Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (29 commits)
  sh: enable maple_keyb in dreamcast_defconfig.
  SH2(A) cache update
  nommu: Provide vmalloc_exec().
  add addrespace definition for sh2a.
  sh: Kill off ARCH_SUPPORTS_AOUT and remnants of a.out support.
  sh: define GENERIC_HARDIRQS_NO__DO_IRQ.
  sh: define GENERIC_LOCKBREAK.
  sh: Save NUMA node data in vmcore for crash dumps.
  sh: module_alloc() should be using vmalloc_exec().
  sh: Fix up __bug_table handling in module loader.
  sh: Add documentation and integrate into docbook build.
  sh: Fix up broken kerneldoc comments.
  maple: Kill useless private_data pointer.
  maple: Clean up maple_driver_register/unregister routines.
  input: Clean up maple keyboard driver
  maple: allow removal and reinsertion of keyboard driver module
  sh: /proc/asids depends on MMU.
  arch/sh/boards/mach-se/7343/irq.c: removed duplicated #include
  arch/sh/boards/board-ap325rxa.c: removed duplicated #include
  sh/boards/Makefile typo fix
  ...

39 files changed, 854 insertions, 510 deletions

diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile
index 0eb0d027eb3..1d1b34500b6 100644
--- a/Documentation/DocBook/Makefile
+++ b/Documentation/DocBook/Makefile
@@ -12,7 +12,7 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
 	    kernel-api.xml filesystems.xml lsm.xml usb.xml kgdb.xml \
 	    gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
 	    genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \
-	    mac80211.xml debugobjects.xml
+	    mac80211.xml debugobjects.xml sh.xml
 
 ###
 # The build process is as follows (targets):
diff --git a/Documentation/DocBook/sh.tmpl b/Documentation/DocBook/sh.tmpl
new file mode 100644
index 00000000000..0c3dc4c69dd
--- /dev/null
+++ b/Documentation/DocBook/sh.tmpl
@@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+	"http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" []>
+
+<book id="sh-drivers">
+ <bookinfo>
+  <title>SuperH Interfaces Guide</title>
+  
+  <authorgroup>
+   <author>
+    <firstname>Paul</firstname>
+    <surname>Mundt</surname>
+    <affiliation>
+     <address>
+      <email>lethal@linux-sh.org</email>
+     </address>
+    </affiliation>
+   </author>
+  </authorgroup>
+
+  <copyright>
+   <year>2008</year>
+   <holder>Paul Mundt</holder>
+  </copyright>
+  <copyright>
+   <year>2008</year>
+   <holder>Renesas Technology Corp.</holder>
+  </copyright>
+
+  <legalnotice>
+   <para>
+     This documentation is free software; you can redistribute
+     it and/or modify it under the terms of the GNU General Public
+     License version 2 as published by the Free Software Foundation.
+   </para>
+      
+   <para>
+     This program is distributed in the hope that it will be
+     useful, but WITHOUT ANY WARRANTY; without even the implied
+     warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+     See the GNU General Public License for more details.
+   </para>
+      
+   <para>
+     You should have received a copy of the GNU General Public
+     License along with this program; if not, write to the Free
+     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+     MA 02111-1307 USA
+   </para>
+      
+   <para>
+     For more details see the file COPYING in the source
+     distribution of Linux.
+   </para>
+  </legalnotice>
+ </bookinfo>
+
+<toc></toc>
+
+  <chapter id="mm">
+    <title>Memory Management</title>
+    <sect1 id="sh4">
+    <title>SH-4</title>
+      <sect2 id="sq">
+        <title>Store Queue API</title>
+!Earch/sh/kernel/cpu/sh4/sq.c
+      </sect2>
+    </sect1>
+    <sect1 id="sh5">
+      <title>SH-5</title>
+      <sect2 id="tlb">
+	<title>TLB Interfaces</title>
+!Iarch/sh/mm/tlb-sh5.c
+!Iarch/sh/include/asm/tlb_64.h
+      </sect2>
+    </sect1>
+  </chapter>
+  <chapter id="clk">
+    <title>Clock Framework Extensions</title>
+!Iarch/sh/include/asm/clock.h
+  </chapter>
+  <chapter id="mach">
+    <title>Machine Specific Interfaces</title>
+    <sect1 id="dreamcast">
+      <title>mach-dreamcast</title>
+!Iarch/sh/boards/mach-dreamcast/rtc.c
+    </sect1>
+    <sect1 id="x3proto">
+      <title>mach-x3proto</title>
+!Earch/sh/boards/mach-x3proto/ilsel.c
+    </sect1>
+  </chapter>
+  <chapter id="busses">
+    <title>Busses</title>
+    <sect1 id="superhyway">
+      <title>SuperHyway</title>
+!Edrivers/sh/superhyway/superhyway.c
+    </sect1>
+
+    <sect1 id="maple">
+      <title>Maple</title>
+!Edrivers/sh/maple/maple.c
+    </sect1>
+  </chapter>
+</book>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index cb992c3d6b7..5131d50f851 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -48,6 +48,9 @@ config GENERIC_HWEIGHT
 config GENERIC_HARDIRQS
 	def_bool y
 
