Yinghai Lu 0b8f1efad3 sparse irq_desc[] array: core kernel and x86 changes ...

Impact: new feature

Problem on distro kernels: irq_desc[NR_IRQS] takes megabytes of RAM with
NR_CPUS set to large values. The goal is to be able to scale up to much
larger NR_IRQS value without impacting the (important) common case.

To solve this, we generalize irq_desc[NR_IRQS] to an (optional) array of
irq_desc pointers.

When CONFIG_SPARSE_IRQ=y is used, we use kzalloc_node to get irq_desc,
this also makes the IRQ descriptors NUMA-local (to the site that calls
request_irq()).

This gets rid of the irq_cfg[] static array on x86 as well: irq_cfg now
uses desc->chip_data for x86 to store irq_cfg.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2008-12-08 14:31:51 +01:00

..

hotplug

Fix PCI hotplug printk format

2008-10-23 19:48:29 -07:00

pcie

PCI: fix AER capability check

2008-10-20 11:01:52 -07:00

.gitignore

…

access.c

PCI: Limit VPD read/write lengths for Broadcom 5706, 5708, 5709 rev.

2008-07-02 11:25:54 -07:00

bus.c

PCI: make CPU list affinity visible

2008-10-20 10:53:51 -07:00

dmar.c

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

2008-10-21 19:42:20 +01:00

hotplug-pci.c

PCI: fix section mismatch warning in pci_scan_child_bus

2008-03-04 15:07:03 -08:00

hotplug.c

Driver core: change add_uevent_var to use a struct

2007-10-12 14:51:01 -07:00

htirq.c

genirq: remove sparse irq code

2008-10-16 16:53:15 +02:00

intel-iommu.c

intel-iommu: fix compile warnings

2008-11-19 09:11:13 +01:00

intr_remapping.c

sparse irq_desc[] array: core kernel and x86 changes

2008-12-08 14:31:51 +01:00

intr_remapping.h

VT-d: Changes to support KVM

2008-10-15 14:24:08 +02:00

iova.c

VT-d: Changes to support KVM

2008-10-15 14:24:08 +02:00

irq.c

PCI: add routines for debugging and handling lost interrupts

2008-10-23 14:54:18 -07:00

Kconfig

PCI: Add Kconfig option to disable deprecated pci_find_* API

2007-11-05 13:35:17 -08:00

Makefile

PCI: add routines for debugging and handling lost interrupts

2008-10-23 14:54:18 -07:00

msi.c

ACPI/PCI: Set support bit for MSI in support field of _OSC

2008-10-22 16:42:35 -07:00

msi.h

…

pci-acpi.c

PCI: ignore bit0 of _OSC return code

2008-11-11 13:33:05 -08:00

pci-driver.c

PCI: Check dynids driver_data value for validity

2008-10-20 10:48:35 -07:00

pci-sysfs.c

PCI: fix range check on mmapped sysfs resource files

2008-11-03 14:41:16 -08:00

pci.c

pci_setup() is init, not devinit

2008-11-30 10:03:37 -08:00

pci.h

ACPI/PCI: Set support bit for MSI in support field of _OSC

2008-10-22 16:42:35 -07:00

probe.c

PCI: remove unused resource assignment in pci_read_bridge_bases()

2008-10-23 16:17:47 -07:00

proc.c

PCI: fixup sparse endianness warnings in proc.c

2008-07-22 15:19:44 -07:00

quirks.c

pci: Added quirk to disable msi for MCP55 NIC on Asus P5N32-SLI Premium

2008-11-20 20:42:25 -08:00

remove.c

PCI: fix sparse warning in pci_remove_behind_bridge

2008-10-20 10:54:25 -07:00

rom.c

PCI: remove excess kernel-doc notation

2008-11-03 14:32:46 -08:00

search.c

PCI: Fix reference counting bug

2008-10-22 16:42:35 -07:00

setup-bus.c

PCI: use resource_size() everywhere.

2008-10-20 10:54:28 -07:00

setup-irq.c

PCI: use dev_printk when possible

2008-06-25 16:05:13 -07:00

setup-res.c

PCI: use resource_size() everywhere.

2008-10-20 10:54:28 -07:00

slot.c

PCI, PCI Hotplug: introduce slot_name helpers

2008-10-22 16:42:40 -07:00

syscall.c

PCI: remove unneeded lock_kernel() in drivers/pci/syscall.c.

2008-02-01 15:04:21 -08:00