Merge bk://bk.arm.linux.org.uk/linux-2.5-rmk

into penguin.transmeta.com:/home/torvalds/v2.5/linux

arch/arm/kernel/asm-offsets.c

 /*
- * Copyright (C) 1995-2001 Russell King
+ * Copyright (C) 1995-2003 Russell King
  *               2001-2002 Keith Owens
  *     
  * Generate definitions needed by assembly language modules.
@@ -24,12 +24,21 @@
 #if defined(__APCS_26__)
 #error Sorry, your compiler targets APCS-26 but this kernel requires APCS-32
 #endif
-#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 95)
-#error Sorry, your compiler is known to miscompile kernels.  Only use gcc 2.95.3 and later.
-#endif
-#if __GNUC__ == 2 && __GNUC_MINOR__ == 95
-/* shame we can't detect the .1 or .2 releases */
-#warning GCC 2.95.2 and earlier miscompiles kernels.
+/*
+ * GCC 2.95.1, 2.95.2: ignores register clobber list in asm().
+ * GCC 3.0, 3.1: general bad code generation.
+ * GCC 3.2.0: incorrect function argument offset calculation.
+ * GCC 3.2.x: miscompiles NEW_AUX_ENT in fs/binfmt_elf.c
+ *            (http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=8896)
+ */
+#if __GNUC__ < 2 || \
+   (__GNUC__ == 2 && __GNUC_MINOR__ < 95) || \
+   (__GNUC__ == 2 && __GNUC_MINOR__ == 95 && __GNUC_PATCHLEVEL__ != 0 && \
+					     __GNUC_PATCHLEVEL__ < 3) || \
+   (__GNUC__ == 3 && __GNUC_MINOR__ < 2) || \
+   (__GNUC__ == 3 && __GNUC_MINOR__ == 2 && __GNUC_PATCHLEVEL__ < 1)
+#error Your compiler is too buggy; it is known to miscompile kernels.
+#error    Known good compilers: 2.95.3, 2.95.4, 2.96, 3.2.2+PR8896
 #endif
 
 /* Use marker if you need to separate the values later */
@@ -62,7 +71,6 @@ int main(void)
   DEFINE(LPTE_EXEC,		L_PTE_EXEC);
   DEFINE(LPTE_DIRTY,		L_PTE_DIRTY);
   BLANK();
-  BLANK();
   DEFINE(PAGE_SZ,	       	PAGE_SIZE);
   BLANK();
   DEFINE(SYS_ERROR0,		0x9f0000);

arch/arm/kernel/calls.S

 /*
- *  linux/arch/arm/lib/calls.h
+ *  linux/arch/arm/kernel/calls.S
  *
- *  Copyright (C) 1995-1998 Russell King
+ *  Copyright (C) 1995-2003 Russell King
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as

arch/arm/kernel/entry-armv.S

@@ -621,7 +621,7 @@ ENTRY(anakin_active_irqs)
 		rsb	\irqstat, \irqnr, #0
 		and	\irqstat, \irqstat, \irqnr
 		clz	\irqnr, \irqstat
-		rsb	\irqnr, \irqnr, #23
+		rsb	\irqnr, \irqnr, #(31 - PXA_IRQ_SKIP)
 1001:
 		.endm
 

arch/arm/kernel/irq.c

@@ -58,6 +58,11 @@ void dummy_mask_unmask_irq(unsigned int irq)
 {
 }
 
+irqreturn_t no_action(int irq, void *dev_id, struct pt_regs *regs)
+{
+	return IRQ_NONE;
+}
+
 void do_bad_IRQ(unsigned int irq, struct irqdesc *desc, struct pt_regs *regs)
 {
 	irq_err_count += 1;
@@ -222,6 +227,7 @@ static void
 __do_irq(unsigned int irq, struct irqaction *action, struct pt_regs *regs)
 {
 	unsigned int status;
+	int retval = 0;
 
 	spin_unlock(&irq_controller_lock);
 
@@ -231,7 +237,7 @@ __do_irq(unsigned int irq, struct irqaction *action, struct pt_regs *regs)
 	status = 0;
 	do {
 		status |= action->flags;
-		action->handler(irq, action->dev_id, regs);
+		retval |= action->handler(irq, action->dev_id, regs);
 		action = action->next;
 	} while (action);
 
@@ -239,6 +245,19 @@ __do_irq(unsigned int irq, struct irqaction *action, struct pt_regs *regs)
 		add_interrupt_randomness(irq);
 
 	spin_lock_irq(&irq_controller_lock);
+
+	if (retval != 1) {
+		static int count = 100;
+		if (count) {
+			count--;
+			if (retval) {
+				printk("irq event %d: bogus retval mask %x\n",
+					irq, retval);
+			} else {
+				printk("irq %d: nobody cared\n", irq);
+			}
+		}
+	}
 }
 
 /*
@@ -606,7 +625,7 @@ int setup_irq(unsigned int irq, struct irqaction *new)
  *	SA_SAMPLE_RANDOM	The interrupt can be used for entropy
  *
  */
-int request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *),
+int request_irq(unsigned int irq, irqreturn_t (*handler)(int, void *, struct pt_regs *),
 		 unsigned long irq_flags, const char * devname, void *dev_id)
 {
 	unsigned long retval;

arch/arm/kernel/pm.c

@@ -16,10 +16,18 @@
 #include <asm/leds.h>
 #include <asm/system.h>
 
+/*
+ * Tell the linker that pm_do_suspend may not be present.
+ */
+extern int pm_do_suspend(void) __attribute__((weak));
+
 int suspend(void)
 {
 	int ret;
 
+	if (!pm_do_suspend)
+		return -ENOSYS;
+
 	/*
 	 * Suspend "legacy" devices.
 	 */
@@ -82,9 +90,26 @@ int suspend(void)
 }
 
 #ifdef CONFIG_SYSCTL
+/*
+ * We really want this to die.  It's a disgusting hack using unallocated
+ * sysctl numbers.  We should be using a real interface.
+ */
+
 #include <linux/init.h>
 #include <linux/sysctl.h>
 
+static int
+pm_sysctl_proc_handler(ctl_table *ctl, int write, struct file *filp,
+		       void *buffer, size_t *lenp)
+{
+	int ret = -EIO;
+	printk("PM: task %s (pid %d) uses deprecated sysctl PM interface\n",
+		current->comm, current->pid);
+	if (write)
+		ret = suspend();
+	return ret;
+}
+
 /*
  * This came from arch/arm/mach-sa1100/pm.c:
  * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
@@ -102,13 +127,23 @@ int suspend(void)
 
 static struct ctl_table pm_table[] =
 {
-	{ACPI_S1_SLP_TYP, "suspend", NULL, 0, 0600, NULL, (proc_handler *)&suspend},
+	{
+		.ctl_name	= ACPI_S1_SLP_TYP,
+		.procname	= "suspend",
+		.mode		= 0200,
+		.proc_handler	= pm_sysctl_proc_handler,
+	},
 	{0}
 };
 
 static struct ctl_table pm_dir_table[] =
 {
-	{CTL_ACPI, "pm", NULL, 0, 0555, pm_table},
+	{
+		.ctl_name	= CTL_ACPI,
+		.procname	= "pm",
+		.mode		= 0555,
+		.child		= pm_table,
+	},
 	{0}
 };
 

arch/arm/kernel/ptrace.c

@@ -18,10 +18,12 @@
 #include <linux/ptrace.h>
 #include <linux/user.h>
 #include <linux/security.h>
+#include <linux/init.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/system.h>
+#include <asm/traps.h>
 
