRY(0x2a, do_hw_divzero)     /* Division by zero, you lose... */
+t_dserr:BAD_TRAP(0x2b)                      /* Data Store Error              */
+t_daccm:BAD_TRAP(0x2c)                      /* Data Access MMU-Miss          */
+t_bad2d:BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31)
+t_bad32:BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36)
+t_bad37:BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b)
+t_iaccm:BAD_TRAP(0x3c)                      /* Instr Access MMU-Miss         */
+t_bad3d:BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) BAD_TRAP(0x41)
+t_bad42:BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) BAD_TRAP(0x46)
+t_bad47:BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) BAD_TRAP(0x4b)
+t_bad4c:BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) BAD_TRAP(0x50)
+t_bad51:BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55)
+t_bad56:BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a)
+t_bad5b:BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f)
+t_bad60:BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64)
+t_bad65:BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69)
+t_bad6a:BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e)
+t_bad6f:BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73)
+t_bad74:BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78)
+t_bad79:BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d)
+t_bad7e:BAD_TRAP(0x7e) BAD_TRAP(0x7f)
+t_bad80:BAD_TRAP(0x80)                      /* SunOS System Call             */
+t_sbkpt:BREAKPOINT_TRAP                     /* Software Breakpoint/KGDB      */
+t_divz: TRAP_ENTRY(0x82, do_hw_divzero)     /* Divide by zero trap           */
+t_flwin:TRAP_ENTRY(0x83, do_flush_windows)  /* Flush Windows Trap            */
+t_clwin:BAD_TRAP(0x84)                      /* Clean Windows Trap            */
+t_rchk: BAD_TRAP(0x85)                      /* Range Check                   */
+t_funal:BAD_TRAP(0x86)                      /* Fix Unaligned Access Trap     */
+t_iovf: BAD_TRAP(0x87)                      /* Integer Overflow Trap         */
+t_bad88:BAD_TRAP(0x88)                      /* Slowaris System Call          */
+t_bad89:BAD_TRAP(0x89)                      /* Net-B.S. System Call          */
+t_bad8a:BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) BAD_TRAP(0x8d) BAD_TRAP(0x8e)
+t_bad8f:BAD_TRAP(0x8f)
+t_linux:LINUX_SYSCALL_TRAP                  /* Linux System Call             */
+t_bad91:BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) BAD_TRAP(0x95)
+t_bad96:BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) BAD_TRAP(0x9a)
+t_bad9b:BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) BAD_TRAP(0x9f)
+t_getcc:GETCC_TRAP                          /* Get Condition Codes           */
+t_setcc:SETCC_TRAP                          /* Set Condition Codes           */
+t_getpsr:GETPSR_TRAP                        /* Get PSR Register              */
+t_bada3:BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6)
+t_bada7:BAD_TRAP(0xa7)
+t_bada8:BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab)
+t_badac:BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0)
+t_badb1:BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5)
+t_badb6:BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba)
+t_badbb:BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf)
+t_badc0:BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4)
+t_badc5:BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9)
+t_badca:BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce)
+t_badcf:BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3)
+t_badd4:BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8)
+t_badd9:BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd)
+t_badde:BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2)
+t_bade3:BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7)
+t_bade8:BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec)
+t_baded:BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1)
+t_badf2:BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6)
+t_badf7:BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb)
+t_badfc:BAD_TRAP(0xfc)
+t_kgdb: KGDB_TRAP(0xfd)
+dbtrap: BAD_TRAP(0xfe)                      /* Debugger/PROM breakpoint #1   */
+dbtrap2:BAD_TRAP(0xff)                      /* Debugger/PROM breakpoint #2   */ 
+
+        .globl  end_traptable
+end_traptable:
+
+#ifdef CONFIG_SMP
+        /* Trap tables for the other cpus. */
+        .globl  trapbase_cpu1, trapbase_cpu2, trapbase_cpu3
+trapbase_cpu1:
+        BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction)
+        TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler)
+        WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler)
+        TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT
+        TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint)
+        BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10)
+        TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2)
+        TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4)
+        TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6)
+        TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8)
+        TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10)
+        TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12)
+        TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14)
+        TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m)
+        TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22)
+        BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush)
+        BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception)
+        SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c)
+        BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31)
+        BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36)
+        BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b)
+        BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40)
+        BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45)
+        BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a)
+        BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f)
+        BAD_TRAP(0x50)
+        BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55)
+        BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a)
+        BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f)
+        BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64)
+        BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69)
+        BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e)
+        BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73)
+        BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78)
+        BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d)
+        BAD_TRAP(0x7e) BAD_TRAP(0x7f)
+        BAD_TRAP(0x80)
+        BREAKPOINT_TRAP
+        TRAP_ENTRY(0x82, do_hw_divzero)
+        TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85)
+        BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88)
+        BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c)
+        BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f)
+        LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94)
+        BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99)
+        BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e)
+        BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP
+        BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6)
+        BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab)
+        BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0)
+        BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5)
+        BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba)
+        BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf)
+        BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4)
+        BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9)
+        BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce)
+        BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3)
+        BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8)
+        BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd)
+        BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2)
+        BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7)
+        BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec)
+        BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1)
+        BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6)
+        BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb)
+        BAD_TRAP(0xfc) KGDB_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff)
+
+trapbase_cpu2:
+        BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction)
+        TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler)
+        WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler)
+        TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT
+        TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint)
+        BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10)
+        TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2)
+        TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4)
+        TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6)
+        TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8)
+        TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10)
+        TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12)
+        TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14)
