MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141

pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040

stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage:
From: merge <null@invalid>
MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch

mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage:
From: Andy Green <andy@openmoko.com>
fix-stray-endmenu.patch

Signed-off-by: Andy Green <andy@openmoko.com>

10 files changed, 462 insertions, 181 deletions

diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug
index 524e33819f3..ff80e86b9bd 100644
--- a/arch/mn10300/Kconfig.debug
+++ b/arch/mn10300/Kconfig.debug
@@ -15,6 +15,15 @@ config DEBUG_DECOMPRESS_KERNEL
 	  decompressing Linux seeing "Uncompressing Linux... " and
 	  "Ok, booting the kernel.\n" on console.
 
+config TEST_MISALIGNMENT_HANDLER
+	bool "Run tests on the misalignment handler"
+	depends on DEBUG_KERNEL
+	default n
+	help
+	  If you say Y here the kernel will execute a list of misaligned memory
+	  accesses to make sure the misalignment handler deals them with
+	  correctly.  If it does not, the kernel will throw a BUG.
+
 config KPROBES
 	bool "Kprobes"
 	depends on DEBUG_KERNEL
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index b7cbb1487af..ceeaaaa359e 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -180,6 +180,7 @@ ENTRY(resume_userspace)
 
 #ifdef CONFIG_PREEMPT
 ENTRY(resume_kernel)
+	__cli
 	mov	(TI_preempt_count,a2),d0	# non-zero preempt_count ?
 	cmp	0,d0
 	bne	restore_all
@@ -190,7 +191,7 @@ need_resched:
 	mov	(REG_EPSW,fp),d0
 	and	EPSW_IM,d0
 	cmp	EPSW_IM_7,d0		# interrupts off (exception path) ?
-	beq	restore_all
+	bne	restore_all
 	call	preempt_schedule_irq[],0
 	jmp	need_resched
 #endif
@@ -477,7 +478,7 @@ ENTRY(sys_call_table)
 	.long sys_uselib
 	.long sys_swapon
 	.long sys_reboot
-	.long old_readdir
+	.long sys_old_readdir
 	.long old_mmap		/* 90 */
 	.long sys_munmap
 	.long sys_truncate
diff --git a/arch/mn10300/kernel/gdb-io-serial.c b/arch/mn10300/kernel/gdb-io-serial.c
index 9a6d4e8ebe7..11584c51acd 100644
--- a/arch/mn10300/kernel/gdb-io-serial.c
+++ b/arch/mn10300/kernel/gdb-io-serial.c
@@ -99,6 +99,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
  try_again:
 	/* pull chars out of the buffer */
 	ix = gdbstub_rx_outp;
+	barrier();
 	if (ix == gdbstub_rx_inp) {
 		if (nonblock)
 			return -EAGAIN;
@@ -110,6 +111,7 @@ int gdbstub_io_rx_char(unsigned char *_ch, int nonblock)
 
 	ch = gdbstub_rx_buffer[ix++];
 	st = gdbstub_rx_buffer[ix++];
+	barrier();
 	gdbstub_rx_outp = ix & 0x00000fff;
 
 	if (st & UART_LSR_BI) {
diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c
index 54be6afb555..0ea7482c152 100644
--- a/arch/mn10300/kernel/gdb-stub.c
+++ b/arch/mn10300/kernel/gdb-stub.c
@@ -522,17 +522,7 @@ static int gdbstub_single_step(struct pt_regs *regs)
 	} else {
 		switch (cur) {
 			/* Bxx (d8,PC) */
-		case 0xc0:
-		case 0xc1:
-		case 0xc2:
-		case 0xc3:
-		case 0xc4:
-		case 0xc5:
-		case 0xc6:
-		case 0xc7:
-		case 0xc8:
-		case 0xc9:
-		case 0xca:
+		case 0xc0 ... 0xca:
 			if (gdbstub_read_byte(pc + 1, (u8 *) &x) < 0)
 				goto fault;
 			if (!__gdbstub_mark_bp(pc + 2, 0))
@@ -543,17 +533,7 @@ static int gdbstub_single_step(struct pt_regs *regs)
 			break;
 
 			/* LXX (d8,PC) */
-		case 0xd0:
-		case 0xd1:
-		case 0xd2:
-		case 0xd3:
-		case 0xd4:
-		case 0xd5:
-		case 0xd6:
-		case 0xd7:
-		case 0xd8:
-		case 0xd9:
-		case 0xda:
+		case 0xd0 ... 0xda:
 			if (!__gdbstub_mark_bp(pc + 1, 0))
 				goto fault;
 			if (regs->pc != regs->lar &&
diff --git a/arch/mn10300/kernel/init_task.c b/arch/mn10300/kernel/init_task.c
index af16f6e5c91..5ac3566f8c9 100644
--- a/arch/mn10300/kernel/init_task.c
+++ b/arch/mn10300/kernel/init_task.c
@@ -18,7 +18,6 @@
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 
-static struct fs_struct init_fs = INIT_FS;
 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
 struct mm_struct init_mm = INIT_MM(init_mm);
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index aa07d0cd190..59b9c4bf958 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -566,6 +566,11 @@ static void mn10300_serial_transmit_interrupt(struct mn10300_serial_port *port)
 {
 	_enter("%s", port->name);
 
+	if (!port->uart.info || !port->uart.info->port.tty) {
+		mn10300_serial_dis_tx_intr(port);
+		return;
+	}
+
 	if (uart_tx_stopped(&port->uart) ||
 	    uart_circ_empty(&port->uart.info->xmit))
 		mn10300_serial_dis_tx_intr(port);
diff --git a/arch/mn10300/kernel/module.c b/arch/mn10300/kernel/module.c
index 8fa36893df7..6b287f2e8e8 100644
--- a/arch/mn10300/kernel/module.c
+++ b/arch/mn10300/kernel/module.c
@@ -1,6 +1,6 @@
 /* MN10300 Kernel module helper routines
  *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2007, 2008 Red Hat, Inc. All Rights Reserved.
  * Written by Mark Salter (msalter@redhat.com)
  * - Derived from arch/i386/kernel/module.c
  *
@@ -64,21 +64,6 @@ int module_frob_arch_sections(Elf_Ehdr *hdr,
 	return 0;
 }
 
