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

* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix dreamcast build for IRQ changes.
  sh: Fix clock multiplier on SH7722.
  sh: Wire up kdump crash kernel exec in die().
  sh: sr.bl toggling around idle sleep.
  sh: disable genrtc support.
  fs: Kill sh dependency for binfmt_flat.
  sh: Disable psw support for R7785RP.
  sh: Fix page size alignment in __copy_user_page().
  sh: Fix up various compile warnings for SE boards.
  sh: Wire up signalfd/timerfd/eventfd syscalls.
  sh: revert addition of page fault notifiers
  spelling fixes: arch/sh/
  input: hp680_ts compile fixes.
  sh: landisk: Header cleanups.
  sh: landisk: rtc-rs5c313 support.
  sh: Kill off pmb slab cache destructor.
  sh: Fix up psw build rules for r7780rp.
  sh: Shut up compiler warnings in __do_page_fault().

31 files changed, 153 insertions, 127 deletions

diff --git a/arch/sh/boards/landisk/gio.c b/arch/sh/boards/landisk/gio.c
index 50d38be62f01..a37643d002b2 100644
--- a/arch/sh/boards/landisk/gio.c
+++ b/arch/sh/boards/landisk/gio.c
@@ -69,7 +69,7 @@ static int gio_ioctl(struct inode *inode, struct file *filp,
 	}
 
 	switch (cmd) {
-	case GIODRV_IOCSGIOSETADDR:	/* addres set */
+	case GIODRV_IOCSGIOSETADDR:	/* address set */
 		addr = data;
 		break;
 
diff --git a/arch/sh/boards/landisk/setup.c b/arch/sh/boards/landisk/setup.c
index 4058b4f50d44..f953c7427769 100644
--- a/arch/sh/boards/landisk/setup.c
+++ b/arch/sh/boards/landisk/setup.c
@@ -44,8 +44,14 @@ static struct platform_device cf_ide_device = {
 	},
 };
 
+static struct platform_device rtc_device = {
+	.name		= "rs5c313",
+	.id		= -1,
+};
+
 static struct platform_device *landisk_devices[] __initdata = {
 	&cf_ide_device,
+	&rtc_device,
 };
 
 static int __init landisk_devices_setup(void)
diff --git a/arch/sh/boards/renesas/r7780rp/Makefile b/arch/sh/boards/renesas/r7780rp/Makefile
index 609e5d50dde8..b1d20afb4eb3 100644
--- a/arch/sh/boards/renesas/r7780rp/Makefile
+++ b/arch/sh/boards/renesas/r7780rp/Makefile
@@ -3,5 +3,8 @@
 #
 irqinit-y			:= irq-r7780rp.o
 irqinit-$(CONFIG_SH_R7785RP)	:= irq-r7785rp.o
+obj-y				:= setup.o irq.o $(irqinit-y)
+
+ifneq ($(CONFIG_SH_R7785RP),y)
 obj-$(CONFIG_PUSH_SWITCH)	+= psw.o
-obj-y	 			:= setup.o irq.o $(irqinit-y)
+endif
diff --git a/arch/sh/boards/snapgear/rtc.c b/arch/sh/boards/snapgear/rtc.c
index 1659fdd6695a..edb3dd936cbb 100644
--- a/arch/sh/boards/snapgear/rtc.c
+++ b/arch/sh/boards/snapgear/rtc.c
@@ -108,7 +108,7 @@ static void ds1302_writebyte(unsigned int addr, unsigned int val)
 static void ds1302_reset(void)
 {
 	unsigned long	flags;
-	/* Hardware dependant reset/init */
+	/* Hardware dependent reset/init */
 	local_irq_save(flags);
 	set_dirp(get_dirp() | RTC_RESET | RTC_IODATA | RTC_SCLK);
 	set_dp(get_dp() & ~(RTC_RESET | RTC_IODATA | RTC_SCLK));
diff --git a/arch/sh/boards/superh/microdev/io.c b/arch/sh/boards/superh/microdev/io.c
index 83419bf4c834..b704e20d7e4d 100644
--- a/arch/sh/boards/superh/microdev/io.c
+++ b/arch/sh/boards/superh/microdev/io.c
@@ -198,12 +198,12 @@ void microdev_outb(unsigned char b, unsigned long port)
 	/*
 	 *	There is a board feature with the current SH4-202 MicroDev in
 	 *	that the 2 byte enables (nBE0 and nBE1) are tied together (and
-	 *	to the Chip Select Line (Ethernet_CS)). Due to this conectivity,
+	 *	to the Chip Select Line (Ethernet_CS)). Due to this connectivity,
 	 *	it is not possible to safely perform 8-bit writes to the
 	 *	Ethernet registers, as 16-bits will be consumed from the Data
 	 *	lines (corrupting the other byte).  Hence, this function is
-	 *	written to impliment 16-bit read/modify/write for all byte-wide
-	 *	acceses.
+	 *	written to implement 16-bit read/modify/write for all byte-wide
+	 *	accesses.
 	 *
 	 *	Note: there is no problem with byte READS (even or odd).
 	 *
diff --git a/arch/sh/boards/superh/microdev/irq.c b/arch/sh/boards/superh/microdev/irq.c
index 8c64baa30364..cc1cb04fa618 100644
--- a/arch/sh/boards/superh/microdev/irq.c
+++ b/arch/sh/boards/superh/microdev/irq.c
@@ -100,7 +100,7 @@ static void disable_microdev_irq(unsigned int irq)
 
