1. 16 Mar, 2012 2 commits
    • John Stultz's avatar
      time: Fix change_clocksource locking · f695cf94
      John Stultz authored
      change_clocksource() fails to grab locks or call timekeeping_update(),
      which leaves a race window for time inconsistencies.
      
      This adds proper locking and a call to timekeeping_update() to fix this.
      
      CC: Andy Lutomirski <luto@amacapital.net>
      CC: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
      f695cf94
    • John Stultz's avatar
      time: x86: Fix race switching from vsyscall to non-vsyscall clock · a939e817
      John Stultz authored
      When switching from a vsyscall capable to a non-vsyscall capable
      clocksource, there was a small race, where the last vsyscall
      gettimeofday before the switch might return a invalid time value
      using the new non-vsyscall enabled clocksource values after the
      switch is complete.
      
      This is due to the vsyscall code checking the vclock_mode once
      outside of the seqcount protected section. After it reads the
      vclock mode, it doesn't re-check that the sampled clock data
      that is obtained in the seqcount critical section still matches.
      
      The fix is to sample vclock_mode inside the protected section,
      and as long as it isn't VCLOCK_NONE, return the calculated
      value. If it has changed and is now VCLOCK_NONE, fall back
      to the syscall gettime calculation.
      
      v2:
        * Cleanup checks as suggested by tglx
        * Also fix same issue present in gettimeofday path
      
      CC: Andy Lutomirski <luto@amacapital.net>
      CC: Thomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
      a939e817
  2. 15 Mar, 2012 2 commits
  3. 06 Mar, 2012 2 commits
  4. 27 Feb, 2012 1 commit
  5. 22 Feb, 2012 2 commits
    • Ingo Molnar's avatar
      clocksource: scx200_hrt: Fix the build · 10ea9d6f
      Ingo Molnar authored
      This commit:
      
        12d6d412: clocksource: scx200_hrt: Convert scx200 to use clocksource_register_hz
      
      Breaks the build on x86-32:
      
        drivers/clocksource/scx200_hrt.c: In function ‘init_hrt_clocksource’:
        drivers/clocksource/scx200_hrt.c:95:0: error: unterminated argument list invoking macro "pr_info"
        drivers/clocksource/scx200_hrt.c:84:2: error: ‘pr_info’ undeclared (first use in this function)
      
      It could not possibly have been build tested, because it had this mismerge:
      
      	pr_info("enabling scx200 high-res timer (%s MHz +%d ppm)\n",
      	printk(KERN_INFO "enabling scx200 high-res timer (%s MHz +%d ppm)\n",
      		mhz27 ? "27":"1", ppm);
      
      Cc: Jim Cromie <jim.cromie@gmail.com>
      Cc: John Stultz <john.stultz@linaro.org>
      Link: http://lkml.kernel.org/n/tip-jceb26fns5w7tv8edlivhxpa@git.kernel.orgSigned-off-by: default avatarIngo Molnar <mingo@elte.hu>
      10ea9d6f
    • Suresh Siddha's avatar
      x86/tsc: Reduce the TSC sync check time for core-siblings · b0e5c779
      Suresh Siddha authored
      For each logical CPU that is coming online, we spend 20msec for
      checking the TSC synchronization. And as this is done
      sequentially for each logical CPU boot, this time gets added up
      depending on the number of logical CPU's supported by the
      platform.
      
      Minimize this by using the socket topology information.
      
      If the target CPU coming online doesn't have any of its
      core-siblings online, a timeout of 20msec will be used for the
      TSC-warp measurement loop. Otherwise a smaller timeout of 2msec
      will be used, as we have some information about this socket
      already (and this information grows as we have more and more
      logical-siblings in that socket).
      
      Ideally we should be able to skip the TSC sync check on the
      other core-siblings, if the first logical CPU in a socket passed
      the sync test. But as the TSC is per-logical CPU and can
      potentially be modified wrongly by the bios before the OS boot,
      TSC sync test for smaller duration should be able to catch such
      errors. Also this will catch the condition where all the cores
      in the socket doesn't get reset at the same time.
      