-static uint32_t reloc_get16(uint8_t *p)
-{
-	return p[0] | (p[1] << 8);
-}
-
-static uint32_t reloc_get24(uint8_t *p)
-{
-	return reloc_get16(p) | (p[2] << 16);
-}
-
-static uint32_t reloc_get32(uint8_t *p)
-{
-	return reloc_get16(p) | (reloc_get16(p+2) << 16);
-}
-
 static void reloc_put16(uint8_t *p, uint32_t val)
 {
 	p[0] = val & 0xff;
@@ -144,25 +129,19 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 		relocation = sym->st_value + rel[i].r_addend;
 
 		switch (ELF32_R_TYPE(rel[i].r_info)) {
-			/* for the first four relocation types, we add the
-			 * adjustment into the value at the location given */
+			/* for the first four relocation types, we simply
+			 * store the adjustment at the location given */
 		case R_MN10300_32:
-			value = reloc_get32(location);
-			value += relocation;
-			reloc_put32(location, value);
+			reloc_put32(location, relocation);
 			break;
 		case R_MN10300_24:
-			value = reloc_get24(location);
-			value += relocation;
-			reloc_put24(location, value);
+			reloc_put24(location, relocation);
 			break;
 		case R_MN10300_16:
-			value = reloc_get16(location);
-			value += relocation;
-			reloc_put16(location, value);
+			reloc_put16(location, relocation);
 			break;
 		case R_MN10300_8:
-			*location += relocation;
+			*location = relocation;
 			break;
 
 			/* for the next three relocation types, we write the
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index 017121ce896..e1d88ab5100 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -161,7 +161,7 @@ void __init setup_arch(char **cmdline_p)
 	   reserve the page it is occupying. */
 	if (CONFIG_INTERRUPT_VECTOR_BASE >= CONFIG_KERNEL_RAM_BASE_ADDRESS &&
 	    CONFIG_INTERRUPT_VECTOR_BASE < memory_end)
-		reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, 1,
+		reserve_bootmem(CONFIG_INTERRUPT_VECTOR_BASE, PAGE_SIZE,
 				BOOTMEM_DEFAULT);
 
 	reserve_bootmem(PAGE_ALIGN(PFN_PHYS(free_pfn)), bootmap_size,
diff --git a/arch/mn10300/kernel/vmlinux.lds.S b/arch/mn10300/kernel/vmlinux.lds.S
index a3e80f444f5..b8259668f7d 100644
--- a/arch/mn10300/kernel/vmlinux.lds.S
+++ b/arch/mn10300/kernel/vmlinux.lds.S
@@ -11,6 +11,7 @@
 #define __VMLINUX_LDS__
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/thread_info.h>
+#include <asm/page.h>
 
 OUTPUT_FORMAT("elf32-am33lin", "elf32-am33lin", "elf32-am33lin")
 OUTPUT_ARCH(mn10300)
@@ -55,13 +56,13 @@ SECTIONS
 	CONSTRUCTORS
 	}
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __nosave_begin = .;
   .data_nosave : { *(.data.nosave) }
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __nosave_end = .;
 
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .data.page_aligned : { *(.data.idt) }
 
   . = ALIGN(32);
@@ -78,7 +79,7 @@ SECTIONS
   .data.init_task : { *(.data.init_task) }
 
   /* might get freed after init */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) {
   	__smp_locks = .;
 	*(.smp_locks)
@@ -86,7 +87,7 @@ SECTIONS
   }
 
   /* will be freed after init */
-  . = ALIGN(4096);		/* Init code and data */
+  . = ALIGN(PAGE_SIZE);		/* Init code and data */
   __init_begin = .;
   .init.text : {
 	_sinittext = .;
@@ -120,17 +121,14 @@ SECTIONS
   .exit.data : { *(.exit.data) }
 
 #ifdef CONFIG_BLK_DEV_INITRD
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   __initramfs_start = .;
   .init.ramfs : { *(.init.ramfs) }
   __initramfs_end = .;
 #endif
 
-  . = ALIGN(32);
-  __per_cpu_start = .;
-  .data.percpu  : { *(.data.percpu) }
-  __per_cpu_end = .;
-  . = ALIGN(4096);
+  PERCPU(32)
+  . = ALIGN(PAGE_SIZE);
   __init_end = .;
   /* freed after init ends here */
 
@@ -145,7 +143,7 @@ SECTIONS
   _end = . ;
 
   /* This is where the kernel creates the early boot page tables */
-  . = ALIGN(4096);
+  . = ALIGN(PAGE_SIZE);
   pg0 = .;
 
   /* Sections to be discarded */
diff --git a/arch/mn10300/mm/misalignment.c b/arch/mn10300/mm/misalignment.c
index 32aa89dc384..94c4a435806 100644
--- a/arch/mn10300/mm/misalignment.c
+++ b/arch/mn10300/mm/misalignment.c
@@ -37,26 +37,22 @@
 #include <asm/asm-offsets.h>
 
 #if 0
-#define kdebug(FMT, ...) printk(KERN_DEBUG FMT, ##__VA_ARGS__)
+#define kdebug(FMT, ...) printk(KERN_DEBUG "MISALIGN: "FMT"\n", ##__VA_ARGS__)
 #else
 #define kdebug(FMT, ...) do {} while (0)
 #endif
 
-static int misalignment_addr(unsigned long *registers, unsigned params,
-			     unsigned opcode, unsigned disp,
-			     void **_address, unsigned long **_postinc);
+static int misalignment_addr(unsigned long *registers, unsigned long sp,
+			     unsigned params, unsigned opcode,
+			     unsigned long disp,
+			     void **_address, unsigned long **_postinc,
+			     unsigned long *_inc);
 
 static int misalignment_reg(unsigned long *registers, unsigned params,
-			    unsigned opcode, unsigned disp,
+			    unsigned opcode, unsigned long disp,
 			    unsigned long **_register);
 
-static inline unsigned int_log2(unsigned x)
-{
-	unsigned y;
-	asm("bsch %1,%0" : "=r"(y) : "r"(x), "0"(0));
-	return y;
-}
-#define log2(x) int_log2(x)
+static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode);
 
 static const unsigned Dreg_index[] = {
 	REG_D0 >> 2, REG_D1 >> 2, REG_D2 >> 2, REG_D3 >> 2
@@ -86,9 +82,10 @@ enum format_id {
 	FMT_D7,
 	FMT_D8,
 	FMT_D9,
+	FMT_D10,
 };
 
-struct {
+static const struct {
 	u_int8_t opsz, dispsz;
 } format_tbl[16] = {
 	[FMT_S0]	= { 8,	0	},
@@ -103,6 +100,7 @@ struct {
 	[FMT_D7]	= { 24,	8	},
 	[FMT_D8]	= { 24,	24	},
 	[FMT_D9]	= { 24,	32	},
+	[FMT_D10]	= { 32,	0	},
 };
 
 enum value_id {
@@ -128,9 +126,14 @@ enum value_id {
 	SD24,		/* 24-bit signed displacement */
 	SIMM4_2,	/* 4-bit signed displacement in opcode bits 4-7 */
 	SIMM8,		/* 8-bit signed immediate */
+	IMM8,		/* 8-bit unsigned immediate */
+	IMM16,		/* 16-bit unsigned immediate */
 	IMM24,		/* 24-bit unsigned immediate */
 	IMM32,		/* 32-bit unsigned immediate */
-	IMM32_HIGH8,	/* 32-bit unsigned immediate, high 8-bits in opcode */
+	IMM32_HIGH8,	/* 32-bit unsigned immediate, LSB in opcode */
+
+	IMM32_MEM,	/* 32-bit unsigned displacement */
+	IMM32_HIGH8_MEM, /* 32-bit unsigned displacement, LSB in opcode */
 
