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  1. Jun 13, 2013
  2. Jun 01, 2013
    • Yinghai Lu's avatar
      x86: Fix adjust_range_size_mask calling position · 7de3d66b
      Yinghai Lu authored
      
      
      Commit
      
          8d57470d x86, mm: setup page table in top-down
      
      causes a kernel panic while setting mem=2G.
      
           [mem 0x00000000-0x000fffff] page 4k
           [mem 0x7fe00000-0x7fffffff] page 1G
           [mem 0x7c000000-0x7fdfffff] page 1G
           [mem 0x00100000-0x001fffff] page 4k
           [mem 0x00200000-0x7bffffff] page 2M
      
      for last entry is not what we want, we should have
           [mem 0x00200000-0x3fffffff] page 2M
           [mem 0x40000000-0x7bffffff] page 1G
      
      Actually we merge the continuous ranges with same page size too early.
      in this case, before merging we have
           [mem 0x00200000-0x3fffffff] page 2M
           [mem 0x40000000-0x7bffffff] page 2M
      after merging them, will get
           [mem 0x00200000-0x7bffffff] page 2M
      even we can use 1G page to map
           [mem 0x40000000-0x7bffffff]
      
      that will cause problem, because we already map
           [mem 0x7fe00000-0x7fffffff] page 1G
           [mem 0x7c000000-0x7fdfffff] page 1G
      with 1G page, aka [0x40000000-0x7fffffff] is mapped with 1G page already.
      During phys_pud_init() for [0x40000000-0x7bffffff], it will not
      reuse existing that pud page, and allocate new one then try to use
      2M page to map it instead, as page_size_mask does not include
      PG_LEVEL_1G. At end will have [7c000000-0x7fffffff] not mapped, loop
      in phys_pmd_init stop mapping at 0x7bffffff.
      
      That is right behavoir, it maps exact range with exact page size that
      we ask, and we should explicitly call it to map [7c000000-0x7fffffff]
      before or after mapping 0x40000000-0x7bffffff.
      Anyway we need to make sure ranges' page_size_mask correct and consistent
      after split_mem_range for each range.
      
      Fix that by calling adjust_range_size_mask before merging range
      with same page size.
      
      -v2: update change log.
      -v3: add more explanation why [7c000000-0x7fffffff] is not mapped, and
          it causes panic.
      
      Bisected-by: default avatar"Xie, ChanglongX" <changlongx.xie@intel.com>
      Bisected-by: default avatarYuanhan Liu <yuanhan.liu@linux.intel.com>
      Reported-and-tested-by: default avatarYuanhan Liu <yuanhan.liu@linux.intel.com>
      Signed-off-by: default avatarYinghai Lu <yinghai@kernel.org>
      Link: http://lkml.kernel.org/r/1370015587-20835-1-git-send-email-yinghai@kernel.org
      
      
      Cc: <stable@vger.kernel.org> v3.9
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      7de3d66b
  3. May 31, 2013
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · a93cb29a
      Linus Torvalds authored
      Pull drm fixes from Dave Airlie:
       "One qxl 32-bit warning fix, the rest is a bunch of radeon fixes from
        Alex for some issues we've been seeing."
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        drm/qxl: fix build warnings on 32-bit
        radeon: use max_bus_speed to activate gen2 speeds
        drm/radeon: narrow scope of Apple re-POST hack
        drm/radeon: don't check crtcs in card_posted() on cards without DCE
        drm/radeon: fix card_posted check for newer asics
        drm/radeon: fix typo in cu_per_sh on verde
        drm/radeon: UVD block on SUMO2 is the same as on SUMO
      a93cb29a
    • Dave Airlie's avatar
      drm/qxl: fix build warnings on 32-bit · 970fa986
      Dave Airlie authored
      
      
      Just the usual printk related warnings.
      
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      970fa986
    • Linus Torvalds's avatar
      Merge branch 'for-3.10' of git://linux-nfs.org/~bfields/linux · 4203afc3
      Linus Torvalds authored
      Pull nfsd fixes from Bruce Fields:
       "A couple minor fixes for the (new to 3.10) gss-proxy code.
      
        And one regression from user-namespace changes.  (XBMC clients were
        doing something admittedly weird--sending -1 gid's--but something that
        we used to allow.)"
      
      * 'for-3.10' of git://linux-nfs.org/~bfields/linux:
        svcrpc: fix failures to handle -1 uid's and gid's
        svcrpc: implement O_NONBLOCK behavior for use-gss-proxy
        svcauth_gss: fix error code in use_gss_proxy()
      4203afc3
    • Linus Torvalds's avatar
      Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 484b002e
      Linus Torvalds authored
      Pull x86 fixes from Peter Anvin:
      
       - Three EFI-related fixes
      
       - Two early memory initialization fixes
      
       - build fix for older binutils
      
       - fix for an eager FPU performance regression -- currently we don't
         allow the use of the FPU at interrupt time *at all* in eager mode,
         which is clearly wrong.
      
      * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86: Allow FPU to be used at interrupt time even with eagerfpu
        x86, crc32-pclmul: Fix build with older binutils
        x86-64, init: Fix a possible wraparound bug in switchover in head_64.S
        x86, range: fix missing merge during add range
        x86, efi: initial the local variable of DataSize to zero
        efivar: fix oops in efivar_update_sysfs_entries() caused by memory reuse
        efivarfs: Never return ENOENT from firmware again
      484b002e
    • Pekka Riikonen's avatar
      x86: Allow FPU to be used at interrupt time even with eagerfpu · 5187b28f
      Pekka Riikonen authored
      
      
      With the addition of eagerfpu the irq_fpu_usable() now returns false
      negatives especially in the case of ksoftirqd and interrupted idle task,
      two common cases for FPU use for example in networking/crypto.  With
      eagerfpu=off FPU use is possible in those contexts.  This is because of
      the eagerfpu check in interrupted_kernel_fpu_idle():
      
      ...
        * For now, with eagerfpu we will return interrupted kernel FPU
        * state as not-idle. TBD: Ideally we can change the return value
        * to something like __thread_has_fpu(current). But we need to
        * be careful of doing __thread_clear_has_fpu() before saving
        * the FPU etc for supporting nested uses etc. For now, take
        * the simple route!
      ...
       	if (use_eager_fpu())
       		return 0;
      
      As eagerfpu is automatically "on" on those CPUs that also have the
      features like AES-NI this patch changes the eagerfpu check to return 1 in
      case the kernel_fpu_begin() has not been said yet.  Once it has been the
      __thread_has_fpu() will start returning 0.
      
      Notice that with eagerfpu the __thread_has_fpu is always true initially.
      FPU use is thus always possible no matter what task is under us, unless
      the state has already been saved with kernel_fpu_begin().
      
      [ hpa: this is a performance regression, not a correctness regression,
        but since it can be quite serious on CPUs which need encryption at
        interrupt time I am marking this for urgent/stable. ]
      
      Signed-off-by: default avatarPekka Riikonen <priikone@iki.fi>
      Link: http://lkml.kernel.org/r/alpine.GSO.2.00.1305131356320.18@git.silcnet.org
      
      
      Cc: <stable@vger.kernel.org> v3.7+
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      5187b28f
    • Jan Beulich's avatar
      x86, crc32-pclmul: Fix build with older binutils · 2baad612
      Jan Beulich authored
      
      
      binutils prior to 2.18 (e.g. the ones found on SLE10) don't support
      assembling PEXTRD, so a macro based approach like the one for PCLMULQDQ
      in the same file should be used.
      
      This requires making the helper macros capable of recognizing 32-bit
      general purpose register operands.
      
      [ hpa: tagging for stable as it is a low risk build fix ]
      
      Signed-off-by: default avatarJan Beulich <jbeulich@suse.com>
      Link: http://lkml.kernel.org/r/51A6142A02000078000D99D8@nat28.tlf.novell.com
      
      
      Cc: Alexander Boyko <alexander_boyko@xyratex.com>
      Cc: Herbert Xu <herbert@gondor.apana.org.au>
      Cc: Huang Ying <ying.huang@intel.com>
      Cc: <stable@vger.kernel.org> v3.9
      Signed-off-by: default avatarH. Peter Anvin <hpa@linux.intel.com>
      2baad612
    • Linus Torvalds's avatar
      Merge tag 'stable/for-linus-3.10-rc3-tag' of... · 3655b22d
      Linus Torvalds authored
      Merge tag 'stable/for-linus-3.10-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
      
      Pull Xen fixes from Konrad Rzeszutek Wilk:
       - Use proper error paths
       - Clean up APIC IPI usage (incorrect arguments)
       - Delay XenBus frontend resume is backend (xenstored) is not running
       - Fix build error with various combinations of CONFIG_
      
      * tag 'stable/for-linus-3.10-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
        xenbus_client.c: correct exit path for xenbus_map_ring_valloc_hvm
        xen-pciback: more uses of cached MSI-X capability offset
        xen: Clean up apic ipi interface
        xenbus: save xenstore local status for later use
        xenbus: delay xenbus frontend resume if xenstored is not running
        xmem/tmem: fix 'undefined variable' build error.
      3655b22d
    • Jean-Christophe PLAGNIOL-VILLARD's avatar
      MAINTAINERS: Framebuffer Layer maintainers update · 5489e948
      Jean-Christophe PLAGNIOL-VILLARD authored
      
      
      Tomi and I will now take care of the Framebuffer Layer
      
      The git tree is now on kernel.org
      
      Signed-off-by: default avatarJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
      Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
      Cc: Olof Johansson <olof@lixom.net>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Cc: Arnd Bergmann <arnd@arndb.de>
      Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
      Cc: linux-fbdev@vger.kernel.org
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      5489e948
    • Linus Torvalds's avatar
      Merge tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 5c1dfc82
      Linus Torvalds authored
      Pull sound updates from Takashi Iwai:
       "Again very calm updates at this time.
      
        All small fixes for individual drivers, mostly ASoC codecs, in
        addition to soc-compress fix for capture streams which is safe to
        apply as there is no in-tree users yet."
      
      * tag 'sound-3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ASoC: cs42l52: fix default value for MASTERA_VOL.
        ASoC: wm8994: check for array index returned
        ASoC: wm8994: Fix reporting of accessory removal on WM8958
        ASoC: wm8994: use the correct pointer to get the control value
        ASoC: wm5110: Correct DSP4R Mixer control name
        ALSA: usb-6fire: Modify firmware version check
        ASoC: cs42l52: fix master playback mute mask.
        ASoC: cs42l52: fix bogus shifts in "Speaker Volume" and "PCM Mixer Volume" controls.
        ASoC: cs42l52: microphone bias is controlled by IFACE_CTL2 register.
        ASoC: davinci: fix sample rotation
        ASoC: wm5110: Add missing speaker initialisation
        ASoC: soc-compress: Send correct stream event for capture start
        ASoC: max98090: request IRQF_ONESHOT interrupt
      5c1dfc82
  4. May 30, 2013
  5. May 29, 2013