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* [ARM SMP] Fix another ARMv6 bitop problemRussell King2005-07-28
| | | | | | | | We sometimes forgot to check whether the exclusive store succeeded. Ensure that we always check. Also ensure that we always use the out of line versions, since the inline versions are not SMP safe. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-07-26
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| * [PATCH] ARM: 2819/1: Fix several S3C24x0 IIS definesDimitry Andric2005-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Dimitry Andric - Change S3C2440_IISCON_MPLL to S3C2440_IISMOD_MPLL: The S3C2440 IISCON register doesn\'t control the master clock selection, this is done with the IISMOD register. - Correct S3C2410_IISMOD_256FS and S3C2410_IISMOD_384FS: This is set via bit 2 of IISMOD, not bit 1. - Add S3C2410_IISCON_PSCEN (prescaler enable), for completeness\' sake. Signed-off-by: Dimitry Andric <dimitry.andric@tomtom.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge master.kernel.org:/home/rmk/linux-2.6-arm-smpLinus Torvalds2005-07-26
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| * | [PATCH] ARM SMP: Add ARMv6 memory barriersRussell King2005-07-26
| | | | | | | | | | | | | | | | | | | | | | | | Convert explicit gcc asm-based memory barriers into smp_mb() calls. These change between barrier() and the ARMv6 data memory barrier instruction depending on whether ARMv6 SMP is enabled. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] ARM SMP: Use exclusive load/store for __xchgRussell King2005-07-26
| |/ | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* / [PATCH] Add emergency_restart()Eric W. Biederman2005-07-26
|/ | | | | | | | | | | | | | | | | | When the kernel is working well and we want to restart cleanly kernel_restart is the function to use. But in many instances the kernel wants to reboot when thing are expected to be working very badly such as from panic or a software watchdog handler. This patch adds the function emergency_restart() so that callers can be clear what semantics they expect when calling restart. emergency_restart() is expected to be callable from interrupt context and possibly reliable in even more trying circumstances. This is an initial generic implementation for all architectures. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ARM SMP: Fix ARMv6 spinlock and semaphore implementationsRussell King2005-07-24
| | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2687/1: i.MX framebuffer: make dmacr register platform configurableSascha Hauer2005-07-17
| | | | | | | | | | | | Patch from Sascha Hauer The dmacr needs different settings on some boards. This patch makes the register configurable by the platform part. Also we have imxfb_disable_controller(), so lets use it. Signed-off-by: Steven Scholz Signed-off-by: Sascha Hauer Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [PATCH] ARM: 2815/1: Shark: new defconfig, fixes with __io and serial portsAlexander Schulz2005-07-16
| | | | | | | | | | | | | | Patch from Alexander Schulz This patch brings a new default config file for the shark and fixes a compilation issue with io addressing and a runtime problem with the serial ports, where I corrected a wrong regshift value. These are all shark specific files so I hope it is ok to put them in one patch. Signed-off-by: Alexander Schulz <alex@shark-linux.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* Merge /home/torvalds/linux-2.6-armLinus Torvalds2005-07-13
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| * [PATCH] ARM SMP: Rename cpu_present_mask to cpu_possible_mapRussell King2005-07-11
| | | | | | | | | | | | | | The kernel's terminology for this is cpu_possible_map not cpu_present_mask. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ACPI] merge acpi-2.6.12 branch into latest Linux 2.6.13-rc...Len Brown2005-07-12
|\ \ | | | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| * | [ACPI] PNPACPI vs sound IRQDavid Shaohua Li2005-07-12
| | | | | | | | | | | | | | | | | | | | | | | | http://bugme.osdl.org/show_bug.cgi?id=4016 Written-by: David Shaohua Li <shaohua.li@intel.com> Acked-by: Adam Belay <abelay@novell.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/tglx/mtd-2.6Linus Torvalds2005-07-11
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| * | [MTD] XIP cleanupThomas Gleixner2005-07-07
| | | | | | | | | | | | | | | | | | Move the architecture dependend code into include/asm/mtd-xip.h Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | [PATCH] ARM: 2804/1: OMAP update 9/11: Update OMAP arch filesTony Lindgren2005-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Tony Lindgren This patch by various OMAP developers syncs the OMAP specific arch files with the linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2802/1: OMAP update 8/11: Update OMAP arch filesTony Lindgren2005-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Tony Lindgren This patch by various OMAP developers syncs the OMAP specific arch files with the linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2797/1: OMAP update 1/11: Update include filesTony Lindgren2005-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Tony Lindgren This patch by various OMAP developers syncs the OMAP specific include files with the linux-omap tree. Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2793/1: platform serial support for ixp2000Lennert Buytenhek2005-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek This patch converts the ixp2000 serial port over to a platform serial device. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2792/1: IXP4xx iomap API implementationDeepak Saxena2005-07-06
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Deepak Saxena This patch implements the iomap API for Intel IXP4xx NPU systems. We need to implement our own version of the API functions b/c of the PCI hostbridge does not provide the capability to map PCI I/O space into the CPU's physical memory space. In addition, if a system has more than 64M of PCI memory mapped BARs, PCI memory must also be accessed indirectly. This patch changes the assignment of PCI I/O resources to fall into to 0x0000:0xffff range so that we can trap I/O areas in our ioread/iowrite macros. Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: Fix new-ABI layout of struct stat64Russell King2005-07-04
