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* sched: adaptive scheduler granularityPeter Zijlstra2007-08-251-0/+1
| | | | | | | | | | | | | | | | | | Instead of specifying the preemption granularity, specify the wanted latency. By fixing the granlarity to a constany the wakeup latency it a function of the number of running tasks on the rq. Invert this relation. sysctl_sched_granularity becomes a minimum for the dynamic granularity computed from the new sysctl_sched_latency. Then use this latency to do more intelligent granularity decisions: if there are fewer tasks running then we can schedule coarser. This helps performance while still always keeping the latency target. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-schedLinus Torvalds2007-08-231-2/+3
|\ | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: sched: tweak the sched_runtime_limit tunable sched: skip updating rq's next_balance under null SD sched: fix broken SMT/MC optimizations sched: accounting regression since rc1 sched: fix sysctl directory permissions sched: sched_clock_idle_[sleep|wakeup]_event()
| * sched: fix broken SMT/MC optimizationsSuresh Siddha2007-08-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a four package system with HT - HT load balancing optimizations were broken. For example, if two tasks end up running on two logical threads of one of the packages, scheduler is not able to pull one of the tasks to a completely idle package. In this scenario, for nice-0 tasks, imbalance calculated by scheduler will be 512 and find_busiest_queue() will return 0 (as each cpu's load is 1024 > imbalance and has only one task running). Similarly MC scheduler optimizations also get fixed with this patch. [ mingo@elte.hu: restored fair balancing by increasing the fuzz and adding it back to the power decision, without the /2 factor. ] Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * sched: sched_clock_idle_[sleep|wakeup]_event()Ingo Molnar2007-08-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | construct a more or less wall-clock time out of sched_clock(), by using ACPI-idle's existing knowledge about how much time we spent idling. This allows the rq clock to work around TSC-stops-in-C2, TSC-gets-corrupted-in-C3 type of problems. ( Besides the scheduler's statistics this also benefits blktrace and printk-timestamps as well. ) Furthermore, the precise before-C2/C3-sleep and after-C2/C3-wakeup callbacks allow the scheduler to get out the most of the period where the CPU has a reliable TSC. This results in slightly more precise task statistics. the ACPI bits were acked by Len. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Len Brown <len.brown@intel.com>
* | Renumber AUDIT_TTY_[GS]ETMiloslav Trmac2007-08-231-2/+2
| | | | | | | | | | | | | | | | | | Renumber AUDIT_TTY_[GS]ET to avoid a conflict with netlink message types already used in the wild. Signed-off-by: Miloslav Trmac <mitr@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2007-08-233-0/+10
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Run k8t_sound_hostbridge quirk only when needed PCI: disable MSI on RX790 PCI: disable MSI on RD580 PCI: disable MSI on RS690 PCI: make pcie_get_readrq visible in pci.h PCI: lets kill the 'PCI hidden behind bridge' message pci/hotplug/cpqphp_ctrl.c: remove stale BKL use PCI: Document pci_iomap() PCI: quirk_e100_interrupt() called too early PCI: Move prototypes for pci_bus_find_capability to include/linux/pci.h
| * | PCI: disable MSI on RX790Tejun Heo2007-08-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RX790 can't do MSI like its predecessors. Disable MSI on RX790. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: disable MSI on RD580Tejun Heo2007-08-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | RD580 can't do MSI like its predecessors. Disable MSI on RD580. Signed-off-by: Tejun Heo <teheo@suse.de> CC: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: disable MSI on RS690Tejun Heo2007-08-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RS690 can't do MSI like its predecessors. Disable MSI on RS690. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Henry Su <henry.su@amd.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: make pcie_get_readrq visible in pci.hBrice Goglin2007-08-221-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [PATCH] PCI: make pcie_get_readrq visible in pci.h pcie_get_readrq() is EXPORT_SYMBOL'ed, but its prototype is not visible in pci.h, add it there. This is needed by some network drivers. Signed-off-by: Brice Goglin <brice@myri.com> Acked-by: Peter Oruba <peter.oruba@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: Document pci_iomap()Rolf Eike Beer2007-08-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This useful interface is hardly mentioned anywhere in the in-tree documentation. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Tejun Heo <htejun@gmail.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | PCI: Move prototypes for pci_bus_find_capability to include/linux/pci.hKumar Gala2007-08-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need pci_bus_find_capability() in some arch/powerpc code so move the prototype into a header accessible to it. Also kill the duplicate prototype for pci_bus_alloc_resource(). Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | m68knommu: include asm-generic/pgtable.hGreg Ungerer2007-08-231-0/+2
