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into 'w1/slaves'
Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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to 'void *'.
Signed-off-by: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (45 commits)
[PATCH] Restore channel setting after scan.
[PATCH] hostap: Fix memory leak on PCI probe error path
[PATCH] hostap: Remove dead code (duplicated idx != 0)
[PATCH] hostap: Fix unlikely read overrun in CIS parsing
[PATCH] hostap: Fix double free in prism2_config() error path
[PATCH] hostap: Fix ap_add_sta() return value verification
[PATCH] hostap: Fix hw reset after CMDCODE_ACCESS_WRITE timeout
[PATCH] wireless/airo: cache wireless scans
[PATCH] wireless/airo: define default MTU
[PATCH] wireless/airo: clean up printk usage to print device name
[PATCH] WE-20 for kernel 2.6.16
[PATCH] softmac: remove function_enter()
[PATCH] skge: version 1.5
[PATCH] skge: compute available ring buffers
[PATCH] skge: dont free skb until multi-part transmit complete
[PATCH] skge: multicast statistics fix
[PATCH] skge: rx_reuse called twice
[PATCH] skge: dont use dev_alloc_skb for rx buffs
[PATCH] skge: align receive buffers
[PATCH] sky2: dont need to use dev_kfree_skb_any
...
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* 'blktrace' of git://brick.kernel.dk/data/git/linux-2.6-block:
[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23
[PATCH] relay: consolidate sendfile() and read() code
[PATCH] relay: add sendfile() support
[PATCH] relay: migrate from relayfs to a generic relay API
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* master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb:
V4L/DVB (3568k): zoran: Use i2c_master_send when possible
V4L/DVB (3568j): adv7175: Drop unused encoder dump command
V4L/DVB (3568i): adv7175: Drop unused register cache
V4L/DVB (3568h): cpia: correct email address
V4L/DVB (3568g): sem2mutex: zoran
V4L/DVB (3568f): saa7110: Fix array overrun
V4L/DVB (3568e): bt856: Spare memory
V4L/DVB (3568d): saa7111.c fix
V4L/DVB (3568c): zoran: Init cleanups
V4L/DVB (3568b): saa7111: Prevent array overrun
V4L/DVB (3568a): saa7114: Fix i2c block write
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (36 commits)
[PATCH] hwmon: add required idr locking
[PATCH] I2C: hwmon: Rename register parameters
[PATCH] I2C: Drop unneeded i2c-dev.h includes
[PATCH] I2C: i2c-ixp4xx: Add hwmon class
[PATCH] I2C: i2c-piix4: Add Broadcom HT-1000 support
[PATCH] I2C: i2c-amd756-s4882: Improve static mutex initialization
[PATCH] I2C: i2c-ali1535: Drop redundant mutex
[PATCH] i2c: Cleanup isp1301_omap
[PATCH] i2c: Fix i2c-ite name initialization
[PATCH] i2c: Drop the i2c-frodo bus driver
[PATCH] i2c: Optimize core_lists mutex usage
[PATCH] w83781d: Don't reset the chip by default
[PATCH] w83781d: Document the alarm and beep bits
[PATCH] w83627ehf: Refactor the sysfs interface
[PATCH] hwmon: Support the Pentium M VID code
[PATCH] hwmon: Add support for the Winbond W83687THF
[PATCH] hwmon: f71805f semaphore to mutex conversions
[PATCH] hwmon: Semaphore to mutex conversions
[PATCH] i2c: Semaphore to mutex conversions, part 3
[PATCH] i2c: Semaphore to mutex conversions, part 2
...
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* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (49 commits)
[PATCH] acpiphp: fix acpi_path_name
[PATCH] ibmphp: remove TRUE and FALSE
[PATCH] PCI Hotplug: add common acpi functions to core
[PATCH] PCI: kzalloc() conversion in drivers/pci
[PATCH] acpiphp: Scan slots under the nested P2P bridge
[PATCH] PCI Hotplug: SN: Fix cleanup on hotplug removal of PPB
[PATCH] shpchp: cleanup bus speed handling
[PATCH] PCI: fix pci_request_region[s] arg
[PATCH] PCI: Provide a boot parameter to disable MSI
[PATCH] PCI: the scheduled removal of PCI_LEGACY_PROC
[PATCH] PCI: cpqphp_ctrl.c: board_replaced(): remove dead code
[PATCH] acpiphp: fix bridge handle
[PATCH] acpiphp - slot management fix - V4
[PATCH] acpi: remove dock event handling from ibm_acpi
[PATCH] acpiphp: add dock event handling
[PATCH] acpi: export acpi_bus_trim
[PATCH] acpiphp: add new bus to acpi
[PATCH] PCI: Move pci_dev_put outside a spinlock
[PATCH] PCI: PCI/Cardbus cards hidden, needs pci=assign-busses to fix
[PATCH] PCI: fix problems with MSI-X on ia64
...
