- 22 Jun, 2005 40 commits
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Ian Kent authored
Signed-off-by:
Ian Kent <raven@themaw.net> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Ian Kent authored
For browsable autofs maps, a mount request that arrives at the same time an expire is happening can fail to perform the needed mount. This happens becuase the directory exists and so the revalidate succeeds when we need it to fail so that lookup is called on the same dentry to do the mount. Instead lookup is called on the next path component which should be whithin the mount, but the parent isn't mounted. The solution is to allow the revalidate to continue and perform the mount as no directory creation (at mount time) is needed for browsable mount entries. Signed-off-by:
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Ian Kent authored
At the tail end of an expire it's possible for a process to enter autofs4_wait, with a waitq type of NFY_NONE but find that the expire is finished. In this cause autofs4_wait will try to create a new wait but not notify the daemon leading to a hang. As the wait type is meant to delay mount requests from revalidate or lookup during an expire and the expire is done all we need to do is check if the dentry is a mountpoint. If it's not then we're done. Signed-off-by:
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Ian Kent authored
While this is not a solution to bind and move mounts on autofs owned directories it is necessary to fix the trady error handling. At least it avoids the kernel panic I observed checking out bug #4589. Signed-off-by:
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Max Asbock authored
This patch fixes a race in the command reference counting logic by putting spinlocks around kobject_put() in the command_put function. - Also added debug messages. - Changed a memcpy to memcpy_fromio since we are reading from io space. Signed-off-by:
Max Asbock <masbock@us.ibm.com> Signed-off-by:
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Max Asbock authored
This patch rewrites the handling of remote control events. Rather than making them available from a special file in the ibmasmfs, now the events from the RSA card get translated into kernel input events and injected into the input subsystem. The driver now will generate two /dev/input/eventX nodes -- one for the keyboard and one for the mouse. The mouse node generates absolute events more like a touch pad than a mouse. Signed-off-by:
Vernon Mauery <vernux@us.ibm.com> Signed-off-by:
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Max Asbock authored
Due to my incomplete understanding of the wait_event_interruptible() function threads waiting for service processor events were not woken up. This patch fixes that problem. Signed-off-by:
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Max Asbock authored
First of a series of patches for the ibmasm driver. (that is the driver for the IBM xSeries RSA service processor) To summarize what they do: [1] change a #define for the buffer size for commands [2] Fix a bug where threads in the event handling code calling wait_event_interruptible() weren't woken up as expected. [3] Redesigned how remote mouse and keyboard events received by the driver are handled. [4] Fixed a race in the command reference counting logic. This patch: - change a #define for the buffer size for commands Signed-off-by: -
Heiko Carstens authored
Wait for interrupt and clear status pending after resetting the reader. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Heiko Carstens authored
The kernel takes a very long time to boot if the memory size is bigger then 32767 MB. The memory size is contained in a structure created by an sclp call. The kernel accesses the field with a LH instrution which performs a sign extension of a 16 bit word. In the case of a memory size with bit 2^15 set this results in a very large value and the memory detection just loops for a long time. In addition if more then 64 GB are used on a 64 bit system the memory size is read from an incorrect storage location. Use zero-extention to read the 16 bit memory size and the correct offset to read the 4 byte memory size on 64 bit. Signed-off-by:
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Heiko Carstens authored
Make cmm module parameter "sender" visible in sysfs. Signed-off-by:
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Heiko Carstens authored
die() doesn't return, therefore print registers and then panic instead. Signed-off-by:
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Martin Schwidefsky authored
Remove superflous #if .. #endif pairs from compat_ioctl.c. Signed-off-by:
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Cornelia Huck authored
Some clarifications in the cio documentation. Signed-off-by:
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Cornelia Huck authored
Fix max channel check in cio_ignore display function. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
With Al Viro <viro@parcelfarce.linux.theplanet.co.uk> To make sure switcheroo() can execute when we remap all the executable image, we used a trick to make it use a local copy of errno... this trick does not work with NPTL glibc, only with LinuxThreads, so use another (simpler) one to make it work anyway. Hopefully, a lot improved thanks to merging with the version of Al Viro (which had his part of problems, though, i.e. removing a fix to another bug and not fixing the problem on i386). Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
With Chris Wedgwood <cw@f00f.org> As suggested by Chris, we can make the "just added" method ->release conditional to UML only (better: to archs requesting it, i.e. only UML currently), so that other archs don't get this unneeded crud, and if UML won't need it any more we can kill this. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
This occurrence of free_irq_by_irq_and_dev() was missed when converting UML to the use of hw_controller_type->release. Signed-off-by:
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Paolo 'Blaisorblade' Giarrusso authored
With Chris Wedgwood <cw@f00f.org> Currently UML must explicitly call the UML-specific free_irq_by_irq_and_dev() for each free_irq call it's done. This is needed because ->shutdown and/or ->disable are only called when the last "action" for that irq is removed. Instead, for UML shared IRQs (UML IRQs are very often, if not always, shared), for each dev_id some setup is done, which must be cleared on the release of that fd. For instance, for each open console a new instance (i.e. new dev_id) of the same IRQ is requested(). Exactly, a fd is stored in an array (pollfds), which is after read by a host thread and passed to poll(). Each event registered by poll() triggers an interrupt. So, for each free_irq() we must remove the corresponding host fd from the table, which we do via this -release() method. In this patch we add an appropriate hook for this, and remove all uses of it by pointing the hook to the said procedure; this is safe to do since the said procedure. Also some cosmetic improvements are included. This is heavily based on some work by Chris Wedgwood, which however didn't get the patch merged for something I'd call a "misunderstanding" (the need for this patch wasn't cleanly explained, thus adding the generic hook was felt as undesirable). Signed-off-by:
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Hirokazu Takata authored
The current include/asm-m32r/div64.h of 2.6.12-rc5 looks buggy. Here is a patch for updating it to use asm-generic/div64.h for m32r like other architectures. Signed-off-by:
Hitoshi Yamamoto <hitoshiy@isl.melco.co.jp> Signed-off-by:
Hirokazu Takata <takata@linux-m32r.org> Signed-off-by:
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Hirokazu Takata authored
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Hirokazu Takata authored
This patch removes an obsolete header file include/asm-m32r/m32102peri.h. In this header, there are some undesirable single character types, like V. And the header is almost no longer used. Signed-off-by:
Hayato Fujiwara <fujiwara@linux-m32r.org> Signed-off-by:
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Hirokazu Takata authored
Signed-off-by:
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Hirokazu Takata authored
This patch is for the M32R CF/PCMCIA drivers to support a new platform, Mappi-III evaluation board. Signed-off-by:
Mamoru Sakugawa <sakugawa@linux-m32r.org> Signed-off-by:
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Hirokazu Takata authored
Change coding styles of hw_interrupt_type struct's initialization portions. Signed-off-by:
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Hirokazu Takata authored
This patchset is for supporting a new m32r platform, M3A-2170(Mappi-III) evaluation board. An M32R chip multiprocessor is equipped on the board. http://http://www.linux-m32r.org/eng/platform/platform.html * arch/m32r/Kconfig: Support Mappi-III platform. * arch/m32r/kernel/Makefile: ditto. * arch/m32r/kernel/io_mappi3.c: ditto. * arch/m32r/kernel/setup.c: ditto. * arch/m32r/kernel/setup_mappi3.c: ditto. * include/asm-m32r/m32102.h: ditto. * include/asm-m32r/m32r.h: ditto. * include/asm-m32r/mappi3/mappi3_pld.h: ditto. * include/asm-m32r/ide.h: CF support for Mappi-III. * arch/m32r/kernel/setup_mappi3.c: ditto. * arch/m32r/mappi3/defconfig.smp: A default config file for Mappi-III. * arch/m32r/mappi3/dot.gdbinit: A default .gdbinit file for Mappi-III. * arch/m32r/boot/compressed/m32r_sio.c: Modified for Mappi-III - At boot time, m32r-g00ff bootloader makes MMU off for Mappi-III, on the contrary it makes MMU on for Mappi-II. * arch/m32r/kernel/io_mappi2.c: Update comments. * arch/m32r/kernel/setup_mappi2.c: ditto. Signed-off-by:
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Brent Casavant authored
Several hardware features of SGI's IOC4 I/O controller chip require timing-related driver calculations dependent upon the PCI bus speed. This patch enables the core IOC4 driver code to detect the actual bus speed and store a value that can later be used by the IOC4 subdrivers as needed. Signed-off-by:
Brent Casavant <bcasavan@sgi.com> Acked-by:
Pat Gefre <pfg@sgi.com> Signed-off-by:
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Brent Casavant authored
The SGI IOC4 I/O controller chip drivers are currently all configured by CONFIG_BLK_DEV_SGIIOC4. This is undesirable as not all IOC4 hardware features are needed by all systems. This patch adds two configuration variables, CONFIG_SGI_IOC4 for core IOC4 driver support (see patch 1/3 in this series for further explanation) and CONFIG_SERIAL_SGI_IOC4 to independently enable serial port support. Signed-off-by:
Jeremy Higdon <jeremy@sgi.com> Signed-off-by:
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Brent Casavant authored
