Merge branch 'master' into percpu

Conflicts:
	arch/powerpc/platforms/pseries/hvCall.S
	include/linux/percpu.h

20 files changed, 120 insertions, 194 deletions

diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index c41234f1b82..3a9319f93e8 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -11,6 +11,9 @@ config M32R
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select INIT_ALL_POSSIBLE
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZMA
 
 config SBUS
 	bool
diff --git a/arch/m32r/boot/compressed/Makefile b/arch/m32r/boot/compressed/Makefile
index 560484ae35e..177716b1d61 100644
--- a/arch/m32r/boot/compressed/Makefile
+++ b/arch/m32r/boot/compressed/Makefile
@@ -1,11 +1,11 @@
 #
-# linux/arch/sh/boot/compressed/Makefile
+# linux/arch/m32r/boot/compressed/Makefile
 #
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o \
-		   piggy.o vmlinux.lds
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+		   vmlinux.bin.lzma head.o misc.o piggy.o vmlinux.lds
 
 OBJECTS = $(obj)/head.o $(obj)/misc.o
 
@@ -27,6 +27,12 @@ $(obj)/vmlinux.bin: vmlinux FORCE
 $(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,gzip)
 
+$(obj)/vmlinux.bin.bz2: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,bzip2)
+
+$(obj)/vmlinux.bin.lzma: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,lzma)
+
 CFLAGS_misc.o += -fpic
 
 ifdef CONFIG_MMU
@@ -37,5 +43,9 @@ endif
 
 OBJCOPYFLAGS += -R .empty_zero_page
 
-$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
+suffix_$(CONFIG_KERNEL_GZIP)	= gz
+suffix_$(CONFIG_KERNEL_BZIP2)	= bz2
+suffix_$(CONFIG_KERNEL_LZMA)	= lzma
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
 	$(call if_changed,ld)
diff --git a/arch/m32r/boot/compressed/misc.c b/arch/m32r/boot/compressed/misc.c
index d394292498c..370d6088197 100644
--- a/arch/m32r/boot/compressed/misc.c
+++ b/arch/m32r/boot/compressed/misc.c
@@ -9,140 +9,49 @@
  * Adapted for SH by Stuart Menefy, Aug 1999
  *
  * 2003-02-12:	Support M32R by Takeo Takahashi
- * 		This is based on arch/sh/boot/compressed/misc.c.
  */
 
-#include <linux/string.h>
-
 /*
  * gzip declarations
  */
-
-#define OF(args)  args
 #define STATIC static
 
 #undef memset
 #undef memcpy
 #define memzero(s, n)     memset ((s), 0, (n))
 
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-				/* and a power of two */
-
-static uch *inbuf;	     /* input buffer */
-static uch window[WSIZE];    /* Sliding window buffer */
-
-static unsigned insize = 0;  /* valid bytes in inbuf */
-static unsigned inptr = 0;   /* index of next byte to be processed in inbuf */
-static unsigned outcnt = 0;  /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
-#define RESERVED     0xC0 /* bit 6,7:   reserved */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-static int  fill_inbuf(void);
-static void flush_window(void);
 static void error(char *m);
 
-static unsigned char *input_data;
-static int input_len;
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-
 #include "m32r_sio.c"
 
 static unsigned long free_mem_ptr;
 static unsigned long free_mem_end_ptr;
 
-#define HEAP_SIZE             0x10000
-
-#include "../../../../lib/inflate.c"
-
-void* memset(void* s, int c, size_t n)
+#ifdef CONFIG_KERNEL_BZIP2
+static void *memset(void *s, int c, size_t n)
 {
-	int i;
-	char *ss = (char*)s;
+	char *ss = s;
 
-	for (i=0;i<n;i++) ss[i] = c;
+	while (n--)
+	       	*ss++ = c;
 	return s;
 }
+#endif
 
-void* memcpy(void* __dest, __const void* __src,
-			    size_t __n)
-{
-	int i;
-	char *d = (char *)__dest, *s = (char *)__src;
-
-	for (i=0;i<__n;i++) d[i] = s[i];
-	return __dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
-	if (insize != 0) {
-		error("ran out of input data");
-	}
-
-	inbuf = input_data;
-	insize = input_len;
-	inptr = 1;
-	return inbuf[0];
-}
+#ifdef CONFIG_KERNEL_GZIP
+#define BOOT_HEAP_SIZE             0x10000
+#include "../../../../lib/decompress_inflate.c"
+#endif
 