| |/ |/| | | | | | | | | | | | | Include asm-generic/pgtable.h to pick up the lazy_mmu_mode and lazy_cpu_mode macros. Won't build without them. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Apply memory policies to top two highest zones when highest zone is ZONE_MOVABLEMel Gorman2007-08-222-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The NUMA layer only supports NUMA policies for the highest zone. When ZONE_MOVABLE is configured with kernelcore=, the the highest zone becomes ZONE_MOVABLE. The result is that policies are only applied to allocations like anonymous pages and page cache allocated from ZONE_MOVABLE when the zone is used. This patch applies policies to the two highest zones when the highest zone is ZONE_MOVABLE. As ZONE_MOVABLE consists of pages from the highest "real" zone, it's always functionally equivalent. The patch has been tested on a variety of machines both NUMA and non-NUMA covering x86, x86_64 and ppc64. No abnormal results were seen in kernbench, tbench, dbench or hackbench. It passes regression tests from the numactl package with and without kernelcore= once numactl tests are patched to wait for vmstat counters to update. akpm: this is the nasty hack to fix NUMA mempolicies in the presence of ZONE_MOVABLE and kernelcore= in 2.6.23. Christoph says "For .24 either merge the mobility or get the other solution that Mel is working on. That solution would only use a single zonelist per node and filter on the fly. That may help performance and also help to make memory policies work better." Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Tested-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | selection.h: add tty_struct forward declarationAndrew Morton2007-08-221-0/+2
| | | | | | | | | | | | | | | | | | In file included from drivers/video/console/newport_con.c:16: include/linux/selection.h:16: warning: "struct tty_struct" declared inside parameter list include/linux/selection.h:16: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | m68k/mac: Make mac_hid_mouse_emulate_buttons() declaration visibleGeert Uytterhoeven2007-08-221-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | m68k/mac: Make mac_hid_mouse_emulate_buttons() declaration visible drivers/char/keyboard.c: In function 'kbd_keycode': drivers/char/keyboard.c:1142: error: implicit declaration of function 'mac_hid_mouse_emulate_buttons' The forward declaration of mac_hid_mouse_emulate_buttons() is not visible on m68k because it's hidden in the middle of a big #ifdef block. Move it to <linux/kbd_kern.h>, correct the type of the second parameter, and include <linux/kbd_kern.h> where needed. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | m68k: Enable arbitary speed tty supportAlan Cox2007-08-223-3/+12
| | | | | | | | | | | | | | | | | | Add the needed constants and defines to activate the existing code. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | m68k: Use _AC() instead of #ifdef __ASSEMBLY__Geert Uytterhoeven2007-08-222-9/+3
| | | | | | | | | | | | | | | | | | m68k: Use _AC() instead of #ifdef __ASSEMBLY__ hackery when needed, remove hackery when unused. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | m68k: <asm/page.h> needs <linux/compiler.h>Geert Uytterhoeven2007-08-221-0/+2
| | | | | | | | | | | | | | | | m68k: <asm/page.h> needs <linux/compiler.h> because of __attribute_const__ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | fix NULL pointer dereference in __vm_enough_memory()Alan Cox2007-08-222-6/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new exec code inserts an accounted vma into an mm struct which is not current->mm. The existing memory check code has a hard coded assumption that this does not happen as does the security code. As the correct mm is known we pass the mm to the security method and the helper function. A new security test is added for the case where we need to pass the mm and the existing one is modified to pass current->mm to avoid the need to change large amounts of code. (Thanks to Tobias for fixing rejects and testing) Signed-off-by: Alan Cox <alan@redhat.com> Cc: WU Fengguang <wfg@mail.ustc.edu.cn> Cc: James Morris <jmorris@redhat.com> Cc: Tobias Diedrich <ranma+kernel@tdiedrich.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Serial 8250: handle saving the clear-on-read bits from the LSR and MSRCorey Minyard2007-08-221-0/+1
|/ | | | | | | | | | | | | | | | | | | | | Reading the LSR clears the break, parity, frame error, and overrun bits in the 8250 chip, but these are not being saved in all places that read the LSR. Same goes for the MSR delta bits. Save the LSR bits off whenever the lsr is read so they can be handled later in the receive routine. Save the MSR bits to be handled in the modem status routine. Also, clear the stored bits and clear the interrupt registers before enabling interrupts, to avoid handling old values of the stored bits in the interrupt routines. [akpm@linux-foundation.org: clean up pre-existing code] Signed-off-by: Corey Minyard <minyard@acm.org> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Cc: Yinghai Lu <yinghai.lu@sun.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: 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>
* Merge branch 'master' of ↵Linus Torvalds2007-08-222-15/+15
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [SPARC32]: Revert f642b263800e6e57c377d630be6d2a999683b579. [SPARC64]: Need to clobber global reg vars in switch_to().