      For example, with this modification, time spent in TSC sync
      checks on a 4 socket 10-core with HT system gets reduced from
      1580msec to 212msec.
      Signed-off-by: default avatarSuresh Siddha <suresh.b.siddha@intel.com>
      Acked-by: default avatarArjan van de Ven <arjan@linux.intel.com>
      Acked-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Jack Steiner <steiner@sgi.com>
      Cc: venki@google.com
      Cc: Linus Torvalds <torvalds@linux-foundation.org>
      Cc: Andrew Morton <akpm@linux-foundation.org>
      Link: http://lkml.kernel.org/r/1328581940.29790.20.camel@sbsiddha-desk.sc.intel.comSigned-off-by: default avatarIngo Molnar <mingo@elte.hu>
      b0e5c779
  6. 15 Feb, 2012 7 commits
  7. 14 Feb, 2012 24 commits
    • Linus Torvalds's avatar
      Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator · 7ada1dd6
      Linus Torvalds authored
      One small bug fix from Axel plus a fix for a build failure in unrealistic
      but commonly built configs which for some reason manage to survive for
      an awfully long time in -next without any reports.
      
      * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
        regulator: Fix getting voltage in max8649_enable_time()
        regulator: Fix mc13xxx regulator modular build (again)
      7ada1dd6
    • Linus Torvalds's avatar
      Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc · ebf4bcbd
      Linus Torvalds authored
      Quoth BenH:
       "Here are a few powerpc fixes for 3.3, all pretty trivial.  I also
        added the patch to define GET_IP/SET_IP so we can use some more
        asm-generic goodness."
      
      * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
        powerpc/pseries/eeh: Fix crash when error happens during device probe
        powerpc/pseries: Fix partition migration hang in stop_topology_update
        powerpc/powernv: Disable interrupts while taking phb->lock
        powerpc: Fix WARN_ON in decrementer_check_overflow
        powerpc/wsp: Fix IRQ affinity setting
        powerpc: Implement GET_IP/SET_IP
        powerpc/wsp: Permanently enable PCI class code workaround
      ebf4bcbd
    • Linus Torvalds's avatar
      Merge tag 'mmc-fixes-for-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc · 8b36ac50
      Linus Torvalds authored
      MMC fixes for 3.3-rc4:
       * The most visible fix here is against a regression introduced in 3.3-rc1
         that ran cards in Ultra High Speed mode even when they failed to initialize
         in that mode, leading to lower-speed cards failing to mount.
       * A lockdep warning introduced in 3.3-rc1 is fixed.
       * Various other small driver fixes, most notably for a NULL dereference
         when using highmem with dw_mmc.
      
      * tag 'mmc-fixes-for-3.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
        mmc: dw_mmc: Fix PIO mode with support of highmem
        mmc: atmel-mci: save and restore sdioirq when soft reset is performed
        mmc: block: Init ro_lock sysfs attr to fix lockdep warnings
        mmc: sh_mmcif: fix late delayed work initialisation
        mmc: tmio_mmc: fix card eject during IO with DMA
        mmc: core: Fix comparison issue in mmc_compare_ext_csds
        mmc: core: Fix PowerOff Notify suspend/resume
        mmc: sdhci-pci: set Medfield SDIO as non-removable
        mmc: core: add the capability for broken voltage
        mmc: core: Fix low speed mmc card detection failure
        mmc: esdhc: set the timeout to the max value
        mmc: esdhc: add PIO mode support
        mmc: core: Ensure clocks are always enabled before host interaction
        mmc: of_mmc_spi: fix little endian support
        mmc: core: UHS sdio card that fails should not exceed 50MHz
        mmc: esdhc: fix errors when booting kernel on Freescale eSDHC version 2.3
      8b36ac50
    • Linus Torvalds's avatar
      Merge tag 'stable/for-linus-fixes-3.3-rc3' of... · 694ce18e
      Linus Torvalds authored
      Merge tag 'stable/for-linus-fixes-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
      