 #include "ptrace.h"
 
@@ -32,7 +34,7 @@
  * in exit.c or in signal.c.
  */
 
-#if 1
+#if 0
 /*
  * Breakpoint SWI instruction: SWI &9F0001
  */
@@ -479,25 +481,47 @@ void ptrace_break(struct task_struct *tsk, struct pt_regs *regs)
 {
 	siginfo_t info;
 
-	/*
-	 * The PC is always left pointing at the next instruction.  Fix this.
-	 */
-	regs->ARM_pc -= 4;
-
-	if (tsk->thread.debug.nsaved == 0)
-		printk(KERN_ERR "ptrace: bogus breakpoint trap\n");
-
 	ptrace_cancel_bpt(tsk);
 
 	info.si_signo = SIGTRAP;
 	info.si_errno = 0;
 	info.si_code  = TRAP_BRKPT;
-	info.si_addr  = (void *)instruction_pointer(regs) -
-			 (thumb_mode(regs) ? 2 : 4);
+	info.si_addr  = (void *)instruction_pointer(regs);
 
 	force_sig_info(SIGTRAP, &info, tsk);
 }
 
+static int break_trap(struct pt_regs *regs, unsigned int instr)
+{
+	ptrace_break(current, regs);
+	return 0;
+}
+
+static struct undef_hook arm_break_hook = {
+	.instr_mask	= 0x0fffffff,
+	.instr_val	= 0x07f001f0,
+	.cpsr_mask	= PSR_T_BIT,
+	.cpsr_val	= 0,
+	.fn		= break_trap,
+};
+
+static struct undef_hook thumb_break_hook = {
+	.instr_mask	= 0xffff,
+	.instr_val	= 0xde01,
+	.cpsr_mask	= PSR_T_BIT,
+	.cpsr_val	= PSR_T_BIT,
+	.fn		= break_trap,
+};
+
+static int __init ptrace_break_init(void)
+{
+	register_undef_hook(&arm_break_hook);
+	register_undef_hook(&thumb_break_hook);
+	return 0;
+}
+
+core_initcall(ptrace_break_init);
+
 /*
  * Read the word at offset "off" into the "struct user".  We
  * actually access the pt_regs stored on the kernel stack.

arch/arm/kernel/traps.c

@@ -34,7 +34,7 @@
 #include <asm/system.h>
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
-#include <asm/semaphore.h>
+#include <asm/traps.h>
 
 #include "ptrace.h"
 
@@ -240,17 +240,56 @@ void die_if_kernel(const char *str, struct pt_regs *regs, int err)
     	die(str, regs, err);
 }
 
+static LIST_HEAD(undef_hook);
+static spinlock_t undef_lock = SPIN_LOCK_UNLOCKED;
+
+void register_undef_hook(struct undef_hook *hook)
+{
+	spin_lock_irq(&undef_lock);
+	list_add(&hook->node, &undef_hook);
+	spin_unlock_irq(&undef_lock);
+}
+
+void unregister_undef_hook(struct undef_hook *hook)
+{
+	spin_lock_irq(&undef_lock);
+	list_del(&hook->node);
+	spin_unlock_irq(&undef_lock);
+}
+
 asmlinkage void do_undefinstr(struct pt_regs *regs)
 {
-	unsigned long *pc;
+	unsigned int correction = thumb_mode(regs) ? 2 : 4;
+	unsigned int instr;
+	struct undef_hook *hook;
 	siginfo_t info;
+	void *pc;
 
 	/*
-	 * According to the ARM ARM, PC is 2 or 4 bytes ahead, depending
-	 * whether we're in Thumb mode or not.
+	 * According to the ARM ARM, PC is 2 or 4 bytes ahead,
+	 * depending whether we're in Thumb mode or not.
+	 * Correct this offset.
 	 */
-	regs->ARM_pc -= thumb_mode(regs) ? 2 : 4;
-	pc = (unsigned long *)instruction_pointer(regs);
+	regs->ARM_pc -= correction;
+
+	pc = (void *)instruction_pointer(regs);
+	if (thumb_mode(regs)) {
+		get_user(instr, (u16 *)pc);
+	} else {
+		get_user(instr, (u32 *)pc);
+	}
+
+	spin_lock_irq(&undef_lock);
+	list_for_each_entry(hook, &undef_hook, node) {
+		if ((instr & hook->instr_mask) == hook->instr_val &&
+		    (regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val) {
+			if (hook->fn(regs, instr) == 0) {
+				spin_unlock_irq(&undef_lock);
+				return;
+			}
+		}
+	}
+	spin_unlock_irq(&undef_lock);
 
 #ifdef CONFIG_DEBUG_USER
 	printk(KERN_INFO "%s (%d): undefined instruction: pc=%p\n",
@@ -377,6 +416,7 @@ asmlinkage int arm_syscall(int no, struct pt_regs *regs)
 		return 0;
 
 	case NR(breakpoint): /* SWI BREAK_POINT */
+		regs->ARM_pc -= thumb_mode(regs) ? 2 : 4;
 		ptrace_break(current, regs);
 		return regs->ARM_r0;
 

arch/arm/lib/copy_page.S

@@ -13,11 +13,7 @@
 #include <asm/assembler.h>
 #include <asm/constants.h>
 
-#ifndef PLD
-#define COPY_COUNT PAGE_SZ/64
-#else
-#define COPY_COUNT PAGE_SZ/64-1
-#endif
+#define COPY_COUNT (PAGE_SZ/64 PLD( -1 ))
 
 		.text
 		.align	5

arch/arm/mach-footbridge/dc21285.c

@@ -65,7 +65,7 @@ dc21285_read_config(struct pci_bus *bus, unsigned int devfn, int where,
 		    int size, u32 *value)
 {
 	unsigned long addr = dc21285_base_address(bus, devfn);
-	u32 v;
+	u32 v = 0xffffffff;
 
 	if (addr)
 		switch (size) {
@@ -82,8 +82,6 @@ dc21285_read_config(struct pci_bus *bus, unsigned int devfn, int where,
 				: "=r" (v) : "r" (addr), "r" (where));
 			break;
 		}
-	else
-		v = 0xffffffff;
 
 	*value = v;
 
@@ -154,7 +152,7 @@ static void dc21285_enable_error(unsigned long __data)
 /*
  * Warn on PCI errors.
  */
-static void dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	unsigned int cmd;
 	unsigned int status;
@@ -180,9 +178,11 @@ static void dc21285_abort_irq(int irq, void *dev_id, struct pt_regs *regs)
 	}
 
 	*CSR_PCICMD = cmd;
+
+	return IRQ_HANDLED;
 }
 
-static void dc21285_serr_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_serr_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct timer_list *timer = dev_id;
 	unsigned int cntl;
@@ -200,15 +200,19 @@ static void dc21285_serr_irq(int irq, void *dev_id, struct pt_regs *regs)
 	disable_irq(irq);
 	timer->expires = jiffies + HZ;
 	add_timer(timer);
+
+	return IRQ_HANDLED;
 }
 
-static void dc21285_discard_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_discard_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	printk(KERN_DEBUG "PCI: discard timer expired\n");
 	*CSR_SA110_CNTL &= 0xffffde07;
+
+	return IRQ_HANDLED;
 }
 
