Merge bk://linux.bkbits.net/linux-2.5

into hostme.bitkeeper.com:/repos/c/cifs/linux-2.5cifs

Documentation/SubmittingDrivers

@@ -119,7 +119,7 @@ Linux kernel mailing list:
 
 Kernel traffic:
 	Weekly summary of kernel list activity (much easier to read)
-	[http://kt.zork.net/kernel-traffic]
+	http://www.kerneltraffic.org/kernel-traffic/
 
 Linux USB project:
 	http://sourceforge.net/projects/linux-usb/

Documentation/kernel-docs.txt

@@ -694,7 +694,7 @@
        produced during the week. Published every Thursday.
        
      * Name: "Kernel Traffic"
-       URL: http://kt.zork.net/kernel-traffic/
+       URL: http://www.kerneltraffic.org/kernel-traffic/
        Keywords: linux-kernel mailing list, weekly kernel news.
        Description: Weekly newsletter covering the most relevant
        discussions of the linux-kernel mailing list.

MAINTAINERS

@@ -895,21 +895,21 @@ S:	Maintained
 
 HEWLETT-PACKARD FIBRE CHANNEL 64-bit/66MHz PCI non-intelligent HBA
 P:	Chase Maupin
-M:	Chase Maupin (support@compaq.com)
- L:	compaqandlinux@cpqlin.van-dijk.net
- S:	Supported
+M:	chase.maupin@hp.com
+L:	iss_storagedev@hp.com
+S:	Maintained
  
 HEWLETT-PACKARD SMART2 RAID DRIVER
 P:	Francis Wiran
-M:	Francis Wiran <support@compaq.com>
- L:	compaqandlinux@cpqlin.van-dijk.net
- S:	Supported	
+M:	francis.wiran@hp.com
+L:	iss_storagedev@hp.com
+S:	Maintained
  
 HEWLETT-PACKARD SMART CISS RAID DRIVER 
-P:	Mike Miller, Michael Ni
-M:	Mike Miller, Michael Ni <support@compaq.com>
- L:	compaqandlinux@cpqlin.van-dijk.net
- S:	Supported 
+P:	Mike Miller
+M:	mike.miller@hp.com
+L:	iss_storagedev@hp.com
+S:	Supported
  
 HP100:	Driver for HP 10/100 Mbit/s Voice Grade Network Adapter Series
 P:	Jaroslav Kysela

Makefile

 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 6
-EXTRAVERSION =-rc2
+EXTRAVERSION =-rc3
 NAME=Zonked Quokka
 
 # *DOCUMENTATION*

arch/arm/common/dmabounce.c

@@ -636,7 +636,7 @@ dmabounce_unregister_dev(struct device *dev)
 	}
 
 	if (!list_empty(&device_info->safe_buffers)) {
-		printk(KERN_ERR,
+		printk(KERN_ERR
 			"%s: Removing from dmabounce with pending buffers!\n",
 			dev->bus_id);
 		BUG();

arch/arm/kernel/setup.c

@@ -219,9 +219,7 @@ static inline void dump_cache(const char *prefix, unsigned int cache)
 
 static void __init dump_cpu_info(void)
 {
-	unsigned int info;
-
-	asm("mrc p15, 0, %0, c0, c0, 1" : "=r" (info));
+	unsigned int info = read_cpuid(CPUID_CACHETYPE);
 
 	if (info != processor_id) {
 		printk("CPU: D %s cache\n", cache_types[CACHE_TYPE(info)]);
@@ -803,9 +801,7 @@ static int c_show(struct seq_file *m, void *v)
 	seq_printf(m, "CPU revision\t: %d\n", processor_id & 15);
 
 	{
-		unsigned int cache_info;
-
-		asm("mrc p15, 0, %0, c0, c0, 1" : "=r" (cache_info));
+		unsigned int cache_info = read_cpuid(CPUID_CACHETYPE);
 		if (cache_info != processor_id) {
 			seq_printf(m, "Cache type\t: %s\n"
 				      "Cache clean\t: %s\n"

arch/arm/lib/findbit.S

@@ -40,7 +40,7 @@ ENTRY(_find_first_zero_bit_le)
  */
 ENTRY(_find_next_zero_bit_le)
 		teq	r1, #0
-		beq	2b
+		beq	3b
 		ands	ip, r2, #7
 		beq	1b			@ If new byte, goto old routine
 		ldrb	r3, [r0, r2, lsr #3]
@@ -74,7 +74,7 @@ ENTRY(_find_first_bit_le)
  */
 ENTRY(_find_next_bit_le)
 		teq	r1, #0
-		beq	2b
+		beq	3b
 		ands	ip, r2, #7
 		beq	1b			@ If new byte, goto old routine
 		ldrb	r3, [r0, r2, lsr #3]
@@ -101,15 +101,18 @@ ENTRY(_find_first_zero_bit_be)
 		RETINSTR(mov,pc,lr)
 