      Two fixes for VCPU offlining; One to fix the string format exposed
      by the xen-pci[front|back] to conform to the one used in majority of
      PCI drivers; Two fixes to make the code more resilient to invalid
      configurations.
      Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
      
      * tag 'stable/for-linus-fixes-3.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
        xenbus_dev: add missing error check to watch handling
        xen/pci[front|back]: Use %d instead of %1x for displaying PCI devfn.
        xen pvhvm: do not remap pirqs onto evtchns if !xen_have_vector_callback
        xen/smp: Fix CPU online/offline bug triggering a BUG: scheduling while atomic.
        xen/bootup: During bootup suppress XENBUS: Unable to read cpu state
      694ce18e
    • Linus Torvalds's avatar
      Merge tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound · 13d26193
      Linus Torvalds authored
      sound fixes for 3.3-rc4
      
      Basically all small fixes suited as rc4: a few HD-audio regression fixes,
      a stable fix for an old Dell laptop with intel8x0, and a simple fix for
      ASoC fsi.
      
      * tag 'sound-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
        ALSA: intel8x0: Fix default inaudible sound on Gateway M520
        ALSA: hda - Fix silent speaker output on Acer Aspire 6935
        ALSA: hda - Fix initialization of secondary capture source on VT1705
        ASoC: fsi: fixup fsi_pointer() calculation method
        ALSA: hda - Fix mute-LED VREF value for new HP laptops
      13d26193
    • Daniel T Chen's avatar
      ALSA: intel8x0: Fix default inaudible sound on Gateway M520 · 27c3afe6
      Daniel T Chen authored
      BugLink: https://bugs.launchpad.net/bugs/930842
      
      The reporter states that audio is inaudible by default without muting
      'External Amplifier'. Add a quirk to handle his SSID so that changing
      the control is not necessary.
      Reported-and-tested-by: default avatarBenjamin Carlson <elderbubba0810@gmail.com>
      Cc: <stable@kernel.org>
      Signed-off-by: default avatarDaniel T Chen <crimsun@ubuntu.com>
      Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      27c3afe6
    • Takashi Iwai's avatar
      Merge tag 'asoc-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus · 675c67af
      Takashi Iwai authored
      A simple fix from Morimoto-san for the pointer() operation in the FSI
      driver.
      675c67af
    • Linus Torvalds's avatar
      Merge git://git.samba.org/sfrench/cifs-2.6 · ce5afed9
      Linus Torvalds authored
      * git://git.samba.org/sfrench/cifs-2.6:
        cifs: don't return error from standard_receive3 after marking response malformed
        cifs: request oplock when doing open on lookup
        cifs: fix error handling when cifscreds key payload is an error
      ce5afed9
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · ca81a621
      Linus Torvalds authored
      This updates the sha512 fix so that it doesn't cause excessive stack
      usage on i386.  This is done by reverting to the original code, and
      avoiding the W duplication by moving its initialisation into the loop.
      
      As the underlying code is in fact the one that we have used for years,
      I'm pushing this now instead of postponing to the next cycle.
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
        crypto: sha512 - Avoid stack bloat on i386
        crypto: sha512 - Use binary and instead of modulus
      ca81a621
    • Thadeu Lima de Souza Cascardo's avatar
      powerpc/pseries/eeh: Fix crash when error happens during device probe · 778a785f
      Thadeu Lima de Souza Cascardo authored
      EEH may happen during a PCI driver probe. If the driver is trying to
      access some register in a loop, the EEH code will try to print the
      driver name. But the driver pointer in struct pci_dev is not set until
      probe returns successfully.
      
