 @@ -1,936 +1,936 @@
-/* $NetBSD: machdep.c,v 1.96 2014/01/11 08:07:16 tsutsui Exp $ */
+/* $NetBSD: machdep.c,v 1.97 2014/01/11 16:34:05 tsutsui Exp $ */
 /*-
  * Copyright (c) 2000 The NetBSD Foundation, Inc.
  * All rights reserved.
+ *
  * This code is derived from software contributed to The NetBSD Foundation
  * by Tohru Nishimura.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
  *    documentation and/or other materials provided with the distribution.
+ *
  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  */
 #include <sys/cdefs.h>			/* RCS ID & Copyright macro defns */
-__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.96 2014/01/11 08:07:16 tsutsui Exp $");
+__KERNEL_RCSID(0, "$NetBSD: machdep.c,v 1.97 2014/01/11 16:34:05 tsutsui Exp $");
 #include "opt_ddb.h"
 #include "opt_kgdb.h"
 #include "opt_compat_sunos.h"
 #include "opt_modular.h"
 #include "opt_panicbutton.h"
 #include "opt_m68k_arch.h"
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/kernel.h>
 #include <sys/proc.h>
 #include <sys/buf.h>
 #include <sys/reboot.h>
 #include <sys/conf.h>
 #include <sys/file.h>
 #include <sys/device.h>
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
 #include <sys/msgbuf.h>
 #include <sys/ioctl.h>
 #include <sys/tty.h>
 #include <sys/mount.h>
 #include <sys/exec.h>
 #include <sys/exec_aout.h>		/* for MID_* */
 #include <sys/core.h>
 #include <sys/kauth.h>
 #include <sys/kcore.h>
 #include <sys/vnode.h>
 #include <sys/syscallargs.h>
 #include <sys/ksyms.h>
 #include <sys/module.h>
 #ifdef	KGDB
 #include <sys/kgdb.h>
 #endif
 #include <sys/boot_flag.h>
 #define ELFSIZE 32
 #include <sys/exec_elf.h>
 #include <uvm/uvm_extern.h>
 #include <sys/sysctl.h>
 #include <machine/bootinfo.h>
 #include <machine/cpu.h>
 #include <machine/reg.h>
 #include <machine/pcb.h>
 #include <machine/psl.h>
 #include <machine/pte.h>
 #include <machine/kcore.h>	/* XXX should be pulled in by sys/kcore.h */
 #include <dev/cons.h>
 #include <dev/mm.h>
 #if defined(DDB)
 #include <machine/db_machdep.h>
 #include <ddb/db_sym.h>
 #include <ddb/db_extern.h>
 #endif
 #include "ksyms.h"
 /*
  * Info for CTL_HW
  */
 char	machine[] = MACHINE;
 char	cpu_model[120];
 /* Our exported CPU info; we can have only one. */
 struct cpu_info cpu_info_store;
 struct vm_map *phys_map = NULL;
 int	maxmem;			/* max memory per process */
 extern	u_int lowram;
 void luna68k_init(void);
 void identifycpu(void);
 void dumpsys(void);
 void straytrap(int, u_short);
 void nmihand(struct frame);
 int  cpu_dumpsize(void);
 int  cpu_dump(int (*)(dev_t, daddr_t, void *, size_t), daddr_t *);
 void cpu_init_kcore_hdr(void);
 #if NKSYMS || defined(DDB) || defined(MODULAR)
 vsize_t symtab_size(vaddr_t);
 #endif
 extern char end[];
 extern void *esym;
 /*
  * Machine-independent crash dump header info.
  */
 cpu_kcore_hdr_t cpu_kcore_hdr;
 int	machtype;	/* model: 1 for LUNA-1, 2 for LUNA-2 */
 int	sysconsole;	/* console: 0 for ttya, 1 for video */
 extern struct consdev syscons;
 extern void omfb_cnattach(void);
 extern void ws_cnattach(void);
 extern void syscnattach(int);
 /*
  * On the 68020/68030, the value of delay_divisor is roughly
  * 2048 / cpuspeed (where cpuspeed is in MHz).