 ENTRY(_find_next_zero_bit_be)
+		teq	r1, #0
+		beq	3b
 		ands	ip, r2, #7
 		beq	1b			@ If new byte, goto old routine
 		eor	r3, r2, #0x18		@ big endian byte ordering
 		ldrb	r3, [r0, r3, lsr #3]
 		eor	r3, r3, #0xff		@ now looking for a 1 bit
 		movs	r3, r3, lsr ip		@ shift off unused bits
-		orreq	r2, r2, #7		@ if zero, then no bits here
-		addeq	r2, r2, #1		@ align bit pointer
-		beq	2b			@ loop for next bit
+		bne	.found
+		orr	r2, r2, #7		@ if zero, then no bits here
+		add	r2, r2, #1		@ align bit pointer
+		b	2b			@ loop for next bit
 
 ENTRY(_find_first_bit_be)
 		teq	r1, #0
@@ -126,14 +129,17 @@ ENTRY(_find_first_bit_be)
 		RETINSTR(mov,pc,lr)
 
 ENTRY(_find_next_bit_be)
+		teq	r1, #0
+		beq	3b
 		ands	ip, r2, #7
 		beq	1b			@ If new byte, goto old routine
 		eor	r3, r2, #0x18		@ big endian byte ordering
 		ldrb	r3, [r0, r3, lsr #3]
 		movs	r3, r3, lsr ip		@ shift off unused bits
-		orreq	r2, r2, #7		@ if zero, then no bits here
-		addeq	r2, r2, #1		@ align bit pointer
-		beq	2b			@ loop for next bit
+		bne	.found
+		orr	r2, r2, #7		@ if zero, then no bits here
+		add	r2, r2, #1		@ align bit pointer
+		b	2b			@ loop for next bit
 
 #endif
 

arch/arm/mach-pxa/idp.c

@@ -113,7 +113,7 @@ static void __init idp_map_io(void)
 
 MACHINE_START(PXA_IDP, "Accelent Xscale IDP")
 	MAINTAINER("Accelent Systems Inc.")
-	BOOT_MEM(0xa0000000, 0x40000000, 0xfc000000)
+	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
 	MAPIO(idp_map_io)
 	INITIRQ(idp_init_irq)
 	INIT_MACHINE(idp_init)

arch/arm/mach-pxa/leds-lubbock.c

@@ -7,12 +7,10 @@
  *
  * Original (leds-footbridge.c) by Russell King
  *
- * See leds.h for bit definitions.  The first version defines D28 on the
- * Lubbock dev board as the heartbeat, and D27 as the Sys_busy led.
- * There's plenty more if you're interested in adding them :)
+ * Major surgery on April 2004 by Nicolas Pitre for less global
+ * namespace collision.  Mostly adapted the Mainstone version.
  */
 
-
 #include <linux/config.h>
 #include <linux/init.h>
 
@@ -22,6 +20,21 @@
 
 #include "leds.h"
 
+/*
+ * 8 discrete leds available for general use:
+ *
+ * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
+ * so be sure to not monkey with them here.
+ */
+
+#define D28			(1 << 0)
+#define D27			(1 << 1)
+#define D26			(1 << 2)
+#define D25			(1 << 3)
+#define D24			(1 << 4)
+#define D23			(1 << 5)
+#define D22			(1 << 6)
+#define D21			(1 << 7)
 
 #define LED_STATE_ENABLED	1
 #define LED_STATE_CLAIMED	2
@@ -37,7 +50,7 @@ void lubbock_leds_event(led_event_t evt)
 
 	switch (evt) {
 	case led_start:
-		hw_led_state = HEARTBEAT_LED | SYS_BUSY_LED;
+		hw_led_state = 0;
 		led_state = LED_STATE_ENABLED;
 		break;
 
@@ -47,30 +60,27 @@ void lubbock_leds_event(led_event_t evt)
 
 	case led_claim:
 		led_state |= LED_STATE_CLAIMED;
-		hw_led_state = HEARTBEAT_LED | SYS_BUSY_LED;
+		hw_led_state = 0;
 		break;
 
 	case led_release:
 		led_state &= ~LED_STATE_CLAIMED;
-		hw_led_state = HEARTBEAT_LED | SYS_BUSY_LED;
+		hw_led_state = 0;
 		break;
 
