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* [PATCH] PCI: prevent down_read when pci_devices is emptyArd van Breemen2007-01-06
| | | | | | | | | | | | | | | | | | | | The pci_find_subsys gets called very early by obsolete ide setup parameters. This is a bogus call since pci is not initialized yet, so the list is empty. But in the mean time, interrupts get enabled by down_read. This can result in a kernel panic when the irq controller gets initialized. This patch checks if the device list is empty before taking the semaphore, and hence will not enable irq's. Furthermore it will inform that it is called while pci_devices is empty as a reminder that the ide code needs to be fixed. The pci_get_subsys can get called in the same manner, and as such is patched in the same manner. [akpm@osdl.org: cleanups] Signed-off-by: Ard van Breemen <ard@telegraafnet.nl> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] pci/probe: fix macro that confuses kernel-docRandy Dunlap2006-12-30
| | | | | | | | | | | | Don't have macros between a function's kernel-doc block and the function definition. This is not valid for kernel-doc. Warning(/var/linsrc/linux-2.6.20-rc1-git8//drivers/pci/probe.c:653): No description found for parameter 'IORESOURCE_PCI_FIXED' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'release' of ↵Linus Torvalds2006-12-22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (68 commits) ACPI: replace kmalloc+memset with kzalloc ACPI: Add support for acpi_load_table/acpi_unload_table_id fbdev: update after backlight argument change ACPI: video: Add dev argument for backlight_device_register ACPI: Implement acpi_video_get_next_level() ACPI: Kconfig - depend on PM rather than selecting it ACPI: fix NULL check in drivers/acpi/osl.c ACPI: make drivers/acpi/ec.c:ec_ecdt static ACPI: prevent processor module from loading on failures ACPI: fix single linked list manipulation ACPI: ibm_acpi: allow clean removal ACPI: fix git automerge failure ACPI: ibm_acpi: respond to workqueue update ACPI: dock: add uevent to indicate change in device status ACPI: ec: Lindent once again ACPI: ec: Change #define to enums there possible. ACPI: ec: Style changes. ACPI: ec: Acquire Global Lock under EC mutex. ACPI: ec: Drop udelay() from poll mode. Loop by reading status field instead. ACPI: ec: Rename gpe_bit to gpe ...
| * ACPI: replace kmalloc+memset with kzallocBurman Yan2006-12-20
| | | | | | | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
* | [PATCH] increase CARDBUS_MEM_SIZEAndrew Morton2006-12-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Linus sayeth: Google knows everything, and finds, on MS own site no less: "Windows 2000 default resources: One 4K memory window One 2 MB memory window Two 256-byte I/O windows" which is clearly utterly bogus and insufficient. But Microsoft apparently realized this, and: "Windows XP default resources: Because one memory window of 4K and one window of 2 MB are not sufficient for CardBus controllers in many configurations, Windows XP allocates larger memory windows to CardBus controllers where possible. However, resource windows are static (that is, the operating system does not dynamically allocate larger memory windows if new devices appear.) Under Windows XP, CardBus controllers will be assigned the following resources: One 4K memory window, as in Windows 2000 64 MB memory, if that amount of memory is available. If 64 MB is not available the controller will receive 32 MB; if 32 MB is not available, the controller will receive 16 MB; if 16 MB is not available, the bridge will receive 8 MB; and so on down to a minimum assignment of 1 MB in configurations where memory is too constrained for the operating system to provide a larger window. Two 256-byte I/O windows" So I think we have our answer. Windows uses one 4k window, and one 64MB window. And they are no more dynamic than we are (we _could_ try to do it dynamically, but let's face it, it's fairly painful to dynamically expand PCI bus resources - you may need to reprogram everything up to the root, so it would be absolutely crazy to do that unless you have some serious masochistic tendencies). So let's just increase our default value to 64M too. Cc: Markus Rechberger <mrechberger@gmail.com> Cc: Daniel Ritz <daniel.ritz@gmx.ch> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | acpiphp: Link-time error for PCI HotplugKristen Carlson Accardi2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm seeing: `acpiphp_glue_exit' referenced in section `.init.text' of drivers/built-in.o: defined in discarded section `.exit.text' of drivers/built-in.o when trying to compile an IA64 kernel with PCI hotplug enabled. I suggest this patch: Signed-off-by: Peter Chubb <peterc@gelato.unsw.edu.au> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | shpchp: cleanup shpchp.hKenji Kaneshige2006-12-20