+config GENERIC_HARDIRQS_NO__DO_IRQ
+	def_bool y
+
 config GENERIC_IRQ_PROBE
 	def_bool y
 
@@ -63,6 +66,10 @@ config GENERIC_TIME
 config GENERIC_CLOCKEVENTS
 	def_bool n
 
+config GENERIC_LOCKBREAK
+	def_bool y
+	depends on SMP && PREEMPT
+
 config SYS_SUPPORTS_PM
 	bool
 
@@ -94,9 +101,6 @@ config ARCH_HAS_ILOG2_U64
 config ARCH_NO_VIRT_TO_BUS
 	def_bool y
 
-config ARCH_SUPPORTS_AOUT
-	def_bool y
-
 config IO_TRAPPED
 	bool
 
@@ -483,6 +487,23 @@ config CRASH_DUMP
 
 	  For more details see Documentation/kdump/kdump.txt
 
+config SECCOMP
+	bool "Enable seccomp to safely compute untrusted bytecode"
+	depends on PROC_FS
+	default y
+	help
+	  This kernel feature is useful for number crunching applications
+	  that may need to compute untrusted bytecode during their
+	  execution. By using pipes or other transports made available to
+	  the process as file descriptors supporting the read/write
+	  syscalls, it's possible to isolate those applications in
+	  their own address space using seccomp. Once seccomp is
+	  enabled via prctl, it cannot be disabled and the task is only
+	  allowed to execute a few safe syscalls defined by each seccomp
+	  mode.
+
+	  If unsure, say N.
+
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on SYS_SUPPORTS_SMP
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 36f4b1f7066..4d2d102e00d 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -182,7 +182,7 @@ if SUPERH64
 
 config SH64_PROC_ASIDS
 	bool "Debug: report ASIDs through /proc/asids"
-	depends on PROC_FS
+	depends on PROC_FS && MMU
 
 config SH64_SR_WATCH
 	bool "Debug: set SR.WATCH to enable hardware watchpoints and trace"
diff --git a/arch/sh/Makefile b/arch/sh/Makefile
index 25659ce74ba..01d85c74481 100644
--- a/arch/sh/Makefile
+++ b/arch/sh/Makefile
@@ -95,8 +95,6 @@ head-y			:= arch/sh/kernel/init_task.o
 head-$(CONFIG_SUPERH32)	+= arch/sh/kernel/head_32.o
 head-$(CONFIG_SUPERH64)	+= arch/sh/kernel/head_64.o
 
-LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
-
 core-y				+= arch/sh/kernel/ arch/sh/mm/ arch/sh/boards/
 core-$(CONFIG_SH_FPU_EMU)	+= arch/sh/math-emu/
 
@@ -145,10 +143,6 @@ cpuincdir-$(CONFIG_CPU_SH4)	+= cpu-sh4
 cpuincdir-$(CONFIG_CPU_SH5)	+= cpu-sh5
 cpuincdir-y			+= cpu-common	# Must be last
 
-libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)
-libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)
-libs-y				+= $(LIBGCC)
-
 drivers-y			+= arch/sh/drivers/
 drivers-$(CONFIG_OPROFILE)	+= arch/sh/oprofile/
 
@@ -161,10 +155,16 @@ KBUILD_CFLAGS		+= -pipe $(cflags-y)
 KBUILD_CPPFLAGS		+= $(cflags-y)
 KBUILD_AFLAGS		+= $(cflags-y)
 
+LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
+
+libs-$(CONFIG_SUPERH32)		:= arch/sh/lib/	$(libs-y)
+libs-$(CONFIG_SUPERH64)		:= arch/sh/lib64/ $(libs-y)
+libs-y				+= $(LIBGCC)
+
 PHONY += maketools FORCE
 
 maketools:  include/linux/version.h FORCE
-	$(Q)$(MAKE) $(build)=arch/sh/tools arch/sh/include/asm/machtypes.h
+	$(Q)$(MAKE) $(build)=arch/sh/tools include/asm-sh/machtypes.h
 
 all: $(KBUILD_IMAGE)
 
@@ -215,4 +215,4 @@ arch/sh/lib64/syscalltab.h: arch/sh/kernel/syscalls_64.S
 	$(call filechk,gen-syscalltab)
 
 CLEAN_FILES += arch/sh/lib64/syscalltab.h \
-	       arch/sh/include/asm/machtypes.h
+	       include/asm-sh/machtypes.h
diff --git a/arch/sh/boards/Makefile b/arch/sh/boards/Makefile
index ff9b93c5a91..463022c7df3 100644
--- a/arch/sh/boards/Makefile
+++ b/arch/sh/boards/Makefile
@@ -5,4 +5,4 @@ obj-$(CONFIG_SH_AP325RXA)	+= board-ap325rxa.o
 obj-$(CONFIG_SH_MAGIC_PANEL_R2)	+= board-magicpanelr2.o
 obj-$(CONFIG_SH_RSK7203)	+= board-rsk7203.o
 obj-$(CONFIG_SH_SH7785LCR)	+= board-sh7785lcr.o
-obj-$(CONFIG_SH_SHMIN)		+= board-shmin..o
+obj-$(CONFIG_SH_SHMIN)		+= board-shmin.o
diff --git a/arch/sh/boards/board-ap325rxa.c b/arch/sh/boards/board-ap325rxa.c
index 9c71603d29a..025d4fe55a5 100644
--- a/arch/sh/boards/board-ap325rxa.c
+++ b/arch/sh/boards/board-ap325rxa.c
@@ -17,7 +17,6 @@
 #include <linux/mtd/physmap.h>
 #include <linux/delay.h>
 #include <linux/i2c.h>
-#include <linux/delay.h>
 #include <linux/smc911x.h>
 #include <media/soc_camera_platform.h>
 #include <media/sh_mobile_ceu.h>
diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c
index 5d96e2eef82..051c29d4eae 100644
--- a/arch/sh/boards/mach-se/7343/irq.c
+++ b/arch/sh/boards/mach-se/7343/irq.c
@@ -13,7 +13,6 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
-#include <linux/irq.h>
 #include <linux/io.h>
 #include <mach-se/mach/se7343.h>
 
diff --git a/arch/sh/configs/dreamcast_defconfig b/arch/sh/configs/dreamcast_defconfig
index d4075283956..3dc1cbd8a98 100644
--- a/arch/sh/configs/dreamcast_defconfig
+++ b/arch/sh/configs/dreamcast_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.26
-# Wed Jul 30 01:34:24 2008
+# Linux kernel version: 2.6.27-rc1
+# Mon Aug  4 16:49:13 2008
 #
 CONFIG_SUPERH=y
 CONFIG_SUPERH32=y
@@ -11,6 +11,7 @@ CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_FIND_NEXT_BIT=y
 CONFIG_GENERIC_HWEIGHT=y
 CONFIG_GENERIC_HARDIRQS=y
+CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ=y
 CONFIG_GENERIC_IRQ_PROBE=y
 CONFIG_GENERIC_CALIBRATE_DELAY=y
 CONFIG_GENERIC_TIME=y
@@ -21,7 +22,6 @@ CONFIG_LOCKDEP_SUPPORT=y
 # CONFIG_ARCH_HAS_ILOG2_U32 is not set
 # CONFIG_ARCH_HAS_ILOG2_U64 is not set
 CONFIG_ARCH_NO_VIRT_TO_BUS=y
-CONFIG_ARCH_SUPPORTS_AOUT=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 
 #
@@ -87,6 +87,7 @@ CONFIG_HAVE_OPROFILE=y
 # CONFIG_USE_GENERIC_SMP_HELPERS is not set
 CONFIG_HAVE_CLK=y
 CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
 CONFIG_SLABINFO=y
 CONFIG_RT_MUTEXES=y
 # CONFIG_TINY_SHMEM is not set
@@ -284,6 +285,7 @@ CONFIG_HZ=250
 # CONFIG_SCHED_HRTICK is not set
 # CONFIG_KEXEC is not set
 # CONFIG_CRASH_DUMP is not set
+CONFIG_SECCOMP=y
 # CONFIG_PREEMPT_NONE is not set
 # CONFIG_PREEMPT_VOLUNTARY is not set
 CONFIG_PREEMPT=y
@@ -317,10 +319,6 @@ CONFIG_PCI_LEGACY=y
 #
 CONFIG_BINFMT_ELF=y
 # CONFIG_BINFMT_MISC is not set
-
-#
-# Networking
-#
 CONFIG_NET=y
 
