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* [POWERPC] Clean out asm/of_{platform, device}.hJon Loeliger2007-12-064-5/+5
| | | | | | | | Convert #include of asm/of_{platform, device}.h into linux/of_{platform,device}.h for a few scattered platforms. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'for-2.6.25' of ↵Paul Mackerras2007-12-056-43/+105
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/olof/pasemi into for-2.6.25
| * [POWERPC] pasemi: Fix module information for gpio-mdioOlof Johansson2007-12-031-0/+5
| | | | | | | | | | | | | | | | Fix up the module information for gpio-mdio, it wouldn't load because of lacking license, and wouldn't auto-load because of missing MODULE_DEVICE_TABLE. Signed-off-by: Olof Johansson <olof@lixom.net>
| * [POWERPC] pasemi: Move cpus to hold loop before restartOlof Johansson2007-12-011-0/+7
| | | | | | | | | | | | | | | | Use smp_send_stop() to move all cpus besides the one executing reboot into a hold loop, to keep them from being in powersavings mode at the time of reboot. Signed-off-by: Olof Johansson <olof@lixom.net>
| * [POWERPC] pasemi: Don't enter powersaving states from elevated astatesOlof Johansson2007-12-013-1/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the PWRficient cpus are entered into powersavings states, the astate is automatically dropped down to 0. While we still restore it when we come out of idle, it can still cause some weird effects with respect to performance (especially since it takes a while to ramp up to higher astates). So, to avoid this, don't enter power savings when the cpufreq driver (or user) has set higher astates than 0. The restore is still required, since there's a chance the astate has been raised from the other cpu while the idling one was asleep. Signed-off-by: Olof Johansson <olof@lixom.net>
| * [POWERPC] pasemi: Broaden specific references to 1682MOlof Johansson2007-11-294-7/+22
| | | | | | | | | | | | | | | | | | | | | | There will be more product numbers in the future than just PA6T-1682M, but they will share much of the features. Remove some of the explicit references and compatibility checks with 1682M, and replace most of them with the more generic term "PWRficient". Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Michael Buesch <mb@bu3sch.de> Acked-by: Doug Thompson <dougthompson@xmission.com>
| * [POWERPC] pasemi: clean up mdio_gpio a bitOlof Johansson2007-11-291-37/+51
| | | | | | | | | | | | | | | | | | | | | | Misc cleanups of mdio_gpio: * Better error handling/unrolling in case of init/alloc failures * Go through child nodes and get their interrupts instead of using hardcoded values * Remap the GPIO registers at module load/driver init instead of during probe * Coding style and other misc cleanups Signed-off-by: Olof Johansson <olof@lixom.net>
* | [POWERPC] Add missing spaces in printk formats in arch/ppcjoe@perches.com2007-12-031-2/+2
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Add missing spaces in printk formatsjoe@perches.com2007-12-036-7/+7
| | | | | | | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Remove redundant declaration of hose_listStephen Rothwell2007-12-031-2/+0
| | | | | | | | | | | | | | It is already declared in ppc-pci.h which is included. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] iSeries: Fix sparse warnings in setup.cStephen Rothwell2007-12-032-8/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arch/powerpc/platforms/iseries/setup.c:111:27: warning: constant 0x100000000 is so big it is long arch/powerpc/platforms/iseries/setup.c:113:23: warning: constant 0x100000000 is so big it is long arch/powerpc/platforms/iseries/setup.c:117:27: warning: constant 0x000fffffffffffff is so big it is long arch/powerpc/platforms/iseries/setup.c:127:28: warning: constant 0x100000000 is so big it is long arch/powerpc/platforms/iseries/setup.c:129:24: warning: constant 0x100000000 is so big it is long arch/powerpc/platforms/iseries/setup.c:233:5: warning: constant 0x000fffffffffffff is so big it is long arch/powerpc/platforms/iseries/setup.c:235:5: warning: constant 0x000fffffffffffff is so big it is long arch/powerpc/platforms/iseries/setup.c:319:6: warning: symbol 'mschunks_alloc' was not declared. Should it be static? arch/powerpc/platforms/iseries/setup.c:661:6: warning: symbol 'iSeries_early_setup' was not declared. Should it be static? Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] iSeries: Declare iSeries_pci_final_fixup in pci.hStephen Rothwell2007-12-032-5/+6
