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* [MIPS] Alchemy: dbdma: add API to delete custom DDMA device ids.Manuel Lauss2008-06-05
| | | | | | | | Add API to delete custom DDMA device ids create with au1xxx_ddma_device_add(). Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Alchemy: export get_au1x00_speed for modulesManuel Lauss2008-06-05
| | | | | | | au1xmmc.c driver depends on it, so export it for modules. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2008-06-04
|\ | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: switch /proc/led to seq_file sparc64: IO accessors fix
| * sparc: switch /proc/led to seq_fileAlexey Dobriyan2008-06-03
| | | | | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2008-06-04
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-tip: x86, fpu: fix CONFIG_PREEMPT=y corruption of application's FPU stack suspend-vs-iommu: prevent suspend if we could not resume x86: section mismatch fix x86: fix Xorg crash with xf86MapVidMem error x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtest x86: fix bad pmd ffff810000207xxx(9090909090909090) x86: ioremap fix failing nesting check x86: fix broken math-emu with lazy allocation of fpu area x86: enable preemption in delay x86: disable preemption in native_smp_prepare_cpus x86: fix APIC warning on 32bit v2
| * | x86, fpu: fix CONFIG_PREEMPT=y corruption of application's FPU stackSuresh Siddha2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jürgen Mell reported an FPU state corruption bug under CONFIG_PREEMPT, and bisected it to commit v2.6.19-1363-gacc2076, "i386: add sleazy FPU optimization". Add tsk_used_math() checks to prevent calling math_state_restore() which can sleep in the case of !tsk_used_math(). This prevents making a blocking call in __switch_to(). Apparently "fpu_counter > 5" check is not enough, as in some signal handling and fork/exec scenarios, fpu_counter > 5 and !tsk_used_math() is possible. It's a side effect though. This is the failing scenario: process 'A' in save_i387_ia32() just after clear_used_math() Got an interrupt and pre-empted out. At the next context switch to process 'A' again, kernel tries to restore the math state proactively and sees a fpu_counter > 0 and !tsk_used_math() This results in init_fpu() during the __switch_to()'s math_state_restore() And resulting in fpu corruption which will be saved/restored (save_i387_fxsave and restore_i387_fxsave) during the remaining part of the signal handling after the context switch. Bisected-by: Jürgen Mell <j.mell@t-online.de> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Jürgen Mell <j.mell@t-online.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: stable@kernel.org
| * | suspend-vs-iommu: prevent suspend if we could not resumePavel Machek2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iommu/gart support misses suspend/resume code, which can do bad stuff, including memory corruption on resume. Prevent system suspend in case we would be unable to resume. Signed-off-by: Pavel Machek <pavel@suse.cz> Tested-by: Patrick <ragamuffin@datacomm.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: section mismatch fixAndrew Morton2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix this: WARNING: vmlinux.o(.text+0x114bb): Section mismatch in reference from the function nopat() to the function .cpuinit.text:pat_disable() The function nopat() references the function __cpuinit pat_disable(). This is often because nopat lacks a __cpuinit annotation or the annotation of pat_disable is wrong. Reported-by: "Fabio Comolli" <fabio.comolli@gmail.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: fix Xorg crash with xf86MapVidMem errorVenki Pallipadi2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clarify the usage of mtrr_lookup() in PAT code, and to make PAT code resilient to mtrr lookup problems. Specifically, pat_x_mtrr_type() is restructured to highlight, under what conditions we look for mtrr hint. pat_x_mtrr_type() uses a default type when there are any errors in mtrr lookup (still maintaining the pat consistency). And, reserve_memtype() highlights its usage ot mtrr_lookup for request type of '-1' and also defaults in a sane way on any mtrr lookup failure. pat.c looks at mtrr type of a range to get a hint on what mapping type to request when user/API: (1) hasn't specified any type (/dev/mem mapping) and we do not want to take performance hit by always mapping UC_MINUS. This will be the case for /dev/mem mappings used to map BIOS area or ACPI region which are WB'able. In this case, as long as MTRR is not WB, PAT will request UC_MINUS for such mappings. (2) user/API requests WB mapping while in reality MTRR may have UC or WC. In this case, PAT can map as WB (without checking MTRR) and still effective type will be UC or WC. But, a subsequent request to map same region as UC or WC may fail, as the region will get trackked as WB in PAT list. Looking at MTRR hint helps us to track based on effective type rather than what user requested. Again, here mtrr_lookup is only used as hint and we fallback to WB mapping (as requested by user) as default. In both cases, after using the mtrr hint, we still go through the memtype list to make sure there are no inconsistencies among multiple users. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Rufus & Azrael <rufus-azrael@numericable.fr> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: fix pointer type warning in arch/x86/mm/init_64.c:early_memtestKevin Winchester2008-06-04
| | | | | | | | | | | | | | | | | | | | | Changed the call to find_e820_area_size to pass u64 instead of unsigned long. Signed-off-by: Kevin Winchester <kjwinchester@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: fix bad pmd ffff810000207xxx(9090909090909090)Hugh Dickins2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | OGAWA Hirofumi and Fede have reported rare pmd_ERROR messages: mm/memory.c:127: bad pmd ffff810000207xxx(9090909090909090). Initialization's cleanup_highmap was leaving alignment filler behind in the pmd for MODULES_VADDR: when vmalloc's guard page would occupy a new page table, it's not allocated, and then module unload's vfree hits the bad 9090 pmd entry left over. Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86: ioremap fix failing nesting checkIngo Molnar2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mika Kukkonen noticed that the nesting check in early_iounmap() is not actually done. Reported-by: Mika Kukkonen <mikukkon@srv1-m700-lanp.koti> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: torvalds@linux-foundation.org Cc: arjan@linux.intel.com Cc: mikukkon@iki.fi Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | x86: fix broken math-emu with lazy allocation of fpu areaSuresh Siddha2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the math emulation that got broken with the recent lazy allocation of FPU area. init_fpu() need to be added for the math-emulation path aswell for the FPU area allocation. math emulation enabled kernel booted fine with this, in the presence of "no387 nofxsr" boot param. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: hpa@zytor.com Cc: mingo@elte.hu Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | x86: enable preemption in delaySteven Rostedt2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The RT team has been searching for a nasty latency. This latency shows up out of the blue and has been seen to be as big as 5ms! Using ftrace I found the cause of the latency. pcscd-2995 3dNh1 52360300us : irq_exit (smp_apic_timer_interrupt) pcscd-2995 3dN.2 52360301us : idle_cpu (irq_exit) pcscd-2995 3dN.2 52360301us : rcu_irq_exit (irq_exit) pcscd-2995 3dN.1 52360771us : smp_apic_timer_interrupt (apic_timer_interrupt ) pcscd-2995 3dN.1 52360771us : exit_idle (smp_apic_timer_interrupt) Here's an example of a 400 us latency. pcscd took a timer interrupt and returned with "need resched" enabled, but did not reschedule until after the next interrupt came in at 52360771us 400us later! At first I thought we somehow missed a preemption check in entry.S. But I also noticed that this always seemed to happen during a __delay call. pcscd-2995 3dN.2 52360836us : rcu_irq_exit (irq_exit) pcscd-2995 3.N.. 52361265us : preempt_schedule (__delay) Looking at the x86 delay, I found my problem. In git commit 35d5d08a085c56f153458c3f5d8ce24123617faf, Andrew Morton placed preempt_disable around the entire delay due to TSC's not working nicely on SMP. Unfortunately for those that care about latencies this is devastating! Especially when we have callers to mdelay(8). Here I enable preemption during the loop and account for anytime the task migrates to a new CPU. The delay asked for may be extended a bit by the migration, but delay only guarantees that it will delay for that minimum time. Delaying longer should not be an issue. [ Thanks to Thomas Gleixner for spotting that cpu wasn't updated, and to place the rep_nop between preempt_enabled/disable. ] Signed-off-by: Steven Rostedt <srostedt@redhat.com> Cc: akpm@osdl.org Cc: Clark Williams <clark.williams@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Luis Claudio R. Goncalves" <lclaudio@uudg.org> Cc: Gregory Haskins <ghaskins@novell.