| | | | | | | | | | | | | | | | | | | | This patch cleans up shpchp.h. 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>
* | shpchp: remove shpchprm_get_physical_slot_numberKenji Kaneshige2006-12-20
| | | | | | | | | | | | | | | | | | | | | | This patch removes unnecessary shpchprm_get_physical_slot_number() function. 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>
* | shpchp: cleanup struct controllerKenji Kaneshige2006-12-20
| | | | | | | | | | | | | | | | | | | | This patch removes unused/unnecessary members from struct controller. 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>
* | shpchp: remove unnecessary struct php_ctlrKenji Kaneshige2006-12-20
| | | | | | | | | | | | | | | | | | | | The struct php_ctlr seems to be only for complicating codes. This patch removes struct php_ctlr and related codes. 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>
* | PCI: ATI sb600 sata quirkConke Hu2006-12-20
| | | | | | | | | | | | | | | | Acked-by: Jeff Garzik <jeff@garzik.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI legacy resource fixRalf Baechle2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 368c73d4f689dae0807d0a2aa74c61fd2b9b075f the kernel will try to update the non-writeable BAR registers 0..3 of PIIX4 IDE adapters if pci_assign_unassigned_resources() is used to do full resource assignment of the bus. This fails because in the PIIX4 these BAR registers have implicitly assumed values and read back as zero; it used to work because the kernel used to just write zero to that register the read back value did match what was written. The fix is a new resource flag IORESOURCE_PCI_FIXED used to mark a resource as non-movable. This will also be useful to keep other import system resources from being moved around - for example system consoles on PCI busses. [akpm@osdl.org: cleanup] Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: Be a bit defensive in quirk_nvidia_ck804() so we don't risk ↵Jesper Juhl2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | dereferencing a NULL pdev. pci_get_slot() may return NULL if nothing was found. quirk_nvidia_ck804() does not check the value returned from pci_get_slot(), so it may end up causing a NULL pointer deref. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: Fix multiple problems with VIA hardwareAlan Cox2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is designed to fix: - Disk eating corruptor on KT7 after resume from RAM - VIA IRQ handling - VIA fixups for bus lockups after resume from RAM The core of this is to add a table of resume fixups run at resume time. We need to do this for a variety of boards and features, but particularly we need to do this to get various critical VIA fixups done on resume. The second part of the problem is to handle VIA IRQ number rules which are a bit odd and need special handling for PIC interrupts. Various patches broke various boxes and while this one may not be perfect (hopefully it is) it ensures the workaround is applied to the right devices only. From: Jean Delvare <khali@linux-fr.org> Now that PCI quirks are replayed on software resume, we can safely re-enable the Asus SMBus unhiding quirk even when software suspend support is enabled. [akpm@osdl.org: fix const warning] Signed-off-by: Alan Cox <alan@redhat.com> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: Use pci_find_ht_capability() in drivers/pci/quirks.cMichael Ellerman2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | Use pci_find_ht_capability() in drivers/pci/quirks.c. I'm pretty sure the logic is unchanged here, but someone please eye-ball it for me. I've changed the message to be a little shorter, it's now: PCI: Found (enabled|disabled) HT MSI mapping on xxxx:xx:xx.x Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: Use pci_find_ht_capability() in drivers/pci/htirq.cMichael Ellerman2006-12-20
