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Date:      Sat, 11 Mar 2017 07:07:41 +0000 (UTC)
From:      Michal Meloun <mmel@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r315059 - in head/sys: arm/arm arm/at91 arm/include conf
Message-ID:  <201703110707.v2B77fGx098513@repo.freebsd.org>

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Author: mmel
Date: Sat Mar 11 07:07:41 2017
New Revision: 315059
URL: https://svnweb.freebsd.org/changeset/base/315059

Log:
  Split overbloated machep.c to multiple files and do basic cleanup
  of these fragments.

Added:
  head/sys/arm/arm/machdep_boot.c
     - copied, changed from r315058, head/sys/arm/arm/machdep.c
  head/sys/arm/arm/machdep_kdb.c
     - copied, changed from r315058, head/sys/arm/arm/machdep.c
  head/sys/arm/arm/machdep_ptrace.c
     - copied, changed from r315058, head/sys/arm/arm/machdep.c
Modified:
  head/sys/arm/arm/machdep.c
  head/sys/arm/at91/at91_machdep.c
  head/sys/arm/include/machdep.h
  head/sys/conf/files.arm

Modified: head/sys/arm/arm/machdep.c
==============================================================================
--- head/sys/arm/arm/machdep.c	Sat Mar 11 06:58:28 2017	(r315058)
+++ head/sys/arm/arm/machdep.c	Sat Mar 11 07:07:41 2017	(r315059)
@@ -53,129 +53,43 @@
 __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
-#include <sys/proc.h>
-#include <sys/systm.h>
-#include <sys/bio.h>
 #include <sys/buf.h>
 #include <sys/bus.h>
 #include <sys/cons.h>
 #include <sys/cpu.h>
-#include <sys/ctype.h>
 #include <sys/devmap.h>
 #include <sys/efi.h>
-#include <sys/exec.h>
 #include <sys/imgact.h>
 #include <sys/kdb.h>
 #include <sys/kernel.h>
-#include <sys/ktr.h>
 #include <sys/linker.h>
-#include <sys/lock.h>
-#include <sys/malloc.h>
 #include <sys/msgbuf.h>
-#include <sys/mutex.h>
-#include <sys/pcpu.h>
-#include <sys/ptrace.h>
-#include <sys/reboot.h>
-#if defined(LINUX_BOOT_ABI)
-#include <sys/boot.h>
-#endif
 #include <sys/rwlock.h>
 #include <sys/sched.h>
-#include <sys/signalvar.h>
 #include <sys/syscallsubr.h>
-#include <sys/sysctl.h>
 #include <sys/sysent.h>
 #include <sys/sysproto.h>
-#include <sys/uio.h>
-#include <sys/vdso.h>
 
-#include <vm/vm.h>
-#include <vm/pmap.h>
-#include <vm/vm_map.h>
 #include <vm/vm_object.h>
 #include <vm/vm_page.h>
 #include <vm/vm_pager.h>
 
-#include <machine/armreg.h>
-#include <machine/atags.h>
-#include <machine/cpu.h>
-#include <machine/cpuinfo.h>
 #include <machine/debug_monitor.h>
-#include <machine/db_machdep.h>
-#include <machine/frame.h>
-#include <machine/intr.h>
 #include <machine/machdep.h>
-#include <machine/md_var.h>
 #include <machine/metadata.h>
 #include <machine/pcb.h>
 #include <machine/physmem.h>
 #include <machine/platform.h>
-#include <machine/reg.h>
-#include <machine/trap.h>
+#include <machine/sysarch.h>
 #include <machine/undefined.h>
 #include <machine/vfp.h>
 #include <machine/vmparam.h>
-#include <machine/sysarch.h>
 
 #ifdef FDT
-#include <contrib/libfdt/libfdt.h>
 #include <dev/fdt/fdt_common.h>
-#include <dev/ofw/openfirm.h>
+#include <machine/ofw_machdep.h>
 #endif
 