+ *
  * On the 68040/68060(?), the value of delay_divisor is roughly
  * 759 / cpuspeed (where cpuspeed is in MHz).
  * XXX -- is the above formula correct?
  */
 int	cpuspeed = 25;		/* only used for printing later */
 int	delay_divisor = 30;	/* for delay() loop count */
 /*
  * Early initialization, before main() is called.
  */
 void
 luna68k_init(void)
+{
 	volatile uint8_t *pio0 = (void *)0x49000000;
 	int sw1, i;
 	char *cp;
 	extern char bootarg[64];
 	extern paddr_t avail_start, avail_end;
 	/* initialize cn_tab for early console */
 #if 1
 	cn_tab = &syscons;
 #else
 	cn_tab = &romcons;
 #endif
 	/*
 	 * Tell the VM system about available physical memory.  The
 	 * luna68k only has one segment.
 	 */
 	uvm_page_physload(atop(avail_start), atop(avail_end),
 	    atop(avail_start), atop(avail_end), VM_FREELIST_DEFAULT);
 	/*
 	 * Initialize error message buffer (at end of core).
 	 * avail_end was pre-decremented in pmap_bootstrap to compensate.
 	 */
 	for (i = 0; i < btoc(MSGBUFSIZE); i++)
 		pmap_kenter_pa((vaddr_t)msgbufaddr + i * PAGE_SIZE,
 		    avail_end + i * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, 0);
 	pmap_update(pmap_kernel());
 	initmsgbuf(msgbufaddr, m68k_round_page(MSGBUFSIZE));
 	pio0[3] = 0xb6;
 	pio0[2] = 1 << 6;		/* enable parity check */
 	pio0[3] = 0xb6;
 	sw1 = pio0[0];			/* dip sw1 value */
 	sw1 ^= 0xff;
 	sysconsole = !(sw1 & 0x2);	/* console selection */
 	/*
 	 * Check if boothowto and bootdev values are passed by our bootloader.
 	 */
 	if ((bootdev & B_MAGICMASK) == B_DEVMAGIC) {
 		/* Valid value is set; no need to parse bootarg. */
 		return;
+	}
 	/*
 	 * No valid bootdev value is set.
 	 * Assume we are booted by ROM monitor directly using a.out kernel
 	 * and we have to parse bootarg passed from the monitor to set
 	 * proper boothowto and check netboot.
 	 */
 	/* set default to "sd0a" with no howto flags */
 	bootdev = MAKEBOOTDEV(0, LUNA68K_BOOTADPT_SPC, 0, 0, 0);
 	boothowto = 0;
 	/*
 	 * 'bootarg' on LUNA has:
 	 *   "<args of x command> ENADDR=<addr> HOST=<host> SERVER=<name>"
 	 * where <addr> is MAC address of which network loader used (not
 	 * necessarily same as one at 0x4101.FFE0), <host> and <name>
 	 * are the values of HOST and SERVER environment variables.
+	 *
 	 * 'bootarg' on LUNA-II has "<args of x command>" only.
+	 *
 	 * NetBSD/luna68k cares only the first argment; any of "sda".
 	 */
 	bootarg[63] = '\0';
 	for (cp = bootarg; *cp != '\0'; cp++) {
 		if (*cp == '-') {
 			char c;
 			while ((c = *cp) != '\0' && c != ' ') {
 				BOOT_FLAG(c, boothowto);
 				cp++;
+			}
 		} else if (*cp == 'E' && memcmp("ENADDR=", cp, 7) == 0) {
 			bootdev =
 			    MAKEBOOTDEV(0, LUNA68K_BOOTADPT_LANCE, 0, 0, 0);
+		}
+	}
+}
 /*
  * Console initialization: called early on from main,
  */
 void
 consinit(void)
+{
 	if (sysconsole == 0)
 		syscnattach(0);
 	else {
 		omfb_cnattach();
 		ws_cnattach();
+	}
 #if NKSYMS || defined(DDB) || defined(MODULAR)
 	ksyms_addsyms_elf((esym != NULL) ? 1 : 0, (void *)&end, esym);
 #endif
 #ifdef DDB
 	if (boothowto & RB_KDB)
 		cpu_Debugger();
 #endif
+}
 #if NKSYMS || defined(DDB) || defined(MODULAR)
 /*
  * Check and compute size of DDB symbols and strings.