| | | | | | | | | | | | | | | | Use pci_find_ht_capability() in drivers/pci/htirq.c Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: Add pci_find_ht_capability() for finding Hypertransport capabilitiesMichael Ellerman2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are already several places in the kernel that want to search a PCI device for a given Hypertransport capability. Although this is possible using pci_find_capability() etc., it makes sense to encapsulate that logic in a helper - pci_find_ht_capability(). To cater for searching exhaustively for a capability, we also provide pci_find_next_ht_capability(). We also need to cater for the fact that the HT capability fields may be either 3 or 5 bits wide. pci_find_ht_capability() deals with this for you, but callers using the #defines directly must handle that themselves. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: Create __pci_bus_find_cap_start() from __pci_bus_find_cap()Michael Ellerman2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | The current implementation of __pci_bus_find_cap() does two things, first it determines the start of the capability chain for the device, and then it trys to find the requested capability. Split these out, so that we can use the two parts independantly in a subsequent patch. Externally visible behaviour should be unchanged. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | pci: Introduce pci_find_presentAlan Cox2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This works like pci_dev_present but instead of returning boolean returns the matching pci_device_id entry. This makes it much more useful. Code bloat is basically nil as the old boolean function is rewritten in terms of the new one. This will be used by the updated VIA PCI quirks for one Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: pcieport-driver: remove invalid warning messageKenji Kaneshige2006-12-20
| | | | | | | | | | | | | | | | | | | | | | The following warning message should not be displayed for devices which don't use an interrupt pin. pcie_portdrv_probe->Dev[XXXX:XXXX] has invalid IRQ. Check vendor BIOS Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | rpaphp: compiler warning cleanupLinas Vepstas2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This janitorial patch removes the following annoying compile-time message: drivers/pci/hotplug/rpaphp_slot.c:57: warning: ignoring return value of sfs_create_file declared with attribute warn_unused_result It also fixes a typo, removes some misc crud. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Cc: John Rose <johnrose@us.ibm.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI quirks: remove redundant checkDavid Rientjes2006-12-20
| | | | | | | | | | | | | | | | | | | | Removes redundant check for dev->subordinate; if it is NULL, the function returns before the patch-affected code region. Signed-off-by: David Rientjes <rientjes@cs.washington.edu> Acked-by: Brice Goglin <brice@myri.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | PCI: use /sys/bus/pci/drivers/<driver>/new_id firstRussell King2006-12-20
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfortunately, the .../new_id feature does not work with the 8250_pci driver. The reason for this comes down to the way .../new_id is implemented. When PCI tries to match a driver to a device, it checks the modules static device ID tables _before_ checking the dynamic new_id tables. When a driver is capable of matching by ID, and falls back to matching by class (as 8250_pci does), this makes it absolutely impossible to specify a board by ID, and as such the correct driver_data value to use with it. Let's say you have a serial board with vendor 0x1234 and device 0x5678. It's class is set to PCI_CLASS_COMMUNICATION_SERIAL. On boot, this card is matched to the 8250_pci driver, which tries to probe it because it matched using the class entry. The driver finds that it is unable to automatically detect the correct settings to use, so it returns -ENODEV. You know that the information the driver needs is to match this card using a device_data value of '7'. So you echo 1234 5678 0 0 0 0 7 into new_id. The kernel attempts to re-bind 8250_pci to this device. However, because it scans the PCI driver tables, it _again_ matches the class entry which has the wrong device_data. It fails. End of story. You can't support the card without rebuilding the kernel (or writing a specific PCI probe module to support it.) So, can we make new_id override the driver-internal PCI ID tables? IOW, like this: From: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day2006-12-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Kconfig refactoring for better menu nestingDon Mullis2006-12-10