 #ifdef CONFIG_LEDS_TIMER
 	case led_timer:
-		if (!(led_state & LED_STATE_CLAIMED))
-			hw_led_state ^= HEARTBEAT_LED;
+		hw_led_state ^= D26;
 		break;
 #endif
 
 #ifdef CONFIG_LEDS_CPU
 	case led_idle_start:
-		if (!(led_state & LED_STATE_CLAIMED))
-			hw_led_state |= SYS_BUSY_LED;
+		hw_led_state &= ~D27;
 		break;
 
 	case led_idle_end:
-		if (!(led_state & LED_STATE_CLAIMED))
-			hw_led_state &= ~SYS_BUSY_LED;
+		hw_led_state |= D27;
 		break;
 #endif
 
@@ -78,29 +88,27 @@ void lubbock_leds_event(led_event_t evt)
 		break;
 
 	case led_green_on:
-		if (led_state & LED_STATE_CLAIMED)
-			hw_led_state &= ~HEARTBEAT_LED;
+		hw_led_state |= D21;;
 		break;
 
 	case led_green_off:
-		if (led_state & LED_STATE_CLAIMED)
-			hw_led_state |= HEARTBEAT_LED;
+		hw_led_state &= ~D21;
 		break;
 
 	case led_amber_on:
+		hw_led_state |= D22;;
 		break;
 
 	case led_amber_off:
+		hw_led_state &= ~D22;
 		break;
 
 	case led_red_on:
-		if (led_state & LED_STATE_CLAIMED)
-			hw_led_state &= ~SYS_BUSY_LED;
+		hw_led_state |= D23;;
 		break;
 
 	case led_red_off:
-		if (led_state & LED_STATE_CLAIMED)
-			hw_led_state |= SYS_BUSY_LED;
+		hw_led_state &= ~D23;
 		break;
 
 	default:
@@ -108,27 +116,9 @@ void lubbock_leds_event(led_event_t evt)
 	}
 
 	if  (led_state & LED_STATE_ENABLED)
-	{
-		switch (hw_led_state) {
-		case 0: // all on
-			HEARTBEAT_LED_ON;
-			SYS_BUSY_LED_ON;
-			break;
-		case 1: // turn off heartbeat, status on:
-			HEARTBEAT_LED_OFF;
-			SYS_BUSY_LED_ON;
-			break;
-		case 2: // status off, heartbeat on:
-			HEARTBEAT_LED_ON;
-			SYS_BUSY_LED_OFF;
-			break;
-		case 3: // turn them both off...
-			HEARTBEAT_LED_OFF;
-			SYS_BUSY_LED_OFF;
-			break;
-		default:
-			break;
-		}
-	}
+		LUB_DISC_BLNK_LED = (LUB_DISC_BLNK_LED | 0xff) & ~hw_led_state;
+	else
+		LUB_DISC_BLNK_LED |= 0xff;
+
 	local_irq_restore(flags);
 }

arch/arm/mach-pxa/lubbock.c

@@ -28,7 +28,6 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
-#include <asm/arch/irq.h>
 #include <asm/arch/udc.h>
 #include <asm/hardware/sa1111.h>
 
@@ -156,11 +155,7 @@ static void __init lubbock_init(void)
 }
 
 static struct map_desc lubbock_io_desc[] __initdata = {
- /* virtual     physical    length      type */
-  { 0xf0000000, 0x08000000, 0x00100000, MT_DEVICE }, /* CPLD */
-  { 0xf1000000, 0x0c000000, 0x00100000, MT_DEVICE }, /* LAN91C96 IO */
-  { 0xf1100000, 0x0e000000, 0x00100000, MT_DEVICE }, /* LAN91C96 Attr */
-  { 0xf4000000, 0x10000000, 0x00800000, MT_DEVICE }, /* SA1111 */
+  { LUBBOCK_FPGA_VIRT, LUBBOCK_FPGA_PHYS, 0x00100000, MT_DEVICE }, /* CPLD */
 };
 
 static void __init lubbock_map_io(void)
@@ -169,7 +164,6 @@ static void __init lubbock_map_io(void)
 	iotable_init(lubbock_io_desc, ARRAY_SIZE(lubbock_io_desc));
 