+ *
  * Note this function could be called from locore.s before MMU is turned on
  * so we should avoid global variables and function calls.
  */
 vsize_t
 symtab_size(vaddr_t hdr)
+{
 	int i;
 	Elf_Ehdr *ehdr;
 	Elf_Shdr *shp;
 	vaddr_t maxsym;
 	/*
 	 * Check the ELF headers.
 	 */
 	ehdr = (void *)hdr;
 	if (ehdr->e_ident[EI_MAG0] != ELFMAG0 ||
 	    ehdr->e_ident[EI_MAG1] != ELFMAG1 ||
 	    ehdr->e_ident[EI_MAG2] != ELFMAG2 ||
 	    ehdr->e_ident[EI_MAG3] != ELFMAG3 ||
 	    ehdr->e_ident[EI_CLASS] != ELFCLASS32) {
 		return 0;
+	}
 	/*
 	 * Find the end of the symbols and strings.
 	 */
 	maxsym = 0;
 	shp = (Elf_Shdr *)(hdr + ehdr->e_shoff);
 	for (i = 0; i < ehdr->e_shnum; i++) {
 		if (shp[i].sh_type != SHT_SYMTAB &&
 		    shp[i].sh_type != SHT_STRTAB) {
 			continue;
+		}
 		maxsym = max(maxsym, shp[i].sh_offset + shp[i].sh_size);
+	}
 	return maxsym;
+}
 #endif /* NKSYMS || defined(DDB) || defined(MODULAR) */
 /*
  * cpu_startup: allocate memory for variable-sized tables.
  */
 void
 cpu_startup(void)
+{
 	vaddr_t minaddr, maxaddr;
 	char pbuf[9];
 	extern void greeting(void);
 	if (fputype != FPU_NONE)
 		m68k_make_fpu_idle_frame();
 	/*
 	 * Initialize the kernel crash dump header.
 	 */
 	cpu_init_kcore_hdr();
 	/*
 	 * Good {morning,afternoon,evening,night}.
 	 */
 	printf("%s%s", copyright, version);
 	identifycpu();
 	format_bytes(pbuf, sizeof(pbuf), ctob(physmem));
 	printf("total memory = %s\n", pbuf);
 	minaddr = 0;
 	/*
 	 * Allocate a submap for physio
 	 */
 	phys_map = uvm_km_suballoc(kernel_map, &minaddr, &maxaddr,
 	    VM_PHYS_SIZE, 0, false, NULL);
 	format_bytes(pbuf, sizeof(pbuf), ptoa(uvmexp.free));
 	printf("avail memory = %s\n", pbuf);
 	/*
 	 * Say "Hi" to the world
 	 */
 	greeting();
+}
 void
 identifycpu(void)
+{
 	extern int cputype;
 	const char *model, *fpu;
 	memset(cpu_model, 0, sizeof(cpu_model));
 	switch (cputype) {
 	case CPU_68030:
 		model ="LUNA-I";
 		switch (fputype) {
 		case FPU_68881:
 			fpu = "MC68881";
 			break;
 		case FPU_68882:
 			fpu = "MC68882";
 			break;
 		case FPU_NONE:
 			fpu = "no";
 			break;
 		default:
 			fpu = "unknown";
 			break;
+		}
 		snprintf(cpu_model, sizeof(cpu_model),
 		    "%s (MC68030 CPU+MMU, %s FPU)", model, fpu);
 		machtype = LUNA_I;
 		/* 20MHz 68030 */
 		cpuspeed = 20;
 		delay_divisor = 102;
 		hz = 60;
 		break;
 #if defined(M68040)
 	case CPU_68040:
 		model ="LUNA-II";
 		snprintf(cpu_model, sizeof(cpu_model),
 		    "%s (MC68040 CPU+MMU+FPU, 4k on-chip physical I/D caches)",
 		    model);
 		machtype = LUNA_II;
 		/* 25MHz 68040 */
 		cpuspeed = 25;
 		delay_divisor = 30;
 		/* hz = 100 on LUNA-II */
 		break;
 #endif
 	default:
 		panic("unknown CPU type");
+	}
 	printf("%s\n", cpu_model);
+}
 /*
  * machine dependent system variables.