+        TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m)
+        TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22)
+        BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush)
+        BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception)
+        SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c)
+        BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31)
+        BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36)
+        BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b)
+        BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40)
+        BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45)
+        BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a)
+        BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f)
+        BAD_TRAP(0x50)
+        BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55)
+        BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a)
+        BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f)
+        BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64)
+        BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69)
+        BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e)
+        BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73)
+        BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78)
+        BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d)
+        BAD_TRAP(0x7e) BAD_TRAP(0x7f)
+        BAD_TRAP(0x80)
+        BREAKPOINT_TRAP
+        TRAP_ENTRY(0x82, do_hw_divzero)
+        TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85)
+        BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88)
+        BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c)
+        BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f)
+        LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94)
+        BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99)
+        BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e)
+        BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP
+        BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6)
+        BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab)
+        BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0)
+        BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5)
+        BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba)
+        BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf)
+        BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4)
+        BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9)
+        BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce)
+        BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3)
+        BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8)
+        BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd)
+        BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2)
+        BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7)
+        BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec)
+        BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1)
+        BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6)
+        BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb)
+        BAD_TRAP(0xfc) KGDB_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff)
+
+trapbase_cpu3:
+        BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction)
+        TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler)
+        WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler)
+        TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT
+        TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint)
+        BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10)
+        TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2)
+        TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4)
+        TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6)
+        TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8)
+        TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10)
+        TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12)
+        TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14)
+        TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m)
+        TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22)
+        BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush)
+        BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception)
+        SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c)
+        BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31)
+        BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36)
+        BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b)
+        BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40)
+        BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45)
+        BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a)
+        BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f)
+        BAD_TRAP(0x50)
+        BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55)
+        BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a)
+        BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f)
+        BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64)
+        BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69)
+        BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e)
+        BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73)
+        BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78)
+        BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d)
+        BAD_TRAP(0x7e) BAD_TRAP(0x7f)
+        BAD_TRAP(0x80)
+        BREAKPOINT_TRAP
+        TRAP_ENTRY(0x82, do_hw_divzero)
+        TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85)
+        BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88)
+        BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c)
+        BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f)
+        LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94)
+        BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99)
+        BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e)
+        BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP
+        BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6)
+        BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab)
+        BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0)
+        BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5)
+        BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba)
+        BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf)
+        BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4)
+        BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9)
+        BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce)
+        BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3)
+        BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8)
+        BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd)
+        BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2)
+        BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7)
+        BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec)
+        BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1)
+        BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6)
+        BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb)
+        BAD_TRAP(0xfc) KGDB_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff)
+
+#endif
+        .align PAGE_SIZE
+
+/* This was the only reasonable way I could think of to properly align
+ * these page-table data structures.
+ */
+        .globl pg0, pg1, pg2, pg3
+        .globl empty_bad_page
+        .globl empty_bad_page_table
+        .globl empty_zero_page
+        .globl swapper_pg_dir
+swapper_pg_dir:         .skip PAGE_SIZE
+pg0:                    .skip PAGE_SIZE
+pg1:                    .skip PAGE_SIZE
+pg2:                    .skip PAGE_SIZE
+pg3:                    .skip PAGE_SIZE
+empty_bad_page:         .skip PAGE_SIZE
+empty_bad_page_table:   .skip PAGE_SIZE
+empty_zero_page:        .skip PAGE_SIZE
+
+        .global root_flags
+        .global ram_flags
+        .global root_dev
+        .global sparc_ramdisk_image
+        .global sparc_ramdisk_size
+
+/* This stuff has to be in sync with SILO and other potential boot loaders
+ * Fields should be kept upward compatible and whenever any change is made,
+ * HdrS version should be incremented.
+ */
+        .ascii  "HdrS"
+        .word   LINUX_VERSION_CODE
+        .half   0x0203          /* HdrS version */
+root_flags:
+        .half   1
+root_dev:
+        .half   0
+ram_flags:
+        .half   0
+sparc_ramdisk_image:
+        .word   0
+sparc_ramdisk_size:
+        .word   0
+        .word   reboot_command
+        .word   0, 0, 0
+        .word   _end
+
+/* Cool, here we go. Pick up the romvec pointer in %o0 and stash it in
+ * %g7 and at prom_vector_p. And also quickly check whether we are on
+ * a v0, v2, or v3 prom.
+ */
+gokernel:
+                /* Ok, it's nice to know, as early as possible, if we
+                 * are already mapped where we expect to be in virtual
+                 * memory.  The Solaris /boot elf format bootloader
+                 * will peek into our elf header and load us where
+                 * we want to be, otherwise we have to re-map.
+                 *
+                 * Some boot loaders don't place the jmp'rs address
+                 * in %o7, so we do a pc-relative call to a local
+                 * label, then see what %o7 has.