| | | | | | | | | | | | | | | | Fixes sparse warning: arch/powerpc/platforms/iseries/pci.c:169:13: warning: symbol 'iSeries_pci_final_fixup' was not declared. Should it be static? Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] iSeries: Mark two functions __initStephen Rothwell2007-12-031-2/+2
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Make global_phb_number staticStephen Rothwell2007-12-031-1/+1
| | | | | | | | | | | | | | since it's not used outside of arch/powerpc/kernel/pci-common.c. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Add xmon function to dump 44x TLBBenjamin Herrenschmidt2007-12-031-0/+38
| | | | | | | | | | | | | | | | This adds a function to xmon to dump the content of the 44x processor TLB with a little bit of decoding (but not much). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] EEH: Report errors as soon as possibleLinas Vepstas2007-12-031-7/+8
| | | | | | | | | | | | | | | | | | | | Do not wait for the pci slot status before reporting an error to the device driver. Some systems may take many seconds to report the slot status, and this can confuse unsuspecting device drivers. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] EEH: Be careful when identifying "empty" slots.Linas Vepstas2007-12-031-1/+1
| | | | | | | | | | | | | | | | If an "empty" slot is failing, make sure its a permanent failure; else process the error normally. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] EEH: Work with device endpoint, alwaysLinas Vepstas2007-12-031-0/+1
| | | | | | | | | | | | | | | | Perform all error checking at the "partitonable endpoint" of the device. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powermac: Fix warning in time.cJohannes Berg2007-12-031-0/+2
| | | | | | | | | | | | | | | | | | | | arch/powerpc/platforms/powermac/time.c:88: warning: 'to_rtc_time' defined but not used This fixes the warning by making the relevant code depend on the users. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Remove prod_processor()Nathan Lynch2007-12-031-5/+0
| | | | | | | | | | | | | | | | prod_processor() is unused, and that's a good thing, since it does not supply the required proc id parameter to H_PROD. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Cleanup SMT thread handlingBenjamin Herrenschmidt2007-12-033-15/+69
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This cleans up the SMT thread handling, removing some hard coded assumptions and providing a set of helpers to convert between linux cpu numbers, thread numbers and cores. This implementation requires the number of threads per core to be a power of 2 and identical on all cores in the system, but it's an implementation detail, not an API requirement and so this limitation can be lifted in the future if anybody ever needs it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Remove xmon from ml300 and ml403 defconfig in arch/ppcGrant Likely2007-12-032-2/+2
| | | | | | | | | | | | | | xmon is broken under arch/ppc so remove it from the defconfig. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Revert "[POWERPC] Fix RTAS os-term usage on kernel panic"Paul Mackerras2007-12-032-8/+7
| | | | | | | | | | | | | | | | | | | | | | | | This reverts commit a2b51812a4dc5db09ab4d4638d4d8ed456e2457e. It turns out that this change caused some machines to fail to come back up when being rebooted, and generated an error in the hypervisor error log on some machines. The platform architecture (PAPR) is a little unclear on exactly when the RTAS ibm,os-term function should be called. Until that is clarified I'm reverting this commit. Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-11-301-1/+5
|\ \ | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Fix build. [MIPS] Fix use of smp_processor_id() in preemptible code.