-#ifdef DDB
-#include <ddb/ddb.h>
-
-#if __ARM_ARCH >= 6
-
-DB_SHOW_COMMAND(cp15, db_show_cp15)
-{
-	u_int reg;
-
-	reg = cp15_midr_get();
-	db_printf("Cpu ID: 0x%08x\n", reg);
-	reg = cp15_ctr_get();
-	db_printf("Current Cache Lvl ID: 0x%08x\n",reg);
-
-	reg = cp15_sctlr_get();
-	db_printf("Ctrl: 0x%08x\n",reg);
-	reg = cp15_actlr_get();
-	db_printf("Aux Ctrl: 0x%08x\n",reg);
-
-	reg = cp15_id_pfr0_get();
-	db_printf("Processor Feat 0: 0x%08x\n", reg);
-	reg = cp15_id_pfr1_get();
-	db_printf("Processor Feat 1: 0x%08x\n", reg);
-	reg = cp15_id_dfr0_get();
-	db_printf("Debug Feat 0: 0x%08x\n", reg);
-	reg = cp15_id_afr0_get();
-	db_printf("Auxiliary Feat 0: 0x%08x\n", reg);
-	reg = cp15_id_mmfr0_get();
-	db_printf("Memory Model Feat 0: 0x%08x\n", reg);
-	reg = cp15_id_mmfr1_get();
-	db_printf("Memory Model Feat 1: 0x%08x\n", reg);
-	reg = cp15_id_mmfr2_get();
-	db_printf("Memory Model Feat 2: 0x%08x\n", reg);
-	reg = cp15_id_mmfr3_get();
-	db_printf("Memory Model Feat 3: 0x%08x\n", reg);
-	reg = cp15_ttbr_get();
-	db_printf("TTB0: 0x%08x\n", reg);
-}
-
-DB_SHOW_COMMAND(vtop, db_show_vtop)
-{
-	u_int reg;
-
-	if (have_addr) {
-		cp15_ats1cpr_set(addr);
-		reg = cp15_par_get();
-		db_printf("Physical address reg: 0x%08x\n",reg);
-	} else
-		db_printf("show vtop <virt_addr>\n");
-}
-#endif /* __ARM_ARCH >= 6 */
-#endif /* DDB */
-
 #ifdef DEBUG
 #define	debugf(fmt, args...) printf(fmt, ##args)
 #else
@@ -204,10 +118,7 @@ int _min_bzero_size = 0;
 extern int *end;
 
 #ifdef FDT
-static char *loader_envp;
-
 vm_paddr_t pmap_pa;
-
 #if __ARM_ARCH >= 6
 vm_offset_t systempage;
 vm_offset_t irqstack;
@@ -220,64 +131,21 @@ vm_offset_t abtstack;
  * stacks etc.), uprounded to be divisible by 4.
  */
 #define KERNEL_PT_MAX	78
-
 static struct pv_addr kernel_pt_table[KERNEL_PT_MAX];
-
 struct pv_addr systempage;
 static struct pv_addr msgbufpv;
 struct pv_addr irqstack;
 struct pv_addr undstack;
 struct pv_addr abtstack;
 static struct pv_addr kernelstack;
-#endif
-#endif
-
-#if defined(LINUX_BOOT_ABI)
-#define LBABI_MAX_BANKS	10
+#endif /* __ARM_ARCH >= 6 */
+#endif /* FDT */
 
-#define CMDLINE_GUARD "FreeBSD:"
-uint32_t board_id;
-struct arm_lbabi_tag *atag_list;
-char linux_command_line[LBABI_MAX_COMMAND_LINE + 1];
-char atags[LBABI_MAX_COMMAND_LINE * 2];
-uint32_t memstart[LBABI_MAX_BANKS];
-uint32_t memsize[LBABI_MAX_BANKS];
-uint32_t membanks;
-#endif
 #ifdef MULTIDELAY
 static delay_func *delay_impl;
 static void *delay_arg;
 #endif
 
-static uint32_t board_revision;
-/* hex representation of uint64_t */
-static char board_serial[32];
-
-SYSCTL_NODE(_hw, OID_AUTO, board, CTLFLAG_RD, 0, "Board attributes");
-SYSCTL_UINT(_hw_board, OID_AUTO, revision, CTLFLAG_RD,
-    &board_revision, 0, "Board revision");
-SYSCTL_STRING(_hw_board, OID_AUTO, serial, CTLFLAG_RD,
-    board_serial, 0, "Board serial");
-
-int vfp_exists;
-SYSCTL_INT(_hw, HW_FLOATINGPT, floatingpoint, CTLFLAG_RD,
-    &vfp_exists, 0, "Floating point support enabled");
-
-void
-board_set_serial(uint64_t serial)
-{
-
-	snprintf(board_serial, sizeof(board_serial)-1,
-		    "%016jx", serial);
-}
-
-void
-board_set_revision(uint32_t revision)
-{
-
-	board_revision = revision;
-}
-
 void
 sendsig(catcher, ksi, mask)
 	sig_t catcher;
@@ -569,237 +437,6 @@ DELAY(int usec)
 }
 #endif
 