-static void dc21285_dparity_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_dparity_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	unsigned int cmd;
 
@@ -218,9 +222,11 @@ static void dc21285_dparity_irq(int irq, void *dev_id, struct pt_regs *regs)
 
 	cmd = *CSR_PCICMD & 0xffff;
 	*CSR_PCICMD = cmd | 1 << 24;
+
+	return IRQ_HANDLED;
 }
 
-static void dc21285_parity_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dc21285_parity_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct timer_list *timer = dev_id;
 	unsigned int cmd;
@@ -238,6 +244,8 @@ static void dc21285_parity_irq(int irq, void *dev_id, struct pt_regs *regs)
 	disable_irq(irq);
 	timer->expires = jiffies + HZ;
 	add_timer(timer);
+
+	return IRQ_HANDLED;
 }
 
 int __init dc21285_setup(int nr, struct pci_sys_data *sys)

arch/arm/mach-integrator/mm.c

@@ -43,8 +43,6 @@
  * f1500000	15000000	RTC
  * f1600000	16000000	UART 0
  * f1700000	17000000	UART 1
- * f1800000	18000000	Keyboard
- * f1900000	19000000	Mouse
  * f1a00000	1a000000	Debug LEDs
  * f1b00000	1b000000	GPIO
  */
@@ -58,8 +56,6 @@ static struct map_desc integrator_io_desc[] __initdata = {
  { IO_ADDRESS(INTEGRATOR_RTC_BASE),   INTEGRATOR_RTC_BASE,   SZ_4K,  MT_DEVICE },
  { IO_ADDRESS(INTEGRATOR_UART0_BASE), INTEGRATOR_UART0_BASE, SZ_4K,  MT_DEVICE },
  { IO_ADDRESS(INTEGRATOR_UART1_BASE), INTEGRATOR_UART1_BASE, SZ_4K,  MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_KBD_BASE),   INTEGRATOR_KBD_BASE,   SZ_4K,  MT_DEVICE },
- { IO_ADDRESS(INTEGRATOR_MOUSE_BASE), INTEGRATOR_MOUSE_BASE, SZ_4K,  MT_DEVICE },
  { IO_ADDRESS(INTEGRATOR_DBG_BASE),   INTEGRATOR_DBG_BASE,   SZ_4K,  MT_DEVICE },
  { IO_ADDRESS(INTEGRATOR_GPIO_BASE),  INTEGRATOR_GPIO_BASE,  SZ_4K,  MT_DEVICE },
  { PCI_MEMORY_VADDR,                  PHYS_PCI_MEM_BASE,     SZ_16M, MT_DEVICE },

arch/arm/mach-pxa/irq.c

@@ -50,9 +50,9 @@ static struct irqchip pxa_internal_chip = {
  * Use this instead of directly setting GRER/GFER.
  */
 
-static int GPIO_IRQ_rising_edge[3];
-static int GPIO_IRQ_falling_edge[3];
-static int GPIO_IRQ_mask[3];
+static long GPIO_IRQ_rising_edge[3];
+static long GPIO_IRQ_falling_edge[3];
+static long GPIO_IRQ_mask[3];
 
 static int pxa_gpio_irq_type(unsigned int irq, unsigned int type)
 {
@@ -189,7 +189,6 @@ static struct irqchip pxa_muxed_gpio_chip = {
 	.ack		= pxa_ack_muxed_gpio,
 	.mask		= pxa_mask_muxed_gpio,
 	.unmask		= pxa_unmask_muxed_gpio,
-	.rerun		= pxa_manual_rerun,
 	.type		= pxa_gpio_irq_type,
 };
 
@@ -217,21 +216,18 @@ void __init pxa_init_irq(void)
 	/* GPIO 0 and 1 must have their mask bit always set */
 	GPIO_IRQ_mask[0] = 3;
 
+	for (irq = PXA_IRQ(PXA_IRQ_SKIP); irq <= PXA_IRQ(31); irq++) {
+		set_irq_chip(irq, &pxa_internal_chip);
+		set_irq_handler(irq, do_level_IRQ);
+		set_irq_flags(irq, IRQF_VALID);
+	}
+
 	for (irq = IRQ_GPIO0; irq <= IRQ_GPIO1; irq++) {
 		set_irq_chip(irq, &pxa_low_gpio_chip);
 		set_irq_handler(irq, do_edge_IRQ);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	for (irq = PXA_IRQ(11); irq <= PXA_IRQ(31); irq++) {
-		set_irq_chip(irq, &pxa_internal_chip);
-		set_irq_handler(irq, do_level_IRQ);
-		set_irq_flags(irq, IRQF_VALID);
-	}
-	/* Those are reserved */
-	set_irq_flags(PXA_IRQ(15), 0);
-	set_irq_flags(PXA_IRQ(16), 0);
-
 	for (irq = IRQ_GPIO(2); irq <= IRQ_GPIO(80); irq++) {
 		set_irq_chip(irq, &pxa_muxed_gpio_chip);
 		set_irq_handler(irq, do_edge_IRQ);

arch/arm/mach-pxa/lubbock.c

@@ -33,57 +33,41 @@
 
 #include "generic.h"
 
-static void lubbock_ack_irq(unsigned int irq)
-{
-	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
-	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
-}
+
+static unsigned long lubbock_irq_enabled;
 
 static void lubbock_mask_irq(unsigned int irq)
 {
 	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
-	LUB_IRQ_MASK_EN &= ~(1 << lubbock_irq);
+	LUB_IRQ_MASK_EN = (lubbock_irq_enabled &= ~(1 << lubbock_irq));
 }
 
 static void lubbock_unmask_irq(unsigned int irq)
 {
 	int lubbock_irq = (irq - LUBBOCK_IRQ(0));
-	LUB_IRQ_MASK_EN |= (1 << lubbock_irq);
+	/* the irq can be acknowledged only if deasserted, so it's done here */
+	LUB_IRQ_SET_CLR &= ~(1 << lubbock_irq);
+	LUB_IRQ_MASK_EN = (lubbock_irq_enabled |= (1 << lubbock_irq));
 }
 
 static struct irqchip lubbock_irq_chip = {
-	.ack		= lubbock_ack_irq,
+	.ack		= lubbock_mask_irq,
 	.mask		= lubbock_mask_irq,
 	.unmask		= lubbock_unmask_irq,
 };
 
-void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
-			 struct pt_regs *regs)
+static void lubbock_irq_handler(unsigned int irq, struct irqdesc *desc,
+				struct pt_regs *regs)
 {
-	unsigned int enabled, pending;
-
-	/* get active pending irq mask */
-	enabled = LUB_IRQ_MASK_EN & 0x003f;
-	pending = LUB_IRQ_SET_CLR & enabled;
-
+	unsigned long pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
 	do {
-//printk("%s a: set_clr %#x, mask_en %#x LR/DR %d/%d\n", __FUNCTION__, LUB_IRQ_SET_CLR, LUB_IRQ_MASK_EN, GPLR(0)&1, GEDR(0)&1 );
-		/* clear our parent irq */
-		GEDR(0) = GPIO_bit(0);
-
-		/* process them */
-		irq = LUBBOCK_IRQ(0);
-		desc = irq_desc + irq;
-		do {
-			if (pending & 1)
-				desc->handle(irq, desc, regs);
-			irq++;
-			desc++;
-			pending >>= 1;
-		} while (pending);
-//printk("%s b: set_clr %#x, mask_en %#x LR/DR %d/%d\n", __FUNCTION__, LUB_IRQ_SET_CLR, LUB_IRQ_MASK_EN, GPLR(0)&1, GEDR(0)&1 );
-		enabled = LUB_IRQ_MASK_EN & 0x003f;
-		pending = LUB_IRQ_SET_CLR & enabled;
+		GEDR(0) = GPIO_bit(0);	/* clear our parent irq */
+		if (likely(pending)) {
+			irq = LUBBOCK_IRQ(0) + __ffs(pending);
+			desc = irq_desc + irq;
+			desc->handle(irq, desc, regs);
+		}
+		pending = LUB_IRQ_SET_CLR & lubbock_irq_enabled;
 	} while (pending);
 }
 

arch/arm/mach-rpc/dma.c

@@ -83,7 +83,7 @@ static void iomd_get_next_sg(struct scatterlist *sg, dma_t *dma)
 	sg->length |= flags;
 }
 