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
-    ulg c = crc;         /* temporary variable */
-    unsigned n;
-    uch *in, *out, ch;
+#ifdef CONFIG_KERNEL_BZIP2
+#define BOOT_HEAP_SIZE             0x400000
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
 
-    in = window;
-    out = &output_data[output_ptr];
-    for (n = 0; n < outcnt; n++) {
-	    ch = *out++ = *in++;
-	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-    }
-    crc = c;
-    bytes_out += (ulg)outcnt;
-    output_ptr += (ulg)outcnt;
-    outcnt = 0;
-}
+#ifdef CONFIG_KERNEL_LZMA
+#define BOOT_HEAP_SIZE             0x10000
+#include "../../../../lib/decompress_unlzma.c"
+#endif
 
 static void error(char *x)
 {
@@ -153,20 +62,20 @@ static void error(char *x)
 	while(1);	/* Halt */
 }
 
-/* return decompressed size */
 void
 decompress_kernel(int mmu_on, unsigned char *zimage_data,
 		  unsigned int zimage_len, unsigned long heap)
 {
+	unsigned char *input_data = zimage_data;
+	int input_len = zimage_len;
+	unsigned char *output_data;
+
 	output_data = (unsigned char *)CONFIG_MEMORY_START + 0x2000
 		+ (mmu_on ? 0x80000000 : 0);
 	free_mem_ptr = heap;
-	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-	input_data = zimage_data;
-	input_len = zimage_len;
+	free_mem_end_ptr = free_mem_ptr + BOOT_HEAP_SIZE;
 
-	makecrc();
-	puts("Uncompressing Linux... ");
-	gunzip();
-	puts("Ok, booting the kernel.\n");
+	puts("\nDecompressing Linux... ");
+	decompress(input_data, input_len, NULL, NULL, output_data, NULL, error);
+	puts("done.\nBooting the kernel.\n");
 }
diff --git a/arch/m32r/include/asm/cacheflush.h b/arch/m32r/include/asm/cacheflush.h
index 78587c95814..8e8e04516c3 100644
--- a/arch/m32r/include/asm/cacheflush.h
+++ b/arch/m32r/include/asm/cacheflush.h
@@ -12,6 +12,7 @@ extern void _flush_cache_copyback_all(void);
 #define flush_cache_dup_mm(mm)			do { } while (0)
 #define flush_cache_range(vma, start, end)	do { } while (0)
 #define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 #define flush_dcache_page(page)			do { } while (0)
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
@@ -33,6 +34,7 @@ extern void smp_flush_cache_all(void);
 #define flush_cache_dup_mm(mm)			do { } while (0)
 #define flush_cache_range(vma, start, end)	do { } while (0)
 #define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 #define flush_dcache_page(page)			do { } while (0)
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
@@ -46,6 +48,7 @@ extern void smp_flush_cache_all(void);
 #define flush_cache_dup_mm(mm)			do { } while (0)
 #define flush_cache_range(vma, start, end)	do { } while (0)
 #define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
 #define flush_dcache_page(page)			do { } while (0)
 #define flush_dcache_mmap_lock(mapping)		do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)	do { } while (0)
diff --git a/arch/m32r/include/asm/elf.h b/arch/m32r/include/asm/elf.h
index 0cc34c94bf2..2f85412ef73 100644
--- a/arch/m32r/include/asm/elf.h
+++ b/arch/m32r/include/asm/elf.h
@@ -102,7 +102,6 @@ typedef elf_fpreg_t elf_fpregset_t;
  */
 #define ELF_PLAT_INIT(_r, load_addr)	(_r)->r0 = 0
 
-#define USE_ELF_CORE_DUMP
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
 /*
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index d06933bd631..4010f1fc5b6 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -162,6 +162,13 @@ static inline void _writel(unsigned long l, unsigned long addr)
 #define __raw_writew writew
 #define __raw_writel writel
 
+#define ioread8 read
+#define ioread16 readw
+#define ioread32 readl
+#define iowrite8 writeb
+#define iowrite16 writew
+#define iowrite32 writel
+
 #define mmiowb()
 