| | | | | | | | | | | | | | Add __attribute__((packed)) to ensure that the stat64 structure is correctly laid out no matter which ABI the kernel is compiled for. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: Change 'param_offset' to 'boot_params'Russell King2005-07-04
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: Remove machine description macrosRussell King2005-07-03
| | | | | | | | | | | | | | Remove the pointless machine description macros, favouring C99 initialisers instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: 2782/1: PXA27x MDREFR K0DB4 defineTodd Poynor2005-07-01
| | | | | | | | | | | | | | | | | | | | Patch from Todd Poynor Add definition of K0DB4 SDCLK<0,3> divide-by-4 control/status bit in the MDREFR register for Intel XScale PXA27x. Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: 2781/2: PXA27x Standby mode take 2Todd Poynor2005-07-01
| | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Todd Poynor Add support for PXA27x Standby mode, a low-power mode that retains CPU and some peripheral state (the existing "sleep" mode is a power-power mode that retains less state). Activated via: echo -n standby > /sys/power/state From: David Burrage and Todd Poynor Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: Don't try to send a signal to pid0Russell King2005-06-30
| | | | | | | | | | | | | | | | | | If we receive an unrecognised abort during boot, don't try to send a signal to pid0, but instead report the current state. This leads to less confusing debug reports. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: 2768/1: PXA: Add a required header file for LL_DEBUGRichard Purdie2005-06-29
| | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie With DEBUG enabled, head.S includes arch/debug-macro.S. On the PXA, this contains references to the macro io_p2v() so hardware.h needs to be included. Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [PATCH] ARM: Convert ARM timer implementations to use readl/writelRussell King2005-06-29
| | | | | | | | | | | | | | | | | | | | | | | | Convert ARMs timer implementations to use readl/writel instead of accessing the registers via a struct. People have recently asked if accessing timers via a structure is the "right way" and its not the Linux way. So fix this code to conform to "The Linux Way"(tm). Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com>
* | Merge with ../linux-2.6-smpRussell King2005-06-29
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| * | [PATCH] ARM SMP: __xchg supportRussell King2005-06-28
| | | | | | | | | | | | | | | | | | This enables the existing __xchg implementation to be used on SMP. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [PATCH] ARM SMP: TLB implementations only affect local CPURussell King2005-06-28
| |\ \ | | | | | | | | | | | | | | | | | | | | | | | | The existing TLB flush implementations only have an effect on the local CPU. Prefix them with local_. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | \ \ Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2005-06-28
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| * | | | [PATCH] ARM: 2762/1: S3C24XX Audio platform dataBen Dooks2005-06-28
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Ben Dooks This provides the s3c24xx audio platform data which can be supplied from any of the board specific drivers. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6Greg KH2005-06-28
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| * | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds2005-06-27
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| | * | | [PATCH] USB: more omap_udc updates (dma and omap1710)David Brownell2005-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | More omap_udc updates: * OMAP 1710 updates - new UDC bit for clearing endpoint toggle, affecting CLEAR_HALT - new OTG bits affecting wakeup * Fix the bug Vladimir noted, that IN-DMA transfer code path kicks in for under 1024 bytes (not "up to 1024 bytes") * Handle transceiver setup more intelligently - use transceiver whenever one's available; this can be handy for GPIO based, loopback, or transceiverless configs - cleanup correctly after the "unrecognized HMC" case * DMA performance tweaks - allow burst/pack for memory access - use 16 bit DMA access most of the time on TIPB * Add workarounds for some DMA errata (not observed "in the wild"): - DMA CSAC/CDAC reads returning zero - RX/TX DMA config registers bit 12 always reads as zero (TI patch) * More "sparse" warnings removed, notably "changing" the SETUP packet to return data in USB byteorder (an API change, null effect on OMAP except for these warnings). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | [PATCH] ARM: 2759/1: Fix IXP4xx debug code (again)Deepak Saxena2005-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Deepak Saxena Accidently swapped the order of movne and orrne. Bad. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | [PATCH] ARM: 2758/1: Fix comment in file header to read "ARM" instead i386Michael Burian2005-06-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Michael Burian This does not look like an include file for "i386", so use "ARM" instead. Signed-off-by: Michael Burian <dynmail1@gassner-waagen.at> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | [PATCH] ARM: Fix speeling eroor in io.hRussell King2005-06-27
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | [PATCH] ARM: Add VST idle loop callRussell King2005-06-27