 	/* This enables the BTUART */
-	CKEN |= CKEN7_BTUART;
 	pxa_gpio_mode(GPIO42_BTRXD_MD);
 	pxa_gpio_mode(GPIO43_BTTXD_MD);
 	pxa_gpio_mode(GPIO44_BTCTS_MD);
@@ -188,7 +182,7 @@ static void __init lubbock_map_io(void)
 	PCFR |= PCFR_OPDE;
 }
 
-MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform")
+MACHINE_START(LUBBOCK, "Intel DBPXA250 Development Platform (aka Lubbock)")
 	MAINTAINER("MontaVista Software Inc.")
 	BOOT_MEM(0xa0000000, 0x40000000, io_p2v(0x40000000))
 	MAPIO(lubbock_map_io)

arch/arm/mm/Makefile

@@ -3,7 +3,7 @@
 #
 
 obj-y				:= consistent.o extable.o fault-armv.o \
-				   fault-common.o init.o ioremap.o mm-armv.o
+				   fault.o init.o ioremap.o mmap.o mm-armv.o
 
 obj-$(CONFIG_MODULES)		+= proc-syms.o
 

arch/arm/mm/fault-armv.c

@@ -10,124 +10,15 @@
  */
 #include <linux/sched.h>
 #include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
 #include <linux/mm.h>
 #include <linux/bitops.h>
 #include <linux/vmalloc.h>
 #include <linux/init.h>
 
 #include <asm/cacheflush.h>
-#include <asm/io.h>
 #include <asm/pgtable.h>
 #include <asm/tlbflush.h>
 
-#include "fault.h"
-
-/*
- * Some section permission faults need to be handled gracefully.
- * They can happen due to a __{get,put}_user during an oops.
- */
-static int
-do_sect_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
-{
-	struct task_struct *tsk = current;
-	do_bad_area(tsk, tsk->active_mm, addr, fsr, regs);
-	return 0;
-}
-
-/*
- * This abort handler always returns "fault".
- */
-static int
-do_bad(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
-{
-	return 1;
-}
-
-static struct fsr_info {
-	int	(*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
-	int	sig;
-	const char *name;
-} fsr_info[] = {
-	/*
-	 * The following are the standard ARMv3 and ARMv4 aborts.  ARMv5
-	 * defines these to be "precise" aborts.
-	 */
-	{ do_bad,		SIGSEGV, "vector exception"		   },
-	{ do_bad,		SIGILL,	 "alignment exception"		   },
-	{ do_bad,		SIGKILL, "terminal exception"		   },
-	{ do_bad,		SIGILL,	 "alignment exception"		   },
-	{ do_bad,		SIGBUS,	 "external abort on linefetch"	   },
-	{ do_translation_fault,	SIGSEGV, "section translation fault"	   },
-	{ do_bad,		SIGBUS,	 "external abort on linefetch"	   },
-	{ do_page_fault,	SIGSEGV, "page translation fault"	   },
-	{ do_bad,		SIGBUS,	 "external abort on non-linefetch" },
-	{ do_bad,		SIGSEGV, "section domain fault"		   },
-	{ do_bad,		SIGBUS,	 "external abort on non-linefetch" },
-	{ do_bad,		SIGSEGV, "page domain fault"		   },
-	{ do_bad,		SIGBUS,	 "external abort on translation"   },
-	{ do_sect_fault,	SIGSEGV, "section permission fault"	   },
-	{ do_bad,		SIGBUS,	 "external abort on translation"   },
-	{ do_page_fault,	SIGSEGV, "page permission fault"	   },
-	/*
-	 * The following are "imprecise" aborts, which are signalled by bit
-	 * 10 of the FSR, and may not be recoverable.  These are only
-	 * supported if the CPU abort handler supports bit 10.
-	 */
-	{ do_bad,		SIGBUS,  "unknown 16"			   },
-	{ do_bad,		SIGBUS,  "unknown 17"			   },
-	{ do_bad,		SIGBUS,  "unknown 18"			   },
-	{ do_bad,		SIGBUS,  "unknown 19"			   },
-	{ do_bad,		SIGBUS,  "lock abort"			   }, /* xscale */
-	{ do_bad,		SIGBUS,  "unknown 21"			   },
-	{ do_bad,		SIGBUS,  "imprecise external abort"	   }, /* xscale */
-	{ do_bad,		SIGBUS,  "unknown 23"			   },
-	{ do_bad,		SIGBUS,  "dcache parity error"		   }, /* xscale */
-	{ do_bad,		SIGBUS,  "unknown 25"			   },
-	{ do_bad,		SIGBUS,  "unknown 26"			   },
-	{ do_bad,		SIGBUS,  "unknown 27"			   },
-	{ do_bad,		SIGBUS,  "unknown 28"			   },
-	{ do_bad,		SIGBUS,  "unknown 29"			   },
-	{ do_bad,		SIGBUS,  "unknown 30"			   },
-	{ do_bad,		SIGBUS,  "unknown 31"			   }
-};
-
-void __init
-hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *),
-		int sig, const char *name)
-{
-	if (nr >= 0 && nr < ARRAY_SIZE(fsr_info)) {
-		fsr_info[nr].fn   = fn;
-		fsr_info[nr].sig  = sig;
-		fsr_info[nr].name = name;
-	}
-}
-
-/*
- * Dispatch a data abort to the relevant handler.
- */
-asmlinkage void
-do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
-{
-	const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6);
-
-	if (!inf->fn(addr, fsr, regs))
-		return;
-
-	printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
-		inf->name, fsr, addr);
-	force_sig(inf->sig, current);
-	show_pte(current->mm, addr);
-	die_if_kernel("Oops", regs, 0);
-}
-
-asmlinkage void
-do_PrefetchAbort(unsigned long addr, struct pt_regs *regs)
-{
-	do_translation_fault(addr, 0, regs);
-}
-
 static unsigned long shared_pte_mask = L_PTE_CACHEABLE;
 
