Merge http://lia64.bkbits.net/to-linus-2.5

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

arch/ia64/Kconfig

@@ -381,6 +381,10 @@ config HUGETLB_PAGE_SIZE_4GB
 	depends on MCKINLEY
 	bool "4GB"
 
+config HUGETLB_PAGE_SIZE_1GB
+	depends on MCKINLEY
+	bool "1GB"
+
 config HUGETLB_PAGE_SIZE_256MB
 	bool "256MB"
 

arch/ia64/Makefile

@@ -23,6 +23,7 @@ cflags-y	:= -pipe $(EXTRA) -ffixed-r13 -mfixed-range=f10-f15,f32-f127 \
 CFLAGS_KERNEL	:= -mconstant-gp
 
 GCC_VERSION=$(shell $(CC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f1 -d'.')
+GCC_MINOR_VERSION=$(shell $(CC) -v 2>&1 | fgrep 'gcc version' | cut -f3 -d' ' | cut -f2 -d'.')
 
 GAS_STATUS=$(shell arch/ia64/scripts/check-gas $(CC) $(OBJDUMP))
 
@@ -35,7 +36,14 @@ $(error Sorry, you need a newer version of the assember, one that is built from
 endif
 
 ifneq ($(GCC_VERSION),2)
-	cflags-y += -frename-registers --param max-inline-insns=5000
+	cflags-$(CONFIG_ITANIUM) += -frename-registers
+endif
+
+ifeq ($(GCC_VERSION),3)
+ ifeq ($(GCC_MINOR_VERSION),4)
+	cflags-$(CONFIG_ITANIUM) += -mtune=merced
+	cflags-$(CONFIG_MCKINLEY) += -mtune=mckinley
+ endif
 endif
 
 cflags-$(CONFIG_ITANIUM_BSTEP_SPECIFIC)	+= -mb-step
@@ -48,14 +56,14 @@ libs-y				+= arch/ia64/lib/
 core-y				+= arch/ia64/kernel/ arch/ia64/mm/
 core-$(CONFIG_IA32_SUPPORT)	+= arch/ia64/ia32/
 core-$(CONFIG_IA64_DIG) 	+= arch/ia64/dig/
-core-$(CONFIG_IA64_GENERIC) 	+= arch/ia64/dig/ arch/ia64/hp/common/ arch/ia64/hp/zx1/ \
-				   arch/ia64/hp/sim/
+core-$(CONFIG_IA64_GENERIC) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_HP_ZX1)	+= arch/ia64/dig/
 core-$(CONFIG_IA64_SGI_SN)	+= arch/ia64/sn/
 
 drivers-$(CONFIG_PCI)		+= arch/ia64/pci/
 drivers-$(CONFIG_IA64_HP_SIM)	+= arch/ia64/hp/sim/
 drivers-$(CONFIG_IA64_HP_ZX1)	+= arch/ia64/hp/common/ arch/ia64/hp/zx1/
+drivers-$(CONFIG_IA64_GENERIC)	+= arch/ia64/hp/common/ arch/ia64/hp/zx1/ arch/ia64/hp/sim/
 
 boot := arch/ia64/boot
 tools := arch/ia64/tools

arch/ia64/dig/machvec.c

-#define MACHVEC_PLATFORM_NAME	dig
+#define MACHVEC_PLATFORM_NAME		dig
+#define MACHVEC_PLATFORM_HEADER		<asm/machvec_dig.h>
 #include <asm/machvec_init.h>

arch/ia64/hp/sim/hpsim_console.c

@@ -59,7 +59,7 @@ simcons_write (struct console *cons, const char *buf, unsigned count)
 
 static struct tty_driver *simcons_console_device (struct console *c, int *index)
 {
-	extern struct tty_driver hp_serial_driver;
+	extern struct tty_driver hp_simserial_driver;
 	*index = c->index;
-	return &hp_serial_driver;
+	return &hp_simserial_driver;
 }

arch/ia64/hp/sim/hpsim_machvec.c

-#define MACHVEC_PLATFORM_NAME	hpsim
+#define MACHVEC_PLATFORM_NAME		hpsim
+#define MACHVEC_PLATFORM_HEADER		<asm/machvec_hpsim.h>
 #include <asm/machvec_init.h>

arch/ia64/hp/sim/simeth.c

@@ -55,7 +55,7 @@ static int simeth_close(struct net_device *dev);
 static int simeth_tx(struct sk_buff *skb, struct net_device *dev);
 static int simeth_rx(struct net_device *dev);
 static struct net_device_stats *simeth_get_stats(struct net_device *dev);
-static void simeth_interrupt(int irq, void *dev_id, struct pt_regs * regs);
+static irqreturn_t simeth_interrupt(int irq, void *dev_id, struct pt_regs * regs);
 static void set_multicast_list(struct net_device *dev);
 static int simeth_device_event(struct notifier_block *this,unsigned long event, void *ptr);
 
@@ -494,20 +494,21 @@ simeth_rx(struct net_device *dev)
 /*
  * Interrupt handler (Yes, we can do it too !!!)
  */
-static void
+static irqreturn_t
 simeth_interrupt(int irq, void *dev_id, struct pt_regs * regs)
 {
 	struct net_device *dev = dev_id;
 
 	if ( dev == NULL ) {
 		printk(KERN_WARNING "simeth: irq %d for unknown device\n", irq);
-		return;
+		return IRQ_NONE;
 	}
 
 	/*
-	 * very simple loop because we get interrupts only when receving
+	 * very simple loop because we get interrupts only when receiving
 	 */
 	while (simeth_rx(dev));
+	return IRQ_HANDLED;
 }
 
 static struct net_device_stats *

arch/ia64/hp/sim/simserial.c

@@ -103,7 +103,8 @@ static struct serial_uart_config uart_config[] = {
 	{ 0, 0}
 };
 
-static struct tty_driver hp_serial_driver, callout_driver;
+struct tty_driver hp_simserial_driver;
+static struct tty_driver callout_driver;
 static int serial_refcount;
 
 static struct async_struct *IRQ_ports[NR_IRQS];
@@ -184,7 +185,7 @@ static  void receive_chars(struct tty_struct *tty, struct pt_regs *regs)
 /*
  * This is the serial driver's interrupt routine for a single port
  */
-static void rs_interrupt_single(int irq, void *dev_id, struct pt_regs * regs)
+static irqreturn_t rs_interrupt_single(int irq, void *dev_id, struct pt_regs * regs)
 {
 	struct async_struct * info;
 
@@ -195,13 +196,14 @@ static void rs_interrupt_single(int irq, void *dev_id, struct pt_regs * regs)
 	info = IRQ_ports[irq];
 	if (!info || !info->tty) {
 		printk(KERN_INFO "simrs_interrupt_single: info|tty=0 info=%p problem\n", info);
-		return;
+		return IRQ_NONE;
 	}
 	/*
 	 * pretty simple in our case, because we only get interrupts
 	 * on inbound traffic
 	 */
 	receive_chars(info->tty, regs);
+	return IRQ_HANDLED;
 }
 
 /*
@@ -768,7 +770,7 @@ startup(struct async_struct *info)
 {
 	unsigned long flags;
 	int	retval=0;
-	void (*handler)(int, void *, struct pt_regs *);
+	irqreturn_t (*handler)(int, void *, struct pt_regs *);
 	struct serial_state *state= info->state;
 	unsigned long page;
 
@@ -808,8 +810,7 @@ startup(struct async_struct *info)
 		} else
 			handler = rs_interrupt_single;
 
-		retval = request_irq(state->irq, handler, IRQ_T(info),
-				     "simserial", NULL);
+		retval = request_irq(state->irq, handler, IRQ_T(info), "simserial", NULL);
 		if (retval) {
 			if (capable(CAP_SYS_ADMIN)) {
 				if (info->tty)
@@ -1028,43 +1029,43 @@ simrs_init (void)
 
 	/* Initialize the tty_driver structure */
 
-	memset(&hp_serial_driver, 0, sizeof(struct tty_driver));
-	hp_serial_driver.magic = TTY_DRIVER_MAGIC;
-	hp_serial_driver.driver_name = "simserial";
-	hp_serial_driver.name = "ttyS";
-	hp_serial_driver.major = TTY_MAJOR;
-	hp_serial_driver.minor_start = 64;
-	hp_serial_driver.num = 1;
-	hp_serial_driver.type = TTY_DRIVER_TYPE_SERIAL;
-	hp_serial_driver.subtype = SERIAL_TYPE_NORMAL;
-	hp_serial_driver.init_termios = tty_std_termios;
-	hp_serial_driver.init_termios.c_cflag =
+	memset(&hp_simserial_driver, 0, sizeof(struct tty_driver));
+	hp_simserial_driver.magic = TTY_DRIVER_MAGIC;
+	hp_simserial_driver.driver_name = "simserial";
+	hp_simserial_driver.name = "ttyS";
+	hp_simserial_driver.major = TTY_MAJOR;
+	hp_simserial_driver.minor_start = 64;
+	hp_simserial_driver.num = 1;
+	hp_simserial_driver.type = TTY_DRIVER_TYPE_SERIAL;
+	hp_simserial_driver.subtype = SERIAL_TYPE_NORMAL;
+	hp_simserial_driver.init_termios = tty_std_termios;
+	hp_simserial_driver.init_termios.c_cflag =
 		B9600 | CS8 | CREAD | HUPCL | CLOCAL;
-	hp_serial_driver.flags = TTY_DRIVER_REAL_RAW;
-	hp_serial_driver.refcount = &serial_refcount;
-	hp_serial_driver.table = serial_table;
-	hp_serial_driver.termios = serial_termios;
-	hp_serial_driver.termios_locked = serial_termios_locked;
-
-	hp_serial_driver.open = rs_open;
-	hp_serial_driver.close = rs_close;
-	hp_serial_driver.write = rs_write;
-	hp_serial_driver.put_char = rs_put_char;
-	hp_serial_driver.flush_chars = rs_flush_chars;
-	hp_serial_driver.write_room = rs_write_room;
-	hp_serial_driver.chars_in_buffer = rs_chars_in_buffer;
-	hp_serial_driver.flush_buffer = rs_flush_buffer;
-	hp_serial_driver.ioctl = rs_ioctl;
-	hp_serial_driver.throttle = rs_throttle;
-	hp_serial_driver.unthrottle = rs_unthrottle;
-	hp_serial_driver.send_xchar = rs_send_xchar;
-	hp_serial_driver.set_termios = rs_set_termios;
-	hp_serial_driver.stop = rs_stop;
-	hp_serial_driver.start = rs_start;
-	hp_serial_driver.hangup = rs_hangup;
-	hp_serial_driver.break_ctl = rs_break;
-	hp_serial_driver.wait_until_sent = rs_wait_until_sent;
-	hp_serial_driver.read_proc = rs_read_proc;
+	hp_simserial_driver.flags = TTY_DRIVER_REAL_RAW;
+	hp_simserial_driver.refcount = &serial_refcount;
+	hp_simserial_driver.table = serial_table;
+	hp_simserial_driver.termios = serial_termios;
+	hp_simserial_driver.termios_locked = serial_termios_locked;
+
+	hp_simserial_driver.open = rs_open;
+	hp_simserial_driver.close = rs_close;
+	hp_simserial_driver.write = rs_write;
+	hp_simserial_driver.put_char = rs_put_char;
+	hp_simserial_driver.flush_chars = rs_flush_chars;
+	hp_simserial_driver.write_room = rs_write_room;
+	hp_simserial_driver.chars_in_buffer = rs_chars_in_buffer;
+	hp_simserial_driver.flush_buffer = rs_flush_buffer;
+	hp_simserial_driver.ioctl = rs_ioctl;
+	hp_simserial_driver.throttle = rs_throttle;
+	hp_simserial_driver.unthrottle = rs_unthrottle;
+	hp_simserial_driver.send_xchar = rs_send_xchar;
+	hp_simserial_driver.set_termios = rs_set_termios;
+	hp_simserial_driver.stop = rs_stop;
+	hp_simserial_driver.start = rs_start;
+	hp_simserial_driver.hangup = rs_hangup;
+	hp_simserial_driver.break_ctl = rs_break;
+	hp_simserial_driver.wait_until_sent = rs_wait_until_sent;
+	hp_simserial_driver.read_proc = rs_read_proc;
 
