linux/drivers/acpi
rajesh.shah@intel.com a3a45ec8f8 [PATCH] pciehp: clean-up how we request control of hotplug hardware
This patch further tweaks how we request control of hotplug
controller hardware from BIOS. We first search the ACPI namespace
corresponding to a specific hotplug controller looking for an
_OSC or OSHP method. On failure, we successively move to the
ACPI parent object, till we hit the highest level host bridge
in the hierarchy. This allows for different types of BIOS's
which place the _OSC/OSHP methods at various places in the acpi
namespace, while still not encroaching on the namespace of
some other root level host bridge.

This patch also introduces a new load time option (pciehp_force)
that allows us to bypass all _OSC/OSHP checking. Not supporting
these methods seems to be be the most common ACPI firmware problem
we've run into. This will still _not_ allow the pciehp driver to
work correctly if the BIOS really doesn't support pciehp (i.e. if
it doesn't generate a hotplug interrupt). Use this option with
caution.  Some BIOS's may deliberately not build any _OSC/OSHP
methods to make sure it retains control the hotplug hardware.
Using the pciehp_force parameter for such systems can lead to
two separate entities trying to control the same hardware.

Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-11-10 16:09:15 -08:00
..
dispatcher [ACPI] ACPICA 20050902 2005-09-03 00:15:11 -04:00
events [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
executer [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
hardware [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
namespace [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
parser [ACPI] ACPICA 20050902 2005-09-03 00:15:11 -04:00
resources [ACPI] ACPICA 20050902 2005-09-03 00:15:11 -04:00
sleep [PATCH] introduce .valid callback for pm_ops 2005-10-30 17:37:15 -08:00
tables [ACPI] ACPICA 20050815 2005-08-29 23:44:25 -04:00
utilities [ACPI] ACPICA 20050902 2005-09-03 00:15:11 -04:00
ac.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
acpi_memhotplug.c [PATCH] memory hotplug: move section_mem_map alloc to sparse.c 2005-10-29 21:40:44 -07:00
asus_acpi.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
battery.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
blacklist.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
bus.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
button.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
container.c [PATCH] kfree cleanup: misc remaining drivers 2005-11-07 07:54:05 -08:00
debug.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
ec.c [ACPI] Lindent drivers/acpi/ec.c 2005-08-11 17:33:10 -04:00
event.c [PATCH] Fix /proc/acpi/events around suspend 2005-10-17 17:03:57 -07:00
fan.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
glue.c [PATCH] pciehp: clean-up how we request control of hotplug hardware 2005-11-10 16:09:15 -08:00
hotkey.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
ibm_acpi.c [ACPI] IBM ThinkPad ACPI Extras Driver v0.12 2005-08-25 17:37:51 -04:00
Kconfig [PATCH] Fix CONFIG_ACPI_BLACKLIST_YEAR 2005-09-09 10:45:35 -07:00
Makefile [ACPI] delete CONFIG_ACPI_PCI 2005-08-25 12:40:44 -04:00
motherboard.c Merge from-linus to-akpm 2005-08-15 16:07:26 -04:00
numa.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
osl.c [PATCH] drivers/acpi: fix-up schedule_timeout() usage 2005-11-07 07:53:56 -08:00
pci_bind.c [ACPI] add static to function definitions 2005-09-03 00:20:13 -04:00
pci_irq.c [ACPI] fix run-time error checking in acpi_pci_irq_disable() 2005-09-03 00:36:26 -04:00
pci_link.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
pci_root.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
power.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
processor_core.c [ACPI] revert bad processor_core.c patch for bug 5128 2005-09-03 12:41:12 -04:00
processor_idle.c [PATCH] sched: resched and cpu_idle rework 2005-11-09 07:56:33 -08:00
processor_perflib.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
processor_thermal.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
processor_throttling.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
scan.c [PATCH] kfree cleanup: misc remaining drivers 2005-11-07 07:54:05 -08:00
system.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
tables.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
thermal.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
toshiba_acpi.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
utils.c [ACPI] Lindent all ACPI files 2005-08-05 00:45:14 -04:00
video.c [PATCH] kfree cleanup: misc remaining drivers 2005-11-07 07:54:05 -08:00