 /*

arch/arm/mm/fault-common.c → arch/arm/mm/fault.c

 /*
- *  linux/arch/arm/mm/fault-common.c
+ *  linux/arch/arm/mm/fault.c
  *
  *  Copyright (C) 1995  Linus Torvalds
- *  Modifications for ARM processor (c) 1995-2001 Russell King
+ *  Modifications for ARM processor (c) 1995-2004 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
@@ -11,11 +11,8 @@
 #include <linux/config.h>
 #include <linux/module.h>
 #include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/string.h>
 #include <linux/ptrace.h>
 #include <linux/mm.h>
-#include <linux/interrupt.h>
 #include <linux/init.h>
 
 #include <asm/system.h>
@@ -25,20 +22,6 @@
 
 #include "fault.h"
 
-#ifdef CONFIG_CPU_26
-#define FAULT_CODE_WRITE	0x02
-#define FAULT_CODE_FORCECOW	0x01
-#define DO_COW(m)		((m) & (FAULT_CODE_WRITE|FAULT_CODE_FORCECOW))
-#define READ_FAULT(m)		(!((m) & FAULT_CODE_WRITE))
-#else
-/*
- * "code" is actually the FSR register.  Bit 11 set means the
- * instruction was performing a write.
- */
-#define DO_COW(code)		((code) & (1 << 11))
-#define READ_FAULT(code)	(!DO_COW(code))
-#endif
-
 /*
  * This is useful to dump out the page tables associated with
  * 'addr' in mm 'mm'.
@@ -186,10 +169,10 @@ __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 	 * memory access, so we can handle it.
 	 */
 good_area:
-	if (READ_FAULT(fsr)) /* read? */
-		mask = VM_READ|VM_EXEC;
-	else
+	if (fsr & (1 << 11)) /* write? */
 		mask = VM_WRITE;
+	else
+		mask = VM_READ|VM_EXEC;
 
 	fault = VM_FAULT_BADACCESS;
 	if (!(vma->vm_flags & mask))
@@ -201,7 +184,7 @@ __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 	 * than endlessly redo the fault.
 	 */
 survive:
-	fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, DO_COW(fsr));
+	fault = handle_mm_fault(mm, vma, addr & PAGE_MASK, fsr & (1 << 11));
 
 	/*
 	 * Handle the "normal" cases first - successful and sigbus
@@ -233,7 +216,8 @@ __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int fsr,
 	return fault;
 }
 