 	/*
 	 * Let's have a little bit of fun !
@@ -1087,14 +1088,14 @@ simrs_init (void)
 	 * The callout device is just like normal device except for
 	 * major number and the subtype code.
 	 */
-	callout_driver = hp_serial_driver;
+	callout_driver = hp_simserial_driver;
 	callout_driver.name = "cua";
 	callout_driver.major = TTYAUX_MAJOR;
 	callout_driver.subtype = SERIAL_TYPE_CALLOUT;
 	callout_driver.read_proc = 0;
 	callout_driver.proc_entry = 0;
 
-	if (tty_register_driver(&hp_serial_driver))
+	if (tty_register_driver(&hp_simserial_driver))
 		panic("Couldn't register simserial driver\n");
 
 	if (tty_register_driver(&callout_driver))

arch/ia64/hp/zx1/Makefile

@@ -5,5 +5,4 @@
 # Copyright (C) Alex Williamson (alex_williamson@hp.com)
 #
 
-obj-y := hpzx1_misc.o
 obj-$(CONFIG_IA64_GENERIC) += hpzx1_machvec.o

arch/ia64/hp/zx1/hpzx1_machvec.c

-#define MACHVEC_PLATFORM_NAME	hpzx1
+#define MACHVEC_PLATFORM_NAME		hpzx1
+#define MACHVEC_PLATFORM_HEADER		<asm/machvec_hpzx1.h>
 #include <asm/machvec_init.h>

arch/ia64/hp/zx1/hpzx1_misc.c

-/*
- * Misc. support for HP zx1 chipset support
- *
- * Copyright (C) 2002-2003 Hewlett-Packard Co
- *	Alex Williamson <alex_williamson@hp.com>
- *	Bjorn Helgaas <bjorn_helgaas@hp.com>
- */
-
-
-#include <linux/config.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/acpi.h>
-#include <linux/efi.h>
-
-#include <asm/dma.h>
-#include <asm/iosapic.h>
-
-extern acpi_status acpi_evaluate_integer (acpi_handle, acpi_string, struct acpi_object_list *,
-					  unsigned long *);
-
-#define PFX "hpzx1: "
-
-static int hpzx1_devices;
-
-struct fake_pci_dev {
-	struct fake_pci_dev *next;
-	struct pci_dev *pci_dev;
-	unsigned long csr_base;
-	unsigned long csr_size;
-	unsigned long mapped_csrs;	// ioremapped
-	int sizing;			// in middle of BAR sizing operation?
-} *fake_pci_dev_list;
-
-static struct pci_ops *orig_pci_ops;
-
-struct fake_pci_dev *
-lookup_fake_dev (struct pci_bus *bus, unsigned int devfn)
-{
-	struct fake_pci_dev *fake_dev;
-
-	for (fake_dev = fake_pci_dev_list; fake_dev; fake_dev = fake_dev->next)
-		if (fake_dev->pci_dev->bus == bus && fake_dev->pci_dev->devfn == devfn)
-			return fake_dev;
-	return NULL;
-}
-
-static int
-hp_cfg_read (struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value)
-{
-	struct fake_pci_dev *fake_dev = lookup_fake_dev(bus, devfn);
-
-	if (!fake_dev)
-		return (*orig_pci_ops->read)(bus, devfn, where, size, value);
-
-	if (where == PCI_BASE_ADDRESS_0) {
-		if (fake_dev->sizing)
-			*value = ~(fake_dev->csr_size - 1);
-		else
-			*value = ((fake_dev->csr_base & PCI_BASE_ADDRESS_MEM_MASK)
-				  | PCI_BASE_ADDRESS_SPACE_MEMORY);
-		fake_dev->sizing = 0;
-		return PCIBIOS_SUCCESSFUL;
-	}
-	switch (size) {
-	      case 1: *value = readb(fake_dev->mapped_csrs + where); break;
-	      case 2: *value = readw(fake_dev->mapped_csrs + where); break;
-	      case 4: *value = readl(fake_dev->mapped_csrs + where); break;
-	      default:
-		printk(KERN_WARNING"hp_cfg_read: bad size = %d bytes", size);
-		break;
-	}
-	if (where == PCI_COMMAND)
-		*value |= PCI_COMMAND_MEMORY; /* SBA omits this */
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-hp_cfg_write (struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value)
-{
-	struct fake_pci_dev *fake_dev = lookup_fake_dev(bus, devfn);
-
-	if (!fake_dev)
-		return (*orig_pci_ops->write)(bus, devfn, where, size, value);
-
-	if (where == PCI_BASE_ADDRESS_0) {
-		if (value == ((1UL << 8*size) - 1))
-			fake_dev->sizing = 1;
-		return PCIBIOS_SUCCESSFUL;
-	}
-	switch (size) {
-	      case 1: writeb(value, fake_dev->mapped_csrs + where); break;
-	      case 2: writew(value, fake_dev->mapped_csrs + where); break;
-	      case 4: writel(value, fake_dev->mapped_csrs + where); break;
-	      default:
-		printk(KERN_WARNING"hp_cfg_write: bad size = %d bytes", size);
-		break;
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops hp_pci_conf = {
-	.read =		hp_cfg_read,
-	.write =	hp_cfg_write
-};
-
-static void
-hpzx1_fake_pci_dev(char *name, unsigned int busnum, unsigned long addr, unsigned int size)
-{
-	struct fake_pci_dev *fake;
-	int slot, ret;
-	struct pci_dev *dev;
-	struct pci_bus *b, *bus = NULL;
-	u8 hdr;
-
-        fake = kmalloc(sizeof(*fake), GFP_KERNEL);
-	if (!fake) {
-		printk(KERN_ERR PFX "No memory for %s (0x%p) sysdata\n", name, (void *) addr);
-		return;
-	}
-
-	memset(fake, 0, sizeof(*fake));
-	fake->csr_base = addr;
-	fake->csr_size = size;
-	fake->mapped_csrs = (unsigned long) ioremap(addr, size);
-	fake->sizing = 0;
-
-	pci_for_each_bus(b)
-		if (busnum == b->number) {
-			bus = b;
-			break;
-		}
-
-	if (!bus) {
-		printk(KERN_ERR PFX "No host bus 0x%02x for %s (0x%p)\n",
-		       busnum, name, (void *) addr);
-		kfree(fake);
-		return;
-	}
-
-	for (slot = 0x1e; slot; slot--)
-		if (!pci_find_slot(busnum, PCI_DEVFN(slot, 0)))
-			break;
-
-	if (slot < 0) {
-		printk(KERN_ERR PFX "No space for %s (0x%p) on bus 0x%02x\n",
-		       name, (void *) addr, busnum);
-		kfree(fake);
-		return;
-	}
-
-        dev = kmalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev) {
-		printk(KERN_ERR PFX "No memory for %s (0x%p)\n", name, (void *) addr);
-		kfree(fake);
-		return;
-	}
-
-	bus->ops = &hp_pci_conf;	// replace pci ops for this bus
-
-	fake->pci_dev = dev;
-	fake->next = fake_pci_dev_list;
-	fake_pci_dev_list = fake;
-
-	memset(dev, 0, sizeof(*dev));
-	dev->bus = bus;
-	dev->sysdata = fake;
-	dev->dev.parent = bus->dev;
-	dev->dev.bus = &pci_bus_type;
-	dev->devfn = PCI_DEVFN(slot, 0);
-	pci_read_config_word(dev, PCI_VENDOR_ID, &dev->vendor);
-	pci_read_config_word(dev, PCI_DEVICE_ID, &dev->device);
-	pci_read_config_byte(dev, PCI_HEADER_TYPE, &hdr);
-	dev->hdr_type = hdr & 0x7f;
-
-	pci_setup_device(dev);
-
-	// pci_insert_device() without running /sbin/hotplug
-	list_add_tail(&dev->bus_list, &bus->devices);
-	list_add_tail(&dev->global_list, &pci_devices);
-
-	strcpy(dev->dev.bus_id, dev->slot_name);
-	ret = device_register(&dev->dev);
-	if (ret < 0)
-		printk(KERN_INFO PFX "fake device registration failed (%d)\n", ret);
-
-	printk(KERN_INFO PFX "%s at 0x%lx; pci dev %s\n", name, addr, dev->slot_name);
-
-	hpzx1_devices++;
-}
-
-struct acpi_hp_vendor_long {
-	u8	guid_id;
-	u8	guid[16];
-	u8	csr_base[8];
-	u8	csr_length[8];
-};
-
-#define HP_CCSR_LENGTH	0x21
-#define HP_CCSR_TYPE	0x2
-#define HP_CCSR_GUID	EFI_GUID(0x69e9adf9, 0x924f, 0xab5f,				\
-				 0xf6, 0x4a, 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad)
-
-extern acpi_status acpi_get_crs(acpi_handle, struct acpi_buffer *);
-extern struct acpi_resource *acpi_get_crs_next(struct acpi_buffer *, int *);
-extern union acpi_resource_data *acpi_get_crs_type(struct acpi_buffer *, int *, int);
-extern void acpi_dispose_crs(struct acpi_buffer *);
-
-static acpi_status
-hp_csr_space(acpi_handle obj, u64 *csr_base, u64 *csr_length)
-{
-	int i, offset = 0;
-	acpi_status status;
-	struct acpi_buffer buf;
-	struct acpi_resource_vendor *res;
-	struct acpi_hp_vendor_long *hp_res;
-	efi_guid_t vendor_guid;
-
-	*csr_base = 0;
-	*csr_length = 0;
-
-	status = acpi_get_crs(obj, &buf);
-	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR PFX "Unable to get _CRS data on object\n");
-		return status;
-	}
-
-	res = (struct acpi_resource_vendor *)acpi_get_crs_type(&buf, &offset, ACPI_RSTYPE_VENDOR);
-	if (!res) {
-		printk(KERN_ERR PFX "Failed to find config space for device\n");
-		acpi_dispose_crs(&buf);
-		return AE_NOT_FOUND;
-	}
-
-	hp_res = (struct acpi_hp_vendor_long *)(res->reserved);
-
-	if (res->length != HP_CCSR_LENGTH || hp_res->guid_id != HP_CCSR_TYPE) {
-		printk(KERN_ERR PFX "Unknown Vendor data\n");
-		acpi_dispose_crs(&buf);
-		return AE_TYPE; /* Revisit error? */
-	}
-
-	memcpy(&vendor_guid, hp_res->guid, sizeof(efi_guid_t));
-	if (efi_guidcmp(vendor_guid, HP_CCSR_GUID) != 0) {
-		printk(KERN_ERR PFX "Vendor GUID does not match\n");
-		acpi_dispose_crs(&buf);
-		return AE_TYPE; /* Revisit error? */
-	}
-
-	for (i = 0 ; i < 8 ; i++) {
-		*csr_base |= ((u64)(hp_res->csr_base[i]) << (i * 8));
-		*csr_length |= ((u64)(hp_res->csr_length[i]) << (i * 8));
-	}
-
-	acpi_dispose_crs(&buf);
-
-	return AE_OK;
-}
-
-static acpi_status
-hpzx1_sba_probe(acpi_handle obj, u32 depth, void *context, void **ret)
-{
-	u64 csr_base = 0, csr_length = 0;
-	acpi_status status;
-	char *name = context;
-	char fullname[16];
-
-	status = hp_csr_space(obj, &csr_base, &csr_length);
-	if (ACPI_FAILURE(status))
-		return status;
-
-	/*
-	 * Only SBA shows up in ACPI namespace, so its CSR space
-	 * includes both SBA and IOC.  Make SBA and IOC show up
-	 * separately in PCI space.
-	 */
-	sprintf(fullname, "%s SBA", name);
-	hpzx1_fake_pci_dev(fullname, 0, csr_base, 0x1000);
-	sprintf(fullname, "%s IOC", name);
-	hpzx1_fake_pci_dev(fullname, 0, csr_base + 0x1000, 0x1000);
-
-	return AE_OK;
-}
-
-static acpi_status
-hpzx1_lba_probe(acpi_handle obj, u32 depth, void *context, void **ret)
-{
-	u64 csr_base = 0, csr_length = 0;
-	acpi_status status;
-	acpi_native_uint busnum;
-	char *name = context;
-	char fullname[32];
-
-	status = hp_csr_space(obj, &csr_base, &csr_length);
-	if (ACPI_FAILURE(status))
-		return status;
-
-	status = acpi_evaluate_integer(obj, METHOD_NAME__BBN, NULL, &busnum);
-	if (ACPI_FAILURE(status)) {
-		printk(KERN_WARNING PFX "evaluate _BBN fail=0x%x\n", status);
-		busnum = 0;	// no _BBN; stick it on bus 0
-	}
-
-	sprintf(fullname, "%s _BBN 0x%02x", name, (unsigned int) busnum);
-	hpzx1_fake_pci_dev(fullname, busnum, csr_base, csr_length);
-
-	return AE_OK;
-}
-
-static void
-hpzx1_acpi_dev_init(void)
-{
-	extern struct pci_ops *pci_root_ops;
-
-	orig_pci_ops = pci_root_ops;
-
-	/*
-	 * Make fake PCI devices for the following hardware in the
-	 * ACPI namespace.  This makes it more convenient for drivers
-	 * because they can claim these devices based on PCI
-	 * information, rather than needing to know about ACPI.  The
-	 * 64-bit "HPA" space for this hardware is available as BAR
-	 * 0/1.
-	 *
-	 * HWP0001: Single IOC SBA w/o IOC in namespace
-	 * HWP0002: LBA device
-	 * HWP0003: AGP LBA device
-	 */
-	acpi_get_devices("HWP0001", hpzx1_sba_probe, "HWP0001", NULL);
-	acpi_get_devices("HWP0002", hpzx1_lba_probe, "HWP0002 PCI LBA", NULL);
-	acpi_get_devices("HWP0003", hpzx1_lba_probe, "HWP0003 AGP LBA", NULL);
-}
-
-extern void sba_init(void);
-
-static int
-hpzx1_init (void)
-{
-	/* zx1 has a hardware I/O TLB which lets us DMA from any device to any address */
-	MAX_DMA_ADDRESS = ~0UL;
-
-	hpzx1_acpi_dev_init();
-	sba_init();
-	return 0;
-}
-
-subsys_initcall(hpzx1_init);

