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* [ARM] Remove needless linux/ptrace.h includesRussell King2007-04-21
| | | | | | | | | Lots of places in arch/arm were needlessly including linux/ptrace.h, resumably because we used to pass a struct pt_regs to interrupt handlers. Now that we don't, all these ptrace.h includes are redundant. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: OMAP: Fix missing workqueue include in board-h2.cDirk Behme2007-03-07
| | | | | | | | | | | | ARM: OMAP: Fix missing #include <linux/workqueue.h> in board-h2.c resulting in In file included from arch/arm/mach-omap1/board-h2.c:40: include/asm/arch/irda.h:27: error: field 'gpio_expa' has incomplete type Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: omap1510->15xx conversions needed for sx1Vladimir Ananiev2007-03-02
| | | | | | | Convert 1510->15xx in generic omap code, so that sx1 can work. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: Add missing includes to board-nokia770Dirk Behme2007-03-02
| | | | | | | | Add missing includes to board-nokia770 to make it compile again. Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: board-nokia770: correct lcd nameArnaud Patard2007-03-02
| | | | | | | | | | | Some time ago, the 'lcd_lph8923' device was renamed to 'lcd_mipid' but the board-nokia770.c file was not updated accordingly, leading to not working lcd. This one-liner fixe the trouble. Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: Fix warning in mach-omap1Dirk Behme2007-03-02
| | | | | | | | | | | | Fix warning arch/arm/mach-omap1/pm.c: In function 'omap_pm_init': arch/arm/mach-omap1/pm.c:765: warning: ignoring return value of 'subsys_create_file', declared with attribute warn_unused_result Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: Fix CONFIG_DEBUG_LLDirk Behme2007-03-02
| | | | | | | | | | | | | | Fix broken CONFIG_DEBUG_LL. In case of low level debugging reconfigure some clocks early. See http://source.mvista.com/git/gitweb.cgi?p=linux-omap-2.6.git;a=commitdiff;h=3bfb289ccc6c4624fd5ff0381546935e105f4093 too. Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: OMAP310 SerialMarek Vašut2007-03-02
| | | | | | | | This makes serial usable also on omap310, not only 1510. (changing 1510->15xx) Signed-off-by: Marek Vašut <marek.vasut@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: Fix warning in clock.cDirk Behme2007-03-02
| | | | | | | | | | | | Fix warning: arch/arm/mach-omap1/clock.c: In function 'omap1_clk_enable_generic': arch/arm/mach-omap1/clock.c:499: warning: 'return' with no value, in function returning non-void Signed-off-by: Dirk Behme <dirk.behme_at_gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: correct misc 15xx and non-15xx platform codeAndrzej Zaborowski2007-03-02
| | | | | | | | | | | | | | | Disable accesses to SOFT_REQ_REG2 and ULPD_SOFT_DISABLE_REQ_REG registers for 15xx processors that don't have these registers. Enable level 2 interrupt handler for processors that identify as OMAP 15xx (e.g 310) and not 1510 specifically. Also fix the following compiler warning (only visible with CONFIG_OMAP_RESET_CLOCKS): arch/arm/mach-omap1/clock.c: In function 'omap1_clk_disable_unused': arch/arm/mach-omap1/clock.c:634: warning: 'return' with a value, in function returning void Signed-off-by: Andrzej Zaborowski <balrog@zabor.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
* [PATCH] another build fix, header rearrangements (OSK)David Brownell2006-12-13
| | | | | | | | | | Some of the header file rearrangements broke the build for board-osk. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: <tony@atomide.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix more workqueue build breakage (tps65010)David Brownell2006-12-13
