Commit graph

45930 commits

Author SHA1 Message Date
Linus Torvalds
ec7ae51753 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (204 commits)
  [SCSI] qla4xxx: export address/port of connection (fix udev disk names)
  [SCSI] ipr: Fix BUG on adapter dump timeout
  [SCSI] megaraid_sas: Fix instance access in megasas_reset_timer
  [SCSI] hpsa: change confusing message to be more clear
  [SCSI] iscsi class: fix vlan configuration
  [SCSI] qla4xxx: fix data alignment and use nl helpers
  [SCSI] iscsi class: fix link local mispelling
  [SCSI] iscsi class: Replace iscsi_get_next_target_id with IDA
  [SCSI] aacraid: use lower snprintf() limit
  [SCSI] lpfc 8.3.27: Change driver version to 8.3.27
  [SCSI] lpfc 8.3.27: T10 additions for SLI4
  [SCSI] lpfc 8.3.27: Fix queue allocation failure recovery
  [SCSI] lpfc 8.3.27: Change algorithm for getting physical port name
  [SCSI] lpfc 8.3.27: Changed worst case mailbox timeout
  [SCSI] lpfc 8.3.27: Miscellanous logic and interface fixes
  [SCSI] megaraid_sas: Changelog and version update
  [SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic
  [SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support
  [SCSI] megaraid_sas: Add support for MegaRAID 9360/9380 12GB/s controllers
  [SCSI] megaraid_sas: Clear FUSION_IN_RESET before enabling interrupts
  ...
2011-10-28 16:44:18 -07:00
Linus Torvalds
97d2eb13a0 Merge branch 'for-linus' of git://ceph.newdream.net/git/ceph-client
* 'for-linus' of git://ceph.newdream.net/git/ceph-client:
  libceph: fix double-free of page vector
  ceph: fix 32-bit ino numbers
  libceph: force resend of osd requests if we skip an osdmap
  ceph: use kernel DNS resolver
  ceph: fix ceph_monc_init memory leak
  ceph: let the set_layout ioctl set single traits
  Revert "ceph: don't truncate dirty pages in invalidate work thread"
  ceph: replace leading spaces with tabs
  libceph: warn on msg allocation failures
  libceph: don't complain on msgpool alloc failures
  libceph: always preallocate mon connection
  libceph: create messenger with client
  ceph: document ioctls
  ceph: implement (optional) max read size
  ceph: rename rsize -> rasize
  ceph: make readpages fully async
2011-10-28 16:42:18 -07:00
Linus Torvalds
68d99b2c8e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (549 commits)
  ALSA: hda - Fix ADC input-amp handling for Cx20549 codec
  ALSA: hda - Keep EAPD turned on for old Conexant chips
  ALSA: hda/realtek - Fix missing volume controls with ALC260
  ASoC: wm8940: Properly set codec->dapm.bias_level
  ALSA: hda - Fix pin-config for ASUS W90V
  ALSA: hda - Fix surround/CLFE headphone and speaker pins order
  ALSA: hda - Fix typo
  ALSA: Update the sound git tree URL
  ALSA: HDA: Add new revision for ALC662
  ASoC: max98095: Convert codec->hw_write to snd_soc_write
  ASoC: keep pointer to resource so it can be freed
  ASoC: sgtl5000: Fix wrong mask in some snd_soc_update_bits calls
  ASoC: wm8996: Fix wrong mask for setting WM8996_AIF_CLOCKING_2
  ASoC: da7210: Add support for line out and DAC
  ASoC: da7210: Add support for DAPM
  ALSA: hda/realtek - Fix DAC assignments of multiple speakers
  ASoC: Use SGTL5000_LINREG_VDDD_MASK instead of hardcoded mask value
  ASoC: Set sgtl5000->ldo in ldo_regulator_register
  ASoC: wm8996: Use SND_SOC_DAPM_AIF_OUT for AIF2 Capture
  ASoC: wm8994: Use SND_SOC_DAPM_AIF_OUT for AIF3 Capture
  ...
2011-10-28 14:25:01 -07:00
Linus Torvalds
0e59e7e7fe Merge branch 'next-rebase' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci
* 'next-rebase' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci:
  PCI: Clean-up MPS debug output
  pci: Clamp pcie_set_readrq() when using "performance" settings
  PCI: enable MPS "performance" setting to properly handle bridge MPS
  PCI: Workaround for Intel MPS errata
  PCI: Add support for PASID capability
  PCI: Add implementation for PRI capability
  PCI: Export ATS functions to modules
  PCI: Move ATS implementation into own file
  PCI / PM: Remove unnecessary error variable from acpi_dev_run_wake()
  PCI hotplug: acpiphp: Prevent deadlock on PCI-to-PCI bridge remove
  PCI / PM: Extend PME polling to all PCI devices
  PCI quirk: mmc: Always check for lower base frequency quirk for Ricoh 1180:e823
  PCI: Make pci_setup_bridge() non-static for use by arch code
  x86: constify PCI raw ops structures
  PCI: Add quirk for known incorrect MPSS
  PCI: Add Solarflare vendor ID and SFC4000 device IDs
2011-10-28 14:20:44 -07:00
Linus Torvalds
46b51ea209 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc: (83 commits)
  mmc: fix compile error when CONFIG_BLOCK is not enabled
  mmc: core: Cleanup eMMC4.5 conditionals
  mmc: omap_hsmmc: if multiblock reads are broken, disable them
  mmc: core: add workaround for controllers with broken multiblock reads
  mmc: core: Prevent too long response times for suspend
  mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00
  mmc: sd: Handle SD3.0 cards not supporting UHS-I bus speed mode
  mmc: core: support HPI send command
  mmc: core: Add cache control for eMMC4.5 device
  mmc: core: Modify the timeout value for writing power class
  mmc: core: new discard feature support at eMMC v4.5
  mmc: core: mmc sanitize feature support for v4.5
  mmc: dw_mmc: modify DATA register offset
  mmc: sdhci-pci: add flag for devices that can support runtime PM
  mmc: omap_hsmmc: ensure pbias configuration is always done
  mmc: core: Add Power Off Notify Feature eMMC 4.5
  mmc: sdhci-s3c: fix potential NULL dereference
  mmc: replace printk with appropriate display macro
  mmc: core: Add default timeout value for CMD6
  mmc: sdhci-pci: add runtime pm support
  ...
2011-10-28 14:16:11 -07:00
Linus Torvalds
1fdb24e969 Merge branch 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'devel-stable' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm: (178 commits)
  ARM: 7139/1: fix compilation with CONFIG_ARM_ATAG_DTB_COMPAT and large TEXT_OFFSET
  ARM: gic, local timers: use the request_percpu_irq() interface
  ARM: gic: consolidate PPI handling
  ARM: switch from NO_MACH_MEMORY_H to NEED_MACH_MEMORY_H
  ARM: mach-s5p64x0: remove mach/memory.h
  ARM: mach-s3c64xx: remove mach/memory.h
  ARM: plat-mxc: remove mach/memory.h
  ARM: mach-prima2: remove mach/memory.h
  ARM: mach-zynq: remove mach/memory.h
  ARM: mach-bcmring: remove mach/memory.h
  ARM: mach-davinci: remove mach/memory.h
  ARM: mach-pxa: remove mach/memory.h
  ARM: mach-ixp4xx: remove mach/memory.h
  ARM: mach-h720x: remove mach/memory.h
  ARM: mach-vt8500: remove mach/memory.h
  ARM: mach-s5pc100: remove mach/memory.h
  ARM: mach-tegra: remove mach/memory.h
  ARM: plat-tcc: remove mach/memory.h
  ARM: mach-mmp: remove mach/memory.h
  ARM: mach-cns3xxx: remove mach/memory.h
  ...