This series of patches reworks the configuration and internal structure of the SGI IOC4 I/O controller device drivers. These changes are motivated by several factors: - The IOC4 chip PCI resources are of mixed use between functions (i.e. multiple functions are handled in the same address range, sometimes within the same register), muddling resource ownership and initialization issues. Centralizing this ownership in a core driver is desirable. - The IOC4 chip implements multiple functions (serial, IDE, others not yet implemented in the mainline kernel) but is not a multifunction PCI device. In order to properly handle device addition and removal as well as module insertion and deletion, an intermediary IOC4-specific driver layer is needed to handle these operations cleanly. - All IOC4 drivers are currently enabled by a single CONFIG value. As not all systems need all IOC4 functions, it is desireable to enable these drivers independently. - The current IOC4 core driver will trigger loading of all function-level drivers, as it makes direct calls to them. This situation should be reversed (i.e. function-level drivers cause loading of core driver) in order to maintain a clear and least-surprise driver loading model. - IOC4 hardware design necessitates some driver-level dependency on the PCI bus clock speed. Current code assumes a 66MHz bus, but the speed should be autodetected and appropriate compensation taken. This patch series effects the above changes by a newly and better designed IOC4 core driver with which the function-level drivers can register and deregister themselves upon module insertion/removal. By tracking these modules, device addition/removal is also handled properly. PCI resource management and ownership issues are centralized in this core driver, and IOC4-wide configuration actions such as bus speed detection are also handled in this core driver. This patch: The SGI IOC4 I/O controller chip implements multiple functions, though it is not a multi-function PCI device. Additionally, various PCI resources of the IOC4 are shared by multiple hardware functions, and thus resource ownership by driver is not clearly delineated. Due to the current driver design, all core and subordinate drivers must be loaded, or none, which is undesirable if not all IOC4 hardware features are being used. This patch reorganizes the IOC4 drivers so that the core driver provides a subdriver registration service. Through appropriate callbacks the subdrivers can now handle device addition and removal, as well as module insertion and deletion (though the IOC4 IDE driver requires further work before module deletion will work). The core driver now takes care of allocating PCI resources and data which must be shared between subdrivers, to clearly delineate module ownership of these items. Signed-off-by:
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Yoichi Yuasa authored
Add vr41xx gpio support. Signed-off-by:
Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by:
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Anton Blanchard authored
Allow the SMT bit to be set/reset at boot, like the ALTIVEC bit. This means we will enable SMT on unknown cpus that support it. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Anton Blanchard authored
We dont use the hardware referenced and changed bits and setting them early avoids a store to memory. We already do this for userspace hptes but not kernel ones. Do it. Signed-off-by:
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Stephen Rothwell authored
Currently we dynamically allocate the fake parent device for all devices on the vio bus. This patch statically allocates it. This also allows us to reuse it for the iSeries "generic" vio device (that is used for passing to dma routines when communicating with the hypervisor without a device involved). Also unexport vio_bus_type as it is never used in modules. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Stephen Rothwell authored
This patch allows iSeries to build with CONFIG_PCI=n. This is useful for partitions that have only virtual I/O. Signed-off-by:
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Stephen Rothwell authored
This patch just removes some dead code, fixes messages that referred to the file this code used to be in and inserts XmPciLpEvent_init into its caller. Signed-off-by:
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Stephen Rothwell authored
This patch just merges XmPciLpEvent.c into iSeries_irq.c (the only caller of its only external function). XmPciLpEvent.c just contained the lowlevel iSeries irq code. Signed-off-by:
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Stephen Rothwell authored
This patch is just simple cleanups to the iSeries irq code. - whitespace and comments - rearrange some functions to avoid forward declarations - remove XmPciLpEvent.h as its functions were declared elsewhere - remove decaration of function that no longer exists No semantic changes. Signed-off-by:
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Stephen Rothwell authored
The AgentId, PhbId, FrameId, CardLocation and Location members of iSeries_Device_Node are stored early in the boot process just so that a message about the device can be printed later in the boot process. Remove them and construct the message by doing the VPD parsing at the time the message is printed. Also remove a few unused defines in iSeries_VpdInfo.c. Signed-off-by:
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Stephen Rothwell authored
The IoRetry member of iSeries_Devide_Node is really only used locally, so remove it and replace it with a local variable. Signed-off-by:
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Stephen Rothwell authored
Remove no longer used things from iSeries_pci.h. Signed-off-by:
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