1. 06 12月, 2011 1 次提交
    • R
      PCI: defer enablement of SRIOV BARS · bbef98ab
      Ram Pai 提交于
      All the PCI BARs of a device are enabled when the device is enabled
      using pci_enable_device().  This unnecessarily enables SRIOV BARs of the
      device.
      
      On some platforms, which do not support SRIOV as yet, the
      pci_enable_device() fails to enable the device if its SRIOV BARs are not
      allocated resources correctly.
      
      The following patch fixes the above problem. The SRIOV BARs are now
      enabled when IOV capability of the device is enabled in sriov_enable().
      
      NOTE: Note, there is subtle change in the pci_enable_device() API.  Any
      driver that depends on SRIOV BARS to be enabled in pci_enable_device()
      can fail.
      
      The patch has been touch tested on power and x86 platform.
      Tested-by: NMichael Wang <wangyun@linux.vnet.ibm.com>
      Signed-off-by: NRam Pai <linuxram@us.ibm.com>
      Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
      bbef98ab
  2. 05 12月, 2011 1 次提交
    • L
      x86: Fix boot failures on older AMD CPU's · 8e8da023
      Linus Torvalds 提交于
      People with old AMD chips are getting hung boots, because commit
      bcb80e53 ("x86, microcode, AMD: Add microcode revision to
      /proc/cpuinfo") moved the microcode detection too early into
      "early_init_amd()".
      
      At that point we are *so* early in the booth that the exception tables
      haven't even been set up yet, so the whole
      
      	rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
      
      doesn't actually work: if the rdmsr does a GP fault (due to non-existant
      MSR register on older CPU's), we can't fix it up yet, and the boot fails.
      
      Fix it by simply moving the code to a slightly later point in the boot
      (init_amd() instead of early_init_amd()), since the kernel itself
      doesn't even really care about the microcode patchlevel at this point
      (or really ever: it's made available to user space in /proc/cpuinfo, and
      updated if you do a microcode load).
      Reported-tested-and-bisected-by: NLarry Finger <Larry.Finger@lwfinger.net>
      Tested-by: NBob Tracy <rct@gherkin.frus.com>
      Acked-by: NBorislav Petkov <borislav.petkov@amd.com>
      Cc: Ingo Molnar <mingo@elte.hu>
      Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      8e8da023
  3. 04 12月, 2011 1 次提交
    • K
      xen/pm_idle: Make pm_idle be default_idle under Xen. · e5fd47bf
      Konrad Rzeszutek Wilk 提交于
      The idea behind commit d91ee586 ("cpuidle: replace xen access to x86
      pm_idle and default_idle") was to have one call - disable_cpuidle()
      which would make pm_idle not be molested by other code.  It disallows
      cpuidle_idle_call to be set to pm_idle (which is excellent).
      
      But in the select_idle_routine() and idle_setup(), the pm_idle can still
      be set to either: amd_e400_idle, mwait_idle or default_idle.  This
      depends on some CPU flags (MWAIT) and in AMD case on the type of CPU.
      
      In case of mwait_idle we can hit some instances where the hypervisor
      (Amazon EC2 specifically) sets the MWAIT and we get:
      
        Brought up 2 CPUs
        invalid opcode: 0000 [#1] SMP
      
        Pid: 0, comm: swapper Not tainted 3.1.0-0.rc6.git0.3.fc16.x86_64 #1
        RIP: e030:[<ffffffff81015d1d>]  [<ffffffff81015d1d>] mwait_idle+0x6f/0xb4
        ...
        Call Trace:
         [<ffffffff8100e2ed>] cpu_idle+0xae/0xe8
         [<ffffffff8149ee78>] cpu_bringup_and_idle+0xe/0x10
        RIP  [<ffffffff81015d1d>] mwait_idle+0x6f/0xb4
         RSP <ffff8801d28ddf10>
      
      In the case of amd_e400_idle we don't get so spectacular crashes, but we
      do end up making an MSR which is trapped in the hypervisor, and then
      follow it up with a yield hypercall.  Meaning we end up going to
      hypervisor twice instead of just once.
      
      The previous behavior before v3.0 was that pm_idle was set to
      default_idle regardless of select_idle_routine/idle_setup.
      
      We want to do that, but only for one specific case: Xen.  This patch
      does that.
      