-static void iomd_dma_handle(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t iomd_dma_handle(int irq, void *dev_id, struct pt_regs *regs)
 {
 	dma_t *dma = (dma_t *)dev_id;
 	unsigned long base = dma->dma_base;
@@ -93,7 +93,7 @@ static void iomd_dma_handle(int irq, void *dev_id, struct pt_regs *regs)
 
 		status = iomd_readb(base + ST);
 		if (!(status & DMA_ST_INT))
-			return;
+			return IRQ_HANDLED;
 
 		if (status & DMA_ST_OFL && !dma->sg)
 			break;
@@ -117,6 +117,8 @@ static void iomd_dma_handle(int irq, void *dev_id, struct pt_regs *regs)
 
 	iomd_writeb(0, dma->dma_base + CR);
 	disable_irq(irq);
+
+	return IRQ_HANDLED;
 }
 
 static int iomd_request_dma(dmach_t channel, dma_t *dma)

arch/arm/mm/consistent.c

@@ -330,7 +330,7 @@ static int __init consistent_init(void)
 core_initcall(consistent_init);
 
 /*
- * make an area consistent for devices.
+ * Make an area consistent for devices.
  */
 void consistent_sync(void *vaddr, size_t size, int direction)
 {

arch/arm/tools/mach-types

@@ -6,7 +6,7 @@
 # To add an entry into this database, please see Documentation/arm/README,
 # or contact rmk@arm.linux.org.uk
 #
-# Last update: Sat Apr 26 11:41:41 2003
+# Last update: Wed May 7 23:43:08 2003
 #
 # machine_is_xxx	CONFIG_xxxx		MACH_TYPE_xxx		number
 #
@@ -328,3 +328,14 @@ m7100			SA1100_M7100		M7100			316
 nipc2			ARCH_NIPC2		NIPC2			317
 fu7202			ARCH_FU7202		FU7202			318
 adsagx			ARCH_ADSAGX		ADSAGX			319
+pxa_pooh		ARCH_PXA_POOH		PXA_POOH		320
+bandon			ARCH_BANDON		BANDON			321
+pcm7210			ARCH_PCM7210		PCM7210			322
+nms9200			ARCH_NMS9200		NMS9200			323
+gealog			ARCH_GEALOG		GEALOG			324
+m7140			SA1100_M7140		M7140			325
+korebot			ARCH_KOREBOT		KOREBOT			326
+iq31244			ARCH_IQ31244		IQ31244			327
+koan393			SA1100_KOAN393		KOAN393			328
+inhandftip3		ARCH_INHANDFTIP3	INHANDFTIP3		329
+gonzo			ARCH_GONZO		GONZO			330

drivers/acorn/net/ether1.c

@@ -68,7 +68,7 @@ static unsigned int net_debug = NET_DEBUG;
 
 static int ether1_open(struct net_device *dev);
 static int ether1_sendpacket(struct sk_buff *skb, struct net_device *dev);
-static void ether1_interrupt(int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t ether1_interrupt(int irq, void *dev_id, struct pt_regs *regs);
 static int ether1_close(struct net_device *dev);
 static struct net_device_stats *ether1_getstats(struct net_device *dev);
 static void ether1_setmulticastlist(struct net_device *dev);
@@ -908,7 +908,7 @@ ether1_recv_done (struct net_device *dev)
 	} while (1);
 }
 
-static void
+static irqreturn_t
 ether1_interrupt (int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = (struct net_device *)dev_id;
@@ -953,7 +953,9 @@ ether1_interrupt (int irq, void *dev_id, struct pt_regs *regs)
 						NORMALIRQS));
 		}
 	} else
-	        outb (CTRL_ACK, REG_CONTROL);
+		outb (CTRL_ACK, REG_CONTROL);
+
+	return IRQ_HANDLED;
 }
 
 static int

drivers/acorn/net/ether3.c

@@ -82,7 +82,7 @@ static int	ether3_rx(struct net_device *dev, struct dev_priv *priv, unsigned int
 static void	ether3_tx(struct net_device *dev, struct dev_priv *priv);
 static int	ether3_open (struct net_device *dev);
 static int	ether3_sendpacket (struct sk_buff *skb, struct net_device *dev);
-static void	ether3_interrupt (int irq, void *dev_id, struct pt_regs *regs);
+static irqreturn_t ether3_interrupt (int irq, void *dev_id, struct pt_regs *regs);
 static int	ether3_close (struct net_device *dev);
 static struct net_device_stats *ether3_getstats (struct net_device *dev);
 static void	ether3_setmulticastlist (struct net_device *dev);
@@ -576,12 +576,12 @@ ether3_sendpacket(struct sk_buff *skb, struct net_device *dev)
 	return 0;
 }
 
-static void
+static irqreturn_t
 ether3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct net_device *dev = (struct net_device *)dev_id;
 	struct dev_priv *priv;
-	unsigned int status;
+	unsigned int status, handled = IRQ_NONE;
 
 #if NET_DEBUG > 1
 	if(net_debug & DEBUG_INT)
@@ -595,17 +595,20 @@ ether3_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	if (status & STAT_INTRX) {
 		ether3_outw(CMD_ACKINTRX | priv->regs.command, REG_COMMAND);
 		ether3_rx(dev, priv, 12);
+		handled = IRQ_HANDLED;
 	}
 
 	if (status & STAT_INTTX) {
 		ether3_outw(CMD_ACKINTTX | priv->regs.command, REG_COMMAND);
 		ether3_tx(dev, priv);
+		handled = IRQ_HANDLED;
 	}
 
 #if NET_DEBUG > 1
 	if(net_debug & DEBUG_INT)
 		printk("done\n");
 #endif
+	return handled;
 }
 
 /*

drivers/acorn/scsi/acornscsi.c

@@ -2466,18 +2466,14 @@ intr_ret_t acornscsi_sbicintr(AS_Host *host, int in_irq)
  *	      dev_id - device specific data (AS_Host structure)
  *	      regs   - processor registers when interrupt occurred
  */
-static
-void acornscsi_intr(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+acornscsi_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
     AS_Host *host = (AS_Host *)dev_id;
     intr_ret_t ret;
     int iostatus;
     int in_irq = 0;
 
-    if (host->scsi.interrupt)
-	printk("scsi%d: interrupt re-entered\n", host->host->host_no);
-    host->scsi.interrupt = 1;
-
     do {
 	ret = INTR_IDLE;
 
@@ -2505,7 +2501,7 @@ void acornscsi_intr(int irq, void *dev_id, struct pt_regs *regs)
 	in_irq = 1;
     } while (ret != INTR_IDLE);
 