-int
-fill_regs(struct thread *td, struct reg *regs)
-{
-	struct trapframe *tf = td->td_frame;
-	bcopy(&tf->tf_r0, regs->r, sizeof(regs->r));
-	regs->r_sp = tf->tf_usr_sp;
-	regs->r_lr = tf->tf_usr_lr;
-	regs->r_pc = tf->tf_pc;
-	regs->r_cpsr = tf->tf_spsr;
-	return (0);
-}
-int
-fill_fpregs(struct thread *td, struct fpreg *regs)
-{
-	bzero(regs, sizeof(*regs));
-	return (0);
-}
-
-int
-set_regs(struct thread *td, struct reg *regs)
-{
-	struct trapframe *tf = td->td_frame;
-
-	bcopy(regs->r, &tf->tf_r0, sizeof(regs->r));
-	tf->tf_usr_sp = regs->r_sp;
-	tf->tf_usr_lr = regs->r_lr;
-	tf->tf_pc = regs->r_pc;
-	tf->tf_spsr &=  ~PSR_FLAGS;
-	tf->tf_spsr |= regs->r_cpsr & PSR_FLAGS;
-	return (0);
-}
-
-int
-set_fpregs(struct thread *td, struct fpreg *regs)
-{
-	return (0);
-}
-
-int
-fill_dbregs(struct thread *td, struct dbreg *regs)
-{
-	return (0);
-}
-int
-set_dbregs(struct thread *td, struct dbreg *regs)
-{
-	return (0);
-}
-
-
-static int
-ptrace_read_int(struct thread *td, vm_offset_t addr, uint32_t *v)
-{
-
-	if (proc_readmem(td, td->td_proc, addr, v, sizeof(*v)) != sizeof(*v))
-		return (ENOMEM);
-	return (0);
-}
-
-static int
-ptrace_write_int(struct thread *td, vm_offset_t addr, uint32_t v)
-{
-
-	if (proc_writemem(td, td->td_proc, addr, &v, sizeof(v)) != sizeof(v))
-		return (ENOMEM);
-	return (0);
-}
-
-static u_int
-ptrace_get_usr_reg(void *cookie, int reg)
-{
-	int ret;
-	struct thread *td = cookie;
-
-	KASSERT(((reg >= 0) && (reg <= ARM_REG_NUM_PC)),
-	 ("reg is outside range"));
-
-	switch(reg) {
-	case ARM_REG_NUM_PC:
-		ret = td->td_frame->tf_pc;
-		break;
-	case ARM_REG_NUM_LR:
-		ret = td->td_frame->tf_usr_lr;
-		break;
-	case ARM_REG_NUM_SP:
-		ret = td->td_frame->tf_usr_sp;
-		break;
-	default:
-		ret = *((register_t*)&td->td_frame->tf_r0 + reg);
-		break;
-	}
-
-	return (ret);
-}
-
-static u_int
-ptrace_get_usr_int(void* cookie, vm_offset_t offset, u_int* val)
-{
-	struct thread *td = cookie;
-	u_int error;
-
-	error = ptrace_read_int(td, offset, val);
-
-	return (error);
-}
-
-/**
- * This function parses current instruction opcode and decodes
- * any possible jump (change in PC) which might occur after
- * the instruction is executed.
- *
- * @param     td                Thread structure of analysed task
- * @param     cur_instr         Currently executed instruction
- * @param     alt_next_address  Pointer to the variable where
- *                              the destination address of the
- *                              jump instruction shall be stored.
- *
- * @return    <0>               when jump is possible
- *            <EINVAL>          otherwise
- */
-static int
-ptrace_get_alternative_next(struct thread *td, uint32_t cur_instr,
-    uint32_t *alt_next_address)
-{
-	int error;
-
-	if (inst_branch(cur_instr) || inst_call(cur_instr) ||
-	    inst_return(cur_instr)) {
-		error = arm_predict_branch(td, cur_instr, td->td_frame->tf_pc,
-		    alt_next_address, ptrace_get_usr_reg, ptrace_get_usr_int);
-
-		return (error);
-	}
-
-	return (EINVAL);
-}
-
-int
-ptrace_single_step(struct thread *td)
-{
-	struct proc *p;
-	int error, error_alt;
-	uint32_t cur_instr, alt_next = 0;
-
-	/* TODO: This needs to be updated for Thumb-2 */
-	if ((td->td_frame->tf_spsr & PSR_T) != 0)
-		return (EINVAL);
-
-	KASSERT(td->td_md.md_ptrace_instr == 0,
-	 ("Didn't clear single step"));
-	KASSERT(td->td_md.md_ptrace_instr_alt == 0,
-	 ("Didn't clear alternative single step"));
-	p = td->td_proc;
-	PROC_UNLOCK(p);
-
-	error = ptrace_read_int(td, td->td_frame->tf_pc,
-	    &cur_instr);
-	if (error)
-		goto out;
-
-	error = ptrace_read_int(td, td->td_frame->tf_pc + INSN_SIZE,
-	    &td->td_md.md_ptrace_instr);
-	if (error == 0) {
-		error = ptrace_write_int(td, td->td_frame->tf_pc + INSN_SIZE,
-		    PTRACE_BREAKPOINT);
-		if (error) {
-			td->td_md.md_ptrace_instr = 0;
-		} else {
-			td->td_md.md_ptrace_addr = td->td_frame->tf_pc +
-			    INSN_SIZE;
-		}
-	}
-
-	error_alt = ptrace_get_alternative_next(td, cur_instr, &alt_next);
-	if (error_alt == 0) {
-		error_alt = ptrace_read_int(td, alt_next,
-		    &td->td_md.md_ptrace_instr_alt);
-		if (error_alt) {
-			td->td_md.md_ptrace_instr_alt = 0;
-		} else {
-			error_alt = ptrace_write_int(td, alt_next,
-			    PTRACE_BREAKPOINT);
-			if (error_alt)
-				td->td_md.md_ptrace_instr_alt = 0;
-			else
-				td->td_md.md_ptrace_addr_alt = alt_next;
-		}
-	}
-
-out:
-	PROC_LOCK(p);
-	return ((error != 0) && (error_alt != 0));
-}
-
-int
-ptrace_clear_single_step(struct thread *td)
-{
-	struct proc *p;
-
-	/* TODO: This needs to be updated for Thumb-2 */
-	if ((td->td_frame->tf_spsr & PSR_T) != 0)
-		return (EINVAL);
-
-	if (td->td_md.md_ptrace_instr != 0) {
-		p = td->td_proc;
-		PROC_UNLOCK(p);
-		ptrace_write_int(td, td->td_md.md_ptrace_addr,
-		    td->td_md.md_ptrace_instr);
-		PROC_LOCK(p);
-		td->td_md.md_ptrace_instr = 0;
-	}
-
-	if (td->td_md.md_ptrace_instr_alt != 0) {
-		p = td->td_proc;
-		PROC_UNLOCK(p);
-		ptrace_write_int(td, td->td_md.md_ptrace_addr_alt,
-		    td->td_md.md_ptrace_instr_alt);
-		PROC_LOCK(p);
-		td->td_md.md_ptrace_instr_alt = 0;
-	}
-
-	return (0);
-}
-
-int
-ptrace_set_pc(struct thread *td, unsigned long addr)
-{
-	td->td_frame->tf_pc = addr;
-	return (0);
-}
-
 void
 cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t size)
 {
@@ -919,9 +556,6 @@ set_mcontext(struct thread *td, mcontext
 	return (0);
 }
 