 #
@@ -555,7 +553,7 @@ CONFIG_INPUT_KEYBOARD=y
 # CONFIG_KEYBOARD_XTKBD is not set
 # CONFIG_KEYBOARD_NEWTON is not set
 # CONFIG_KEYBOARD_STOWAWAY is not set
-# CONFIG_KEYBOARD_MAPLE is not set
+CONFIG_KEYBOARD_MAPLE=y
 # CONFIG_KEYBOARD_SH_KEYSC is not set
 CONFIG_INPUT_MOUSE=y
 # CONFIG_MOUSE_PS2 is not set
diff --git a/arch/sh/include/asm/a.out.h b/arch/sh/include/asm/a.out.h
deleted file mode 100644
index 1f93130e179..00000000000
--- a/arch/sh/include/asm/a.out.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __ASM_SH_A_OUT_H
-#define __ASM_SH_A_OUT_H
-
-struct exec
-{
-  unsigned long a_info;		/* Use macros N_MAGIC, etc for access */
-  unsigned a_text;		/* length of text, in bytes */
-  unsigned a_data;		/* length of data, in bytes */
-  unsigned a_bss;		/* length of uninitialized data area for file, in bytes */
-  unsigned a_syms;		/* length of symbol table data in file, in bytes */
-  unsigned a_entry;		/* start address */
-  unsigned a_trsize;		/* length of relocation info for text, in bytes */
-  unsigned a_drsize;		/* length of relocation info for data, in bytes */
-};
-
-#define N_TRSIZE(a)	((a).a_trsize)
-#define N_DRSIZE(a)	((a).a_drsize)
-#define N_SYMSIZE(a)	((a).a_syms)
-
-#endif /* __ASM_SH_A_OUT_H */
diff --git a/arch/sh/include/asm/ptrace.h b/arch/sh/include/asm/ptrace.h
index 643ab5a7cf3..b86aeabba61 100644
--- a/arch/sh/include/asm/ptrace.h
+++ b/arch/sh/include/asm/ptrace.h
@@ -104,6 +104,15 @@ struct pt_dspregs {
 
 extern void show_regs(struct pt_regs *);
 