-    host->scsi.interrupt = 0;
+    return IRQ_HANDLED;
 }
 
 /*=============================================================================================

drivers/acorn/scsi/cumana_2.c

@@ -141,12 +141,12 @@ cumanascsi_2_terminator_ctl(struct Scsi_Host *host, int on_off)
  *	      dev_id - user-defined (Scsi_Host structure)
  *	      regs   - processor registers at interrupt
  */
-static void
+static irqreturn_t
 cumanascsi_2_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct cumanascsi2_info *info = dev_id;
 
-	fas216_intr(&info->info);
+	return fas216_intr(&info->info);
 }
 
 /* Prototype: fasdmatype_t cumanascsi_2_dma_setup(host, SCpnt, direction, min_type)

drivers/acorn/scsi/eesox.c

@@ -141,12 +141,12 @@ eesoxscsi_terminator_ctl(struct Scsi_Host *host, int on_off)
  *	      dev_id - user-defined (Scsi_Host structure)
  *	      regs   - processor registers at interrupt
  */
-static void
+static irqreturn_t
 eesoxscsi_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct eesoxscsi_info *info = dev_id;
 
-	fas216_intr(&info->info);
+	return fas216_intr(&info->info);
 }
 
 /* Prototype: fasdmatype_t eesoxscsi_dma_setup(host, SCpnt, direction, min_type)

drivers/acorn/scsi/fas216.c

@@ -1824,9 +1824,10 @@ static void fas216_bus_reset(FAS216_Info *info)
  *
  * Handle interrupts from the interface to progress a command
  */
-void fas216_intr(FAS216_Info *info)
+irqreturn_t fas216_intr(FAS216_Info *info)
 {
 	unsigned char isr, ssr, stat;
+	int handled = IRQ_NONE;
 
 	fas216_checkmagic(info);
 
@@ -1857,7 +1858,9 @@ void fas216_intr(FAS216_Info *info)
 		    	fas216_log(info, 0, "unknown interrupt received:"
 				" phase %s isr %02X ssr %02X stat %02X",
 				fas216_drv_phase(info), isr, ssr, stat);
+		handled = IRQ_HANDLED;
 	}
+	return handled;
 }
 
 static void __fas216_start_command(FAS216_Info *info, Scsi_Cmnd *SCpnt)

drivers/acorn/scsi/fas216.h

@@ -351,11 +351,11 @@ extern int fas216_queue_command (Scsi_Cmnd *, void (*done)(Scsi_Cmnd *));
  */
 extern int fas216_command (Scsi_Cmnd *);
 
-/* Function: void fas216_intr (FAS216_Info *info)
+/* Function: irqreturn_t fas216_intr (FAS216_Info *info)
  * Purpose : handle interrupts from the interface to progress a command
  * Params  : info - interface to service
  */
-extern void fas216_intr (FAS216_Info *info);
+extern irqreturn_t fas216_intr (FAS216_Info *info);
 
 extern void fas216_remove (struct Scsi_Host *instance);
 

drivers/acorn/scsi/powertec.c

@@ -113,12 +113,12 @@ powertecscsi_terminator_ctl(struct Scsi_Host *host, int on_off)
  *	      dev_id - user-defined (Scsi_Host structure)
  *	      regs   - processor registers at interrupt
  */
-static void
+static irqreturn_t
 powertecscsi_intr(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct powertec_info *info = dev_id;
 
-	fas216_intr(&info->info);
+	return fas216_intr(&info->info);
 }
 
 /* Prototype: fasdmatype_t powertecscsi_dma_setup(host, SCpnt, direction, min_type)

drivers/char/nwbutton.c

@@ -146,7 +146,7 @@ static void button_sequence_finished (unsigned long parameters)
  *  increments the counter.
  */ 
 
-static void button_handler (int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t button_handler (int irq, void *dev_id, struct pt_regs *regs)
 {
 	if (button_press_count) {
 		del_timer (&button_timer);
@@ -156,6 +156,8 @@ static void button_handler (int irq, void *dev_id, struct pt_regs *regs)
 	button_timer.function = button_sequence_finished;
 	button_timer.expires = (jiffies + bdelay);
 	add_timer (&button_timer);
+
+	return IRQ_HANDLED;
 }
 
 /*

drivers/input/mouse/rpcmouse.c

@@ -49,7 +49,7 @@ static struct input_dev rpcmouse_dev = {
 	},
 };
 
-static void rpcmouse_irq(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpcmouse_irq(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct input_dev *dev = dev_id;
 	short x, y, dx, dy, b;
@@ -74,6 +74,8 @@ static void rpcmouse_irq(int irq, void *dev_id, struct pt_regs *regs)
 	input_report_key(dev, BTN_RIGHT,  b & 0x10);
 
 	input_sync(dev);
+
+	return IRQ_HANDLED;
 }
 
 static int __init rpcmouse_init(void)

drivers/input/serio/ambakmi.c

@@ -28,22 +28,27 @@
 struct amba_kmi_port {
 	struct serio		io;
 	struct amba_kmi_port	*next;
-	unsigned long		base;
+	void			*base;
 	unsigned int		irq;
 	unsigned int		divisor;
 	char			name[32];
 	char			phys[16];
+	struct resource		*res;
 };
 
-static void amba_kmi_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t amba_kmi_int(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct amba_kmi_port *kmi = dev_id;
-	unsigned int status = __raw_readb(KMIIR);
+	unsigned int status = readb(KMIIR);
+	int handled = IRQ_NONE;
 
 	while (status & KMIIR_RXINTR) {
-		serio_interrupt(&kmi->io, __raw_readb(KMIDATA), 0, regs);
-		status = __raw_readb(KMIIR);
+		serio_interrupt(&kmi->io, readb(KMIDATA), 0, regs);
+		status = readb(KMIIR);
+		handled = IRQ_HANDLED;
 	}
+
+	return handled;
 }
 
 static int amba_kmi_write(struct serio *io, unsigned char val)
@@ -51,11 +56,11 @@ static int amba_kmi_write(struct serio *io, unsigned char val)
 	struct amba_kmi_port *kmi = io->driver;
 	unsigned int timeleft = 10000; /* timeout in 100ms */
 
-	while ((__raw_readb(KMISTAT) & KMISTAT_TXEMPTY) == 0 && timeleft--)
+	while ((readb(KMISTAT) & KMISTAT_TXEMPTY) == 0 && timeleft--)
 		udelay(10);
 
 	if (timeleft)
-		__raw_writeb(val, KMIDATA);
+		writeb(val, KMIDATA);
 
 	return timeleft ? 0 : SERIO_TIMEOUT;
 }
@@ -65,17 +70,17 @@ static int amba_kmi_open(struct serio *io)
 	struct amba_kmi_port *kmi = io->driver;
 	int ret;
 
-	__raw_writeb(kmi->divisor, KMICLKDIV);
-	__raw_writeb(KMICR_EN, KMICR);
+	writeb(kmi->divisor, KMICLKDIV);
+	writeb(KMICR_EN, KMICR);
 
 	ret = request_irq(kmi->irq, amba_kmi_int, 0, kmi->phys, kmi);
 	if (ret) {
 		printk(KERN_ERR "kmi: failed to claim IRQ%d\n", kmi->irq);
-		__raw_writeb(0, KMICR);
+		writeb(0, KMICR);
 		return ret;
 	}
 