-/*
- * MPSAFE
- */
 int
 sys_sigreturn(td, uap)
 	struct thread *td;
@@ -953,7 +587,6 @@ sys_sigreturn(td, uap)
 	return (EJUSTRETURN);
 }
 
-
 /*
  * Construct a PCB from a trapframe. This is called from kdb_trap() where
  * we want to start a backtrace from the function that caused us to enter
@@ -978,68 +611,6 @@ makectx(struct trapframe *tf, struct pcb
 	pcb->pcb_regs.sf_sp = tf->tf_usr_sp;
 }
 
-/*
- * Fake up a boot descriptor table
- */
-vm_offset_t
-fake_preload_metadata(struct arm_boot_params *abp __unused, void *dtb_ptr,
-    size_t dtb_size)
-{
-#ifdef DDB
-	vm_offset_t zstart = 0, zend = 0;
-#endif
-	vm_offset_t lastaddr;
-	int i = 0;
-	static uint32_t fake_preload[35];
-
-	fake_preload[i++] = MODINFO_NAME;
-	fake_preload[i++] = strlen("kernel") + 1;
-	strcpy((char*)&fake_preload[i++], "kernel");
-	i += 1;
-	fake_preload[i++] = MODINFO_TYPE;
-	fake_preload[i++] = strlen("elf kernel") + 1;
-	strcpy((char*)&fake_preload[i++], "elf kernel");
-	i += 2;
-	fake_preload[i++] = MODINFO_ADDR;
-	fake_preload[i++] = sizeof(vm_offset_t);
-	fake_preload[i++] = KERNVIRTADDR;
-	fake_preload[i++] = MODINFO_SIZE;
-	fake_preload[i++] = sizeof(uint32_t);
-	fake_preload[i++] = (uint32_t)&end - KERNVIRTADDR;
-#ifdef DDB
-	if (*(uint32_t *)KERNVIRTADDR == MAGIC_TRAMP_NUMBER) {
-		fake_preload[i++] = MODINFO_METADATA|MODINFOMD_SSYM;
-		fake_preload[i++] = sizeof(vm_offset_t);
-		fake_preload[i++] = *(uint32_t *)(KERNVIRTADDR + 4);
-		fake_preload[i++] = MODINFO_METADATA|MODINFOMD_ESYM;
-		fake_preload[i++] = sizeof(vm_offset_t);
-		fake_preload[i++] = *(uint32_t *)(KERNVIRTADDR + 8);
-		lastaddr = *(uint32_t *)(KERNVIRTADDR + 8);
-		zend = lastaddr;
-		zstart = *(uint32_t *)(KERNVIRTADDR + 4);
-		db_fetch_ksymtab(zstart, zend);
-	} else
-#endif
-		lastaddr = (vm_offset_t)&end;
-	if (dtb_ptr != NULL) {
-		/* Copy DTB to KVA space and insert it into module chain. */
-		lastaddr = roundup(lastaddr, sizeof(int));
-		fake_preload[i++] = MODINFO_METADATA | MODINFOMD_DTBP;
-		fake_preload[i++] = sizeof(uint32_t);
-		fake_preload[i++] = (uint32_t)lastaddr;
-		memmove((void *)lastaddr, dtb_ptr, dtb_size);
-		lastaddr += dtb_size;
-		lastaddr = roundup(lastaddr, sizeof(int));
-	}
-	fake_preload[i++] = 0;
-	fake_preload[i] = 0;
-	preload_metadata = (void *)fake_preload;
-
-	init_static_kenv(NULL, 0);
-
-	return (lastaddr);
-}
-
 void
 pcpu0_init(void)
 {
@@ -1050,208 +621,6 @@ pcpu0_init(void)
 	PCPU_SET(curthread, &thread0);
 }
 