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andi Kleen <andi-suse@firstfloor.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | x86: disable preemption in native_smp_prepare_cpusIngo Molnar2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Priit Laes reported the following warning: Call Trace: [<ffffffff8022f1e1>] warn_on_slowpath+0x51/0x63 [<ffffffff80282e48>] sys_ioctl+0x2d/0x5d [<ffffffff805185ff>] _spin_lock+0xe/0x24 [<ffffffff80227459>] task_rq_lock+0x3d/0x73 [<ffffffff805133c3>] set_cpu_sibling_map+0x336/0x350 [<ffffffff8021c1b8>] read_apic_id+0x30/0x62 [<ffffffff806d921d>] verify_local_APIC+0x90/0x138 [<ffffffff806d84b5>] native_smp_prepare_cpus+0x1f9/0x305 [<ffffffff806ce7b1>] kernel_init+0x59/0x2d9 [<ffffffff80518a26>] _spin_unlock_irq+0x11/0x2b [<ffffffff8020bf48>] child_rip+0xa/0x12 [<ffffffff806ce758>] kernel_init+0x0/0x2d9 [<ffffffff8020bf3e>] child_rip+0x0/0x12 fix this by generally disabling preemption in native_smp_prepare_cpus(). Reported-and-bisected-by: Priit Laes <plaes@plaes.org> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| * | x86: fix APIC warning on 32bit v2Yinghai Lu2008-06-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for http://bugzilla.kernel.org/show_bug.cgi?id=10613 BIOS bug, APIC version is 0 for CPU#0! fixing up to 0x10. (tell your hw vendor) v2: fix 64 bit compilation Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: Gabriel C <nix.or.die@googlemail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26Linus Torvalds2008-06-04
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26: sh: Add defconfig for RSK7203. sh: Update SE7206 defconfig. sh: Disable 4KSTACKS on nommu. sh: fix miscompilation of ip_fast_csum with gcc >= 4.3 sh: module.c use kernel unaligned helpers sh/kernel/cpu/irq/intc-sh5.c build fix
| * | | sh: Add defconfig for RSK7203.Paul Mundt2008-06-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | RSK7203 is supportable through the generic machvec, so we add a defconfig for those bits. This gets updated with more complete board support later. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: Update SE7206 defconfig.Paul Mundt2008-06-03
| | | | | | | | | | | | | | | | Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: Disable 4KSTACKS on nommu.Paul Mundt2008-06-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 4k stacks on nommu ends up blowing up with all sorts of interesting slab corruption. Disable this by default unless BROKEN is also enabled. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh: module.c use kernel unaligned helpersHarvey Harrison2008-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the COPY_UNALIGNED_WORD helper. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * | | sh/kernel/cpu/irq/intc-sh5.c build fixAdrian Bunk2008-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following build error caused by commit a1dc4b59fa4af97ae68ee214d4d72bbd7c7ec1dc (sh: intc_sh5 depends on cayman board for IRQ priority table.): <-- snip --> ... CC arch/sh/kernel/cpu/irq/intc-sh5.o /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/kernel/cpu/irq/intc-sh5.c: In function 'plat_irq_setup': /home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/kernel/cpu/irq/intc-sh5.c:257: error: expected declaration or statement at end of input make[4]: *** [arch/sh/kernel/cpu/irq/intc-sh5.o] Error 1 <-- snip --> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | celleb_scc_pciex endianness misannotationsAl Viro2008-06-04
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | mpc52xx_gpio iomem annotationsAl Viro2008-06-04
| |/ / |/| | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2008-06-02
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: 8250 Serial Driver: revert extra IRQ flag definition patch Blackfin arch: update anomaly headers from toolchain trunk Blackfin arch: Remove bad and usless code Blackfin arch: Fix bug - set corret SSEL and IRQ to enable AD7877 on BF527 Blackfin arch: Fix typo. it should be _outsw_8 Blackfin arch: Cleanup no functional changes
| * | | Blackfin arch: Remove bad and usless codeMichael Hennerich2008-05-31
| | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | Blackfin arch: Fix bug - set corret SSEL and IRQ to enable AD7877 on BF527Bryan Wu2008-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | AD7877 use SSEL_2 (P9.9) and IRQ_PF8 (P9.14) on BF527 - populating JP3 to enable STAMP - disable SW11.2 to disconnect SSEL_2/PF12 from Rotary NAND - disable SW18.1 to disconnect SSEL_2 from MAX1233 touchscreen chip Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | Blackfin arch: Fix typo. it should be _outsw_8Bryan Wu2008-05-20