-	__raw_writeb(KMICR_EN | KMICR_RXINTREN, KMICR);
+	writeb(KMICR_EN | KMICR_RXINTREN, KMICR);
 
 	return 0;
 }
@@ -84,9 +89,9 @@ static void amba_kmi_close(struct serio *io)
 {
 	struct amba_kmi_port *kmi = io->driver;
 
-	free_irq(kmi->irq, kmi);
+	writeb(0, KMICR);
 
-	__raw_writeb(0, KMICR);
+	free_irq(kmi->irq, kmi);
 }
 
 static struct amba_kmi_port *list;
@@ -109,24 +114,36 @@ static int __init amba_kmi_init_one(char *type, unsigned long base, int irq, int
 	kmi->io.phys	= kmi->phys;
 	kmi->io.driver	= kmi;
 
-	kmi->base	= base;
+	snprintf(kmi->name, sizeof(kmi->name), "AMBA KMI PS/2 %s port", type);
+	snprintf(kmi->phys, sizeof(kmi->phys), "amba/serio%d", nr);
+
+	kmi->res	= request_mem_region(base, KMI_SIZE, kmi->phys);
+	if (!kmi->res) {
+		kfree(kmi);
+		return -EBUSY;
+	}
+
+	kmi->base	= ioremap(base, KMI_SIZE);
+	if (!kmi->base) {
+		release_resource(kmi->res);
+		kfree(kmi);
+		return -ENOMEM;
+	}
+
 	kmi->irq	= irq;
 	kmi->divisor	= 24 / 8 - 1;
 
 	kmi->next	= list;
 	list		= kmi;
 
-	snprintf(kmi->name, sizeof(kmi->name), "AMBA KMI PS/2 %s port", type);
-	snprintf(kmi->phys, sizeof(kmi->phys), "amba/serio%d", nr);
-
 	serio_register_port(&kmi->io);
 	return 0;
 }
 
 static int __init amba_kmi_init(void)
 {
-	amba_kmi_init_one("keyboard", IO_ADDRESS(KMI0_BASE), IRQ_KMIINT0, 0);
-	amba_kmi_init_one("mouse", IO_ADDRESS(KMI1_BASE), IRQ_KMIINT1, 1);
+	amba_kmi_init_one("keyboard", KMI0_BASE, IRQ_KMIINT0, 0);
+	amba_kmi_init_one("mouse", KMI1_BASE, IRQ_KMIINT1, 1);
 	return 0;
 }
 
@@ -139,6 +156,8 @@ static void __exit amba_kmi_exit(void)
 		next = kmi->next;
 
 		serio_unregister_port(&kmi->io);
+		iounmap(kmi->base);
+		release_resource(kmi->res);
 		kfree(kmi);
 
 		kmi = next;

drivers/input/serio/rpckbd.c

@@ -54,20 +54,24 @@ static int rpckbd_write(struct serio *port, unsigned char val)
 	return 0;
 }
 
-static void rpckbd_rx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpckbd_rx(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct serio *port = dev_id;
 	unsigned int byte;
+	int handled = IRQ_NONE;
 
 	while (iomd_readb(IOMD_KCTRL) & (1 << 5)) {
 		byte = iomd_readb(IOMD_KARTRX);
 
 		serio_interrupt(port, byte, 0, regs);
+		handled = IRQ_HANDLED;
 	}
+	return handled;
 }
 
-static void rpckbd_tx(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t rpckbd_tx(int irq, void *dev_id, struct pt_regs *regs)
 {
+	return IRQ_HANDLED;
 }
 
 static int rpckbd_open(struct serio *port)

drivers/input/serio/sa1111ps2.c

@@ -41,10 +41,11 @@ struct ps2if {
  * at the most one, but we loop for safety.  If there was a
  * framing error, we have to manually clear the status.
  */
-static void ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct ps2if *ps2if = dev_id;
 	unsigned int scancode, flag, status;
+	int handled = IRQ_NONE;
 
 	status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
 	while (status & PS2STAT_RXF) {
@@ -62,13 +63,17 @@ static void ps2_rxint(int irq, void *dev_id, struct pt_regs *regs)
 		serio_interrupt(&ps2if->io, scancode, flag, regs);
 
                	status = sa1111_readl(ps2if->base + SA1111_PS2STAT);
+
+               	handled = IRQ_HANDLED;
         }
+
+        return handled;
 }
 
 /*
  * Completion of ps2 write
  */
-static void ps2_txint(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ps2_txint(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct ps2if *ps2if = dev_id;
 	unsigned int status;
@@ -83,6 +88,8 @@ static void ps2_txint(int irq, void *dev_id, struct pt_regs *regs)
 		ps2if->tail = (ps2if->tail + 1) & (sizeof(ps2if->buf) - 1);
 	}
 	spin_unlock(&ps2if->lock);
+
+	return IRQ_HANDLED;
 }
 
 /*

drivers/pcmcia/sa11xx_core.c

@@ -120,7 +120,6 @@ sa1100_pcmcia_set_mecr(struct sa1100_pcmcia_socket *skt, unsigned int cpu_clock)
 	unsigned long flags;
 	unsigned short speed;
 	unsigned int bs_io, bs_mem, bs_attr;
-	int i;
 
 	speed = calc_speed(skt->spd_io, MAX_IO_WIN, SA1100_PCMCIA_IO_ACCESS);
 	bs_io = skt->ops->socket_get_timing(skt, cpu_clock, speed);
@@ -324,13 +323,15 @@ static void sa1100_pcmcia_poll_event(unsigned long dummy)
  * handling code performs scheduling operations which cannot be
  * executed from within an interrupt context.
  */
-static void sa1100_pcmcia_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t sa1100_pcmcia_interrupt(int irq, void *dev, struct pt_regs *regs)
 {
 	struct sa1100_pcmcia_socket *skt = dev;
 
 	DEBUG(3, "%s(): servicing IRQ %d\n", __FUNCTION__, irq);
 
 	schedule_work(&skt->work);
+
+	return IRQ_HANDLED;
 }
 
 /* sa1100_pcmcia_register_callback()

drivers/serial/21285.c

@@ -85,7 +85,7 @@ static void serial21285_enable_ms(struct uart_port *port)
 {
 }
 
-static void serial21285_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t serial21285_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct uart_port *port = dev_id;
 	struct tty_struct *tty = port->info->tty;
@@ -97,7 +97,7 @@ static void serial21285_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
 			tty->flip.work.func((void *)tty);
 			if (tty->flip.count >= TTY_FLIPBUF_SIZE) {
 				printk(KERN_WARNING "TTY_DONT_FLIP set\n");
-				return;
+				goto out;
 			}
 		}
 
@@ -143,9 +143,12 @@ static void serial21285_rx_chars(int irq, void *dev_id, struct pt_regs *regs)
 		status = *CSR_UARTFLG;
 	}
 	tty_flip_buffer_push(tty);
+
+ out:
+	return IRQ_HANDLED;
 }
 