+                 */
+
+                mov     %o7, %g4                ! Save %o7
+
+                /* Jump to it, and pray... */
+current_pc:
+                call    1f
+                 nop
+
+1:
+                mov     %o7, %g3
+
+                tst     %o0
+                be      no_sun4u_here
+                 mov    %g4, %o7                /* Previous %o7. */
+        
+                mov     %o0, %l0                ! stash away romvec
+                mov     %o0, %g7                ! put it here too
+                mov     %o1, %l1                ! stash away debug_vec too
+
+                /* Ok, let's check out our run time program counter. */
+                set     current_pc, %g5
+                cmp     %g3, %g5
+                be      already_mapped
+                 nop 
+
+                /* %l6 will hold the offset we have to subtract
+                 * from absolute symbols in order to access areas
+                 * in our own image.  If already mapped this is
+                 * just plain zero, else it is KERNBASE.
+                 */
+                set     KERNBASE, %l6
+                b       copy_prom_lvl14
+                 nop
+
+already_mapped:
+                mov     0, %l6
+
+                /* Copy over the Prom's level 14 clock handler. */
+copy_prom_lvl14:
+#if 1
+                /* DJHR
+                 * preserve our linked/calculated instructions
+                 */
+                set     lvl14_save, %g1
+                set     t_irq14, %g3
+                sub     %g1, %l6, %g1           ! translate to physical
+                sub     %g3, %l6, %g3           ! translate to physical
+                ldd     [%g3], %g4
+                std     %g4, [%g1]
+                ldd     [%g3+8], %g4
+                std     %g4, [%g1+8]
+#endif
+                rd      %tbr, %g1
+                andn    %g1, 0xfff, %g1         ! proms trap table base
+                or      %g0, (0x1e<<4), %g2     ! offset to lvl14 intr
+                or      %g1, %g2, %g2
+                set     t_irq14, %g3
+                sub     %g3, %l6, %g3
+                ldd     [%g2], %g4
+                std     %g4, [%g3]
+                ldd     [%g2 + 0x8], %g4
+                std     %g4, [%g3 + 0x8]        ! Copy proms handler
+
+/* Must determine whether we are on a sun4c MMU, SRMMU, or SUN4/400 MUTANT
+ * MMU so we can remap ourselves properly.  DON'T TOUCH %l0 thru %l5 in these
+ * remapping routines, we need their values afterwards!
+ */
+                /* Now check whether we are already mapped, if we
+                 * are we can skip all this garbage coming up.
+                 */
+copy_prom_done:
+                cmp     %l6, 0
+                be      go_to_highmem           ! this will be a nop then
+                 nop
+
+                set     LOAD_ADDR, %g6
+                cmp     %g7, %g6
+                bne     remap_not_a_sun4        ! This is not a Sun4
+                 nop
+
+                or      %g0, 0x1, %g1
+                lduba   [%g1] ASI_CONTROL, %g1  ! Only safe to try on Sun4.
+                subcc   %g1, 0x24, %g0          ! Is this a mutant Sun4/400???
+                be      sun4_mutant_remap       ! Ugh, it is...
+                 nop
+
+                b       sun4_normal_remap       ! regular sun4, 2 level mmu
+                 nop
+
+remap_not_a_sun4:
+                lda     [%g0] ASI_M_MMUREGS, %g1 ! same as ASI_PTE on sun4c
+                and     %g1, 0x1, %g1           ! Test SRMMU Enable bit ;-)
+                cmp     %g1, 0x0
+                be      sun4c_remap             ! A sun4c MMU or normal Sun4
+                 nop
+srmmu_remap:
+                /* First, check for a viking (TI) module. */
+                set     0x40000000, %g2
+                rd      %psr, %g3
+                and     %g2, %g3, %g3
+                subcc   %g3, 0x0, %g0
+                bz      srmmu_nviking
+                 nop
+
+                /* Figure out what kind of viking we are on.
+                 * We need to know if we have to play with the
+                 * AC bit and disable traps or not.
+                 */
+
+                /* I've only seen MicroSparc's on SparcClassics with this
+                 * bit set.
+                 */
+                set     0x800, %g2
+                lda     [%g0] ASI_M_MMUREGS, %g3        ! peek in the control reg
+                and     %g2, %g3, %g3
+                subcc   %g3, 0x0, %g0
+                bnz     srmmu_nviking                   ! is in mbus mode
+                 nop
+                
+                rd      %psr, %g3                       ! DO NOT TOUCH %g3
+                andn    %g3, PSR_ET, %g2
+                wr      %g2, 0x0, %psr
+                WRITE_PAUSE
+                
+                /* Get context table pointer, then convert to
+                 * a physical address, which is 36 bits.
+                 */
+                set     AC_M_CTPR, %g4
+                lda     [%g4] ASI_M_MMUREGS, %g4
+                sll     %g4, 0x4, %g4                   ! We use this below
+                                                        ! DO NOT TOUCH %g4
+
+                /* Set the AC bit in the Viking's MMU control reg. */
+                lda     [%g0] ASI_M_MMUREGS, %g5        ! DO NOT TOUCH %g5
+                set     0x8000, %g6                     ! AC bit mask
+                or      %g5, %g6, %g6                   ! Or it in...
+                sta     %g6, [%g0] ASI_M_MMUREGS        ! Close your eyes...
+
+                /* Grrr, why does it seem like every other load/store
+                 * on the sun4m is in some ASI space...
+                 * Fine with me, let's get the pointer to the level 1
+                 * page table directory and fetch its entry.