| * | [MIPS] Fix build.Ralf Baechle2007-12-011-1/+5
| | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-11-3026-100/+359
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 4680/1: parentheses around NR_IRQS definition [ARM] 4679/1: AT91: Change maintainer email address [ARM] 4675/1: pxa: fix mfp address definition error for pxa320 [ARM] 4674/1: pxa: increase LCD PCLK drive strength to fast 2mA for PXA300/PXA310 [ARM] 4673/1: pxa: add missing IRQ_SSP4 definitions for PXA3xx [ARM] 4672/1: pxa: fix DRCMR(n) to support PXA27x and later processors [ARM] 4665/1: fix __und_usr wrt accessing the undefined insn in user space [ARM] 4659/1: remove possibilities for spurious false negative with __kuser_cmpxchg [ARM] 4661/1: fix do_undefinstr wrt the enabling of IRQs [ARM] uengine: fix memset size error [ARM] 4648/1: i.MX/MX1 ensure more complete AITC initialization [ARM] 4611/2: AT91: Fix GPIO buttons pins on SAM9261-EK. [ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpio [ARM] 4604/2: AT91: Master clock divistor on SAM9 [ARM] 4662/1: Fix PXA serial driver compilation if SERIAL_PXA_CONSOLE is disabled [ARM] PXA ssp: unlock when ssp tries to close an invalid port [ARM] 4654/1: pxa: update default MFP register value [ARM] 4653/1: pxa: fix a gpio typo in mfp-pxa320.h [ARM] 4652/1: pxa: fix a typo of pxa27x usb host clk definition [ARM] 4651/1: pxa: add PXA3xx specific IRQ definitions
| | |
| | \
| *-. \ Merge branches 'at91-fixes' and 'pxa-fixes'Russell King2007-11-2922-49/+252
| |\ \ \
| | | * | [ARM] 4675/1: pxa: fix mfp address definition error for pxa320eric miao2007-11-291-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: bridge wu <bridge.wu@marvell.com> Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | [ARM] PXA ssp: unlock when ssp tries to close an invalid portRoel Kluin2007-11-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | | * | [ARM] 4652/1: pxa: fix a typo of pxa27x usb host clk definitioneric miao2007-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CKEN_USBHOST should be used instead of CKEN_USB for usb host Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | [ARM] 4611/2: AT91: Fix GPIO buttons pins on SAM9261-EK.Andrew Victor2007-11-261-8/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The incorrect GPIO pins are being initialized for the buttons on the Atmel AT91SAM9261-EK board. This buggy configuration turns LCD screen blue... Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com> Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | [ARM] 4650/1: AT91: New-style init of I2C, support for i2c-gpioAndrew Victor2007-11-2618-35/+231
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The AT91 I2C driver is currently marked as "broken" due to hardware issues. This patch enables AT91-based platforms to also use the bitbanged GPIO for I2C. This updates platform setup logic (setting up an i2c-gpio device using the same pins as the i2c-at91 device, unless only the BROKEN driver is enabled). Also make use of the new-style initialization of I2C devices using i2c_register_board_info(). Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * | | [ARM] 4604/2: AT91: Master clock divistor on SAM9Andrew Victor2007-11-261-3/+6
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The calculation for the Master clock divisor (MDIV) is different on the SAM9 processors than on the AT91RM9200. Orignal patch from Sascha Erlacher. Also use the defined AT91_PMC_PRES instead of hard-coded bitmasks. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] 4665/1: fix __und_usr wrt accessing the undefined insn in user spaceNicolas Pitre2007-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The ldrt fixup code expects r9 to be set. Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] 4659/1: remove possibilities for spurious false negative with ↵Nicolas Pitre2007-11-262-39/+58
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | __kuser_cmpxchg The ARM __kuser_cmpxchg routine is meant to implement an atomic cmpxchg in user space. It however can produce spurious false negative if a processor exception occurs in the middle of the operation. Normally this is not a problem since cmpxchg is typically called in a loop until it succeeds to implement an atomic increment for example. Some use cases which don't involve a loop require that the operation be 100% reliable though. This patch changes the implementation so to reattempt the operation after an exception has occurred in the critical section rather than abort it. Here's a simple program to test the fix (don't use CONFIG_NO_HZ in your kernel as this depends on a sufficiently high interrupt rate): #include <stdio.h> typedef int (__kernel_cmpxchg_t)(int oldval, int newval, int *ptr); #define __kernel_cmpxchg (*(__kernel_cmpxchg_t *)0xffff0fc0) int main() { int i, x = 0; for (i = 0; i < 100000000; i++) { int v = x; if (__kernel_cmpxchg(v, v+1, &x)) printf("failed