+/*
+ * These are defined as per linux/ptrace.h.
+ */
+struct task_struct;
+
+#define arch_has_single_step()	(1)
+extern void user_enable_single_step(struct task_struct *);
+extern void user_disable_single_step(struct task_struct *);
+
 #ifdef CONFIG_SH_DSP
 #define task_pt_regs(task) \
 	((struct pt_regs *) (task_stack_page(task) + THREAD_SIZE \
diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
new file mode 100644
index 00000000000..3280ed3802e
--- /dev/null
+++ b/arch/sh/include/asm/seccomp.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_SECCOMP_H
+
+#include <linux/unistd.h>
+
+#define __NR_seccomp_read __NR_read
+#define __NR_seccomp_write __NR_write
+#define __NR_seccomp_exit __NR_exit
+#define __NR_seccomp_sigreturn __NR_rt_sigreturn
+
+#endif /* __ASM_SECCOMP_H */
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index eeb4c747119..0a894cafb1d 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -117,24 +117,45 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_NEED_RESCHED	2	/* rescheduling necessary */
 #define TIF_RESTORE_SIGMASK	3	/* restore signal mask in do_signal() */
 #define TIF_SINGLESTEP		4	/* singlestepping active */
-#define TIF_SYSCALL_AUDIT	5
+#define TIF_SYSCALL_AUDIT	5	/* syscall auditing active */
+#define TIF_SECCOMP		6	/* secure computing */
+#define TIF_NOTIFY_RESUME	7	/* callback before returning to user */
 #define TIF_USEDFPU		16	/* FPU was used by this task this quantum (SMP) */
 #define TIF_POLLING_NRFLAG	17	/* true if poll_idle() is polling TIF_NEED_RESCHED */
 #define TIF_MEMDIE		18
-#define TIF_FREEZE		19
-
-#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
-#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
-#define _TIF_RESTORE_SIGMASK	(1<<TIF_RESTORE_SIGMASK)
-#define _TIF_SINGLESTEP		(1<<TIF_SINGLESTEP)
-#define _TIF_SYSCALL_AUDIT		(1<<TIF_SYSCALL_AUDIT)
-#define _TIF_USEDFPU		(1<<TIF_USEDFPU)
-#define _TIF_POLLING_NRFLAG	(1<<TIF_POLLING_NRFLAG)
-#define _TIF_FREEZE		(1<<TIF_FREEZE)
-
-#define _TIF_WORK_MASK		0x000000FE	/* work to do on interrupt/exception return */
-#define _TIF_ALLWORK_MASK	0x000000FF	/* work to do on any return to u-space */
+#define TIF_FREEZE		19	/* Freezing for suspend */
+
+#define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
+#define _TIF_SIGPENDING		(1 << TIF_SIGPENDING)
+#define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
+#define _TIF_RESTORE_SIGMASK	(1 << TIF_RESTORE_SIGMASK)
+#define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
+#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
+#define _TIF_SECCOMP		(1 << TIF_SECCOMP)
+#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
+#define _TIF_USEDFPU		(1 << TIF_USEDFPU)
+#define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
+#define _TIF_FREEZE		(1 << TIF_FREEZE)
+
+/*
+ * _TIF_ALLWORK_MASK and _TIF_WORK_MASK need to fit within a byte, or we
+ * blow the tst immediate size constraints and need to fix up
+ * arch/sh/kernel/entry-common.S.
+ */
+
+/* work to do in syscall trace */
+#define _TIF_WORK_SYSCALL_MASK	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | \
+				 _TIF_SYSCALL_AUDIT | _TIF_SECCOMP)
+
+/* work to do on any return to u-space */
+#define _TIF_ALLWORK_MASK	(_TIF_SYSCALL_TRACE | _TIF_SIGPENDING      | \
+				 _TIF_NEED_RESCHED  | _TIF_SYSCALL_AUDIT   | \
+				 _TIF_SINGLESTEP    | _TIF_RESTORE_SIGMASK | \
+				 _TIF_NOTIFY_RESUME)
+
+/* work to do on interrupt/exception return */
+#define _TIF_WORK_MASK		(_TIF_ALLWORK_MASK & ~(_TIF_SYSCALL_TRACE | \
+				 _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP))
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/sh/include/asm/tlb_64.h b/arch/sh/include/asm/tlb_64.h
index 0a96f3af69e..ef0ae2a28f2 100644
--- a/arch/sh/include/asm/tlb_64.h
+++ b/arch/sh/include/asm/tlb_64.h
@@ -21,11 +21,9 @@
 #ifndef __ASSEMBLY__
 
 /**
- * for_each_dtlb_entry
+ * for_each_dtlb_entry - Iterate over free (non-wired) DTLB entries
  *
  * @tlb:	TLB entry
- *
- * Iterate over free (non-wired) DTLB entries
  */
 #define for_each_dtlb_entry(tlb)		\
 	for (tlb  = cpu_data->dtlb.first;	\
@@ -33,11 +31,9 @@
 	     tlb += cpu_data->dtlb.step)
 
 /**
- * for_each_itlb_entry
+ * for_each_itlb_entry - Iterate over free (non-wired) ITLB entries
  *
  * @tlb:	TLB entry
- *
- * Iterate over free (non-wired) ITLB entries
  */
 #define for_each_itlb_entry(tlb)		\
 	for (tlb  = cpu_data->itlb.first;	\
@@ -45,11 +41,9 @@
 	     tlb += cpu_data->itlb.step)
 
 /**
- * __flush_tlb_slot
+ * __flush_tlb_slot - Flushes TLB slot @slot.
  *
  * @slot:	Address of TLB slot.
- *
- * Flushes TLB slot @slot.
  */
 static inline void __flush_tlb_slot(unsigned long long slot)
 {
diff --git a/arch/sh/include/cpu-sh2/cpu/cache.h b/arch/sh/include/cpu-sh2/cpu/cache.h
index 4e0b1650068..673515bc413 100644
--- a/arch/sh/include/cpu-sh2/cpu/cache.h
+++ b/arch/sh/include/cpu-sh2/cpu/cache.h
@@ -21,11 +21,11 @@
 #define CCR		0xffffffec
 