Fix up mostly pretty trivial conflicts in:
 - arch/arm/Kconfig
 - arch/arm/include/asm/localtimer.h
 - arch/arm/kernel/Makefile
 - arch/arm/mach-shmobile/board-ap4evb.c
 - arch/arm/mach-u300/core.c
 - arch/arm/mm/dma-mapping.c
 - arch/arm/mm/proc-v7.S
 - arch/arm/plat-omap/Kconfig
largely due to some CONFIG option renaming (ie CONFIG_PM_SLEEP ->
CONFIG_ARM_CPU_SUSPEND for the arm-specific suspend code etc) and
addition of NEED_MACH_MEMORY_H next to HAVE_IDE.
2011-10-28 12:02:27 -07:00
Linus Torvalds
f362f98e7c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/vfs-queue: (21 commits)
  leases: fix write-open/read-lease race
  nfs: drop unnecessary locking in llseek
  ext4: replace cut'n'pasted llseek code with generic_file_llseek_size
  vfs: add generic_file_llseek_size
  vfs: do (nearly) lockless generic_file_llseek
  direct-io: merge direct_io_walker into __blockdev_direct_IO
  direct-io: inline the complete submission path
  direct-io: separate map_bh from dio
  direct-io: use a slab cache for struct dio
  direct-io: rearrange fields in dio/dio_submit to avoid holes
  direct-io: fix a wrong comment
  direct-io: separate fields only used in the submission path from struct dio
  vfs: fix spinning prevention in prune_icache_sb
  vfs: add a comment to inode_permission()
  vfs: pass all mask flags check_acl and posix_acl_permission
  vfs: add hex format for MAY_* flag values
  vfs: indicate that the permission functions take all the MAY_* flags
  compat: sync compat_stats with statfs.
  vfs: add "device" tag to /proc/self/mountstats
  cleanup: vfs: small comment fix for block_invalidatepage
  ...