 #define flush_write_buffers() do { } while (0)  /* M32R_FIXME */
diff --git a/arch/m32r/include/asm/socket.h b/arch/m32r/include/asm/socket.h
index 3390a864f22..469787c3009 100644
--- a/arch/m32r/include/asm/socket.h
+++ b/arch/m32r/include/asm/socket.h
@@ -60,4 +60,6 @@
 #define SO_PROTOCOL		38
 #define SO_DOMAIN		39
 
+#define SO_RXQ_OVFL             40
+
 #endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h
index dded923883b..179a06489b1 100644
--- a/arch/m32r/include/asm/spinlock.h
+++ b/arch/m32r/include/asm/spinlock.h
@@ -24,19 +24,19 @@
  * We make no fairness assumptions. They have a cost.
  */
 
-#define __raw_spin_is_locked(x)		(*(volatile int *)(&(x)->slock) <= 0)
-#define __raw_spin_lock_flags(lock, flags) __raw_spin_lock(lock)
-#define __raw_spin_unlock_wait(x) \
-		do { cpu_relax(); } while (__raw_spin_is_locked(x))
+#define arch_spin_is_locked(x)		(*(volatile int *)(&(x)->slock) <= 0)
+#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
+#define arch_spin_unlock_wait(x) \
+		do { cpu_relax(); } while (arch_spin_is_locked(x))
 
 /**
- * __raw_spin_trylock - Try spin lock and return a result
+ * arch_spin_trylock - Try spin lock and return a result
  * @lock: Pointer to the lock variable
  *
- * __raw_spin_trylock() tries to get the lock and returns a result.
+ * arch_spin_trylock() tries to get the lock and returns a result.
  * On the m32r, the result value is 1 (= Success) or 0 (= Failure).
  */
-static inline int __raw_spin_trylock(raw_spinlock_t *lock)
+static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	int oldval;
 	unsigned long tmp1, tmp2;
@@ -50,7 +50,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 	 * }
 	 */
 	__asm__ __volatile__ (
-		"# __raw_spin_trylock		\n\t"
+		"# arch_spin_trylock		\n\t"
 		"ldi	%1, #0;			\n\t"
 		"mvfc	%2, psw;		\n\t"
 		"clrpsw	#0x40 -> nop;		\n\t"
@@ -69,7 +69,7 @@ static inline int __raw_spin_trylock(raw_spinlock_t *lock)
 	return (oldval > 0);
 }
 
-static inline void __raw_spin_lock(raw_spinlock_t *lock)
+static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned long tmp0, tmp1;
 
@@ -84,7 +84,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 	 * }
 	 */
 	__asm__ __volatile__ (
-		"# __raw_spin_lock		\n\t"
+		"# arch_spin_lock		\n\t"
 		".fillinsn			\n"
 		"1:				\n\t"
 		"mvfc	%1, psw;		\n\t"
@@ -111,7 +111,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 	);
 }
 
-static inline void __raw_spin_unlock(raw_spinlock_t *lock)
+static inline void arch_spin_unlock(arch_spinlock_t *lock)
 {
 	mb();
 	lock->slock = 1;
@@ -140,15 +140,15 @@ static inline void __raw_spin_unlock(raw_spinlock_t *lock)
  * read_can_lock - would read_trylock() succeed?
  * @lock: the rwlock in question.
  */
-#define __raw_read_can_lock(x) ((int)(x)->lock > 0)
+#define arch_read_can_lock(x) ((int)(x)->lock > 0)
 
 /**
  * write_can_lock - would write_trylock() succeed?
  * @lock: the rwlock in question.
  */
-#define __raw_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
+#define arch_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
 
-static inline void __raw_read_lock(raw_rwlock_t *rw)
+static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp0, tmp1;
 
@@ -199,7 +199,7 @@ static inline void __raw_read_lock(raw_rwlock_t *rw)
 	);
 }
 
-static inline void __raw_write_lock(raw_rwlock_t *rw)
+static inline void arch_write_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp0, tmp1, tmp2;
 
@@ -252,7 +252,7 @@ static inline void __raw_write_lock(raw_rwlock_t *rw)
 	);
 }
 