      Use a function to test if the device and the driver pointer is NULL
      before accessing the driver's name.
      Signed-off-by: default avatarThadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      778a785f
    • Brian King's avatar
      powerpc/pseries: Fix partition migration hang in stop_topology_update · 444080d1
      Brian King authored
      This fixes a hang that was observed during live partition migration.
      Since stop_topology_update must not be called from an interrupt
      context, call it earlier in the migration process. The hang observed
      can be seen below:
      
      WARNING: at kernel/timer.c:1011
      Modules linked in: ip6t_LOG xt_tcpudp xt_pkttype ipt_LOG xt_limit ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_raw xt_NOTRACK ipt_REJECT xt_state iptable_raw iptable_filter ip6table_mangle nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables ip6table_filter ip6_tables x_tables ipv6 fuse loop ibmveth sg ext3 jbd mbcache raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid10 raid1 raid0 scsi_dh_alua scsi_dh_rdac scsi_dh_hp_sw scsi_dh_emc dm_round_robin dm_multipath scsi_dh sd_mod crc_t10dif ibmvfc scsi_transport_fc scsi_tgt scsi_mod dm_snapshot dm_mod
      NIP: c0000000000c52d8 LR: c00000000004be28 CTR: 0000000000000000
      REGS: c00000005ffd77d0 TRAP: 0700   Not tainted  (3.2.0-git-00001-g07d106d0)
      MSR: 8000000000021032 <ME,CE,IR,DR>  CR: 48000084  XER: 00000001
      CFAR: c00000000004be20
      TASK = c00000005ec78860[0] 'swapper/3' THREAD: c00000005ec98000 CPU: 3
      GPR00: 0000000000000001 c00000005ffd7a50 c000000000fbbc98 c000000000ec8340
      GPR04: 00000000282a0020 0000000000000000 0000000000004000 0000000000000101
      GPR08: 0000000000000012 c00000005ffd4000 0000000000000020 c000000000f3ba88
      GPR12: 0000000000000000 c000000007f40900 0000000000000001 0000000000000004
      GPR16: 0000000000000001 0000000000000000 0000000000000000 c000000001022310
      GPR20: 0000000000000001 0000000000000000 0000000000200200 c000000001029e14
      GPR24: 0000000000000000 0000000000000001 0000000000000040 c00000003f74bc80
      GPR28: c00000003f74bc84 c000000000f38038 c000000000f16b58 c000000000ec8340
      NIP [c0000000000c52d8] .del_timer_sync+0x28/0x60
      LR [c00000000004be28] .stop_topology_update+0x20/0x38
      Call Trace:
      [c00000005ffd7a50] [c00000005ec78860] 0xc00000005ec78860 (unreliable)
      [c00000005ffd7ad0] [c00000000004be28] .stop_topology_update+0x20/0x38
      [c00000005ffd7b40] [c000000000028378] .__rtas_suspend_last_cpu+0x58/0x260
      [c00000005ffd7bf0] [c0000000000fa230] .generic_smp_call_function_interrupt+0x160/0x358
      [c00000005ffd7cf0] [c000000000036ec8] .smp_ipi_demux+0x88/0x100
      [c00000005ffd7d80] [c00000000005c154] .icp_hv_ipi_action+0x5c/0x80
      [c00000005ffd7e00] [c00000000012a088] .handle_irq_event_percpu+0x100/0x318
      [c00000005ffd7f00] [c00000000012e774] .handle_percpu_irq+0x84/0xd0
      [c00000005ffd7f90] [c000000000022ba8] .call_handle_irq+0x1c/0x2c
      [c00000005ec9ba20] [c00000000001157c] .do_IRQ+0x22c/0x2a8
      [c00000005ec9bae0] [c0000000000054bc] hardware_interrupt_entry+0x18/0x1c
      Exception: 501 at .cpu_idle+0x194/0x2f8
          LR = .cpu_idle+0x194/0x2f8
      [c00000005ec9bdd0] [c000000000017e58] .cpu_idle+0x188/0x2f8 (unreliable)
      [c00000005ec9be90] [c00000000067ec18] .start_secondary+0x3e4/0x524
      [c00000005ec9bf90] [c0000000000093e8] .start_secondary_prolog+0x10/0x14
      Instruction dump:
      ebe1fff8 4e800020 fbe1fff8 7c0802a6 f8010010 7c7f1b78 f821ff81 78290464
      80090014 5400019e 7c0000d0 78000fe0 <0b000000> 4800000c 7c210b78 7c421378
      Signed-off-by: default avatarBrian King <brking@linux.vnet.ibm.com>
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      444080d1
    • Michael Ellerman's avatar
      powerpc/powernv: Disable interrupts while taking phb->lock · f1c853b5
      Michael Ellerman authored
      We need to disable interrupts when taking the phb->lock. Otherwise
      we could deadlock with pci_lock taken from an interrupt.
      Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      f1c853b5
    • Benjamin Herrenschmidt's avatar
      powerpc: Fix WARN_ON in decrementer_check_overflow · 6fe5f5f3
      Benjamin Herrenschmidt authored
      We use __get_cpu_var() which triggers a false positive warning
      in smp_processor_id() thinking interrupts are enabled (at this
      point, they are soft-enabled but hard-disabled).
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      6fe5f5f3
    • Benjamin Herrenschmidt's avatar
      powerpc/wsp: Fix IRQ affinity setting · 7a768d30
      Benjamin Herrenschmidt authored
      We call the cache_hwirq_map() function with a linux IRQ number
      but it expects a HW irq number. This triggers a BUG on multic-chip
      setups in addition to not doing the right thing.
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      7a768d30
    • Srikar Dronamraju's avatar
      powerpc: Implement GET_IP/SET_IP · e6289427
      Srikar Dronamraju authored
      With this change, helpers such as instruction_pointer() et al, get defined
      in the generic header in terms of GET_IP
      