 	fpgaIrq = fpgaIrqTable[irq].fpgaIrq;
 
-	/* disable interupts on the FPGA INTC register */
+	/* disable interrupts on the FPGA INTC register */
 	ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTDSB_REG);
 }
 
@@ -125,7 +125,7 @@ static void enable_microdev_irq(unsigned int irq)
 	priorities |= MICRODEV_FPGA_INTPRI_LEVEL(fpgaIrq, pri);
 	ctrl_outl(priorities, priorityReg);
 
-	/* enable interupts on the FPGA INTC register */
+	/* enable interrupts on the FPGA INTC register */
 	ctrl_outl(MICRODEV_FPGA_INTC_MASK(fpgaIrq), MICRODEV_FPGA_INTENB_REG);
 }
 
@@ -152,7 +152,7 @@ extern void __init init_microdev_irq(void)
 {
 	int i;
 
-		/* disable interupts on the FPGA INTC register */
+		/* disable interrupts on the FPGA INTC register */
 	ctrl_outl(~0ul, MICRODEV_FPGA_INTDSB_REG);
 
 	for (i = 0; i < NUM_EXTERNAL_IRQS; i++)
diff --git a/arch/sh/boards/superh/microdev/setup.c b/arch/sh/boards/superh/microdev/setup.c
index 031c814e6e76..6396cea1c896 100644
--- a/arch/sh/boards/superh/microdev/setup.c
+++ b/arch/sh/boards/superh/microdev/setup.c
@@ -349,7 +349,7 @@ static int __init smsc_superio_setup(void)
 	SMSC_WRITE_INDEXED(0x00, 0xc7);	/* GP47 = nIOWOP */
 	SMSC_WRITE_INDEXED(0x08, 0xe8);	/* GP20 = nIDE2_OE */
 
-		/* Exit the configuraton state */
+		/* Exit the configuration state */
 	outb(SMSC_EXIT_CONFIG_KEY, SMSC_CONFIG_PORT_ADDR);
 