-static inline void __raw_read_unlock(raw_rwlock_t *rw)
+static inline void arch_read_unlock(arch_rwlock_t *rw)
 {
 	unsigned long tmp0, tmp1;
 
@@ -274,7 +274,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw)
 	);
 }
 
-static inline void __raw_write_unlock(raw_rwlock_t *rw)
+static inline void arch_write_unlock(arch_rwlock_t *rw)
 {
 	unsigned long tmp0, tmp1, tmp2;
 
@@ -298,7 +298,7 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
 	);
 }
 
-static inline int __raw_read_trylock(raw_rwlock_t *lock)
+static inline int arch_read_trylock(arch_rwlock_t *lock)
 {
 	atomic_t *count = (atomic_t*)lock;
 	if (atomic_dec_return(count) >= 0)
@@ -307,7 +307,7 @@ static inline int __raw_read_trylock(raw_rwlock_t *lock)
 	return 0;
 }
 
-static inline int __raw_write_trylock(raw_rwlock_t *lock)
+static inline int arch_write_trylock(arch_rwlock_t *lock)
 {
 	atomic_t *count = (atomic_t *)lock;
 	if (atomic_sub_and_test(RW_LOCK_BIAS, count))
@@ -316,11 +316,11 @@ static inline int __raw_write_trylock(raw_rwlock_t *lock)
 	return 0;
 }
 
-#define __raw_read_lock_flags(lock, flags) __raw_read_lock(lock)
-#define __raw_write_lock_flags(lock, flags) __raw_write_lock(lock)
+#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
+#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
 
-#define _raw_spin_relax(lock)	cpu_relax()
-#define _raw_read_relax(lock)	cpu_relax()
-#define _raw_write_relax(lock)	cpu_relax()
+#define arch_spin_relax(lock)	cpu_relax()
+#define arch_read_relax(lock)	cpu_relax()
+#define arch_write_relax(lock)	cpu_relax()
 
 #endif	/* _ASM_M32R_SPINLOCK_H */
diff --git a/arch/m32r/include/asm/spinlock_types.h b/arch/m32r/include/asm/spinlock_types.h
index 83f52105c0e..92e27672661 100644
--- a/arch/m32r/include/asm/spinlock_types.h
+++ b/arch/m32r/include/asm/spinlock_types.h
@@ -7,17 +7,17 @@
 
 typedef struct {
 	volatile int slock;
-} raw_spinlock_t;
+} arch_spinlock_t;
 
-#define __RAW_SPIN_LOCK_UNLOCKED	{ 1 }
+#define __ARCH_SPIN_LOCK_UNLOCKED	{ 1 }
 
 typedef struct {
 	volatile int lock;
-} raw_rwlock_t;
+} arch_rwlock_t;
 
 #define RW_LOCK_BIAS			0x01000000
 #define RW_LOCK_BIAS_STR		"0x01000000"
 
-#define __RAW_RW_LOCK_UNLOCKED		{ RW_LOCK_BIAS }
+#define __ARCH_RW_LOCK_UNLOCKED		{ RW_LOCK_BIAS }
 
 #endif /* _ASM_M32R_SPINLOCK_TYPES_H */
diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c
index 8dfd31e87c4..3c71f776872 100644
--- a/arch/m32r/kernel/irq.c
+++ b/arch/m32r/kernel/irq.c
@@ -40,7 +40,7 @@ int show_interrupts(struct seq_file *p, void *v)
 	}
 
 	if (i < NR_IRQS) {
-		spin_lock_irqsave(&irq_desc[i].lock, flags);
+		raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
 		action = irq_desc[i].action;
 		if (!action)
 			goto skip;
@@ -59,7 +59,7 @@ int show_interrupts(struct seq_file *p, void *v)
 
 		seq_putc(p, '\n');
 skip:
-		spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+		raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
 	}
 	return 0;
 }
diff --git a/arch/m32r/kernel/m32r_ksyms.c b/arch/m32r/kernel/m32r_ksyms.c
index 22624b51d4d..700570747a9 100644
--- a/arch/m32r/kernel/m32r_ksyms.c
+++ b/arch/m32r/kernel/m32r_ksyms.c
@@ -23,12 +23,6 @@ EXPORT_SYMBOL(__ioremap);
 EXPORT_SYMBOL(iounmap);
 EXPORT_SYMBOL(kernel_thread);
 