      Removed the unnecessary definition of profile_pc in !CONFIG_SMP case as
      suggested by Mike Frysinger.
      Signed-off-by: default avatarSrikar Dronamraju <srikar@linux.vnet.ibm.com>
      Signed-off-by: default avatarAnanth N Mavinakayanahalli <ananth@in.ibm.com>
      Acked-by: default avatarMike Frysinger <vapier@gentoo.org>
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      e6289427
    • Benjamin Herrenschmidt's avatar
      powerpc/wsp: Permanently enable PCI class code workaround · 454c0bfd
      Benjamin Herrenschmidt authored
      It appears that on the Chroma card, the class code of the root
      complex is still wrong even on DD2 or later chips. This could
      be a firmware issue, but that breaks resource allocation so let's
      unconditionally fix it up.
      Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
      454c0bfd
    • Seungwon Jeon's avatar
      mmc: dw_mmc: Fix PIO mode with support of highmem · f9c2a0dc
      Seungwon Jeon authored
      Current PIO mode makes a kernel crash with CONFIG_HIGHMEM.
      Highmem pages have a NULL from sg_virt(sg).
      This patch fixes the following problem.
      
      Unable to handle kernel NULL pointer dereference at virtual address 00000000
      pgd = c0004000
      [00000000] *pgd=00000000
      Internal error: Oops: 817 [#1] PREEMPT SMP
      Modules linked in:
      CPU: 0    Not tainted  (3.0.15-01423-gdbf465f #589)
      PC is at dw_mci_pull_data32+0x4c/0x9c
      LR is at dw_mci_read_data_pio+0x54/0x1f0
      pc : [<c0358824>]    lr : [<c035988c>]    psr: 20000193
      sp : c0619d48  ip : c0619d70  fp : c0619d6c
      r10: 00000000  r9 : 00000002  r8 : 00001000
      r7 : 00000200  r6 : 00000000  r5 : e1dd3100  r4 : 00000000
      r3 : 65622023  r2 : 0000007f  r1 : eeb96000  r0 : e1dd3100
      Flags: nzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment
      xkernel
      Control: 10c5387d  Table: 61e2004a  DAC: 00000015
      Process swapper (pid: 0, stack limit = 0xc06182f0)
      Stack: (0xc0619d48 to 0xc061a000)
      9d40:                   e1dd3100 e1a4f000 00000000 e1dd3100 e1a4f000 00000200
      9d60: c0619da4 c0619d70 c035988c c03587e4 c0619d9c e18158f4 e1dd3100 e1dd3100
      9d80: 00000020 00000000 00000000 00000020 c06e8a84 00000000 c0619e04 c0619da8
      9da0: c0359b24 c0359844 e18158f4 e1dd3164 e1dd3168 e1dd3150 3d02fc79 e1dd3154
      9dc0: e1dd3178 00000000 00000020 00000000 e1dd3150 00000000 c10dd7e8 e1a84900
      9de0: c061e7cc 00000000 00000000 0000008d c06e8a84 c061e780 c0619e4c c0619e08
      9e00: c00c4738 c0359a34 3d02fc79 00000000 c0619e4c c05a1698 c05a1670 c05a165c
      9e20: c04de8b0 c061e780 c061e7cc e1a84900 ffffed68 0000008d c0618000 00000000
      9e40: c0619e6c c0619e50 c00c48b4 c00c46c8 c061e780 c00423ac c061e7cc ffffed68
      9e60: c0619e8c c0619e70 c00c7358 c00c487c 0000008d ffffee38 c0618000 ffffed68
      9e80: c0619ea4 c0619e90 c00c4258 c00c72b0 c00423ac ffffee38 c0619ecc c0619ea8