| | | | | | | | | | | | | | | | | | More fixes to build breakage from the work_struct changes ... this updates the tps65010 driver. Plus, fix some dependencies related to the way it's used on the OMAP OSK: force static linking there, since the resulting kernel can't link. NOTE that until the i2c core gets fixed to work without SMBUS_QUICK, kernels needing this driver must still use "tps65010.force=0,0x48" on the command line. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Jean Delvare <khali@linux-fr.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-12-07
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (76 commits) [ARM] 4002/1: S3C24XX: leave parent IRQs unmasked [ARM] 4001/1: S3C24XX: shorten reboot time [ARM] 3983/2: remove unused argument to __bug() [ARM] 4000/1: Osiris: add third serial port in [ARM] 3999/1: RX3715: suspend to RAM support [ARM] 3998/1: VR1000: LED platform devices [ARM] 3995/1: iop13xx: add iop13xx support [ARM] 3968/1: iop13xx: add iop13xx_defconfig [ARM] Update mach-types [ARM] Allow gcc to optimise arm_add_memory a little more [ARM] 3991/1: i.MX/MX1 high resolution time source [ARM] 3990/1: i.MX/MX1 more precise PLL decode [ARM] 3986/1: H1940: suspend to RAM support [ARM] 3985/1: ixp4xx clocksource cleanup [ARM] 3984/1: ixp4xx/nslu2: Fix disk LED numbering (take 2) [ARM] 3994/1: ixp23xx: fix handling of pci master aborts [ARM] 3981/1: sched_clock for PXA2xx [ARM] 3980/1: extend the ARM Versatile sched_clock implementation from 32 to 63 bit [ARM] 3979/1: extend the SA11x0 sched_clock implementation from 32 to 63 bit period [ARM] 3978/1: macro to provide a 63-bit value from a 32-bit hardware counter ...
| * [ARM] Remove compatibility layer for ARM irqsRussell King2006-11-30
| | | | | | | | | | | | | | | | | | | | | | | | set_irq_chipdata -> set_irq_chip_data get_irq_chipdata -> get_irq_chip_data do_level_IRQ -> handle_level_irq do_edge_IRQ -> handle_edge_irq do_simple_IRQ -> handle_simple_irq irqdesc -> irq_desc irqchip -> irq_chip Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] add rtc-omap driverDavid Brownell2006-12-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This creates a new RTC-framework driver for the RTC/calendar module found in various OMAP1 chips. (OMAP2 and OMAP3 use external RTCs, like those in TI's multifunction PM companion chips.) It's been in the Linux-OMAP tree for several months now, and other trees before that, so it's quite stable. The most notable issue is that the OMAP IRQ code doesn't yet support the RTC IRQ as a wakeup event. Once that's fixed, a patch will be needed. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | WorkQueue: Fix up arch-specific work items where possibleDavid Howells2006-12-05
|/ | | | | | | | | | Fix up arch-specific work items where possible to use the new work_struct and delayed_work structs. Three places that enqueue bits of their stack and then return have been marked with #error as this is not permitted. Signed-Off-By: David Howells <dhowells@redhat.com>
* Initial blind fixup for arm for irq changesLinus Torvalds2006-10-06
| | | | | | | Untested, but this should fix up the bulk of the totally mechanical issues, and should make the actual detail fixing easier. Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* fix file specification in commentsUwe Zeisberger2006-10-03
| | | | | | | Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] OMAP: Update OMAP1/2 boards to give keymapsize and other pdataKomal Shah2006-09-29
| | | | | | | | | | | This patch adds keymapsize, delay and debounce flag in the keypad platform data for various TI OMAP1/2 based boards like F-sample, H2, H3, Innovator, Nokia770, OSK, Perseus and H4. Signed-off-by: Komal Shah <komal_shah802003@yahoo.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* ARM: OMAP: Sync clocks with linux-omap treeTony Lindgren2006-09-25
| | | | | | | Mostly clean up CONFIG_OMAP_RESET_CLOCKS. Also includes a patch from Imre Deak to make McSPI clocks use id. Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: mux: add config for 16xx SPI pinsMark Howell2006-09-25