| | | | | | | | | | | | | | | Refactor Kconfig content to maximize nesting of menus by menuconfig and xconfig. Tested by simultaneously running `make xconfig` with and without patch, and comparing displays. Signed-off-by: Don Mullis <dwm@meer.net> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] struct path: convert pciJosef Sipek2006-12-08
| | | | | | Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'intx' of ↵Linus Torvalds2006-12-07
|\ | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6 * 'intx' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6: PCI MSI: always toggle legacy-INTx-enable bit upon MSI entry/exit
| * PCI MSI: always toggle legacy-INTx-enable bit upon MSI entry/exitJeff Garzik2006-12-07
| | | | | | | | | | | | | | | | The current code (prior to this change) would disable the PCI INTx legacy interrupt when enabling MSI... but only on PCI Express. We should do this for all MSI devices, for safety's sake. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | [PATCH] slab: remove kmem_cache_tChristoph Lameter2006-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] add numa node information to struct deviceChristoph Hellwig2006-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For node-aware skb allocations we need information about the node in struct net_device or struct device. Davem suggested to put it into struct device which this patch does. In particular: - struct device gets a new int numa_node member if CONFIG_NUMA is set - there are two new helpers, dev_to_node and set_dev_node to transparently deal with the non-numa case - for pci devices the node-info is set to the value we get from pcibus_to_node. Note that for some architectures pcibus_to_node doesn't work yet at the time we call it currently. This is harmless and will just mean skb allocations aren't node-local on this architectures until the implementation of pcibus_to_node on these architectures have been updated (There are patches for x86 and x86_64 floating around) [akpm@osdl.org: cleanup] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Christoph Lameter <clameter@engr.sgi.com> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | Merge branch 'master' of ↵David Howells2006-12-05
|\| | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/ata/libata-scsi.c include/linux/libata.h Futher merge of Linus's head and compilation fixups. Signed-Off-By: David Howells <dhowells@redhat.com>
| * [PATCH] severing module.h->sched.hAl Viro2006-12-04
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge branch 'master' of ↵David Howells2006-12-05
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/infiniband/core/iwcm.c drivers/net/chelsio/cxgb2.c drivers/net/wireless/bcm43xx/bcm43xx_main.c drivers/net/wireless/prism54/islpci_eth.c drivers/usb/core/hub.h drivers/usb/input/hid-core.c net/core/netpoll.c Fix up merge failures with Linus's head and fix new compilation failures. Signed-Off-By: David Howells <dhowells@redhat.com>
| * Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2006-12-01
| |\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (28 commits) PCI: make arch/i386/pci/common.c:pci_bf_sort static PCI: ibmphp_pci.c: fix NULL dereference pciehp: remove unnecessary pci_disable_msi pciehp: remove unnecessary free_irq PCI: rpaphp: change device tree examination PCI: Change memory allocation for acpiphp slots i2c-i801: SMBus patch for Intel ICH9 PCI: irq: irq and pci_ids patch for Intel ICH9 PCI: pci_{enable,disable}_device() nestable ports PCI: switch pci_{enable,disable}_device() to be nestable PCI: arch/i386/kernel/pci-dma.c: ioremap balanced with iounmap pci/i386: style cleanups PCI: Block on access to temporarily unavailable pci device pci: fix __pci_register_driver error handling pci: clear osc support flags if no _OSC method acpiphp: fix missing acpiphp_glue_exit() acpiphp: fix use of list_for_each macro Altix: Initial ACPI support - ROM shadowing. Altix: SN ACPI hotplug support. Altix: Add initial ACPI IO support ...
