ia64: More 2.5.xx syncing.

arch/ia64/config.in

@@ -245,7 +245,14 @@ if [ "$CONFIG_DEBUG_KERNEL" != "n" ]; then
    bool '  Disable VHPT' CONFIG_DISABLE_VHPT
    bool '  Magic SysRq key' CONFIG_MAGIC_SYSRQ
 
-   bool '  Early printk support (requires VGA!)' CONFIG_IA64_EARLY_PRINTK
+   bool '  Early printk support' CONFIG_IA64_EARLY_PRINTK
+   if [ "$CONFIG_IA64_EARLY_PRINTK" != "n" ]; then
+      bool '    Early printk on MMIO serial port' CONFIG_IA64_EARLY_PRINTK_UART
+      if [ "$CONFIG_IA64_EARLY_PRINTK_UART" != "n" ]; then
+         hex '      UART MMIO base address' CONFIG_IA64_EARLY_PRINTK_UART_BASE ff5e0000
+      fi
+      bool '    Early printk on VGA' CONFIG_IA64_EARLY_PRINTK_VGA
+   fi
    bool '  Debug memory allocations' CONFIG_DEBUG_SLAB
    bool '  Spinlock debugging' CONFIG_DEBUG_SPINLOCK
    bool '  Turn on compare-and-exchange bug checking (slow!)' CONFIG_IA64_DEBUG_CMPXCHG

arch/ia64/hp/common/sba_iommu.c

@@ -450,7 +450,7 @@ sba_search_bitmap(struct ioc *ioc, unsigned long bits_wanted)
 		** We need the alignment to invalidate I/O TLB using
 		** SBA HW features in the unmap path.
 		*/
-		unsigned long o = 1 << get_order(bits_wanted << IOVP_SHIFT);
+		unsigned long o = 1UL << get_order(bits_wanted << IOVP_SHIFT);
 		uint bitshiftcnt = ROUNDUP(ioc->res_bitshift, o);
 		unsigned long mask;
 
@@ -1005,7 +1005,7 @@ sba_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg,
 		** Prepare for first/next DMA stream
 		*/
 		dma_len = sba_sg_len(startsg);
-		dma_offset = sba_sg_address(startsg);
+		dma_offset = (unsigned long) sba_sg_address(startsg);
 		startsg++;
 		nents--;
 
@@ -1016,7 +1016,7 @@ sba_coalesce_chunks(struct ioc *ioc, struct scatterlist *startsg,
 		** to take advantage of the block IO TLB flush.
 		*/
 		while (nents) {
-			unsigned int end_offset = dma_offset + dma_len;
+			unsigned long end_offset = dma_offset + dma_len;
 
 			/* prev entry must end on a page boundary */
 			if (end_offset & IOVP_MASK)
@@ -1114,8 +1114,8 @@ int sba_map_sg(struct pci_dev *dev, struct scatterlist *sglist, int nents,
 #endif
 	/* Fast path single entry scatterlists. */
 	if (nents == 1) {
-		sba_sg_iova(sglist) = (char *)sba_map_single(dev,
-						sba_sg_iova(sglist),
+		sba_sg_iova(sglist) = sba_map_single(dev,
+						     (void *) sba_sg_iova(sglist),
 						     sba_sg_len(sglist), direction);
 		sba_sg_iova_len(sglist) = sba_sg_len(sglist);
 #ifdef CONFIG_PROC_FS
@@ -1455,7 +1455,7 @@ sba_common_init(struct sba_device *sba_dev)
 			sba_dev->ioc[i].pdir_base[0] = 0x8000badbadc0ffeeULL;
 
 			for (reserved_iov = 0xA0000 ; reserved_iov < 0xC0000 ; reserved_iov += IOVP_SIZE) {
-				u64 *res_ptr = sba_dev->ioc[i].res_map;
+				u64 *res_ptr = (u64 *) sba_dev->ioc[i].res_map;
 				int index = PDIR_INDEX(reserved_iov);
 				int res_word;
 				u64 mask;
@@ -1586,7 +1586,7 @@ void __init sba_init(void)
 
 	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
 		if (pci_resource_flags(device, i) == IORESOURCE_MEM) {
-			hpa = ioremap(pci_resource_start(device, i),
+			hpa = (u64) ioremap(pci_resource_start(device, i),
 					    pci_resource_len(device, i));
 			break;
 		}
@@ -1595,7 +1595,7 @@ void __init sba_init(void)
 	func_id = READ_REG(hpa + SBA_FUNC_ID);
 
 	if (func_id == ZX1_FUNC_ID_VALUE) {
-		(void)strcpy(sba_rev, "zx1");
+		strcpy(sba_rev, "zx1");
 		func_offset = zx1_func_offsets;
 	} else {
 		return;

arch/ia64/hp/zx1/hpzx1_misc.c

@@ -12,80 +12,35 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/acpi.h>
-#include <asm/iosapic.h>
+
+#include <asm/dma.h>
 #include <asm/efi.h>
+#include <asm/iosapic.h>
 
-#include "../drivers/acpi/include/platform/acgcc.h"
-#include "../drivers/acpi/include/actypes.h"
-#include "../drivers/acpi/include/acexcep.h"
-#include "../drivers/acpi/include/acpixf.h"
-#include "../drivers/acpi/include/actbl.h"
-#include "../drivers/acpi/include/acconfig.h"
-#include "../drivers/acpi/include/acmacros.h"
-#include "../drivers/acpi/include/aclocal.h"
-#include "../drivers/acpi/include/acobject.h"
-#include "../drivers/acpi/include/acstruct.h"
-#include "../drivers/acpi/include/acnamesp.h"
-#include "../drivers/acpi/include/acutils.h"
-#include "../drivers/acpi/acpi_bus.h"
+extern acpi_status acpi_evaluate_integer (acpi_handle, acpi_string, acpi_object_list *,
+					  unsigned long *);
 
 #define PFX "hpzx1: "
 
+static int hpzx1_devices;
+
 struct fake_pci_dev {
-	struct fake_pci_dev *next;
-	unsigned char bus;
-	unsigned int devfn;
-	int sizing;		// in middle of BAR sizing operation?
 	unsigned long csr_base;
-	unsigned int csr_size;
+	unsigned long csr_size;
 	unsigned long mapped_csrs;	// ioremapped
+	int sizing;			// in middle of BAR sizing operation?
 };
 
-static struct fake_pci_dev *fake_pci_head, **fake_pci_tail = &fake_pci_head;
-
 static struct pci_ops *orig_pci_ops;
 
-static inline struct fake_pci_dev *
-fake_pci_find_slot(unsigned char bus, unsigned int devfn)
-{
-	struct fake_pci_dev *dev;
-
-	for (dev = fake_pci_head; dev; dev = dev->next)
-		if (dev->bus == bus && dev->devfn == devfn)
-			return dev;
-	return NULL;
-}
-
-static struct fake_pci_dev *
-alloc_fake_pci_dev(void)
-{
-        struct fake_pci_dev *dev;
-
-        dev = kmalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev)
-		return NULL;
-
-	memset(dev, 0, sizeof(*dev));
-
-        *fake_pci_tail = dev;
-        fake_pci_tail = &dev->next;
-
-        return dev;
-}
-
 #define HP_CFG_RD(sz, bits, name)						\
 static int hp_cfg_read##sz (struct pci_dev *dev, int where, u##bits *value)	\
 {										\
 	struct fake_pci_dev *fake_dev;						\
-	if (!(fake_dev = fake_pci_find_slot(dev->bus->number, dev->devfn))) \
+	if (!(fake_dev = (struct fake_pci_dev *) dev->sysdata))			\
 		return orig_pci_ops->name(dev, where, value);			\
 										\
-	switch (where) { \
-	case PCI_COMMAND: \
-		*value = read##sz(fake_dev->mapped_csrs + where); \
-		*value |= PCI_COMMAND_MEMORY; /* SBA omits this */ \
-		break; \
-	case PCI_BASE_ADDRESS_0: \
+	if (where == PCI_BASE_ADDRESS_0) {					\
 		if (fake_dev->sizing)						\
 			*value = ~(fake_dev->csr_size - 1);			\
 		else								\
@@ -93,11 +48,11 @@ static int hp_cfg_read##sz (struct pci_dev *dev, int where, u##bits *value) \
 				    PCI_BASE_ADDRESS_MEM_MASK) |		\
 				PCI_BASE_ADDRESS_SPACE_MEMORY;			\
 		fake_dev->sizing = 0;						\
-		break; \
-	default: \
-		*value = read##sz(fake_dev->mapped_csrs + where); \
-		break; \
+		return PCIBIOS_SUCCESSFUL;					\
 	}									\
+	*value = read##sz(fake_dev->mapped_csrs + where);			\
+	if (where == PCI_COMMAND)						\
+		*value |= PCI_COMMAND_MEMORY; /* SBA omits this */		\
 	return PCIBIOS_SUCCESSFUL;						\
 }
 
@@ -105,18 +60,16 @@ static int hp_cfg_read##sz (struct pci_dev *dev, int where, u##bits *value) \
 static int hp_cfg_write##sz (struct pci_dev *dev, int where, u##bits value)	\
 {										\
 	struct fake_pci_dev *fake_dev;						\
-	if (!(fake_dev = fake_pci_find_slot(dev->bus->number, dev->devfn))) \
+										\
+	if (!(fake_dev = (struct fake_pci_dev *) dev->sysdata))			\
 		return orig_pci_ops->name(dev, where, value);			\
 										\
-	switch (where) { \
-	case PCI_BASE_ADDRESS_0: \
+	if (where == PCI_BASE_ADDRESS_0) {					\
 		if (value == (u##bits) ~0)					\
 			fake_dev->sizing = 1;					\
-		break; \
-	default: \
+		return PCIBIOS_SUCCESSFUL;					\
+	} else									\
 		write##sz(value, fake_dev->mapped_csrs + where);		\
-		break; \
-	} \
 	return PCIBIOS_SUCCESSFUL;						\
 }
 
@@ -136,51 +89,86 @@ static struct pci_ops hp_pci_conf = {
 	hp_cfg_writel,
 };
 
-/*
- * Assume we'll never have a physical slot higher than 0x10, so we can
- * use slots above that for "fake" PCI devices to represent things
- * that only show up in the ACPI namespace.
- */
-#define HP_MAX_SLOT	0x10
-
-static struct fake_pci_dev *
-hpzx1_fake_pci_dev(unsigned long addr, unsigned int bus, unsigned int size)
+static void
+hpzx1_fake_pci_dev(char *name, unsigned int busnum, unsigned long addr, unsigned int size)
 {
-	struct fake_pci_dev *dev;
-	int slot;
+	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;
+	}
 
-	// Note: lspci thinks 0x1f is invalid
-	for (slot = 0x1e; slot > HP_MAX_SLOT; slot--) {
-		if (!fake_pci_find_slot(bus, PCI_DEVFN(slot, 0)))
+	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 (slot == HP_MAX_SLOT) {
-		printk(KERN_ERR PFX
-			"no slot space for device (0x%p) on bus 0x%02x\n",
-			(void *) addr, bus);
-		return NULL;
+
+	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 = alloc_fake_pci_dev();
+        dev = kmalloc(sizeof(*dev), GFP_KERNEL);
 	if (!dev) {
-		printk(KERN_ERR PFX
-			"no memory for device (0x%p) on bus 0x%02x\n",
-			(void *) addr, bus);
-		return NULL;
+		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
+
+	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);
-	dev->csr_base = addr;
-	dev->csr_size = size;
+	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;
 
-	/*
-	 * Drivers should ioremap what they need, but we have to do
-	 * it here, too, so PCI config accesses work.
-	 */
-	dev->mapped_csrs = (unsigned long) ioremap(dev->csr_base, dev->csr_size);
+	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.name, dev->name);
+	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);
 
-	return dev;
+	hpzx1_devices++;
 }
 
 typedef struct {
@@ -214,7 +202,7 @@ hp_csr_space(acpi_handle obj, u64 *csr_base, u64 *csr_length)
 	*csr_length = 0;
 
 	status = acpi_get_crs(obj, &buf);
-	if (status != AE_OK) {
+	if (ACPI_FAILURE(status)) {
 		printk(KERN_ERR PFX "Unable to get _CRS data on object\n");
 		return status;
 	}
@@ -255,13 +243,12 @@ static acpi_status
 hpzx1_sba_probe(acpi_handle obj, u32 depth, void *context, void **ret)
 {
 	u64 csr_base = 0, csr_length = 0;
-	char *name = context;
-	struct fake_pci_dev *dev;
 	acpi_status status;
+	char *name = context;
+	char fullname[16];
 
 	status = hp_csr_space(obj, &csr_base, &csr_length);
-
-	if (status != AE_OK)
+	if (ACPI_FAILURE(status))
 		return status;
 
 	/*
@@ -269,14 +256,10 @@ hpzx1_sba_probe(acpi_handle obj, u32 depth, void *context, void **ret)
 	 * includes both SBA and IOC.  Make SBA and IOC show up
 	 * separately in PCI space.
 	 */
-	if ((dev = hpzx1_fake_pci_dev(csr_base, 0, 0x1000)))
-		printk(KERN_INFO PFX "%s SBA at 0x%lx; pci dev %02x:%02x.%d\n",
-			name, csr_base, dev->bus,
-			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
-	if ((dev = hpzx1_fake_pci_dev(csr_base + 0x1000, 0, 0x1000)))
-		printk(KERN_INFO PFX "%s IOC at 0x%lx; pci dev %02x:%02x.%d\n",
-			name, csr_base + 0x1000, dev->bus,
-			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+	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;
 }
@@ -284,28 +267,24 @@ hpzx1_sba_probe(acpi_handle obj, u32 depth, void *context, void **ret)
 static acpi_status
 hpzx1_lba_probe(acpi_handle obj, u32 depth, void *context, void **ret)
 {
-	acpi_status status;
 	u64 csr_base = 0, csr_length = 0;
+	acpi_status status;
+	NATIVE_UINT busnum;
 	char *name = context;
-	NATIVE_UINT busnum = 0;
-	struct fake_pci_dev *dev;
+	char fullname[32];
 
 	status = hp_csr_space(obj, &csr_base, &csr_length);
-
-	if (status != AE_OK)
+	if (ACPI_FAILURE(status))
 		return status;
 
 	status = acpi_evaluate_integer(obj, METHOD_NAME__BBN, NULL, &busnum);
 	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR PFX "evaluate _BBN fail=0x%x\n", status);
+		printk(KERN_WARNING PFX "evaluate _BBN fail=0x%x\n", status);
 		busnum = 0;	// no _BBN; stick it on bus 0
 	}
 
-	if ((dev = hpzx1_fake_pci_dev(csr_base, busnum, csr_length)))
-		printk(KERN_INFO PFX "%s LBA at 0x%lx, _BBN 0x%02x; "
-			"pci dev %02x:%02x.%d\n",
-			name, csr_base, (unsigned int) busnum, dev->bus,
-			PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+	sprintf(fullname, "%s _BBN 0x%02x", name, (unsigned int) busnum);
+	hpzx1_fake_pci_dev(fullname, busnum, csr_base, csr_length);
 
 	return AE_OK;
 }
@@ -315,6 +294,8 @@ 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
@@ -329,10 +310,10 @@ hpzx1_acpi_dev_init(void)
 	 */
 	acpi_get_devices("HWP0001", hpzx1_sba_probe, "HWP0001", NULL);
 #ifdef CONFIG_IA64_HP_PROTO
-	if (fake_pci_tail != &fake_pci_head) {
+	if (hpzx1_devices) {
 #endif
-	acpi_get_devices("HWP0002", hpzx1_lba_probe, "HWP0002", NULL);
-	acpi_get_devices("HWP0003", hpzx1_lba_probe, "HWP0003", NULL);
+	acpi_get_devices("HWP0002", hpzx1_lba_probe, "HWP0002 PCI LBA", NULL);
+	acpi_get_devices("HWP0003", hpzx1_lba_probe, "HWP0003 AGP LBA", NULL);
 
 #ifdef CONFIG_IA64_HP_PROTO
 	}
@@ -343,48 +324,25 @@ hpzx1_acpi_dev_init(void)
 	 * if we didn't find anything, add the things we know are
 	 * there.
 	 */
-	if (fake_pci_tail == &fake_pci_head) {
+	if (hpzx1_devices == 0) {
 		u64 hpa, csr_base;
-		struct fake_pci_dev *dev;
 
 		csr_base = 0xfed00000UL;
-		hpa = (u64) ioremap(csr_base, 0x1000);
+		hpa = (u64) ioremap(csr_base, 0x2000);
 		if (__raw_readl(hpa) == ZX1_FUNC_ID_VALUE) {
-			if ((dev = hpzx1_fake_pci_dev(csr_base, 0, 0x1000)))
-				printk(KERN_INFO PFX "HWP0001 SBA at 0x%lx; "
-					"pci dev %02x:%02x.%d\n", csr_base,
-					dev->bus, PCI_SLOT(dev->devfn),
-					PCI_FUNC(dev->devfn));
-			if ((dev = hpzx1_fake_pci_dev(csr_base + 0x1000, 0,
-					0x1000)))
-				printk(KERN_INFO PFX "HWP0001 IOC at 0x%lx; "
-					"pci dev %02x:%02x.%d\n",
-					csr_base + 0x1000,
-					dev->bus, PCI_SLOT(dev->devfn),
-					PCI_FUNC(dev->devfn));
+			hpzx1_fake_pci_dev("HWP0001 SBA", 0, csr_base, 0x1000);
+			hpzx1_fake_pci_dev("HWP0001 IOC", 0, csr_base + 0x1000,
+					    0x1000);
 
 			csr_base = 0xfed24000UL;
 			iounmap(hpa);
 			hpa = (u64) ioremap(csr_base, 0x1000);
-			if ((dev = hpzx1_fake_pci_dev(csr_base, 0x40, 0x1000)))
-				printk(KERN_INFO PFX "HWP0003 AGP LBA at "
-					"0x%lx; pci dev %02x:%02x.%d\n",
-					csr_base,
-					dev->bus, PCI_SLOT(dev->devfn),
-					PCI_FUNC(dev->devfn));
+			hpzx1_fake_pci_dev("HWP0003 AGP LBA", 0x40, csr_base,
+					    0x1000);
 		}
 		iounmap(hpa);
 	}
 #endif
-
-	if (fake_pci_tail == &fake_pci_head)
-		return;
-
-	/*
-	 * Replace PCI ops, but only if we made fake devices.
-	 */
-	orig_pci_ops = pci_root_ops;
-	pci_root_ops = &hp_pci_conf;
 }
 
 extern void sba_init(void);
@@ -392,9 +350,16 @@ extern void sba_init(void);
 void
 hpzx1_pci_fixup (int phase)
 {
-	if (phase == 0)
-		hpzx1_acpi_dev_init();
 	iosapic_pci_fixup(phase);
-        if (phase == 1)
+	switch (phase) {
+	      case 0:
+		/* zx1 has a hardware I/O TLB which lets us DMA from any device to any address */
+		MAX_DMA_ADDRESS = ~0UL;
+		break;
+
+	      case 1:
+		hpzx1_acpi_dev_init();
 		sba_init();
+		break;
+	}
 }

arch/ia64/kernel/acpi.c

@@ -474,7 +474,7 @@ acpi_find_rsdp (void)
 }
 
 
-#ifdef CONFIG_SERIAL_ACPI
+#ifdef CONFIG_SERIAL_8250_ACPI
 
 #include <linux/acpi_serial.h>
 
@@ -529,7 +529,7 @@ acpi_parse_spcr (unsigned long phys_addr, unsigned long size)
 	return 0;
 }
 
-#endif /* CONFIG_SERIAL_ACPI */
+#endif /* CONFIG_SERIAL_8250_ACPI */
 
 
 int __init
@@ -587,7 +587,7 @@ acpi_boot_init (char *cmdline)
 	if (acpi_table_parse(ACPI_FACP, acpi_parse_fadt) < 1)
 		printk(KERN_ERR PREFIX "Can't find FADT\n");
 
-#ifdef CONFIG_SERIAL_ACPI
+#ifdef CONFIG_SERIAL_8250_ACPI
 	/*
 	 * TBD: Need phased approach to table parsing (only do those absolutely
 	 *      required during boot-up).  Recommend expanding concept of fix-

arch/ia64/kernel/efi.c

@@ -446,6 +446,9 @@ efi_init (void)
 		} else if (efi_guidcmp(config_tables[i].guid, SAL_SYSTEM_TABLE_GUID) == 0) {
 			efi.sal_systab = __va(config_tables[i].table);
 			printk(" SALsystab=0x%lx", config_tables[i].table);
+		} else if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID) == 0) {
+			efi.hcdp = __va(config_tables[i].table);
+			printk(" HCDP=0x%lx", config_tables[i].table);
 		}
 	}
 	printk("\n");

arch/ia64/kernel/iosapic.c

@@ -160,6 +160,10 @@ set_rte (unsigned int vector, unsigned long dest)
 	int pin;
 	char redir;
 
+#ifdef DEBUG_IRQ_ROUTING
+	printk(KERN_DEBUG "set_rte: routing vector 0x%02x to 0x%lx\n", vector, dest);
+#endif
+
 	pin = iosapic_irq[vector].pin;
 	if (pin < 0)
 		return;		/* not an IOSAPIC interrupt */
@@ -406,7 +410,7 @@ iosapic_reassign_vector (int vector)
 	    || iosapic_irq[vector].polarity || iosapic_irq[vector].trigger)
 	{
 		new_vector = ia64_alloc_irq();
-		printk("Reassigning Vector 0x%x to 0x%x\n", vector, new_vector);
+		printk("Reassigning vector 0x%x to 0x%x\n", vector, new_vector);
 		memcpy (&iosapic_irq[new_vector], &iosapic_irq[vector],
 			sizeof(struct iosapic_irq));
 		memset (&iosapic_irq[vector], 0, sizeof(struct iosapic_irq));
@@ -757,10 +761,11 @@ iosapic_pci_fixup (int phase)
 				if (!(smp_int_redirect & SMP_IRQ_REDIRECTION)) {
 					static int cpu_index = 0;
 
-					set_rte(vector, cpu_physical_id(cpu_index) & 0xffff);
+					while (!cpu_online(cpu_index))
+						if (++cpu_index >= NR_CPUS)
+							cpu_index = 0;
 
-					for (cpu_index++; !cpu_online(cpu_index % NR_CPUS); cpu_index++);
-                                        cpu_index %= NR_CPUS;
+					set_rte(vector, cpu_physical_id(cpu_index) & 0xffff);
 				} else {
 					/*
 					 * Direct the interrupt vector to the current cpu,

arch/ia64/kernel/irq.c

@@ -368,7 +368,7 @@ unsigned int do_IRQ(unsigned long irq, struct pt_regs *regs)
 		 * use the action we have.
 		 */
 		action = NULL;
-		if (!(status & (IRQ_DISABLED | IRQ_INPROGRESS))) {
+		if (likely(!(status & (IRQ_DISABLED | IRQ_INPROGRESS)))) {
 			action = desc->action;
 			status &= ~IRQ_PENDING; /* we commit to handling */
 			status |= IRQ_INPROGRESS; /* we are handling it */
@@ -381,7 +381,7 @@ unsigned int do_IRQ(unsigned long irq, struct pt_regs *regs)
 		 * a different instance of this same irq, the other processor
 		 * will take care of it.
 		 */
-		if (!action)
+		if (unlikely(!action))
 			goto out;
 
 		/*
@@ -403,8 +403,8 @@ unsigned int do_IRQ(unsigned long irq, struct pt_regs *regs)
 				break;
 			desc->status &= ~IRQ_PENDING;
 		}
-		desc->status &= ~IRQ_INPROGRESS;
 	  out:
+		desc->status &= ~IRQ_INPROGRESS;
 		/*
 		 * The ->end() handler has to deal with interrupts which got
 		 * disabled while the handler was running.

arch/ia64/kernel/setup.c

@@ -347,6 +347,14 @@ setup_arch (char **cmdline_p)
 #ifdef CONFIG_ACPI_BOOT
 	acpi_boot_init(*cmdline_p);
 #endif
+#ifdef CONFIG_SERIAL_HCDP
+	if (efi.hcdp) {
+		void setup_serial_hcdp(void *);
+
+		/* Setup the serial ports described by HCDP */
+		setup_serial_hcdp(efi.hcdp);
+	}
+#endif
 #ifdef CONFIG_VT
 # if defined(CONFIG_DUMMY_CONSOLE)
 	conswitchp = &dummy_con;

arch/ia64/kernel/traps.c

@@ -130,6 +130,8 @@ ia64_bad_break (unsigned long break_num, struct pt_regs *regs)
 	siginfo_t siginfo;
 	int sig, code;
 
+	die_if_kernel("bad break", regs, break_num);
+
 	/* SIGILL, SIGFPE, SIGSEGV, and SIGBUS want these field initialized: */
 	siginfo.si_addr = (void *) (regs->cr_iip + ia64_psr(regs)->ri);
 	siginfo.si_imm = break_num;

arch/ia64/mm/init.c

@@ -108,7 +108,7 @@ free_initmem (void)
 
 	addr = (unsigned long) &__init_begin;
 	for (; addr < (unsigned long) &__init_end; addr += PAGE_SIZE) {
-		clear_bit(PG_reserved, &virt_to_page(addr)->flags);
+		ClearPageReserved(virt_to_page(addr));
 		set_page_count(virt_to_page(addr), 1);
 		free_page(addr);
 		++totalram_pages;
@@ -162,9 +162,9 @@ free_initrd_mem (unsigned long start, unsigned long end)
 		if (!virt_addr_valid(start))
 			continue;
 		page = virt_to_page(start);
-		clear_bit(PG_reserved, &page->flags);
+		ClearPageReserved(page);
 		set_page_count(page, 1);
-		__free_page(page);
+		free_page(page);
 		++totalram_pages;
 	}
 }

include/asm-ia64/agp.h

-#ifndef AGP_H
-#define AGP_H 1
+#ifndef _ASM_IA64_AGP_H
+#define _ASM_IA64_AGP_H
 
-/* dummy for now */
+/*
+ * IA-64 specific AGP definitions.
+ *
+ * Copyright (C) 2002 Hewlett-Packard Co
+ *	David Mosberger-Tang <davidm@hpl.hp.com>
+ */
 
-#define map_page_into_agp(page) 
-#define unmap_page_from_agp(page) 
-#define flush_agp_mappings() 
+/*
+ * To avoid memory-attribute aliasing issues, we require that the AGPGART engine operate
+ * in coherent mode, which lets us map the AGP memory as normal (write-back) memory
+ * (unlike x86, where it gets mapped "write-coalescing").
+ */
+#define map_page_into_agp(page)		/* nothing */
+#define unmap_page_from_agp(page)	/* nothing */
+#define flush_agp_mappings()		/* nothing */
 #define flush_agp_cache()		mb()
 
-#endif
+#endif /* _ASM_IA64_AGP_H */

include/asm-ia64/efi.h

@@ -190,6 +190,9 @@ typedef void efi_reset_system_t (int reset_type, efi_status_t status,
 #define SAL_SYSTEM_TABLE_GUID    \
     EFI_GUID(  0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d )
 
+#define HCDP_TABLE_GUID	\
+    EFI_GUID(  0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98 )
+
 typedef struct {
 	efi_guid_t guid;
 	u64 table;
@@ -225,6 +228,7 @@ extern struct efi {
 	void *smbios;			/* SM BIOS table */
 	void *sal_systab;		/* SAL system table */
 	void *boot_info;		/* boot info table */
+	void *hcdp;			/* HCDP table */
 	efi_get_time_t *get_time;
 	efi_set_time_t *set_time;
 	efi_get_wakeup_time_t *get_wakeup_time;

include/asm-ia64/elf.h

@@ -2,7 +2,7 @@
 #define _ASM_IA64_ELF_H
 
 /*
- * ELF archtecture specific definitions.
+ * ELF-specific definitions.
  *
  * Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>

include/asm-ia64/page.h

@@ -87,7 +87,12 @@ typedef union ia64_va {
 #define REGION_SIZE		REGION_NUMBER(1)
 #define REGION_KERNEL		7
 
-#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); *(int *)0=0; } while (0)
+#if (__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1)
+# define ia64_abort()	__builtin_trap()
+#else
+# define ia64_abort()	(*(volatile int *) 0 = 0)
+#endif
+#define BUG() do { printk("kernel BUG at %s:%d!\n", __FILE__, __LINE__); ia64_abort(); } while (0)
 #define PAGE_BUG(page) do { BUG(); } while (0)
 
 static __inline__ int

include/asm-ia64/serial.h

@@ -115,21 +115,8 @@
 #define HUB6_SERIAL_PORT_DFNS
 #endif
 
-#ifdef CONFIG_MCA
-#define MCA_SERIAL_PORT_DFNS			\
-	{ 0, BASE_BAUD, 0x3220, 3, STD_COM_FLAGS },	\
-	{ 0, BASE_BAUD, 0x3228, 3, STD_COM_FLAGS },	\
-	{ 0, BASE_BAUD, 0x4220, 3, STD_COM_FLAGS },	\
-	{ 0, BASE_BAUD, 0x4228, 3, STD_COM_FLAGS },	\
-	{ 0, BASE_BAUD, 0x5220, 3, STD_COM_FLAGS },	\
-	{ 0, BASE_BAUD, 0x5228, 3, STD_COM_FLAGS },
-#else
-#define MCA_SERIAL_PORT_DFNS
-#endif
-
 #define SERIAL_PORT_DFNS		\
 	STD_SERIAL_PORT_DEFNS		\
 	EXTRA_SERIAL_PORT_DEFNS		\
-	HUB6_SERIAL_PORT_DFNS		\
-	MCA_SERIAL_PORT_DFNS
+	HUB6_SERIAL_PORT_DFNS
 

include/asm-ia64/tlb.h

@@ -123,13 +123,20 @@ tlb_gather_mmu (struct mm_struct *mm, unsigned int full_mm_flush)
 	mmu_gather_t *tlb = &mmu_gathers[smp_processor_id()];
 
 	tlb->mm = mm;
-	tlb->nr = 0;
-	if (full_mm_flush || num_online_cpus() == 1)
 	/*
-		 * Use fast mode if only 1 CPU is online or if we're tearing down the
-		 * entire address space.
+	 * Use fast mode if only 1 CPU is online.
+	 *
+	 * It would be tempting to turn on fast-mode for full_mm_flush as well.  But this
+	 * doesn't work because of speculative accesses and software prefetching: the page
+	 * table of "mm" may (and usually is) the currently active page table and even
+	 * though the kernel won't do any user-space accesses during the TLB shoot down, a
+	 * compiler might use speculation or lfetch.fault on what happens to be a valid
+	 * user-space address.  This in turn could trigger a TLB miss fault (or a VHPT
+	 * walk) and re-insert a TLB entry we just removed.  Slow mode avoids such
+	 * problems.  (We could make fast-mode work by switching the current task to a
+	 * different "mm" during the shootdown.) --davidm 08/02/2002
 	 */
-		tlb->nr =  ~0U;
+	tlb->nr = (num_online_cpus() == 1) ? ~0U : 0;
 	tlb->fullmm = full_mm_flush;
 	tlb->freed = 0;
 	tlb->start_addr = ~0UL;

include/asm-ia64/tlbflush.h

@@ -60,6 +60,8 @@ flush_tlb_page (struct vm_area_struct *vma, unsigned long addr)
 #else
 	if (vma->vm_mm == current->active_mm)
 		asm volatile ("ptc.l %0,%1" :: "r"(addr), "r"(PAGE_SHIFT << 2) : "memory");
+	else
+		vma->vm_mm->context = 0;
 #endif
 }