| | | | | | | | | This patch adds pin mux info for the SPI master/slave interface on OMAP16xx. Data from OMAP 1611/1612 TRM and errata. Works for me on my 1611/H2 with current git kernel. Signed-off-by: Mark Howell <mhowell@northlink.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* [ARM] 3739/1: genirq updates: irq_chip, add and use irq_chip.nameDavid Brownell2006-08-01
| | | | | | | | | | | | | | | | | | | Patch from David Brownell ARM genirq cleanups/updates: - Start switching platforms to newer APIs * use "irq_chip" name, not "irqchip" * providing irq_chip.name - Show irq_chip.name in /proc/interrupts, like on x86. This update a bit more than half of the ARM code. The irq_chip.name values were chosen to match docs (if I have them) or be otherwise obvious ("FPGA", "CPLD", or matching the code). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: fixup irqflags breakage after ARM genirq mergeThomas Gleixner2006-07-02
| | | | | | | | | | The irgflags consolidation did conflict with the ARM to generic IRQ conversion and was not applied for ARM. Fix it up. Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'genirq' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-07-02
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'genirq' of master.kernel.org:/home/rmk/linux-2.6-arm: (24 commits) [ARM] 3683/2: ARM: Convert at91rm9200 to generic irq handling [ARM] 3682/2: ARM: Convert ixp4xx to generic irq handling [ARM] 3702/1: ARM: Convert ixp23xx to generic irq handling [ARM] 3701/1: ARM: Convert plat-omap to generic irq handling [ARM] 3700/1: ARM: Convert lh7a40x to generic irq handling [ARM] 3699/1: ARM: Convert s3c2410 to generic irq handling [ARM] 3698/1: ARM: Convert sa1100 to generic irq handling [ARM] 3697/1: ARM: Convert shark to generic irq handling [ARM] 3696/1: ARM: Convert clps711x to generic irq handling [ARM] 3694/1: ARM: Convert ecard driver to generic irq handling [ARM] 3693/1: ARM: Convert omap1 to generic irq handling [ARM] 3691/1: ARM: Convert imx to generic irq handling [ARM] 3688/1: ARM: Convert clps7500 to generic irq handling [ARM] 3687/1: ARM: Convert integrator to generic irq handling [ARM] 3685/1: ARM: Convert pxa to generic irq handling [ARM] 3684/1: ARM: Convert l7200 to generic irq handling [ARM] 3681/1: ARM: Convert ixp2000 to generic irq handling [ARM] 3680/1: ARM: Convert footbridge to generic irq handling [ARM] 3695/1: ARM drivers/pcmcia: Fixup includes [ARM] 3689/1: ARM drivers/input/touchscreen: Fixup includes ... Manual conflict resolved in kernel/irq/handle.c (butt-ugly ARM tickless code).
| * [ARM] 3693/1: ARM: Convert omap1 to generic irq handlingThomas Gleixner2006-07-01
| | | | | | | | | | | | | | | | | | | | | | | | Patch from Thomas Gleixner From: Thomas Gleixner <tglx@linutronix.de> Fixup the conversion to generic irq subsystem. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-07-02
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (44 commits) [ARM] 3541/2: workaround for PXA27x erratum E7 [ARM] nommu: provide a way for correct control register value selection [ARM] 3705/1: add supersection support to ioremap() [ARM] 3707/1: iwmmxt: use the generic thread notifier infrastructure [ARM] 3706/2: ep93xx: add cirrus logic edb9315a support [ARM] 3704/1: format IOP Kconfig with tabs, create more consistency [ARM] 3703/1: Add help description for ARCH_EP80219 [ARM] 3678/1: MMC: Make OMAP MMC work [ARM] 3677/1: OMAP: Update H2 defconfig [ARM] 3676/1: ARM: OMAP: Fix dmtimers and timer32k to compile on OMAP1 [ARM] Add section support to ioremap [ARM] Fix sa11x0 SDRAM selection [ARM] Set bit 4 on section mappings correctly depending on CPU [ARM] 3666/1: TRIZEPS4 [1/5] core ARM: OMAP: Multiplexing for 24xx GPMC wait pin monitoring ARM: OMAP: Fix SRAM to use MT_MEMORY instead of MT_DEVICE ARM: OMAP: Update dmtimers ARM: OMAP: Make clock variables static ARM: OMAP: Fix GPMC compilation when DEBUG is defined ARM: OMAP: Mux updates for external DMA and GPIO ...