-int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+static int
+do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
@@ -332,7 +316,8 @@ int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
  * interrupt or a critical region, and should only copy the information
  * from the master page table, nothing more.
  */
-int do_translation_fault(unsigned long addr, unsigned int fsr,
+static int
+do_translation_fault(unsigned long addr, unsigned int fsr,
 		     struct pt_regs *regs)
 {
 	struct task_struct *tsk;
@@ -372,3 +357,108 @@ int do_translation_fault(unsigned long addr, unsigned int fsr,
 	do_bad_area(tsk, tsk->active_mm, addr, fsr, regs);
 	return 0;
 }
+
+/*
+ * Some section permission faults need to be handled gracefully.
+ * They can happen due to a __{get,put}_user during an oops.
+ */
+static int
+do_sect_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+	struct task_struct *tsk = current;
+	do_bad_area(tsk, tsk->active_mm, addr, fsr, regs);
+	return 0;
+}
+
+/*
+ * This abort handler always returns "fault".
+ */
+static int
+do_bad(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+	return 1;
+}
+
+static struct fsr_info {
+	int	(*fn)(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
+	int	sig;
+	const char *name;
+} fsr_info[] = {
+	/*
+	 * The following are the standard ARMv3 and ARMv4 aborts.  ARMv5
+	 * defines these to be "precise" aborts.
+	 */
+	{ do_bad,		SIGSEGV, "vector exception"		   },
+	{ do_bad,		SIGILL,	 "alignment exception"		   },
+	{ do_bad,		SIGKILL, "terminal exception"		   },
+	{ do_bad,		SIGILL,	 "alignment exception"		   },
+	{ do_bad,		SIGBUS,	 "external abort on linefetch"	   },
+	{ do_translation_fault,	SIGSEGV, "section translation fault"	   },
+	{ do_bad,		SIGBUS,	 "external abort on linefetch"	   },
+	{ do_page_fault,	SIGSEGV, "page translation fault"	   },
+	{ do_bad,		SIGBUS,	 "external abort on non-linefetch" },
+	{ do_bad,		SIGSEGV, "section domain fault"		   },
+	{ do_bad,		SIGBUS,	 "external abort on non-linefetch" },
+	{ do_bad,		SIGSEGV, "page domain fault"		   },
+	{ do_bad,		SIGBUS,	 "external abort on translation"   },
+	{ do_sect_fault,	SIGSEGV, "section permission fault"	   },
+	{ do_bad,		SIGBUS,	 "external abort on translation"   },
+	{ do_page_fault,	SIGSEGV, "page permission fault"	   },
+	/*
+	 * The following are "imprecise" aborts, which are signalled by bit
+	 * 10 of the FSR, and may not be recoverable.  These are only
+	 * supported if the CPU abort handler supports bit 10.
+	 */
+	{ do_bad,		SIGBUS,  "unknown 16"			   },
+	{ do_bad,		SIGBUS,  "unknown 17"			   },
+	{ do_bad,		SIGBUS,  "unknown 18"			   },
+	{ do_bad,		SIGBUS,  "unknown 19"			   },
+	{ do_bad,		SIGBUS,  "lock abort"			   }, /* xscale */
+	{ do_bad,		SIGBUS,  "unknown 21"			   },
+	{ do_bad,		SIGBUS,  "imprecise external abort"	   }, /* xscale */
+	{ do_bad,		SIGBUS,  "unknown 23"			   },
+	{ do_bad,		SIGBUS,  "dcache parity error"		   }, /* xscale */
+	{ do_bad,		SIGBUS,  "unknown 25"			   },
+	{ do_bad,		SIGBUS,  "unknown 26"			   },
+	{ do_bad,		SIGBUS,  "unknown 27"			   },
+	{ do_bad,		SIGBUS,  "unknown 28"			   },
+	{ do_bad,		SIGBUS,  "unknown 29"			   },
+	{ do_bad,		SIGBUS,  "unknown 30"			   },
+	{ do_bad,		SIGBUS,  "unknown 31"			   }
+};
+
+void __init
+hook_fault_code(int nr, int (*fn)(unsigned long, unsigned int, struct pt_regs *),
+		int sig, const char *name)
+{
+	if (nr >= 0 && nr < ARRAY_SIZE(fsr_info)) {
+		fsr_info[nr].fn   = fn;
+		fsr_info[nr].sig  = sig;
+		fsr_info[nr].name = name;
+	}
+}
+
+/*
+ * Dispatch a data abort to the relevant handler.
+ */
+asmlinkage void
+do_DataAbort(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
+{
+	const struct fsr_info *inf = fsr_info + (fsr & 15) + ((fsr & (1 << 10)) >> 6);
+
+	if (!inf->fn(addr, fsr, regs))
+		return;
+
+	printk(KERN_ALERT "Unhandled fault: %s (0x%03x) at 0x%08lx\n",
+		inf->name, fsr, addr);
+	force_sig(inf->sig, current);
+	show_pte(current->mm, addr);
+	die_if_kernel("Oops", regs, 0);
+}
+
+asmlinkage void
+do_PrefetchAbort(unsigned long addr, struct pt_regs *regs)
+{
+	do_translation_fault(addr, 0, regs);
+}
+

arch/arm/mm/fault.h

@@ -3,8 +3,4 @@ void do_bad_area(struct task_struct *tsk, struct mm_struct *mm,
 
 void show_pte(struct mm_struct *mm, unsigned long addr);
 