 	DN0	= DM0,
 	DN1	= DM1,
@@ -149,7 +152,7 @@ enum value_id {
 };
 
 struct mn10300_opcode {
-	const char	*name;
+	const char	name[8];
 	u_int32_t	opcode;
 	u_int32_t	opmask;
 	unsigned	exclusion;
@@ -185,6 +188,10 @@ struct mn10300_opcode {
    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */
 static const struct mn10300_opcode mn10300_opcodes[] = {
+{ "mov",	0x4200,	     0xf300,	  0,    FMT_S1, 0,	{DM1, MEM2(IMM8, SP)}},
+{ "mov",	0x4300,	     0xf300,	  0,    FMT_S1, 0,	{AM1, MEM2(IMM8, SP)}},
+{ "mov",	0x5800,	     0xfc00,	  0,    FMT_S1, 0,	{MEM2(IMM8, SP), DN0}},
+{ "mov",	0x5c00,	     0xfc00,	  0,    FMT_S1, 0,	{MEM2(IMM8, SP), AN0}},
 { "mov",	0x60,	     0xf0,	  0,    FMT_S0, 0,	{DM1, MEM(AN0)}},
 { "mov",	0x70,	     0xf0,	  0,    FMT_S0, 0,	{MEM(AM0), DN1}},
 { "mov",	0xf000,	     0xfff0,	  0,    FMT_D0, 0,	{MEM(AM0), AN1}},
@@ -197,8 +204,6 @@ static const struct mn10300_opcode mn10300_opcodes[] = {
 { "mov",	0xf81000,    0xfff000,    0,    FMT_D1, 0,	{DM1, MEM2(SD8, AN0)}},
 { "mov",	0xf82000,    0xfff000,    0,    FMT_D1, 0,	{MEM2(SD8,AM0), AN1}},
 { "mov",	0xf83000,    0xfff000,    0,    FMT_D1, 0,	{AM1, MEM2(SD8, AN0)}},
-{ "mov",	0xf8f000,    0xfffc00,    0,    FMT_D1, AM33,	{MEM2(SD8, AM0), SP}},
-{ "mov",	0xf8f400,    0xfffc00,    0,    FMT_D1, AM33,	{SP, MEM2(SD8, AN0)}},
 { "mov",	0xf90a00,    0xffff00,    0,    FMT_D6, AM33,	{MEM(RM0), RN2}},
 { "mov",	0xf91a00,    0xffff00,    0,    FMT_D6, AM33,	{RM2, MEM(RN0)}},
 { "mov",	0xf96a00,    0xffff00,    0x12, FMT_D6, AM33,	{MEMINC(RM0), RN2}},
@@ -207,24 +212,46 @@ static const struct mn10300_opcode mn10300_opcodes[] = {
 { "mov",	0xfa100000,  0xfff00000,  0,    FMT_D2, 0,	{DM1, MEM2(SD16, AN0)}},
 { "mov",	0xfa200000,  0xfff00000,  0,    FMT_D2, 0,	{MEM2(SD16, AM0), AN1}},
 { "mov",	0xfa300000,  0xfff00000,  0,    FMT_D2, 0,	{AM1, MEM2(SD16, AN0)}},
+{ "mov",	0xfa900000,  0xfff30000,  0,    FMT_D2, 0,	{AM1, MEM2(IMM16, SP)}},
+{ "mov",	0xfa910000,  0xfff30000,  0,    FMT_D2, 0,	{DM1, MEM2(IMM16, SP)}},
+{ "mov",	0xfab00000,  0xfffc0000,  0,    FMT_D2, 0,	{MEM2(IMM16, SP), AN0}},
+{ "mov",	0xfab40000,  0xfffc0000,  0,    FMT_D2, 0,	{MEM2(IMM16, SP), DN0}},
 { "mov",	0xfb0a0000,  0xffff0000,  0,    FMT_D7, AM33,	{MEM2(SD8, RM0), RN2}},
 { "mov",	0xfb1a0000,  0xffff0000,  0,    FMT_D7, AM33,	{RM2, MEM2(SD8, RN0)}},
 { "mov",	0xfb6a0000,  0xffff0000,  0x22, FMT_D7, AM33,	{MEMINC2 (RM0, SIMM8), RN2}},
 { "mov",	0xfb7a0000,  0xffff0000,  0,	FMT_D7, AM33,	{RM2, MEMINC2 (RN0, SIMM8)}},
+{ "mov",	0xfb8a0000,  0xffff0f00,  0,    FMT_D7, AM33,	{MEM2(IMM8, SP), RN2}},
 { "mov",	0xfb8e0000,  0xffff000f,  0,    FMT_D7, AM33,	{MEM2(RI, RM0), RD2}},
+{ "mov",	0xfb9a0000,  0xffff0f00,  0,    FMT_D7, AM33,	{RM2, MEM2(IMM8, SP)}},
 { "mov",	0xfb9e0000,  0xffff000f,  0,    FMT_D7, AM33,	{RD2, MEM2(RI, RN0)}},
 { "mov",	0xfc000000,  0xfff00000,  0,    FMT_D4, 0,	{MEM2(IMM32,AM0), DN1}},
 { "mov",	0xfc100000,  0xfff00000,  0,    FMT_D4, 0,	{DM1, MEM2(IMM32,AN0)}},
 { "mov",	0xfc200000,  0xfff00000,  0,    FMT_D4, 0,	{MEM2(IMM32,AM0), AN1}},
 { "mov",	0xfc300000,  0xfff00000,  0,    FMT_D4, 0,	{AM1, MEM2(IMM32,AN0)}},
+{ "mov",	0xfc800000,  0xfff30000,  0,    FMT_D4, 0,	{AM1, MEM(IMM32_MEM)}},
+{ "mov",	0xfc810000,  0xfff30000,  0,    FMT_D4, 0,	{DM1, MEM(IMM32_MEM)}},
+{ "mov",	0xfc900000,  0xfff30000,  0,    FMT_D4, 0,	{AM1, MEM2(IMM32, SP)}},
+{ "mov",	0xfc910000,  0xfff30000,  0,    FMT_D4, 0,	{DM1, MEM2(IMM32, SP)}},
+{ "mov",	0xfca00000,  0xfffc0000,  0,    FMT_D4, 0,	{MEM(IMM32_MEM), AN0}},
+{ "mov",	0xfca40000,  0xfffc0000,  0,    FMT_D4, 0,	{MEM(IMM32_MEM), DN0}},
+{ "mov",	0xfcb00000,  0xfffc0000,  0,    FMT_D4, 0,	{MEM2(IMM32, SP), AN0}},
+{ "mov",	0xfcb40000,  0xfffc0000,  0,    FMT_D4, 0,	{MEM2(IMM32, SP), DN0}},
 { "mov",	0xfd0a0000,  0xffff0000,  0,    FMT_D8, AM33,	{MEM2(SD24, RM0), RN2}},
 { "mov",	0xfd1a0000,  0xffff0000,  0,    FMT_D8, AM33,	{RM2, MEM2(SD24, RN0)}},
 { "mov",	0xfd6a0000,  0xffff0000,  0x22, FMT_D8, AM33,	{MEMINC2 (RM0, IMM24), RN2}},
 { "mov",	0xfd7a0000,  0xffff0000,  0,	FMT_D8, AM33,	{RM2, MEMINC2 (RN0, IMM24)}},
+{ "mov",	0xfd8a0000,  0xffff0f00,  0,    FMT_D8, AM33,	{MEM2(IMM24, SP), RN2}},
+{ "mov",	0xfd9a0000,  0xffff0f00,  0,    FMT_D8, AM33,	{RM2, MEM2(IMM24, SP)}},
 { "mov",	0xfe0a0000,  0xffff0000,  0,    FMT_D9, AM33,	{MEM2(IMM32_HIGH8,RM0), RN2}},
+{ "mov",	0xfe0a0000,  0xffff0000,  0,    FMT_D9, AM33,	{MEM2(IMM32_HIGH8,RM0), RN2}},
+{ "mov",	0xfe0e0000,  0xffff0f00,  0,    FMT_D9, AM33,	{MEM(IMM32_HIGH8_MEM), RN2}},
+{ "mov",	0xfe1a0000,  0xffff0000,  0,    FMT_D9, AM33,	{RM2, MEM2(IMM32_HIGH8, RN0)}},
 { "mov",	0xfe1a0000,  0xffff0000,  0,    FMT_D9, AM33,	{RM2, MEM2(IMM32_HIGH8, RN0)}},
+{ "mov",	0xfe1e0000,  0xffff0f00,  0,    FMT_D9, AM33,	{RM2, MEM(IMM32_HIGH8_MEM)}},
 { "mov",	0xfe6a0000,  0xffff0000,  0x22, FMT_D9, AM33,	{MEMINC2 (RM0, IMM32_HIGH8), RN2}},
 { "mov",	0xfe7a0000,  0xffff0000,  0,	FMT_D9, AM33,	{RN2, MEMINC2 (RM0, IMM32_HIGH8)}},
+{ "mov",	0xfe8a0000,  0xffff0f00,  0,    FMT_D9, AM33,	{MEM2(IMM32_HIGH8, SP), RN2}},
+{ "mov",	0xfe9a0000,  0xffff0f00,  0,    FMT_D9, AM33,	{RM2, MEM2(IMM32_HIGH8, SP)}},
 