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | This call allows the dynamic tick support to reprogram the timer immediately before the CPU idles. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | [PATCH] PCI: fix up errors after dma bursting patch and CONFIG_PCI=nAndrew Morton2005-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With CONFIG_PCI=n: In file included from include/linux/pci.h:917, from lib/iomap.c:6: include/asm/pci.h:104: warning: `enum pci_dma_burst_strategy' declared inside parameter list include/asm/pci.h:104: warning: its scope is only this definition or declaration, which is probably not what you want. include/asm/pci.h: In function `pci_dma_burst_advice': include/asm/pci.h:106: dereferencing pointer to incomplete type include/asm/pci.h:106: `PCI_DMA_BURST_INFINITY' undeclared (first use in this function) include/asm/pci.h:106: (Each undeclared identifier is reported only once include/asm/pci.h:106: for each function it appears in.) make[1]: *** [lib/iomap.o] Error 1 Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | [PATCH] PCI: DMA bursting adviceDavid S. Miller2005-06-28
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After seeing, at best, "guesses" as to the following kind of information in several drivers, I decided that we really need a way for platforms to specifically give advice in this area for what works best with their PCI controller implementation. Basically, this new interface gives DMA bursting advice on PCI. There are three forms of the advice: 1) Burst as much as possible, it is not necessary to end bursts on some particular boundary for best performance. 2) Burst on some byte count multiple. A DMA burst to some multiple of number of bytes may be done, but it is important to end the burst on an exact multiple for best performance. The best example of this I am aware of are the PPC64 PCI controllers, where if you end a burst mid-cacheline then chip has to refetch the data and the IOMMU translations which hurts performance a lot. 3) Burst on a single byte count multiple. Bursts shall end exactly on the next multiple boundary for best performance. Sparc64 and Alpha's PCI controllers operate this way. They disconnect any device which tries to burst across a cacheline boundary. Actually, newer sparc64 PCI controllers do not have this behavior. That is why the "pdev" is passed into the interface, so I can add code later to check which PCI controller the system is using and give advice accordingly. Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | [PATCH] ARM: 2756/1: add ixp2000 msf mappingLennert Buytenhek2005-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Add a mapping for the ixp2400 and ixp2800 msf unit. The msf is the ixp2000's 'media and switch fabric' unit, which handles the networking part of the chip. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2755/1: describe ixp2000 virtual memory map layoutLennert Buytenhek2005-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Add a comment to asm/arch-ixp2000/ixp2000-regs.h describing the ixp2000 virtual memory map layout. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2754/1: move ixp2000 VMALLOC_END upLennert Buytenhek2005-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek As the ixdp cpld mappings now live at 0xfe000000, we can push VMALLOC_END upwards to 0xfb000000, where the first iotable mapping begins. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2753/1: move ixdp* cpld mappingsLennert Buytenhek2005-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek All ixdp platforms currently have a cpld mapped in at 0xfafff000. Since this address is not 1M-aligned, a regular page mapping will be used instead of a section mapping, which opens up the possibility of triggering ixp2400 erratum #66 as we only do the XCB=101 workaround thing for section mappings. There is still a lot of space higher up in the virtual memory map for 1M mappings, so move the cpld mapping to 0xfe000000 and make it 1M big so that a section mapping will be used for it. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] sched: cleanup context switch lockingNick Piggin2005-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of requiring architecture code to interact with the scheduler's locking implementation, provide a couple of defines that can be used by the architecture to request runqueue unlocked context switches, and ask for interrupts to be enabled over the context switch. Also replaces the "switch_lock" used by these architectures with an oncpu flag (note, not a potentially slow bitflag). This eliminates one bus locked memory operation when context switching, and simplifies the task_running function. Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | [PATCH] ARM: Generic Dynamic Tick Timer support for ARM, take 4Russell King2005-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for Dynamic Tick Timer for ARM. Dynamic Tick is also known as VST (Variable Scheduling Timeouts). Dynamic Tick has been in use in the OMAP tree since last October. The patch is not intrusive, and does not do anything unless CONFIG_NO_IDLE_HZ is defined. This patch has the following fixed based on comments from RMK: - Time is updated before calling interrupt handlers. - Added new interrupt flag SA_TIMER to avoid duplicate timer interrupts - Moved struct dyn_tick_timer to time.h until we at some point probably have an arch independent dyn-tick.h - Cleaned up testing for DYN_TICK_ENABLED in irq.c I've cleaned up this patch to fix some remaining issues: - Call the timer tick handler with irqs disabled, as it would be from a normal interrupt - if we have a dyn_tick, we better implement all methods. - generic timer_dyn_reprogram() call, to be called before sleeping - added command line option - "dyntick=" to allow boot-time control of this feature -- rmk Signed-off-by: Tony Lindgren Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | [PATCH] ARM: 2752/1: disable ixp2000 PCI I/O software workaround on chips ↵Lennert Buytenhek2005-06-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | that don't need it Patch from Lennert Buytenhek The later ixp2000 models don't need the PCI I/O workaround that we currently perform. Add a config option to disable the workaround, and panic on boot if a kernel without the workaround is booted on a buggy chip. As only pre-production ixp2000s need the workaround, the default is for it not to be configured in. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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