| * [SPARC64]: Need to clobber global reg vars in switch_to().David S. Miller2007-08-202-15/+15
| | | | | | | | | | | | | | Otherwise the compiler can't see the things like the per-cpu area base register are changing. Signed-off-by: David S. Miller <davem@davemloft.net>
* | [S390] Change atomic_read/set to inline functions with barrier semantics.Heiko Carstens2007-08-221-4/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | After doing some tests this seems to be the best variant for s390 and should be correct as well. With gcc 4.2.1 we get the following kernel image sizes using the default configuration: atomic_t type volatile, atomic_read/set defines 5311824 bytes atomic_t type int, atomic_read/set defines 5270864 bytes atomic_t type int, atomic_read/set inline asm 5279056 bytes atomic_t type int, atomic_read/set inline barrier 5270864 bytes Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | [S390] vmur: fix diag14 exceptions with addresses > 2GB.Michael Holzheu2007-08-223-17/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | There are several s390 diagnose calls, which must be executed below the 2GB memory boundary. In order to enforce this, those diagnoses must be compiled into the kernel. Currently diag 14 can be called within the vmur kernel module from addresses above 2GB. This leads to specification exceptions. This patch moves diag10, diag14 and diag210 into the new diag.c file. Signed-off-by: Michael Holzheu <holzheu@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
* | [POWERPC] Fix PCI Device ID for MPC8544/8533 processorsKumar Gala2007-08-211-2/+4
|/ | | | | | | | | | The initial user manuals for MPC8544/8533 had some issues with properly documenting the device IDs for MPC8544/8533. These processors are almost identical and both show up on the reference boards. Fix up the quirks for PCIe support to handle MPC8533/E. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2007-08-201-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: ide-disk: workaround for buggy HPA support on ST340823A (take 3) hpt34x: fix CONFIG_HPT34X_AUTODMA=n handling triflex: add missing ->dma_base check pdc202xx_old: add missing ->dma_base check pdc202xx_new: add missing ->dma_base check cs5530: add missing ->dma_base check ide: ide_config_drive_speed() bugfixes ide: add cable detection for early UDMA66 devices (take 3) ide-pmac: fix drive->init_speed reporting ide: config_drive_for_dma() fixes ide-cris: fix ->set_pio_mode method to set transfer mode on the device ide: fix hidden dependencies on CONFIG_IDE_GENERIC ide: make CONFIG_IDE_GENERIC default to N
| * ide: add cable detection for early UDMA66 devices (take 3)Bartlomiej Zolnierkiewicz2007-08-201-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Move ide_in_drive_list() from ide-dma.c to ide-iops.c. * Add ivb_list[] table for listening early UDMA66 devices which don't conform to ATA4 standard wrt cable detection (bit14 is zero, only bit13 is valid) and use only device side cable detection for them since host side cable detection may be unreliable. * Add model "QUANTUM FIREBALLlct10 05" with firwmare "A03.0900" to the list (from Craig's bugreport). v2: * Improve kernel message basing on suggestion from Sergei. v3: * Don't print kernel message when no device side cable detection is done, plus some minor fixes. (Noticed by Sergei) Thanks to Craig for testing this patch. Cc: Craig Block <chblock3@yahoo.com> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
