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| | * | [ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.cRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is no reason to have power control in a separate file from the board setup code. Merge it back into the board setup file, removing superfluous header includes and removing superfluous constants from the machine header file. -- Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4806/1: ixp4xx: Ethernet support for the nslu2 and nas100d boardsRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enables the new ixp4xx qmgr and npe drivers in ixp4xx_defconfig. Sets up the corresponding platform data for the nslu2 and nas100d boards, and reads the ethernet MAC address from the internal flash. Tested on both little-endian and big-endian kernels. Tested-by: Tom King <tom@websb.net> Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Michael Westerhof <mwester@dls.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4805/1: ixp4xx: Use leds-gpio driver instead of IXP4XX-GPIO-LED driverRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are the only three boards to use the IXP4XX-GPIO-LED driver, and they can all use the new leds-gpio driver instead with no change in functionality. -- Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4715/2: Ethernet support for IXDP425 boardsRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds IXDP425 platform support for two built-in 10/100 Ethernet ports. This patch will do nothing until the actual Ethernet driver is also included. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4714/2: Headers for IXP4xx built-in Ethernet and WAN driversKrzysztof Halasa2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds platform structs and #defines required by drivers for IXP4xx built-in Ethernet and WAN (sync serial) ports. The actual drivers will reside in drivers/net/arm and drivers/net/wan and will be submitted separately. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4713/3: Adds drivers for IXP4xx QMgr and NPE featuresKrzysztof Halasa2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds drivers for IXP4xx hardware Queue Manager and for Network Processor Engines. Requires patch #4712 (reading/writing CPU feature (aka fuse) bits). Posted to linux-arm-kernel on 2 Dec 2007 and revised. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4712/2: Adds functions to read and write IXP4xx "feature" bitsKrzysztof Halasa2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds functions to read and write IXP4xx "feature" (aka "fuse") bits, containing information about available/enabled CPU features. The uncompress.h included by boot/compressed/misc.c resides in a different space than rest of the kernel and thus can't use asm/hardware.h (including asm/arch/cpu.h - which, in turn, may use EXPORTed symbol "processor_id"). Posted to linux-arm-kernel on 2 Dec 2007 and revised. Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4774/2: ixp4xx: Register dsmg600 rtc i2c_board_infoRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register the i2c board info related to the RTC chip on the dsmg600 board to allow it to be found automatically on boot. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4773/2: ixp4xx: Register nas100d rtc i2c_board_infoRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register the i2c board info related to the RTC chip on the nas100d board to allow it to be found automatically on boot. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4772/2: ixp4xx: Register nslu2 rtc i2c_board_infoRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Register the i2c board info related to the RTC chip on the nslu2 board to allow it to be found automatically on boot. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4769/2: ixp4xx: Button updates for the dsmg600 boardRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Remove the superfluous declaration of ctrl_alt_del(). * Convert GPIO and IRQ handling to use the <asm/gpio.h> api. * Perform the reset on the release of the power button, so that NAS devices which have been set to auto-power-on (by solder bridging the power button) do not continuously power cycle. * Remove all superflous constants from dsmg600.h Signed-off-by: Rod Whitby <rod@whitby.id.au> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4768/2: ixp4xx: Button and LED updates for the nas100d boardRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Convert GPIO and IRQ handling to use the <asm/gpio.h> api. * Perform the reset only after the power button has been held down for at least two seconds. Do the reset on the release of the power button, so that NAS devices which have been set to auto-power-on (by solder bridging the power button) do not continuously power cycle. * Remove all superflous constants from nas100d.h * Add LED constants to nas100d.h while we're there. * Update the board LED setup code to use those constants. Signed-off-by: Rod Whitby <rod@whitby.id.au> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4767/2: ixp4xx: Add bitops.h include to io.hRod Whitby2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add include of <linux/bitops.h> to io.h to solve compilations errors in files such as drivers/w1/w1_io.c caused by the ixp4xx version of io.h using the BIT() macro without including <linux/bitops.h> first. Signed-off-by: Rod Whitby <rod@whitby.id.au> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | [ARM] 4766/2: ixp4xx: Update ixp4xx_defconfig, enabling all supported boardsRod Whitby2008-02-04