+                 */
+                lda     [%g4] ASI_M_BYPASS, %o1         ! This is a level 1 ptr
+                srl     %o1, 0x4, %o1                   ! Clear low 4 bits
+                sll     %o1, 0x8, %o1                   ! Make physical
+                
+                /* Ok, pull in the PTD. */
+                lda     [%o1] ASI_M_BYPASS, %o2         ! This is the 0x0 16MB pgd
+
+                /* Calculate to KERNBASE entry. */
+                add     %o1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %o3           
+
+                /* Poke the entry into the calculated address. */
+                sta     %o2, [%o3] ASI_M_BYPASS
+
+                /* I don't get it Sun, if you engineered all these
+                 * boot loaders and the PROM (thank you for the debugging
+                 * features btw) why did you not have them load kernel
+                 * images up in high address space, since this is necessary
+                 * for ABI compliance anyways?  Does this low-mapping provide
+                 * enhanced interoperability?
+                 *
+                 * "The PROM is the computer."
+                 */
+
+                /* Ok, restore the MMU control register we saved in %g5 */
+                sta     %g5, [%g0] ASI_M_MMUREGS        ! POW... ouch
+
+                /* Turn traps back on.  We saved it in %g3 earlier. */
+                wr      %g3, 0x0, %psr                  ! tick tock, tick tock
+
+                /* Now we burn precious CPU cycles due to bad engineering. */
+                WRITE_PAUSE
+
+                /* Wow, all that just to move a 32-bit value from one
+                 * place to another...  Jump to high memory.
+                 */
+                b       go_to_highmem
+                 nop
+
+                /* This works on viking's in Mbus mode and all
+                 * other MBUS modules.  It is virtually the same as
+                 * the above madness sans turning traps off and flipping
+                 * the AC bit.
+                 */
+srmmu_nviking:
+                set     AC_M_CTPR, %g1
+                lda     [%g1] ASI_M_MMUREGS, %g1        ! get ctx table ptr
+                sll     %g1, 0x4, %g1                   ! make physical addr
+                lda     [%g1] ASI_M_BYPASS, %g1         ! ptr to level 1 pg_table
+                srl     %g1, 0x4, %g1
+                sll     %g1, 0x8, %g1                   ! make phys addr for l1 tbl
+
+                lda     [%g1] ASI_M_BYPASS, %g2         ! get level1 entry for 0x0
+                add     %g1, KERNBASE >> (SRMMU_PGDIR_SHIFT - 2), %g3
+                sta     %g2, [%g3] ASI_M_BYPASS         ! place at KERNBASE entry
+                b       go_to_highmem
+                 nop                                    ! wheee....
+
+                /* This remaps the kernel on Sun4/4xx machines
+                 * that have the Sun Mutant Three Level MMU.
+                 * It's like a platypus, Sun didn't have the
+                 * SRMMU in conception so they kludged the three
+                 * level logic in the regular Sun4 MMU probably.
+                 *
+                 * Basically, you take each entry in the top level
+                 * directory that maps the low 3MB starting at
+                 * address zero and put the mapping in the KERNBASE
+                 * slots.  These top level pgd's are called regmaps.
+                 */
+sun4_mutant_remap:
+                or      %g0, %g0, %g3           ! source base
+                sethi   %hi(KERNBASE), %g4      ! destination base
+                or      %g4, %lo(KERNBASE), %g4
+                sethi   %hi(0x300000), %g5
+                or      %g5, %lo(0x300000), %g5 ! upper bound 3MB
+                or      %g0, 0x1, %l6
+                sll     %l6, 24, %l6            ! Regmap mapping size
+                add     %g3, 0x2, %g3           ! Base magic
+                add     %g4, 0x2, %g4           ! Base magic
+
+                /* Main remapping loop on Sun4-Mutant-MMU.
+                 * "I am not an animal..." -Famous Mutant Person
+                 */
+sun4_mutant_loop:
+                lduha   [%g3] ASI_REGMAP, %g2   ! Get lower entry
+                stha    %g2, [%g4] ASI_REGMAP   ! Store in high entry
+                add     %g4, %l6, %g4           ! Move up high memory ptr
+                subcc   %g3, %g5, %g0           ! Reached our limit?
+                blu     sun4_mutant_loop        ! Nope, loop again
+                 add    %g3, %l6, %g3           ! delay, Move up low ptr
+                b       go_to_highmem           ! Jump to high memory.
+                 nop
+
+                /* The following is for non-4/4xx sun4 MMU's. */
+sun4_normal_remap:
+                mov     0, %g3                  ! source base
+                set     KERNBASE, %g4           ! destination base
+                set     0x300000, %g5           ! upper bound 3MB
+                mov     1, %l6
+                sll     %l6, 18, %l6            ! sun4 mmu segmap size
+sun4_normal_loop:
+                lduha   [%g3] ASI_SEGMAP, %g6   ! load phys_seg
+                stha    %g6, [%g4] ASI_SEGMAP   ! stort new virt mapping
+                add     %g3, %l6, %g3           ! increment source pointer
+                subcc   %g3, %g5, %g0           ! reached limit?
+                blu     sun4_normal_loop        ! nope, loop again
+                 add    %g4, %l6, %g4           ! delay, increment dest ptr
+                b       go_to_highmem
+                 nop
+
+                /* The following works for Sun4c MMU's */
+sun4c_remap:
+                mov     0, %g3                  ! source base
+                set     KERNBASE, %g4           ! destination base
+                set     0x300000, %g5           ! upper bound 3MB
+                mov     1, %l6
+                sll     %l6, 18, %l6            ! sun4c mmu segmap size
+sun4c_remap_loop:
+                lda     [%g3] ASI_SEGMAP, %g6   ! load phys_seg
+                sta     %g6, [%g4] ASI_SEGMAP   ! store new virt mapping
+                add     %g3, %l6, %g3           ! Increment source ptr
+                subcc   %g3, %g5, %g0           ! Reached limit?