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
| * | | Blackfin arch: Cleanup no functional changesMichael Hennerich2008-05-20
| |/ / | | | | | | | | | | | | | | | Singed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* | | Merge branch 'merge' of ↵Linus Torvalds2008-06-02
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] Fix DMA nodes in the MPC8610 HPCD device tree [POWERPC] Export empty_zero_page and copy_page in arch/ppc [POWERPC] Add "memory" clobber to MMIO accessors [POWERPC] pasemi: update pasemi_defconfig, enable electra_cf electra_cf: Add MODULE_DEVICE_TABLE()
| * | | [POWERPC] Fix DMA nodes in the MPC8610 HPCD device treeTimur Tabi2008-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The node for DMA2 in the MPC8610 HPCD device tree has the wrong compatible properties. This breaks the DMA driver and the sound driver. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | [POWERPC] Export empty_zero_page and copy_page in arch/ppcTony Breeds2008-05-31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently ext4 and fuse fail to link if modular: ERROR: "copy_page" [fs/fuse/fuse.ko] undefined! ERROR: "empty_zero_page" [fs/ext4/ext4dev.ko] undefined! make[3]: *** [__modpost] Error 1 make[2]: *** [modules] Error 2 make[1]: *** [sub-make] Error 2 While arch ppc exists it may as well compile, so this exports those symbols (which are already exported in arch/powerpc). Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | | [POWERPC] pasemi: update pasemi_defconfig, enable electra_cfOlof Johansson2008-05-27
| | | | | | | | | | | | | | | | | | | | | | | | Refresh pasemi_defconfig and enable ELECTRA_CF=y. Signed-off-by: Olof Johansson <olof@lixom.net>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds2008-05-30
|\ \ \ \ | |_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: lguest: notify on empty virtio: force callback on empty. virtio_blk: fix endianess annotations virtio_config: fix len calculation of config elements virtio_net: another race with virtio_net and enable_cb virtio: An entropy device, as suggested by hpa. virtio_blk: allow read-only disks lguest: fix ugly <NULL> in /proc/interrupts virtio: set device index in common code. virtio: virtio_pci should not set bus_id. virtio: bus_id for devices should contain 'virtio' Fix crash in virtio_blk during modprobe ; rmmod ; modprobe lguest: use ioremap_cache, not ioremap
| * | | lguest: fix ugly <NULL> in /proc/interruptsRusty Russell2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before: root@ubuntu:~# cat /proc/interrupts CPU0 1: 1672 lguest-<NULL> virtio0 2: 1 lguest-<NULL> virtio1 ... After: root@ubuntu:~# cat /proc/interrupts CPU0 1: 2889 lguest-level virtio0 2: 9 lguest-level virtio1 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* | | | [S390] Update default configuration.Martin Schwidefsky2008-05-30
| | | | | | | | | | | | | | | | Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | [S390] disassembler: fix idte instruction format.Martin Schwidefsky2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The correct instruction format of idte is "idte r1,r3,r2" with r1 at bit 24, r3 at bit 16 and r2 at bit 28. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | [S390] showmem: Only walk spanned pages.Heiko Carstens2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert show_mem() so its nearly the same as on x86/powerpc. Gives us proper locking and we get also rid of the only use of max_mapnr. Also the number of pages was contained in an int which might not be sufficient not too far in the future. Cc: Johannes Weiner <hannes@saeurebad.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | [S390] appldata: prevent cpu hotplug when walking cpu_online_map.Gerald Schaefer2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use get_online_cpus() to prevent cpu hotplug in situations where for_each_online_cpu() is called. Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | [S390] Fix section mismatch warnings.Heiko Carstens2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the last remaining section mismatch warnings in s390 architecture code. It reveals also a real bug introduced by... me with git commit 2069e978d5a6e7b45d58027e3de7f879b8c5e488 ("[S390] sparsemem vmemmap: initialize memmap.") Calling the generic vmemmap_alloc_block() function to get initialized memory is a nice idea, however that function is __meminit annotated and therefore the function might be gone if we try to call it later. This can happen if a DCSS segment gets added. So basically revert the patch and clear the memmap explicitly to fix the original bug. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | [S390] fix sparsemem related compile error with allnoconfig on s390Hans-Joachim Picht2008-05-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On s390 make allnoconfig fails with the following build error: arch/s390/mm/init.c: In function 'show_mem': arch/s390/mm/init.c:55: error: implicit declaration of function 'pfn_valid' make[1]: *** [arch/s390/mm/init.o] Error 1 make: *** [arch/s390/mm] Error 2 This problem can by fixed ensuring that ARCH_SELECT_MEMORY_MODEL is always turned on. Signed-off-by: Hans-Joachim Picht <hans@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | Merge branch 'release' of ↵Linus Torvalds2008-05-28
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Workaround for RSE issue
| * | | [IA64] Workaround for RSE issueTony Luck2008-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: An application violating the architectural rules regarding operation dependencies and having specific Register Stack Engine (RSE) state at the time of the violation, may result in an illegal operation fault and invalid RSE state. Such faults may initiate a cascade of repeated illegal operation faults within OS interruption handlers. The specific behavior is OS dependent. Implication: An application causing an illegal operation fault with specific RSE state may result in a series of illegal operation faults and an eventual OS stack overflow condition. Workaround: OS interruption handlers that switch to kernel backing store implement a check for invalid RSE state to avoid the series of illegal operation faults. The core of the workaround is the RSE_WORKAROUND code sequence inserted into each invocation of the SAVE_MIN_WITH_COVER and SAVE_MIN_WITH_COVER_R19 macros. This sequence includes hard-coded constants that depend on the number of stacked physical registers being 96. The rest of this patch consists of code to disable this workaround should this not be the case (with the presumption that if a future Itanium processor increases the number of registers, it would also remove the need for this patch). Move the start of the RBS up to a mod32 boundary to avoid some corner cases. The dispatch_illegal_op_fault code outgrew the spot it was squatting in when built with this patch and CONFIG_VIRT_CPU_ACCOUNTING=y Move it out to the end of the ivt. Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6Linus Torvalds2008-05-27
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6: avr32: Fix cpufreq oops when ondemand governor is default avr32: Update defconfigs avr32: export strnlen_user avr32: export copy_page
| * | | avr32: Fix cpufreq oops when ondemand governor is defaultHaavard Skinnemoen2008-05-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the AP7 cpufreq init to late_initcall() so that we don't try to bring up cpufreq until the governor is ready. x86 also uses late_initcall() for this. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | | avr32: Update defconfigsHaavard Skinnemoen2008-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Just provide reasonable defaults for the new stuff. Tickless and hrtimers are turned on for all boards except ATSTK1004. Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | | avr32: export strnlen_userAdrian Bunk2008-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following build error: <-- snip --> ... MODPOST 1327 modules ERROR: "strnlen_user" [drivers/input/misc/uinput.ko] undefined! ... make[2]: *** [__modpost] Error 1 <-- snip --> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
| * | | avr32: export copy_pageAdrian Bunk2008-05-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following build error: <-- snip --> ... MODPOST 61 modules ERROR: "copy_page" [fs/fuse/fuse.ko] undefined! ... make[2]: *** [__modpost] Error 1 <-- snip --> Also add an empty line since *_page aren't "String functions". Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26Linus Torvalds2008-05-26
|\ \ \ \ | |/ / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.26: sh: Drop broken URAM support on SH7723. sh: update Migo-R defconfig sh: use sm501 8250 mfd support on r2d boards sh: add probe support for new sh7723 cut sh: fix VPU interrupt vector for sh7723 sh: fix USBF resource for sh7722
| * | | sh: Drop broken URAM support on SH7723.Paul Mundt2008-05-25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This was copied over from the previous MobileR bits, which doesn't apply to R2. The URAM block on R2 is recycled for the L2 instead. Signed-off-by: Paul Mundt <lethal@linux-sh.org>