-#if defined(LINUX_BOOT_ABI)
-
-/* Convert the U-Boot command line into FreeBSD kenv and boot options. */
-static void
-cmdline_set_env(char *cmdline, const char *guard)
-{
-	char *cmdline_next, *env;
-	size_t size, guard_len;
-	int i;
-
-	size = strlen(cmdline);
-	/* Skip leading spaces. */
-	for (; isspace(*cmdline) && (size > 0); cmdline++)
-		size--;
-
-	/* Test and remove guard. */
-	if (guard != NULL && guard[0] != '\0') {
-		guard_len  =  strlen(guard);
-		if (strncasecmp(cmdline, guard, guard_len) != 0)
-			return;
-		cmdline += guard_len;
-		size -= guard_len;
-	}
-
-	/* Skip leading spaces. */
-	for (; isspace(*cmdline) && (size > 0); cmdline++)
-		size--;
-
-	/* Replace ',' with '\0'. */
-	/* TODO: implement escaping for ',' character. */
-	cmdline_next = cmdline;
-	while(strsep(&cmdline_next, ",") != NULL)
-		;
-	init_static_kenv(cmdline, 0);
-	/* Parse boothowto. */
-	for (i = 0; howto_names[i].ev != NULL; i++) {
-		env = kern_getenv(howto_names[i].ev);
-		if (env != NULL) {
-			if (strtoul(env, NULL, 10) != 0)
-				boothowto |= howto_names[i].mask;
-			freeenv(env);
-		}
-	}
-}
-
-vm_offset_t
-linux_parse_boot_param(struct arm_boot_params *abp)
-{
-	struct arm_lbabi_tag *walker;
-	uint32_t revision;
-	uint64_t serial;
-	int size;
-	vm_offset_t lastaddr;
-#ifdef FDT
-	struct fdt_header *dtb_ptr;
-	uint32_t dtb_size;
-#endif
-
-	/*
-	 * Linux boot ABI: r0 = 0, r1 is the board type (!= 0) and r2
-	 * is atags or dtb pointer.  If all of these aren't satisfied,
-	 * then punt. Unfortunately, it looks like DT enabled kernels
-	 * doesn't uses board type and U-Boot delivers 0 in r1 for them.
-	 */
-	if (abp->abp_r0 != 0 || abp->abp_r2 == 0)
-		return (0);
-#ifdef FDT
-	/* Test if r2 point to valid DTB. */
-	dtb_ptr = (struct fdt_header *)abp->abp_r2;
-	if (fdt_check_header(dtb_ptr) == 0) {
-		dtb_size = fdt_totalsize(dtb_ptr);
-		return (fake_preload_metadata(abp, dtb_ptr, dtb_size));
-	}
-#endif
-
-	board_id = abp->abp_r1;
-	walker = (struct arm_lbabi_tag *)abp->abp_r2;
-
-	if (ATAG_TAG(walker) != ATAG_CORE)
-		return 0;
-
-	atag_list = walker;
-	while (ATAG_TAG(walker) != ATAG_NONE) {
-		switch (ATAG_TAG(walker)) {
-		case ATAG_CORE:
-			break;
-		case ATAG_MEM:
-			arm_physmem_hardware_region(walker->u.tag_mem.start,
-			    walker->u.tag_mem.size);
-			break;
-		case ATAG_INITRD2:
-			break;
-		case ATAG_SERIAL:
-			serial = walker->u.tag_sn.high;
-			serial <<= 32;
-			serial |= walker->u.tag_sn.low;
-			board_set_serial(serial);
-			break;
-		case ATAG_REVISION:
-			revision = walker->u.tag_rev.rev;
-			board_set_revision(revision);
-			break;
-		case ATAG_CMDLINE:
-			size = ATAG_SIZE(walker) -
-			    sizeof(struct arm_lbabi_header);
-			size = min(size, LBABI_MAX_COMMAND_LINE);
-			strncpy(linux_command_line, walker->u.tag_cmd.command,
-			    size);
-			linux_command_line[size] = '\0';