| * ARM: OMAP: Add bitbank SPI driver for Innovator 1510 touchscreenDavid Brownell2006-06-26
| | | | | | | | | | | | | | | | Add bitbang SPI driver for Innovator 1510 touchscreen, using the new framework. Compile-tested only. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * ARM: OMAP: Aic23 alsa platform driver code for board-innovatorlamikr2006-06-26
| | | | | | | | | | | | | | | | Add platform driver init-code required by the aic23-alsa driver to omap-innovator. Signed-off-by: Mika Laitio <lamikr@cc.jyu.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * ARM: OMAP: Mistral ads7846 pendown stateDavid Brownell2006-06-26
| | | | | | | | | | | | | | | | Syncing the ads7846 code with mainstream means that the Mistral support needs to include a callback to read the pendown state. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * ARM: OMAP: Add core fsample supportBrian Swetland2006-06-26
| | | | | | | | | | | | | | This patch adds core support for the TI F-Sample Board (OMAP 850). Signed-off-by: Brian Swetland <swetland@google.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * ARM: OMAP: Readd Amstrad Delta USB supportJonathan McDowell2006-06-26
| | | | | | | | | | | | | | | | | | One of the recent merges from mainline removed the Amstrad Delta USB support. This patch adds it back in; it's the same as was in 2.6.16-omap2. Signed-off-by: Jonathan McDowell <noodles@earth.li> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * ARM: OMAP: Mistral board updates (spi, ...)David Brownell2006-06-26
| | | | | | | | | | | | | | | | | | | | This adds the OSK/Mistral specific glue for the omap_uwire driver and its ADS 7846 touchscreen. It also moves the lcd and keypad setup so it's grouped with the other Mistral-specific setup code, and provides comments about which switch maps to which reported key. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
|/ | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] leds: Amstrad Delta LED supportJonathan McDowell2006-06-23
| | | | | | | | | | | | Use the new LED infrastructure to support the 6 LEDs present on the Amstrad Delta. [akpm@osdl.org: cleanup] Signed-off-by: Jonathan McDowell <noodles@earth.li> Ackde-by: Richard Purdie <rpurdie@rpsys.net> Cc: Ben Dooks <ben@fluff.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3460/1: ARM: OMAP: Remove unnecessary nop_release()Tony Lindgren2006-04-09
| | | | | | | | | Patch from Tony Lindgren Remove unnecessary omap_nop_release() as noted by RMK. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3433/1: ARM: OMAP: 8/8 Update board filesTony Lindgren2006-04-02
| | | | | | | | | | | | | | | Patch from Tony Lindgren This patch syncs OMAP board support with linux-omap tree. The highlights of the patch are: - Add support for Nokia 770 by Juha Yrjola - Add support for Samsung Apollon by Kyungmin Park - Add support for Amstrad E3 videophone by Jonathan McDowell - Remove board-netstar.c board support as requested by Ladislav Michl - Do platform_device registration in board files by Komal Shah et al. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3455/1: ARM: OMAP: 7/8 Misc updates, take 2Tony Lindgren2006-04-02
| | | | | | | | | | | | | Patch from Tony Lindgren Update misc OMAP core code from linux-omap tree: - McBSP updates by Samuel Ortiz, Andrzej Zaborowski - Whitespace cleanups by Ladislav Michl - Other fixes by various linux-omap developers Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3430/1: ARM: OMAP: 5/8 Update PMTony Lindgren2006-04-02
| | | | | | | | | | | | | | | | Patch from Tony Lindgren Update OMAP PM code from linux-omap tree: - Move PM code from plat-omap to mach-omap1 and mach-omap2 by Tony Lindgren - Add minimal PM support for omap24xx by Tony Lindgren and Richard Woodruff - Misc updates to omap1 PM code by Tuukka Tikkanen et al - Updates to the SRAM code needed for PM and FB by Imre Deak Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3428/1: ARM: OMAP: 3/8 Update pin multiplexingTony Lindgren2006-04-02
| | | | | | | | | | | Patch from Tony Lindgren Update OMAP pin multiplexing code from linux-omap tree. This patch adds new pin configurations by various OMAP developers, and suport for omap730 by Brian Swetland. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3427/1: ARM: OMAP: 2/8 Update timersTony Lindgren2006-04-02