      9ea0: c004241c c00c4234 ffffffff f8810000 0000006d 00000002 00000001 7fffffff
      9ec0: c0619f44 c0619ed0 c0048bc0 c00423c4 220ae7a9 00000000 386f0d30 0005d3a4
      9ee0: c00423ac c10dd0b8 c06f2cd8 c0618000 c0594778 c003a674 7fffffff c0619f44
      9f00: 386f0d30 c0619f18 c00a6f94 c005be3c 80000013 ffffffff 386f0d30 0005d3a4
      9f20: 386f0d30 0005d2d1 c10dd0a8 c10dd0b8 c06f2cd8 c0618000 c0619f74 c0619f48
      9f40: c0345858 c005be00 c00a2440 c0618000 c0618000 c00410d8 c06c1944 c00410fc
      9f60: c0594778 c003a674 c0619f9c c0619f78 c004a7e8 c03457b4 c0618000 c06c18f8
      9f80: 00000000 c0039c70 c06c18d4 c003a674 c0619fb4 c0619fa0 c04ceafc c004a714
      9fa0: c06287b4 c06c18f8 c0619ff4 c0619fb8 c0008b68 c04cea68 c0008578 00000000
      9fc0: 00000000 c003a674 00000000 10c5387d c0628658 c003aa78 c062f1c4 4000406a
      9fe0: 413fc090 00000000 00000000 c0619ff8 40008044 c0008858 00000000 00000000
      Backtrace:
      [<c03587d8>] (dw_mci_pull_data32+0x0/0x9c) from [<c035988c>] (dw_mci_read_data_pio+0x54/0x1f0)
       r6:00000200 r5:e1a4f000 r4:e1dd3100
       [<c0359838>] (dw_mci_read_data_pio+0x0/0x1f0) from [<c0359b24>] (dw_mci_interrupt+0xfc/0x4a4)
      [<c0359a28>] (dw_mci_interrupt+0x0/0x4a4) from [<c00c4738>] (handle_irq_event_percpu+0x7c/0x1b4)
      [<c00c46bc>] (handle_irq_event_percpu+0x0/0x1b4) from [<c00c48b4>] (handle_irq_event+0x44/0x64)
      [<c00c4870>] (handle_irq_event+0x0/0x64) from [<c00c7358>] (handle_fasteoi_irq+0xb4/0x124)
       r7:ffffed68 r6:c061e7cc r5:c00423ac r4:c061e780
       [<c00c72a4>] (handle_fasteoi_irq+0x0/0x124) from [<c00c4258>] (generic_handle_irq+0x30/0x38)
       r7:ffffed68 r6:c0618000 r5:ffffee38 r4:0000008d
       [<c00c4228>] (generic_handle_irq+0x0/0x38) from [<c004241c>] (asm_do_IRQ+0x64/0xe0)
       r5:ffffee38 r4:c00423ac
       [<c00423b8>] (asm_do_IRQ+0x0/0xe0) from [<c0048bc0>] (__irq_svc+0x80/0x14c)
      Exception stack(0xc0619ed0 to 0xc0619f18)
      Signed-off-by: default avatarSeungwon Jeon <tgih.jun@samsung.com>
      Acked-by: default avatarWill Newton <will.newton@imgtec.com>
      Cc: stable <stable@vger.kernel.org>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      f9c2a0dc
    • Ludovic Desroches's avatar
      mmc: atmel-mci: save and restore sdioirq when soft reset is performed · 18ee684b
      Ludovic Desroches authored
      Sometimes a software reset is needed. Then some registers are saved and
      restored but the interrupt mask register is missing. It causes issues
      with sdio devices whose interrupts are masked after reset.
      Signed-off-by: default avatarLudovic Desroches <ludovic.desroches@atmel.com>
      Cc: stable <stable@vger.kernel.org>
      Signed-off-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      18ee684b
    • Rabin Vincent's avatar
    • Guennadi Liakhovetski's avatar
      mmc: sh_mmcif: fix late delayed work initialisation · 5ba85d95
      Guennadi Liakhovetski authored
      If the driver is loaded with a card in the slot, mmc_add_host() will