+                bl      sun4c_remap_loop        ! Nope, loop again
+                 add    %g4, %l6, %g4           ! delay, Increment dest ptr
+
+/* Now do a non-relative jump so that PC is in high-memory */
+go_to_highmem:
+                set     execute_in_high_mem, %g1
+                jmpl    %g1, %g0
+                 nop
+
+/* The code above should be at beginning and we have to take care about
+ * short jumps, as branching to .text.init section from .text is usually
+ * impossible */
+                __INIT
+/* Acquire boot time privileged register values, this will help debugging.
+ * I figure out and store nwindows and nwindowsm1 later on.
+ */
+execute_in_high_mem:
+                mov     %l0, %o0                ! put back romvec
+                mov     %l1, %o1                ! and debug_vec
+
+                sethi   %hi(prom_vector_p), %g1
+                st      %o0, [%g1 + %lo(prom_vector_p)]
+
+                sethi   %hi(linux_dbvec), %g1
+                st      %o1, [%g1 + %lo(linux_dbvec)]
+
+                ld      [%o0 + 0x4], %o3
+                and     %o3, 0x3, %o5                   ! get the version
+
+                cmp     %o3, 0x2                        ! a v2 prom?
+                be      found_version
+                 nop
+
+                /* paul@sfe.com.au */
+                cmp     %o3, 0x3                        ! a v3 prom?
+                be      found_version
+                 nop
+
+/* Old sun4's pass our load address into %o0 instead of the prom
+ * pointer. On sun4's you have to hard code the romvec pointer into
+ * your code. Sun probably still does that because they don't even
+ * trust their own "OpenBoot" specifications.
+ */
+                set     LOAD_ADDR, %g6
+                cmp     %o0, %g6                ! an old sun4?
+                be      sun4_init
+                 nop
+
+found_version:
+/* Get the machine type via the mysterious romvec node operations. */
+
+                add     %g7, 0x1c, %l1          
+                ld      [%l1], %l0
+                ld      [%l0], %l0
+                call    %l0
+                 or     %g0, %g0, %o0           ! next_node(0) = first_node
+                or      %o0, %g0, %g6
+
+                sethi   %hi(cputypvar), %o1     ! First node has cpu-arch
+                or      %o1, %lo(cputypvar), %o1
+                sethi   %hi(cputypval), %o2     ! information, the string
+                or      %o2, %lo(cputypval), %o2
+                ld      [%l1], %l0              ! 'compatibility' tells
+                ld      [%l0 + 0xc], %l0        ! that we want 'sun4x' where
+                call    %l0                     ! x is one of '', 'c', 'm',
+                 nop                            ! 'd' or 'e'. %o2 holds pointer
+                                                ! to a buf where above string
+                                                ! will get stored by the prom.
+
+                subcc   %o0, %g0, %g0
+                bpos    got_prop                ! Got the property
+                 nop
+
+                or      %g6, %g0, %o0
+                sethi   %hi(cputypvar_sun4m), %o1
+                or      %o1, %lo(cputypvar_sun4m), %o1
+                sethi   %hi(cputypval), %o2
+                or      %o2, %lo(cputypval), %o2
+                ld      [%l1], %l0
+                ld      [%l0 + 0xc], %l0
+                call    %l0
+                 nop
+
+got_prop:
+                set     cputypval, %o2
+                ldub    [%o2 + 0x4], %l1
+
+                cmp     %l1, ' '
+                be      1f
+                 cmp    %l1, 'c'
+                be      1f
+                 cmp    %l1, 'm'
+                be      1f
+                 cmp    %l1, 's'
+                be      1f
+                 cmp    %l1, 'd'
+                be      1f
+                 cmp    %l1, 'e'
+                be      no_sun4e_here           ! Could be a sun4e.
+                 nop
+                b       no_sun4u_here           ! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :))
+                 nop
+
+1:              set     cputypval, %l1
+                ldub    [%l1 + 0x4], %l1
+                cmp     %l1, 'm'                ! Test for sun4d, sun4e ?