 	return 0;
diff --git a/arch/sh/boards/unknown/setup.c b/arch/sh/boards/unknown/setup.c
index 1c941370a2e3..bee4612de59b 100644
--- a/arch/sh/boards/unknown/setup.c
+++ b/arch/sh/boards/unknown/setup.c
@@ -6,7 +6,7 @@
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.
  *
- * Setup code for an unknown machine (internal peripherials only)
+ * Setup code for an unknown machine (internal peripherals only)
  *
  * This is the simplest of all boards, and serves only as a quick and dirty
  * method to start debugging a new board during bring-up until proper board
diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c
index e062067edd24..8057a27a1bc6 100644
--- a/arch/sh/drivers/dma/dma-api.c
+++ b/arch/sh/drivers/dma/dma-api.c
@@ -115,7 +115,7 @@ static int search_cap(const char **haystack, const char *needle)
 /**
  * request_dma_bycap - Allocate a DMA channel based on its capabilities
  * @dmac: List of DMA controllers to search
- * @caps: List of capabilites
+ * @caps: List of capabilities
  *
  * Search all channels of all DMA controllers to find a channel which
  * matches the requested capabilities. The result is the channel
diff --git a/arch/sh/drivers/dma/dma-isa.c b/arch/sh/drivers/dma/dma-isa.c
index 05a74ffdb68d..5fb044b791c3 100644
--- a/arch/sh/drivers/dma/dma-isa.c
+++ b/arch/sh/drivers/dma/dma-isa.c
@@ -28,7 +28,7 @@
  * NOTE: ops->xfer() is the preferred way of doing things. However, there
  * are some users of the ISA DMA API that exist in common code that we
  * don't necessarily want to go out of our way to break, so we still
- * allow for some compatability at that level. Any new code is strongly
+ * allow for some compatibility at that level. Any new code is strongly
  * advised to run far away from the ISA DMA API and use the SH DMA API
  * directly.
  */
diff --git a/arch/sh/drivers/dma/dmabrg.c b/arch/sh/drivers/dma/dmabrg.c
index 9d0a29370f21..5e22689c2fcf 100644
--- a/arch/sh/drivers/dma/dmabrg.c
+++ b/arch/sh/drivers/dma/dmabrg.c
@@ -33,7 +33,7 @@
  *     9      | HAC1/SSI1 | rec | half done    | DMABRGI2
  *
  * all can be enabled/disabled in the DMABRGCR register,
- * as well as checked if they occured.
+ * as well as checked if they occurred.
  *
  * DMABRGI0 services  USB  DMA  Address  errors,  but it still must be
  * enabled/acked in the DMABRGCR register.  USB-DMA complete indicator
diff --git a/arch/sh/drivers/pci/ops-dreamcast.c b/arch/sh/drivers/pci/ops-dreamcast.c
index 381306cf5425..e1284fc69361 100644
--- a/arch/sh/drivers/pci/ops-dreamcast.c
+++ b/arch/sh/drivers/pci/ops-dreamcast.c
@@ -57,7 +57,7 @@ struct pci_channel board_pci_channels[] = {
  *
  * Also, we could very easily support both Type 0 and Type 1 configurations
  * here, but since it doesn't seem that there is any such implementation in
- * existance, we don't bother.
+ * existence, we don't bother.
  *
  * I suppose if someone actually gets around to ripping the chip out of
  * the BBA and hanging some more devices off of it, then this might be
diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c
index d67656a44b15..543417ff8314 100644
--- a/arch/sh/drivers/pci/pci-st40.c
+++ b/arch/sh/drivers/pci/pci-st40.c
@@ -292,7 +292,7 @@ int __init st40pci_init(unsigned memStart, unsigned memSize)
 			    PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER |
 			    PCI_COMMAND_IO);
 
-	/* Accesse to the 0xb0000000 -> 0xb6000000 area will go through to 0x10000000 -> 0x16000000
+	/* Access to the 0xb0000000 -> 0xb6000000 area will go through to 0x10000000 -> 0x16000000
 	 * on the PCI bus. This allows a nice 1-1 bus to phys mapping.
 	 */
 
@@ -315,7 +315,7 @@ int __init st40pci_init(unsigned memStart, unsigned memSize)
 	ST40PCI_WRITE(CSR_MBAR0, 0);
 	ST40PCI_WRITE(LSR0, 0x0fff0001);
 
-	/* ... and set up the initial incomming window to expose all of RAM */
+	/* ... and set up the initial incoming window to expose all of RAM */
 	pci_set_rbar_region(7, memStart, memStart, memSize);
 
 	/* Maximise timeout values */
@@ -473,7 +473,7 @@ static void pci_set_rbar_region(unsigned int region,     unsigned long localAddr
 
 	mask = r2p2(regionSize) - 0x10000;
 
-	/* Diable the region (in case currently in use, should never happen) */
+	/* Disable the region (in case currently in use, should never happen) */
 	ST40PCI_WRITE_INDEXED(RSR, region, 0);
 
 	/* Start of local address space to publish */
diff --git a/arch/sh/drivers/pci/pci-st40.h b/arch/sh/drivers/pci/pci-st40.h
index d729e0c2d5fe..cf0d35bd135c 100644
--- a/arch/sh/drivers/pci/pci-st40.h
+++ b/arch/sh/drivers/pci/pci-st40.h
@@ -4,7 +4,7 @@
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.                            
  *
- * Defintions for the ST40 PCI hardware.
+ * Definitions for the ST40 PCI hardware.
  */
 