| * ide: config_drive_for_dma() fixesBartlomiej Zolnierkiewicz2007-08-201-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add DMA blacklist checking (->ide_dma_on check probably can go now). * Add ->atapi_dma flag checking and remove no longer needed ns87415_ide_dma_check() from ns87415 host driver. * Remove now needless __ide_dma_check() wrapper and symbol export. * Check drive->autodma instead of hwif->autodma (there should be no changes in behavior as all users of config_drive_for_dma() set both ->autodma flags). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | Merge branch 'master' of ↵Linus Torvalds2007-08-201-2/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: V4L/DVB (6028): Turn an unnecessary mdelay() into msleep(). V4L/DVB (6027): Get rid of an ill-behaved msleep in i2c write V4L/DVB (6026): Avoid powering up the camera on resume V4L/DVB (6016): get_dvb_firmware: update script for new location of tda10046 firmware V4L/DVB (5991): dvb-pll: Set minimum and maximum frequency properly V4L/DVB (5969): ivtv: report ivtv version in status log V4L/DVB (5967): ivtv: fix VIDIOC_S_FBUF:new OSD values where never set V4L/DVB (5968): videodev2.h: remove superfluous FBUF GLOBAL_INV_ALPHA support
| * | V4L/DVB (5968): videodev2.h: remove superfluous FBUF GLOBAL_INV_ALPHA supportHans Verkuil2007-08-201-2/+0
| |/ | | | | | | | | | | | | | | There is no need for a global inverted alpha capability since all the application has to do is to pass '255-alpha' as the global alpha value. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* | Merge branch 'fixes-2.6.23' of ↵Linus Torvalds2007-08-201-1/+11
|\ \ | |/ |/| | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc * 'fixes-2.6.23' of git://git.kernel.org/pub/scm/linux/kernel/git/galak/powerpc: [POWERPC] Fix 8xx compile failure [POWERPC] Fix FSL BookE machine check reporting [POWERPC] Fix interrupt routing and setup of ULI M1575 on FSL boards [POWERPC] Add interrupt resource for RTC CMOS driver
| * [POWERPC] Fix FSL BookE machine check reportingBecky Bruce2007-08-171-1/+11
| | | | | | | | | | | | | | | | | | | | Reserved MCSR bits on FSL BookE parts may have spurious values when mcheck occurs. Mask these off when printing the MCSR to avoid confusion. Also, get rid of the MCSR_GL_CI bit defined for e500 - this bit doesn't actually have any meaning. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | Fix <math-emu/soft-fp.h> tpyoAl Viro2007-08-181-1/+1
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | x86_64: Fix to keep watchdog disabled by default for i386/x86_64Daniel Gollub2007-08-182-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixed wrong expression which enabled watchdogs even if nmi_watchdog kernel parameter wasn't set. This regression got slightly introduced with commit b7471c6da94d30d3deadc55986cc38d1ff57f9ca. Introduced NMI_DISABLED (-1) which allows to switch the value of NMI_DEFAULT without breaking the APIC NMI watchdog code (again). Fixes: https://bugzilla.novell.com/show_bug.cgi?id=298084 http://bugzilla.kernel.org/show_bug.cgi?id=7839 And likely some more nmi_watchdog=0 related issues. Signed-off-by: Daniel Gollub <dgollub@suse.de> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | i386: Fix a couple busy loops in mach_wakecpu.h:wait_for_init_deassert()Satyam Sharma2007-08-182-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use cpu_relax() in the busy loops, as atomic_read() doesn't automatically imply volatility for i386 and x86_64. x86_64 doesn't have this issue because it open-codes the while loop in smpboot.c:smp_callin() itself that already uses cpu_relax(). For i386, however, smpboot.c:smp_callin() calls wait_for_init_deassert() which is buggy for mach-default and mach-es7000 cases. [ I test-built a kernel -- smp_callin() itself got inlined in its only callsite, smpboot.c:start_secondary() -- and the relevant piece of code disassembles to the following: 0xc1019704 <start_secondary+12>: mov 0xc144c4c8,%eax 0xc1019709 <start_secondary+17>: test %eax,%eax 0xc101970b <start_secondary+19>: je 0xc1019709 <start_secondary+17> init_deasserted (at 0xc144c4c8) gets fetched into %eax only once and then we loop over the test of the stale value in the register only, so these look like real bugs to me. With the fix below, this becomes: 0xc1019706 <start_secondary+14>: pause 0xc1019708 <start_secondary+16>: cmpl $0x0,0xc144c4c8 0xc101970f <start_secondary+23>: je 0xc1019706 <start_secondary+14> which looks nice and healthy. ] Thanks to Heiko Carstens for noticing this. Signed-off-by: Satyam Sharma <satyam@infradead.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6Linus Torvalds2007-08-181-0/+18