-/* Networking helper routines. */
-/* Delay loops */
-EXPORT_SYMBOL(__udelay);
-EXPORT_SYMBOL(__delay);
-EXPORT_SYMBOL(__const_udelay);
-
 EXPORT_SYMBOL(strncpy_from_user);
 EXPORT_SYMBOL(__strncpy_from_user);
 EXPORT_SYMBOL(clear_user);
diff --git a/arch/m32r/kernel/smp.c b/arch/m32r/kernel/smp.c
index 1b7598e6f6e..31cef20b299 100644
--- a/arch/m32r/kernel/smp.c
+++ b/arch/m32r/kernel/smp.c
@@ -17,6 +17,7 @@
 
 #include <linux/irq.h>
 #include <linux/interrupt.h>
+#include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -805,7 +806,7 @@ unsigned long send_IPI_mask_phys(cpumask_t physid_mask, int ipi_num,
 
 	if (mask & ~physids_coerce(phys_cpu_present_map))
 		BUG();
-	if (ipi_num >= NR_IPIS)
+	if (ipi_num >= NR_IPIS || ipi_num < 0)
 		BUG();
 
 	mask <<= IPI_SHIFT;
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index 305ac852bbe..d3c865c5a6b 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -76,30 +76,6 @@ asmlinkage int sys_tas(int __user *addr)
 	return oldval;
 }
 
-asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
-	unsigned long prot, unsigned long flags,
-	unsigned long fd, unsigned long pgoff)
-{
-	int error = -EBADF;
-	struct file *file = NULL;
-
-	flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
-	if (!(flags & MAP_ANONYMOUS)) {
-		file = fget(fd);
-		if (!file)
-			goto out;
-	}
-
-	down_write(&current->mm->mmap_sem);
-	error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
-	up_write(&current->mm->mmap_sem);
-
-	if (file)
-		fput(file);
-out:
-	return error;
-}
-
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls..
  *
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index aa3bf4cfab3..60536e27123 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -191,7 +191,7 @@ ENTRY(sys_call_table)
 	.long sys_ni_syscall		/* streams2 */
 	.long sys_vfork			/* 190 */
 	.long sys_getrlimit
-	.long sys_mmap2
+	.long sys_mmap_pgoff
 	.long sys_truncate64
 	.long sys_ftruncate64
 	.long sys_stat64		/* 195 */
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index ba61c4c7320..9cedcef1157 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -33,6 +33,15 @@
 
 #include <asm/hw_irq.h>
 
+#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE)
+/* this needs a better home */
+DEFINE_SPINLOCK(rtc_lock);
+
+#ifdef CONFIG_RTC_DRV_CMOS_MODULE
+EXPORT_SYMBOL(rtc_lock);
+#endif
+#endif  /* pc-style 'CMOS' RTC support */
+
 #ifdef CONFIG_SMP
 extern void smp_local_timer_interrupt(void);
 #endif
@@ -66,7 +75,7 @@ u32 arch_gettimeoffset(void)
 		count = 0;
 
 	count = (latch - count) * TICK_SIZE;
-	elapsed_time = (count + latch / 2) / latch;
+	elapsed_time = DIV_ROUND_CLOSEST(count, latch);
 	/* NOTE: LATCH is equal to the "interval" value (= reload count). */
 
 #else /* CONFIG_SMP */
@@ -84,7 +93,7 @@ u32 arch_gettimeoffset(void)
 	p_count = count;
 
 	count = (latch - count) * TICK_SIZE;
-	elapsed_time = (count + latch / 2) / latch;
+	elapsed_time = DIV_ROUND_CLOSEST(count, latch);
 	/* NOTE: LATCH is equal to the "interval" value (= reload count). */
 #endif /* CONFIG_SMP */
 #elif defined(CONFIG_CHIP_M32310)
@@ -202,7 +211,7 @@ void __init time_init(void)
 
 		bus_clock = boot_cpu_data.bus_clock;
 		divide = boot_cpu_data.timer_divide;
-		latch = (bus_clock/divide + HZ / 2) / HZ;
+		latch = DIV_ROUND_CLOSEST(bus_clock/divide, HZ);
 
 		printk("Timer start : latch = %ld\n", latch);
 