 { "movhu",	0xf060,	     0xfff0,	  0,    FMT_D0, 0,	{MEM(AM0), DN1}},
 { "movhu",	0xf070,	     0xfff0,	  0,    FMT_D0, 0,	{DM1, MEM(AN0)}},
@@ -232,29 +259,58 @@ static const struct mn10300_opcode mn10300_opcodes[] = {
 { "movhu",	0xf4c0,	     0xffc0,	  0,    FMT_D0, 0,	{DM2, MEM2(DI, AN0)}},
 { "movhu",	0xf86000,    0xfff000,    0,    FMT_D1, 0,	{MEM2(SD8, AM0), DN1}},
 { "movhu",	0xf87000,    0xfff000,    0,    FMT_D1, 0,	{DM1, MEM2(SD8, AN0)}},
+{ "movhu",	0xf89300,    0xfff300,    0,    FMT_D1, 0,	{DM1, MEM2(IMM8, SP)}},
+{ "movhu",	0xf8bc00,    0xfffc00,    0,    FMT_D1, 0,	{MEM2(IMM8, SP), DN0}},
 { "movhu",	0xf94a00,    0xffff00,    0,    FMT_D6, AM33,	{MEM(RM0), RN2}},
 { "movhu",	0xf95a00,    0xffff00,    0,    FMT_D6, AM33,	{RM2, MEM(RN0)}},
 { "movhu",	0xf9ea00,    0xffff00,    0x12, FMT_D6, AM33,	{MEMINC(RM0), RN2}},
 { "movhu",	0xf9fa00,    0xffff00,    0,	FMT_D6, AM33,	{RM2, MEMINC(RN0)}},
 { "movhu",	0xfa600000,  0xfff00000,  0,    FMT_D2, 0,	{MEM2(SD16, AM0), DN1}},
 { "movhu",	0xfa700000,  0xfff00000,  0,    FMT_D2, 0,	{DM1, MEM2(SD16, AN0)}},
+{ "movhu",	0xfa930000,  0xfff30000,  0,    FMT_D2, 0,	{DM1, MEM2(IMM16, SP)}},
+{ "movhu",	0xfabc0000,  0xfffc0000,  0,    FMT_D2, 0,	{MEM2(IMM16, SP), DN0}},
 { "movhu",	0xfb4a0000,  0xffff0000,  0,    FMT_D7, AM33,	{MEM2(SD8, RM0), RN2}},
 { "movhu",	0xfb5a0000,  0xffff0000,  0,    FMT_D7, AM33,	{RM2, MEM2(SD8, RN0)}},
+{ "movhu",	0xfbca0000,  0xffff0f00,  0,    FMT_D7, AM33,	{MEM2(IMM8, SP), RN2}},
 { "movhu",	0xfbce0000,  0xffff000f,  0,    FMT_D7, AM33,	{MEM2(RI, RM0), RD2}},
+{ "movhu",	0xfbda0000,  0xffff0f00,  0,    FMT_D7, AM33,	{RM2, MEM2(IMM8, SP)}},
 { "movhu",	0xfbde0000,  0xffff000f,  0,    FMT_D7, AM33,	{RD2, MEM2(RI, RN0)}},
 { "movhu",	0xfbea0000,  0xffff0000,  0x22, FMT_D7, AM33,	{MEMINC2 (RM0, SIMM8), RN2}},
 { "movhu",	0xfbfa0000,  0xffff0000,  0,	FMT_D7, AM33,	{RM2, MEMINC2 (RN0, SIMM8)}},
 { "movhu",	0xfc600000,  0xfff00000,  0,    FMT_D4, 0,	{MEM2(IMM32,AM0), DN1}},
 { "movhu",	0xfc700000,  0xfff00000,  0,    FMT_D4, 0,	{DM1, MEM2(IMM32,AN0)}},
+{ "movhu",	0xfc830000,  0xfff30000,  0,    FMT_D4, 0,	{DM1, MEM(IMM32_MEM)}},
+{ "movhu",	0xfc930000,  0xfff30000,  0,    FMT_D4, 0,	{DM1, MEM2(IMM32, SP)}},
+{ "movhu",	0xfcac0000,  0xfffc0000,  0,    FMT_D4, 0,	{MEM(IMM32_MEM), DN0}},
+{ "movhu",	0xfcbc0000,  0xfffc0000,  0,    FMT_D4, 0,	{MEM2(IMM32, SP), DN0}},
 { "movhu",	0xfd4a0000,  0xffff0000,  0,    FMT_D8, AM33,	{MEM2(SD24, RM0), RN2}},
 { "movhu",	0xfd5a0000,  0xffff0000,  0,    FMT_D8, AM33,	{RM2, MEM2(SD24, RN0)}},
+{ "movhu",	0xfdca0000,  0xffff0f00,  0,    FMT_D8, AM33,	{MEM2(IMM24, SP), RN2}},
+{ "movhu",	0xfdda0000,  0xffff0f00,  0,    FMT_D8, AM33,	{RM2, MEM2(IMM24, SP)}},
 { "movhu",	0xfdea0000,  0xffff0000,  0x22, FMT_D8, AM33,	{MEMINC2 (RM0, IMM24), RN2}},
 { "movhu",	0xfdfa0000,  0xffff0000,  0,	FMT_D8, AM33,	{RM2, MEMINC2 (RN0, IMM24)}},
 { "movhu",	0xfe4a0000,  0xffff0000,  0,    FMT_D9, AM33,	{MEM2(IMM32_HIGH8,RM0), RN2}},
+{ "movhu",	0xfe4e0000,  0xffff0f00,  0,    FMT_D9, AM33,	{MEM(IMM32_HIGH8_MEM), RN2}},
 { "movhu",	0xfe5a0000,  0xffff0000,  0,    FMT_D9, AM33,	{RM2, MEM2(IMM32_HIGH8, RN0)}},
+{ "movhu",	0xfe5e0000,  0xffff0f00,  0,    FMT_D9, AM33,	{RM2, MEM(IMM32_HIGH8_MEM)}},
+{ "movhu",	0xfeca0000,  0xffff0f00,  0,    FMT_D9, AM33,	{MEM2(IMM32_HIGH8, SP), RN2}},
+{ "movhu",	0xfeda0000,  0xffff0f00,  0,    FMT_D9, AM33,	{RM2, MEM2(IMM32_HIGH8, SP)}},
 { "movhu",	0xfeea0000,  0xffff0000,  0x22, FMT_D9, AM33,	{MEMINC2 (RM0, IMM32_HIGH8), RN2}},
 { "movhu",	0xfefa0000,  0xffff0000,  0,	FMT_D9, AM33,	{RN2, MEMINC2 (RM0, IMM32_HIGH8)}},
-{ 0, 0, 0, 0, 0, 0, {0}},
+
+{ "mov_llt",	0xf7e00000,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lgt",	0xf7e00001,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lge",	0xf7e00002,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lle",	0xf7e00003,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lcs",	0xf7e00004,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lhi",	0xf7e00005,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lcc",	0xf7e00006,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lls",	0xf7e00007,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_leq",	0xf7e00008,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lne",	0xf7e00009,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+{ "mov_lra",	0xf7e0000a,  0xffff000f,  0x22, FMT_D10, AM33,	 {MEMINC2 (RN4,SIMM4_2), RM6}},
+
+{ "", 0, 0, 0, 0, 0, {0}},
 };
 