Fix up trivial conflict in fs/gfs2/file.c (llseek changes)
2011-10-28 10:49:34 -07:00
Linus Torvalds
dabcbb1bae Merge branch '3.2-without-smb2' of git://git.samba.org/sfrench/cifs-2.6
* '3.2-without-smb2' of git://git.samba.org/sfrench/cifs-2.6: (52 commits)
  Fix build break when freezer not configured
  Add definition for share encryption
  CIFS: Make cifs_push_locks send as many locks at once as possible
  CIFS: Send as many mandatory unlock ranges at once as possible
  CIFS: Implement caching mechanism for posix brlocks
  CIFS: Implement caching mechanism for mandatory brlocks
  CIFS: Fix DFS handling in cifs_get_file_info
  CIFS: Fix error handling in cifs_readv_complete
  [CIFS] Fixup trivial checkpatch warning
  [CIFS] Show nostrictsync and noperm mount options in /proc/mounts
  cifs, freezer: add wait_event_freezekillable and have cifs use it
  cifs: allow cifs_max_pending to be readable under /sys/module/cifs/parameters
  cifs: tune bdi.ra_pages in accordance with the rsize
  cifs: allow for larger rsize= options and change defaults
  cifs: convert cifs_readpages to use async reads
  cifs: add cifs_async_readv
  cifs: fix protocol definition for READ_RSP
  cifs: add a callback function to receive the rest of the frame
  cifs: break out 3rd receive phase into separate function
  cifs: find mid earlier in receive codepath
  ...
2011-10-28 10:43:32 -07:00
Andi Kleen
5760495a87 vfs: add generic_file_llseek_size
Add a generic_file_llseek variant to the VFS that allows passing in
the maximum file size of the file system, instead of always
using maxbytes from the superblock.

This can be used to eliminate some cut'n'paste seek code in ext4.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-28 14:58:59 +02:00
Andi Kleen
ef3d0fd27e vfs: do (nearly) lockless generic_file_llseek
The i_mutex lock use of generic _file_llseek hurts.  Independent processes
accessing the same file synchronize over a single lock, even though
they have no need for synchronization at all.

Under high utilization this can cause llseek to scale very poorly on larger
systems.

This patch does some rethinking of the llseek locking model:

First the 64bit f_pos is not necessarily atomic without locks
on 32bit systems. This can already cause races with read() today.
This was discussed on linux-kernel in the past and deemed acceptable.
The patch does not change that.

Let's look at the different seek variants:

SEEK_SET: Doesn't really need any locking.
If there's a race one writer wins, the other loses.

For 32bit the non atomic update races against read()
stay the same. Without a lock they can also happen
against write() now.  The read() race was deemed
acceptable in past discussions, and I think if it's
ok for read it's ok for write too.

=> Don't need a lock.

SEEK_END: This behaves like SEEK_SET plus it reads
the maximum size too. Reading the maximum size would have the
32bit atomic problem. But luckily we already have a way to read
the maximum size without locking (i_size_read), so we
can just use that instead.

Without i_mutex there is no synchronization with write() anymore,
however since the write() update is atomic on 64bit it just behaves
like another racy SEEK_SET.  On non atomic 32bit it's the same
as SEEK_SET.

=> Don't need a lock, but need to use i_size_read()

SEEK_CUR: This has a read-modify-write race window
on the same file. One could argue that any application
doing unsynchronized seeks on the same file is already broken.
But for the sake of not adding a regression here I'm
using the file->f_lock to synchronize this. Using this
lock is much better than the inode mutex because it doesn't
synchronize between processes.