| | * PCI: ibmphp_pci.c: fix NULL dereferenceAdrian Bunk2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The correct order is: NULL check before dereference Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * pciehp: remove unnecessary pci_disable_msiKenji Kaneshige2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the problem that "irq XX: nobody cared" kernel oops is reported when pciehp is once rmmoded and insmoded again. The cause of this problem is pciehp driver calls pci_disable_msi() at controller release time, even though it must be done by PCI Express Port Bus driver. This patch removes unnecessary pci_disable_msi() call from pciehp driver. 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>
| | * pciehp: remove unnecessary free_irqKenji Kaneshige2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the problem that the following error messages is reported when pciehp driver is rmmoded. Trying to free already-free IRQ XX The cause of this problem is that pciehp driver is doing unknown 2nd free_irq at driver unloading. This patch removes this unknown 2nd free_irq call. Note: The pciehp driver should be adapted to standard device driver mode. 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>
| | * PCI: rpaphp: change device tree examinationJohn Rose2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change the criterion that RPA PCI Hotplug and RPA DLPAR use when determining the hotplug capabilities of a given device node. The "device_type" property is less consistent than "name" across PCI nodes on newer hardware. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * PCI: Change memory allocation for acpiphp slotsRolf Eike Beer2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Change memory allocation for acpiphp slots Change the "struct slot" that acpiphp uses for managing it's slots to directly contain the memory for the needed struct hotplug_slot_info and the slot's name. This way we need only two memory allocations per slot instead of four. While we are at it: make_slot_name() is just a wrapper around snprintf() knowing the right arguments to call it. Since the function makes just one function call and is only called from one place I inlined it by hand. Finally this fixes a possible bug waiting for someone to hit it. There were two unused local variables in acpiphp_register_hotplug_slot(). gcc did not find them because they were used in memory allocations with sizeof(*var). They had the same types as the target of the allocation, but nevertheless this was just weird. Signed-off-by: Rolf Eike Beer <eike-hotplug@sf-tec.de> Acked-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * PCI: switch pci_{enable,disable}_device() to be nestableInaky Perez-Gonzalez2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes the pci_{enable,disable}_device() functions to work in a nested basis, so that eg, three calls to enable_device() require three calls to disable_device(). The reason for this is to simplify PCI drivers for multi-interface/capability devices. These are devices that cram more than one interface in a single function. A relevant example of that is the Wireless [USB] Host Controller Interface (similar to EHCI) [see http://www.intel.com/technology/comms/wusb/whci.htm]. In these kind of devices, multiple interfaces are accessed through a single bar and IRQ line. For that, the drivers map only the smallest area of the bar to access their register banks and use shared IRQ handlers. However, because the order at which those drivers load cannot be known ahead of time, the sequence in which the calls to pci_enable_device() and pci_disable_device() cannot be predicted. Thus: 1. driverA starts pci_enable_device() 2. driverB starts pci_enable_device() 3. driverA shutdown pci_disable_device() 4. driverB shutdown pci_disable_device() between steps 3 and 4, driver B would loose access to it's device, even if it didn't intend to. By using this modification, the device won't be disabled until all the callers to enable() have called disable(). This is implemented by replacing 'struct pci_dev->is_enabled' from a bitfield to an atomic use count. Each caller to enable increments it, each caller to disable decrements it. When the count increments from 0 to 1, __pci_enable_device() is called to actually enable the device. When it drops to zero, pci_disable_device() actually does the disabling. We keep the backend __pci_enable_device() for pci_default_resume() to use and also change the sysfs method implementation, so that userspace enabling/disabling the device doesn't disable it one time too much. Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * PCI: Block on access to temporarily unavailable pci deviceMatthew Wilcox2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The existing implementation of pci_block_user_cfg_access() was recently criticised for providing out of date information and for returning errors on write, which applications won't be expecting. This reimplementation uses a global wait queue and a bit per device. I've open-coded prepare_to_wait() / finish_wait() as I could optimise it significantly by knowing that the pci_lock protected us at all points. It looked a bit funny to be doing a spin_unlock_irqsave(); schedule(), so I used spin_lock_irq() for the _user versions of pci_read_config and pci_write_config. Not carrying a flags pointer around made the code much less nasty. Attempts to block an already blocked device hit a BUG() and attempts to unblock an already unblocked device hit a WARN(). If we need to block access to a device from userspace, it's because it's unsafe for even another bit of the kernel to access the device. An attempt to block a device for a second time means we're about to access the device to perform some other operation, which could provoke undefined behaviour from the device. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Acked-by: Adam Belay <abelay@novell.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * pci: fix __pci_register_driver error handlingAkinobu Mita2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __pci_register_driver() error path forgot to unwind. driver_unregister() needs to be called when pci_create_newid_file() failed. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * pci: clear osc support flags if no _OSC methodKristen Carlson Accardi2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So it looks like pci aer code will call pci_osc_support_set to tell the firmware about OSC_EXT_PCI_CONFIG_SUPPORT flag. that causes ctrlset_buf[OSC_SUPPORT_TYPE] to evaluate to true when pciehp calls pci_osc_control_set() is called (to attempt to use OSC to gain native pcie control from firmware), regardless of whether or not _OSC was actually successfully executed. That causes this section of code: if (ctrlset_buf[OSC_SUPPORT_TYPE] && ((global_ctrlsets & ctrlset) != ctrlset)) { return AE_SUPPORT; } to be hit. This patch will reset the OSC_SUPPORT_TYPE field if _OSC fails, and then would allow pciehp to go ahead and try to run _OSC again. Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * acpiphp: fix missing acpiphp_glue_exit()Akinobu Mita2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acpiphp_glue_exit() needs to be called to unwind when no slots found. (It fixes data corruption when reloading acpiphp driver with no such devices) Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * acpiphp: fix use of list_for_each macroAkinobu Mita2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes invalid usage of list_for_each() list_for_each (node, &bridge_list) { bridge = (struct acpiphp_bridge *)node; ... } This code works while the member of list node is located at the head of struct acpiphp_bridge. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * Altix: Initial ACPI support - ROM shadowing.John Keller2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support a shadowed ROM when running with an ACPI capable PROM. Define a new dev.resource flag IORESOURCE_ROM_BIOS_COPY to describe the case of a BIOS shadowed ROM, which can then be used to avoid pci_map_rom() making an unneeded call to pci_enable_rom(). Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * Altix: SN ACPI hotplug support.John Keller2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A few minor changes to the way slot/device fixup is done. No need to be calling sn_pci_controller_fixup(), as a root bus cannot be hotplugged. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * PCI: Replace HAVE_ARCH_PCI_MWI with PCI_DISABLE_MWIMatthew Wilcox2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pSeries is the only architecture left using HAVE_ARCH_PCI_MWI and it's really inappropriate for its needs. It really wants to disable MWI altogether. So here are a pair of stub implementations for pci_set_mwi and pci_clear_mwi. Also rename pci_generic_prep_mwi to pci_set_cacheline_size since that better reflects what it does. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Cc: Paul Mackerras <paulus@samba.org> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * PCI: Use pci_generic_prep_mwi on sparc64Matthew Wilcox2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The setting of the CACHE_LINE_SIZE register in sparc64's pci initialisation code isn't quite adequate as the device may have incompatible requirements. The generic code tests for this, so switch sparc64 over to using it. Since sparc64 has different L1 cache line size and PCI cache line size, it would need to override the generic code like i386 and ia64 do. We know what the cache line size is at compile time though, so introduce a new optional constant PCI_CACHE_LINE_BYTES. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: David Miller <davem@davemloft.net> Acked-by: Jeff Garzik <jeff@garzik.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| | * PCI: quirks: fix the festering mess that claims to handle IDE quirksAlan Cox2006-12-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The number of permutations of crap we do is amazing and almost all of it has the wrong effect in 2.6. At the heart of this is the PCI SFF magic which says that compatibility mode PCI IDE controllers use ISA IRQ routing and hard coded addresses not the BAR values. The old quirks variously clears them, sets them, adjusts them and then IDE ignores the result. In order to drive all this garbage out and to do it portably we need to handle the SFF rules directly and properly. Because we know the device BAR 0-3 are not used in compatibility mode we load them with the values that are implied (and indeed which many controllers actually thoughtfully put there in this mode anyway). This removes special cases in the IDE layer and libata which now knows that bar 0/1/2/3 always contain the correct address. It means our resource allocation map is accurate from boot, not "mostly accurate" after ide is loaded, and it shoots lots of code. There is also lots more code and magic constant knowledge to shoot once this is in and settled. Been in my test tree for a while both with drivers/ide and with libata. Wants some -mm shakedown in case I've missed something dumb or there are corner cases lurking. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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