-int do_page_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
-
-int do_translation_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs);
-
 unsigned long search_exception_table(unsigned long addr);

arch/arm/mm/ioremap.c

@@ -28,7 +28,8 @@
 #include <asm/io.h>
 #include <asm/tlbflush.h>
 
-static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
+static inline void
+remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
 	       unsigned long phys_addr, pgprot_t pgprot)
 {
 	unsigned long end;
@@ -37,21 +38,25 @@ static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned l
 	end = address + size;
 	if (end > PMD_SIZE)
 		end = PMD_SIZE;
-	if (address >= end)
-		BUG();
+	BUG_ON(address >= end);
 	do {
-		if (!pte_none(*pte)) {
-			printk("remap_area_pte: page already exists\n");
-			BUG();
-		}
+		if (!pte_none(*pte))
+			goto bad;
+
 		set_pte(pte, pfn_pte(phys_addr >> PAGE_SHIFT, pgprot));
 		address += PAGE_SIZE;
 		phys_addr += PAGE_SIZE;
 		pte++;
 	} while (address && (address < end));
+	return;
+
+ bad:
+	printk("remap_area_pte: page already exists\n");
+	BUG();
 }
 
-static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
+static inline int
+remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
 	       unsigned long phys_addr, unsigned long flags)
 {
 	unsigned long end;
@@ -64,8 +69,7 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 		end = PGDIR_SIZE;
 
 	phys_addr -= address;
-	if (address >= end)
-		BUG();
+	BUG_ON(address >= end);
 
 	pgprot = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_WRITE | flags);
 	do {
@@ -79,35 +83,38 @@ static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned lo
 	return 0;
 }
 
-static int remap_area_pages(unsigned long address, unsigned long phys_addr,
+static int
+remap_area_pages(unsigned long start, unsigned long phys_addr,
 		 unsigned long size, unsigned long flags)
 {
-	int error;
+	unsigned long address = start;
+	unsigned long end = start + size;
+	int err = 0;
 	pgd_t * dir;
-	unsigned long end = address + size;
 
 	phys_addr -= address;
 	dir = pgd_offset(&init_mm, address);
-	flush_cache_all();
-	if (address >= end)
-		BUG();
+	BUG_ON(address >= end);
 	spin_lock(&init_mm.page_table_lock);
 	do {
-		pmd_t *pmd;
-		pmd = pmd_alloc(&init_mm, dir, address);
-		error = -ENOMEM;
-		if (!pmd)
+		pmd_t *pmd = pmd_alloc(&init_mm, dir, address);
+		if (!pmd) {
+			err = -ENOMEM;
 			break;
+		}
 		if (remap_area_pmd(pmd, address, end - address,
-					 phys_addr + address, flags))
+					 phys_addr + address, flags)) {
+			err = -ENOMEM;
 			break;
-		error = 0;
+		}
+
 		address = (address + PGDIR_SIZE) & PGDIR_MASK;
 		dir++;
 	} while (address && (address < end));
+
 	spin_unlock(&init_mm.page_table_lock);
-	flush_tlb_all();
-	return error;
+	flush_cache_vmap(start, end);
+	return err;
 }
 