=> So still need a lock, but can use a f_lock.

This patch implements this new scheme in generic_file_llseek.
I dropped generic_file_llseek_unlocked and changed all callers.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-28 14:58:58 +02:00
Aneesh Kumar K.V
8522ca5818 vfs: add hex format for MAY_* flag values
We are going to add more flags and having them in hex format
make it simpler

Acked-by: J. Bruce Fields <bfields@redhat.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-10-28 14:58:54 +02:00
Linus Torvalds
37be944a02 Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (290 commits)
  Revert "drm/ttm: add a way to bo_wait for either the last read or last write"
  Revert "drm/radeon/kms: add a new gem_wait ioctl with read/write flags"
  vmwgfx: Don't pass unused arguments to do_dirty functions
  vmwgfx: Emulate depth 32 framebuffers
  drm/radeon: Lower the severity of the radeon lockup messages.
  drm/i915/dp: Fix eDP on PCH DP on CPT/PPT
  drm/i915/dp: Introduce is_cpu_edp()
  drm/i915: use correct SPD type value
  drm/i915: fix ILK+ infoframe support
  drm/i915: add DP test request handling
  drm/i915: read full receiver capability field during DP hot plug
  drm/i915/dp: Remove eDP special cases from bandwidth checks
  drm/i915/dp: Fix the math in intel_dp_link_required
  drm/i915/panel: Always record the backlight level again (but cleverly)
  i915: Move i915_read/write out of line
  drm/i915: remove transcoder PLL mashing from mode_set per specs
  drm/i915: if transcoder disable fails, say which
  drm/i915: set watermarks for third pipe on IVB
  drm/i915: export a CPT mode set verification function
  drm/i915: fix transcoder PLL select masking
  ...
2011-10-28 05:54:23 -07:00
Linus Torvalds
8e6d539e0f Merge branch 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, random: Verify RDRAND functionality and allow it to be disabled
  x86, random: Architectural inlines to get random integers with RDRAND
  random: Add support for architectural random hooks

Fix up trivial conflicts in drivers/char/random.c: the architectural
random hooks touched "get_random_int()" that was simplified to use MD5
and not do the keyptr thing any more (see commit 6e5714eaf7: "net:
Compute protocol sequence numbers and fragment IDs using MD5").
2011-10-28 05:29:07 -07:00
Steve French
e0c8ea1a69 Fix build break when freezer not configured
fs/cifs/transport.c: In function 'wait_for_response':
fs/cifs/transport.c:328: error: implicit declaration of function 'wait_event_freezekillable'

Caused by commit f06ac72e92 ("cifs, freezer: add
wait_event_freezekillable and have cifs use it").  In this config,
CONFIG_FREEZER is not set.

Reviewed-by: Shirish Pargaonkar <shirishp@us.ibm.com>
CC: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
2011-10-27 16:53:40 -05:00
Dave Airlie
1717c0e23f Revert "drm/ttm: add a way to bo_wait for either the last read or last write"
This reverts commit dfadbbdb57.

Further upstream discussion between Marek and Thomas decided this wasn't
fully baked and needed further work, so revert it before it hits mainline.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-27 18:28:37 +02:00
Dave Airlie
83f30d0e03 Revert "drm/radeon/kms: add a new gem_wait ioctl with read/write flags"
This reverts commit d3ed74027f.

Further upstream discussion between Thomas and Marek decided this needed
more work and driver specifics. So revert before it goes upstream.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-10-27 18:15:10 +02:00
Namjae Jeon
a6029e1f75 mmc: fix compile error when CONFIG_BLOCK is not enabled
'DISK_NAME_LEN' is undeclared when CONFIG_BLOCK is disabled; its use was
introduced via genhd.h by the general purpose partition patch.

To fix, we just add our own MAX_MMC_PART_NAME_LEN macro instead of using
DISK_NAME_LEN.

Reported-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Andrei Warkentin <andreiw@vmware.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27 09:11:34 -04:00
Paul Walmsley
2bf22b3982 mmc: core: add workaround for controllers with broken multiblock reads
Due to hardware bugs, some MMC host controllers don't support
multiple-block reads[1].  To resolve, add a new MMC capability flag,
MMC_CAP2_NO_MULTI_READ, which can be set by affected host controller
drivers.  When this capability is set, all reads will be issued one
sector at a time.