-			break;
-		default:
-			break;
-		}
-		walker = ATAG_NEXT(walker);
-	}
-
-	/* Save a copy for later */
-	bcopy(atag_list, atags,
-	    (char *)walker - (char *)atag_list + ATAG_SIZE(walker));
-
-	lastaddr = fake_preload_metadata(abp, NULL, 0);
-	cmdline_set_env(linux_command_line, CMDLINE_GUARD);
-	return lastaddr;
-}
-#endif
-
-#if defined(FREEBSD_BOOT_LOADER)
-vm_offset_t
-freebsd_parse_boot_param(struct arm_boot_params *abp)
-{
-	vm_offset_t lastaddr = 0;
-	void *mdp;
-	void *kmdp;
-#ifdef DDB
-	vm_offset_t ksym_start;
-	vm_offset_t ksym_end;
-#endif
-
-	/*
-	 * Mask metadata pointer: it is supposed to be on page boundary. If
-	 * the first argument (mdp) doesn't point to a valid address the
-	 * bootloader must have passed us something else than the metadata
-	 * ptr, so we give up.  Also give up if we cannot find metadta section
-	 * the loader creates that we get all this data out of.
-	 */
-
-	if ((mdp = (void *)(abp->abp_r0 & ~PAGE_MASK)) == NULL)
-		return 0;
-	preload_metadata = mdp;
-	kmdp = preload_search_by_type("elf kernel");
-	if (kmdp == NULL)
-		return 0;
-
-	boothowto = MD_FETCH(kmdp, MODINFOMD_HOWTO, int);
-	loader_envp = MD_FETCH(kmdp, MODINFOMD_ENVP, char *);
-	init_static_kenv(loader_envp, 0);
-	lastaddr = MD_FETCH(kmdp, MODINFOMD_KERNEND, vm_offset_t);
-#ifdef DDB
-	ksym_start = MD_FETCH(kmdp, MODINFOMD_SSYM, uintptr_t);
-	ksym_end = MD_FETCH(kmdp, MODINFOMD_ESYM, uintptr_t);
-	db_fetch_ksymtab(ksym_start, ksym_end);
-#endif
-	return lastaddr;
-}
-#endif
-
-vm_offset_t
-default_parse_boot_param(struct arm_boot_params *abp)
-{
-	vm_offset_t lastaddr;
-
-#if defined(LINUX_BOOT_ABI)
-	if ((lastaddr = linux_parse_boot_param(abp)) != 0)
-		return lastaddr;
-#endif
-#if defined(FREEBSD_BOOT_LOADER)
-	if ((lastaddr = freebsd_parse_boot_param(abp)) != 0)
-		return lastaddr;
-#endif
-	/* Fall back to hardcoded metadata. */
-	lastaddr = fake_preload_metadata(abp, NULL, 0);
-
-	return lastaddr;
-}
-
-/*
- * Stub version of the boot parameter parsing routine.  We are
- * called early in initarm, before even VM has been initialized.
- * This routine needs to preserve any data that the boot loader
- * has passed in before the kernel starts to grow past the end
- * of the BSS, traditionally the place boot-loaders put this data.
- *
- * Since this is called so early, things that depend on the vm system
- * being setup (including access to some SoC's serial ports), about
- * all that can be done in this routine is to copy the arguments.
- *
- * This is the default boot parameter parsing routine.  Individual
- * kernels/boards can override this weak function with one of their
- * own.  We just fake metadata...
- */
-__weak_reference(default_parse_boot_param, parse_boot_param);
-
 /*
  * Initialize proc0
  */
@@ -1269,111 +638,6 @@ init_proc0(vm_offset_t kstack)
 	pcpup->pc_curpcb = thread0.td_pcb;
 }
 
