linux-toradex.git/drivers/pci/hotplug/acpiphp_glue.c, branch v2.6.27.31

ACPI: Change acpi_evaluate_integer to support 64-bit on 32-bit kernels

2009-02-06T22:00:42+00:00

commit 27663c5855b10af9ec67bc7dfba001426ba21222 upstream

As of version 2.0, ACPI can return 64-bit integers.  The current
acpi_evaluate_integer only supports 64-bit integers on 64-bit platforms.
Change the argument to take a pointer to an acpi_integer so we support
64-bit integers on all platforms.

lenb: replaced use of "acpi_integer" with "unsigned long long"
lenb: fixed bug in acpi_thermal_trips_update()

Signed-off-by: Matthew Wilcox 
Signed-off-by: Len Brown 
Cc: Thomas Renninger 
Signed-off-by: Greg Kroah-Hartman

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

2008-07-17T00:25:46+00:00

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (72 commits)
  Revert "x86/PCI: ACPI based PCI gap calculation"
  PCI: remove unnecessary volatile in PCIe hotplug struct controller
  x86/PCI: ACPI based PCI gap calculation
  PCI: include linux/pm_wakeup.h for device_set_wakeup_capable
  PCI PM: Fix pci_prepare_to_sleep
  x86/PCI: Fix PCI config space for domains > 0
  Fix acpi_pm_device_sleep_wake() by providing a stub for CONFIG_PM_SLEEP=n
  PCI: Simplify PCI device PM code
  PCI PM: Introduce pci_prepare_to_sleep and pci_back_from_sleep
  PCI ACPI: Rework PCI handling of wake-up
  ACPI: Introduce new device wakeup flag 'prepared'
  ACPI: Introduce acpi_device_sleep_wake function
  PCI: rework pci_set_power_state function to call platform first
  PCI: Introduce platform_pci_power_manageable function
  ACPI: Introduce acpi_bus_power_manageable function
  PCI: make pci_name use dev_name
  PCI: handle pci_name() being const
  PCI: add stub for pci_set_consistent_dma_mask()
  PCI: remove unused arch pcibios_update_resource() functions
  PCI: fix pci_setup_device()'s sprinting into a const buffer
  ...

Fixed up conflicts in various files (arch/x86/kernel/setup_64.c,
arch/x86/pci/irq.c, arch/x86/pci/pci.h, drivers/acpi/sleep/main.c,
drivers/pci/pci.c, drivers/pci/pci.h, include/acpi/acpi_bus.h) from x86
and ACPI updates manually.

PCI: acpiphp: cleanup notify handler on all root bridges

2008-07-02T18:27:30+00:00

During the development of the physical PCI slot patch series, Gary Hade
kept on reporting strange oopses due to interactions between pci_slot
and acpiphp.

	http://lkml.org/lkml/2007/11/28/319

find_root_bridges() unconditionally installs
handle_hotplug_event_bridge() as an ACPI_SYSTEM_NOTIFY handler for all
root bridges.

However, during module cleanup, remove_bridge() will only remove the
notify handler iff the root bridge had a hot-pluggable slot directly
underneath. That is:

	root bridge -> hotplug slot

But, if the topology looks like either of the following:

	root bridge -> non-hotplug slot
	root bridge -> p2p bridge -> hotplug slot

Then we currently do not remove the notify handler from that root
bridge.

This can cause a kernel oops if we modprobe acpiphp later and it gets
loaded somewhere else in memory. If the root bridge then receives a
hotplug event, it will then attempt to call a stale, non-existent notify
handler and we blow up.

Much thanks goes to Gary Hade for his persistent debugging efforts.

Signed-off-by: Alex Chiang 
Signed-off-by: Gary Hade 
Signed-off-by: Jesse Barnes

PCI: introduce pci_slot

2008-06-10T21:37:03+00:00

Currently, /sys/bus/pci/slots/ only exposes hotplug attributes when a
hotplug driver is loaded, but PCI slots have attributes such as address,
speed, width, etc.  that are not related to hotplug at all.

Introduce pci_slot as the primary data structure and kobject model.
Hotplug attributes described in hotplug_slot become a secondary
structure associated with the pci_slot.

This patch only creates the infrastructure that allows the separation of
PCI slot attributes and hotplug attributes.  In this patch, the PCI
hotplug core remains the only user of this infrastructure, and thus,
/sys/bus/pci/slots/ will still only become populated when a hotplug
driver is loaded.