 #define CCR_CACHE_CE	0x01	/* Cache enable */
-#define CCR_CACHE_WT	0x06    /* CCR[bit1=1,bit2=1] */
+#define CCR_CACHE_WT	0x02    /* CCR[bit1=1,bit2=1] */
 				/* 0x00000000-0x7fffffff: Write-through  */
 				/* 0x80000000-0x9fffffff: Write-back     */
                                 /* 0xc0000000-0xdfffffff: Write-through  */
-#define CCR_CACHE_CB	0x00    /* CCR[bit1=0,bit2=0] */
+#define CCR_CACHE_CB	0x04    /* CCR[bit1=0,bit2=0] */
 				/* 0x00000000-0x7fffffff: Write-back     */
 				/* 0x80000000-0x9fffffff: Write-through  */
                                 /* 0xc0000000-0xdfffffff: Write-back     */
@@ -36,6 +36,8 @@
 
 #define CCR_CACHE_ENABLE	CCR_CACHE_CE
 #define CCR_CACHE_INVALIDATE	CCR_CACHE_CF
+#define CACHE_PHYSADDR_MASK	0x1ffffc00
+
 #endif
 
 #endif /* __ASM_CPU_SH2_CACHE_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/addrspace.h b/arch/sh/include/cpu-sh2a/cpu/addrspace.h
new file mode 100644
index 00000000000..31eb4b58aa6
--- /dev/null
+++ b/arch/sh/include/cpu-sh2a/cpu/addrspace.h
@@ -0,0 +1,10 @@
+#ifndef __ASM_SH_CPU_SH2A_ADDRSPACE_H
+#define __ASM_SH_CPU_SH2A_ADDRSPACE_H
+
+#define P0SEG		0x00000000
+#define P1SEG		0x00000000
+#define P2SEG		0x20000000
+#define P3SEG		0x40000000
+#define P4SEG		0x60000000
+
+#endif /* __ASM_SH_CPU_SH2A_ADDRSPACE_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/cache.h b/arch/sh/include/cpu-sh2a/cpu/cache.h
index afe228b3f49..defb0baa5a0 100644
--- a/arch/sh/include/cpu-sh2a/cpu/cache.h
+++ b/arch/sh/include/cpu-sh2a/cpu/cache.h
@@ -36,5 +36,8 @@
 
 #define CCR_CACHE_ENABLE	(CCR_CACHE_OCE | CCR_CACHE_ICE)
 #define CCR_CACHE_INVALIDATE	(CCR_CACHE_OCI | CCR_CACHE_ICI)
+#define CCR_ICACHE_INVALIDATE	CCR_CACHE_ICI
+#define CCR_OCACHE_INVALIDATE	CCR_CACHE_OCI
+#define CACHE_PHYSADDR_MASK	0x1ffffc00
 
 #endif /* __ASM_CPU_SH2A_CACHE_H */
diff --git a/arch/sh/include/cpu-sh2a/cpu/cacheflush.h b/arch/sh/include/cpu-sh2a/cpu/cacheflush.h
new file mode 100644
index 00000000000..3d3b9205d2a
--- /dev/null
+++ b/arch/sh/include/cpu-sh2a/cpu/cacheflush.h
@@ -0,0 +1,34 @@
+#ifndef __ASM_CPU_SH2A_CACHEFLUSH_H
+#define __ASM_CPU_SH2A_CACHEFLUSH_H
+
+/* 
+ * Cache flushing:
+ *
+ *  - flush_cache_all() flushes entire cache
+ *  - flush_cache_mm(mm) flushes the specified mm context's cache lines
+ *  - flush_cache_dup mm(mm) handles cache flushing when forking
+ *  - flush_cache_page(mm, vmaddr, pfn) flushes a single page
+ *  - flush_cache_range(vma, start, end) flushes a range of pages
+ *
+ *  - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
+ *  - flush_icache_range(start, end) flushes(invalidates) a range for icache
+ *  - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
+ *
+ *  Caches are indexed (effectively) by physical address on SH-2, so
+ *  we don't need them.
+ */
+#define flush_cache_all()			do { } while (0)
+#define flush_cache_mm(mm)			do { } while (0)
+#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 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)
+void flush_icache_range(unsigned long start, unsigned long end);
+#define flush_icache_page(vma,pg)		do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
+#define flush_cache_sigtramp(vaddr)		do { } while (0)
+
+#define p3_cache_init()				do { } while (0)
+#endif /* __ASM_CPU_SH2A_CACHEFLUSH_H */
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index dcdf959a3d4..8a8a993f55e 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -199,7 +199,7 @@ EXPORT_SYMBOL(sq_remap);
 