      schedule an immediate card-detection work, which will start IO and wait
      for command completion. Usually the kernel first returns to the sh_mmcif
      probe function, lets it finish and only then schedules the rescan work.
      But sometimes, expecially under heavy system load, the work will be
      scheduled immediately before returning to the probe method. In this case
      it is important for the driver to be fully prepared for IO. For sh_mmcif
      this means, that also the timeout work has to be initialised before
      calling mmc_add_host(). It is also better to prepare interrupts
      beforehand. Besides, since mmc_add_host() does card-detection itself,
      there is no need to do it again immediately afterwards.
      Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      5ba85d95
    • Guennadi Liakhovetski's avatar
      mmc: tmio_mmc: fix card eject during IO with DMA · e3de2be7
      Guennadi Liakhovetski authored
      When DMA is in use and the card is ejected during IO, DMA transfers have to
      be terminated, otherwise the dmaengine driver fails to operate properly,
      when the card is re-inserted.
      Signed-off-by: default avatarGuennadi Liakhovetski <g.liakhovetski@gmx.de>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      e3de2be7
    • Jurgen Heeks's avatar
      mmc: core: Fix comparison issue in mmc_compare_ext_csds · dd13b4ed
      Jurgen Heeks authored
      Found this issue during code review. Actually, there are two issues which
      both compensate together in lucky case.  In unlucky case the bus width
      probing might not work as expected.
      Signed-off-by: default avatarJurgen Heeks <jurgen.heeks@nokia.com>
      Reviewed-by: default avatarNamjae Jeon <linkinjeon@gmail.com>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      dd13b4ed
    • Girish K S's avatar
      mmc: core: Fix PowerOff Notify suspend/resume · 3e73c36b
      Girish K S authored
      Modified the mmc_poweroff to resume before sending the poweroff
      notification command. In sleep mode only AWAKE and RESET commands are
      allowed, so before sending the poweroff notification command resume from
      sleep mode and then send the notification command.
      
      PowerOff Notify is tested on a Synopsis Designware Host Controller
      (eMMC 4.5). The suspend to RAM and resume works fine.
      Signed-off-by: default avatarGirish K S <girish.shivananjappa@linaro.org>
      Tested-by: default avatarGirish K S <girish.shivananjappa@linaro.org>
      Reviewed-by: default avatarSaugata Das <saugata.das@linaro.org>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      3e73c36b
    • Adrian Hunter's avatar
      mmc: sdhci-pci: set Medfield SDIO as non-removable · 012e4671
      Adrian Hunter authored
      Set Medfield SDIO as non-removable to avoid un-necessary
      card detect activity.
      Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
      Signed-off-by: default avatarChris Ball <cjb@laptop.org>
      012e4671