-static void serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct uart_port *port = dev_id;
 	struct circ_buf *xmit = &port->info->xmit;
@@ -155,11 +158,11 @@ static void serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *regs)
 		*CSR_UARTDR = port->x_char;
 		port->icount.tx++;
 		port->x_char = 0;
-		return;
+		goto out;
 	}
 	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
 		serial21285_stop_tx(port, 0);
-		return;
+		goto out;
 	}
 
 	do {
@@ -175,6 +178,9 @@ static void serial21285_tx_chars(int irq, void *dev_id, struct pt_regs *regs)
 
 	if (uart_circ_empty(xmit))
 		serial21285_stop_tx(port, 0);
+
+ out:
+	return IRQ_HANDLED;
 }
 
 static unsigned int serial21285_tx_empty(struct uart_port *port)

drivers/serial/amba.c

@@ -278,7 +278,7 @@ static void ambauart_modem_status(struct uart_port *port)
 	wake_up_interruptible(&uap->port.info->delta_msr_wait);
 }
 
-static void ambauart_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t ambauart_int(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct uart_port *port = dev_id;
 	unsigned int status, pass_counter = AMBA_ISR_PASS_LIMIT;
@@ -302,6 +302,8 @@ static void ambauart_int(int irq, void *dev_id, struct pt_regs *regs)
 		status = UART_GET_INT_STATUS(port);
 	} while (status & (AMBA_UARTIIR_RTIS | AMBA_UARTIIR_RIS |
 			   AMBA_UARTIIR_TIS));
+
+	return IRQ_HANDLED;
 }
 
 static unsigned int ambauart_tx_empty(struct uart_port *port)

drivers/serial/sa1100.c

@@ -312,7 +312,7 @@ static void sa1100_tx_chars(struct sa1100_port *sport)
 		sa1100_stop_tx(&sport->port, 0);
 }
 
-static void sa1100_int(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sa1100_int(int irq, void *dev_id, struct pt_regs *regs)
 {
 	struct sa1100_port *sport = dev_id;
 	unsigned int status, pass_counter = 0;
@@ -347,6 +347,8 @@ static void sa1100_int(int irq, void *dev_id, struct pt_regs *regs)
 			  ~UTSR0_TFS;
 	} while (status & (UTSR0_TFS | UTSR0_RFS | UTSR0_RID));
 	spin_unlock(&sport->port.lock);
+
+	return IRQ_HANDLED;
 }
 
 /*
@@ -830,7 +832,7 @@ static struct console sa1100_console = {
 	.setup		= sa1100_console_setup,
 	.flags		= CON_PRINTBUFFER,
 	.index		= -1,
-	.data		= sa1100_reg,
+	.data		= &sa1100_reg,
 };
 
 static int __init sa1100_rs_console_init(void)

include/asm-arm/arch-anakin/time.h

@@ -14,10 +14,11 @@
 #ifndef __ASM_ARCH_TIME_H
 #define __ASM_ARCH_TIME_H
 
-static void
+static irqreturn_t
 anakin_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_timer(regs);
+	return IRQ_HANDLED;
 }
 
 void __init time_init(void)

include/asm-arm/arch-arc/time.h

@@ -14,11 +14,13 @@
  */
 extern void ioctime_init(void);
 
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_timer(regs);
 	do_set_rtc();
 	do_profile(regs);
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-cl7500/time.h

@@ -11,7 +11,8 @@
 
 extern void ioctime_init(void);
 
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_timer(regs);
 	do_set_rtc();
@@ -26,6 +27,7 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 			*((volatile unsigned int *)LED_ADDRESS) = state;
 		}
 	}
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-clps711x/time.h

@@ -25,11 +25,13 @@ extern void clps711x_setup_timer(void);
 /*
  * IRQ handler for the timer
  */
-static void p720t_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+p720t_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_leds();
 	do_timer(regs);
 	do_profile(regs);
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-ebsa110/time.h

@@ -74,7 +74,8 @@ static unsigned long ebsa110_gettimeoffset(void)
 	return offset;
 }
 
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	u32 count;
 
@@ -91,6 +92,8 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	do_leds();
 	do_timer(regs);
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-ebsa285/time.h

@@ -69,7 +69,8 @@ static unsigned long isa_gettimeoffset(void)
 	return count;
 }
 
-static void isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	if (machine_is_netwinder())
 		do_leds();
@@ -77,6 +78,8 @@ static void isa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	do_timer(regs);
 	do_set_rtc();
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 static unsigned long __init get_isa_cmos_time(void)
@@ -186,7 +189,8 @@ static unsigned long timer1_gettimeoffset (void)
 	return ((tick_nsec / 1000) * value) / LATCH;
 }
 
-static void timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	*CSR_TIMER1_CLR = 0;
 
@@ -195,6 +199,8 @@ static void timer1_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	do_timer(regs);
 	do_set_rtc();
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-epxa10db/time.h

@@ -27,7 +27,8 @@
 /*
  * IRQ handler for the timer
  */
-static void excalibur_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+excalibur_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 
 	// ...clear the interrupt
@@ -36,6 +37,8 @@ static void excalibur_timer_interrupt(int irq, void *dev_id, struct pt_regs *reg
 	do_leds();
 	do_timer(regs);
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-integrator/time.h

@@ -98,7 +98,8 @@ static unsigned long integrator_gettimeoffset(void)
 /*
  * IRQ handler for the timer
  */
-static void integrator_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+integrator_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	volatile TimerStruct_t *timer1 = (volatile TimerStruct_t *)TIMER1_VA_BASE;
 
@@ -108,6 +109,8 @@ static void integrator_timer_interrupt(int irq, void *dev_id, struct pt_regs *re
 	do_leds();
 	do_timer(regs);
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-l7200/time.h

@@ -42,11 +42,14 @@
 /*
  * Handler for RTC timer interrupt
  */
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_timer(regs);
 	do_profile(regs);
 	RTC_RTCC = 0;				/* Clear interrupt */
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-nexuspci/time.h

@@ -14,7 +14,8 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	static int count = 25;
 	unsigned char stat = __raw_readb(DUART_BASE + 0x14);
@@ -40,7 +41,9 @@ static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	__raw_readb(DUART_BASE + 0x14);
 	__raw_readb(DUART_BASE + 0x14);
 
-	do_timer(regs);	
+	do_timer(regs);
+
+	return IRQ_HANDLED;
 }
 
 void __init time_init(void)

include/asm-arm/arch-pxa/irqs.h

@@ -10,9 +10,10 @@
  * published by the Free Software Foundation.
  */
 
-#define PXA_IRQ_SKIP	8	/* The first 8 IRQs are reserved */
+#define PXA_IRQ_SKIP	7	/* The first 7 IRQs are not yet used */
 #define PXA_IRQ(x)		((x) - PXA_IRQ_SKIP)
 
+#define IRQ_HWUART	PXA_IRQ(7)	/* HWUART Transmit/Receive/Error */
 #define	IRQ_GPIO0	PXA_IRQ(8)	/* GPIO0 Edge Detect */
 #define	IRQ_GPIO1	PXA_IRQ(9)	/* GPIO1 Edge Detect */
 #define	IRQ_GPIO_2_80	PXA_IRQ(10)	/* GPIO[2-80] Edge Detect */
@@ -20,6 +21,8 @@
 #define	IRQ_PMU		PXA_IRQ(12)	/* Performance Monitoring Unit */
 #define	IRQ_I2S		PXA_IRQ(13)	/* I2S Interrupt */
 #define	IRQ_AC97	PXA_IRQ(14)	/* AC97 Interrupt */
+#define IRQ_ASSP	PXA_IRQ(15)	/* Audio SSP Service Request */
+#define IRQ_NSSP	PXA_IRQ(16)	/* Network SSP Service Request */
 #define	IRQ_LCD		PXA_IRQ(17)	/* LCD Controller Service Request */
 #define	IRQ_I2C		PXA_IRQ(18)	/* I2C Service Request */
 #define	IRQ_ICP		PXA_IRQ(19)	/* ICP Transmit/Receive/Error */

include/asm-arm/arch-pxa/time.h

@@ -47,7 +47,8 @@ static unsigned long pxa_gettimeoffset (void)
 	return usec;
 }
 