| | |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the defconfig for the ixp4xx machine in arch/arm/config taking all the defaults, with the following additions: 1) Enable support for the nslu2, loft, gateway7001, wg302v2, dsmg600, and gtwx5715 boards. 2) Enable EABI, OABI, HOTPLUG and FW_LOADER. 3) Enable the RTC subsystem, with drivers for the RTC chips on the nslu2 (x1205) and nas100d/dsmg600 (pcf8563) boards. 4) Enable the LEDS subsystem to support the nslu2, nas100d and dsmg600 boards. Enable the ixp4xx beeper driver. 5) Enable the USB subsystem, USB host driver support and USB mass storage support (required for boot disk on nslu2 board). 6) Enable the ATA subsystem, with drivers for the nas100d/dsmg600 (pata_artop) and avila (ixp4xx_cf) boards. Signed-off-by: Rod Whitby <rod@whitby.id.au> Acked-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 4802/1: Fix typo and remove vague commentMarc Pignat2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | Fix typo and remove vague comment Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Acked-by: Andrew Victor <linux@maxim.org.za> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 4660/3: at91: allow selecting UART for early kernel messagesGuennadi Liakhovetski2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently early kernel messages, i.e., those from uncompression, go to the debugging UART. And if it is enabled in the platform configuration, but not initialized by the bootloader, the machine hangs, waiting for UART status change. Besides, having those messages on another UART - typically the console UART - may be preferrable. This patch allows selecting the UART in kernel configuration. Signed-off-by: Guennadi Liakhovetski <lg@denx.de> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 4739/1: at91sam9263: make gpio bank C and D irqs workDavid Brownell2008-02-04
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On the at91sam9263, IRQs for GPIO banks C and D don't currently work. This is because banks C, D, and E share one clock and toplevel IRQ, but the AT91 code setting up and handling GPIO IRQs expects no sharing. This patch: - Fixes GPIO IRQ setup and handling to cope with GPIO banks that are shared like on sam9263 chips, by setting up a list of those banks and making the IRQ dispatching logic scan that list. - Precomputes the address of each bank's registers, saving it with other per-bank data so that it no longer needs to be constantly recomputed during IRQs and other GPIO operations. That shrinks hot-path code, while helping the GPIO bank irq updates. - Fixes a minor bug where IRQ_TYPE_NONE was wrongly rejected (it just means "use the default", which is "both edges" here). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge branch 'slub-linus' of ↵Linus Torvalds2008-02-04
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm * 'slub-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm: Explain kmem_cache_cpu fields SLUB: Do not upset lockdep SLUB: Fix coding style violations Add parameter to add_partial to avoid having two functions SLUB: rename defrag to remote_node_defrag_ratio Move count_partial before kmem_cache_shrink SLUB: Fix sysfs refcounting slub: fix shadowed variable sparse warnings
| * | Explain kmem_cache_cpu fieldsChristoph Lameter2008-02-04
| | | | | | | | | | | | | | | | | | | | | Add some comments explaining the fields of the kmem_cache_cpu structure. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * | SLUB: Do not upset lockdeproot2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | inconsistent {softirq-on-W} -> {in-softirq-W} usage. swapper/0 [HC0[0]:SC1[1]:HE0:SE0] takes: (&n->list_lock){-+..}, at: [<ffffffff802935c1>] add_partial+0x31/0xa0 {softirq-on-W} state was registered at: [<ffffffff80259fb8>] __lock_acquire+0x3e8/0x1140 [<ffffffff80259838>] debug_check_no_locks_freed+0x188/0x1a0 [<ffffffff8025ad65>] lock_acquire+0x55/0x70 [<ffffffff802935c1>] add_partial+0x31/0xa0 [<ffffffff805c76de>] _spin_lock+0x1e/0x30 [<ffffffff802935c1>] add_partial+0x31/0xa0 [<ffffffff80296f9c>] kmem_cache_open+0x1cc/0x330 [<ffffffff805c7984>] _spin_unlock_irq+0x24/0x30 [<ffffffff802974f4>] create_kmalloc_cache+0x64/0xf0 [<ffffffff80295640>] init_alloc_cpu_cpu+0x70/0x90 [<ffffffff8080ada5>] kmem_cache_init+0x65/0x1d0 [<ffffffff807f1b4e>] start_kernel+0x23e/0x350 [<ffffffff807f112d>] _sinittext+0x12d/0x140 [<ffffffffffffffff>] 0xffffffffffffffff This change isn't really necessary for correctness, but it prevents lockdep from getting upset and then disabling itself. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Christoph Lameter <clameter@sgi.com> Cc: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Christoph Lameter <clameter@sgi.com>
| * | SLUB: Fix coding style violationsPekka Enberg2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes most of the obvious coding style violations in mm/slub.c as reported by checkpatch. Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Christoph Lameter <clameter@sgi.com>