|\ \ | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6: sh64: arch/sh64/kernel/setup.c: duplicate include removal. sh64: arch/sh64/kernel/signal.c: duplicate include removal sh64: Add missing dma_sync_single_for_*().
| * | sh64: Add missing dma_sync_single_for_*().Paul Mundt2007-08-101-0/+18
| | | | | | | | | | | | | | | | | | Follow the sparc64 and sh change. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23Linus Torvalds2007-08-181-0/+19
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6.23: sh: remove extraneous ; on scif_sercon_putc wait loop sh: Add missing dma_sync_single_range_for_*(). sh: panic on machvec section misalignment. sh: Fix PTRACE_PEEKTEXT/PEEKDATA fallout from generic_ptrace_peekdata().
| * | | sh: Add missing dma_sync_single_range_for_*().Paul Mundt2007-08-101-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The b44 build uses these, caught by allmodconfig: drivers/net/b44.c: In function `b44_sync_dma_desc_for_cpu': drivers/net/b44.c:159: error: implicit declaration of function `dma_sync_single_range_for_cpu' Follow the sparc64 change and stub them in. Reported-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | | | Merge branch 'release' of ↵Linus Torvalds2007-08-186-4/+20
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Cross-compilation between e.g. i386 -> 64bit could break -> work around it [IA64] Enable early console for Ski simulator [IA64] forbid ptrace changes psr.ri to 3 [IA64] Failure to grow RBS [IA64] Fix processor_get_freq [IA64] SGI Altix : fix a force_interrupt bug on altix [IA64] Update arch/ia64/configs/* s/SLAB/SLUB/ [IA64] get back PT_IA_64_UNWIND program header [IA64] need NOTES in vmlinux.lds.S [IA64] make unwinder stop at last frame of the bootloader [IA64] Clean up CPE handler registration [IA64] Include Kconfig.preempt [IA64] SN2 needs platform specific irq_to_vector() function. [IA64] Use atomic64_read to read an atomic64_t. [IA64] disable irq's and check need_resched before safe_halt
| * | | | Cross-compilation between e.g. i386 -> 64bit could break -> work around itThomas Renninger2007-08-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adrian Bunk: scripts/mod/file2alias.c is compiled with HOSTCC and ensures that kernel_ulong_t is correct, but it can't cope with different padding on different architectures. Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | | [IA64] SN2 needs platform specific irq_to_vector() function.Kenji Kaneshige2007-08-134-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add base support for implementing platform_irq_to_vector(), and then use it on SN2. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Acked-by: John Keller <jpk@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | | [IA64] Use atomic64_read to read an atomic64_t.Andreas Schwab2007-08-131-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The routines ia64_atomic64_{add,sub} mistakenly use atomic_read() to grab the old value instead of using atomic64_read(). Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2007-08-182-5/+4
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: IB/mlx4: Incorrect semicolon after if statement mlx4_core: Wait 1 second after reset before accessing device IPoIB: Fix leak in ipoib_transport_dev_init() error path IB/mlx4: Fix opcode returned in RDMA read completion IB/srp: Add OUI for new Cisco targets IB/srp: Wrap OUI checking for workarounds in helper functions RDMA/cxgb3: Always call low level send function via cxgb3_ofld_send() IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.c IB: Include <linux/list.h> and <linux/rwsem.h> from <rdma/ib_verbs.h> IB: Include <linux/list.h> from <rdma/ib_mad.h> IB/mad: Fix address handle leak in mad_rmpp IB/mad: agent_send_response() should be void IB/mad: Fix memory leak in switch handling in ib_mad_recv_done_handler() IB/mad: Fix error path if response alloc fails in ib_mad_recv_done_handler() IB/sa: Don't need to check for default P_Key twice IB/core: Ignore membership bit in ib_find_pkey()