  */
 SYSCTL_SETUP(sysctl_machdep_setup, "sysctl machdep subtree setup")
+{
 	sysctl_createv(clog, 0, NULL, NULL,
 		       CTLFLAG_PERMANENT,
 		       CTLTYPE_NODE, "machdep", NULL,
 		       NULL, 0, NULL, 0,
 		       CTL_MACHDEP, CTL_EOL);
 	sysctl_createv(clog, 0, NULL, NULL,
 		       CTLFLAG_PERMANENT,
 		       CTLTYPE_STRUCT, "console_device", NULL,
 		       sysctl_consdev, 0, NULL, sizeof(dev_t),
 		       CTL_MACHDEP, CPU_CONSDEV, CTL_EOL);
+}
 int	waittime = -1;
 void
 cpu_reboot(int howto, char *bootstr)
+{
 	struct pcb *pcb = lwp_getpcb(curlwp);
 	extern void doboot(void);
 	/* take a snap shot before clobbering any registers */
 	if (pcb != NULL)
 		savectx(pcb);
 	/* If system is hold, just halt. */
 	if (cold) {
 		howto |= RB_HALT;
 		goto haltsys;
+	}
 	boothowto = howto;
 	if ((howto & RB_NOSYNC) == 0 && waittime < 0) {
 		waittime = 0;
 		vfs_shutdown();
 		/*
 		 * If we've been adjusting the clock, the todr
 		 * will be out of synch; adjust it now.
 		 */
 		resettodr();
+	}
 	/* Disable interrupts. */
 	splhigh();
 	/* If rebooting and a dump is requested, do it. */
 	if (howto & RB_DUMP)
 		dumpsys();
 haltsys:
 	/* Run any shutdown hooks. */
 	doshutdownhooks();
 	pmf_system_shutdown(boothowto);
 	/* Finally, halt/reboot the system. */
 	if ((howto & RB_POWERDOWN) == RB_POWERDOWN) {
 		volatile uint8_t *pio = (void *)0x4d000000;
 		printf("power is going down.\n");
 		DELAY(100000);
 		pio[3] = 0x94;
 		pio[2] = 0 << 4;
 		for (;;)
 			/* NOP */;
+	}
 	if (howto & RB_HALT) {
 		printf("System halted.	Hit any key to reboot.\n\n");
 		(void)cngetc();
+	}
 	printf("rebooting...\n");
 	DELAY(100000);
 	doboot();
 	/*NOTREACHED*/
 	for (;;)
+		;
+}
 /*
  * Initialize the kernel crash dump header.
  */
 void
 cpu_init_kcore_hdr(void)
+{
 	cpu_kcore_hdr_t *h = &cpu_kcore_hdr;
 	struct m68k_kcore_hdr *m = &h->un._m68k;
 	memset(&cpu_kcore_hdr, 0, sizeof(cpu_kcore_hdr));
 	/*
 	 * Initialize the `dispatcher' portion of the header.
 	 */
 	strcpy(h->name, machine);
 	h->page_size = PAGE_SIZE;
 	h->kernbase = KERNBASE;
 	/*
 	 * Fill in information about our MMU configuration.