arch/ia64/ia32/ia32_entry.S

@@ -273,9 +273,9 @@ ia32_syscall_table:
 	data8 sys32_sigsuspend
 	data8 compat_sys_sigpending
 	data8 sys_sethostname
-	data8 sys32_setrlimit	  /* 75 */
-	data8 sys32_old_getrlimit
-	data8 sys32_getrusage
+	data8 compat_sys_setrlimit	  /* 75 */
+	data8 compat_sys_old_getrlimit
+	data8 compat_sys_getrusage
 	data8 sys32_gettimeofday
 	data8 sys32_settimeofday
 	data8 sys32_getgroups16	  /* 80 */
@@ -312,7 +312,7 @@ ia32_syscall_table:
 	data8 sys_vhangup
 	data8 sys32_ni_syscall		/* used to be sys_idle */
 	data8 sys32_ni_syscall
-	data8 sys32_wait4
+	data8 compat_sys_wait4
 	data8 sys_swapoff	  /* 115 */
 	data8 sys32_sysinfo
 	data8 sys32_ipc
@@ -389,7 +389,7 @@ ia32_syscall_table:
 	data8 sys32_ni_syscall		  /* streams1 */
 	data8 sys32_ni_syscall		  /* streams2 */
 	data8 sys32_vfork	  /* 190 */
-	data8 sys32_getrlimit
+	data8 compat_sys_getrlimit
 	data8 sys32_mmap2
 	data8 sys32_truncate64
 	data8 sys32_ftruncate64

arch/ia64/ia32/ia32_ioctl.c

@@ -3,13 +3,16 @@
  *
  * Copyright (C) 2000 VA Linux Co
  * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
- * Copyright (C) 2001-2002 Hewlett-Packard Co
+ * Copyright (C) 2001-2003 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  */
 
 #include <linux/types.h>
 #include <linux/dirent.h>
 #include <linux/fs.h>		/* argh, msdos_fs.h isn't self-contained... */
+#include <linux/signal.h>	/* argh, msdos_fs.h isn't self-contained... */
+
+#include <asm/ia32.h>
 
 #include <linux/msdos_fs.h>
 #include <linux/mtio.h>
@@ -33,8 +36,6 @@
 #define	__KERNEL__
 #include <scsi/sg.h>
 
-#include <asm/ia32.h>
-
 #include <../drivers/char/drm/drm.h>
 #include <../drivers/char/drm/mga_drm.h>
 #include <../drivers/char/drm/i810_drm.h>

arch/ia64/ia32/ia32_traps.c

@@ -103,7 +103,7 @@ ia32_exception (struct pt_regs *regs, unsigned long isr)
 			 * C1 reg you need in case of a stack fault, 0x040 is the stack
 			 * fault bit.  We should only be taking one exception at a time,
 			 * so if this combination doesn't produce any single exception,
-			 * then we have a bad program that isn't syncronizing its FPU usage
+			 * then we have a bad program that isn't synchronizing its FPU usage
 			 * and it will suffer the consequences since we won't be able to
 			 * fully reproduce the context of the exception
 			 */

arch/ia64/ia32/sys_ia32.c

@@ -53,10 +53,10 @@
 #include <asm/types.h>
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
+#include <asm/ia32.h>
 
 #include <net/scm.h>
 #include <net/sock.h>
-#include <asm/ia32.h>
 
 #define DEBUG	0
 
@@ -177,7 +177,7 @@ int cp_compat_stat(struct kstat *stat, struct compat_stat *ubuf)
 {
 	int err;
 
-	if (stat->size > MAX_NON_LFS)
+	if ((u64) stat->size > MAX_NON_LFS)
 		return -EOVERFLOW;
 
 	if (clear_user(ubuf, sizeof(*ubuf)))
@@ -243,8 +243,7 @@ mmap_subpage (struct file *file, unsigned long start, unsigned long end, int pro
 		return -ENOMEM;
 
 	if (old_prot)
-		if (copy_from_user(page, (void *) PAGE_START(start), PAGE_SIZE))
-			return -EFAULT;
+		copy_from_user(page, (void *) PAGE_START(start), PAGE_SIZE);
 
 	down_write(&current->mm->mmap_sem);
 	{
@@ -837,8 +836,9 @@ sys32_select (int n, fd_set *inp, fd_set *outp, fd_set *exp, struct compat_timev
 		}
 	}
 
+	size = FDS_BYTES(n);
 	ret = -EINVAL;
-	if (n < 0)
+	if (n < 0 || size < n)
 		goto out_nofds;
 
 	if (n > current->files->max_fdset)
@@ -850,7 +850,6 @@ sys32_select (int n, fd_set *inp, fd_set *outp, fd_set *exp, struct compat_timev
 	 * long-words.
 	 */
 	ret = -ENOMEM;
-	size = FDS_BYTES(n);
 	bits = kmalloc(6 * size, GFP_KERNEL);
 	if (!bits)
 		goto out_nofds;
@@ -928,8 +927,7 @@ asmlinkage ssize_t sys_writev (unsigned long,const struct iovec *,unsigned long)
 static struct iovec *
 get_compat_iovec (struct compat_iovec *iov32, struct iovec *iov_buf, u32 count, int type)
 {
-	int i;
-	u32 buf, len;
+	u32 i, buf, len;
 	struct iovec *ivp, *iov;
 
 	/* Get the "struct iovec" from user memory */
@@ -1005,77 +1003,6 @@ sys32_writev (int fd, struct compat_iovec *vector, u32 count)
 	return ret;
 }
 
-#define RLIM_INFINITY32	0x7fffffff
-#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
-
-struct rlimit32 {
-	int	rlim_cur;
-	int	rlim_max;
-};
-
-extern asmlinkage long sys_getrlimit (unsigned int resource, struct rlimit *rlim);
-
-asmlinkage long
-sys32_old_getrlimit (unsigned int resource, struct rlimit32 *rlim)
-{
-	mm_segment_t old_fs = get_fs();
-	struct rlimit r;
-	int ret;
-
-	set_fs(KERNEL_DS);
-	ret = sys_getrlimit(resource, &r);
-	set_fs(old_fs);
-	if (!ret) {
-		ret = put_user(RESOURCE32(r.rlim_cur), &rlim->rlim_cur);
-		ret |= put_user(RESOURCE32(r.rlim_max), &rlim->rlim_max);
-	}
-	return ret;
-}
-
-asmlinkage long
-sys32_getrlimit (unsigned int resource, struct rlimit32 *rlim)
-{
-	mm_segment_t old_fs = get_fs();
-	struct rlimit r;
-	int ret;
-
-	set_fs(KERNEL_DS);
-	ret = sys_getrlimit(resource, &r);
-	set_fs(old_fs);
-	if (!ret) {
-		if (r.rlim_cur >= 0xffffffff)
-			r.rlim_cur = 0xffffffff;
-		if (r.rlim_max >= 0xffffffff)
-			r.rlim_max = 0xffffffff;
-		ret = put_user(r.rlim_cur, &rlim->rlim_cur);
-		ret |= put_user(r.rlim_max, &rlim->rlim_max);
-	}
-	return ret;
-}
-
-extern asmlinkage long sys_setrlimit (unsigned int resource, struct rlimit *rlim);
-
-asmlinkage long
-sys32_setrlimit (unsigned int resource, struct rlimit32 *rlim)
-{
-	struct rlimit r;
-	int ret;
-	mm_segment_t old_fs = get_fs();
-
-	if (resource >= RLIM_NLIMITS)
-		return -EINVAL;
-	if (get_user(r.rlim_cur, &rlim->rlim_cur) || get_user(r.rlim_max, &rlim->rlim_max))
-		return -EFAULT;
-	if (r.rlim_cur == RLIM_INFINITY32)
-		r.rlim_cur = RLIM_INFINITY;
-	if (r.rlim_max == RLIM_INFINITY32)
-		r.rlim_max = RLIM_INFINITY;
-	set_fs(KERNEL_DS);
-	ret = sys_setrlimit(resource, &r);
-	set_fs(old_fs);
-	return ret;
-}
-
 /*
  * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit emulation..
  *
@@ -1648,19 +1575,35 @@ shmctl32 (int first, int second, void *uptr)
 	return err;
 }
 
+extern int sem_ctls[];
+#define sc_semopm	(sem_ctls[2])
+
 static long
-semtimedop32(int semid, struct sembuf *tsems, int nsems,
-	     const struct compat_timespec *timeout32)
+semtimedop32(int semid, struct sembuf *tsops, int nsops,
+	     struct compat_timespec *timeout32)
 {
 	struct timespec t;
-	if (get_user (t.tv_sec, &timeout32->tv_sec) ||
-	    get_user (t.tv_nsec, &timeout32->tv_nsec))
+	mm_segment_t oldfs;
+	long ret;
+
+	/* parameter checking precedence should mirror sys_semtimedop() */
+	if (nsops < 1 || semid < 0)
+		return -EINVAL;
+	if (nsops > sc_semopm)
+		return -E2BIG;
+	if (!access_ok(VERIFY_READ, tsops, nsops * sizeof(struct sembuf)) ||
+	    get_compat_timespec(&t, timeout32))
 		return -EFAULT;
-	return sys_semtimedop(semid, tsems, nsems, &t);
+
+	oldfs = get_fs();
+	set_fs(KERNEL_DS);
+	ret = sys_semtimedop(semid, tsops, nsops, &t);
+	set_fs(oldfs);
+	return ret;
 }
 
 asmlinkage long
-sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
+sys32_ipc(u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 {
 	int version;
 