+                be      sun4m_init
+                 cmp    %l1, 's'                ! Treat sun4s as sun4m
+                be      sun4m_init
+                 cmp    %l1, 'd'                ! Let us see how the beast will die
+                be      sun4d_init
+                 nop
+
+                /* Jump into mmu context zero. */
+                set     AC_CONTEXT, %g1
+                stba    %g0, [%g1] ASI_CONTROL
+
+                b       sun4c_continue_boot
+                 nop
+
+/* CPUID in bootbus can be found at PA 0xff0140000 */
+#define SUN4D_BOOTBUS_CPUID     0xf0140000
+
+sun4d_init:
+        /* Need to patch call to handler_irq */
+        set     patch_handler_irq, %g4
+        set     sun4d_handler_irq, %g5
+        sethi   %hi(0x40000000), %g3            ! call
+        sub     %g5, %g4, %g5
+        srl     %g5, 2, %g5
+        or      %g5, %g3, %g5
+        st      %g5, [%g4]
+
+#ifdef CONFIG_SMP
+        /* Get our CPU id out of bootbus */
+        set     SUN4D_BOOTBUS_CPUID, %g3
+        lduba   [%g3] ASI_M_CTL, %g3
+        and     %g3, 0xf8, %g3
+        srl     %g3, 3, %g4
+        sta     %g4, [%g0] ASI_M_VIKING_TMP1
+        sethi   %hi(boot_cpu_id), %g5
+        stb     %g4, [%g5 + %lo(boot_cpu_id)]
+        sll     %g4, 2, %g4
+        sethi   %hi(boot_cpu_id4), %g5
+        stb     %g4, [%g5 + %lo(boot_cpu_id4)]
+#endif
+
+        /* Fall through to sun4m_init */
+
+sun4m_init:
+        /* XXX Fucking Cypress... */
+        lda     [%g0] ASI_M_MMUREGS, %g5
+        srl     %g5, 28, %g4
+
+        cmp     %g4, 1
+        bne     1f
+         srl    %g5, 24, %g4
+
+        and     %g4, 0xf, %g4
+        cmp     %g4, 7          /* This would be a HyperSparc. */
+
+        bne     2f
+         nop
+
+1:
+
+#define PATCH_IT(dst, src)      \
+        set     (dst), %g5;     \
+        set     (src), %g4;     \
+        ld      [%g4], %g3;     \
+        st      %g3, [%g5];     \
+        ld      [%g4+0x4], %g3; \
+        st      %g3, [%g5+0x4];
+
+        /* Signed multiply. */
+        PATCH_IT(.mul, .mul_patch)
+        PATCH_IT(.mul+0x08, .mul_patch+0x08)
+
+        /* Signed remainder. */
+        PATCH_IT(.rem, .rem_patch)
+        PATCH_IT(.rem+0x08, .rem_patch+0x08)
+        PATCH_IT(.rem+0x10, .rem_patch+0x10)
+        PATCH_IT(.rem+0x18, .rem_patch+0x18)
+        PATCH_IT(.rem+0x20, .rem_patch+0x20)
+        PATCH_IT(.rem+0x28, .rem_patch+0x28)
+
+        /* Signed division. */
+        PATCH_IT(.div, .div_patch)
+        PATCH_IT(.div+0x08, .div_patch+0x08)
+        PATCH_IT(.div+0x10, .div_patch+0x10)
+        PATCH_IT(.div+0x18, .div_patch+0x18)
+        PATCH_IT(.div+0x20, .div_patch+0x20)
+
+        /* Unsigned multiply. */
+        PATCH_IT(.umul, .umul_patch)
+        PATCH_IT(.umul+0x08, .umul_patch+0x08)
+
+        /* Unsigned remainder. */
+        PATCH_IT(.urem, .urem_patch)
+        PATCH_IT(.urem+0x08, .urem_patch+0x08)
+        PATCH_IT(.urem+0x10, .urem_patch+0x10)
+        PATCH_IT(.urem+0x18, .urem_patch+0x18)
+
+        /* Unsigned division. */
+        PATCH_IT(.udiv, .udiv_patch)
+        PATCH_IT(.udiv+0x08, .udiv_patch+0x08)
+        PATCH_IT(.udiv+0x10, .udiv_patch+0x10)
+
+#undef PATCH_IT
+
+/* Ok, the PROM could have done funny things and apple cider could still
+ * be sitting in the fault status/address registers.  Read them all to
+ * clear them so we don't get magic faults later on.
+ */
+/* This sucks, apparently this makes Vikings call prom panic, will fix later */
+2:
+                rd      %psr, %o1
+                srl     %o1, 28, %o1            ! Get a type of the CPU
+
+                subcc   %o1, 4, %g0             ! TI: Viking or MicroSPARC
+                be      sun4c_continue_boot
+                 nop
+
+                set     AC_M_SFSR, %o0
+                lda     [%o0] ASI_M_MMUREGS, %g0
+                set     AC_M_SFAR, %o0
+                lda     [%o0] ASI_M_MMUREGS, %g0
+
+                /* Fujitsu MicroSPARC-II has no asynchronous flavors of FARs */
+                subcc   %o1, 0, %g0
+                be      sun4c_continue_boot
+                 nop
+
+                set     AC_M_AFSR, %o0
+                lda     [%o0] ASI_M_MMUREGS, %g0
+                set     AC_M_AFAR, %o0
+                lda     [%o0] ASI_M_MMUREGS, %g0
+                 nop
+
+
+sun4c_continue_boot:
+
+
+/* Aieee, now set PC and nPC, enable traps, give ourselves a stack and it's
+ * show-time!
+ */
+
+                sethi   %hi(cputyp), %o0
+                st      %g4, [%o0 + %lo(cputyp)]
+
+                /* Turn on Supervisor, EnableFloating, and all the PIL bits.
+                 * Also puts us in register window zero with traps off.
+                 */
+                set     (PSR_PS | PSR_S | PSR_PIL | PSR_EF), %g2
+                wr      %g2, 0x0, %psr
+                WRITE_PAUSE
+
+                /* I want a kernel stack NOW! */
+                set     init_thread_union, %g1
+                set     (THREAD_SIZE - STACKFRAME_SZ), %g2
+                add     %g1, %g2, %sp
+                mov     0, %fp                  /* And for good luck */
+
+                /* Zero out our BSS section. */
+                set     __bss_start , %o0       ! First address of BSS
+                set     end , %o1               ! Last address of BSS
+                add     %o0, 0x1, %o0
+1:      
+                stb     %g0, [%o0]
+                subcc   %o0, %o1, %g0
+                bl      1b
+                 add    %o0, 0x1, %o0
+
+                /* Initialize the uwinmask value for init task just in case.