 /*
@@ -265,18 +321,21 @@ asmlinkage void misalignment(struct pt_regs *regs, enum exception_code code)
 	const struct exception_table_entry *fixup;
 	const struct mn10300_opcode *pop;
 	unsigned long *registers = (unsigned long *) regs;
-	unsigned long data, *store, *postinc;
+	unsigned long data, *store, *postinc, disp, inc, sp;
 	mm_segment_t seg;
 	siginfo_t info;
-	uint32_t opcode, disp, noc, xo, xm;
-	uint8_t *pc, byte;
+	uint32_t opcode, noc, xo, xm;
+	uint8_t *pc, byte, datasz;
 	void *address;
-	unsigned tmp, npop;
+	unsigned tmp, npop, dispsz, loop;
+
+	/* we don't fix up userspace misalignment faults */
+	if (user_mode(regs))
+		goto bus_error;
 
-	kdebug("MISALIGN at %lx\n", regs->pc);
+	sp = (unsigned long) regs + sizeof(*regs);
 
-	if (in_interrupt())
-		die("Misalignment trap in interrupt context", regs, code);
+	kdebug("==>misalignment({pc=%lx,sp=%lx})", regs->pc, sp);
 
 	if (regs->epsw & EPSW_IE)
 		asm volatile("or %0,epsw" : : "i"(EPSW_IE));
@@ -294,8 +353,8 @@ asmlinkage void misalignment(struct pt_regs *regs, enum exception_code code)
 	opcode = byte;
 	noc = 8;
 
-	for (pop = mn10300_opcodes; pop->name; pop++) {
-		npop = log2(pop->opcode | pop->opmask);
+	for (pop = mn10300_opcodes; pop->name[0]; pop++) {
+		npop = ilog2(pop->opcode | pop->opmask);
 		if (npop <= 0 || npop > 31)
 			continue;
 		npop = (npop + 8) & ~7;
@@ -328,15 +387,15 @@ asmlinkage void misalignment(struct pt_regs *regs, enum exception_code code)
 	}
 
 	/* didn't manage to find a fixup */
-	if (!user_mode(regs))
-		printk(KERN_CRIT "MISALIGN: %lx: unsupported instruction %x\n",
-		       regs->pc, opcode);
+	printk(KERN_CRIT "MISALIGN: %lx: unsupported instruction %x\n",
+	       regs->pc, opcode);
 
 failed:
 	set_fs(seg);
 	if (die_if_no_fixup("misalignment error", regs, code))
 		return;
 
+bus_error:
 	info.si_signo	= SIGBUS;
 	info.si_errno	= 0;
 	info.si_code	= BUS_ADRALN;
@@ -346,31 +405,27 @@ failed:
 