A later patch in this series will add a second user of this new
infrastructure and demonstrate splitting the task of exposing pci_slot
attributes from hotplug_slot attributes.

  - Make pci_slot the primary sysfs entity. hotplug_slot becomes a
    subsidiary structure.
    o pci_create_slot() creates and registers a slot with the PCI core
    o pci_slot_add_hotplug() gives it hotplug capability

  - Change the prototype of pci_hp_register() to take the bus and
    slot number (on parent bus) as parameters.

  - Remove all the ->get_address methods since this functionality is
    now handled by pci_slot directly.

[achiang@hp.com: rpaphp-correctly-pci_hp_register-for-empty-pci-slots]
Tested-by: Badari Pulavarty 
Acked-by: Benjamin Herrenschmidt 
[akpm@linux-foundation.org: build fix]
[akpm@linux-foundation.org: make headers_check happy]
[akpm@linux-foundation.org: nuther build fix]
[akpm@linux-foundation.org: fix typo in #include]
Signed-off-by: Alex Chiang 
Signed-off-by: Matthew Wilcox 
Cc: Greg KH 
Cc: Kristen Carlson Accardi 
Cc: Len Brown 
Acked-by: Kenji Kaneshige 
Signed-off-by: Andrew Morton 
Signed-off-by: Jesse Barnes

PCI: replace remaining FUNCTION occurrences

2008-04-21T04:47:09+00:00

__FUNCTION__ is gcc-specific, use __func__

Signed-off-by: Harvey Harrison 
Signed-off-by: Greg Kroah-Hartman

PCI: fix section mismatch warning in pci_scan_child_bus

2008-03-04T23:07:03+00:00

Fix following warning:
WARNING: vmlinux.o(.text+0x47bdb1): Section mismatch in reference from the function pci_scan_child_bus() to the function .devinit.text:pcibios_fixup_bus()

We had plenty of functions that could be annotated __devinit but due to
the former restriction that exported symbols could not be annotated
they were not so.  So annotate these function and fix the references
from the pci/hotplug/* code to silence the resuting warnings.

Signed-off-by: Sam Ravnborg 
Signed-off-by: Greg Kroah-Hartman

PCI Hotplug: acpiphp: remove unneeded acpi_get_name function call

2008-02-01T23:04:24+00:00

acpi_get_name() is called before and after dbg(). The latter is
useless and should be removed.

Signed-off-by: Kristen Carlson Accardi 
Signed-off-by: Greg Kroah-Hartman

PCI Hotplug: acpiphp: fix trivial typos

2008-02-01T23:04:23+00:00

fix trivial typos.

Signed-off-by: MUNEDA Takahiro 
Signed-off-by: Kristen Carlson Accardi 
Signed-off-by: Greg Kroah-Hartman

pci hotplug: kernel-doc fixes

2007-11-28T22:35:26+00:00

acpiphp.h: not using kernel-doc, so change /** to /*
acpiphp_core.c: lots of kernel-doc cleanups
acpiphp_glue.c: lots of kernel-doc cleanups
acpiphp_ibm.c: lots of kernel-doc cleanups
cpqphp_core.c: lots of kernel-doc cleanups
cpqphp_ctrl.c: lots of kernel-doc cleanups
fakephp.c:  correct kernel-doc notation
pciehp_ctrl.c: correct kernel-doc notation
rpadlpar_core.c: correct function names & kernel-doc notation
rpaphp_core.c: correct kernel-doc notation
shpchp_ctrl.c: correct kernel-doc notation

Signed-off-by: Randy Dunlap 
Cc: Kristen Accardi 
Signed-off-by: Greg Kroah-Hartman

PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure

2007-07-11T23:02:13+00:00

On some systems, the ACPI bus check event can reference a bridge that is
higher in the ACPI hierarchy than the bridge immediately above the
hotplug PCI slot into which an adapter was just inserted.  The current
'acpiphp' code expects the bus check event to reference the bridge
immediately above the slot that received the adapter so the hotplug
operation can fail on these systems with the message "acpiphp_glue:
cannot get bridge info".  This change fixes the problem by
re-enumerating all slots that lie below the bridge referenced by the bus
check event, including those slots that may be located under lower level
PCI-to-PCI bridge(s).

Signed-off-by: Gary Hade 
Cc: 
Signed-off-by: Kristen Carlson Accardi 
Signed-off-by: Greg Kroah-Hartman