@@ -1668,12 +1611,15 @@ sys32_ipc (u32 call, int first, int second, int third, u32 ptr, u32 fifth)
 	call &= 0xffff;
 
 	switch (call) {
+	      case SEMTIMEDOP:
+		if (fifth)
+			return semtimedop32(first, (struct sembuf *)AA(ptr),
+				second, (struct compat_timespec *)AA(fifth));
+		/* else fall through for normal semop() */
 	      case SEMOP:
 		/* struct sembuf is the same on 32 and 64bit :)) */
-		return sys_semtimedop(first, (struct sembuf *)AA(ptr), second, NULL);
-	      case SEMTIMEDOP:
-		return semtimedop32(first, (struct sembuf *)AA(ptr), second,
-				    (const struct compat_timespec *)AA(fifth));
+		return sys_semtimedop(first, (struct sembuf *)AA(ptr), second,
+				      NULL);
 	      case SEMGET:
 		return sys_semget(first, second, third);
 	      case SEMCTL:
@@ -1724,98 +1670,10 @@ sys32_time (int *tloc)
 	return i;
 }
 
-struct rusage32 {
-	struct compat_timeval ru_utime;
-	struct compat_timeval ru_stime;
-	int    ru_maxrss;
-	int    ru_ixrss;
-	int    ru_idrss;
-	int    ru_isrss;
-	int    ru_minflt;
-	int    ru_majflt;
-	int    ru_nswap;
-	int    ru_inblock;
-	int    ru_oublock;
-	int    ru_msgsnd;
-	int    ru_msgrcv;
-	int    ru_nsignals;
-	int    ru_nvcsw;
-	int    ru_nivcsw;
-};
-
-static int
-put_rusage (struct rusage32 *ru, struct rusage *r)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, ru, sizeof(*ru)))
-		return -EFAULT;
-
-	err = __put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec);
-	err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec);
-	err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec);
-	err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec);
-	err |= __put_user (r->ru_maxrss, &ru->ru_maxrss);
-	err |= __put_user (r->ru_ixrss, &ru->ru_ixrss);
-	err |= __put_user (r->ru_idrss, &ru->ru_idrss);
-	err |= __put_user (r->ru_isrss, &ru->ru_isrss);
-	err |= __put_user (r->ru_minflt, &ru->ru_minflt);
-	err |= __put_user (r->ru_majflt, &ru->ru_majflt);
-	err |= __put_user (r->ru_nswap, &ru->ru_nswap);
-	err |= __put_user (r->ru_inblock, &ru->ru_inblock);
-	err |= __put_user (r->ru_oublock, &ru->ru_oublock);
-	err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd);
-	err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv);
-	err |= __put_user (r->ru_nsignals, &ru->ru_nsignals);
-	err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw);
-	err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw);
-	return err;
-}
-
-asmlinkage long
-sys32_wait4 (int pid, unsigned int *stat_addr, int options, struct rusage32 *ru)
-{
-	if (!ru)
-		return sys_wait4(pid, stat_addr, options, NULL);
-	else {
-		struct rusage r;
-		int ret;
-		unsigned int status;
-		mm_segment_t old_fs = get_fs();
-
-		set_fs(KERNEL_DS);
-		ret = sys_wait4(pid, stat_addr ? &status : NULL, options, &r);
-		set_fs(old_fs);
-		if (put_rusage(ru, &r))
-			return -EFAULT;
-		if (stat_addr && put_user(status, stat_addr))
-			return -EFAULT;
-		return ret;
-	}
-}
-
 asmlinkage long
 sys32_waitpid (int pid, unsigned int *stat_addr, int options)
 {
-	return sys32_wait4(pid, stat_addr, options, NULL);
-}
-
-
-extern asmlinkage long sys_getrusage (int who, struct rusage *ru);
-
-asmlinkage long
-sys32_getrusage (int who, struct rusage32 *ru)
-{
-	struct rusage r;
-	int ret;
-	mm_segment_t old_fs = get_fs();
-
-	set_fs(KERNEL_DS);
-	ret = sys_getrusage(who, &r);
-	set_fs(old_fs);
-	if (put_rusage (ru, &r))
-		return -EFAULT;
-	return ret;
+	return compat_sys_wait4(pid, stat_addr, options, NULL);
 }
 
 static unsigned int
@@ -2211,7 +2069,7 @@ sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data,
 			ret = -EIO;
 			break;
 		}
-		for (i = 0; i < 17*sizeof(int); i += sizeof(int) ) {
+		for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) {
 			put_user(getreg(child, i), (unsigned int *) A(data));
 			data += sizeof(int);
 		}
@@ -2223,7 +2081,7 @@ sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data,
 			ret = -EIO;
 			break;
 		}
-		for (i = 0; i < 17*sizeof(int); i += sizeof(int) ) {
+		for (i = 0; i < (int) (17*sizeof(int)); i += sizeof(int) ) {
 			get_user(tmp, (unsigned int *) A(data));
 			putreg(child, i, tmp);
 			data += sizeof(int);
@@ -2299,7 +2157,7 @@ sys32_iopl (int level)
 		return(-EINVAL);
 	/* Trying to gain more privileges? */
 	asm volatile ("mov %0=ar.eflag ;;" : "=r"(old));
-	if (level > ((old >> 12) & 3)) {
+	if ((unsigned int) level > ((old >> 12) & 3)) {
 		if (!capable(CAP_SYS_RAWIO))
 			return -EPERM;
 	}

arch/ia64/kernel/Makefile

@@ -11,6 +11,8 @@ obj-y := acpi.o entry.o efi.o efi_stub.o gate.o ia64_ksyms.o irq.o irq_ia64.o ir
 obj-$(CONFIG_EFI_VARS)		+= efivars.o
 obj-$(CONFIG_FSYS)		+= fsys.o
 obj-$(CONFIG_IA64_BRL_EMU)	+= brl_emu.o
+obj-$(CONFIG_IA64_GENERIC)	+= acpi-ext.o
+obj-$(CONFIG_IA64_HP_ZX1)	+= acpi-ext.o
 obj-$(CONFIG_IA64_MCA)		+= mca.o mca_asm.o
 obj-$(CONFIG_IA64_PALINFO)	+= palinfo.o
 obj-$(CONFIG_IOSAPIC)		+= iosapic.o

arch/ia64/kernel/acpi-ext.c

@@ -3,69 +3,99 @@
  *
  * Copyright (C) 2003 Hewlett-Packard
  * Copyright (C) Alex Williamson
+ * Copyright (C) Bjorn Helgaas
  *
- * Vendor specific extensions to ACPI.  These are used by both
- * HP and NEC.
+ * Vendor specific extensions to ACPI.
  */
 
 #include <linux/config.h>
+#include <linux/module.h>
 #include <linux/types.h>
 #include <linux/acpi.h>
 #include <linux/efi.h>
 
 #include <asm/acpi-ext.h>
 
-/*
- * Note: Strictly speaking, this is only needed for HP and NEC machines.
- *	 However, NEC machines identify themselves as DIG-compliant, so there is
- *	 no easy way to #ifdef this out.
- */
+struct acpi_vendor_descriptor {
+	u8				guid_id;
+	efi_guid_t			guid;
+};
+
+struct acpi_vendor_info {
+	struct acpi_vendor_descriptor	*descriptor;
+	u8				*data;
+	u32				length;
+};
+
 acpi_status
-hp_acpi_csr_space (acpi_handle obj, u64 *csr_base, u64 *csr_length)
+acpi_vendor_resource_match(struct acpi_resource *resource, void *context)
 {
-	int i, offset = 0;
-	acpi_status status;
-	struct acpi_buffer buf;
-	struct acpi_resource_vendor *res;
-	struct acpi_hp_vendor_long *hp_res;
-	efi_guid_t vendor_guid;
-
-	*csr_base = 0;
-	*csr_length = 0;
-
-	status = acpi_get_crs(obj, &buf);
-	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR PREFIX "Unable to get _CRS data on object\n");
-		return status;
-	}
-
-	res = (struct acpi_resource_vendor *)acpi_get_crs_type(&buf, &offset, ACPI_RSTYPE_VENDOR);
-	if (!res) {
-		printk(KERN_ERR PREFIX "Failed to find config space for device\n");
-		acpi_dispose_crs(&buf);
+	struct acpi_vendor_info *info = (struct acpi_vendor_info *) context;
+	struct acpi_resource_vendor *vendor;
+	struct acpi_vendor_descriptor *descriptor;
+	u32 length;
+
+	if (resource->id != ACPI_RSTYPE_VENDOR)
+		return AE_OK;
+
+	vendor = (struct acpi_resource_vendor *) &resource->data;
+	descriptor = (struct acpi_vendor_descriptor *) vendor->reserved;
+	if (vendor->length <= sizeof(*info->descriptor) ||
+	    descriptor->guid_id != info->descriptor->guid_id ||
+	    efi_guidcmp(descriptor->guid, info->descriptor->guid))
+		return AE_OK;
+
+	length = vendor->length - sizeof(struct acpi_vendor_descriptor);
+	info->data = acpi_os_allocate(length);
+	if (!info->data)
+		return AE_NO_MEMORY;
+
+	memcpy(info->data, vendor->reserved + sizeof(struct acpi_vendor_descriptor), length);
+	info->length = length;
+	return AE_CTRL_TERMINATE;
+}
+
+acpi_status
+acpi_find_vendor_resource(acpi_handle obj, struct acpi_vendor_descriptor *id,
+		u8 **data, u32 *length)
+{
+	struct acpi_vendor_info info;
+
+	info.descriptor = id;
+	info.data = 0;
+
+	acpi_walk_resources(obj, METHOD_NAME__CRS, acpi_vendor_resource_match, &info);
+	if (!info.data)
 		return AE_NOT_FOUND;
-	}
 
-	hp_res = (struct acpi_hp_vendor_long *)(res->reserved);
+	*data = info.data;
+	*length = info.length;
+	return AE_OK;
+}
+
+struct acpi_vendor_descriptor hp_ccsr_descriptor = {
+	.guid_id = 2,
+	.guid    = EFI_GUID(0x69e9adf9, 0x924f, 0xab5f, 0xf6, 0x4a, 0x24, 0xd2, 0x01, 0x37, 0x0e, 0xad)
+};
 
-	if (res->length != HP_CCSR_LENGTH || hp_res->guid_id != HP_CCSR_TYPE) {
-		printk(KERN_ERR PREFIX "Unknown Vendor data\n");
-		acpi_dispose_crs(&buf);
-		return AE_TYPE; /* Revisit error? */
-	}
+acpi_status
+hp_acpi_csr_space(acpi_handle obj, u64 *csr_base, u64 *csr_length)
+{
+	acpi_status status;
+	u8 *data;
+	u32 length;
+	int i;
 
-	memcpy(&vendor_guid, hp_res->guid, sizeof(efi_guid_t));
-	if (efi_guidcmp(vendor_guid, HP_CCSR_GUID) != 0) {
-		printk(KERN_ERR PREFIX "Vendor GUID does not match\n");
-		acpi_dispose_crs(&buf);
-		return AE_TYPE; /* Revisit error? */
-	}
+	status = acpi_find_vendor_resource(obj, &hp_ccsr_descriptor, &data, &length);
 
-	for (i = 0 ; i < 8 ; i++) {
-		*csr_base |= ((u64)(hp_res->csr_base[i]) << (i * 8));
-		*csr_length |= ((u64)(hp_res->csr_length[i]) << (i * 8));
-	}
+	if (ACPI_FAILURE(status) || length != 16)
+		return AE_NOT_FOUND;
+
+	memcpy(csr_base, data, sizeof(*csr_base));
+	memcpy(csr_length, data + 8, sizeof(*csr_length));
+	acpi_os_free(data);
 
