1. 26 Nov, 2007 20 commits
    • Linus Torvalds's avatar
      Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 · 6b410160
      Linus Torvalds authored
      * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (39 commits)
        ACPI: EC: Workaround for optimized controllers (version 3)
        ACPI: EC: use printk_ratelimit(), add some DEBUG mode messages
        Revert "ACPI: EC: Workaround for optimized controllers"
        ACPI: fix two IRQ8 issues in IOAPIC mode
        ACPI: Add missing spaces to printk format
        cpuidle: fix HP nx6125 regression
        cpuidle: add sched_clock_idle_[sleep|wakeup]_event() hooks
        cpuidle: fix C3 for no bus-master control case
        ACPI: thinkpad-acpi: fix oops when a module parameter has no value
        Revert "Fix very high interrupt rate for IRQ8 (rtc) unless pnpacpi=off"
        ACPI: EC: Don't init EC early if it has no _INI
        Revert "acpi: make ACPI_PROCFS default to y"
        Revert "ACPI: add documentation for deprecated /proc/acpi/battery in ACPI_PROCFS"
        ACPI: Split out control for /proc/acpi entries from battery, ac, and sbs.
        ACPI: Video: Increase buffer size for writes to brightness proc file.
        ACPI: EC: Workaround for optimized controllers
        ACPI: SBS: Fix retval warning
        ACPI: Enable MSR (FixedHW) support for T-States
        ACPI: Get throttling info from BIOS only after evaluating _PDC
        ACPI: Use _TSS for throttling control, when present. Add error checks.
        ...
      6b410160
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6 · 9ccc2362
      Linus Torvalds authored
      * 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
        [S390] cio: Register/unregister subchannels only from kslowcrw.
        [S390] Add missing die_notifier() call to die().
        [S390] Fix memory detection.
        [S390] Explicitly code allocpercpu calls in iucv
        [S390] Dont overwrite lowcores on smp_send_stop().
        [S390] Optimize storage key handling for anonymous pages
        [S390] Fix kernel preemption.
        [S390] appldata: remove unused binary sysctls.
        [S390] cmm: remove unused binary sysctls.
        [S390] Fix irq tracing and lockdep_sys_exit calls.
        [S390] magic sysrq: check for in_atomic before doing an console_unblank
        [S390] cio: change device sense procedure to work with pav aliases
      9ccc2362
    • Linus Torvalds's avatar
      Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc · da457d4b
      Linus Torvalds authored
      * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (27 commits)
        [POWERPC] 83xx: Update mpc8349emitx(gp) defconfig for USB
        [POWERPC] 83xx: Update mpc832x_rdb_defconfig to enable MMC-over-SPI
        [POWERPC] 83xx: MPC832x RDB - remove spidev stub, use mmc_spi
        [POWERPC] 8xxx: MDS board RTC fixes
        [POWERPC] Fix 8xx build breakage due to _tlbie changes
        [POWERPC] Fix device tree interrupt map for Freescale ULI1575 boards
        [POWERPC] Fix possible division by zero in scaled time accounting
        [POWERPC] spufs: Fix context destroy vs /spu readdir race
        [POWERPC] Fix RTAS os-term usage on kernel panic
        [POWERPC] 83xx: Handle mpc8360 rev. 2.1 RGMII timing erratum
        [POWERPC] Document rgmii-rxid and rgmii-txid phy-connection-types
        [POWERPC] 83xx: Fix 2nd UCC entry in mpc832x_mds.dts
        [POWERPC] 83xx: mpc832x mds: Fix board PHY reset code
        [POWERPC] Fix potential NULL dereference
        [POWERPC] vdso: Fixes for cache block sizes
        [POWERPC] pasemi: Don't reset mpic at boot
        [POWERPC] Fix kmalloc alignment on non-coherent DMA platforms
        [POWERPC] Fix build failure on legacy iSeries
        [POWERPC] 4xx: Use virtual PVR value to init FPU on arch/ppc 440EP
        [POWERPC] 4xx: UIC add mask_ack callback
        ...
      da457d4b
    • Karsten Keil's avatar
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus · 552d2f84
      Linus Torvalds authored
      * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
        [MIPS] vpe: Add missing "space"
        [MIPS] Compliment va_start() with va_end().
        [MIPS] IP22: Fix broken eeprom access by using __raw_readl/__raw_writel
        [MIPS] IP22: Fix broken EISA interrupt setup by switching to generic i8259
        [MIPS] 64-bit Sibyte kernels need DMA32.
        [MIPS] Only build r4k clocksource for systems that work ok with it.
        [MIPS] Handle R4000/R4400 mfc0 from count register.
        [MIPS] Fix possible hang in LL/SC futex loops.
        [MIPS] Fix context DSP context / TLS pointer switching bug for new threads.
        [MIPS] IP32: More interrupt renumbering fixes.
        [MIPS] time: MIPSsim's plat_time_init doesn't need to be irq safe.
        [MIPS] time: Fix negated condition in cevt-r4k driver.
        [MIPS] Fix pcspeaker build.
      552d2f84
    • Linus Torvalds's avatar
      Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa · 09cfd929
      Linus Torvalds authored
      * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/perex/alsa:
        [ALSA] version 1.0.15
        [ALSA] emu10k1 - Check value ranges in ctl callbacks
        [ALSA] emu10k1: Add mixer controls parameter checking.
        [ALSA] fix private data pointer calculation in CS4270 driver
        [ALSA] portman2x4 - Fix probe error
        [ALSA] ca0106 - Fix write proc assignment
        [ALSA] s3c2443-ac97: compilation fix
        [ALSA] hda-codec - Revert volume knob controls in STAC codecs
        [ALSA] ca0106 - Check value range in ctl callbacks
        [ALSA] hda-codec - Check PINCAP only for PIN widgets
        [ALSA] mpu401: fix recursive locking in timer
        [ALSA] cmipci: fix FLINKON/OFF bits
        [ALSA] hda-codec - Disable shared stream on AD1986A
      09cfd929
    • Andreas Herrmann's avatar
      x86: correctly set UTS_MACHINE for "make ARCH=x86" · 8c6531f7
      Andreas Herrmann authored
      For a kernel built with "make ARCH=x86" the following system
      information is displayed when running the new kernel
      