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* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[TG3]: Update driver version and reldate.
[TG3]: Add 5755 nvram support
[TG3]: Add 5755 support
[IPV6]: ip6_xmit: remove unnecessary NULL ptr check
[NET_SCHED]: cls_u32: remove unnecessary NULL-ptr check
[IPV4]: Add fib rule netlink notifications
[BNX2]: Update version and reldate
[BNX2]: Separate tx producer and consumer fields
[BNX2]: Move .h files to bnx2.c
[BNX2]: Combine small mem allocations
[BNX2]: Fix link change handling
[PKTGEN]: Add MPLS extension.
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I encountered the problem that the insmod of the acpiphp
fails because of the mis-freeing of the memory.
I tested this patch on my tiger4 box.
Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch removes the defines TRUE and FALSE and just uses 0 or 1.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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shpchprm_acpi.c and pciehprm_acpi.c are nearly identical. In addition,
there are functions in both these files that are also in acpiphp_glue.c.
This patch will remove duplicate functions from shpchp, pciehp, and
acpiphp and move this functionality to pci_hotplug, as it is not
hardware specific. Get rid of shpchprm* and pciehprm* files since they
are no longer needed. shpchprm_nonacpi.c and pciehprm_nonacpi.c are
identical, as well as shpchprm_legacy.c and can be replaced with a
macro.
This patch also changes acpiphp to use the common hpp code.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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this patch converts drivers/pci to kzalloc usage.
Compile tested with allyes config.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Current ACPIPHP driver scans only slots under the top level PCI-to-PCI
bridge. So hotplug PCI slots under the nested PCI-to-PCI bridge would
not be detected. For example, if the system has the ACPI namespace
like below, hotplug slots woule not be detected.
Device (PCI0) { /* Root bridge */
Name (_HID, "PNP0A03")
Device (P2PA) { /* PCI-to-PCI bridge */
Name (_ADR, ...)
Device (P2PB) { /* PCI-to-PCI bridge */
Name (_ADR, ...)
Device (S0F0) { /* hotplug slot */
Name (_ADR, ...)
Name (_SUN, ...)
Method (_EJ0, ...) { ... }
}
...
Device (S0F7) { /* hotplug slot */
Name (_ADR, ...)
Name (_SUN, ...)
Method (_EJ0, ...) { ... }
}
Device (S1F0) { /* hotplug slot */
Name (_ADR, ...)
Name (_SUN, ...)
Method (_EJ0, ...) { ... }
}
...
}
}
}
This patch fixes this issue.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When doing a hotplug removal of a PPB, sn_bus_store_sysdata()
needs to be called for the PPB and all of its children.
Acked-by: Prarit Bhargava <prarit@sgi.com>
Signed-off-by: John Keller <jpk@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The code related to handling bus speed in SHPCHP driver is
unnecessarily complex. This patch cleans up and simplify that.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Add missing 'const' to pci_request_region[s] 'res_name' arg,
since we pass it directly to __request_region(), whose 'name' arg
is also const.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Several drivers are starting to grow options to disable MSI. However,
it's often a host chipset issue, not something which individual drivers
should handle. So we add the pci=nomsi kernel parameter to allow the user
to disable MSI modes for systems we haven't added to the quirk list yet.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch contains the scheduled removal of PCI_LEGACY_PROC.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The Coverity checker correctly noted, that in function board_replaced in
drivers/pci/hotplug/cpqphp_ctrl.c, the variable src always has the
value 8, and therefore much code after the
...
if (rc || src) {
...
if (rc)
return rc;
else
return 1;
}
...
can never be called.
This patch removes the unreachable code in this function fixing kernel
Bugzilla #6073.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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When hotplug slot is under the host bridge,
DEVICE_ACPI_HANDLE(&bus->self->dev) fails since '&bus->self' was not set.
This patch fixes it.
This patch is based on kristen's latest patches.
I tested this patch on my Tiger4.
Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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o This patch removes IDs (for slots management).
o This patch removes the slot register/unregister processes
from the init/exit phases. Instead, adds these processes
in the bridge add/cleanup phases.
o Currently, this change doesn't have any meanings. But
these changes are needed to support p2p bridge(with
hotplug slot)
Signed-off-by: MUNEDA Takahiro <muneda.takahiro@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove dock station support from ibm_acpi by default. This support has
been put into acpiphp instead. Allow ibm_acpi to continue to provide
docking station support via config option for laptops/docking stations
that are not supported by acpiphp.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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These patches add generic dock event handling to acpiphp. If there are
pci devices that need to be inserted/removed after the dock event, the
event notification will be handed down to the normal pci hotplug event
handler in acpiphp so that new bridges/devices can be enumerated.