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 03b14e55cd8..fbd109031df 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -104,8 +104,8 @@ static void set_eit_vector_entries(void)
 	eit_vector[186] = (unsigned long)smp_call_function_interrupt;
 	eit_vector[187] = (unsigned long)smp_ipi_timer_interrupt;
 	eit_vector[188] = (unsigned long)smp_flush_cache_all_interrupt;
-	eit_vector[189] = (unsigned long)smp_call_function_single_interrupt;
-	eit_vector[190] = 0;
+	eit_vector[189] = 0;	/* CPU_BOOT_IPI */
+	eit_vector[190] = (unsigned long)smp_call_function_single_interrupt;
 	eit_vector[191] = 0;
 #endif
 	_flush_cache_copyback_all();
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index 8ceb6181d80..7da94eaa082 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -42,6 +42,8 @@ SECTIONS
   _etext = .;			/* End of text section */
 
   EXCEPTION_TABLE(16)
+  NOTES
+
   RODATA
   RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
   _edata = .;			/* End of data section */
diff --git a/arch/m32r/lib/delay.c b/arch/m32r/lib/delay.c
index ced549be80f..940f4837e42 100644
--- a/arch/m32r/lib/delay.c
+++ b/arch/m32r/lib/delay.c
@@ -122,4 +122,8 @@ void __ndelay(unsigned long nsecs)
 {
 	__const_udelay(nsecs * 0x00005);  /* 2**32 / 1000000000 (rounded up) */
 }
+
+EXPORT_SYMBOL(__delay);
+EXPORT_SYMBOL(__const_udelay);
+EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__ndelay);
diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c
index b7a78ad429b..5d2858f6eed 100644
--- a/arch/m32r/mm/discontig.c
+++ b/arch/m32r/mm/discontig.c
@@ -32,6 +32,9 @@ typedef struct {
 } mem_prof_t;
 static mem_prof_t mem_prof[MAX_NUMNODES];
 
+extern unsigned long memory_start;
+extern unsigned long memory_end;
+
 static void __init mem_prof_init(void)
 {
 	unsigned long start_pfn, holes, free_pfn;
@@ -42,7 +45,7 @@ static void __init mem_prof_init(void)
 	/* Node#0 SDRAM */
 	mp = &mem_prof[0];
 	mp->start_pfn = PFN_UP(CONFIG_MEMORY_START);
-	mp->pages = PFN_DOWN(CONFIG_MEMORY_SIZE);
+	mp->pages = PFN_DOWN(memory_end - memory_start);
 	mp->holes = 0;
 	mp->free_pfn = PFN_UP(__pa(_end));
 
diff --git a/arch/m32r/mm/mmu.S b/arch/m32r/mm/mmu.S
index 49a6d16a3d5..e9491a5ae82 100644
--- a/arch/m32r/mm/mmu.S
+++ b/arch/m32r/mm/mmu.S
@@ -150,9 +150,13 @@ ENTRY(tme_handler)
 
 	; pmd = pmd_offset(pgd, address);
 	ld	r3, @r3			; r3: pmd data
-	ldi	r2, #-4096
 	beqz	r3, 3f			; pmd_none(*pmd) ?
 
+	and3	r2, r3, #0xfff
+	add3	r2, r2, #-355		; _KERNPG_TABLE(=0x163)
+	bnez	r2, 3f			; pmd_bad(*pmd) ?
+	ldi	r2, #-4096
+
 	; pte = pte_offset(pmd, address);
 	and	r2, r3			; r2: pte base addr
 	srl3	r3, r0, #10
@@ -263,9 +267,9 @@ ENTRY(tme_handler)
 	ld	r1, @r3			; r1: pmd
 	beqz	r1, 3f			; pmd_none(*pmd) ?
 ;
-	and3	r1, r1, #0xeff
-	ldi	r4, #611		; _KERNPG_TABLE(=611)
-	bne	r1, r4, 3f		; !pmd_bad(*pmd) ?
+	and3	r1, r1, #0x3ff
+	ldi	r4, #0x163		; _KERNPG_TABLE(=0x163)
+	bne	r1, r4, 3f		; pmd_bad(*pmd) ?
 
 	.fillinsn
 4: