Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

91 files changed, 63799 insertions, 0 deletions

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
new file mode 100644
index 00000000000..7f31991772e
--- /dev/null
+++ b/drivers/pci/Kconfig
@@ -0,0 +1,59 @@
+#
+# PCI configuration
+#
+config PCI_MSI
+	bool "Message Signaled Interrupts (MSI and MSI-X)"
+	depends on PCI
+	depends on (X86_LOCAL_APIC && X86_IO_APIC) || IA64
+	help
+	   This allows device drivers to enable MSI (Message Signaled
+	   Interrupts).  Message Signaled Interrupts enable a device to
+	   generate an interrupt using an inbound Memory Write on its
+	   PCI bus instead of asserting a device IRQ pin.
+
+	   If you don't know what to do here, say N.
+
+config PCI_LEGACY_PROC
+	bool "Legacy /proc/pci interface"
+	depends on PCI
+	---help---
+	  This feature enables a procfs file -- /proc/pci -- that provides a 
+	  summary of PCI devices in the system. 
+
+	  This feature has been deprecated as of v2.5.53, in favor of using the 
+	  tool lspci(8). This feature may be removed at a future date. 
+
+	  lspci can provide the same data, as well as much more. lspci is a part of
+	  the pci-utils package, which should be installed by your distribution. 
+	  See <file:Documentation/Changes> for information on where to get the latest
+	  version. 
+
+	  When in doubt, say N.
+
+config PCI_NAMES
+	bool "PCI device name database"
+	depends on PCI
+	---help---
+	  By default, the kernel contains a database of all known PCI device
+	  names to make the information in /proc/pci, /proc/ioports and
+	  similar files comprehensible to the user. 
+
+	  This database increases size of the kernel image by about 80KB. This 
+	  memory is freed after the system boots up if CONFIG_HOTPLUG is not set.
+
+	  Anyway, if you are building an installation floppy or kernel for an 
+	  embedded system where kernel image size really matters, you can disable 
+	  this feature and you'll get device ID numbers instead of names.
+
+	  When in doubt, say Y.
+
+config PCI_DEBUG
+	bool "PCI Debugging"
+	depends on PCI && DEBUG_KERNEL
+	help
+	  Say Y here if you want the PCI core to produce a bunch of debug
+	  messages to the system log.  Select this if you are having a
+	  problem with PCI support and want to see more of what is going on.
+
+	  When in doubt, say N.
+
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
new file mode 100644
index 00000000000..7dea494c0d7
--- /dev/null
+++ b/drivers/pci/Makefile
@@ -0,0 +1,65 @@
+#
+# Makefile for the PCI bus specific drivers.
+#
+
+obj-y		+= access.o bus.o probe.o remove.o pci.o quirks.o \
+			names.o pci-driver.o search.o pci-sysfs.o \
+			rom.o
+obj-$(CONFIG_PROC_FS) += proc.o
+
+ifndef CONFIG_SPARC64
+obj-y += setup-res.o
+endif
+
+obj-$(CONFIG_HOTPLUG) += hotplug.o
+
+# Build the PCI Hotplug drivers if we were asked to
+obj-$(CONFIG_HOTPLUG_PCI) += hotplug/
+
+#
+# Some architectures use the generic PCI setup functions
+#
+obj-$(CONFIG_ALPHA) += setup-bus.o setup-irq.o
+obj-$(CONFIG_ARM) += setup-bus.o setup-irq.o
+obj-$(CONFIG_PARISC) += setup-bus.o
+obj-$(CONFIG_SUPERH) += setup-bus.o setup-irq.o
+obj-$(CONFIG_PPC32) += setup-irq.o
+obj-$(CONFIG_PPC64) += setup-bus.o
+obj-$(CONFIG_MIPS) += setup-bus.o setup-irq.o
+obj-$(CONFIG_X86_VISWS) += setup-irq.o
+obj-$(CONFIG_PCI_MSI) += msi.o
+
+#
+# ACPI Related PCI FW Functions
+#
+obj-$(CONFIG_ACPI)    += pci-acpi.o
+
+# Cardbus & CompactPCI use setup-bus
+obj-$(CONFIG_HOTPLUG) += setup-bus.o
+
+ifndef CONFIG_X86
+obj-y += syscall.o
+endif
+
+ifeq ($(CONFIG_PCI_DEBUG),y)
+EXTRA_CFLAGS += -DDEBUG
+endif
+
+hostprogs-y := gen-devlist
+
+# Dependencies on generated files need to be listed explicitly
+$(obj)/names.o: $(obj)/devlist.h $(obj)/classlist.h
+$(obj)/classlist.h: $(obj)/devlist.h
+
+# And that's how to generate them
+quiet_cmd_devlist = DEVLIST $@
+      cmd_devlist = ( cd $(obj); ./gen-devlist ) < $<
+$(obj)/devlist.h: $(src)/pci.ids $(obj)/gen-devlist
+	$(call cmd,devlist)
+
+# Files generated that shall be removed upon make clean
+clean-files := devlist.h classlist.h
+
+# Build PCI Express stuff if needed
+obj-$(CONFIG_PCIEPORTBUS) += pcie/
+
diff --git a/drivers/pci/access.c b/drivers/pci/access.c
new file mode 100644
index 00000000000..24a76de49f4
--- /dev/null
+++ b/drivers/pci/access.c
@@ -0,0 +1,62 @@
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+
+/*
+ * This interrupt-safe spinlock protects all accesses to PCI
+ * configuration space.
+ */
+
+static DEFINE_SPINLOCK(pci_lock);
+
+/*
+ *  Wrappers for all PCI configuration access functions.  They just check
+ *  alignment, do locking and call the low-level functions pointed to
+ *  by pci_dev->ops.
+ */
+
+#define PCI_byte_BAD 0
+#define PCI_word_BAD (pos & 1)
+#define PCI_dword_BAD (pos & 3)
+
+#define PCI_OP_READ(size,type,len) \
+int pci_bus_read_config_##size \
+	(struct pci_bus *bus, unsigned int devfn, int pos, type *value)	\
+{									\
+	int res;							\
+	unsigned long flags;						\
+	u32 data = 0;							\
+	if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER;	\
+	spin_lock_irqsave(&pci_lock, flags);				\
+	res = bus->ops->read(bus, devfn, pos, len, &data);		\
+	*value = (type)data;						\
+	spin_unlock_irqrestore(&pci_lock, flags);			\
+	return res;							\
+}
+
+#define PCI_OP_WRITE(size,type,len) \
+int pci_bus_write_config_##size \
+	(struct pci_bus *bus, unsigned int devfn, int pos, type value)	\
+{									\
+	int res;							\
+	unsigned long flags;						\
+	if (PCI_##size##_BAD) return PCIBIOS_BAD_REGISTER_NUMBER;	\
+	spin_lock_irqsave(&pci_lock, flags);				\
+	res = bus->ops->write(bus, devfn, pos, len, value);		\
+	spin_unlock_irqrestore(&pci_lock, flags);			\
+	return res;							\
+}
+
+PCI_OP_READ(byte, u8, 1)
+PCI_OP_READ(word, u16, 2)
+PCI_OP_READ(dword, u32, 4)
+PCI_OP_WRITE(byte, u8, 1)
+PCI_OP_WRITE(word, u16, 2)
+PCI_OP_WRITE(dword, u32, 4)
+
+EXPORT_SYMBOL(pci_bus_read_config_byte);
+EXPORT_SYMBOL(pci_bus_read_config_word);
+EXPORT_SYMBOL(pci_bus_read_config_dword);
+EXPORT_SYMBOL(pci_bus_write_config_byte);
+EXPORT_SYMBOL(pci_bus_write_config_word);
+EXPORT_SYMBOL(pci_bus_write_config_dword);
diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c
new file mode 100644
index 00000000000..dbd33605cc1
--- /dev/null
+++ b/drivers/pci/bus.c
@@ -0,0 +1,151 @@
+/*
+ *	drivers/pci/bus.c
+ *
+ * From setup-res.c, by:
+ *	Dave Rusling (david.rusling@reo.mts.dec.com)
+ *	David Mosberger (davidm@cs.arizona.edu)
+ *	David Miller (davem@redhat.com)
+ *	Ivan Kokshaysky (ink@jurassic.park.msu.ru)
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/errno.h>
+#include <linux/ioport.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+
+#include "pci.h"
+
+/**
+ * pci_bus_alloc_resource - allocate a resource from a parent bus
+ * @bus: PCI bus
+ * @res: resource to allocate
+ * @size: size of resource to allocate
+ * @align: alignment of resource to allocate
+ * @min: minimum /proc/iomem address to allocate
+ * @type_mask: IORESOURCE_* type flags
+ * @alignf: resource alignment function
+ * @alignf_data: data argument for resource alignment function
+ *
+ * Given the PCI bus a device resides on, the size, minimum address,
+ * alignment and type, try to find an acceptable resource allocation
+ * for a specific device resource.
+ */
+int
+pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
+	unsigned long size, unsigned long align, unsigned long min,
+	unsigned int type_mask,
+	void (*alignf)(void *, struct resource *,
+			unsigned long, unsigned long),
+	void *alignf_data)
+{
+	int i, ret = -ENOMEM;
+
+	type_mask |= IORESOURCE_IO | IORESOURCE_MEM;
+
+	for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) {
+		struct resource *r = bus->resource[i];
+		if (!r)
+			continue;
+
+		/* type_mask must match */
+		if ((res->flags ^ r->flags) & type_mask)
+			continue;
+
+		/* We cannot allocate a non-prefetching resource
+		   from a pre-fetching area */
+		if ((r->flags & IORESOURCE_PREFETCH) &&
+		    !(res->flags & IORESOURCE_PREFETCH))
+			continue;
+
+		/* Ok, try it out.. */
+		ret = allocate_resource(r, res, size, min, -1, align,
+					alignf, alignf_data);
+		if (ret == 0)
+			break;
+	}
+	return ret;
+}
+
+/**
+ * add a single device
+ * @dev: device to add
+ *
+ * This adds a single pci device to the global
+ * device list and adds sysfs and procfs entries
+ */
+void __devinit pci_bus_add_device(struct pci_dev *dev)
+{
+	device_add(&dev->dev);
+
+	spin_lock(&pci_bus_lock);
+	list_add_tail(&dev->global_list, &pci_devices);
+	spin_unlock(&pci_bus_lock);
+
+	pci_proc_attach_device(dev);
+	pci_create_sysfs_dev_files(dev);
+}
+
+/**
+ * pci_bus_add_devices - insert newly discovered PCI devices
+ * @bus: bus to check for new devices
+ *
+ * Add newly discovered PCI devices (which are on the bus->devices
+ * list) to the global PCI device list, add the sysfs and procfs
+ * entries.  Where a bridge is found, add the discovered bus to
+ * the parents list of child buses, and recurse (breadth-first
+ * to be compatible with 2.4)
+ *
+ * Call hotplug for each new devices.
+ */
+void __devinit pci_bus_add_devices(struct pci_bus *bus)
+{
+	struct pci_dev *dev;
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+		/*
+		 * Skip already-present devices (which are on the
+		 * global device list.)
+		 */
+		if (!list_empty(&dev->global_list))
+			continue;
+		pci_bus_add_device(dev);
+	}
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+
+		BUG_ON(list_empty(&dev->global_list));
+
+		/*
+		 * If there is an unattached subordinate bus, attach
+		 * it and then scan for unattached PCI devices.
+		 */
+		if (dev->subordinate && list_empty(&dev->subordinate->node)) {
+			spin_lock(&pci_bus_lock);
+			list_add_tail(&dev->subordinate->node, &dev->bus->children);
+			spin_unlock(&pci_bus_lock);
+			pci_bus_add_devices(dev->subordinate);
+
+			sysfs_create_link(&dev->subordinate->class_dev.kobj, &dev->dev.kobj, "bridge");
+		}
+	}
+}
+
+void pci_enable_bridges(struct pci_bus *bus)
+{
+	struct pci_dev *dev;
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+		if (dev->subordinate) {
+			pci_enable_device(dev);
+			pci_set_master(dev);
+			pci_enable_bridges(dev->subordinate);
+		}
+	}
+}
+
+EXPORT_SYMBOL(pci_bus_alloc_resource);
+EXPORT_SYMBOL_GPL(pci_bus_add_device);
+EXPORT_SYMBOL(pci_bus_add_devices);
+EXPORT_SYMBOL(pci_enable_bridges);
diff --git a/drivers/pci/gen-devlist.c b/drivers/pci/gen-devlist.c
new file mode 100644
index 00000000000..8abfc499fde
--- /dev/null
+++ b/drivers/pci/gen-devlist.c
@@ -0,0 +1,132 @@
+/*
+ *	Generate devlist.h and classlist.h from the PCI ID file.
+ *
+ *	(c) 1999--2002 Martin Mares <mj@ucw.cz>
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#define MAX_NAME_SIZE 200
+
+static void
+pq(FILE *f, const char *c, int len)
+{
+	int i = 1;
+	while (*c && i != len) {
+		if (*c == '"')
+			fprintf(f, "\\\"");
+		else {
+			fputc(*c, f);
+			if (*c == '?' && c[1] == '?') {
+				/* Avoid trigraphs */
+				fprintf(f, "\" \"");
+			}
+		}
+		c++;
+		i++;
+	}
+}
+
+