-	acpi_dispose_crs(&buf);
 	return AE_OK;
 }
+
+EXPORT_SYMBOL(hp_acpi_csr_space);

arch/ia64/kernel/acpi.c

@@ -115,134 +115,6 @@ acpi_get_sysname (void)
 #endif
 }
 
-#ifdef CONFIG_ACPI
-
-/**
- * acpi_get_crs - Return the current resource settings for a device
- * obj: A handle for this device
- * buf: A buffer to be populated by this call.
- *
- * Pass a valid handle, typically obtained by walking the namespace and a
- * pointer to an allocated buffer, and this function will fill in the buffer
- * with a list of acpi_resource structures.
- */
-acpi_status
-acpi_get_crs (acpi_handle obj, struct acpi_buffer *buf)
-{
-	acpi_status result;
-	buf->length = 0;
-	buf->pointer = NULL;
-
-	result = acpi_get_current_resources(obj, buf);
-	if (result != AE_BUFFER_OVERFLOW)
-		return result;
-	buf->pointer = kmalloc(buf->length, GFP_KERNEL);
-	if (!buf->pointer)
-		return -ENOMEM;
-
-	return acpi_get_current_resources(obj, buf);
-}
-
-struct acpi_resource *
-acpi_get_crs_next (struct acpi_buffer *buf, int *offset)
-{
-	struct acpi_resource *res;
-
-	if (*offset >= buf->length)
-		return NULL;
-
-	res = buf->pointer + *offset;
-	*offset += res->length;
-	return res;
-}
-
-union acpi_resource_data *
-acpi_get_crs_type (struct acpi_buffer *buf, int *offset, int type)
-{
-	for (;;) {
-		struct acpi_resource *res = acpi_get_crs_next(buf, offset);
-		if (!res)
-			return NULL;
-		if (res->id == type)
-			return &res->data;
-	}
-}
-
-void
-acpi_dispose_crs (struct acpi_buffer *buf)
-{
-	kfree(buf->pointer);
-}
-
-void
-acpi_get_crs_addr (struct acpi_buffer *buf, int type, u64 *base, u64 *size, u64 *tra)
-{
-	int offset = 0;
-	struct acpi_resource_address16 *addr16;
-	struct acpi_resource_address32 *addr32;
-	struct acpi_resource_address64 *addr64;
-
-	for (;;) {
-		struct acpi_resource *res = acpi_get_crs_next(buf, &offset);
-		if (!res)
-			return;
-		switch (res->id) {
-			case ACPI_RSTYPE_ADDRESS16:
-				addr16 = (struct acpi_resource_address16 *) &res->data;
-
-				if (type == addr16->resource_type) {
-					*base = addr16->min_address_range;
-					*size = addr16->address_length;
-					*tra = addr16->address_translation_offset;
-					return;
-				}
-				break;
-			case ACPI_RSTYPE_ADDRESS32:
-				addr32 = (struct acpi_resource_address32 *) &res->data;
-				if (type == addr32->resource_type) {
-					*base = addr32->min_address_range;
-					*size = addr32->address_length;
-					*tra = addr32->address_translation_offset;
-					return;
-				}
-				break;
-			case ACPI_RSTYPE_ADDRESS64:
-				addr64 = (struct acpi_resource_address64 *) &res->data;
-				if (type == addr64->resource_type) {
-					*base = addr64->min_address_range;
-					*size = addr64->address_length;
-					*tra = addr64->address_translation_offset;
-					return;
-				}
-				break;
-		}
-	}
-}
-
-int
-acpi_get_addr_space(void *obj, u8 type, u64 *base, u64 *length, u64 *tra)
-{
-	acpi_status status;
-	struct acpi_buffer buf;
-
-	*base = 0;
-	*length = 0;
-	*tra = 0;
-
-	status = acpi_get_crs((acpi_handle)obj, &buf);
-	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR PREFIX "Unable to get _CRS data on object\n");
-		return status;
-	}
-
-	acpi_get_crs_addr(&buf, type, base, length, tra);
-
-	acpi_dispose_crs(&buf);
-
-	return AE_OK;
-}
-#endif /* CONFIG_ACPI */
-
 #ifdef CONFIG_ACPI_BOOT
 
 #define ACPI_MAX_PLATFORM_INTERRUPTS	256
@@ -324,7 +196,8 @@ acpi_parse_lsapic (acpi_table_entry_header *header)
 		printk(" enabled");
 #ifdef CONFIG_SMP
 		smp_boot_data.cpu_phys_id[total_cpus] = (lsapic->id << 8) | lsapic->eid;
-		if (hard_smp_processor_id() == smp_boot_data.cpu_phys_id[total_cpus])
+		if (hard_smp_processor_id()
+		    == (unsigned int) smp_boot_data.cpu_phys_id[total_cpus])
 			printk(" (BSP)");
 #endif
 	}
@@ -918,8 +791,7 @@ acpi_register_irq (u32 gsi, u32 polarity, u32 trigger)
 		return 0;
 
 	/* Turn it on */
-	vector = iosapic_register_intr (gsi, polarity ? IOSAPIC_POL_HIGH : IOSAPIC_POL_LOW,
-			trigger ? IOSAPIC_EDGE : IOSAPIC_LEVEL);
+	vector = iosapic_register_intr (gsi, polarity, trigger);
 	return vector;
 }
 

arch/ia64/kernel/brl_emu.c

@@ -59,7 +59,7 @@ ia64_emulate_brl (struct pt_regs *regs, unsigned long ar_ec)
 	unsigned long next_ip;
 	struct siginfo siginfo;
 	struct illegal_op_return rv;
-	int tmp_taken, unimplemented_address;
+	long tmp_taken, unimplemented_address;
 
 	rv.fkt = (unsigned long) -1;
 

arch/ia64/kernel/efi.c

@@ -203,16 +203,16 @@ STUB_GET_NEXT_HIGH_MONO_COUNT(virt, )
 STUB_RESET_SYSTEM(virt, )
 
 void
-efi_gettimeofday (struct timeval *tv)
+efi_gettimeofday (struct timespec *ts)
 {
 	efi_time_t tm;
 
-	memset(tv, 0, sizeof(tv));
+	memset(ts, 0, sizeof(ts));
 	if ((*efi.get_time)(&tm, 0) != EFI_SUCCESS)
 		return;
 
-	tv->tv_sec = mktime(tm.year, tm.month, tm.day, tm.hour, tm.minute, tm.second);
-	tv->tv_usec = tm.nanosecond / 1000;
+	ts->tv_sec = mktime(tm.year, tm.month, tm.day, tm.hour, tm.minute, tm.second);
+	ts->tv_nsec = tm.nanosecond;
 }
 
 static int
@@ -512,7 +512,7 @@ efi_init (void)
 	/* Show what we know for posterity */
 	c16 = __va(efi.systab->fw_vendor);
 	if (c16) {
-		for (i = 0;i < sizeof(vendor) && *c16; ++i)
+		for (i = 0;i < (int) sizeof(vendor) && *c16; ++i)
 			vendor[i] = *c16++;
 		vendor[i] = '\0';
 	}
@@ -520,7 +520,7 @@ efi_init (void)
 	printk(KERN_INFO "EFI v%u.%.02u by %s:",
 	       efi.systab->hdr.revision >> 16, efi.systab->hdr.revision & 0xffff, vendor);
 
-	for (i = 0; i < efi.systab->nr_tables; i++) {
+	for (i = 0; i < (int) efi.systab->nr_tables; i++) {
 		if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
 			efi.mps = __va(config_tables[i].table);
 			printk(" MPS=0x%lx", config_tables[i].table);

arch/ia64/kernel/efivars.c

@@ -138,8 +138,7 @@ utf8_strlen(efi_char16_t *data, unsigned long maxlength)
 static inline unsigned long
 utf8_strsize(efi_char16_t *data, unsigned long maxlength)
 {
-	return utf8_strlen(data, maxlength/sizeof(efi_char16_t)) *
-		sizeof(efi_char16_t);
+	return utf8_strlen(data, maxlength/sizeof(efi_char16_t)) * sizeof(efi_char16_t);
 }
 
 
@@ -170,8 +169,7 @@ efivar_create_proc_entry(unsigned long variable_name_size,
 			 efi_guid_t *vendor_guid)
 {
 
-	int i, short_name_size = variable_name_size /
-		sizeof(efi_char16_t) + 38;
+	int i, short_name_size = variable_name_size / sizeof(efi_char16_t) + 38;
 	char *short_name;
 	efivar_entry_t *new_efivar;
 
@@ -192,7 +190,7 @@ efivar_create_proc_entry(unsigned long variable_name_size,
 
 	/* Convert Unicode to normal chars (assume top bits are 0),
 	   ala UTF-8 */
-	for (i=0; i<variable_name_size / sizeof(efi_char16_t); i++) {
+	for (i=0; i< (int) (variable_name_size / sizeof(efi_char16_t)); i++) {
 		short_name[i] = variable_name[i] & 0xFF;
 	}
 

arch/ia64/kernel/fw-emu.c

@@ -37,7 +37,7 @@ static char fw_mem[(  sizeof(struct ia64_boot_param)
 		    + NUM_MEM_DESCS*(sizeof(efi_memory_desc_t))
 		    + 1024)] __attribute__ ((aligned (8)));
 
-#ifdef CONFIG_IA64_HP_SIM
+#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC)
 
 /* Simulator system calls: */
 
@@ -233,7 +233,7 @@ asm (
 static efi_status_t
 efi_get_time (efi_time_t *tm, efi_time_cap_t *tc)
 {
-#ifdef CONFIG_IA64_HP_SIM
+#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC)
 	struct {
 		int tv_sec;	/* must be 32bits to work */
 		int tv_usec;
@@ -255,7 +255,7 @@ efi_get_time (efi_time_t *tm, efi_time_cap_t *tc)
 static void
 efi_reset_system (int reset_type, efi_status_t status, unsigned long data_size, efi_char16_t *data)
 {
-#ifdef CONFIG_IA64_HP_SIM
+#if defined(CONFIG_IA64_HP_SIM) || defined(CONFIG_IA64_GENERIC)
 	ssc(status, 0, 0, 0, SSC_EXIT);
 #else
 #	error Not implemented yet...

arch/ia64/kernel/head.S

@@ -733,3 +733,82 @@ SET_REG(b4);
 SET_REG(b5);
 
 #endif /* CONFIG_IA64_BRL_EMU */
+
+#ifdef CONFIG_SMP
+	/*
+	 * This routine handles spinlock contention.  It uses a non-standard calling
+	 * convention to avoid converting leaf routines into interior routines.  Because
+	 * of this special convention, there are several restrictions:
+	 *
+	 * - do not use gp relative variables, this code is called from the kernel
+	 *   and from modules, r1 is undefined.
+	 * - do not use stacked registers, the caller owns them.
+	 * - do not use the scratch stack space, the caller owns it.
+	 * - do not use any registers other than the ones listed below
+	 *
+	 * Inputs:
+	 *   ar.pfs - saved CFM of caller
+	 *   ar.ccv - 0 (and available for use)
+	 *   r28    - available for use.
+	 *   r29    - available for use.
+	 *   r30    - available for use.
+	 *   r31    - address of lock, available for use.
+	 *   b7     - return address
+	 *   p14    - available for use.
+	 *
+	 * If you patch this code to use more registers, do not forget to update
+	 * the clobber lists for spin_lock() in include/asm-ia64/spinlock.h.
+	 */
+
+#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
+
+GLOBAL_ENTRY(ia64_spinlock_contention_pre3_4)
+	.prologue
+	.save ar.pfs, r0	// this code effectively has a zero frame size
+	.save rp, r28
+	.body
+	nop 0
+	nop 0
+	.restore sp		// pop existing prologue after next insn
+	mov b6 = r28
+	.prologue
+	.save ar.pfs, r0
+	.altrp b6
+	.body
+.wait:
+	// exponential backoff, kdb, lockmeter etc. go in here
+	hint @pause
+	ld4.bias r30=[r31]
+	nop 0
+	;;
+	cmp4.eq p14,p0=r30,r0
+(p14)	br.cond.sptk.few b6	// lock is now free, try to acquire
+	br.cond.sptk.few .wait
+END(ia64_spinlock_contention_pre3_4)
+
+#else
+
+GLOBAL_ENTRY(ia64_spinlock_contention)
+	.prologue
+	.altrp b6
+	.body
+.wait:
+	// exponential backoff, kdb, lockmeter etc. go in here
+	hint @pause
+	ld4.bias r30=[r31]
+	;;
+	cmp4.ne p14,p0=r30,r0
+	mov r30 = 1
+(p14)	br.cond.sptk.few .wait
+	;;
+	cmpxchg4.acq r30=[r31], r30, ar.ccv
+	;;
+	cmp4.ne p14,p0=r0,r30
+(p14)	br.cond.sptk.few .wait
+
+	br.ret.sptk.many b6	// lock is now taken
+END(ia64_spinlock_contention)
+
+#endif
+
+#endif /* CONFIG_SMP */

arch/ia64/kernel/ia64_ksyms.c

@@ -46,6 +46,7 @@ EXPORT_SYMBOL(ip_fast_csum);
 EXPORT_SYMBOL(__ia64_memcpy_fromio);
 EXPORT_SYMBOL(__ia64_memcpy_toio);
 EXPORT_SYMBOL(__ia64_memset_c_io);
+EXPORT_SYMBOL(io_space);
 
 #include <asm/semaphore.h>
 EXPORT_SYMBOL_NOVERS(__down);
@@ -56,6 +57,12 @@ EXPORT_SYMBOL_NOVERS(__up);
 #include <asm/page.h>
 EXPORT_SYMBOL(clear_page);
 
+#ifdef CONFIG_VIRTUAL_MEM_MAP
+#include <asm/pgtable.h>
+EXPORT_SYMBOL(vmalloc_end);
+EXPORT_SYMBOL(ia64_pfn_valid);
+#endif
+
 #include <asm/processor.h>
 EXPORT_SYMBOL(cpu_info__per_cpu);
 EXPORT_SYMBOL(kernel_thread);
@@ -161,3 +168,11 @@ EXPORT_SYMBOL(unw_access_br);
 EXPORT_SYMBOL(unw_access_fr);
 EXPORT_SYMBOL(unw_access_ar);
 EXPORT_SYMBOL(unw_access_pr);
+
+#if __GNUC__ < 3 || (__GNUC__ == 3 && __GNUC_MINOR__ < 4)
+extern void ia64_spinlock_contention_pre3_4 (void);
+EXPORT_SYMBOL(ia64_spinlock_contention_pre3_4);
+#else
+extern void ia64_spinlock_contention (void);
+EXPORT_SYMBOL(ia64_spinlock_contention);
+#endif

arch/ia64/kernel/iosapic.c

@@ -581,9 +581,8 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
 	register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY, polarity, trigger);
 
 	DBG("ISA: IRQ %u -> GSI 0x%x (%s,%s) -> CPU 0x%04x vector %d\n",
-	    isa_irq, gsi,
-	    polarity == IOSAPIC_POL_HIGH ? "high" : "low", trigger == IOSAPIC_EDGE ? "edge" : "level",
-	    dest, vector);
+	    isa_irq, gsi, polarity == IOSAPIC_POL_HIGH ? "high" : "low",
+	    trigger == IOSAPIC_EDGE ? "edge" : "level", dest, vector);
 
 	/* program the IOSAPIC routing table */
 	set_rte(vector, dest);
@@ -635,7 +634,6 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
 	       (ver & 0xf0) >> 4, (ver & 0x0f), phys_addr, gsi_base, gsi_base + num_rte - 1);
 
 	if ((gsi_base == 0) && pcat_compat) {
-
 		/*
 		 * Map the legacy ISA devices into the IOSAPIC data.  Some of these may
 		 * get reprogrammed later on with data from the ACPI Interrupt Source
@@ -646,20 +644,11 @@ iosapic_init (unsigned long phys_addr, unsigned int gsi_base)
 	}
 }
 
-static void __init
-fixup_vector (int vector, unsigned int gsi, const char *pci_id)
+void
+iosapic_enable_intr (unsigned int vector)
 {
-	struct hw_interrupt_type *irq_type = &irq_type_iosapic_level;
-	irq_desc_t *idesc;
 	unsigned int dest;
 
-	idesc = irq_desc(vector);
-	if (idesc->handler != irq_type) {
-		if (idesc->handler != &no_irq_type)
-			printk(KERN_INFO "IOSAPIC: changing vector %d from %s to %s\n",
-			       vector, idesc->handler->typename, irq_type->typename);
-		idesc->handler = irq_type;
-	}
 #ifdef CONFIG_SMP
 	/*
 	 * For platforms that do not support interrupt redirect via the XTP interface, we
@@ -687,10 +676,12 @@ fixup_vector (int vector, unsigned int gsi, const char *pci_id)
 #endif
 	set_rte(vector, dest);
 
-	printk(KERN_INFO "IOSAPIC: %s -> GSI 0x%x -> CPU 0x%04x vector %d\n",
-	       pci_id, gsi, dest, vector);
+	printk(KERN_INFO "IOSAPIC: vector %d -> CPU 0x%04x, enabled\n",
+	       vector, dest);
 }
 
+#ifdef CONFIG_ACPI_PCI
+
 void __init
 iosapic_parse_prt (void)
 {
@@ -699,6 +690,8 @@ iosapic_parse_prt (void)
 	unsigned int gsi;
 	int vector;
 	char pci_id[16];
+	struct hw_interrupt_type *irq_type = &irq_type_iosapic_level;
+	irq_desc_t *idesc;
 
 	list_for_each(node, &acpi_prt.entries) {
 		entry = list_entry(node, struct acpi_prt_entry, node);
@@ -711,6 +704,9 @@ iosapic_parse_prt (void)
 
 		vector = gsi_to_vector(gsi);
 		if (vector < 0) {
+			if (find_iosapic(gsi) < 0)
+				continue;
+
 			/* allocate a vector for this interrupt line */
 			if (pcat_compat && (gsi < 16))
 				vector = isa_irq_to_vector(gsi);
@@ -718,11 +714,22 @@ iosapic_parse_prt (void)
 				/* new GSI; allocate a vector for it */
 				vector = ia64_alloc_vector();
 
-			register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY, IOSAPIC_POL_LOW, IOSAPIC_LEVEL);
+			register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY, IOSAPIC_POL_LOW,
+				      IOSAPIC_LEVEL);
 		}
 		snprintf(pci_id, sizeof(pci_id), "%02x:%02x:%02x[%c]",
 			 entry->id.segment, entry->id.bus, entry->id.device, 'A' + entry->pin);
 
-		fixup_vector(vector, gsi, pci_id);
+		/*
+		 * If vector was previously initialized to a different
+		 * handler, re-initialize.
+		 */
+		idesc = irq_desc(vector);
+		if (idesc->handler != irq_type)
+			register_intr(gsi, vector, IOSAPIC_LOWEST_PRIORITY, IOSAPIC_POL_LOW,
+				      IOSAPIC_LEVEL);
+
 	}
 }
+
+#endif /* CONFIG_ACPI */

arch/ia64/kernel/irq.c

@@ -18,7 +18,6 @@
  */
 
 #include <linux/config.h>
-#include <linux/ptrace.h>
 #include <linux/errno.h>
 #include <linux/signal.h>
 #include <linux/sched.h>
@@ -33,6 +32,7 @@
 #include <linux/irq.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/kallsyms.h>
 
 #include <asm/atomic.h>
 #include <asm/io.h>
@@ -50,7 +50,7 @@
  * Linux has a controller-independent x86 interrupt architecture.
  * every controller has a 'controller-template', that is used
  * by the main code to do the right thing. Each driver-visible
- * interrupt source is transparently wired to the apropriate
+ * interrupt source is transparently wired to the appropriate
  * controller. Thus drivers need not be aware of the
  * interrupt-controller.
  *
@@ -91,7 +91,8 @@ static void register_irq_proc (unsigned int irq);
  * Special irq handlers.
  */
 
-void no_action(int cpl, void *dev_id, struct pt_regs *regs) { }
+irqreturn_t no_action(int cpl, void *dev_id, struct pt_regs *regs)
+{ return IRQ_NONE; }
 
 /*
  * Generic no controller code
@@ -141,9 +142,11 @@ struct hw_interrupt_type no_irq_type = {
 };
 
 atomic_t irq_err_count;
-#if defined(CONFIG_X86) && defined(CONFIG_X86_IO_APIC) && defined(APIC_MISMATCH_DEBUG)
+#ifdef CONFIG_X86_IO_APIC
+#ifdef APIC_MISMATCH_DEBUG
 atomic_t irq_mis_count;
 #endif
+#endif
 
 /*
  * Generic, controller-independent functions:
@@ -178,9 +181,10 @@ int show_interrupts(struct seq_file *p, void *v)
 #endif
 		seq_printf(p, " %14s", idesc->handler->typename);
 		seq_printf(p, "  %s", action->name);
+
 		for (action=action->next; action; action = action->next)
 			seq_printf(p, ", %s", action->name);
-		
+
 		seq_putc(p, '\n');
 skip:
 		spin_unlock_irqrestore(&idesc->lock, flags);
@@ -190,16 +194,18 @@ int show_interrupts(struct seq_file *p, void *v)
 		if (cpu_online(j))
 			seq_printf(p, "%10u ", nmi_count(j));
 	seq_putc(p, '\n');
-#if defined(CONFIG_SMP) && defined(CONFIG_X86)
+#if CONFIG_X86_LOCAL_APIC
 	seq_puts(p, "LOC: ");
 	for (j = 0; j < NR_CPUS; j++)
 		if (cpu_online(j))
-			seq_printf(p, "%10u ", apic_timer_irqs[j]);
+			seq_printf(p, "%10u ", irq_stat[j].apic_timer_irqs);
 	seq_putc(p, '\n');
 #endif
 	seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
-#if defined(CONFIG_X86) && defined(CONFIG_X86_IO_APIC) && defined(APIC_MISMATCH_DEBUG)
+#ifdef CONFIG_X86_IO_APIC
+#ifdef APIC_MISMATCH_DEBUG
 	seq_printf(p, "MIS: %10u\n", atomic_read(&irq_mis_count));
+#endif
 #endif
 	return 0;
 }
@@ -219,21 +225,46 @@ inline void synchronize_irq(unsigned int irq)
  * waste of time and is not what some drivers would
  * prefer.
  */
-int handle_IRQ_event(unsigned int irq, struct pt_regs * regs, struct irqaction * action)
+int handle_IRQ_event(unsigned int irq,
+		struct pt_regs *regs, struct irqaction *action)
 {
 	int status = 1;	/* Force the "do bottom halves" bit */
+	int retval = 0;
+	struct irqaction *first_action = action;
 
 	if (!(action->flags & SA_INTERRUPT))
 		local_irq_enable();
 
 	do {
 		status |= action->flags;
-		action->handler(irq, action->dev_id, regs);
+		retval |= action->handler(irq, action->dev_id, regs);
 		action = action->next;
 	} while (action);
 	if (status & SA_SAMPLE_RANDOM)
 		add_interrupt_randomness(irq);
 	local_irq_disable();
+	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);
+			}
+			dump_stack();
+			printk("handlers:\n");
+			action = first_action;
+			do {
+				printk("[<%p>]", action->handler);
+				print_symbol(" (%s)",
+					(unsigned long)action->handler);
+				printk("\n");
+				action = action->next;
+			} while (action);
+		}
+	}
 
 	return status;
 }
@@ -455,7 +486,7 @@ unsigned int do_IRQ(unsigned long irq, struct pt_regs *regs)
  */
 
 int request_irq(unsigned int irq,
-		void (*handler)(int, void *, struct pt_regs *),
+		irqreturn_t (*handler)(int, void *, struct pt_regs *),
 		unsigned long irqflags,
 		const char * devname,
 		void *dev_id)
@@ -482,7 +513,7 @@ int request_irq(unsigned int irq,
 		return -EINVAL;
 
 	action = (struct irqaction *)
-			kmalloc(sizeof(struct irqaction), GFP_KERNEL);
+			kmalloc(sizeof(struct irqaction), GFP_ATOMIC);
 	if (!action)
 		return -ENOMEM;
 
@@ -511,10 +542,7 @@ int request_irq(unsigned int irq,
  *	does not return until any executing interrupts for this IRQ
  *	have completed.
  *
- *	This function may be called from interrupt context. 
- *
- *	Bugs: Attempting to free an irq in a handler for the same irq hangs
- *	      the machine.
+ *	This function must not be called from interrupt context.
  */
 
 void free_irq(unsigned int irq, void *dev_id)
@@ -545,11 +573,8 @@ void free_irq(unsigned int irq, void *dev_id)
 			}
 			spin_unlock_irqrestore(&desc->lock,flags);
 
-#ifdef CONFIG_SMP
 			/* Wait to make sure it's not being used on another CPU */
-			while (desc->status & IRQ_INPROGRESS)
-				synchronize_irq(irq);
-#endif
+			synchronize_irq(irq);
 			kfree(action);
 			return;
 		}
@@ -664,7 +689,6 @@ unsigned long probe_irq_on(void)
  *	only return ISA irq numbers - just so that we reset them
  *	all to a known state.
  */
-
 unsigned int probe_irq_mask(unsigned long val)
 {
 	int i;
@@ -705,7 +729,7 @@ unsigned int probe_irq_mask(unsigned long val)
  *	The interrupt probe logic state is returned to its previous
  *	value.
  *
- *	BUGS: When used in a module (which arguably shouldnt happen)
+ *	BUGS: When used in a module (which arguably shouldn't happen)
  *	nothing prevents two IRQ probe callers from overlapping. The
  *	results of this are non-optimal.
  */
@@ -748,6 +772,8 @@ int setup_irq(unsigned int irq, struct irqaction * new)
 	struct irqaction *old, **p;
 	irq_desc_t *desc = irq_desc(irq);
 
+	if (desc->handler == &no_irq_type)
+		return -ENOSYS;
 	/*
 	 * Some drivers like serial.c use request_irq() heavily,
 	 * so we have to be careful not to interfere with a
@@ -808,11 +834,11 @@ static struct proc_dir_entry * irq_dir [NR_IRQS];
 
 #define HEX_DIGITS 8
 
-static int parse_hex_value (const char *buffer, unsigned long count, unsigned long *ret)
+static unsigned int parse_hex_value (const char *buffer,
+		unsigned long count, unsigned long *ret)
 {
 	unsigned char hexnum [HEX_DIGITS];
-	unsigned long value;
-	int i;
+	unsigned long value, i;
 
 	if (!count)
 		return -EINVAL;
@@ -950,12 +976,13 @@ static void register_irq_proc (unsigned int irq)
 #if CONFIG_SMP
 	{
 		struct proc_dir_entry *entry;
+
 		/* create /proc/irq/1234/smp_affinity */
 		entry = create_proc_entry("smp_affinity", 0600, irq_dir[irq]);
 
 		if (entry) {
 			entry->nlink = 1;
-			entry->data = (void *)(unsigned long)irq;
+			entry->data = (void *)(long)irq;
 			entry->read_proc = irq_affinity_read_proc;
 			entry->write_proc = irq_affinity_write_proc;
 		}

arch/ia64/kernel/irq_ia64.c

@@ -145,7 +145,7 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
 }
 
 #ifdef CONFIG_SMP
-extern void handle_IPI (int irq, void *dev_id, struct pt_regs *regs);
+extern irqreturn_t handle_IPI (int irq, void *dev_id, struct pt_regs *regs);
 
 static struct irqaction ipi_irqaction = {
 	.handler =	handle_IPI,

arch/ia64/kernel/machvec.c

 #include <linux/config.h>
 
+#include <asm/system.h>
+
 #ifdef CONFIG_IA64_GENERIC
 
 #include <linux/kernel.h>
 #include <linux/string.h>
 
-#include <asm/page.h>
 #include <asm/machvec.h>
+#include <asm/page.h>
 
 struct ia64_machine_vector ia64_mv;
 
@@ -43,3 +45,9 @@ void
 machvec_noop (void)
 {
 }
+
+void
+machvec_memory_fence (void)
+{
+	mb();
+}

arch/ia64/kernel/mca_asm.S

@@ -766,8 +766,6 @@ GLOBAL_ENTRY(ia64_monarch_init_handler)
 	// stash the information the SAL passed to os
 	SAL_TO_OS_MCA_HANDOFF_STATE_SAVE(r2)
 	;;
-
-// now we want to save information so we can dump registers
 	SAVE_MIN_WITH_COVER
 	;;
 	mov r8=cr.ifa
@@ -798,10 +796,12 @@ IVirtual_Switch:
 	//
 	// Let's call the C handler to get the rest of the state info
 	//
-	alloc r14=ar.pfs,0,0,1,0		// now it's safe (must be first in insn group!)
-	;;					//
+	alloc r14=ar.pfs,0,0,2,0		// now it's safe (must be first in insn group!)
+	;;
 	adds out0=16,sp				// out0 = pointer to pt_regs
 	;;
+	DO_SAVE_SWITCH_STACK
+	adds out1=16,sp				// out0 = pointer to switch_stack
 
 	br.call.sptk.many rp=ia64_init_handler
 .ret1:

arch/ia64/kernel/perfmon_mckinley.h

@@ -25,8 +25,8 @@ static pfm_reg_desc_t pfm_mck_pmc_desc[PMU_MAX_PMCS]={
 /* pmc5  */ { PFM_REG_COUNTING, 6, 0x0UL, 0xfffff7fUL, NULL,  pfm_mck_reserved, {RDEP(5),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
 /* pmc6  */ { PFM_REG_COUNTING, 6, 0x0UL, 0xfffff7fUL, NULL,  pfm_mck_reserved, {RDEP(6),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
 /* pmc7  */ { PFM_REG_COUNTING, 6, 0x0UL, 0xfffff7fUL, NULL,  pfm_mck_reserved, {RDEP(7),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc8  */ { PFM_REG_CONFIG  , 0, 0xffffffff3fffffffUL, 0xffffffff9fffffffUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
-/* pmc9  */ { PFM_REG_CONFIG  , 0, 0xffffffff3ffffffcUL, 0xffffffff9fffffffUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc8  */ { PFM_REG_CONFIG  , 0, 0xffffffff3fffffffUL, 0xffffffff3fffffffUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
+/* pmc9  */ { PFM_REG_CONFIG  , 0, 0xffffffff3ffffffcUL, 0xffffffff3fffffffUL, NULL, pfm_mck_pmc_check, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
 /* pmc10 */ { PFM_REG_MONITOR , 4, 0x0UL, 0xffffUL, NULL, pfm_mck_reserved, {RDEP(0)|RDEP(1),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
 /* pmc11 */ { PFM_REG_MONITOR , 6, 0x0UL, 0x30f01cf, NULL,  pfm_mck_reserved, {RDEP(2)|RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
 /* pmc12 */ { PFM_REG_MONITOR , 6, 0x0UL, 0xffffUL, NULL,  pfm_mck_reserved, {RDEP(8)|RDEP(9)|RDEP(10)|RDEP(11)|RDEP(12)|RDEP(13)|RDEP(14)|RDEP(15)|RDEP(16),0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
@@ -143,11 +143,8 @@ pfm_mck_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *va
 		case  8: val8 = *val;
 			 val13 = th->pmc[13];
 			 val14 = th->pmc[14];
-			 *val |= 1UL << 2; /* bit 2 must always be 1 */
 			 check_case1 = 1;
 			 break;
-		case  9: *val |= 1UL << 2; /* bit 2 must always be 1 */
-			 break;
 		case 13: val8  = th->pmc[8];
 			 val13 = *val;
 			 val14 = th->pmc[14];

arch/ia64/kernel/process.c

@@ -43,8 +43,8 @@
 
 #include "sigframe.h"
 
-static void
-do_show_stack (struct unw_frame_info *info, void *arg)
+void
+ia64_do_show_stack (struct unw_frame_info *info, void *arg)
 {
 	unsigned long ip, sp, bsp;
 	char buf[80];			/* don't make it so big that it overflows the stack! */
@@ -57,7 +57,7 @@ do_show_stack (struct unw_frame_info *info, void *arg)
 
 		unw_get_sp(info, &sp);
 		unw_get_bsp(info, &bsp);
-		snprintf(buf, sizeof(buf), " [<%016lx>] %%s sp=0x%016lx bsp=0x%016lx\n",
+		snprintf(buf, sizeof(buf), " [<%016lx>] %%s\n\t\t\t\tsp=%016lx bsp=%016lx\n",
 			 ip, sp, bsp);
 		print_symbol(buf, ip);
 	} while (unw_unwind(info) >= 0);
@@ -73,12 +73,12 @@ void
 show_stack (struct task_struct *task)
 {
 	if (!task)
-		unw_init_running(do_show_stack, 0);
+		unw_init_running(ia64_do_show_stack, 0);
 	else {
 		struct unw_frame_info info;
 
 		unw_init_from_blocked_task(&info, task);
-		do_show_stack(&info, 0);
+		ia64_do_show_stack(&info, 0);
 	}
 }
 
@@ -123,8 +123,8 @@ show_regs (struct pt_regs *regs)
 
 	if (user_mode(regs)) {
 		/* print the stacked registers */
-		unsigned long val, sof, *bsp, ndirty;
-		int i, is_nat = 0;
+		unsigned long val, *bsp, ndirty;
+		int i, sof, is_nat = 0;
 
 		sof = regs->cr_ifs & 0x7f;	/* size of frame */
 		ndirty = (regs->loadrs >> 19);
@@ -135,7 +135,7 @@ show_regs (struct pt_regs *regs)
 			       ((i == sof - 1) || (i % 3) == 2) ? "\n" : " ");
 		}
 	} else
-		show_stack(0);
+		show_stack(NULL);
 }
 
 void
@@ -379,6 +379,7 @@ copy_thread (int nr, unsigned long clone_flags,
 #	define THREAD_FLAGS_TO_SET	0
 	p->thread.flags = ((current->thread.flags & ~THREAD_FLAGS_TO_CLEAR)
 			   | THREAD_FLAGS_TO_SET);
+	p->thread.last_fph_cpu = -1;
 #ifdef CONFIG_IA32_SUPPORT
 	/*
 	 * If we're cloning an IA32 task then save the IA32 extra

arch/ia64/kernel/ptrace.c

@@ -202,17 +202,16 @@ static unsigned long
 get_rnat (struct pt_regs *pt, struct switch_stack *sw,
 	  unsigned long *krbs, unsigned long *urnat_addr)
 {
-	unsigned long rnat0 = 0, rnat1 = 0, urnat = 0, *slot0_kaddr, kmask = ~0UL;
+	unsigned long rnat0 = 0, rnat1 = 0, urnat = 0, *slot0_kaddr, umask = 0UL;
 	unsigned long *kbsp, *ubspstore, *rnat0_kaddr, *rnat1_kaddr, shift;
 	long num_regs;
 
 	kbsp = (unsigned long *) sw->ar_bspstore;
 	ubspstore = (unsigned long *) pt->ar_bspstore;
 	/*
-	 * First, figure out which bit number slot 0 in user-land maps
-	 * to in the kernel rnat.  Do this by figuring out how many
-	 * register slots we're beyond the user's backingstore and
-	 * then computing the equivalent address in kernel space.
+	 * First, figure out which bit number slot 0 in user-land maps to in the kernel
+	 * rnat.  Do this by figuring out how many register slots we're beyond the user's
+	 * backingstore and then computing the equivalent address in kernel space.
 	 */
 	num_regs = ia64_rse_num_regs(ubspstore, urnat_addr + 1);
 	slot0_kaddr = ia64_rse_skip_regs(krbs, num_regs);
@@ -222,8 +221,8 @@ get_rnat (struct pt_regs *pt, struct switch_stack *sw,
 
 	if (ubspstore + 63 > urnat_addr) {
 		/* some bits need to be merged in from pt->ar_rnat */
-		kmask = ~((1UL << ia64_rse_slot_num(ubspstore)) - 1);
-		urnat = (pt->ar_rnat & ~kmask);
+		umask = ((1UL << ia64_rse_slot_num(ubspstore)) - 1);
+		urnat = (pt->ar_rnat & umask);
 	}
 	if (rnat0_kaddr >= kbsp) {
 		rnat0 = sw->ar_rnat;
@@ -235,7 +234,7 @@ get_rnat (struct pt_regs *pt, struct switch_stack *sw,
 	} else if (rnat1_kaddr > krbs) {
 		rnat1 = *rnat1_kaddr;
 	}
-	urnat |= ((rnat1 << (63 - shift)) | (rnat0 >> shift)) & kmask;
+	urnat |= ((rnat1 << (63 - shift)) | (rnat0 >> shift)) & ~umask;
 	return urnat;
 }
 
@@ -246,17 +245,19 @@ static void
 put_rnat (struct pt_regs *pt, struct switch_stack *sw,
 	  unsigned long *krbs, unsigned long *urnat_addr, unsigned long urnat)
 {
-	unsigned long rnat0 = 0, rnat1 = 0, rnat = 0, *slot0_kaddr, kmask = ~0UL, mask;
-	unsigned long *kbsp, *ubspstore, *rnat0_kaddr, *rnat1_kaddr, shift;
-	long num_regs;
+	unsigned long rnat0 = 0, rnat1 = 0, *slot0_kaddr, umask = 0, mask, m;
+	unsigned long *kbsp, *ubspstore, *rnat0_kaddr, *rnat1_kaddr, shift, slot, ndirty;
+	long num_regs, nbits;
+
+	ndirty = ia64_rse_num_regs(krbs, krbs + (pt->loadrs >> 19));
+	nbits = ndirty % 63;
 
 	kbsp = (unsigned long *) sw->ar_bspstore;
 	ubspstore = (unsigned long *) pt->ar_bspstore;
 	/*
-	 * First, figure out which bit number slot 0 in user-land maps
-	 * to in the kernel rnat.  Do this by figuring out how many
-	 * register slots we're beyond the user's backingstore and
-	 * then computing the equivalent address in kernel space.
+	 * First, figure out which bit number slot 0 in user-land maps to in the kernel
+	 * rnat.  Do this by figuring out how many register slots we're beyond the user's
+	 * backingstore and then computing the equivalent address in kernel space.
 	 */
 	num_regs = (long) ia64_rse_num_regs(ubspstore, urnat_addr + 1);
 	slot0_kaddr = ia64_rse_skip_regs(krbs, num_regs);
@@ -264,29 +265,37 @@ put_rnat (struct pt_regs *pt, struct switch_stack *sw,
 	rnat1_kaddr = ia64_rse_rnat_addr(slot0_kaddr);
 	rnat0_kaddr = rnat1_kaddr - 64;
 
+printk("%s: ubspstore=%p urnat_addr=%p\n", __FUNCTION__, ubspstore, urnat_addr);
 	if (ubspstore + 63 > urnat_addr) {
 		/* some bits need to be place in pt->ar_rnat: */
-		kmask = ~((1UL << ia64_rse_slot_num(ubspstore)) - 1);
-		pt->ar_rnat = (pt->ar_rnat & kmask) | (rnat & ~kmask);
+		slot = ia64_rse_slot_num(ubspstore);
+		umask = ((1UL << slot) - 1);
+		pt->ar_rnat = (pt->ar_rnat & ~umask) | (urnat & umask);
+		nbits -= slot;
+		if (nbits <= 0)
+			return;
 	}
+	mask = (1UL << nbits) - 1;
 	/*
 	 * Note: Section 11.1 of the EAS guarantees that bit 63 of an
 	 * rnat slot is ignored. so we don't have to clear it here.
 	 */
 	rnat0 = (urnat << shift);
-	mask = ~0UL << shift;
+	m = mask << shift;
+printk("%s: rnat0=%016lx, m=%016lx, rnat0_kaddr=%p kbsp=%p\n", __FUNCTION__, rnat0, m, rnat0_kaddr, kbsp);
 	if (rnat0_kaddr >= kbsp) {
-		sw->ar_rnat = (sw->ar_rnat & ~mask) | (rnat0 & mask);
+		sw->ar_rnat = (sw->ar_rnat & ~m) | (rnat0 & m);
 	} else if (rnat0_kaddr > krbs) {
-		*rnat0_kaddr = ((*rnat0_kaddr & ~mask) | (rnat0 & mask));
+		*rnat0_kaddr = ((*rnat0_kaddr & ~m) | (rnat0 & m));
 	}
 
 	rnat1 = (urnat >> (63 - shift));
-	mask = ~0UL >> (63 - shift);
+	m = mask >> (63 - shift);
+printk("%s: rnat1=%016lx, m=%016lx, rnat1_kaddr=%p kbsp=%p\n", __FUNCTION__, rnat1, m, rnat1_kaddr, kbsp);
 	if (rnat1_kaddr >= kbsp) {
-		sw->ar_rnat = (sw->ar_rnat & ~mask) | (rnat1 & mask);
+		sw->ar_rnat = (sw->ar_rnat & ~m) | (rnat1 & m);
 	} else if (rnat1_kaddr > krbs) {
-		*rnat1_kaddr = ((*rnat1_kaddr & ~mask) | (rnat1 & mask));
+		*rnat1_kaddr = ((*rnat1_kaddr & ~m) | (rnat1 & m));
 	}
 }
 
@@ -589,6 +598,7 @@ ia64_flush_fph (struct task_struct *task)
 		psr->mfh = 0;
 		ia64_save_fpu(&task->thread.fph[0]);
 		task->thread.flags |= IA64_THREAD_FPH_VALID;
+		task->thread.last_fph_cpu = smp_processor_id();
 	}
 }
 
@@ -608,12 +618,11 @@ ia64_sync_fph (struct task_struct *task)
 	ia64_flush_fph(task);
 	if (!(task->thread.flags & IA64_THREAD_FPH_VALID)) {
 		task->thread.flags |= IA64_THREAD_FPH_VALID;
+		task->thread.last_fph_cpu = -1;		/* force reload */
 		memset(&task->thread.fph, 0, sizeof(task->thread.fph));
 	}
-#ifndef CONFIG_SMP
 	if (ia64_get_fpu_owner() == task)
 		ia64_set_fpu_owner(0);
-#endif
 	psr->dfh = 1;
 }
 
@@ -702,7 +711,9 @@ access_uarea (struct task_struct *child, unsigned long addr, unsigned long *data
 		      case PT_R4: case PT_R5: case PT_R6: case PT_R7:
 			if (write_access) {
 				/* read NaT bit first: */
-				ret = unw_get_gr(&info, (addr - PT_R4)/8 + 4, data, &nat);
+				unsigned long dummy;
+
+				ret = unw_get_gr(&info, (addr - PT_R4)/8 + 4, &dummy, &nat);
 				if (ret < 0)
 					return ret;
 			}

arch/ia64/kernel/sal.c

@@ -116,7 +116,7 @@ ia64_sal_init (struct ia64_sal_systab *systab)
 	p = (char *) (systab + 1);
 	for (i = 0; i < systab->entry_count; i++) {
 		/*
-		 * The first byte of each entry type contains the type desciptor.
+		 * The first byte of each entry type contains the type descriptor.
 		 */
 		switch (*p) {
 		      case SAL_DESC_ENTRY_POINT:

arch/ia64/kernel/salinfo.c

@@ -38,7 +38,7 @@ static salinfo_entry_t salinfo_entries[]={
 	{ "itc_drift",		IA64_SAL_PLATFORM_FEATURE_ITC_DRIFT, },
 };
 
-#define NR_SALINFO_ENTRIES (sizeof(salinfo_entries)/sizeof(salinfo_entry_t))
+#define NR_SALINFO_ENTRIES ARRAY_SIZE(salinfo_entries)
 
 /*
  * One for each feature and one more for the directory entry...

arch/ia64/kernel/setup.c

@@ -59,7 +59,10 @@ unsigned long ia64_cycles_per_usec;
 struct ia64_boot_param *ia64_boot_param;
 struct screen_info screen_info;
 
+unsigned long ia64_max_cacheline_size;
 unsigned long ia64_iobase;	/* virtual address for I/O accesses */
+struct io_space io_space[MAX_IO_SPACES];
+unsigned int num_io_spaces;
 
 unsigned char aux_device_present = 0xaa;        /* XXX remove this when legacy I/O is gone */
 
@@ -412,6 +415,11 @@ setup_arch (char **cmdline_p)
 	}
 	ia64_iobase = (unsigned long) ioremap(phys_iobase, 0);
 
+	/* setup legacy IO port space */
+	io_space[0].mmio_base = ia64_iobase;
+	io_space[0].sparse = 1;
+	num_io_spaces = 1;
+
 #ifdef CONFIG_SMP
 	cpu_physical_id(0) = hard_smp_processor_id();
 #endif
@@ -421,7 +429,7 @@ setup_arch (char **cmdline_p)
 #ifdef CONFIG_ACPI_BOOT
 	acpi_boot_init();
 #endif
-#ifdef CONFIG_SERIAL_HCDP
+#ifdef CONFIG_SERIAL_8250_HCDP
 	if (efi.hcdp) {
 		void setup_serial_hcdp(void *);
 
@@ -494,7 +502,7 @@ show_cpuinfo (struct seq_file *m, void *v)
 	memcpy(features, " standard", 10);
 	cp = features;
 	sep = 0;
-	for (i = 0; i < sizeof(feature_bits)/sizeof(feature_bits[0]); ++i) {
+	for (i = 0; i < (int) ARRAY_SIZE(feature_bits); ++i) {
 		if (mask & feature_bits[i].mask) {
 			if (sep)
 				*cp++ = sep;
@@ -625,6 +633,39 @@ setup_per_cpu_areas (void)
 	/* start_kernel() requires this... */
 }
 
+static void
+get_max_cacheline_size (void)
+{
+	unsigned long line_size, max = 1;
+	u64 l, levels, unique_caches;
+        pal_cache_config_info_t cci;
+        s64 status;
+
+        status = ia64_pal_cache_summary(&levels, &unique_caches);
+        if (status != 0) {
+                printk(KERN_ERR "%s: ia64_pal_cache_summary() failed (status=%ld)\n",
+                       __FUNCTION__, status);
+                max = SMP_CACHE_BYTES;
+		goto out;
+        }
+
+	for (l = 0; l < levels; ++l) {
+		status = ia64_pal_cache_config_info(l, /* cache_type (data_or_unified)= */ 2,
+						    &cci);
+		if (status != 0) {
+			printk(KERN_ERR
+			       "%s: ia64_pal_cache_config_info(l=%lu) failed (status=%ld)\n",
+			       __FUNCTION__, l, status);
+			max = SMP_CACHE_BYTES;
+		}
+		line_size = 1 << cci.pcci_line_size;
+		if (line_size > max)
+			max = line_size;
+        }
+  out:
+	if (max > ia64_max_cacheline_size)
+		ia64_max_cacheline_size = max;
+}
 
 /*
  * cpu_init() initializes state that is per-CPU.  This function acts
@@ -668,6 +709,8 @@ cpu_init (void)
 	cpu_info->node_data = get_node_data_ptr();
 #endif
 
+	get_max_cacheline_size();
+
 	/*
 	 * We can't pass "local_cpu_data" to identify_cpu() because we haven't called
 	 * ia64_mmu_init() yet.  And we can't call ia64_mmu_init() first because it

arch/ia64/kernel/signal.c

@@ -142,8 +142,13 @@ restore_sigcontext (struct sigcontext *sc, struct sigscratch *scr)
 
 		__copy_from_user(current->thread.fph, &sc->sc_fr[32], 96*16);
 		psr->mfh = 0;	/* drop signal handler's fph contents... */
-		if (!psr->dfh)
+		if (psr->dfh)
+			current->thread.last_fph_cpu = -1;
+		else {
 			__ia64_load_fpu(current->thread.fph);
+			ia64_set_fpu_owner(current);
+			current->thread.last_fph_cpu = smp_processor_id();
+		}
 	}
 	return err;
 }
@@ -523,7 +528,7 @@ ia64_do_signal (sigset_t *oldset, struct sigscratch *scr, long in_syscall)
 			else
 				errno = -errno;
 		}
-	} else if (scr->pt.r10 != -1)
+	} else if ((long) scr->pt.r10 != -1)
 		/*
 		 * A system calls has to be restarted only if one of the error codes
 		 * ERESTARTNOHAND, ERESTARTSYS, or ERESTARTNOINTR is returned.  If r10