 	/* error reading opcodes */
 fetch_error:
-	if (!user_mode(regs))
-		printk(KERN_CRIT
-		       "MISALIGN: %p: fault whilst reading instruction data\n",
-		       pc);
+	printk(KERN_CRIT
+	       "MISALIGN: %p: fault whilst reading instruction data\n",
+	       pc);
 	goto failed;
 
 bad_addr_mode:
-	if (!user_mode(regs))
-		printk(KERN_CRIT
-		       "MISALIGN: %lx: unsupported addressing mode %x\n",
-		       regs->pc, opcode);
+	printk(KERN_CRIT
+	       "MISALIGN: %lx: unsupported addressing mode %x\n",
+	       regs->pc, opcode);
 	goto failed;
 
 bad_reg_mode:
-	if (!user_mode(regs))
-		printk(KERN_CRIT
-		       "MISALIGN: %lx: unsupported register mode %x\n",
-		       regs->pc, opcode);
+	printk(KERN_CRIT
+	       "MISALIGN: %lx: unsupported register mode %x\n",
+	       regs->pc, opcode);
 	goto failed;
 
 unsupported_instruction:
-	if (!user_mode(regs))
-		printk(KERN_CRIT
-		       "MISALIGN: %lx: unsupported instruction %x (%s)\n",
-		       regs->pc, opcode, pop->name);
+	printk(KERN_CRIT
+	       "MISALIGN: %lx: unsupported instruction %x (%s)\n",
+	       regs->pc, opcode, pop->name);
 	goto failed;
 
 transfer_failed:
@@ -391,7 +446,7 @@ transfer_failed:
 
 	/* we matched the opcode */
 found_opcode:
-	kdebug("MISALIGN: %lx: %x==%x { %x, %x }\n",
+	kdebug("%lx: %x==%x { %x, %x }",
 	       regs->pc, opcode, pop->opcode, pop->params[0], pop->params[1]);
 
 	tmp = format_tbl[pop->format].opsz;
@@ -406,106 +461,108 @@ found_opcode:
 
 	/* grab the extra displacement (note it's LSB first) */
 	disp = 0;
-	tmp = format_tbl[pop->format].dispsz >> 3;
-	while (tmp > 0) {
-		tmp--;
-		disp <<= 8;
-
+	dispsz = format_tbl[pop->format].dispsz;
+	for (loop = 0; loop < dispsz; loop += 8) {
 		pc++;
 		if (__get_user(byte, pc) != 0)
 			goto fetch_error;
-		disp |= byte;
+		disp |= byte << loop;
+		kdebug("{%p} disp[%02x]=%02x", pc, loop, byte);
 	}
 
+	kdebug("disp=%lx", disp);
+
 	set_fs(KERNEL_XDS);
-	if (fixup || regs->epsw & EPSW_nSL)
+	if (fixup)
 		set_fs(seg);
 
 	tmp = (pop->params[0] ^ pop->params[1]) & 0x80000000;
 	if (!tmp) {
-		if (!user_mode(regs))
-			printk(KERN_CRIT
-			       "MISALIGN: %lx:"
-			       " insn not move to/from memory %x\n",
-			       regs->pc, opcode);
+		printk(KERN_CRIT
+		       "MISALIGN: %lx: insn not move to/from memory %x\n",
+		       regs->pc, opcode);
 		goto failed;
 	}
 
+	/* determine the data transfer size of the move */
+	if (pop->name[3] == 0 || /* "mov" */
+	    pop->name[4] == 'l') /* mov_lcc */
+		inc = datasz = 4;
+	else if (pop->name[3] == 'h') /* movhu */
+		inc = datasz = 2;
+	else
+		goto unsupported_instruction;
+
 	if (pop->params[0] & 0x80000000) {
 		/* move memory to register */
-		if (!misalignment_addr(registers, pop->params[0], opcode, disp,
-				       &address, &postinc))
+		if (!misalignment_addr(registers, sp,
+				       pop->params[0], opcode, disp,
+				       &address, &postinc, &inc))
 			goto bad_addr_mode;
 
 		if (!misalignment_reg(registers, pop->params[1], opcode, disp,
 				      &store))
 			goto bad_reg_mode;
 
-		if (strcmp(pop->name, "mov") == 0) {
-			kdebug("FIXUP: mov (%p),DARn\n", address);
-			if (copy_from_user(&data, (void *) address, 4) != 0)
-				goto transfer_failed;
-			if (pop->params[0] & 0x1000000)
-				*postinc += 4;
-		} else if (strcmp(pop->name, "movhu") == 0) {
-			kdebug("FIXUP: movhu (%p),DARn\n", address);
-			data = 0;
-			if (copy_from_user(&data, (void *) address, 2) != 0)
-				goto transfer_failed;
-			if (pop->params[0] & 0x1000000)
-				*postinc += 2;
-		} else {
-			goto unsupported_instruction;
+		kdebug("mov%u (%p),DARn", datasz, address);
+		if (copy_from_user(&data, (void *) address, datasz) != 0)
+			goto transfer_failed;
+		if (pop->params[0] & 0x1000000) {
+			kdebug("inc=%lx", inc);
+			*postinc += inc;
 		}
 
 		*store = data;
+		kdebug("loaded %lx", data);
 	} else {
 		/* move register to memory */
 		if (!misalignment_reg(registers, pop->params[0], opcode, disp,
 				      &store))
 			goto bad_reg_mode;
 
-		if (!misalignment_addr(registers, pop->params[1], opcode, disp,
-				       &address, &postinc))
+		if (!misalignment_addr(registers, sp,
+				       pop->params[1], opcode, disp,
+				       &address, &postinc, &inc))
 			goto bad_addr_mode;
 
 		data = *store;
 
-		if (strcmp(pop->name, "mov") == 0) {
-			kdebug("FIXUP: mov %lx,(%p)\n", data, address);
-			if (copy_to_user((void *) address, &data, 4) != 0)
-				goto transfer_failed;
-			if (pop->params[1] & 0x1000000)
-				*postinc += 4;
-		} else if (strcmp(pop->name, "movhu") == 0) {
-			kdebug("FIXUP: movhu %hx,(%p)\n",
-			       (uint16_t) data, address);
-			if (copy_to_user((void *) address, &data, 2) != 0)
-				goto transfer_failed;
-			if (pop->params[1] & 0x1000000)
-				*postinc += 2;
-		} else {
-			goto unsupported_instruction;
-		}
+		kdebug("mov%u %lx,(%p)", datasz, data, address);
+		if (copy_to_user((void *) address, &data, datasz) != 0)
+			goto transfer_failed;
+		if (pop->params[1] & 0x1000000)
+			*postinc += inc;
 	}
 
 	tmp = format_tbl[pop->format].opsz + format_tbl[pop->format].dispsz;
 	regs->pc += tmp >> 3;
 
+	/* handle MOV_Lcc, which are currently the only FMT_D10 insns that
+	 * access memory */
+	if (pop->format == FMT_D10)
+		misalignment_MOV_Lcc(regs, opcode);
+
 	set_fs(seg);
-	return;
 }
 