-int
-arm_predict_branch(void *cookie, u_int insn, register_t pc, register_t *new_pc,
-    u_int (*fetch_reg)(void*, int), u_int (*read_int)(void*, vm_offset_t, u_int*))
-{
-	u_int addr, nregs, offset = 0;
-	int error = 0;
-
-	switch ((insn >> 24) & 0xf) {
-	case 0x2:	/* add pc, reg1, #value */
-	case 0x0:	/* add pc, reg1, reg2, lsl #offset */
-		addr = fetch_reg(cookie, (insn >> 16) & 0xf);
-		if (((insn >> 16) & 0xf) == 15)
-			addr += 8;
-		if (insn & 0x0200000) {
-			offset = (insn >> 7) & 0x1e;
-			offset = (insn & 0xff) << (32 - offset) |
-			    (insn & 0xff) >> offset;
-		} else {
-
-			offset = fetch_reg(cookie, insn & 0x0f);
-			if ((insn & 0x0000ff0) != 0x00000000) {
-				if (insn & 0x10)
-					nregs = fetch_reg(cookie,
-					    (insn >> 8) & 0xf);
-				else
-					nregs = (insn >> 7) & 0x1f;
-				switch ((insn >> 5) & 3) {
-				case 0:
-					/* lsl */
-					offset = offset << nregs;
-					break;
-				case 1:
-					/* lsr */
-					offset = offset >> nregs;
-					break;
-				default:
-					break; /* XXX */
-				}
-
-			}
-			*new_pc = addr + offset;
-			return (0);
-
-		}
-
-	case 0xa:	/* b ... */
-	case 0xb:	/* bl ... */
-		addr = ((insn << 2) & 0x03ffffff);
-		if (addr & 0x02000000)
-			addr |= 0xfc000000;
-		*new_pc = (pc + 8 + addr);
-		return (0);
-	case 0x7:	/* ldr pc, [pc, reg, lsl #2] */
-		addr = fetch_reg(cookie, insn & 0xf);
-		addr = pc + 8 + (addr << 2);
-		error = read_int(cookie, addr, &addr);
-		*new_pc = addr;
-		return (error);
-	case 0x1:	/* mov pc, reg */
-		*new_pc = fetch_reg(cookie, insn & 0xf);
-		return (0);
-	case 0x4:
-	case 0x5:	/* ldr pc, [reg] */
-		addr = fetch_reg(cookie, (insn >> 16) & 0xf);
-		/* ldr pc, [reg, #offset] */
-		if (insn & (1 << 24))
-			offset = insn & 0xfff;
-		if (insn & 0x00800000)
-			addr += offset;
-		else
-			addr -= offset;
-		error = read_int(cookie, addr, &addr);
-		*new_pc = addr;
-
-		return (error);
-	case 0x8:	/* ldmxx reg, {..., pc} */
-	case 0x9:
-		addr = fetch_reg(cookie, (insn >> 16) & 0xf);
-		nregs = (insn  & 0x5555) + ((insn  >> 1) & 0x5555);
-		nregs = (nregs & 0x3333) + ((nregs >> 2) & 0x3333);
-		nregs = (nregs + (nregs >> 4)) & 0x0f0f;
-		nregs = (nregs + (nregs >> 8)) & 0x001f;
-		switch ((insn >> 23) & 0x3) {
-		case 0x0:	/* ldmda */
-			addr = addr - 0;
-			break;
-		case 0x1:	/* ldmia */
-			addr = addr + 0 + ((nregs - 1) << 2);
-			break;
-		case 0x2:	/* ldmdb */
-			addr = addr - 4;
-			break;
-		case 0x3:	/* ldmib */
-			addr = addr + 4 + ((nregs - 1) << 2);
-			break;
-		}
-		error = read_int(cookie, addr, &addr);
-		*new_pc = addr;
-
-		return (error);
-	default:
-		return (EINVAL);
-	}
-}
-
 #if __ARM_ARCH >= 6
 void
 set_stackptrs(int cpu)
@@ -1400,146 +664,8 @@ set_stackptrs(int cpu)
 }
 #endif
 