      Fixes RH BZ #739499 and Ubuntu #881076
      Reported-by: NStefan Bader <stefan.bader@canonical.com>
      Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      e5fd47bf
  4. 03 12月, 2011 6 次提交
    • L
      Merge branch 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · af968e29
      Linus Torvalds 提交于
      * 'usb-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits)
        usb: ftdi_sio: add PID for Propox ISPcable III
        Revert "xHCI: reset-on-resume quirk for NEC uPD720200"
        xHCI: fix bug in xhci_clear_command_ring()
        usb: gadget: fsl_udc: fix dequeuing a request in progress
        usb: fsl_mxc_udc.c: Remove compile-time dependency of MX35 SoC type
        usb: fsl_mxc_udc.c: Fix build issue by including missing header file
        USB: fsl_udc_core: use usb_endpoint_xfer_isoc to judge ISO XFER
        usb: udc: Fix gadget driver's speed check in various UDC drivers
        usb: gadget: fix g_serial regression
        usb: renesas_usbhs: fixup driver speed
        usb: renesas_usbhs: fixup gadget.dev.driver when udc_stop.
        usb: renesas_usbhs: fixup signal the driver that cable was disconnected
        usb: renesas_usbhs: fixup device_register timing
        usb: musb: PM: fix context save/restore in suspend/resume path
        USB: linux-cdc-acm.inf: add support for the acm_ms gadget
        EHCI : Fix a regression in the ISO scheduler
        xHCI: reset-on-resume quirk for NEC uPD720200
        USB: whci-hcd: fix endian conversion in qset_clear()
        USB: usb-storage: unusual_devs entry for Kingston DT 101 G2
        usb: option: add SIMCom SIM5218
        ...
      af968e29
    • L
      Merge branch 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · f9143eae
      Linus Torvalds 提交于
      * 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
        Staging: comedi: fix integer overflow in do_insnlist_ioctl()
        Revert "Staging: comedi: integer overflow in do_insnlist_ioctl()"
        Staging: comedi: integer overflow in do_insnlist_ioctl()
        Staging: comedi: fix signal handling in read and write
        Staging: comedi: fix mmap_count
        staging: comedi: fix oops for USB DAQ devices.
        staging: comedi: usbduxsigma: Fixed wrong range for the analogue channel.
        staging:rts_pstor:Complete scanning_done variable
        staging: usbip: bugfix for deadlock
      f9143eae
    • L
      Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs · ffb8fb54
      Linus Torvalds 提交于
      * 'for-linus' of git://oss.sgi.com/xfs/xfs:
        xfs: fix attr2 vs large data fork assert
        xfs: force buffer writeback before blocking on the ilock in inode reclaim
        xfs: validate acl count
      ffb8fb54
    • L
      7ed89aed
    • L
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · c2b5adb4
      Linus Torvalds 提交于
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        vmwgfx: integer overflow in vmw_kms_update_layout_ioctl()
        drm/radeon/kms: fix 2D tiling CS support on EG/CM
        drm/radeon/kms: fix scanout of 2D tiled buffers on EG/CM
        drm: Fix lack of CRTC disable for drm_crtc_helper_set_config(.fb=NULL)
        drm/radeon/kms: add some new pci ids
        drm/radeon/kms: Skip ACPI call to ATIF when possible
        drm/radeon/kms: Hide debugging message
        drm/radeon/kms: add some loop timeouts in pageflip code
        drm/nv50/disp: silence compiler warning
        drm/nouveau: fix oopses caused by clear being called on unpopulated ttms
        drm/nouveau: Keep RAMIN heap within the channel.
        drm/nvd0/disp: fix sor dpms typo, preventing dpms on in some situations
        drm/nvc0/gr: fix TP init for transform feedback offset queries
        drm/nouveau: add dumb ioctl support
      c2b5adb4
    • L
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 0efebaa7
      Linus Torvalds 提交于
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: hda - Fix S3/S4 problem on machines with VREF-pin mute-LED
        ALSA: hda_intel - revert a quirk that affect VIA chipsets
        ALSA: hda - Avoid touching mute-VREF pin for IDT codecs
        firmware: Sigma: Fix endianess issues
        firmware: Sigma: Skip header during CRC generation
        firmware: Sigma: Prevent out of bounds memory access
        ALSA: usb-audio - Support for Roland GAIA SH-01 Synthesizer
        ASoC: Supply dcs_codes for newer WM1811 revisions
        ASoC: Error out if we can't generate a LRCLK at all for WM8994
        ASoC: Correct name of Speyside Main Speaker widget
        ASoC: skip resume of soc-audio devices without codecs
        ASoC: cs42l51: Fix off-by-one for reg_cache_size
        ASoC: drop support for PlayPaq with WM8510
        ASoC: mpc8610: tell the CS4270 codec that it's the master
        ASoC: cs4720: use snd_soc_cache_sync()
        ASoC: SAMSUNG: Fix build error
        ASoC: max9877: Update register if either val or val2 is changed
        ASoC: Fix wrong define for AD1836_ADC_WORD_OFFSET
      0efebaa7
  5. 02 12月, 2011 21 次提交
  6. 01 12月, 2011 10 次提交