 	 */
 	m->mmutype	= mmutype;
 	m->sg_v		= SG_V;
 	m->sg_frame	= SG_FRAME;
 	m->sg_ishift	= SG_ISHIFT;
 	m->sg_pmask	= SG_PMASK;
 	m->sg40_shift1	= SG4_SHIFT1;
 	m->sg40_mask2	= SG4_MASK2;
 	m->sg40_shift2	= SG4_SHIFT2;
 	m->sg40_mask3	= SG4_MASK3;
 	m->sg40_shift3	= SG4_SHIFT3;
 	m->sg40_addr1	= SG4_ADDR1;
 	m->sg40_addr2	= SG4_ADDR2;
 	m->pg_v		= PG_V;
 	m->pg_frame	= PG_FRAME;
 	/*
 	 * Initialize pointer to kernel segment table.
 	 */
 	m->sysseg_pa = (uint32_t)(pmap_kernel()->pm_stpa);
 	/*
 	 * Initialize relocation value such that:
+	 *
 	 *	pa = (va - KERNBASE) + reloc
+	 *
 	 * Since we're linked and loaded at the same place,
 	 * and the kernel is mapped va == pa, this is 0.
 	 */
 	m->reloc = 0;
 	/*
 	 * Define the end of the relocatable range.
 	 */
 	m->relocend = (uint32_t)end;
 	/*
 	 * The luna68k has one contiguous memory segment.
 	 */
 	m->ram_segs[0].start = 0 /* lowram */;
 	m->ram_segs[0].size  = ctob(physmem);
+}
 /*
  * Compute the size of the machine-dependent crash dump header.
  * Returns size in disk blocks.
  */
 #define CHDRSIZE (ALIGN(sizeof(kcore_seg_t)) + ALIGN(sizeof(cpu_kcore_hdr_t)))
 #define MDHDRSIZE roundup(CHDRSIZE, dbtob(1))
 int
 cpu_dumpsize(void)
+{
 	return btodb(MDHDRSIZE);
+}
 /*
  * Called by dumpsys() to dump the machine-dependent header.
  */
 int
 cpu_dump(int (*dump)(dev_t, daddr_t, void *, size_t), daddr_t *blknop)
+{
 	int buf[MDHDRSIZE / sizeof(int)];
 	cpu_kcore_hdr_t *chdr;
 	kcore_seg_t *kseg;
 	int error;
 	kseg = (kcore_seg_t *)buf;
 	chdr = (cpu_kcore_hdr_t *)&buf[ALIGN(sizeof(kcore_seg_t)) /
 	    sizeof(int)];
 	/* Create the segment header. */
 	CORE_SETMAGIC(*kseg, KCORE_MAGIC, MID_MACHINE, CORE_CPU);
 	kseg->c_size = MDHDRSIZE - ALIGN(sizeof(kcore_seg_t));
 	memcpy(chdr, &cpu_kcore_hdr, sizeof(cpu_kcore_hdr_t));
 	error = (*dump)(dumpdev, *blknop, (void *)buf, sizeof(buf));
 	*blknop += btodb(sizeof(buf));
 	return error;
+}
 /*
  * These variables are needed by /sbin/savecore
  */
 uint32_t dumpmag = 0x8fca0101;	/* magic number */
 int	dumpsize = 0;		/* pages */
 long	dumplo = 0;		/* blocks */
 /*
  * This is called by main to set dumplo and dumpsize.
  * Dumps always skip the first PAGE_SIZE of disk space
  * in case there might be a disk label stored there.
  * If there is extra space, put dump at the end to
  * reduce the chance that swapping trashes it.
  */
 void
 cpu_dumpconf(void)
+{
 	int chdrsize;	/* size of dump header */
 	int nblks;	/* size of dump area */
 	if (dumpdev == NODEV)
 		return;
 	nblks = bdev_size(dumpdev);
 	chdrsize = cpu_dumpsize();
 	dumpsize = btoc(cpu_kcore_hdr.un._m68k.ram_segs[0].size);
 	/*
 	 * Check do see if we will fit.  Note we always skip the
 	 * first PAGE_SIZE in case there is a disk label there.