-#ifdef EFI
-static void
-add_efi_map_entries(struct efi_map_header *efihdr, struct mem_region *mr,
-    int *mrcnt)
-{
-	struct efi_md *map, *p;
-	const char *type;
-	size_t efisz, memory_size;
-	int ndesc, i, j;
-
-	static const char *types[] = {
-		"Reserved",
-		"LoaderCode",
-		"LoaderData",
-		"BootServicesCode",
-		"BootServicesData",
-		"RuntimeServicesCode",
-		"RuntimeServicesData",
-		"ConventionalMemory",
-		"UnusableMemory",
-		"ACPIReclaimMemory",
-		"ACPIMemoryNVS",
-		"MemoryMappedIO",
-		"MemoryMappedIOPortSpace",
-		"PalCode",
-		"PersistentMemory"
-	};
-
-	*mrcnt = 0;
-
-	/*
-	 * Memory map data provided by UEFI via the GetMemoryMap
-	 * Boot Services API.
-	 */
-	efisz = roundup2(sizeof(struct efi_map_header), 0x10);
-	map = (struct efi_md *)((uint8_t *)efihdr + efisz);
-
-	if (efihdr->descriptor_size == 0)
-		return;
-	ndesc = efihdr->memory_size / efihdr->descriptor_size;
-
-	if (boothowto & RB_VERBOSE)
-		printf("%23s %12s %12s %8s %4s\n",
-		    "Type", "Physical", "Virtual", "#Pages", "Attr");
-
-	memory_size = 0;
-	for (i = 0, j = 0, p = map; i < ndesc; i++,
-	    p = efi_next_descriptor(p, efihdr->descriptor_size)) {
-		if (boothowto & RB_VERBOSE) {
-			if (p->md_type < nitems(types))
-				type = types[p->md_type];
-			else
-				type = "<INVALID>";
-			printf("%23s %012llx %12p %08llx ", type, p->md_phys,
-			    p->md_virt, p->md_pages);
-			if (p->md_attr & EFI_MD_ATTR_UC)
-				printf("UC ");
-			if (p->md_attr & EFI_MD_ATTR_WC)
-				printf("WC ");
-			if (p->md_attr & EFI_MD_ATTR_WT)
-				printf("WT ");
-			if (p->md_attr & EFI_MD_ATTR_WB)
-				printf("WB ");
-			if (p->md_attr & EFI_MD_ATTR_UCE)
-				printf("UCE ");
-			if (p->md_attr & EFI_MD_ATTR_WP)
-				printf("WP ");
-			if (p->md_attr & EFI_MD_ATTR_RP)
-				printf("RP ");
-			if (p->md_attr & EFI_MD_ATTR_XP)
-				printf("XP ");
-			if (p->md_attr & EFI_MD_ATTR_NV)
-				printf("NV ");
-			if (p->md_attr & EFI_MD_ATTR_MORE_RELIABLE)
-				printf("MORE_RELIABLE ");
-			if (p->md_attr & EFI_MD_ATTR_RO)
-				printf("RO ");
-			if (p->md_attr & EFI_MD_ATTR_RT)
-				printf("RUNTIME");
-			printf("\n");
-		}
-
-		switch (p->md_type) {
-		case EFI_MD_TYPE_CODE:
-		case EFI_MD_TYPE_DATA:
-		case EFI_MD_TYPE_BS_CODE:
-		case EFI_MD_TYPE_BS_DATA:
-		case EFI_MD_TYPE_FREE:
-			/*
-			 * We're allowed to use any entry with these types.
-			 */
-			break;
-		default:
-			continue;
-		}
-
-		j++;
-		if (j >= FDT_MEM_REGIONS)
-			break;
-
-		mr[j].mr_start = p->md_phys;
-		mr[j].mr_size = p->md_pages * PAGE_SIZE;
-		memory_size += mr[j].mr_size;
-	}
-
-	*mrcnt = j;
-}
-#endif /* EFI */
 
 #ifdef FDT
-static char *
-kenv_next(char *cp)
-{
-
-	if (cp != NULL) {
-		while (*cp != 0)
-			cp++;
-		cp++;
-		if (*cp == 0)
-			cp = NULL;
-	}
-	return (cp);
-}
-
-static void
-print_kenv(void)
-{
-	char *cp;
-
-	debugf("loader passed (static) kenv:\n");
-	if (loader_envp == NULL) {
-		debugf(" no env, null ptr\n");
-		return;
-	}
-	debugf(" loader_envp = 0x%08x\n", (uint32_t)loader_envp);
-
-	for (cp = loader_envp; cp != NULL; cp = kenv_next(cp))
-		debugf(" %x %s\n", (uint32_t)cp, cp);

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***



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