1. See for example Advisory 2.1.1.128 "MMC: Multiple Block Read
Operation Issue" in _OMAP3530/3525/3515/3503 Silicon Errata_
Revision F (October 2010) (SPRZ278F), available from
http://focus.ti.com/lit/er/sprz278f/sprz278f.pdf

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Dave Hylands <dhylands@gmail.com>
Tested-by: Steve Sakoman <sakoman@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-27 09:10:57 -04:00
Takashi Iwai
bb14eb0da7 Merge branch 'topic/asoc' into for-linus 2011-10-27 10:43:40 +02:00
Linus Torvalds
396e6e49c5 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (68 commits)
  Input: adp5589-keys - add support for the ADP5585 derivatives
  Input: imx_keypad - add pm suspend and resume support
  Input: force feedback - potential integer wrap in input_ff_create()
  Input: tsc2007 - make sure that X plate resistance is specified
  Input: serio_raw - fix memory leak when closing char device
  Input: serio_raw - kick clients when disconnecting port
  Input: serio_raw - explicitly mark disconnected ports as dead
  Input: serio_raw - fix coding style issues
  Input: serio_raw - use dev_*() for messages
  Input: serio_raw - use bool for boolean data
  Input: serio_raw - perform proper locking when adding clients to list
  Input: serio_raw - rename serio_raw_list to serio_raw_client
  Input: serio_raw - use kref instead of rolling out its own refcounting
  Input: psmouse - switch to using dev_*() for messages
  Input: wacom - correct max Y value on medium bamboos
  Input: wacom - add ABS_DISTANCE to Bamboo Pen reports
  Input: wacom - remove unneeded touch pressure initialization
  Input: lm8323 - wrap suspend and resume in CONFIG_PM_SLEEP
  Input: ad7879-i2c - wrap suspend and resume in CONFIG_PM_SLEEP
  Input: synaptics_i2c - wrap suspend and resume in CONFIG_PM_SLEEP
  ...
2011-10-27 08:44:20 +02:00
Linus Torvalds
18974369cf Merge branch 'clk' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm
* 'clk' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
  ARM: 7131/1: clkdev: Add Common Macro for clk_lookup
  clk: spi-pl022: convert to clk_prepare()/clk_unprepare()
  clk: timer-sp: convert to clk_prepare()/clk_unprepare()
  clk: sa1111: convert to clk_prepare()/clk_unprepare()
  clk: mmci: convert to clk_prepare()/clk_unprepare()
  clk: amba-pl011: convert to clk_prepare()/clk_unprepare()
  clk: amba-pl010: convert to clk_prepare()/clk_unprepare()
  clk: amba-clcd: convert to clk_prepare()/clk_unprepare()
  clk: amba bus: convert to clk_prepare()/clk_unprepare()
  clk: provide prepare/unprepare functions
2011-10-27 08:41:50 +02:00
Linus Torvalds
5fffb9513c Merge branch 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6
* 'devicetree/next' of git://git.secretlab.ca/git/linux-2.6:
  of_mdio: Don't phy_scan_fixups() twice
  Devicetree: Expand on ARM Primecell binding documentation
  dt: Add empty of_match_node() macro
  dt: add empty dt helpers for non-dt build
  devicetree: fix build error on drivers/tty/serial/altera_jtaguart.c
  devicetree: Add ARM pl022 spi controller binding doc
  devicetree: Add ARM pl061 gpio controller binding doc
  of/irq: of_irq_find_parent: check for parent equal to child
  MAINTAINERS: update devicetree maintainers
  dt: add helper to read 64-bit integers
  tty: use of_match_ptr() for of_match_table entry
  OF: Add of_match_ptr() macro
  dt: add empty for_each_child_of_node, of_find_property
  devicetree: Document Qualcomm and Atmel prefixes
  serial/imx: add of_alias_get_id() reference back
  dt: add of_alias_scan and of_alias_get_id
  devicetree: Add a registry of vendor prefixes
2011-10-27 08:35:41 +02:00
Takashi Iwai
9430148d80 Merge branch 'topic/remove-irqf_disable' into for-linus 2011-10-26 23:51:48 +02:00
Takashi Iwai
d226657022 Merge branch 'topic/misc' into for-linus 2011-10-26 23:51:43 +02:00
Bing Zhao
b4625dab2c mmc: recognise SDIO cards with SDIO_CCCR_REV 3.00
Table 6-2: CCCR bit Definitions, address 00h.  Part E1 SDIO Simplified
Specification Version 3.00, Feb. 25, 2011.