Because some dock stations do not have pci bridges or pci devices that
need to be inserted after a dock, acpiphp will remain loaded to handle
dock events even if no hotpluggable pci slots are discovered.
You probably need to have the pci=assign-busses kernel parameter enabled
to use these patches, and you may not allow ibm_acpi to handle docking
notifications and use this patch.
This patch incorporates feedback provided by many.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Export the acpi_bus_trim function so that the pci hotplug driver can
use it.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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If we add a new bridge with subordinate busses, we should call make sure
that acpi is notified so that the PRT (if present) can be read and drivers
who have registered on this bus will be notified when it is started.
Also make sure to use the max reserved bus number for the starting the bus
scan.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch (as659) fixes a might_sleep problem in the PCI core, by moving
a call to pci_dev_put() outside the scope of a spinlock.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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"In some cases, especially on modern laptops with a lot of PCI and cardbus
bridges, we're unable to assign correct secondary/subordinate bus numbers
to all cardbus bridges due to BIOS limitations unless we are using
"pci=assign-busses" boot option." -- Ivan Kokshaysky (from a patch comment)
Without it, Cardbus cards inserted are never seen by PCI because the parent
PCI-PCI Bridge of the Cardbus bridge will not pass and translate Type 1 PCI
configuration cycles correctly and the system will fail to find and
initialise the PCI devices in the system.
Reference: PCI-PCI Bridges: PCI Configuration Cycles and PCI Bus Numbering:
http://www.science.unitn.it/~fiorella/guidelinux/tlk/node72.html
The reason for this is that:
``All PCI busses located behind a PCI-PCI bridge must reside between the
secondary bus number and the subordinate bus number (inclusive).''
"pci=assign-busses" makes pcibios_assign_all_busses return 1 and this
turns on PCI renumbering during PCI probing.
Alan suggested to use DMI automatically set assign-busses on problem systems.
The only question for me was where to put it. I put it directly before
scanning PCI bus into pcibios_scan_root() because it's called from legacy,
acpi and numa and so it can be one place for all systems and configurations
which may need it.
AMD64 Laptops are also affected and fixed by assign-busses, and the code is
also incuded from arch/x86_64/pci/ that place will also work for x86_64
kernels, I only ifdef'-ed the x86-only Laptop in this example.
Affected and known or assumed to be fixed with it are (found by googling):
* ASUS Z71V and L3s
* Samsung X20
* Compaq R3140us and all Compaq R3000 series laptops with TI1620 Controller,
also Compaq R4000 series (from a kernel.org bugreport)
* HP zv5000z (AMD64 3700+, known that fixup_parent_subordinate_busnr fixes it)
* HP zv5200z
* IBM ThinkPad 240
* An IBM ThinkPad (1.8 GHz Pentium M) debugged by Pavel Machek
gives the correspondig message which detects the possible problem.
* MSI S260 / Medion SIM 2100 MD 95600
The patch also expands the "try pci=assign-busses" warning so testers will
help us to update the DMI table.
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Use "unsigned long" when dealing with PCI resources.
The BAR Indicator Register (BIR) can be a 64-bit value
or the resource could be a 64-bit host physical address.
Enables ib_mthca and cciss drivers to use MSI-X on ia64 HW.
Problem showed up now because of new system firmware on one platform.
Symptom will either be memory corruption or MCA.
Second part of this patch deals with "useless" code.
We walk through the steps to find the phys_addr and then
don't use the result. I suspect the intent was to zero
out the respective MSI-X entry but I'm not sure at the moment.
Delete the code inside the #if 0/#endif if it's really
not needed.
Signed-off-by: Grant Grundler <iod00d@hp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Remove pcie port driver's msi save/restore code.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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It turns out AMD 8131 quirk only affects MSI for devices behind the 8131 bridge.
Handle this by adding a flags field in pci_bus, inherited from parent to child.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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On ASUS A8V and A8V Deluxe boards, the onboard AC97 audio controller
and MC97 modem controller are deactivated when a second PCI soundcard
is present. This patch enables them.
Signed-off-by: Bauke Jan Douma <bjdouma@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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I attach a trivial patch for 2.6.15.4 that unhides SMBus controller
on an HP Compaq nx6110 notebook.
Signed-off-by: Tomasz Koprowski <tomek@koprowski.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The extra compatability code is not necessary. Any code still using
the old shutdown method will trigger the warning in driver_register()
instead.
Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch adapts SHPCHP driver to the PCI device driver model.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Current SHPCHP driver doesn't care about the confliction between
hotplug operation via sysfs and hotplug operation via attention
button. So if those ware conflicted, slot could be an unexpected
state.
This patch changes SHPCHP driver to handle slot state properly. With
this patch, slot events are handled according to the current slot
state as shown at the Table below.