 /*
  * determine the address that was being accessed
  */
-static int misalignment_addr(unsigned long *registers, unsigned params,
-			     unsigned opcode, unsigned disp,
-			     void **_address, unsigned long **_postinc)
+static int misalignment_addr(unsigned long *registers, unsigned long sp,
+			     unsigned params, unsigned opcode,
+			     unsigned long disp,
+			     void **_address, unsigned long **_postinc,
+			     unsigned long *_inc)
 {
 	unsigned long *postinc = NULL, address = 0, tmp;
 
-	params &= 0x7fffffff;
+	if (!(params & 0x1000000)) {
+		kdebug("noinc");
+		*_inc = 0;
+		_inc = NULL;
+	}
+
+	params &= 0x00ffffff;
 
 	do {
 		switch (params & 0xff) {
@@ -514,11 +571,11 @@ static int misalignment_addr(unsigned long *registers, unsigned params,
 			address += *postinc;
 			break;
 		case DM1:
-			postinc = &registers[Dreg_index[opcode >> 2 & 0x0c]];
+			postinc = &registers[Dreg_index[opcode >> 2 & 0x03]];
 			address += *postinc;
 			break;
 		case DM2:
-			postinc = &registers[Dreg_index[opcode >> 4 & 0x30]];
+			postinc = &registers[Dreg_index[opcode >> 4 & 0x03]];
 			address += *postinc;
 			break;
 		case AM0:
@@ -526,11 +583,11 @@ static int misalignment_addr(unsigned long *registers, unsigned params,
 			address += *postinc;
 			break;
 		case AM1:
-			postinc = &registers[Areg_index[opcode >> 2 & 0x0c]];
+			postinc = &registers[Areg_index[opcode >> 2 & 0x03]];
 			address += *postinc;
 			break;
 		case AM2:
-			postinc = &registers[Areg_index[opcode >> 4 & 0x30]];
+			postinc = &registers[Areg_index[opcode >> 4 & 0x03]];
 			address += *postinc;
 			break;
 		case RM0:
@@ -561,33 +618,53 @@ static int misalignment_addr(unsigned long *registers, unsigned params,
 			postinc = &registers[Rreg_index[disp >> 4 & 0x0f]];
 			address += *postinc;
 			break;
+		case SP:
+			address += sp;
+			break;
 
+			/* displacements are either to be added to the address
+			 * before use, or, in the case of post-inc addressing,
+			 * to be added into the base register after use */
 		case SD8:
 		case SIMM8:
-			address += (int32_t) (int8_t) (disp & 0xff);
-			break;
+			disp = (long) (int8_t) (disp & 0xff);
+			goto displace_or_inc;
 		case SD16:
-			address += (int32_t) (int16_t) (disp & 0xffff);
-			break;
+			disp = (long) (int16_t) (disp & 0xffff);
+			goto displace_or_inc;
 		case SD24:
 			tmp = disp << 8;
 			asm("asr 8,%0" : "=r"(tmp) : "0"(tmp));
-			address += tmp;
-			break;
+			disp = (long) tmp;
+			goto displace_or_inc;
 		case SIMM4_2:
 			tmp = opcode >> 4 & 0x0f;
 			tmp <<= 28;
 			asm("asr 28,%0" : "=r"(tmp) : "0"(tmp));
-			address += tmp;
-			break;
+			disp = (long) tmp;
+			goto displace_or_inc;
+		case IMM8:
+			disp &= 0x000000ff;
+			goto displace_or_inc;
+		case IMM16:
+			disp &= 0x0000ffff;
+			goto displace_or_inc;
 		case IMM24:
-			address += disp & 0x00ffffff;
-			break;
+			disp &= 0x00ffffff;
+			goto displace_or_inc;
 		case IMM32:
+		case IMM32_MEM:
 		case IMM32_HIGH8:
-			address += disp;
+		case IMM32_HIGH8_MEM:
+		displace_or_inc:
+			kdebug("%s %lx", _inc ? "incr" : "disp", disp);
+			if (!_inc)
+				address += disp;
+			else
+				*_inc = disp;
 			break;
 		default:
+			BUG();
 			return 0;
 		}
 	} while ((params >>= 8));
@@ -601,7 +678,7 @@ static int misalignment_addr(unsigned long *registers, unsigned params,
  * determine the register that is acting as source/dest
  */
 static int misalignment_reg(unsigned long *registers, unsigned params,
-			    unsigned opcode, unsigned disp,
+			    unsigned opcode, unsigned long disp,
 			    unsigned long **_register)
 {
 	params &= 0x7fffffff;
@@ -654,8 +731,239 @@ static int misalignment_reg(unsigned long *registers, unsigned params,
 		break;
 