 #ifndef __PCI_ST40_H__
diff --git a/arch/sh/drivers/superhyway/ops-sh4-202.c b/arch/sh/drivers/superhyway/ops-sh4-202.c
index a55c98a9052b..3b14bf860db6 100644
--- a/arch/sh/drivers/superhyway/ops-sh4-202.c
+++ b/arch/sh/drivers/superhyway/ops-sh4-202.c
@@ -130,7 +130,7 @@ static int sh4202_read_vcr(unsigned long base, struct superhyway_vcr_info *vcr)
 	 * Some modules (PBR and ePBR for instance) also appear to have
 	 * VCRL/VCRH flipped in the documentation, but on the SH4-202
 	 * itself it appears that these are all consistently mapped with
-	 * VCRH preceeding VCRL.
+	 * VCRH preceding VCRL.
 	 *
 	 * Do not trust the documentation, for it is evil.
 	 */
diff --git a/arch/sh/kernel/cf-enabler.c b/arch/sh/kernel/cf-enabler.c
index 0758d48147a0..849a9e191391 100644
--- a/arch/sh/kernel/cf-enabler.c
+++ b/arch/sh/kernel/cf-enabler.c
@@ -31,7 +31,7 @@
  */
 #if defined(CONFIG_CPU_SH4)
 /* SH4 can't access PCMCIA interface through P2 area.
- * we must remap it with appropreate attribute bit of the page set.
+ * we must remap it with appropriate attribute bit of the page set.
  * this part is based on Greg Banks' hd64465_ss.c implementation - Masahiro Abe */
 
 #if defined(CONFIG_CF_AREA6)
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 014f318f5a05..63251549e9a8 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -278,6 +278,11 @@ arch_init_clk_ops(struct clk_ops **ops, int type)
 {
 }
 
+void __init __attribute__ ((weak))
+arch_clk_init(void)
+{
+}
+
 static int show_clocks(char *buf, char **start, off_t off,
 		       int len, int *eof, void *data)
 {
@@ -314,6 +319,8 @@ int __init clk_init(void)
 		ret |= clk_register(clk);
 	}
 
+	arch_clk_init();
+
 	/* Kick the child clocks.. */
 	propagate_rate(&master_clk);
 	propagate_rate(&bus_clk);
diff --git a/arch/sh/kernel/cpu/irq/maskreg.c b/arch/sh/kernel/cpu/irq/maskreg.c
index 492db31b3cab..978992e367a5 100644
--- a/arch/sh/kernel/cpu/irq/maskreg.c
+++ b/arch/sh/kernel/cpu/irq/maskreg.c
@@ -38,7 +38,7 @@ static struct hw_interrupt_type maskreg_irq_type = {
 	.end = end_maskreg_irq
 };
 
-/* actual implementatin */
+/* actual implementation */
 static unsigned int startup_maskreg_irq(unsigned int irq)
 {
 	enable_maskreg_irq(irq);
diff --git a/arch/sh/kernel/cpu/sh4/fpu.c b/arch/sh/kernel/cpu/sh4/fpu.c
index d61dd599169f..c5a4fc77fa06 100644
--- a/arch/sh/kernel/cpu/sh4/fpu.c
+++ b/arch/sh/kernel/cpu/sh4/fpu.c
@@ -138,7 +138,7 @@ restore_fpu(struct task_struct *tsk)
 /*
  * Load the FPU with signalling NANS.  This bit pattern we're using
  * has the property that no matter wether considered as single or as
- * double precission represents signaling NANS.  
+ * double precision represents signaling NANS.  
  */
 
 static void
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index 6f8f458912c7..03b14cf78ddf 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -106,6 +106,7 @@ static struct ipr_data sh7750_ipr_map[] = {
 	{ 38, 2,  8, 7 }, /* DMAC DMAE */
 };
 
+#ifdef CONFIG_CPU_SUBTYPE_SH7751
 static struct ipr_data sh7751_ipr_map[] = {
 	{ 44, 2,  8, 7 }, /* DMAC DMTE4 */
 	{ 45, 2,  8, 7 }, /* DMAC DMTE5 */
@@ -117,6 +118,7 @@ static struct ipr_data sh7751_ipr_map[] = {
 	/*{ 72, INTPRI00,  8, ? },*/ /* TMU3 TUNI */
 	/*{ 76, INTPRI00, 12, ? },*/ /* TMU4 TUNI */
 };
+#endif
 
 static unsigned long ipr_offsets[] = {
 	0xffd00004UL,	/* 0: IPRA */
diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 29090035bc5b..51b386d454de 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
@@ -17,7 +17,6 @@
 #include <asm/clock.h>
 #include <asm/freq.h>
 
-#define SH7722_PLL_FREQ (32000000/8)
 #define N  (-1)
 #define NM (-2)
 #define ROUND_NEAREST 0
@@ -141,28 +140,36 @@ static void adjust_clocks(int originate, int *l, unsigned long v[],
 */
 static int divisors2[] = { 2, 3, 4, 5, 6, 8, 10, 12, 16, 20, 24, 32, 40 };
 
+static void master_clk_recalc(struct clk *clk)
+{
+	unsigned frqcr = ctrl_inl(FRQCR);
+
+	clk->rate = CONFIG_SH_PCLK_FREQ * (((frqcr >> 24) & 0x1f) + 1);
+}
+
 static void master_clk_init(struct clk *clk)
 {
-	clk_set_rate(clk, clk_get_rate(clk));
+	clk->parent = NULL;
+	clk->flags |= CLK_RATE_PROPAGATES;
+	clk->rate = CONFIG_SH_PCLK_FREQ;
+	master_clk_recalc(clk);
 }
 
-static void master_clk_recalc(struct clk *clk)
+
+static void module_clk_recalc(struct clk *clk)
 {
 	unsigned long frqcr = ctrl_inl(FRQCR);
 
-	clk->rate = CONFIG_SH_PCLK_FREQ * (1 + (frqcr >> 24 & 0xF));
+	clk->rate = clk->parent->rate / (((frqcr >> 24) & 0x1f) + 1);
 }
 
 static int master_clk_setrate(struct clk *clk, unsigned long rate, int id)
 {
-	int div = rate / SH7722_PLL_FREQ;
+	int div = rate / clk->rate;
 	int master_divs[] = { 2, 3, 4, 6, 8, 16 };
 	int index;
 	unsigned long frqcr;
 
-	if (rate < SH7722_PLL_FREQ * 2)
-		return -EINVAL;
-
 	for (index = 1; index < ARRAY_SIZE(master_divs); index++)
 		if (div >= master_divs[index - 1] && div < master_divs[index])
 			break;
@@ -185,6 +192,10 @@ static struct clk_ops sh7722_master_clk_ops = {
 	.set_rate = master_clk_setrate,
 };
 
+static struct clk_ops sh7722_module_clk_ops = {
+       .recalc = module_clk_recalc,
+};
+
 struct frqcr_context {
 	unsigned mask;
 	unsigned shift;
@@ -489,7 +500,7 @@ static void sh7722_siu_recalc(struct clk *clk)
 
 	if (siu < 0)
 		return /* siu */ ;
-	BUG_ON(siu > 1);
+	BUG_ON(siu > 2);
 	r = ctrl_inl(sh7722_siu_regs[siu]);
 	clk->rate = clk->parent->rate * 2 / divisors2[r & 0xF];
 }
@@ -571,7 +582,7 @@ static struct clk *sh7722_clocks[] = {
  */
 struct clk_ops *onchip_ops[] = {
 	&sh7722_master_clk_ops,
-	&sh7722_frqcr_clk_ops,
+	&sh7722_module_clk_ops,
 	&sh7722_frqcr_clk_ops,
 	&sh7722_frqcr_clk_ops,
 };
@@ -583,7 +594,7 @@ arch_init_clk_ops(struct clk_ops **ops, int type)
 	*ops = onchip_ops[type];
 }
 
-int __init sh7722_clock_init(void)
+int __init arch_clk_init(void)
 {
 	struct clk *master;
 	int i;
@@ -597,4 +608,3 @@ int __init sh7722_clock_init(void)
 	clk_put(master);
 	return 0;
 }
-arch_initcall(sh7722_clock_init);
diff --git a/arch/sh/kernel/kgdb_stub.c b/arch/sh/kernel/kgdb_stub.c
index a5323364cbca..edd1ec214e6d 100644
--- a/arch/sh/kernel/kgdb_stub.c
+++ b/arch/sh/kernel/kgdb_stub.c
@@ -2,7 +2,7 @@
  * May be copied or modified under the terms of the GNU General Public
  * License.  See linux/COPYING for more information.
  *
- * Containes extracts from code by Glenn Engel, Jim Kingdon,
+ * Contains extracts from code by Glenn Engel, Jim Kingdon,
  * David Grothe <dave@gcom.com>, Tigran Aivazian <tigran@sco.com>,
  * Amit S. Kale <akale@veritas.com>,  William Gatliff <bgat@open-widgets.com>,
  * Ben Lee, Steve Chamberlain and Benoit Miller <fulg@iname.com>.
@@ -85,7 +85,7 @@
  *
  * Responses can be run-length encoded to save space.  A '*' means that
  * the next character is an ASCII encoding giving a repeat count which
- * stands for that many repititions of the character preceding the '*'.
+ * stands for that many repetitions of the character preceding the '*'.
  * The encoding is n+29, yielding a printable character where n >=3
  * (which is where RLE starts to win).  Don't use an n > 126.
  *
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index 6b4f5748d0be..a11e2aa73cbc 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -26,8 +26,6 @@
 static int hlt_counter;
 int ubc_usercnt = 0;
 