| | | | | | | | | | | | | | Patch from Tony Lindgren Update OMAP timers from linux-omap tree. The highlights of the patch are: - Move timer32k code from mach-omap1 to plat-omap and make it work also on omap24xx by Tony Lindgren - Add support for dmtimer idle check for PM by Tuukka Tikkanen Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3426/1: ARM: OMAP: 1/8 Update clock frameworkTony Lindgren2006-04-02
| | | | | | | | | | | | | | | Patch from Tony Lindgren Update OMAP clock framework from linux-omap tree. The highlights of the patch are: - Add support for omap730 clocks by Andrzej Zaborowski - Fix compile warnings by Dirk Behme - Add support for using dev id by Tony Lindgren and Komal Shah - Move memory timings and PRCM into separate files by Tony Lindgren Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] Notifier chain update: API changesAlan Stern2006-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The kernel's implementation of notifier chains is unsafe. There is no protection against entries being added to or removed from a chain while the chain is in use. The issues were discussed in this thread: http://marc.theaimsgroup.com/?l=linux-kernel&m=113018709002036&w=2 We noticed that notifier chains in the kernel fall into two basic usage classes: "Blocking" chains are always called from a process context and the callout routines are allowed to sleep; "Atomic" chains can be called from an atomic context and the callout routines are not allowed to sleep. We decided to codify this distinction and make it part of the API. Therefore this set of patches introduces three new, parallel APIs: one for blocking notifiers, one for atomic notifiers, and one for "raw" notifiers (which is really just the old API under a new name). New kinds of data structures are used for the heads of the chains, and new routines are defined for registration, unregistration, and calling a chain. The three APIs are explained in include/linux/notifier.h and their implementation is in kernel/sys.c. With atomic and blocking chains, the implementation guarantees that the chain links will not be corrupted and that chain callers will not get messed up by entries being added or removed. For raw chains the implementation provides no guarantees at all; users of this API must provide their own protections. (The idea was that situations may come up where the assumptions of the atomic and blocking APIs are not appropriate, so it should be possible for users to handle these things in their own way.) There are some limitations, which should not be too hard to live with. For atomic/blocking chains, registration and unregistration must always be done in a process context since the chain is protected by a mutex/rwsem. Also, a callout routine for a non-raw chain must not try to register or unregister entries on its own chain. (This did happen in a couple of places and the code had to be changed to avoid it.) Since atomic chains may be called from within an NMI handler, they cannot use spinlocks for synchronization. Instead we use RCU. The overhead falls almost entirely in the unregister routine, which is okay since unregistration is much less frequent that calling a chain. Here is the list of chains that we adjusted and their classifications. None of them use the raw API, so for the moment it is only a placeholder. ATOMIC CHAINS ------------- arch/i386/kernel/traps.c: i386die_chain arch/ia64/kernel/traps.c: ia64die_chain arch/powerpc/kernel/traps.c: powerpc_die_chain arch/sparc64/kernel/traps.c: sparc64die_chain arch/x86_64/kernel/traps.c: die_chain drivers/char/ipmi/ipmi_si_intf.c: xaction_notifier_list kernel/panic.c: panic_notifier_list kernel/profile.c: task_free_notifier net/bluetooth/hci_core.c: hci_notifier net/ipv4/netfilter/ip_conntrack_core.c: ip_conntrack_chain net/ipv4/netfilter/ip_conntrack_core.c: ip_conntrack_expect_chain net/ipv6/addrconf.c: inet6addr_chain net/netfilter/nf_conntrack_core.c: nf_conntrack_chain net/netfilter/nf_conntrack_core.c: nf_conntrack_expect_chain net/netlink/af_netlink.c: netlink_chain BLOCKING CHAINS --------------- arch/powerpc/platforms/pseries/reconfig.c: pSeries_reconfig_chain arch/s390/kernel/process.c: idle_chain arch/x86_64/kernel/process.c idle_notifier drivers/base/memory.c: memory_chain drivers/cpufreq/cpufreq.c cpufreq_policy_notifier_list drivers/cpufreq/cpufreq.c cpufreq_transition_notifier_list