This patch has been tested with Marvell WLAN device SD8797.

Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:31 -04:00
Jaehoon Chung
eb0d8f135b mmc: core: support HPI send command
HPI command is defined in eMMC4.41.
This feature is important for eMMC4.5 devices.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:29 -04:00
Seungwon Jeon
881d1c25f7 mmc: core: Add cache control for eMMC4.5 device
This patch adds cache feature of eMMC4.5 Spec.
If device supports cache capability, host can utilize some specific
operations.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:28 -04:00
Kyungmin Park
b3bf915308 mmc: core: new discard feature support at eMMC v4.5
MMC v4.5 supports the DISCARD feature (CMD38).  It's different from
trim and there's no check bit.  Currently it's only supported at v4.5.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:27 -04:00
Kyungmin Park
d9ddd62943 mmc: core: mmc sanitize feature support for v4.5
In the v4.5, there's no secure erase & trim support.
Instead it supports the sanitize feature.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:26 -04:00
Jaehoon Chung
4e0a5adf46 mmc: dw_mmc: modify DATA register offset
In dw_mmc 2.40a spec, Data register's offset is changed.
Before we used Data register offset 0x100. but if somebody uses a
2.40a controller, we must use 0x200 for Data register.

This patch adds a version-id checking point and uses SDMMC_DATA(x)
instead of SDMMC_DATA.  It assumes 2.40a is the latest version.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:25 -04:00
Girish K S
bec8726abc mmc: core: Add Power Off Notify Feature eMMC 4.5
This patch adds support for the power off notify feature, available in
eMMC 4.5 devices. If the host has support for this feature, then the
mmc core will notify the device by setting the POWER_OFF_NOTIFICATION
byte in the extended csd register with a value of 1 (POWER_ON).

For suspend mode short timeout is used, whereas for the normal poweroff
long timeout is used.

Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:23 -04:00
Seungwon Jeon
b23cf0bd55 mmc: core: Add default timeout value for CMD6
EXT_CSD[248] includes the default maximum timeout for CMD6.
This field is added at eMMC4.5 Spec. And it can be used for default
timeout except for some operations which don't define the timeout
(i.e. background operation, sanitize, flush cache) in eMMC4.5 Spec.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:21 -04:00
Adrian Hunter
66fd8ad510 mmc: sdhci-pci: add runtime pm support
Ths patch allows runtime PM for sdhci-pci, runtime suspending after
inactivity of 50ms and ensuring runtime resume before SDHC registers
are accessed.  During runtime suspend, interrupts are masked.
The host controller state is restored at runtime resume.

For Medfield, the host controller's card detect mechanism is
supplanted by an always-on GPIO which provides for card detect wake-up.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:20 -04:00
Namjae Jeon
e0c368d571 mmc: core: general purpose MMC partition support.
It allows gerneral purpose partitions in MMC Device.  And I try to simply
make mmc_blk_alloc_parts using mmc_part structure suggested by Andrei
Warkentin.  After patching, we see general purpose partitions like this:
> cat /proc/partitions
          179 0 847872 mmcblk0
          179 192 4096 mmcblk0gp3
          179 160 4096 mmcblk0gp2
          179 128 4096 mmcblk0gp1
          179 96  1052672 mmcblk0gp0
          179 64  1024 mmcblk0boot1
          179 32  1024 mmcblk0boot0

Signed-off-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Andrei Warkentin <awarkentin@vmware.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:17 -04:00
Adrian Hunter
f7c56ef2af mmc: block: support no access to boot partitions
Intel Medfield platform blocks access to eMMC boot partitions which
results in switch errors.  Since there is no access, mmcboot0/1
devices should not be created.  Add a host capability to reflect that.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:15 -04:00
Girish K S
b87d8dbf6c mmc: core: eMMC 4.5 Power Class Selection Feature
This patch adds the power class selection feature available for mmc
versions 4.0 and above.  During the enumeration stage before switching
to the lower data bus, check if the power class is supported for the
current bus width. If the power class is available then switch to the
power class and use the higher data bus. If power class is not supported
then switch to the lower data bus in a worst case.