-#define HARD_IDLE_TIMEOUT (HZ / 3)
-
 void (*pm_idle)(void);
 void (*pm_power_off)(void);
 EXPORT_SYMBOL(pm_power_off);
@@ -44,16 +42,39 @@ void enable_hlt(void)
 }
 EXPORT_SYMBOL(enable_hlt);
 
+static int __init nohlt_setup(char *__unused)
+{
+	hlt_counter = 1;
+	return 1;
+}
+__setup("nohlt", nohlt_setup);
+
+static int __init hlt_setup(char *__unused)
+{
+	hlt_counter = 0;
+	return 1;
+}
+__setup("hlt", hlt_setup);
+
 void default_idle(void)
 {
-	if (!hlt_counter)
-		cpu_sleep();
-	else
-		cpu_relax();
+	if (!hlt_counter) {
+		clear_thread_flag(TIF_POLLING_NRFLAG);
+		smp_mb__after_clear_bit();
+		set_bl_bit();
+		while (!need_resched())
+			cpu_sleep();
+		clear_bl_bit();
+		set_thread_flag(TIF_POLLING_NRFLAG);
+	} else
+		while (!need_resched())
+			cpu_relax();
 }
 
 void cpu_idle(void)
 {
+	set_thread_flag(TIF_POLLING_NRFLAG);
+
 	/* endless idle loop with no priority at all */
 	while (1) {
 		void (*idle)(void) = pm_idle;
diff --git a/arch/sh/kernel/syscalls.S b/arch/sh/kernel/syscalls.S
index 4357d1a6358f..7db1c2dc5992 100644
--- a/arch/sh/kernel/syscalls.S
+++ b/arch/sh/kernel/syscalls.S
@@ -355,3 +355,6 @@ ENTRY(sys_call_table)
 	.long sys_getcpu
 	.long sys_epoll_pwait
 	.long sys_utimensat		/* 320 */
+	.long sys_signalfd
+	.long sys_timerfd
+	.long sys_eventfd
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index 3a197649cd83..5b75cb6f8f9b 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -21,6 +21,7 @@
 #include <linux/bug.h>
 #include <linux/debug_locks.h>
 #include <linux/kdebug.h>
+#include <linux/kexec.h>
 #include <linux/limits.h>
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -101,6 +102,16 @@ void die(const char * str, struct pt_regs * regs, long err)
 
 	bust_spinlocks(0);
 	spin_unlock_irq(&die_lock);
+
+	if (kexec_should_crash(current))
+		crash_kexec(regs);
+
+	if (in_interrupt())
+		panic("Fatal exception in interrupt");
+
+	if (panic_on_oops)
+		panic("Fatal exception");
+
 	do_exit(SIGSEGV);
 }
 
@@ -513,7 +524,7 @@ static int handle_unaligned_access(u16 instruction, struct pt_regs *regs)
  *       misaligned data access
  *       access to >= 0x80000000 is user mode
  * Unfortuntaly we can't distinguish between instruction address error
- * and data address errors caused by read acceses.
+ * and data address errors caused by read accesses.
  */
 asmlinkage void do_address_error(struct pt_regs *regs,
 				 unsigned long writeaccess,
diff --git a/arch/sh/math-emu/math.c b/arch/sh/math-emu/math.c
index 1efbac15ff4e..a38e1eed9e77 100644
--- a/arch/sh/math-emu/math.c
+++ b/arch/sh/math-emu/math.c
@@ -148,7 +148,7 @@ fmac(struct sh_fpu_soft_struct *fregs, struct pt_regs *regs, int m, int n)
 	return 0;
 }
 
-// to process fmov's extention (odd n for DR access XD).
+// to process fmov's extension (odd n for DR access XD).
 #define FMOV_EXT(x) if(x&1) x+=16-1
 
 static int
diff --git a/arch/sh/mm/copy_page.S b/arch/sh/mm/copy_page.S
index 397c94c97315..ae039f2da162 100644
--- a/arch/sh/mm/copy_page.S
+++ b/arch/sh/mm/copy_page.S
@@ -129,6 +129,7 @@ ENTRY(__copy_user_page)
 	rts
 	 nop
 #endif
+	.align 2
 .Lpsz:	.long	PAGE_SIZE
 /*
  * __kernel_size_t __copy_user(void *to, const void *from, __kernel_size_t n);
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index 9207da67ff8a..c878faa4ae46 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -15,43 +15,11 @@
 #include <linux/mm.h>
 #include <linux/hardirq.h>
 #include <linux/kprobes.h>
-#include <linux/kdebug.h>
 #include <asm/system.h>
 #include <asm/mmu_context.h>
 #include <asm/tlbflush.h>
 #include <asm/kgdb.h>
 