at %d: %d vs %d\n", i, v, x); } printf("done with %d vs %d\n", i, x); return 0; } Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] 4661/1: fix do_undefinstr wrt the enabling of IRQsNicolas Pitre2007-11-261-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The lock is acquired with spin_lock_irqsave() and released in the not-found case with spin_unlock_irqrestore(). Signed-off-by: Nicolas Pitre <nico@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] uengine: fix memset size errorLi Zefan2007-11-261-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The size passing to memset is wrong. And here we can replace kmalloc with kzalloc. Signed-off-by Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | [ARM] 4648/1: i.MX/MX1 ensure more complete AITC initializationPavel Pisa2007-11-261-6/+45
| |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | The AITC code did not allow to start kernel, if bootloader manipulates with interrupt level mask. The change ensures, that NIMASK is initialized into correct state and that interrupts enable registers are cleared. Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2007-11-291-25/+16
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hpa/linux-2.6-x86setup: x86 setup: don't recalculate ss:esp unless really necessary
| * | | x86 setup: don't recalculate ss:esp unless really necessaryJens Rottmann2007-11-281-25/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to work around old LILO versions providing an invalid ss register, the current setup code always sets up a new stack, immediately following .bss and the heap. But this breaks LOADLIN. This rewrite of the workaround checks for an invalid stack (ss!=ds) first, and leaves ss:sp alone otherwise (apart from aligning esp). [hpa note: LOADLIN has a number of arbitrary hard-coded limits that are being pushed up against. Without some major revision of LOADLIN itself it will not be sustainable keeping it alive. This gives it another brief lease on life, however. This patch also helps the cmdline truncation problem with old versions of SYSLINUX.] Signed-off-by: Jens Rottmann <JRottmann at LiPPERT-AT. de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* | | | x86/paravirt: revert exports to restore old behaviourJeremy Fitzhardinge2007-11-291-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Subdividing the paravirt_ops structure caused a regression in certain non-GPL modules which try to use mmu_ops and cpu_ops. This restores the old behaviour, and makes it consistent with the non-CONFIG_PARAVIRT case. Takashi Iwai <tiwai@suse.de> adds: > I took at this problem (as I have an nvidia card on one of my > workstations), and found out that the following suffer from > EXPORT_SYMBOL_GPL changes: > > * local_disable_irq(), local_irq_save*(), etc. > * MSR-related macros like rdmsr(), wrmsr(), read_cr0(), etc. > wbinvd(), too. > * pmd_val(), pgd_val(), etc are all involved with pv_mm_ops. > pmd_large() and pmd_bad() is also indirectly involved. > __flush_tlb() and friends suffer, too. Christoph Hellwig objects to this patch on the grounds that modules shouldn't be using these operations anyway. I don't think this is a particularly good reason to reject the patch, for several reasons: 1. These operations are still available to modules when not using CONFIG_PARAVIRT, since they are implicitly exported as inline functions via the kernel headers. Exporting the same functionality as GPL-only symbols just adds a gratuitious difference between CONFIG_PARAVIRT and non-CONFIG_PARAVIRT configurations. If we really think these operations are not for module use (or non-GPL module use), then we should solve the problem in a general way. 2. It's a regression from previous kernels, which would work these modules even with CONFIG_PARAVIRT enabled. 3. The operations in question seem pretty reasonable for modules to use. The control registers/MSRs can be accessed directly anyway, so there's no benefit in preventing modules from using standard interfaces. And it seems reasonable to allow a graphics driver to create its own mappings if it wants. Therefore, I think this patch should go in for 2.6.24. If people really think that these operations should not be available to modules, then we can address that separately. Signed-off-by: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com> Cc: Tobias Powalowski <t.powa@gmx.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: Takashi Iwai <tiwai@suse.de> Cc: Zachary Amsden <zach@vmware.