 	 */
 	if (nblks < (ctod(dumpsize) + chdrsize + ctod(1))) {
 		dumpsize = 0;
 		dumplo = -1;
 		return;
+	}
 	/*
 	 * Put dump at the end of the partition.
 	 */
 	dumplo = (nblks - 1) - ctod(dumpsize) - chdrsize;
+}
 /*
  * Dump physical memory onto the dump device.  Called by cpu_reboot().
  */
 void
 dumpsys(void)
+{
 	const struct bdevsw *bdev;
 	daddr_t blkno;		/* current block to write */
 				/* dump routine */
 	int (*dump)(dev_t, daddr_t, void *, size_t);
 	int pg;			/* page being dumped */
 	paddr_t maddr;		/* PA being dumped */
 	int error;		/* error code from (*dump)() */
 	/* XXX initialized here because of gcc lossage */
 	maddr = 0 /* lowram */;
 	pg = 0;
 	/* Make sure dump device is valid. */
 	if (dumpdev == NODEV)
 		return;
 	bdev = bdevsw_lookup(dumpdev);
 	if (bdev == NULL)
 		return;
 	if (dumpsize == 0) {
 		cpu_dumpconf();
 		if (dumpsize == 0)
 			return;
+	}
 	if (dumplo <= 0) {
 		printf("\ndump to dev %u,%u  not possible\n",
 		    major(dumpdev), minor(dumpdev));
 		return;
+	}
 	dump = bdev->d_dump;
 	blkno = dumplo;
 	printf("\ndumping to dev %u,%u offset %ld\n",
 	    major(dumpdev), minor(dumpdev), dumplo);
 	printf("dump ");
 	/* Write the dump header. */
 	error = cpu_dump(dump, &blkno);
 	if (error)
 		goto bad;
 	for (pg = 0; pg < dumpsize; pg++) {
 #define NPGMB	(1024*1024/PAGE_SIZE)
 		/* print out how many MBs we have dumped */
 		if (pg && (pg % NPGMB) == 0)
 			printf("%d ", pg / NPGMB);
 #undef NPGMB
 		pmap_enter(pmap_kernel(), (vaddr_t)vmmap, maddr,
 		    VM_PROT_READ, VM_PROT_READ|PMAP_WIRED);
 		pmap_update(pmap_kernel());
 		error = (*dump)(dumpdev, blkno, vmmap, PAGE_SIZE);
  bad:
 		switch (error) {
 		case 0:
 			maddr += PAGE_SIZE;
 			blkno += btodb(PAGE_SIZE);
 			break;
 		case ENXIO:
 			printf("device bad\n");
 			return;
 		case EFAULT:
 			printf("device not ready\n");
 			return;
 		case EINVAL:
 			printf("area improper\n");
 			return;
 		case EIO:
 			printf("i/o error\n");
 			return;
 		case EINTR:
 			printf("aborted from console\n");
 			return;
 		default:
 			printf("error %d\n", error);
 			return;
+		}
+	}
 	printf("succeeded\n");
+}
 void
 straytrap(int pc, u_short evec)
+{
 	printf("unexpected trap (vector offset %x) from %x\n",
 	    evec & 0xFFF, pc);
+}
 int	*nofault;
 int
 badaddr(register void *addr, int nbytes)
+{
 	register int i;
 	label_t faultbuf;
 #ifdef lint
 	i = *addr; if (i) return (0);
 #endif
 	nofault = (int *)&faultbuf;
 	if (setjmp((label_t *)nofault)) {
 		nofault = (int *)0;
 		return 1;
+	}
 	switch (nbytes) {
 	case 1:
 		i = *(volatile int8_t *)addr;
 		break;
 	case 2:
 		i = *(volatile int16_t *)addr;
 		break;
 	case 4:
 		i = *(volatile int32_t *)addr;
 		break;
 	default:
 		panic("badaddr: bad request");
+	}
 	nofault = (int *)0;
 	return 0;
+}
 void luna68k_abort(const char *);
 static int innmihand;	/* simple mutex */
 /*
  * Level 7 interrupts are caused by e.g. the ABORT switch.