-#ifdef CONFIG_KPROBES
-ATOMIC_NOTIFIER_HEAD(notify_page_fault_chain);
-
-/* Hook to register for page fault notifications */
-int register_page_fault_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_register(&notify_page_fault_chain, nb);
-}
-
-int unregister_page_fault_notifier(struct notifier_block *nb)
-{
-	return atomic_notifier_chain_unregister(&notify_page_fault_chain, nb);
-}
-
-static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
-				    int trap, int sig)
-{
-	struct die_args args = {
-		.regs = regs,
-		.trapnr = trap,
-	};
-	return atomic_notifier_call_chain(&notify_page_fault_chain, val, &args);
-}
-#else
-static inline int notify_page_fault(enum die_val val, struct pt_regs *regs,
-				    int trap, int sig)
-{
-	return NOTIFY_DONE;
-}
-#endif
-
 /*
  * This routine handles page faults.  It determines the address,
  * and the problem, and then passes it off to one of the appropriate
@@ -69,11 +37,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
 	siginfo_t info;
 
 	trace_hardirqs_on();
-
-	if (notify_page_fault(DIE_PAGE_FAULT, regs,
-			      writeaccess, SIGSEGV) == NOTIFY_STOP)
-		return;
-
 	local_irq_enable();
 
 #ifdef CONFIG_SH_KGDB
@@ -285,7 +248,7 @@ asmlinkage int __kprobes __do_page_fault(struct pt_regs *regs,
 	pte_t *pte;
 	pte_t entry;
 	struct mm_struct *mm = current->mm;
-	spinlock_t *ptl;
+	spinlock_t *ptl = NULL;
 	int ret = 1;
 
 #ifdef CONFIG_SH_KGDB
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 8fe223a890ed..e0e644ff3204 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/proc_fs.h>
+#include <linux/pagemap.h>
 #include <linux/percpu.h>
 #include <linux/io.h>
 #include <asm/mmu_context.h>
@@ -112,7 +113,7 @@ static void set_pte_phys(unsigned long addr, unsigned long phys, pgprot_t prot)
  * As a performance optimization, other platforms preserve the fixmap mapping
  * across a context switch, we don't presently do this, but this could be done
  * in a similar fashion as to the wired TLB interface that sh64 uses (by way
- * of the memorry mapped UTLB configuration) -- this unfortunately forces us to
+ * of the memory mapped UTLB configuration) -- this unfortunately forces us to
  * give up a TLB entry for each mapping we want to preserve. While this may be
  * viable for a small number of fixmaps, it's not particularly useful for
  * everything and needs to be carefully evaluated. (ie, we may want this for
diff --git a/arch/sh/mm/pmb.c b/arch/sh/mm/pmb.c
index 02aae06527dc..b6a5a338145b 100644
--- a/arch/sh/mm/pmb.c
+++ b/arch/sh/mm/pmb.c
@@ -3,7 +3,7 @@
  *
  * Privileged Space Mapping Buffer (PMB) Support.
  *
- * Copyright (C) 2005, 2006 Paul Mundt
+ * Copyright (C) 2005, 2006, 2007 Paul Mundt
  *
  * P1/P2 Section mapping definitions from map32.h, which was:
  *
@@ -68,6 +68,32 @@ static inline unsigned long mk_pmb_data(unsigned int entry)
 	return mk_pmb_entry(entry) | PMB_DATA;
 }
 
+static DEFINE_SPINLOCK(pmb_list_lock);
+static struct pmb_entry *pmb_list;
+
+static inline void pmb_list_add(struct pmb_entry *pmbe)
+{
+	struct pmb_entry **p, *tmp;
+
+	p = &pmb_list;
+	while ((tmp = *p) != NULL)
+		p = &tmp->next;
+
+	pmbe->next = tmp;
+	*p = pmbe;
+}
+
+static inline void pmb_list_del(struct pmb_entry *pmbe)
+{
+	struct pmb_entry **p, *tmp;
+
+	for (p = &pmb_list; (tmp = *p); p = &tmp->next)
+		if (tmp == pmbe) {
+			*p = tmp->next;
+			return;
+		}
+}
+
 struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
 			    unsigned long flags)
 {
@@ -81,11 +107,19 @@ struct pmb_entry *pmb_alloc(unsigned long vpn, unsigned long ppn,
 	pmbe->ppn	= ppn;
 	pmbe->flags	= flags;
 