| * | | | | IB: Move the macro IB_UMEM_MAX_PAGE_CHUNK() to umem.cDotan Barak2007-08-031-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After moving the definition of struct ib_umem_chunk from ib_verbs.h to ib_umem.h there isn't any reason for the macro IB_UMEM_MAX_PAGE_CHUNK to stay in ib_verbs.h. Move the macro to umem.c, the only place where it is used. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | | | IB: Include <linux/list.h> and <linux/rwsem.h> from <rdma/ib_verbs.h>Dotan Barak2007-08-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ib_verbs.h uses struct list_head and rw_semaphore, so while the files <linux/list.h> and <linux/rwsem.h> seem to be pulled in indirectly by the other header files it includes, the right thing is to include those files directly. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
| * | | | | IB: Include <linux/list.h> from <rdma/ib_mad.h>Dotan Barak2007-08-031-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ib_mad.h uses struct list_head, so while linux/list.h seems to be pulled in indirectly by one of the headers it includes, the right thing is to include linux/list.h directly. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
* | | | | | Merge branch 'master' of ↵Linus Torvalds2007-08-186-4/+27
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 * 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6: [MATH-EMU]: Fix underflow exception reporting. [SPARC64]: Create a HWCAP_SPARC_N2 and report it to userspace on Niagara-2. [SPARC64]: SMP trampoline needs to avoid %tick_cmpr on sun4v too. [SPARC64]: Do not touch %tick_cmpr on sun4v cpus. [SPARC64]: Niagara-2 optimized copies. [SPARC64]: Allow userspace to get at the machine description. [SPARC32]: Remove superfluous 'kernel_end' alignment on sun4c. [SPARC32]: Fix bogus ramdisk image location check. [SPARC32]: Remove iommu from struct sbus_bus and use archdata like sparc64.
| * | | | | | [MATH-EMU]: Fix underflow exception reporting.David S. Miller2007-08-164-1/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The underflow exception cases were wrong. This is one weird area of ieee1754 handling in that the underflow behavior changes based upon whether underflow is enabled in the trap enable mask of the FPU control register. As a specific case the Sparc V9 manual gives us the following description: -------------------- If UFM = 0: Underflow occurs if a nonzero result is tiny and a loss of accuracy occurs. Tininess may be detected before or after rounding. Loss of accuracy may be either a denormalization loss or an inexact result. If UFM = 1: Underflow occurs if a nonzero result is tiny. Tininess may be detected before or after rounding. -------------------- What this amounts to in the packing case is if we go subnormal, we set underflow if any of the following are true: 1) rounding sets inexact 2) we ended up rounding back up to normal (this is the case where we set the exponent to 1 and set the fraction to zero), this should set inexact too 3) underflow is set in FPU control register trap-enable mask The initially discovered example was "DBL_MIN / 16.0" which incorrectly generated an underflow. It should not, unless underflow is set in the trap-enable mask of the FPU csr. Another example, "0x0.0000000000001p-1022 / 16.0", should signal both inexact and underflow. The cpu implementations and ieee1754 literature is very clear about this. This is case #2 above. However, if underflow is set in the trap enable mask, only underflow should be set and reported as a trap. That is handled properly by the prioritization logic in arch/sparc{,64}/math-emu/math.c:record_exception(). Based upon a report and test case from Jakub Jelinek. Signed-off-by: David S. Miller <davem@davemloft.net>
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