| b67ea76172d4b1922c4b3c46c8ea8e9fec1ff38c |
|
17-Feb-2010 |
Rafael J. Wysocki <rjw@sisk.pl> |
PCI / ACPI / PM: Platform support for PCI PME wake-up
Although the majority of PCI devices can generate PMEs that in
principle may be used to wake up devices suspended at run time,
platform support is generally necessary to convert PMEs into wake-up
events that can be delivered to the kernel. If ACPI is used for this
purpose, PME signals generated by a PCI device will trigger the ACPI
GPE associated with the device to generate an ACPI wake-up event that
we can set up a handler for, provided that everything is configured
correctly.
Unfortunately, the subset of PCI devices that have GPEs associated
with them is quite limited. The devices without dedicated GPEs have
to rely on the GPEs associated with other devices (in the majority of
cases their upstream bridges and, possibly, the root bridge) to
generate ACPI wake-up events in response to PME signals from them.
Add ACPI platform support for PCI PME wake-up:
o Add a framework making is possible to use ACPI system notify
handlers for run-time PM.
o Add new PCI platform callback ->run_wake() to struct
pci_platform_pm_ops allowing us to enable/disable the platform to
generate wake-up events for given device. Implemet this callback
for the ACPI platform.
o Define ACPI wake-up handlers for PCI devices and PCI root buses and
make the PCI-ACPI binding code register wake-up notifiers for all
PCI devices present in the ACPI tables.
o Add function pci_dev_run_wake() which can be used by PCI drivers to
check if given device is capable of generating wake-up events at
run time.
Developed in cooperation with Matthew Garrett <mjg@redhat.com>.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
/drivers/acpi/pci_bind.c
|
| 80ffdedf6020a77adcd06c01cfe6c488312b28f8 |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: kill acpi_get_pci_id
acpi_get_pci_dev() is better, and all callers have been converted, so
eliminate acpi_get_pci_id().
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 97719a8726fe8d3ea12a85fbf4f514a915ba30ec |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: acpi_pci_unbind should clean up properly after acpi_pci_bind
In acpi_pci_bind, we set device->ops.bind and device->ops.unbind, but
never clear them out.
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| d9efae3688addb15994c9ad9761dada6f988bc14 |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: simplify acpi_pci_irq_del_prt() API
There is no need to pass a segment/bus tuple to this API, as the callsite
always has a struct pci_bus. We can derive segment/bus from the
struct pci_bus, so let's take this opportunit to simplify the API and
make life easier for the callers.
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 859a3f86ca83346f4097e956d0b27d96aa7a1cff |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: simplify acpi_pci_irq_add_prt() API
A PCI domain cannot change as you descend down subordinate buses, which
makes the 'segment' argument to acpi_pci_irq_add_prt() useless.
Change the interface to take a struct pci_bus *, from whence we can derive
the bus number and segment. Reducing the number of arguments makes life
simpler for callers.
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 499650de6906722184b639989b47227a362b62f8 |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: eviscerate pci_bind.c
Now that we can dynamically convert an ACPI CA handle to a
struct pci_dev at runtime, there's no need to statically bind
them during boot.
acpi_pci_bind/unbind are vastly simplified, and are only used
to evaluate _PRT methods on P2P bridges and non-bridge children.
This patch also changes the time-space tradeoff ever so slightly.
Looking up the ACPI-PCI binding is never in the performance path, and by
eliminating this caching, we save 24 bytes for each _ADR device in the
ACPI namespace.
This patch lays further groundwork to eventually eliminate
the acpi_driver_ops.bind callback.
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| c22d7f5a389dad15de448b142f44e4000b3426f0 |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: rearrange acpi_pci_bind/acpi_pci_unbind in pci_bind.c
This is a pure code movement patch that does $subject in order
to make the following patch easier to read and review.
No functional change.
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| ce597bb42aa84bc73db80509b7c37e7fbc0b75c4 |
|
10-Jun-2009 |
Alexander Chiang <achiang@hp.com> |
ACPI: make acpi_pci_bind() static
acpi_pci_root_add() explicitly assigns device->ops.bind, and later
calls acpi_pci_bind_root(), which also does the same thing.
We don't need to repeat ourselves; removing the explicit assignment
allows us to make acpi_pci_bind() static.