          $ uname -m
          x86
      
      On some i386 systems (e.g. K7) we even have the following information
      
          $ uname -m
          x66
      
      This is weird. The usual information for "uname -m" should be "x86_64"
      on 64-bit and "i386" or "i686" on 32-bit.
      
      This patch fixes the issue by setting UTS_MACHINE to "i386" for 32-bit
      kernel builds and to "x86_64" for 64-bit kernel builds. I.e., "x86"
      won't be used for UTS_MACHINE anymore.
      
      Cc: Thomas Gleixner <tglx@linutronix.de>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: "H. Peter Anvin" <hpa@zytor.com>
      Acked-by: default avatarSam Ravnborg <sam@ravnborg.org>
      Signed-off-by: default avatarAndreas Herrmann <aherrman@arcor.de>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8c6531f7
    • Joe Perches's avatar
      [MIPS] vpe: Add missing "space" · b1e3afa0
      Joe Perches authored
      Signed-off-by: default avatarJoe Perches <joe@perches.com>
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      b1e3afa0
    • Richard Knutsson's avatar
    • Thomas Bogendoerfer's avatar
    • Thomas Bogendoerfer's avatar
    • Ralf Baechle's avatar
      [MIPS] 64-bit Sibyte kernels need DMA32. · cce335ae
      Ralf Baechle authored
      Sibyte SOCs only have 32-bit PCI.  Due to the sparse use of the address
      space only the first 1GB of memory is mapped at physical addresses
      below 1GB.  If a system has more than 1GB of memory 32-bit DMA will
      not be able to reach all of it.
      
      For now this patch is good enough to keep Sibyte users happy but it seems
      eventually something like swiotlb will be needed for Sibyte.
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      cce335ae
    • Ralf Baechle's avatar
      [MIPS] Only build r4k clocksource for systems that work ok with it. · 940f6b48
      Ralf Baechle authored
      In particular as-is it's not suited for multicore and mutiprocessors
      systems where there is on guarantee that the counter are synchronized
      or running from the same clock at all.  This broke Sibyte and probably
      others since the "[MIPS] Handle R4000/R4400 mfc0 from count register."
      commit.
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      940f6b48
    • Ralf Baechle's avatar
      [MIPS] Handle R4000/R4400 mfc0 from count register. · 5aa85c9f
      Ralf Baechle authored
      The R4000 and R4400 have an errata where if the cp0 count register is read
      in the exact moment when it matches the compare register no interrupt will
      be generated.
      