drivers/macintosh/adb.c: adb_client_list drivers/macintosh/via-pmu.c sleep_notifier_list drivers/macintosh/via-pmu68k.c sleep_notifier_list drivers/macintosh/windfarm_core.c wf_client_list drivers/usb/core/notify.c usb_notifier_list drivers/video/fbmem.c fb_notifier_list kernel/cpu.c cpu_chain kernel/module.c module_notify_list kernel/profile.c munmap_notifier kernel/profile.c task_exit_notifier kernel/sys.c reboot_notifier_list net/core/dev.c netdev_chain net/decnet/dn_dev.c: dnaddr_chain net/ipv4/devinet.c: inetaddr_chain It's possible that some of these classifications are wrong. If they are, please let us know or submit a patch to fix them. Note that any chain that gets called very frequently should be atomic, because the rwsem read-locking used for blocking chains is very likely to incur cache misses on SMP systems. (However, if the chain's callout routines may sleep then the chain cannot be atomic.) The patch set was written by Alan Stern and Chandra Seetharaman, incorporating material written by Keith Owens and suggestions from Paul McKenney and Andrew Morton. [jes@sgi.com: restructure the notifier chain initialization macros] Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] 3280/1: OMAP: 2/3 Fix low-level io init for omap1 boardsTony Lindgren2006-02-08
| | | | | | | | | Patch from Tony Lindgren This patch fixes the low-level IO init for omap1 boards. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3279/1: OMAP: 1/3 Fix low-level io initTony Lindgren2006-02-08
| | | | | | | | | | | | Patch from Tony Lindgren This patch adds the missing cache flushes to common low-level init that are needed to access the IO region. These flushes are normally done at the end of devicemaps_init(), but we need to detect the OMAP core type early. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* ARM: OMAP: 4/4 Fix clock framework to use clk_enable/disable miscTony Lindgren2006-01-17
| | | | | | | This patch fixes OMAP clock framework to use clk_enable/disable instead of clk_use/unuse as specified in include/linux/clk.h. Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: OMAP: 2/4 Fix clock framework to use clk_enable/disable for omap1Tony Lindgren2006-01-17
| | | | | | | This patch fixes OMAP clock framework to use clk_enable/disable instead of clk_use/unuse as specified in include/linux/clk.h. Signed-off-by: Tony Lindgren <tony@atomide.com>
* [ARM] 3260/1: remove phys_ram from struct machine_desc (part 2)Nicolas Pitre2006-01-13
| | | | | | | | | | | | Patch from Nicolas Pitre This field is redundent since it must be equal to PHYS_OFFSET anyway. Now that no code uses it anymore, mark it deprecated and remove all initializations from the tree. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* spelling: s/trough/through/Adrian Bunk2006-01-09
| | | | | | Additionally, one comment was reformulated by Joe Perches <joe@perches.com>. Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] IRQ type flagsRussell King2006-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some ARM platforms have the ability to program the interrupt controller to detect various interrupt edges and/or levels. For some platforms, this is critical to setup correctly, particularly those which the setting is dependent on the device. Currently, ARM drivers do (eg) the following: err = request_irq(irq, ...); set_irq_type(irq, IRQT_RISING); However, if the interrupt has previously been programmed to be level sensitive (for whatever reason) then this will cause an interrupt storm. Hence, if we combine set_irq_type() with request_irq(), we can then safely set the type prior to unmasking the interrupt. The unfortunate problem is that in order to support this, these flags need to be visible outside of the ARM architecture - drivers such as smc91x need these flags and they're cross-architecture. Finally, the SA_TRIGGER_* flag passed to request_irq() should reflect the property that the device would like. The IRQ controller code should do its best to select the most appropriate supported mode. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [ARM] Move asm/hardware/clock.h to linux/clk.hRussell King2006-01-07
| | | | | | | This is needs to be visible to other architectures using the AMBA bus and peripherals. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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