| * | Add parameter to add_partial to avoid having two functionsChristoph Lameter2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a parameter to add_partial instead of having separate functions. The parameter allows a more detailed control of where the slab pages is placed in the partial queues. If we put slabs back to the front then they are likely immediately used for allocations. If they are put at the end then we can maximize the time that the partial slabs spent without being subject to allocations. When deactivating slab we can put the slabs that had remote objects freed (we can see that because objects were put on the freelist that requires locks) to them at the end of the list so that the cachelines of remote processors can cool down. Slabs that had objects from the local cpu freed to them (objects exist in the lockless freelist) are put in the front of the list to be reused ASAP in order to exploit the cache hot state of the local cpu. Patch seems to slightly improve tbench speed (1-2%). Signed-off-by: Christoph Lameter <clameter@sgi.com> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * | SLUB: rename defrag to remote_node_defrag_ratioChristoph Lameter2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The NUMA defrag works by allocating objects from partial slabs on remote nodes. Rename it to remote_node_defrag_ratio to be clear about this. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * | Move count_partial before kmem_cache_shrinkChristoph Lameter2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | Move the counting function for objects in partial slabs so that it is placed before kmem_cache_shrink. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| * | SLUB: Fix sysfs refcountingChristoph Lameter2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If CONFIG_SYSFS is set then free the kmem_cache structure when sysfs tells us its okay. Otherwise there is the danger (as pointed out by Al Viro) that sysfs thinks the kobject still exists after kmem_cache_destroy() removed it. Signed-off-by: Christoph Lameter <clameter@sgi.com> Reviewed-by: Pekka J Enberg <penberg@cs.helsinki.fi>
| * | slub: fix shadowed variable sparse warningsHarvey Harrison2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce 'len' at outer level: mm/slub.c:3406:26: warning: symbol 'n' shadows an earlier one mm/slub.c:3393:6: originally declared here No need to declare new node: mm/slub.c:3501:7: warning: symbol 'node' shadows an earlier one mm/slub.c:3491:6: originally declared here No need to declare new x: mm/slub.c:3513:9: warning: symbol 'x' shadows an earlier one mm/slub.c:3492:6: originally declared here Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Christoph Lameter <clameter@sgi.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds2008-02-04
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (78 commits) x86: fix RTC lockdep warning: potential hardirq recursion x86: cpa, micro-optimization x86: cpa, clean up code flow x86: cpa, eliminate CPA_ enum x86: cpa, cleanups x86: implement gbpages support in change_page_attr() x86: support gbpages in pagetable dump x86: add gbpages support to lookup_address x86: add pgtable accessor functions for gbpages x86: add PUD_PAGE_SIZE x86: add feature macros for the gbpages cpuid bit x86: switch direct mapping setup over to set_pte x86: fix page-present check in cpa_flush_range x86: remove cpa warning x86: remove now unused clear_kernel_mapping x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping() x86: cpa selftest, skip non present entries x86: CPA fix pagetable split x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE x86: cpa, fix lookup_address ...
| * | | x86: fix RTC lockdep warning: potential hardirq recursionAndrew Morton2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After disabling both CONFIG_DEBUG_LOCKING_API_SELFTESTS and netconsole (using current mainline) I get a login prompt, and also... [ 5.181668] SELinux: policy loaded with handle_unknown=deny [ 5.183315] type=1403 audit(1202100038.157:3): policy loaded auid=4294967295 ses=4294967295 [ 5.822073] SELinux: initialized (dev usbfs, type usbfs), uses genfs_contexts [ 7.819146] ------------[ cut here ]------------ [ 7.819146] WARNING: at kernel/lockdep.c:2033 trace_hardirqs_on+0x9b/0x10d() [ 7.819146] Modules linked in: generic ext3 jbd ide_disk ide_core [ 7.819146] Pid: 399, comm: hwclock Not tainted 2.6.24 #4 [ 7.819146] [<c011d140>] warn_on_slowpath+0x41/0x51 [ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56 [ 7.819146] [<c013770c>] ? check_usage_forwards+0x19/0x3b [ 7.819146] [<c01390c4>] ? __lock_acquire+0xac3/0xb0b [ 7.819146] [<c0108c98>] ? native_sched_clock+0x8b/0x9f [ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56 [ 7.819146] [<c030ca6c>] ? _spin_unlock_irq+0x22/0x42 [ 7.819146] [<c013848b>] trace_hardirqs_on+0x9b/0x10d [ 7.819146] [<c030ca6c>] _spin_unlock_irq+0x22/0x42 [ 7.819146] [<c011481e>] hpet_rtc_interrupt+0xdf/0x290 [ 7.819146] [<c014ea90>] handle_IRQ_event+0x1a/0x46 [ 7.819146] [<c014f8ea>] handle_edge_irq+0xbe/0xff [ 7.819146] [<c0106e08>] do_IRQ+0x6d/0x84 [ 7.819146] [<c0105596>] common_interrupt+0x2e/0x34 [ 7.819146] [<c013007b>] ? ktime_get_ts+0x8/0x3f [ 7.819146] [<c0139420>] ? lock_release+0x167/0x16f [ 7.819146] [<c017974a>] ? core_sys_select+0x2c/0x327 [ 7.819146] [<c0179792>] core_sys_select+0x74/0x327 [ 7.819146] [<c0108c98>] ? native_sched_clock+0x8b/0x9f [ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56 [ 7.819146] [<c030ca6c>] ? _spin_unlock_irq+0x22/0x42 [ 7.819146] [<c01384d6>] ? trace_hardirqs_on+0xe6/0x10d [ 7.819146] [<c030ca77>] ? _spin_unlock_irq+0x2d/0x42 [ 7.819146] [<c023b437>] ? rtc_do_ioctl+0x11b/0x677 [ 7.819146] [<c01c487e>] ? inode_has_perm+0x5e/0x68 [ 7.819146] [<c01364a9>] ? lock_release_holdtime+0x50/0x56 [ 7.819146] [<c0108c98>] ? native_sched_clock+0x8b/0x9f [ 7.819146] [<c01c490b>] ? file_has_perm+0x83/0x8c [ 7.819146] [<c023ba08>] ? rtc_ioctl+0xf/0x11 [ 7.819146] [<c017898d>] ? do_ioctl+0x55/0x67 [ 7.819146] [<c0179d15>] sys_select+0x93/0x163 [ 7.819146] [<c0104b39>] ? sysenter_past_esp+0x9a/0xa5 [ 7.819146] [<c0104afe>] sysenter_past_esp+0x5f/0xa5 [ 7.819146] ======================= [ 7.819146] ---[ end trace 96540ca301ffb84c ]--- [ 7.819210] rtc: lost 6 interrupts [ 7.870668] type=1400 audit(1202128840.794:4): avc: denied { audit_write } for pid=399 comm="hwclock" capability=29 scontext=system_u:system_r:hwclock_t:s0 tcontext=system_u:system_r:hwclock_t:s0 tclass=capability [ 9.538866] input: PC Speaker as /class/input/input5 Because hpet_rtc_interrupt()'s call to get_rtc_time() ends up resolving to include/asm-generic/rtc.h's (hilariously inlined) get_rtc_time(), which does spin_unlock_irq() from hard IRQ context. The obvious patch fixes it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: cpa, micro-optimizationThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: cpa, clean up code flowIngo Molnar2008-02-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: cpa, eliminate CPA_ enumIngo Molnar2008-02-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: cpa, cleanupsIngo Molnar2008-02-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: implement gbpages support in change_page_attr()Andi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: support gbpages in pagetable dumpAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: add gbpages support to lookup_addressAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ tglx@linutronix.de: fix bootup crash on sparse mappings. ] Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: add pgtable accessor functions for gbpagesAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: add PUD_PAGE_SIZEAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | a PUD entry covers 1GB of virtual memory. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: add feature macros for the gbpages cpuid bitAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: switch direct mapping setup over to set_pteAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use set_pte() for setting up the 2MB pages in the direct mapping. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: fix page-present check in cpa_flush_rangeThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pte_present() might return true for PROT_NONE mappings. Explicitely check the present bit. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: remove cpa warningIngo Molnar2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | this race is legit and can happen on SMP systems. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: remove now unused clear_kernel_mappingAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: switch pci-gart over to using set_memory_np() instead of ↵Andi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clear_kernel_mapping() pci-gart needs to unmap the IOMMU aperture to prevent cache corruptions. Switch this over to using set_memory_np() instead of clear_kernel_mapping(). Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: cpa selftest, skip non present entriesThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pud and pmd entries in the RAM area might be marked as non present. Do not try to modify them in the selftest. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: CPA fix pagetable splitThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the readout of the large entry into the spinlock section to prevent an unlikely but possible race. Mark the pmd/pud entry present after the split. We preserved the non present bit in the new split mapping. Remove the stale gfp_flags double initialization. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZEAndi Kleen2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix up all users. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | | x86: cpa, fix lookup_addressThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lookup_address() returns a wrong level and a wrong pointer to a non existing pte, when pmd or pud entries are marked !present. This happens for example due to boot time mapping of GART into the low memory space. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: AMD Athlon X2 hard hang fixIngo Molnar2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An Athlon 64 X2 test system showed hard hangs shortly after marking the kernel text read-only, if we tried to preserve largepages and changed the PSE entry from RW to RO. The pagetable code itself is correct, it's the CPU that locked up hard (and not even the NMI watchdog could punch through that hard hang). So be conservative and always do splitups - like we did in the past. Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: cpa, preserve large pages if possibleThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When CPA is called on a range which fits into a large page mapping, avoid to split the page when: 1) There is no change of attributes 2) The range to change is a complete large mapping Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | | x86: cpa, check if we changed anything and tlb flushing is necessaryThomas Gleixner2008-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Flush tlbs only when there was a real change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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