Signed-off-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:13 -04:00
Guennadi Liakhovetski
714c4a6e3a mmc: sh_mmcif: simplify platform data
Provide platforms with a simplified way to specify MMCIF DMA slave IDs in
a way, similar to SDHI and other sh_dma clients.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:09 -04:00
Adrian Hunter
b2499518b5 mmc: core: add eMMC hardware reset support
eMMC's may have a hardware reset line.  This patch provides a
host controller operation to implement hardware reset and
a function to reset and reinitialize the card.  Also, for MMC,
the reset is always performed before initialization.

The host must set the new host capability MMC_CAP_HW_RESET
to enable hardware reset.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:05 -04:00
Per Forlin
7c8a2829c2 mmc: core: clarify how to use post_req in case of errors
The err condition in post_req() is set to undo a call made to pre_req()
that hasn't been started yet.  The err condition is not set if an MMC
request returns an error.

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:04 -04:00
Stefan Nilsson XK
9a0da648ff mmc: sdio: Workaround for dev with broken CMD53
Adds a quirk which can be turned on for SDIO devices that do not support
512 byte requests in byte mode during CMD53. These requests will always
be sent in block mode instead.

This patch also enables this quirk for ST-Ericsson CW1200 WLAN device.

Signed-off-by: Stefan Nilsson XK <stefan.xk.nilsson@stericsson.com>
Signed-off-by: Ulf HANSSON <ulf.hansson@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 16:32:02 -04:00
Linus Torvalds
138c4ae9cf Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
* 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux:
  tools, slub: Fix off-by-one buffer corruption after readlink() call
  slub: Discard slab page when node partial > minimum partial number
  slub: correct comments error for per cpu partial
  mm: restrict access to slab files under procfs and sysfs
  slub: Code optimization in get_partial_node()
  slub: doc: update the slabinfo.c file path
  slub: explicitly document position of inserting slab to partial list
  slub: update slabinfo tools to report per cpu partial list statistics
  slub: per cpu cache for partial pages
  slub: return object pointer from get_partial() / new_slab().
  slub: pass kmem_cache_cpu pointer to get_partial()
  slub: Prepare inuse field in new_slab()
  slub: Remove useless statements in __slab_alloc
  slub: free slabs without holding locks
  slub: use print_hex_dump
  slab: use print_hex_dump
2011-10-26 21:46:18 +02:00
Simon Horman
d5098cb63b mmc: sdhi: Allow named IRQs to use specific handlers
Allow named IRQs to use corresponding specific handlers. If named IRQs are
used, at least an "sdcard" IRQ has to be specified by the platform. If
names are not used, an arbitrary number of IRQs can be provided by the
platform, in which case the generic ISR will be used for each of them.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
[g.liakhovetski@gmx.de: style and typo corrections, platform data check]
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 15:43:36 -04:00
Per Forlin
1b676f70c1 mmc: core: add random fault injection
This adds support to inject data errors after a completed host transfer.
The mmc core will return error even though the host transfer is successful.
This simple fault injection proved to be very useful to test the
non-blocking error handling in the mmc_blk_issue_rw_rq().
Random faults can also test how the host driver handles pre_req()
and post_req() in case of errors.