Signed-off-by: Alex Chiang <achiang@hp.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| dacd2549ca61ddbdd1ed62a76ca95dea3f0e02c6 |
|
26-May-2009 |
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> |
PCI/ACPI: fix wrong ref count handling in acpi_pci_bind()
The 'dev' field of struct acpi_pci_data is having a pointer to struct
pci_dev without incrementing the reference counter. Because of this, I
got the following kernel oops when I was doing some pci hotplug
operations. This patch fixes this bug by replacing wrong hand-made
pci_find_slot() with pci_get_slot() in acpi_pci_bind().
BUG: unable to handle kernel NULL pointer dereference at 00000000000000e8
IP: [<ffffffff803f0e9b>] acpi_pci_unbind+0xb1/0xdd
Call Trace:
[<ffffffff803ecee4>] acpi_bus_remove+0x54/0x68
[<ffffffff803ecf6d>] acpi_bus_trim+0x75/0xe3
[<ffffffffa0345ddd>] acpiphp_disable_slot+0x16d/0x1e0 [acpiphp]
[<ffffffffa03441f0>] disable_slot+0x20/0x60 [acpiphp]
[<ffffffff803cfc18>] power_write_file+0xc8/0x110
[<ffffffff803c6a54>] pci_slot_attr_store+0x24/0x30
[<ffffffff803469ce>] sysfs_write_file+0xce/0x140
[<ffffffff802e94e7>] vfs_write+0xc7/0x170
[<ffffffff802e9aa0>] sys_write+0x50/0x90
[<ffffffff8020bd6b>] system_call_fastpath+0x16/0x1b
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Reviewed-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Reviewed-by: Alex Chiang <achiang@hp.com>
Tested-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 087da3b4e2d7d3ef70a4fa649b9a286fdeb0e44e |
|
31-Dec-2008 |
Len Brown <len.brown@intel.com> |
ACPI: simplify buffer management for acpi_pci_bind() etc.
use ACPI_ALLOCATE_BUFFER to remove the allocations
within acpi_pci_bind(), acpi_pci_unbind() and acpi_pci_bind_root().
While there, delete some unnecessary param inits from those routines.
Delete concept of ACPI_PATHNAME_MAX, since this was the last use.
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 21a53283a012f21764f2aaaac9414849e1153d93 |
|
09-Dec-2008 |
Bjorn Helgaas <bjorn.helgaas@hp.com> |
ACPI: PCI: use conventional PCI address format
Use the conventional format for PCI addresses (%04x:%02x:%02x.%d).
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| e5685b9d35c2cc0a98425b05df30cb837dd1e632 |
|
24-Oct-2007 |
Adrian Bunk <bunk@kernel.org> |
ACPI: misc cleanups
This patch contains the following possible cleanups:
- make the following needlessly global code static:
- drivers/acpi/bay.c:dev_attr_eject
- drivers/acpi/bay.c:dev_attr_present
- drivers/acpi/dock.c:dev_attr_docked
- drivers/acpi/dock.c:dev_attr_flags
- drivers/acpi/dock.c:dev_attr_uid
- drivers/acpi/dock.c:dev_attr_undock
- drivers/acpi/pci_bind.c:acpi_pci_unbind()
- drivers/acpi/pci_link.c:acpi_link_lock
- drivers/acpi/sbs.c:acpi_sbs_callback()
- drivers/acpi/sbshc.c:acpi_smbus_transaction()
- drivers/acpi/sleep/main.c:acpi_sleep_prepare()
- #if 0 the following unused global functions:
- drivers/acpi/numa.c:acpi_unmap_pxm_to_node()
- remove the following unused EXPORT_SYMBOL's:
- acpi_register_gsi
- acpi_unregister_gsi
- acpi_strict
- acpi_bus_receive_event
- register_acpi_bus_type
- unregister_acpi_bus_type
- acpi_os_printf
- acpi_os_sleep
- acpi_os_stall
- acpi_os_read_pci_configuration
- acpi_os_create_semaphore
- acpi_os_delete_semaphore
- acpi_os_wait_semaphore
- acpi_os_signal_semaphore
- acpi_os_signal
- acpi_pci_irq_enable
- acpi_get_pxm
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 6ce7641b879e4b9ead46e14275d9d3645b47fa63 |
|
20-Nov-2007 |
Gary Hade <garyhade@us.ibm.com> |
ACPI: acpiphp: Remove dmesg spam on device remove
In cases where acpi_pci_bind() does not
attach device data, acpi_pci_unbind()
complains via an ACPI exception about the missing data when
the device is removed. For example, acpi_pci_bind() does not
attach data for non-existent device functions so when the device
is removed using the ACPI PCI hotplug driver 'acpiphp' an ACPI
exception is logged for every non-existent function. This patch
avoids the confusing log messages by removing the unnecessary
ACPI exception.