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | lguest: prevent VISWS or VOYAGER randconfigsRandy Dunlap2007-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Keep lguest from being enabled on VISWS or VOYAGER configs, just as is already done for VMI and XEN. Otherwise randconfigs with VISWS and LGUEST have this problem: In file included from arch/x86/kernel/setup_32.c:61: include/asm-x86/mach-visws/setup_arch.h:8:1: warning: "ARCH_SETUP" redefined In file included from include/asm/msr.h:80, from include/asm/processor_32.h:17, from include/asm/processor.h:2, from include/asm/thread_info_32.h:16, from include/asm/thread_info.h:2, from include/linux/thread_info.h:21, from include/linux/preempt.h:9, from include/linux/spinlock.h:49, from include/linux/seqlock.h:29, from include/linux/time.h:8, from include/linux/timex.h:57, from include/linux/sched.h:53, from arch/x86/kernel/setup_32.c:24: include/asm/paravirt.h:458:1: warning: this is the location of the previous definition (and of course, this happens because kconfig does not follow dependencies when [evil] select is used...) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | FRV: arrange things such that BRA can reach from the trap tableDavid Howells2007-11-294-15/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Arrange the sections in the FRV arch so that a BRA instruction with a 16-bit displacement can always reach from the trap table to entry.S, tlb-miss.S and break.S. The problem otherwise is that the linker can insert sufficient code between the slots in the trap table and the targets of the branch instructions in those slots that the displacement field in the instruction isn't sufficiently large. This is because the branch targets were in the .text section along with most of the other code in the kernel. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | memory hotplug x86_64: fix section mismatch in init_memory_mapping()KAMEZAWA Hiroyuki2007-11-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Changes __meminit to __init_refok. WARNING: vmlinux.o(.text+0x1d07c): Section mismatch: reference to .init.text:find_e820_area (between 'init_memory_mapping' and 'arch_add_memory') Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | leak in do_ubd_requestMiklos Szeredi2007-11-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | uml: fix !NO_HZ busy-loopJeff Dike2007-11-291-3/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With NO_HZ disabled, the UML idle loop effectively becomes a busy loop, as it will sleep for no time. The cause was forgetting to restart the tick after waking up from sleep. It was disabled before sleeping, and the remaining time used as the interval to sleep. So, the tick needs to be restarted when nanosleep finishes. This is done by introducing after_sleep_interval, which is empty in the NO_HZ case, but which sets the tick starting in the !NO_HZ case. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | IP22ZILOG: fix lockup and sysrqThomas Bogendoerfer2007-11-291-19/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - fix lockup when switching from early console to real console - make sysrq reliable - fix panic, if sysrq is issued before console is opened Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | xen: mask _PAGE_PCD from ptesJeremy Fitzhardinge2007-11-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | _PAGE_PCD maps a page with caching disabled, which is typically used for mapping harware registers. Xen never allows it to be set on a mapping, and unprivileged guests never need it since they can't see the real underlying hardware. However, some uncached mappings are made early when probing the (non-existent) APIC, and its OK to mask off the PCD flag in these cases. This became necessary because Xen started checking for this bit, rather than silently masking it off. Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | UML: build fixWANG Cong2007-11-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | include/asm-um/arch points to the non-existed include/asm-i386 directory. Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Jeff Dike <jdike@karaya.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | Fix boot problem with iSeries lacking hugepage supportMel Gorman2007-11-291-0/+5
|/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Ordinarily the size of a pageblock is determined at compile-time based on the hugepage size. On PPC64, the hugepage size is determined at runtime based on what is supported by the machine. With legacy machines such as iSeries that do not support hugepages, HPAGE_SHIFT is 0. This results in pageblock_order being set to -PAGE_SHIFT and a crash results shortly afterwards. This patch adds a function to select a sensible value for pageblock order by default when HUGETLB_PAGE_SIZE_VARIABLE is set. It checks that HPAGE_SHIFT is a sensible value before using the hugepage size; if it is not MAX_ORDER-1 is used. This is a fix for 2.6.24. Credit goes to Stephen Rothwell for identifying the bug and testing candidate patches. Additional credit goes to Andy Whitcroft for spotting a problem with respects to IA-64 before releasing. Additional credit to David Gibson for testing with the libhugetlbfs test suite. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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