 	default:
+		BUG();
 		return 0;
 	}
 
 	return 1;
 }
+
+/*
+ * handle the conditional loop part of the move-and-loop instructions
+ */
+static void misalignment_MOV_Lcc(struct pt_regs *regs, uint32_t opcode)
+{
+	unsigned long epsw = regs->epsw;
+	unsigned long NxorV;
+
+	kdebug("MOV_Lcc %x [flags=%lx]", opcode, epsw & 0xf);
+
+	/* calculate N^V and shift onto the same bit position as Z */
+	NxorV = ((epsw >> 3) ^ epsw >> 1) & 1;
+
+	switch (opcode & 0xf) {
+	case 0x0: /* MOV_LLT: N^V */
+		if (NxorV)
+			goto take_the_loop;
+		return;
+	case 0x1: /* MOV_LGT: ~(Z or (N^V))*/
+		if (!((epsw & EPSW_FLAG_Z) | NxorV))
+			goto take_the_loop;
+		return;
+	case 0x2: /* MOV_LGE: ~(N^V) */
+		if (!NxorV)
+			goto take_the_loop;
+		return;
+	case 0x3: /* MOV_LLE: Z or (N^V) */
+		if ((epsw & EPSW_FLAG_Z) | NxorV)
+			goto take_the_loop;
+		return;
+
+	case 0x4: /* MOV_LCS: C */
+		if (epsw & EPSW_FLAG_C)
+			goto take_the_loop;
+		return;
+	case 0x5: /* MOV_LHI: ~(C or Z) */
+		if (!(epsw & (EPSW_FLAG_C | EPSW_FLAG_Z)))
+			goto take_the_loop;
+		return;
+	case 0x6: /* MOV_LCC: ~C */
+		if (!(epsw & EPSW_FLAG_C))
+			goto take_the_loop;
+		return;
+	case 0x7: /* MOV_LLS: C or Z */
+		if (epsw & (EPSW_FLAG_C | EPSW_FLAG_Z))
+			goto take_the_loop;
+		return;
+
+	case 0x8: /* MOV_LEQ: Z */
+		if (epsw & EPSW_FLAG_Z)
+			goto take_the_loop;
+		return;
+	case 0x9: /* MOV_LNE: ~Z */
+		if (!(epsw & EPSW_FLAG_Z))
+			goto take_the_loop;
+		return;
+	case 0xa: /* MOV_LRA: always */
+		goto take_the_loop;
+
+	default:
+		BUG();
+	}
+
+take_the_loop:
+	/* wind the PC back to just after the SETLB insn */
+	kdebug("loop LAR=%lx", regs->lar);
+	regs->pc = regs->lar - 4;
+}
+
+/*
+ * misalignment handler tests
+ */
+#ifdef CONFIG_TEST_MISALIGNMENT_HANDLER
+static u8 __initdata testbuf[512] __attribute__((aligned(16))) = {
+	[257] = 0x11,
+	[258] = 0x22,
+	[259] = 0x33,
+	[260] = 0x44,
+};
+
+#define ASSERTCMP(X, OP, Y)						\
+do {									\
+	if (unlikely(!((X) OP (Y)))) {					\
+		printk(KERN_ERR "\n");					\
+		printk(KERN_ERR "MISALIGN: Assertion failed at line %u\n", \
+		       __LINE__);					\
+		printk(KERN_ERR "0x%lx " #OP " 0x%lx is false\n",	\
+		       (unsigned long)(X), (unsigned long)(Y));		\
+		BUG();							\
+	}								\
+} while(0)
+
+static int __init test_misalignment(void)
+{
+	register void *r asm("e0");
+	register u32 y asm("e1");
+	void *p = testbuf, *q;
+	u32 tmp, tmp2, x;
+
+	printk(KERN_NOTICE "==>test_misalignment() [testbuf=%p]\n", p);
+	p++;
+
+	printk(KERN_NOTICE "___ MOV (Am),Dn ___\n");
+	q = p + 256;
+	asm volatile("mov	(%0),%1" : "+a"(q), "=d"(x));
+	ASSERTCMP(q, ==, p + 256);
+	ASSERTCMP(x, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV (256,Am),Dn ___\n");
+	q = p;
+	asm volatile("mov	(256,%0),%1" : "+a"(q), "=d"(x));
+	ASSERTCMP(q, ==, p);
+	ASSERTCMP(x, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV (Di,Am),Dn ___\n");
+	tmp = 256;
+	q = p;
+	asm volatile("mov	(%2,%0),%1" : "+a"(q), "=d"(x), "+d"(tmp));
+	ASSERTCMP(q, ==, p);
+	ASSERTCMP(x, ==, 0x44332211);
+	ASSERTCMP(tmp, ==, 256);
+
+	printk(KERN_NOTICE "___ MOV (256,Rm),Rn ___\n");
+	r = p;
+	asm volatile("mov	(256,%0),%1" : "+r"(r), "=r"(y));
+	ASSERTCMP(r, ==, p);
+	ASSERTCMP(y, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV (Rm+),Rn ___\n");
+	r = p + 256;
+	asm volatile("mov	(%0+),%1" : "+r"(r), "=r"(y));
+	ASSERTCMP(r, ==, p + 256 + 4);
+	ASSERTCMP(y, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV (Rm+,8),Rn ___\n");
+	r = p + 256;
+	asm volatile("mov	(%0+,8),%1" : "+r"(r), "=r"(y));
+	ASSERTCMP(r, ==, p + 256 + 8);
+	ASSERTCMP(y, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV (7,SP),Rn ___\n");
+	asm volatile(
+		"add	-16,sp		\n"
+		"mov	+0x11,%0	\n"
+		"movbu	%0,(7,sp)	\n"
+		"mov	+0x22,%0	\n"
+		"movbu	%0,(8,sp)	\n"
+		"mov	+0x33,%0	\n"
+		"movbu	%0,(9,sp)	\n"
+		"mov	+0x44,%0	\n"
+		"movbu	%0,(10,sp)	\n"
+		"mov	(7,sp),%1	\n"
+		"add	+16,sp		\n"
+		: "+a"(q), "=d"(x));
+	ASSERTCMP(x, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV (259,SP),Rn ___\n");
+	asm volatile(
+		"add	-264,sp		\n"
+		"mov	+0x11,%0	\n"
+		"movbu	%0,(259,sp)	\n"
+		"mov	+0x22,%0	\n"
+		"movbu	%0,(260,sp)	\n"
+		"mov	+0x33,%0	\n"
+		"movbu	%0,(261,sp)	\n"
+		"mov	+0x55,%0	\n"
+		"movbu	%0,(262,sp)	\n"
+		"mov	(259,sp),%1	\n"
+		"add	+264,sp		\n"
+		: "+d"(tmp), "=d"(x));
+	ASSERTCMP(x, ==, 0x55332211);
+
+	printk(KERN_NOTICE "___ MOV (260,SP),Rn ___\n");
+	asm volatile(
+		"add	-264,sp		\n"
+		"mov	+0x11,%0	\n"
+		"movbu	%0,(260,sp)	\n"
+		"mov	+0x22,%0	\n"
+		"movbu	%0,(261,sp)	\n"
+		"mov	+0x33,%0	\n"
+		"movbu	%0,(262,sp)	\n"
+		"mov	+0x55,%0	\n"
+		"movbu	%0,(263,sp)	\n"
+		"mov	(260,sp),%1	\n"
+		"add	+264,sp		\n"
+		: "+d"(tmp), "=d"(x));
+	ASSERTCMP(x, ==, 0x55332211);
+
+
+	printk(KERN_NOTICE "___ MOV_LNE ___\n");
+	tmp = 1;
+	tmp2 = 2;
+	q = p + 256;
+	asm volatile(
+		"setlb			\n"
+		"mov	%2,%3		\n"
+		"mov	%1,%2		\n"
+		"cmp	+0,%1		\n"
+		"mov_lne	(%0+,4),%1"
+		: "+r"(q), "+d"(tmp), "+d"(tmp2), "=d"(x)
+		:
+		: "cc");
+	ASSERTCMP(q, ==, p + 256 + 12);
+	ASSERTCMP(x, ==, 0x44332211);
+
+	printk(KERN_NOTICE "___ MOV in SETLB ___\n");
+	tmp = 1;
+	tmp2 = 2;
+	q = p + 256;
+	asm volatile(
+		"setlb			\n"
+		"mov	%1,%3		\n"
+		"mov	(%0+),%1	\n"
+		"cmp	+0,%1		\n"
+		"lne			"
+		: "+a"(q), "+d"(tmp), "+d"(tmp2), "=d"(x)
+		:
+		: "cc");
+
+	ASSERTCMP(q, ==, p + 256 + 8);
+	ASSERTCMP(x, ==, 0x44332211);
+
+	printk(KERN_NOTICE "<==test_misalignment()\n");
+	return 0;
+}
+
+arch_initcall(test_misalignment);
+
+#endif /* CONFIG_TEST_MISALIGNMENT_HANDLER */