      This bug may be triggered if the cp0 count register is being used as
      clocksource and the compare interrupt as clockevent.  So a simple
      workaround is to avoid using the compare for both facilities on the
      affected CPUs.
      
      This is different from the workaround suggested in the old errata documents;
      at some opportunity probably the official version should be implemented
      and tested.  Another thing to find out is which processor versions
      exactly are affected.  I only have errata documents upto R4400 V3.0
      available so for the moment the code treats all R4000 and R4400 as broken.
      
      This is potencially a problem for some machines that have no other decent
      clocksource available; this workaround will cause them to fall back to
      another clocksource, worst case the "jiffies" source.
      5aa85c9f
    • Ralf Baechle's avatar
      [MIPS] Fix possible hang in LL/SC futex loops. · 0f67e90e
      Ralf Baechle authored
      The LL / SC loops in __futex_atomic_op() have the usual fixups necessary
      for memory acccesses to userspace from kernel space installed:
      
              __asm__ __volatile__(
              "       .set    push                            \n"
              "       .set    noat                            \n"
              "       .set    mips3                           \n"
              "1:     ll      %1, %4  # __futex_atomic_op     \n"
              "       .set    mips0                           \n"
              "       " insn  "                               \n"
              "       .set    mips3                           \n"
              "2:     sc      $1, %2                          \n"
              "       beqz    $1, 1b                          \n"
              __WEAK_LLSC_MB
              "3:                                             \n"
              "       .set    pop                             \n"
              "       .set    mips0                           \n"
              "       .section .fixup,\"ax\"                  \n"
              "4:     li      %0, %6                          \n"
              "       j       2b                              \n"	<-----
              "       .previous                               \n"
              "       .section __ex_table,\"a\"               \n"
              "       "__UA_ADDR "\t1b, 4b                    \n"
              "       "__UA_ADDR "\t2b, 4b                    \n"
              "       .previous                               \n"
              : "=r" (ret), "=&r" (oldval), "=R" (*uaddr)
              : "0" (0), "R" (*uaddr), "Jr" (oparg), "i" (-EFAULT)
              : "memory");
      
      The branch at the end of the fixup code, it goes back to the SC
      instruction, no matter if the fault was first taken by the LL or SC
      instruction resulting in an endless loop which will only terminate if
      the address become valid again due to another thread setting up an
      accessible mapping and the CPU happens to execute the SC instruction
      successfully which due to the preceeding ERET instruction of the fault
      handler would only happen if UNPREDICTABLE instruction behaviour of the
      SC instruction without a preceeding LL happens to favor that outcome.
      But normally processes are nice, pass valid arguments and we were just
      getting away with this.
      
      Thanks to Kaz Kylheku <kaz@zeugmasystems.com> for providing the original
      report and a test case.
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      0f67e90e
    • Ralf Baechle's avatar
      [MIPS] Fix context DSP context / TLS pointer switching bug for new threads. · 07500b0d
      Ralf Baechle authored
      A new born thread starts execution not in schedule but rather in
      ret_from_fork which results in it bypassing the part of the code to
      load a new context written in C which are the DSP context and the
      userlocal register which Linux uses for the TLS pointer.  Frequently
      we were just getting away with this bug for a number of reasons:
      
       o Real world application scenarios are very unlikely to use clone or fork
         in blocks of DSP code.
       o Linux by default runs the child process right after the fork, so the
         child by luck will find all the right context in the DSP and userlocal
         registers.
       o So far the rdhwr instruction was emulated on all hardware so userlocal
         wasn't getting referenced at all and the emulation wasn't suffering
         from the issue since it gets it's value straight from the thread's
         thread_info.
      
      Fixed by moving the code to load the context from switch_to() to
      finish_arch_switch which will be called by newborn and old threads.
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      07500b0d
    • Ralf Baechle's avatar
      98ce4721
    • Ralf Baechle's avatar
      [MIPS] time: MIPSsim's plat_time_init doesn't need to be irq safe. · 526a6770
      Ralf Baechle authored
      It's running early during the bootup process so interrupts are still off.
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      526a6770
    • Ralf Baechle's avatar
      aea68639
    • Ralf Baechle's avatar
      [MIPS] Fix pcspeaker build. · cfb6f260
      Ralf Baechle authored
      Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
      cfb6f260
  2. 20 Nov, 2007 20 commits