+	spin_lock_irq(&pmb_list_lock);
+	pmb_list_add(pmbe);
+	spin_unlock_irq(&pmb_list_lock);
+
 	return pmbe;
 }
 
 void pmb_free(struct pmb_entry *pmbe)
 {
+	spin_lock_irq(&pmb_list_lock);
+	pmb_list_del(pmbe);
+	spin_unlock_irq(&pmb_list_lock);
+
 	kmem_cache_free(pmb_cache, pmbe);
 }
 
@@ -167,31 +201,6 @@ void clear_pmb_entry(struct pmb_entry *pmbe)
 	clear_bit(entry, &pmb_map);
 }
 
-static DEFINE_SPINLOCK(pmb_list_lock);
-static struct pmb_entry *pmb_list;
-
-static inline void pmb_list_add(struct pmb_entry *pmbe)
-{
-	struct pmb_entry **p, *tmp;
-
-	p = &pmb_list;
-	while ((tmp = *p) != NULL)
-		p = &tmp->next;
-
-	pmbe->next = tmp;
-	*p = pmbe;
-}
-
-static inline void pmb_list_del(struct pmb_entry *pmbe)
-{
-	struct pmb_entry **p, *tmp;
-
-	for (p = &pmb_list; (tmp = *p); p = &tmp->next)
-		if (tmp == pmbe) {
-			*p = tmp->next;
-			return;
-		}
-}
 
 static struct {
 	unsigned long size;
@@ -283,25 +292,14 @@ void pmb_unmap(unsigned long addr)
 	} while (pmbe);
 }
 
-static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep, unsigned long flags)
+static void pmb_cache_ctor(void *pmb, struct kmem_cache *cachep,
+			   unsigned long flags)
 {
 	struct pmb_entry *pmbe = pmb;
 
 	memset(pmb, 0, sizeof(struct pmb_entry));
 
-	spin_lock_irq(&pmb_list_lock);
-
 	pmbe->entry = PMB_NO_ENTRY;
-	pmb_list_add(pmbe);
-
-	spin_unlock_irq(&pmb_list_lock);
-}
-
-static void pmb_cache_dtor(void *pmb, struct kmem_cache *cachep, unsigned long flags)
-{
-	spin_lock_irq(&pmb_list_lock);
-	pmb_list_del(pmb);
-	spin_unlock_irq(&pmb_list_lock);
 }
 
 static int __init pmb_init(void)
@@ -312,8 +310,7 @@ static int __init pmb_init(void)
 	BUG_ON(unlikely(nr_entries >= NR_PMB_ENTRIES));
 
 	pmb_cache = kmem_cache_create("pmb", sizeof(struct pmb_entry), 0,
-				      SLAB_PANIC, pmb_cache_ctor,
-				      pmb_cache_dtor);
+				      SLAB_PANIC, pmb_cache_ctor, NULL);
 
 	jump_to_P2();
 
diff --git a/arch/sh/tools/mach-types b/arch/sh/tools/mach-types
index 554f801db67b..fb40f188aff9 100644
--- a/arch/sh/tools/mach-types
+++ b/arch/sh/tools/mach-types
@@ -7,8 +7,11 @@
 #
 SE			SH_SOLUTION_ENGINE
 7751SE			SH_7751_SOLUTION_ENGINE		
+7722SE			SH_7722_SOLUTION_ENGINE		
 7300SE			SH_7300_SOLUTION_ENGINE
 7343SE			SH_7343_SOLUTION_ENGINE
+7206SE			SH_7206_SOLUTION_ENGINE
+7619SE			SH_7619_SOLUTION_ENGINE
 7780SE			SH_7780_SOLUTION_ENGINE
 73180SE			SH_73180_SOLUTION_ENGINE
 7751SYSTEMH		SH_7751_SYSTEMH
@@ -31,5 +34,3 @@ R7785RP			SH_R7785RP
 TITAN			SH_TITAN
 SHMIN			SH_SHMIN
 7710VOIPGW		SH_7710VOIPGW
-7206SE			SH_7206_SOLUTION_ENGINE
-7619SE			SH_7619_SOLUTION_ENGINE