-static void pxa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+pxa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	int next_match;
 
@@ -66,6 +67,8 @@ static void pxa_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 		OSSR = OSSR_M0;  /* Clear match on timer 0 */
 		next_match = (OSMR0 += LATCH);
 	} while( (signed long)(next_match - OSCR) <= 0 );
+
+	return IRQ_HANDLED;
 }
 
 void __init time_init(void)

include/asm-arm/arch-rpc/time.h

@@ -14,11 +14,14 @@
  */
 extern void ioctime_init(void);
 
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_timer(regs);
 	do_set_rtc();
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-sa1100/time.h

@@ -72,7 +72,8 @@ static unsigned long sa1100_gettimeoffset (void)
  * lost_ticks (updated in do_timer()) and the match reg value, so we
  * can use do_gettimeofday() from interrupt handlers.
  */
-static void sa1100_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+sa1100_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	unsigned int next_match;
 
@@ -85,6 +86,8 @@ static void sa1100_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	} while ((signed long)(next_match - OSCR) <= 0);
 
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 void __init time_init(void)

include/asm-arm/arch-shark/time.h

@@ -13,11 +13,14 @@
 #define IRQ_TIMER 0
 #define HZ_TIME ((1193180 + HZ/2) / HZ)
 
-static void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 {
 	do_leds();
 	do_timer(regs);
 	do_profile(regs);
+
+	return IRQ_HANDLED;
 }
 
 /*

include/asm-arm/arch-tbox/time.h

@@ -20,13 +20,16 @@
 
 #define update_rtc()
 
-static void timer_interrupt (int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t
+timer_interrupt (int irq, void *dev_id, struct pt_regs *regs)
 {
 	/* Clear irq */
 	__raw_writel(1, FPGA1CONT + 0xc); 
 	__raw_writel(0, FPGA1CONT + 0xc);
 
 	do_timer(regs);
+
+	return IRQ_HANDLED;
 }
 
 void __init time_init(void)

include/asm-arm/bitops.h

@@ -173,7 +173,7 @@ static inline int __test_and_change_bit(int nr, volatile unsigned long *p)
  */
 static inline int __test_bit(int nr, const unsigned long * p)
 {
-	return p[nr >> 5] & (1UL << (nr & 31));
+	return (p[nr >> 5] >> (nr & 31)) & 1UL;
 }
 
 /*
@@ -277,6 +277,8 @@ extern int _find_next_zero_bit_be(void * p, int size, int offset);
 
 #endif
 
+#if __LINUX_ARM_ARCH__ < 5
+
 /*
  * ffz = Find First Zero in word. Undefined if no zero exists,
  * so code should check against ~0UL first..
@@ -326,6 +328,23 @@ static inline unsigned long __ffs(unsigned long word)
 
 #define ffs(x) generic_ffs(x)
 
+#else
+
+/*
+ * On ARMv5 and above those functions can be implemented around
+ * the clz instruction for much better code efficiency.
+ */
+
+extern __inline__ int generic_fls(int x);
+#define fls(x) \
+	( __builtin_constant_p(x) ? generic_fls(x) : \
+	  ({ int __r; asm("clz%?\t%0, %1" : "=r"(__r) : "r"(x)); 32-__r; }) )
+#define ffs(x) ({ unsigned long __t = (x); fls(__t & -__t); })
+#define __ffs(x) (ffs(x) - 1)
+#define ffz(x) __ffs( ~(x) )
+
+#endif
+
 /*
  * Find first bit set in a 168-bit bitmap, where the first
  * 128 bits are unlikely to be set.

include/asm-arm/bugs.h

@@ -10,8 +10,6 @@
 #ifndef __ASM_BUGS_H
 #define __ASM_BUGS_H
 
-#include <asm/proc-fns.h>
-
 #define check_bugs() do { } while (0)
 
 #endif

include/asm-arm/mach/arch.h

@@ -54,39 +54,37 @@ struct machine_desc {
 #define MACHINE_START(_type,_name)		\
 const struct machine_desc __mach_desc_##_type	\
  __attribute__((__section__(".arch.info"))) = {	\
-	nr:		MACH_TYPE_##_type,	\
-	name:		_name,
+	.nr		= MACH_TYPE_##_type,	\
+	.name		= _name,
 
 #define MAINTAINER(n)
 
 #define BOOT_MEM(_pram,_pio,_vio)		\
-	phys_ram:	_pram,	                \
-	phys_io:	_pio,  	                \
-	io_pg_offst:	((_vio)>>18)&0xfffc,
+	.phys_ram	= _pram,		\
+	.phys_io	= _pio,			\
+	.io_pg_offst	= ((_vio)>>18)&0xfffc,
 
 #define BOOT_PARAMS(_params)			\
-	param_offset:	_params,
+	.param_offset	= _params,
 
 #define VIDEO(_start,_end)			\
-	video_start:	_start,			\
-	video_end:	_end,
+	.video_start	= _start,		\
+	.video_end	= _end,
 
 #define DISABLE_PARPORT(_n)			\
-	reserve_lp##_n:	1,
-
-#define BROKEN_HLT /* unused */
+	.reserve_lp##_n	= 1,
 
 #define SOFT_REBOOT				\
-	soft_reboot:	1,
+	.soft_reboot	= 1,
 
 #define FIXUP(_func)				\
-	fixup:		_func,
+	.fixup		= _func,
 
 #define MAPIO(_func)				\
-	map_io:		_func,
+	.map_io		= _func,
 
 #define INITIRQ(_func)				\
-	init_irq:	_func,
+	.init_irq	= _func,
 
 #define MACHINE_END				\
 };

include/asm-arm/processor.h

@@ -74,6 +74,29 @@ unsigned long get_wchan(struct task_struct *p);
  */
 extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
 
+/*
+ * Prefetching support - only ARMv5.
+ */
+#if __LINUX_ARM_ARCH__ >= 5
+
+#define ARCH_HAS_PREFETCH
+#define prefetch(ptr)				\
+	({					\
+		__asm__ __volatile__(		\
+		"pld\t%0"			\
+		:				\
+		: "o" (*(char *)(ptr))		\
+		: "cc");			\
+	})
+
+#define ARCH_HAS_PREFETCHW
+#define prefetchw(ptr)	prefetch(ptr)
+
+#define ARCH_HAS_SPINLOCK_PREFETCH
+#define spin_lock_prefetch(x) do { } while (0)
+
+#endif
+
 #endif
 
 #endif /* __ASM_ARM_PROCESSOR_H */

include/asm-arm/traps.h

+#ifndef _ASMARM_TRAP_H
+#define _ASMARM_TRAP_H
+
+#include <linux/list.h>
+
+struct undef_hook {
+	struct list_head node;
+	u32 instr_mask;
+	u32 instr_val;
+	u32 cpsr_mask;
+	u32 cpsr_val;
+	int (*fn)(struct pt_regs *regs, unsigned int instr);
+};
+
+void register_undef_hook(struct undef_hook *hook);
+void unregister_undef_hook(struct undef_hook *hook);
+
+#endif