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Acked-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 15:43:34 -04:00
Ludovic Desroches
1ebbe3d31f mmc: atmel-mci: use ATMEL_PDC_SCND_BUF_OFF instead of a literal value
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 15:43:26 -04:00
Ludovic Desroches
2c96a293bb mmc: atmel-mci: change namespace
Homogenize namespace to atmci.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
2011-10-26 15:43:25 -04:00
Linus Torvalds
c28cfd60e4 Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
* 'for-linus' of git://git.open-osd.org/linux-open-osd: (21 commits)
  ore: Enable RAID5 mounts
  exofs: Support for RAID5 read-4-write interface.
  ore: RAID5 Write
  ore: RAID5 read
  fs/Makefile: Always inspect exofs/
  ore: Make ore_calc_stripe_info EXPORT_SYMBOL
  ore/exofs: Change ore_check_io API
  ore/exofs: Define new ore_verify_layout
  ore: Support for partial component table
  ore: Support for short read/writes
  exofs: Support for short read/writes
  ore: Remove check for ios->kern_buff in _prepare_for_striping to later
  ore: cleanup: Embed an ore_striping_info inside ore_io_state
  ore: Only IO one group at a time (API change)
  ore/exofs: Change the type of the devices array (API change)
  ore: Make ore_striping_info and ore_calc_stripe_info public
  exofs: Remove unused data_map member from exofs_sb_info
  exofs: Rename struct ore_components comps => oc
  exofs/super.c: local functions should be static
  exofs/ore.c: local functions should be static
  ...
2011-10-26 21:33:50 +02:00
Linus Torvalds
39adff5f69 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  time, s390: Get rid of compile warning
  dw_apb_timer: constify clocksource name
  time: Cleanup old CONFIG_GENERIC_TIME references that snuck in
  time: Change jiffies_to_clock_t() argument type to unsigned long
  alarmtimers: Fix error handling
  clocksource: Make watchdog reset lockless
  posix-cpu-timers: Cure SMP accounting oddities
  s390: Use direct ktime path for s390 clockevent device
  clockevents: Add direct ktime programming function
  clockevents: Make minimum delay adjustments configurable
  nohz: Remove "Switched to NOHz mode" debugging messages
  proc: Consider NO_HZ when printing idle and iowait times
  nohz: Make idle/iowait counter update conditional
  nohz: Fix update_ts_time_stat idle accounting
  cputime: Clean up cputime_to_usecs and usecs_to_cputime macros
  alarmtimers: Rework RTC device selection using class interface
  alarmtimers: Add try_to_cancel functionality
  alarmtimers: Add more refined alarm state tracking
  alarmtimers: Remove period from alarm structure
  alarmtimers: Remove interval cap limit hack
  ...
2011-10-26 17:15:03 +02:00
Pekka Enberg
e182a345d4 Merge branches 'slab/next' and 'slub/partial' into slab/for-linus 2011-10-26 18:09:12 +03:00
Linus Torvalds
8a4a8918ed Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  llist: Add back llist_add_batch() and llist_del_first() prototypes
  sched: Don't use tasklist_lock for debug prints
  sched: Warn on rt throttling
  sched: Unify the ->cpus_allowed mask copy
  sched: Wrap scheduler p->cpus_allowed access
  sched: Request for idle balance during nohz idle load balance
  sched: Use resched IPI to kick off the nohz idle balance
  sched: Fix idle_cpu()
  llist: Remove cpu_relax() usage in cmpxchg loops
  sched: Convert to struct llist
  llist: Add llist_next()
  irq_work: Use llist in the struct irq_work logic
  llist: Return whether list is empty before adding in llist_add()
  llist: Move cpu_relax() to after the cmpxchg()
  llist: Remove the platform-dependent NMI checks
  llist: Make some llist functions inline
  sched, tracing: Show PREEMPT_ACTIVE state in trace_sched_switch
  sched: Remove redundant test in check_preempt_tick()
  sched: Add documentation for bandwidth control
  sched: Return unused runtime on group dequeue
  ...
2011-10-26 17:08:43 +02:00
Linus Torvalds
7115e3fcf4 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (121 commits)
  perf symbols: Increase symbol KSYM_NAME_LEN size
  perf hists browser: Refuse 'a' hotkey on non symbolic views
  perf ui browser: Use libslang to read keys
  perf tools: Fix tracing info recording
  perf hists browser: Elide DSO column when it is set to just one DSO, ditto for threads
  perf hists: Don't consider filtered entries when calculating column widths
  perf hists: Don't decay total_period for filtered entries
  perf hists browser: Honour symbol_conf.show_{nr_samples,total_period}
  perf hists browser: Do not exit on tab key with single event
  perf annotate browser: Don't change selection line when returning from callq
  perf tools: handle endianness of feature bitmap
  perf tools: Add prelink suggestion to dso update message
  perf script: Fix unknown feature comment
  perf hists browser: Apply the dso and thread filters when merging new batches
  perf hists: Move the dso and thread filters from hist_browser
  perf ui browser: Honour the xterm colors
  perf top tui: Give color hints just on the percentage, like on --stdio
  perf ui browser: Make the colors configurable and change the defaults
  perf tui: Remove unneeded call to newtCls on startup
  perf hists: Don't format the percentage on hist_entry__snprintf
  ...

Fix up conflicts in arch/x86/kernel/kprobes.c manually.

Ingo's tree did the insane "add volatile to const array", which just
doesn't make sense ("volatile const"?).  But we could remove the const
*and* make the array volatile to make doubly sure that gcc doesn't
optimize it away..

Also fix up kernel/trace/ring_buffer.c non-data-conflicts manually: the
reader_lock has been turned into a raw lock by the core locking merge,
and there was a new user of it introduced in this perf core merge.  Make
sure that new use also uses the raw accessor functions.
2011-10-26 17:03:38 +02:00