+                 * But first make current_set[boot_cpu_id] point to something useful.
+                 */
+                set     init_thread_union, %g6
+                set     current_set, %g2
+#ifdef CONFIG_SMP
+                sethi   %hi(boot_cpu_id4), %g3
+                ldub    [%g3 + %lo(boot_cpu_id4)], %g3
+                st      %g6, [%g2]
+                add     %g2, %g3, %g2
+#endif
+                st      %g6, [%g2]
+
+                st      %g0, [%g6 + TI_UWINMASK]
+
+/* Compute NWINDOWS and stash it away. Now uses %wim trick explained
+ * in the V8 manual. Ok, this method seems to work, Sparc is cool...
+ * No, it doesn't work, have to play the save/readCWP/restore trick.
+ */
+
+                wr      %g0, 0x0, %wim                  ! so we do not get a trap
+                WRITE_PAUSE
+
+                save
+
+                rd      %psr, %g3
+
+                restore
+
+                and     %g3, 0x1f, %g3
+                add     %g3, 0x1, %g3
+
+                mov     2, %g1
+                wr      %g1, 0x0, %wim                  ! make window 1 invalid
+                WRITE_PAUSE
+
+                cmp     %g3, 0x7
+                bne     2f
+                 nop
+
+                /* Adjust our window handling routines to
+                 * do things correctly on 7 window Sparcs.
+                 */
+
+#define         PATCH_INSN(src, dest) \
+                set     src, %g5; \
+                set     dest, %g2; \
+                ld      [%g5], %g4; \
+                st      %g4, [%g2];
+        
+                /* Patch for window spills... */
+                PATCH_INSN(spnwin_patch1_7win, spnwin_patch1)
+                PATCH_INSN(spnwin_patch2_7win, spnwin_patch2)
+                PATCH_INSN(spnwin_patch3_7win, spnwin_patch3)
+
+                /* Patch for window fills... */
+                PATCH_INSN(fnwin_patch1_7win, fnwin_patch1)
+                PATCH_INSN(fnwin_patch2_7win, fnwin_patch2)
+
+                /* Patch for trap entry setup... */
+                PATCH_INSN(tsetup_7win_patch1, tsetup_patch1)
+                PATCH_INSN(tsetup_7win_patch2, tsetup_patch2)
+                PATCH_INSN(tsetup_7win_patch3, tsetup_patch3)
+                PATCH_INSN(tsetup_7win_patch4, tsetup_patch4)
+                PATCH_INSN(tsetup_7win_patch5, tsetup_patch5)
+                PATCH_INSN(tsetup_7win_patch6, tsetup_patch6)
+
+                /* Patch for returning from traps... */
+                PATCH_INSN(rtrap_7win_patch1, rtrap_patch1)
+                PATCH_INSN(rtrap_7win_patch2, rtrap_patch2)
+                PATCH_INSN(rtrap_7win_patch3, rtrap_patch3)
+                PATCH_INSN(rtrap_7win_patch4, rtrap_patch4)
+                PATCH_INSN(rtrap_7win_patch5, rtrap_patch5)
+
+                /* Patch for killing user windows from the register file. */
+                PATCH_INSN(kuw_patch1_7win, kuw_patch1)
+
+                /* Now patch the kernel window flush sequences.
+                 * This saves 2 traps on every switch and fork.
+                 */
+                set     0x01000000, %g4
+                set     flush_patch_one, %g5
+                st      %g4, [%g5 + 0x18]
+                st      %g4, [%g5 + 0x1c]
+                set     flush_patch_two, %g5
+                st      %g4, [%g5 + 0x18]
+                st      %g4, [%g5 + 0x1c]
+                set     flush_patch_three, %g5
+                st      %g4, [%g5 + 0x18]
+                st      %g4, [%g5 + 0x1c]
+                set     flush_patch_four, %g5
+                st      %g4, [%g5 + 0x18]
+                st      %g4, [%g5 + 0x1c]
+                set     flush_patch_exception, %g5
+                st      %g4, [%g5 + 0x18]
+                st      %g4, [%g5 + 0x1c]
+                set     flush_patch_switch, %g5
+                st      %g4, [%g5 + 0x18]
+                st      %g4, [%g5 + 0x1c]
+
+2:              
+                sethi   %hi(nwindows), %g4
+                st      %g3, [%g4 + %lo(nwindows)]      ! store final value
+                sub     %g3, 0x1, %g3
+                sethi   %hi(nwindowsm1), %g4
+                st      %g3, [%g4 + %lo(nwindowsm1)]
+
+                /* Here we go, start using Linux's trap table... */
+                set     trapbase, %g3
+                wr      %g3, 0x0, %tbr
+                WRITE_PAUSE
+
+                /* Finally, turn on traps so that we can call c-code. */
+                rd      %psr, %g3
+                wr      %g3, 0x0, %psr
+                WRITE_PAUSE
+
+                wr      %g3, PSR_ET, %psr
+                WRITE_PAUSE
+
+                /* First we call prom_init() to set up PROMLIB, then
+                 * off to start_kernel().