Table. Slot States and Event Handling
=========================================================================
Slot State Event and Action
=========================================================================
STATIC - Go to POWERON state if user initiates
(Slot enabled, insertion request via sysfs
Slot disabled) - Go to POWEROFF state if user initiates removal
request via sysfs
- Go to BLINKINGON state if user presses
attention button when the slot is disabled
- Go to BLINKINGOFF state if user presses
attention button when the slot is enabled
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The event handler of SHPCHP driver is unnecessarily very complex. In
addition, current event handler can only a fixed number of events at
the same time, and some of events would be lost if several number of
events happened at the same time.
This patch simplify the event handler by using 'work queue', and it
also fix the above-mentioned issue.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The wait_for_ctrl_irq() function in SHPCHP driver is no longer needed.
This patch removes that. This patch has no functional change.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch removes unused 'pci_bus' member from controller structure.
This patch have no functional change.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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from pci_scan_bridge.
> On Mon, Feb 13, 2006 at 05:13:21PM -0800, David S. Miller wrote:
> >
> > In drivers/pci/probe.c:pci_scan_bridge(), if this is not the first
> > pass (pass != 0) we don't restore the PCI_BRIDGE_CONTROL_REGISTER and
> > thus leave PCI_BRIDGE_CTL_MASTER_ABORT off:
> >
> > int __devinit pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass)
> > {
> > ...
> > /* Disable MasterAbortMode during probing to avoid reporting
> > of bus errors (in some architectures) */
> > pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bctl);
> > pci_write_config_word(dev, PCI_BRIDGE_CONTROL,
> > bctl & ~PCI_BRIDGE_CTL_MASTER_ABORT);
> > ...
> > if ((buses & 0xffff00) && !pcibios_assign_all_busses() && !is_cardbus) {
> > unsigned int cmax, busnr;
> > /*
> > * Bus already configured by firmware, process it in the first
> > * pass and just note the configuration.
> > */
> > if (pass)
> > return max;
> > ...
> > }
> >
> > pci_write_config_word(dev, PCI_BRIDGE_CONTROL, bctl);
> > ...
> >
> > This doesn't seem intentional.
Agreed, looks like an accident. The patch [1] originally came from Kip
Walker (Broadcom back then) between 2.6.0-test3 and 2.6.0-test4. As I
recall it was supposed to fix an issue with with PCI aborts being
signalled by the PCI bridge of the Broadcom BCM1250 family of SOCs when
probing behind pci_scan_bridge. It is undeseriable to disable
PCI_BRIDGE_CTL_MASTER_ABORT in pci_{read,write)_config_* and the
behaviour wasn't considered a bug in need of a workaround, so this was
put in probe.c.
I don't have an affected system at hand, so can't really test but I
propose something like the below patch.
[1] http://www.linux-mips.org/git?p=linux.git;a=commit;h=599457e0cb702a31a3247ea6a5d9c6c99c4cf195
[PCI] Avoid leaving MASTER_ABORT disabled permanently when returning from pci_scan_bridge.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Current SHPCHP driver has a bug in its interrupt handler which cause
"IRQ #: nobody cared" oops. This problem can be reproduced easily by
the following operation.
# cd /sys/bus/pci/slots/<slot#>
# while true; do echo 1 > attention ; done &
The reason is that when command complete interrupt is raised, current
SHPCHP driver's interrupt handler returns IRQ_NONE regardless of if
the interrupt is handled or not.
This patch fixes this issue.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch moves slot name area into struct slot.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch removes unnecessary 'magic' member from struct slot of
SHPCHP driver.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch replaces kmalloc() and memset() pair with kzalloc() and
cleans up the arg of sizeof() in SHPCHP driver.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch cleans up pcihp_skelton.c as follows.
o Move slot name area into struct slot.
o Replace kmalloc with kzalloc and clean up the arg of sizeof()
o Fix the wrong use of get_*_status() functions.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Current shpchp driver might cause system panic because of lack of
serialization. It can be reproduced very easily by the following
operation.
# cd /sys/bus/pci/slots/<slot#>
# while true; do echo 0 > power ; echo 1 > power ; done &
# while true; do echo 0 > power ; echo 1 > power ; done &
This patch fixes this issue by changing shpchp to get appropreate
semaphore for hot-plug operation.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch cleanups codes that check the command status. For this, it
introduces a new semaphore "cmd_sem" for each controller.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch changes SHPCHP driver to use list_head structure for
managing controller list.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch changes SHPCHP driver to use list_head structure for
managing slot list.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch cleanups some codes in shpchp_core.c. This patch has no
functional changes.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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This patch cleanups init_slots() function of SHPCHP driver based on
pcihp_skelton.c. This patch has no functional change.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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