 /**
  * sq_unmap - Unmap a Store Queue allocation
- * @map: Pre-allocated Store Queue mapping.
+ * @vaddr: Pre-allocated Store Queue mapping.
  *
  * Unmaps the store queue allocation @map that was previously created by
  * sq_remap(). Also frees up the pte that was previously inserted into
diff --git a/arch/sh/kernel/cpu/sh5/entry.S b/arch/sh/kernel/cpu/sh5/entry.S
index ca08e7f26a3..04c7da96814 100644
--- a/arch/sh/kernel/cpu/sh5/entry.S
+++ b/arch/sh/kernel/cpu/sh5/entry.S
@@ -987,11 +987,11 @@ work_resched:
 work_notifysig:
 	gettr	tr1, LINK
 
-	movi	do_signal, r6
+	movi	do_notify_resume, r6
 	ptabs	r6, tr0
 	or	SP, ZERO, r2
-	or	ZERO, ZERO, r3
-	blink	tr0, LINK	    /* Call do_signal(regs, 0), return here */
+	or	r7, ZERO, r3
+	blink	tr0, LINK	    /* Call do_notify_resume(regs, current_thread_info->flags), return here */
 
 restore_all:
 	/* Do prefetches */
@@ -1300,18 +1300,20 @@ syscall_allowed:
 
 	getcon	KCR0, r2
 	ld.l	r2, TI_FLAGS, r4
-	movi	(_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT), r6
+	movi	_TIF_WORK_SYSCALL_MASK, r6
 	and	r6, r4, r6
 	beq/l	r6, ZERO, tr0
 
 	/* Trace it by calling syscall_trace before and after */
-	movi	syscall_trace, r4
+	movi	do_syscall_trace_enter, r4
 	or	SP, ZERO, r2
-	or	ZERO, ZERO, r3
 	ptabs	r4, tr0
 	blink	tr0, LINK
 
-	/* Reload syscall number as r5 is trashed by syscall_trace */
+	/* Save the retval */
+	st.q	SP, FRAME_R(2), r2
+
+	/* Reload syscall number as r5 is trashed by do_syscall_trace_enter */
 	ld.q	SP, FRAME_S(FSYSCALL_ID), r5
 	andi	r5, 0x1ff, r5
 
@@ -1343,9 +1345,8 @@ syscall_ret_trace:
 	/* We get back here only if under trace */
 	st.q	SP, FRAME_R(9), r2	/* Save return value */
 
-	movi	syscall_trace, LINK
+	movi	do_syscall_trace_leave, LINK
 	or	SP, ZERO, r2
-	movi	1, r3
 	ptabs	LINK, tr0
 	blink	tr0, LINK
 
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index 5e0dd193384..0bc17def55a 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -202,7 +202,7 @@ work_resched:
 syscall_exit_work:
 	! r0: current_thread_info->flags
 	! r8: current_thread_info
-	tst	#_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP | _TIF_SYSCALL_AUDIT, r0
+	tst	#_TIF_WORK_SYSCALL_MASK, r0
 	bt/s	work_pending
 	 tst	#_TIF_NEED_RESCHED, r0
 #ifdef CONFIG_TRACE_IRQFLAGS
@@ -211,10 +211,8 @@ syscall_exit_work:
 	 nop
 #endif
 	sti
-	! XXX setup arguments...
 	mov	r15, r4
-	mov	#1, r5
-	mov.l	4f, r0			! do_syscall_trace
+	mov.l	8f, r0			! do_syscall_trace_leave
 	jsr	@r0
 	 nop
 	bra	resume_userspace
@@ -223,12 +221,11 @@ syscall_exit_work:
 	.align	2
 syscall_trace_entry:
 	!                     	Yes it is traced.