+ *
  * If we have DDB, then break into DDB on ABORT.  In a production
  * environment, bumping the ABORT switch would be bad, so we enable
  * panic'ing on ABORT with the kernel option "PANICBUTTON".
  */
 void
 nmihand(struct frame frame)
+{
 	/* Prevent unwanted recursion */
 	if (innmihand)
 		return;
 	innmihand = 1;
 	luna68k_abort("ABORT SWITCH");
 	innmihand = 0;
+}
 /*
  * Common code for handling ABORT signals from buttons, switches,
  * serial lines, etc.
  */
 void
 luna68k_abort(const char *cp)
+{
 #ifdef DDB
 	printf("%s\n", cp);
 	cpu_Debugger();
 #else
 #ifdef PANICBUTTON
 	panic(cp);
 #else
 	printf("%s ignored\n", cp);
 #endif /* PANICBUTTON */
 #endif /* DDB */
+}
 /*
  * cpu_exec_aout_makecmds():
  *	CPU-dependent a.out format hook for execve().
+ *
  * Determine of the given exec package refers to something which we
  * understand and, if so, set up the vmcmds for it.
  */
 int
 cpu_exec_aout_makecmds(struct lwp *l, struct exec_package *epp)
+{
 	int error = ENOEXEC;
 #ifdef COMPAT_SUNOS
 	extern sunos_exec_aout_makecmds(struct proc *, struct exec_package *);
 	if ((error = sunos_exec_aout_makecmds(l->l_proc, epp)) == 0)
 		return 0;
 #endif
 	return error;
+}
 #ifdef MODULAR
 /*
  * Push any modules loaded by the bootloader etc.
  */
 void
 module_init_md(void)
+{
+}
 #endif
 #ifdef notyet
 /*
  * romcons is useful until m68k TC register is initialized.
  */
 int  romcngetc(dev_t);
 void romcnputc(dev_t, int);
 struct consdev romcons = {
 	NULL,
 	NULL,
 	romcngetc,
 	romcnputc,
 	nullcnpollc,
 	makedev(7, 0), /* XXX */
 	CN_DEAD,
 };
 #define __		((int **)0x41000000)
 #define GETC()		(*(int (*)())__[6])()
 #define PUTC(x)		(*(void (*)())__[7])(x)
 #define ROMPUTC(x) \
 ({					\
 	register _r;			\
 	__asm volatile ("			\
 		movc	%%vbr,%0	; \
 		movel	%0,%%sp@-	; \
 		clrl	%0		; \
 		movc	%0,%%vbr"	\
 		: "=r" (_r));		\
 	PUTC(x);			\
 	__asm volatile ("			\
 		movel	%%sp@+,%0	; \
 		movc	%0,%%vbr"	\
 		: "=r" (_r));		\
 })
 #define ROMGETC() \
 ({					\
 	register _r, _c;		\
 	__asm volatile ("			\
 		movc	%%vbr,%0	; \
 		movel	%0,%%sp@-	; \
 		clrl	%0		; \
 		movc	%0,%%vbr"	\
 		: "=r" (_r));		\
 	_c = GETC();			\
 	__asm volatile ("			\
 		movel	%%sp@+,%0	; \
 		movc	%0,%%vbr"	\
 		: "=r" (_r));		\
 	_c;				\
 })
 void
 romcnputc(dev_t dev, int c)
+{
 	int s;
 	s = splhigh();
 	ROMPUTC(c);
 	splx(s);
+}
 int
 romcngetc(dev_t dev)
+{
 	int s, c;
 	do {
 		s = splhigh();
 		c = ROMGETC();
 		splx(s);
 	} while (c == -1);
 	return c;
+}
 #endif
 int
 mm_md_physacc(paddr_t pa, vm_prot_t prot)
+{
 	return (pa < lowram || pa >= 0xfffffffc) ? EFAULT : 0;
+}