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| f52fd66d2ea794010c2d7536cf8e6abed0ac4947 |
|
13-Feb-2007 |
Len Brown <len.brown@intel.com> |
ACPI: clean up ACPI_MODULE_NAME() use
cosmetic only
Make "module name" actually match the file name.
Invoke with ';' as leaving it off confuses Lindent and gcc doesn't care.
Fix indentation where Lindent did get confused.
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 36bcbec7ce21e2e8b3143b11a05747330abeca70 |
|
19-Dec-2006 |
Burman Yan <yan_952@hotmail.com> |
ACPI: replace kmalloc+memset with kzalloc
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 50dd096973f1d95aa03c6a6d9e148d706b62b68e |
|
01-Oct-2006 |
Jan Engelhardt <jengelh@linux01.gwdg.de> |
ACPI: Remove unnecessary from/to-void* and to-void casts in drivers/acpi
Signed-off-by: Jan Engelhardt <jengelh@gmx.de>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| d550d98d3317378d93a4869db204725d270ec812 |
|
27-Jun-2006 |
Patrick Mochel <mochel@linux.intel.com> |
ACPI: delete tracing macros from drivers/acpi/*.c
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 6468463abd7051fcc29f3ee7c931f9bbbb26f5a4 |
|
27-Jun-2006 |
Len Brown <len.brown@intel.com> |
ACPI: un-export ACPI_ERROR() -- use printk(KERN_ERR...)
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| a6fc67202e0224e6c9d1d285cc0b444bce887ed5 |
|
27-Jun-2006 |
Thomas Renninger <trenn@suse.de> |
ACPI: Enable ACPI error messages w/o CONFIG_ACPI_DEBUG
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 8713cbefafbb5a101ade541a4b0ffa108bf697cc |
|
02-Sep-2005 |
Adrian Bunk <bunk@stusta.de> |
[ACPI] add static to function definitions
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 4be44fcd3bf648b782f4460fd06dfae6c42ded4b |
|
05-Aug-2005 |
Len Brown <len.brown@intel.com> |
[ACPI] Lindent all ACPI files
Signed-off-by: Len Brown <len.brown@intel.com>
/drivers/acpi/pci_bind.c
|
| 4ce448e5fae62689b06027b46f470b944e5c2193 |
|
28-Apr-2005 |
Rajesh Shah <rajesh.shah@intel.com> |
[PATCH] acpi bridge hotadd: Export the interface to get PCI id for an ACPI handle
Export an acpi interface to get PCI domain/bus/devfn information from the
corresponding namespace handle. Used by acpiphp code to transpate the device
handle of the hot-plugged root bridge to the corresponding pci location
information.
Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
/drivers/acpi/pci_bind.c
|
| c431ada45d65b305a6aab4557067e564b23ce5a5 |
|
28-Apr-2005 |
Rajesh Shah <rajesh.shah@intel.com> |
[PATCH] acpi bridge hotadd: ACPI based root bridge hot-add
When you hot-plug a (root) bridge hierarchy, it may have p2p bridges and
devices attached to it that have not been configured by firmware. In this
case, we need to configure the devices before starting them. This patch
separates device start from device scan so that we can introduce the
configuration step in the middle.
I kept the existing semantics for pci_scan_bus() since there are a huge number
of callers to that function.
Also, I have no way of testing the changes I made to the parisc files, so this
needs review by those folks. Sorry for the massive cross-post, this touches
files in many different places.
Signed-off-by: Rajesh Shah <rajesh.shah@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
/drivers/acpi/pci_bind.c
|
| 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
|
17-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-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!
/drivers/acpi/pci_bind.c
|