 /*

arch/arm/mm/mmap.c

+/*
+ *  linux/arch/arm/mm/mmap.c
+ */
+#include <linux/config.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/shm.h>
+
+#include <asm/system.h>
+
+#define COLOUR_ALIGN(addr,pgoff)		\
+	((((addr)+SHMLBA-1)&~(SHMLBA-1)) +	\
+	 (((pgoff)<<PAGE_SHIFT) & (SHMLBA-1)))
+
+/*
+ * We need to ensure that shared mappings are correctly aligned to
+ * avoid aliasing issues with VIPT caches.  We need to ensure that
+ * a specific page of an object is always mapped at a multiple of
+ * SHMLBA bytes.
+ *
+ * We unconditionally provide this function for all cases, however
+ * in the VIVT case, we optimise out the alignment rules.
+ */
+unsigned long
+arch_get_unmapped_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff, unsigned long flags)
+{
+	struct mm_struct *mm = current->mm;
+	struct vm_area_struct *vma;
+	unsigned long start_addr;
+#ifdef CONFIG_CPU_V6
+	unsigned int cache_type;
+	int do_align = 0, aliasing = 0;
+
+	/*
+	 * We only need to do colour alignment if either the I or D
+	 * caches alias.  This is indicated by bits 9 and 21 of the
+	 * cache type register.
+	 */
+	cache_type = read_cpuid(CPUID_CACHETYPE);
+	if (cache_type != read_cpuid(CPUID_ID)) {
+		aliasing = (cache_type | cache_type >> 12) & (1 << 9);
+		if (aliasing)
+			do_align = filp || flags & MAP_SHARED;
+	}
+#else
+#define do_align 0
+#define aliasing 0
+#endif
+
+	/*
+	 * We should enforce the MAP_FIXED case.  However, currently
+	 * the generic kernel code doesn't allow us to handle this.
+	 */
+	if (flags & MAP_FIXED) {
+		if (aliasing && flags & MAP_SHARED && addr & (SHMLBA - 1))
+			return -EINVAL;
+		return addr;
+	}
+
+	if (len > TASK_SIZE)
+		return -ENOMEM;
+
+	if (addr) {
+		if (do_align)
+			addr = COLOUR_ALIGN(addr, pgoff);
+		else
+			addr = PAGE_ALIGN(addr);
+
+		vma = find_vma(mm, addr);
+		if (TASK_SIZE - len >= addr &&
+		    (!vma || addr + len <= vma->vm_start))
+			return addr;
+	}
+	start_addr = addr = mm->free_area_cache;
+
+full_search:
+	if (do_align)
+		addr = COLOUR_ALIGN(addr, pgoff);
+	else
+		addr = PAGE_ALIGN(addr);
+
+	for (vma = find_vma(mm, addr); ; vma = vma->vm_next) {
+		/* At this point:  (!vma || addr < vma->vm_end). */
+		if (TASK_SIZE - len < addr) {
+			/*
+			 * Start a new search - just in case we missed
+			 * some holes.
+			 */
+			if (start_addr != TASK_UNMAPPED_BASE) {
+				start_addr = addr = TASK_UNMAPPED_BASE;
+				goto full_search;
+			}
+			return -ENOMEM;
+		}
+		if (!vma || addr + len <= vma->vm_start) {
+			/*
+			 * Remember the place where we stopped the search:
+			 */
+			mm->free_area_cache = addr + len;
+			return addr;
+		}
+		addr = vma->vm_end;
+		if (do_align)
+			addr = COLOUR_ALIGN(addr, pgoff);
+	}
+}
+

arch/arm/mm/proc-xscale.S

@@ -647,6 +647,16 @@ cpu_pxa210_name:
 	.asciz	"XScale-PXA210"
 	.size	cpu_pxa210_name, . - cpu_pxa210_name
 
+	.type	cpu_pxa255_name, #object
+cpu_pxa255_name:
+	.asciz	"XScale-PXA255"
+	.size	cpu_pxa255_name, . - cpu_pxa255_name
+
+	.type	cpu_pxa270_name, #object
+cpu_pxa270_name:
+	.asciz	"XScale-PXA270"
+	.size	cpu_pxa270_name, . - cpu_pxa270_name
+
 	.align
 
 	.section ".proc.info", #alloc, #execinstr
@@ -686,7 +696,7 @@ __80321_proc_info:
 	.type	__pxa250_proc_info,#object
 __pxa250_proc_info:
 	.long	0x69052100
-	.long	0xfffff3f0
+	.long	0xfffff7f0
 	.long	0x00000c0e
 	b	__xscale_setup
 	.long	cpu_arch_name
@@ -715,3 +725,35 @@ __pxa210_proc_info:
 	.long	xscale_cache_fns
 	.size	__pxa210_proc_info, . - __pxa210_proc_info
 
+	.type	__pxa255_proc_info,#object
+__pxa255_proc_info:
+	.long	0x69052d00
+	.long	0xfffffff0
+	.long	0x00000c0e
+	b	__xscale_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_pxa255_name
+	.long	xscale_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	xscale_mc_user_fns
+	.long	xscale_cache_fns
+	.size	__pxa255_proc_info, . - __pxa255_proc_info
+
+	.type	__pxa270_proc_info,#object
+__pxa270_proc_info:
+	.long	0x69054110
+	.long	0xfffffff0
+	.long	0x00000c0e
+	b	__xscale_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_pxa270_name
+	.long	xscale_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	xscale_mc_user_fns
+	.long	xscale_cache_fns
+	.size	__pxa270_proc_info, . - __pxa270_proc_info
+