+                 */
+
+                sethi   %hi(prom_vector_p), %g5
+                ld      [%g5 + %lo(prom_vector_p)], %o0
+                call    prom_init
+                 nop
+
+                call    start_kernel
+                 nop
+        
+                /* We should not get here. */
+                call    halt_me
+                 nop
+
+sun4_init:
+                sethi   %hi(SUN4_PROM_VECTOR+0x84), %o1
+                ld      [%o1 + %lo(SUN4_PROM_VECTOR+0x84)], %o1
+                set     sun4_notsup, %o0
+                call    %o1     /* printf */
+                 nop
+                sethi   %hi(SUN4_PROM_VECTOR+0xc4), %o1
+                ld      [%o1 + %lo(SUN4_PROM_VECTOR+0xc4)], %o1
+                call    %o1     /* exittomon */
+                 nop
+1:              ba      1b                      ! Cannot exit into KMON
+                 nop
+
+no_sun4e_here:
+                ld      [%g7 + 0x68], %o1
+                set     sun4e_notsup, %o0
+                call    %o1
+                 nop
+                b       halt_me
+                 nop
+
+                __INITDATA
+
+sun4u_1:
+                .asciz "finddevice"
+                .align  4
+sun4u_2:
+                .asciz "/chosen"
+                .align  4
+sun4u_3:
+                .asciz "getprop"
+                .align  4
+sun4u_4:
+                .asciz "stdout"
+                .align  4
+sun4u_5:
+                .asciz "write"
+                .align  4
+sun4u_6:
+                .asciz  "\n\rOn sun4u you have to use UltraLinux (64bit) kernel\n\rand not a 32bit sun4[cdem] version\n\r\n\r"
+sun4u_6e:
+                .align  4
+sun4u_7:
+                .asciz "exit"
+                .align  8
+sun4u_a1:
+                .word   0, sun4u_1, 0, 1, 0, 1, 0, sun4u_2, 0
+sun4u_r1:
+                .word   0
+sun4u_a2:
+                .word   0, sun4u_3, 0, 4, 0, 1, 0
+sun4u_i2:
+                .word   0, 0, sun4u_4, 0, sun4u_1, 0, 8, 0
+sun4u_r2:
+                .word   0
+sun4u_a3:
+                .word   0, sun4u_5, 0, 3, 0, 1, 0
+sun4u_i3:
+                .word   0, 0, sun4u_6, 0, sun4u_6e - sun4u_6 - 1, 0
+sun4u_r3:
+                .word   0
+sun4u_a4:
+                .word   0, sun4u_7, 0, 0, 0, 0
+sun4u_r4:
+
+                __INIT
+no_sun4u_here:
+                set     sun4u_a1, %o0
+                set     current_pc, %l2
+                cmp     %l2, %g3
+                be      1f
+                 mov    %o4, %l0
+                sub     %g3, %l2, %l6
+                add     %o0, %l6, %o0
+                mov     %o0, %l4
+                mov     sun4u_r4 - sun4u_a1, %l3
+                ld      [%l4], %l5
+2:
+                add     %l4, 4, %l4
+                cmp     %l5, %l2
+                add     %l5, %l6, %l5
+                bgeu,a  3f
+                 st     %l5, [%l4 - 4]
+3:
+                subcc   %l3, 4, %l3
+                bne     2b
+                 ld     [%l4], %l5
+1:
+                call    %l0
+                 mov    %o0, %l1
+
+                ld      [%l1 + (sun4u_r1 - sun4u_a1)], %o1
+                add     %l1, (sun4u_a2 - sun4u_a1), %o0
+                call    %l0
+                 st     %o1, [%o0 + (sun4u_i2 - sun4u_a2)]
+
+                ld      [%l1 + (sun4u_1 - sun4u_a1)], %o1
+                add     %l1, (sun4u_a3 - sun4u_a1), %o0
+                call    %l0
+                st      %o1, [%o0 + (sun4u_i3 - sun4u_a3)]
+
+                call    %l0
+                 add    %l1, (sun4u_a4 - sun4u_a1), %o0
+
+                /* Not reached */
+halt_me:
+                ld      [%g7 + 0x74], %o0
+                call    %o0                     ! Get us out of here...
+                 nop                            ! Apparently Solaris is better.
+
+/* Ok, now we continue in the .data/.text sections */
+
+        .data
+        .align 4
+
+/*
+ * Fill up the prom vector, note in particular the kind first element,
+ * no joke. I don't need all of them in here as the entire prom vector
+ * gets initialized in c-code so all routines can use it.
+ */
+
+prom_vector_p:
+                .word 0
+
+/* We calculate the following at boot time, window fills/spills and trap entry
+ * code uses these to keep track of the register windows.
+ */
+
+        .align 4
+        .globl  nwindows
+        .globl  nwindowsm1
+nwindows:
+        .word   8
+nwindowsm1:
+        .word   7
+
+/* Boot time debugger vector value.  We need this later on. */
+
+        .align 4
+        .globl  linux_dbvec
+linux_dbvec:
+        .word   0
+        .word   0
+
+        .align 8
+
+        .globl  lvl14_save
+lvl14_save:
+        .word   0
+        .word   0
+        .word   0
+        .word   0
+        .word   t_irq14
+
+        .section        ".fixup",#alloc,#execinstr
+        .globl  __ret_efault
+__ret_efault:
+        ret
+         restore %g0, -EFAULT, %o0